WO2012022409A1

WO2012022409A1 - Cycloolefin polymer compositions, molded bodies, and use of said molded bodies

Info

Publication number: WO2012022409A1
Application number: PCT/EP2011/003614
Authority: WO
Inventors: Wilfried Hatke; Michael Grimm
Original assignee: Topas Advanced Polymers Gmbh
Priority date: 2010-08-17
Filing date: 2011-07-19
Publication date: 2012-02-23
Also published as: DE102010034643A1

Abstract

The invention relates to compositions containing A) cycloolefin polymer having a glass transition temperature of at least 140°C, B) polymer derived from one or more alpha-olefins, which possibly has further structural units derived from at least one alkane diene and/or from at least one vinyl aromatic monomer, and C) a selected polyolefin component as a phase mediator. Said compositions are characterized by excellent mechanical properties and in particular by high heat resistance. The compositions can be used to produce molded bodies that can be sterilized and that can be used in medical equipment.

Description

description

Cycloolefin polymer compositions, molded articles and their use

The present invention relates to cycloolefin polymer compositions containing selected polyolefins. These compositions have high heat resistance and can be used in many fields. For example, in medicine and medical technology, food technology, electronics and electrical engineering, the container and apparatus construction, the

Vehicle construction, in the vulcanization of elastomeric articles as well as

Packaging materials.

Cycloolefin polymers (hereinafter referred to as "COP") have been known for years, and typical representatives of these polymers are derived from norbornene, which, under ring-holding polymerization or under ring-opening polymerization, may together with comonomers be converted into the corresponding

(Co) polymers are converted. These polymers are characterized by excellent transparency and are used for the production of films, optical components and containers of all kinds.

It has also been proposed to combine COP with other polyolefins, for example with polyethylenes or with polypropylenes.

1-Olefins, such as ethylene and propylene can be prepared by means of various

Catalysts to polyolefins, in particular to polyethylenes and to

Polypropylenes (see for example EP 0 185 918 A2 and EP 0 387 690 A1).

Polyethylene can also be prepared by free-radical polymerization (cf., for example, US Pat. No. 3,336,281). It is then a low density material (LDPE) or copolymers of ethylene with 1-olefins of low density (LLDPE); In addition, there are catalytically produced polyethylenes which have high to medium density (HDPE, MDPE).

It is well known that important properties of polymers can be altered by alloying polymers with other polymers. For example, patents DD 214 137 and DD 214 623 describe thermoplastic construction materials based on polyolefins, which

at the same time have good heat resistance, chemical resistance, stiffness, toughness and very good dielectric properties. The

The compositions described contain as essential components norbornene-ethylene copolymers and polyethylene or branched polyolefins, optionally with the addition of stabilizers, lubricants, elastomers, thermoplastics and reinforcing materials. To improve the impact strength and notched impact strength, elastomers, e.g. elastomeric ethylene co- and terpolymers or graft copolymers added. The accessories of

Polyethylene or branched polyolefins to ethylene-norbornene copolymers, according to these documents, improve the chemical resistance and toughness of the norbornene-ethylene copolymer. Conversely, the addition of norbornene-ethylene copolymers to polyethylene or branched polyolefins resulted in an increase in strength, modulus, and hardness without a decrease in impact strength.

It is also known that polyolefin-thermoplastic combinations of 40 to 98% by weight of crystalline polyolefin and 2 to 60% by weight of random cyclic olefinic copolymer (T _g 70 to 210 ° C., crystallinity 0 to 5%) are good

Heat resistance and crack resistance and low shrinkage have (see JP 01/318052 A). Combinations of COP and crystalline polyolefins show, according to the published patent application JP 03/122148 A, improved melt processability.

A thermoplastic combination of 5 to 90 weight percent linear polyolefin, which comprises 8 to 40% ultrahigh molecular weight polyolefin of selected viscosity and 60 to 92% low to high molecular weight polyolefin of selected viscosity and 95 to 10 weight% of at least one cycloolefin thermoplastic selected from ring-opening polymers and ring-opening copolymers is described in US 4,990,559 A.

Alloying COP with other polyolefins is attractive because the latter are relatively inexpensive and thus afford the corresponding alloys cost advantages. EP 0 566 988 A1 discloses such polymer alloys of COP, polyolefins and additives. Polyolefins are polymers which are derived from open-chain noncyclic olefins, for example polypropylene and polyethylene or polyolefin co- and terpolymers and / or their graft copolymers. As additives cycloolefin block copolymers are called; These consist of hard and soft blocks and have the function of compatibilizers between the phases of the

Polymer blends. This document discloses a process in which, starting from favorable combinations of cycloolefin polymers, polyolefins and additives, polymer alloys are obtained which have the highest possible level of material properties, in particular strength, hardness, heat resistance and toughness.

