WO1997003108A1 - Polyether amine modification of polypropylene - Google Patents
Polyether amine modification of polypropylene Download PDFInfo
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- WO1997003108A1 WO1997003108A1 PCT/US1996/011389 US9611389W WO9703108A1 WO 1997003108 A1 WO1997003108 A1 WO 1997003108A1 US 9611389 W US9611389 W US 9611389W WO 9703108 A1 WO9703108 A1 WO 9703108A1
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- polypropylene
- oxide units
- polyether monoamine
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- polyether
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/34—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives
- C08G65/48—Polymers modified by chemical after-treatment
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- C08F8/00—Chemical modification by after-treatment
- C08F8/30—Introducing nitrogen atoms or nitrogen-containing groups
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/32—Polymers modified by chemical after-treatment
- C08G65/321—Polymers modified by chemical after-treatment with inorganic compounds
- C08G65/325—Polymers modified by chemical after-treatment with inorganic compounds containing nitrogen
- C08G65/3255—Ammonia
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/32—Polymers modified by chemical after-treatment
- C08G65/329—Polymers modified by chemical after-treatment with organic compounds
- C08G65/333—Polymers modified by chemical after-treatment with organic compounds containing nitrogen
- C08G65/33303—Polymers modified by chemical after-treatment with organic compounds containing nitrogen containing amino group
- C08G65/33306—Polymers modified by chemical after-treatment with organic compounds containing nitrogen containing amino group acyclic
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G81/00—Macromolecular compounds obtained by interreacting polymers in the absence of monomers, e.g. block polymers
- C08G81/02—Macromolecular compounds obtained by interreacting polymers in the absence of monomers, e.g. block polymers at least one of the polymers being obtained by reactions involving only carbon-to-carbon unsaturated bonds
- C08G81/024—Block or graft polymers containing sequences of polymers of C08C or C08F and of polymers of C08G
- C08G81/025—Block or graft polymers containing sequences of polymers of C08C or C08F and of polymers of C08G containing polyether sequences
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- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
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- C08L71/00—Compositions of polyethers obtained by reactions forming an ether link in the main chain; Compositions of derivatives of such polymers
- C08L71/02—Polyalkylene oxides
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- C08L2203/00—Applications
- C08L2203/12—Applications used for fibers
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- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L51/06—