DE 195 36 043 A1 discloses a polyolefin film with selected amorphous COP and further polyolefin, preferably polypropylene, such as isotactic propylene homopolymer, or mixtures of propylene homo- or

copolymers with other polyolefins, such as HDPE, LDPE and LLDPE. For the production of homogeneous polymer mixtures, it is proposed in this document to choose the average molecular weight of the COP within certain limits and a certain ratio of

Molecular weight of the COP to comply with the molecular weight of the olefin polymer.

Finally, WO 2004/026946 A1 discloses a process for producing a packaging, in which a thermoformable film with high heat resistance and water vapor barrier is used. The film contains a cycloolefin copolymer with a glass transition temperature between 65 and 200 ° C and can also polyethylenes of different densities include, for example, HDPE, LDPE and LLDPE, or other polymers such as ethylene-vinyl acetate copolymer or polypropylene.

From the prior art and from our own experiments is also known that moldings of combinations of COP with polypropylenes or with polyethylenes are generally modified by the COP additive in their properties. Thus, the addition of COP usually leads to the increase of the modulus of elasticity, the creep resistance and the

Heat distortion ("HDT") and to reduce the tackiness at high temperatures ("hot tack"), the water permeability and the

Wear resistance ("warparge") Moreover, these moldings are generally characterized by a high transparency and a good

Resistance to chemicals, in particular by a high water vapor resistance. For economic reasons one tries to mix the comparatively high-priced COP with cheaper polymers; When possible, products should be created in which the good properties of the COP are maintained or even improved.

Selected blends based on COP and other polyolefins have been found which give high-level moldings

Material properties can be processed. These moldings are characterized in particular by high strength, hardness, heat resistance and toughness. The object of the present invention is therefore to provide COP compositions and moldings produced therefrom having the abovementioned properties.

The present invention relates to a composition containing

A) at least one cyclolefin polymer having a glass transition temperature of at least 140 ° C,

B) at least one derived from one or more alpha olefins

Polymer, optionally further of at least one alkanediene and / or of at least one vinyl aromatic monomer having derived structural units, and

at least one compatibility of the components A) and B) and differing from component B)

Component that are selected from the group

- The block copolymers derived from at least two

different alpha-olefins,

of the random copolymers derived from ethylene and

at least one other alpha-olefin,

the copolymer derived from at least one alpha-olefin and at least one alkanediene,

the copolymer derived from at least one alpha-olefin and at least one vinyl-aromatic monomer,

- The homo- or copolymers derived from at least one alpha-olefin, with ethylenically unsaturated carboxylic acids and / or their anhydrides and / or esters thereof, with

ethylenically unsaturated epoxides are grafted with ethylenically unsaturated silicon compounds, with ethylenically unsaturated amines and with combinations of two or more thereof,

the copolymer derived from at least one alpha-olefin and at least one ethylenically unsaturated carboxylic acid and / or its anhydride and / or its esters,

the copolymer derived from at least one alpha-olefin and at least one ethylenically unsaturated one

epoxy compound,

Silicon compound

the copolymer derived from at least one alpha-olefin and at least one ethylenically unsaturated amine, and

the copolymer derived from at least one alpha-olefin and at least one vinyl ester of a saturated one

aliphatic carboxylic acid, which optionally one

Has hydroxyl group. The cycloolefin polymers used according to the invention as component A) are polymers known per se. These are produced by ring-holding or by ring-opening polymerization. The COP are derived from cyclic olefins. These are preferably copolymerized with non-cyclic olefins.

Cyclic olefins used to prepare COPs used according to the invention are monomers of the following formulas I to VI

wherein R-ι, R ₂₎ R3, R4, R5, R6. R7 and Rs are the same or different and are a hydrogen atom or a Ci-Ce-alkyl radical, wherein the same radicals in the various formulas may have a different meaning. In the context of this description, C 1 -C 6 -alkyl radicals are to be understood as meaning straight-chain or branched saturated aliphatic hydrocarbon radicals having 1-8 C atoms, such as methyl, ethyl, n-propyl, isopropyl, n-butyl, sec-butyl, tert-butyl, n-pentyl, n-hexyl, 2-ethylhexyl, n-heptyl or n-octyl. The preferred cyclic olefin radicals of the formulas I to VI can be polymerized individually or in combination with one another, or very particularly preferably together with the cyclic olefin radicals of the formula VII and / or with the non-cyclic olefin radicals of the formula VIII

wherein n is an integer from 2 to 10 and

R19, Rio, RH and R12 are the same or different and represent a hydrogen atom or a Ci-Cs-alkyl radical.

Preferred comonomers are propylene and especially ethylene. In particular, copolymers of polycyclic olefins of the formulas I or III and the acyclic olefins of the formula VIII are used.

Particularly preferred cycloolefins are norbornene and tetracyclododecene, which may be substituted by C 1 -C 6 -alkyl, of which ethylene-norbornene copolymers are of particular importance, in particular the cycloolefin copolymers prepared to obtain the ring structure.

Of the monocyclic olefins of formula VII, cyclopentene which may be substituted is preferred. Polycyclic olefins, monocyclic olefins and open-chain olefins are also mixtures of second or more olefins of the respective type. That is, as component A) Cyclolefin homopolymers and copolymers, such as bi-, ter- and

Multipolymers, are used.

The cycloolefin polymerizations occurring under opening of the double bond can be e.g. with catalyst systems according to EP-A-0 407870 or EP-A-0 203 799 as well as with a classical Ziegler catalyst system (see for example DD-A-222 317).

Cycloolefin homo- and copolymers derived from structural units

Containing monomers of formulas I to VI or VII, are preferably prepared by means of a homogeneous catalyst. This preferably consists of a metallocene whose central atom is a metal from the group of titanium, zirconium, hafnium, vanadium, niobium and tantalum, which forms a sandwich structure with two bridged mononuclear or polynuclear ligands, and an aluminoxane. This reaction is known and described for example in EP 0 566 988 A1 and the documents mentioned therein.

Are preferred as component A) cycloolefin polymers with a

Viscosity number of greater than 20 cm ³ / g (measured in decalin at 135 ° C in a concentration of 0.1 g / 100 ml) and used with a glass transition temperature (T _g ) between 140 and 240 ° C.

For cycloolefin copolymers derived from norbornene and ethylene, it is known that the glass transition temperature can be adjusted by selecting the ratio of norbornene to ethylene. High proportions of norbornene units in the copolymer mean high glass transition temperatures. The same applies to copolymers derived from other cyclic olefins and non-cyclic olefins. For the purposes of the present description, glass transition temperature is to be understood as the size determined according to ISO 11373 by the differential scanning calorimetry (DSC) method, the heating rate being 10 K / minute. The compositions may also comprise, as component A), COPs which have been polymerized under ring opening in the presence of, for example, tungsten-, molybdenum-, rhodium- or rhenium-containing catalysts. The resulting cycloolefin polymers have double bonds by

Hydrogenation can be removed (see for example US-A-3,557,072 and US-A-4,178,424).

Preferably, cycloolefin copolymers prepared by ring copolymerization in the presence of metallocene catalysts (hereinafter referred to as "COC") are used as component A. Under these conditions, the cyclic structure of the cycloolefin monomers is retained and incorporated into the resulting polymer chain.

As an alternative or in addition to the above-mentioned COC having the cyclic structure of the olefin monomers obtained, ring-opening copolymerization-produced types or hydrogenated types derived therefrom can be used.

In addition to the essentially linear cycloolefin copolymers or the types produced by ring-opening copolymerization or the hydrogenated types derived therefrom, it is also possible to use modified types which have subsequently been grafted with ethylenically unsaturated, preferably functionalized monomers, such as unsaturated carboxylic acids.

As component B), in the compositions according to the invention a polymer derived from one or more alpha-olefins, which

if appropriate, further structural units derived from at least one alkanediene and / or from at least one vinylaromatic monomer are used. The alpha-olefins are non-cyclic mono- ethylenically unsaturated hydrocarbons with the

Double bond in alpha position. Examples of alpha-olefins are ethylene, propylene, butene-1, hexene-1, 4-methyl-pentene-1 or isobutylene. It is possible to use homopolymers or copolymers based on alpha-olefins. These are possibly with

Alkandien modified, for example with isoprene or butadiene, and / or with vinyl aromatic, for example with styrene. In addition, it is also possible to use elastomeric polyolefin copolymers and terpolymers.

Preferred polyolefins are derived from aliphatic 1-olefins having 2 to 8 carbon atoms, e.g. of ethylene, propylene, butene-1, hexene-1, 4-methyl-pentene-1 and octene-1 and combinations of two or more of these

Monomers.

The polyolefins of component B) are linear or branched types. The sequence of different monomer units in these polyolefins may be random or in the form of blocks. The individual monomer units can be arranged sterically differently,

for example, isotactic, syndiotactic or atactic. Component B) is preferably polyolefin homo- or copolymers derived from at least one alpha-olefin having 1-8 C atoms, which are optionally modified with isoprene, butadiene and / or styrene.

Particularly preferred components B) are polyolefin homopolymers derived from ethylene or propylene or polyolefin copolymers derived from ethylene and / or propylene with a proportion of up to 10% by weight of higher alpha-olefins having 4-8 C atoms. Among copolymers are in this

Associated to understand polymers that are derived from three or more different monomers.

Most preferably used components B) are high density polyethylene (HDPE), medium density (MDPE) and low density polyethylene (LDPE). These polyethylenes are prepared by the low or high pressure process with appropriate catalysts and are characterized by low Density in comparison with other plastics (<0.96 g / cm ³ ), due to high

Toughness and elongation at break, by very good electrical and dielectric properties, by very good chemical resistance, and depending on the type by high resistance to stress cracking and good machinability.

The polyethylene molecules contain branches. The degree of branching of the molecular chains and the length of the side chains substantially influence the properties of the polyethylene. The HDPE and MDPE types are few and branched only with short side chains.

Polyethylene crystallizes on cooling from the melt. In this case, the long chains of molecules arrange themselves in partial areas and form very small ones

Crystallites, which together with amorphous zones are connected to superstructures, the so-called spherulites. The shorter the chains are and the lower the degree of branching, the better the crystallization. The crystalline portion has a higher density than the amorphous portion. Therefore, different densities are obtained, depending on the crystalline fraction. This

The degree of crystallization is between 35% and 80% depending on the polyethylene type.

For high density polyethylene (HDPE) 60% to 80% degree of crystallization is achieved at densities between 0.940 g / cm ³ and 0.97 g / cm ³ . For medium density polyethylene (MDPE) 50% to 60% degree of crystallization is achieved at 0.930 g / cm ₃ to 0.940 g / cm ³ density. For low density polyethylene (LDPE), 40% to 50% crystallinity is achieved at densities between 0.915 g / cm ³ and 0.935 g / cm ³ . This type is highly branched polymer chains which result in a low density.

In addition, one knows linear linear low density polyethylene (LLDPE). Its polymer molecule has only short branches. These branches are prepared by copolymerization of ethylene and higher alpha-olefins such as butene, hexene or octene. The degree of crystallinity of this type is 10 to 50% and the density is in the range of 0.87 g / cm ³ to 0.940 g / cm ³ . Other types of polyethylene are characterized by their high molecular weight. These are high-molecular-weight polyethylene (HMWPE) or ultra-high-molecular-weight polyethylene (UHMWPE). The polymer chains of these types are longer than those of HDPE, MDPE, LDPE or LLDPE. The mean molecular weight of HMWPE is 500-1000 kg / mol. The average molecular weight of UHMWPE is higher and can reach values up to 6000 kg / mol.

The properties of polyethylene are mainly determined by density, molecular weight and molecular weight distribution. So z. B. the impact and

Notched impact strength, tear strength, elongation at break and resistance to stress cracking with the molar mass. Densely distributed HDPE with a low low molecular weight fraction is impact resistant, even at low temperature, than widely distributed within the same ranges for melt index and

Viscosity. Broadly distributed types are easier to process.

The higher the molecular weight of polyethylene, the more difficult it becomes to make fabric compositions by means of an extruder. While a

Polyethylene having a mean mass of about 4.9 × 10 ⁵ g / mol can just be used as the only polyethylene component are, for example

Polyethylene types between 0.5 to 8 x 10 ⁶ g / mol only in alloyed form, ie as a composition of the invention with correspondingly increasing content of component A) and C) by extrusion or injection molding process. In order to optimize the processability of such compositions while substantially maintaining the mechanical properties, HMWPE and / or UHMWPE can also be used as part of component B) in the novel processes in addition to the high molecular weight polyethylene

Compositions are mixed.

Polypropylene is an isotactic, syndiotactic or atactic polypropylene produced using stereospecific catalysts. Particularly preferred is the isotactic polypropylene, in which all methyl groups are arranged on one side of the zigzag imaginary molecular chain, used in the compositions of the invention as component B). When cooling from the melt, the regular structure of the isotactic polypropylene promotes the formation of crystalline regions. The

However, chain molecules are rarely incorporated in full length in a crystallite, since they also contain non-isotactic and thus non-crystallizable fractions. In addition, arise amorphous areas through the

Entanglements of the chains in the melt, especially at high

Polymerization. The crystalline fraction depends on the manufacturing conditions of the molded parts and is 50% to 70%. The semi-crystalline structure causes due to the high secondary forces in the crystallite some strength and stiffness; while the disordered regions with the higher mobility of their chain segments above the glass transition temperature give flexibility and toughness. The density of polypropylene is very low and is between 0.895 g / cm ³ and 0.92 g / cm ³ . Polypropylene moldings are characterized by higher rigidity, hardness and strength in comparison with moldings made of polyethylenes. Polypropylene has a glass transition temperature of 0 to -10 ° C. The crystallite melting range is 160 to 165 ° C. These temperatures can be modified by copolymerization; the skilled person are the

Measures known.

Preferred components B) are HDPE, MDPE, LDPE, LLDPE, HMWPE, UHMWPE, propylene homopolymers, propylene copolymers having 1-10% by weight of structural units, those of 1-alkenes having 4-8 C atoms and / or styrene and / or butadiene derived propylene-ethylene copolymers with 10 to 90 wt.% Of propylene-derived structural units and combinations of two or more thereof. The compositions of the invention are characterized by the presence of a selected component C). These may be block copolymers derived from at least two different alpha olefins. Examples are block copolymers with polypropylene and polyethylene blocks. The block copolymer may consist of two blocks or more than two blocks, which in turn are derived from two or more alpha olefins. The ratio of the blocks can vary widely, for example, one block may have a content of 20 to 80 wt.% Of the total mass of the block copolymer and a second block may have a content of 80 to 20 wt.%.

Component C) may also be random copolymers derived from ethylene and at least one other alpha-olefin.

Examples of copolymers of this type are copolymers derived from ethylene and from one or more 1-alkenes having 3-8 C atoms, in particular from ethylene and propylene, 1-butene, 1-pentene, 1-hexene, 1-heptene or 1-hexene. Octene-derived random copolymers. When providing the mixtures according to the invention, it must be ensured that components B) and C) differ.

Component C) may also be copolymers derived from at least one alpha-olefin and at least one alkanediene. These may be random copolymers or block copolymers. Examples of copolymers of this type are copolymers derived from ethylene and butadiene, from propylene and butadiene, from ethylene, propylene and butadiene, from ethylene and isoprene, from propylene and isoprene or from ethylene, propylene and isoprene.

Component C) may also be copolymers derived from at least one alpha-olefin and at least one vinyl aromatic monomer. These may be random copolymers or block copolymers. Examples of copolymers of this type are copolymers derived from ethylene and styrene, from propylene and styrene or from ethylene, propylene and styrene.

Component C) may also be homopolymers or copolymers derived from at least one alpha-olefin and containing ethylenically unsaturated carboxylic acids and / or their anhydrides and / or their esters, with ethylenically unsaturated epoxides, with ethylenically unsaturated Silicon compounds, with ethylenically unsaturated amines and with

Combinations of two or more of them are grafted. In the polymer backbone derived from alpha olefins, in the case of

Copolymers to statistical copolymers or act block copolymers. Examples of polymers which form the backbone of these graft polymers are polyethylene, polypropylene or polyethylene-polypropylene. These homo- or copolymers are grafted with selected ethylenically unsaturated monomers or with combinations thereof. Examples of ethylenically unsaturated carboxylic acids are itaconic acid, fumaric acid, acrylic acid, methacrylic acid and especially maleic acid; Examples of anhydrides of ethylenic

unsaturated carboxylic acids are the anhydrides of the above

Carboxylic acids; Examples of esters of ethylenically unsaturated carboxylic acids are the alkyl esters, for example, derived from CiC _ö alkanols, the aforementioned carboxylic acids; Examples of ethylenically unsaturated epoxides are gyricidyl esters of ethylenically unsaturated carboxylic acids, for example glycidyl methacrylate;

Examples of ethylenically unsaturated silicon compounds are esters of ethylenically unsaturated carboxylic acids with trialkoxysilylalkanols,

Dialkoxyalkylsilylalkanols or alkoxysilyldialkylsilylalkanols, e.g.

Trialkoxysilylpropyl- (meth) acrylate; Examples of ethylenically unsaturated amines are vinylamine or allylamine.

Particularly preferred graft copolymers of this type are ethylene homopolymers, propylene homopolymers or ethylene-propylene copolymers, each with maleic acid, with acrylic acid, with methacrylic acid or with

Combinations of two or more of them have been grafted.

Component C) may also be copolymers derived from at least one alpha-olefin and at least one ethylenically unsaturated carboxylic acid and / or its anhydride and / or its esters. Examples of alpha-olefins used to prepare these copolymers

used are ethylene, propylene or mixtures thereof. Examples of ethylenically unsaturated carboxylic acids are itaconic acid, fumaric acid,

Acrylic acid, methacrylic acid and especially maleic acid; Examples of anhydrides of ethylenically unsaturated carboxylic acids are the anhydrides of above-mentioned carboxylic acids; Examples of esters of ethylenic

unsaturated carboxylic acids are the alkyl esters, e.g. derived from C1-C6 alkanols, the abovementioned carboxylic acids. The copolymers may be random copolymers or block copolymers.

Component C) may also be copolymers which are derived from at least one alpha-olefin and at least one ethylenically unsaturated epoxide compound. Examples of alpha-olefins used for

Preparation of these copolymers are used, are ethylene, propylene or mixtures thereof. Examples of ethylenically unsaturated

Epoxide compounds are glycidyl esters of ethylenically unsaturated

Carboxylic acids, e.g. Glycidyl. The copolymers may be random copolymers or block copolymers.

Epoxide compounds are glycidyl esters of ethylenically unsaturated

Component C) may also be copolymers derived from at least one alpha-olefin and at least one ethylenically unsaturated silicon compound. Examples of alpha-olefins used to prepare these copolymers are ethylene, propylene or mixtures thereof. Examples of ethylenically unsaturated silicon compounds are esters of ethylenically unsaturated carboxylic acids with trialkoxysilylalkanols, dialkoxyalkylsilylalkanols or alkoxysilyldialkylsilylalkanols, e.g. Trialkoxysilylpropyl- (meth) acrylate. Both

Copolymers may be random copolymers or

Act block copolymers. Component C) may also be copolymers derived from at least one alpha-olefin and at least one ethylenically unsaturated amine. Examples of alpha-olefins used to prepare these copolymers are ethylene, propylene or mixtures thereof. Examples of ethylenically unsaturated amines are vinylamine and allylamine. The copolymers may be random copolymers or

Act block copolymers.

Component C) may also be copolymers which are derived from at least one alpha-olefin and at least one vinyl ester of a saturated aliphatic carboxylic acid which optionally has a hydroxyl group. Examples of alpha-olefins used to prepare these copolymers are ethylene, propylene or mixtures thereof. Examples of vinyl esters of a saturated aliphatic carboxylic acid are vinyl esters of C 1 -C 6 -alkanecarboxylic acids, in particular vinyl acetate. The copolymers may be random copolymers or block copolymers.

The polymers to be selected as components B) and C) in individual cases are different compounds. Compound C) is used as a phase mediator between the phases consisting of components A) and B). It is recommended that when selecting component C) it should be noted that it has a certain similarity to components A) and B). If e.g. used as component B) is a polyethylene or a polypropylene or a copolymer with units derived from ethylene or from propylene, so in component C) are advantageously also derived from ethylene or propylene derived units. If e.g. used as component A) is a COC with ethylene or propylene as Cokomponente, so in component C) are advantageously also derived from ethylene or propylene derived units.

The copolymers of component C) can be referred to according to the present invention as a phase mediator since they are at the

Interface of the polymer phases consisting of components A) and B) order to reduce the interfacial tension, increase the adhesion between the phases and control the size of the particles (disperse phase) in the composition of matter. A phase mediation of

The greater the structural similarities of the molecules of the phase mediator with the polymers to be imparted, the more successful polymers are. Thus, when applied to the phase mediation of COP and polyolefins, it is preferable to use components C) which contain, as predominantly incorporated monomer component or components, those which are also included as monomer components or components in the polymers to be compatibilized.

The compositions according to the invention with component C) as phase mediators usually have drastically better mechanical properties than compositions without component C). In addition, they can stabilize the phase structures by preventing coalescence.

The proportion of component A) in the compositions according to the invention is preferably 4.5 to 95% by weight, particularly preferably 19 to 80% by weight and very particularly preferably 23 to 75% by weight.

The proportion of component B) in the compositions according to the invention is preferably 4.5 to 95% by weight, particularly preferably 19 to 80% by weight and very particularly preferably 23 to 75% by weight. The proportion of component C) in the compositions according to the invention is preferably 0.5 to 20% by weight, more preferably 1 to 10% by weight and most preferably 2 to 6% by weight.

In this case, the proportions of components A), B) and C) add up to 100% by weight.

The compositions according to the invention may contain one or more components A), one or more components B), and one or more components C). The compositions mentioned are prepared and processed by standard methods known for thermoplastics, such as. B. by

Kneading, pressing, extrusion or injection molding.

The novel compositions may contain additives, for example thermal stabilizers, UV stabilizers, antistatic agents,

Flame retardants, plasticizers, lubricants and lubricants, pigments,

Dyes, optical brighteners, processing aids, inorganic and organic fillers, i. in particular also reinforcing materials, such as glass, carbon or high modulus fibers, or combinations of two or more of these additives.

The proportion of additives in the composition according to the invention is usually between 0 and 25% by weight, preferably between 0.1 and 20% by weight and more preferably between 0.5 and 10% by weight, based on the total mass of the Composition.

The inventive compositions can be particularly advantageous for the production of moldings after the molding, injection molding or

Extrusion processes are processed. Examples of moldings are plates, fibers, rods, films and tubes.

These moldings are also the subject of the present invention.

These moldings are characterized by the above advantageous

Characteristics, in particular by the high heat resistance, so that these for sterilization or for use at temperatures to e.g. suitable for 180 ° C. The invention also relates to the use of those described above

Shaped body or the molded body produced from the compositions described above in medicine, medical technology, food technology, electronics, electrical engineering, container and apparatus construction, vehicle construction, in the vulcanization of elastomeric articles and as packaging materials. The moldings described above are used, for example, as heat-resistant films, as thermoforming films, as temperature- and chemical-resistant containers or parts thereof, for example as bottles or as caps. These parts are characterized by the ability to steam sterilize and can therefore preferably be used in the field of medicine, medical technology and food technology.

The moldings described above are for example as

Isolation films, as capacitor films and as release films in battery technology used and can thus be in the field of electronics and the

Use electrical engineering.

The moldings described above are characterized by a high

Temperature resistance, good insulation properties and high

Water vapor barrier effect and are used for example as films for solar applications.

In apparatus and container construction, the moldings of the invention can be used for the production of temperature- and chemical-resistant containers and of parts and fillings for apparatus engineering, such as inserts for scrubbers or for columns (column bottoms).

In vehicle construction, the moldings of the invention can be used for the production of temperature-resistant films or temperature-resistant parts for the vehicle interior. These films or parts are characterized by their low specific gravity and are suitable for weight loss. In the vulcanization of elastomeric articles, the moldings according to the invention can be used, for example, as cores in the vulcanization of elastomer moldings, such as hoses. The following examples illustrate the invention. A limitation is not intended thereby.

General working instructions

The polymeric components described in Table 1 below were first dried (100 ° C., 24 h, vacuum) and then in the following proportions by weight in a 30 mm

Twin screw extruder (Leistritz) under protective gas (N ₂ ) extruded. The resulting granulated polymer compositions were dried (100 ° C, 24 h, vacuum) and then sprayed into moldings. The obtained specimens were examined for their physical properties. Details are given in Table 2. Table 1: Composition of the polymer compositions tested

Component A is TOPAS 6013, a norbornene-ethylene copolymer prepared by ring-retaining copolymerization with a proportion of ethylene units of 50 mol%; _Tg (DSC) 140 ° C

²⁾ Component B is HOSTACOM ^® PPR 1042 12, a polypropylene copolymer

³⁾ Component C is ENGAGE ^® 8452; a random polyolefin elastomer derived from ethylene and 1-octene having a density of 0.875 g / cm ³ Table 2: Test results

) determined to ISO 1133 at 230 ° C with 2.16 kg

²⁾ determined according to ISO 75-1 / 2

³⁾ Charpy impact resistance, notched; determined to ISO 179 / 1eA at 23 ° C) Charpy Impact, notched; determined according to ISO 179 / 1eA at -30 ° C

⁵⁾ Charpy Impact, not notched; determined according to ISO 179 / 1eA at 23 ° C

⁶⁾ Charpy Impact, not notched; determined according to ISO 179 / 1eA at -30 ° C

⁷⁾ determined according to ISO 527

⁸⁾ determined according to ISO 527

Claims

claims

1. Containing composition

B) at least one polymer derived from one or more alpha-olefins, optionally containing further structural units derived from at least one alkanediene and / or from at least one vinylaromatic monomer, and

C) at least one of the compatibility of components A) and B)

improving component other than component B) selected from the group

the block copolymer derived from at least two different alpha olefins,

the random copolymer derived from ethylene and at least one other alpha-olefin,

the copolymer derived from at least one alpha-olefin and at least one ethylenically unsaturated epoxide compound,

the copolymer derived from at least one alpha-olefin and at least one ethylenically unsaturated one Silicon compound

aliphatic carboxylic acid, which optionally one

Has hydroxyl group.

2. Composition according to claim 1, characterized in that

wherein R ₂ , R ₃ , R ₄ , R 5, Re, R 7 and Re are the same or different and represent a hydrogen atom or a C 1 -C 8 -alkyl radical, wherein identical radicals in the different formulas may have a different meaning.

3. The composition according to claim 2, characterized in that component A) is derived from monomers of the formulas I to VI and of cyclic olefin radicals of the formula VII and / or non-cyclic Olefin radicals of the formula VIII

wherein n is an integer from 2 to 10 and

R-19, Rio. R11 and R12 are the same or different and a

Represent hydrogen atom or a d-Ca-alkyl radical.

4. The composition according to claim 3, characterized in that component A) of polycyclic olefins of the formulas I or III and of acyclic olefins of the formula VIII, in particular of

Norbornene or tetracyclododecene and of ethylene or propylene.

5. Composition according to one of claims 1 to 4, characterized

characterized in that component A) is a cycloolefin polymer having a viscosity number of greater than 20 cm ³ / g, measured in decalin at 135 ° C in a concentration of 0.1 g / 100 ml, and having a glass transition temperature T _g between 140 and 240 ° C is.

6. Composition according to one of claims 1 to 5, characterized

characterized in that component B) is a polyolefin which is derived of aliphatic 1-olefins having 2 to 8 C atoms, in particular of ethylene, propylene, butene-1, hexene-1, 4-methyl-1-pentene and octene-1 and combinations of two or more of these monomers.

A composition according to claim 6, characterized in that component B) is selected from the group consisting of HDPE, MDPE, LDPE, LLDPE, HMWPE, UHMWPE, propylene homopolymers, propylene copolymers having 1-10 wt .-% of structural units of 1-alkenes with 4-8 C atoms and / or styrene and / or butadiene are derived, propylene ethylene copolymers having 10 to 90 wt.% Of propylene-derived structural units and combinations of two or more thereof.

A composition according to any one of claims 1 to 7, characterized

characterized in that component C) is an ethylene homopolymer,

Propylene homopolymer or ethylene-propylene copolymer, each with maleic acid, with acrylic acid, with methacrylic acid or with

Combinations of two or more thereof has been grafted, or that component C) is a random copolymer derived from ethylene and another alpha-olefin.

A composition according to any one of claims 1 to 8, characterized

in that the proportion of component A) is 4.5 to 95% by weight, the proportion of component B) is 4.5 to 95% by weight and the proportion of component C) is 0.5 to 20% by weight. -%, wherein the proportions of components A), B) and C) add up to 100 wt .-%.

A composition according to any one of claims 1 to 9, characterized

characterized in that it contains additives, preferably thermal stabilizers, UV stabilizers, antistatic agents, flame retardants,

Plasticizers, lubricants, pigments, dyes, optical brighteners, processing aids, inorganic and organic

Fillers, as well as reinforcing materials such as glass, carbon or

High modulus fibers and combinations of two or more thereof, which preferably in a total amount of 0.1 to 20 wt.%, Based on the total mass of the composition, are present.

11. Shaped body produced from a composition according to one of claims 1 to 10.

12. Use of the compositions of any of

Claims 1 to 10 molded body in medicine, medical technology, food technology, electronics, electrical engineering, container and

Apparatus construction, vehicle construction, in the vulcanization of elastomeric articles and as packaging materials.

13. Use according to claim 12, characterized in that in the molded body to a temperature-resistant films to a thermoforming sheet to a temperature and chemical resistant container or a part thereof, an insulating film to a capacitor film to a release film in the Battery technology to make a film for applications in solar technology, to use for scrubbers or for columns, to a part for a vehicle interior or around a cores for the

Vulcanization of elastomeric moldings is.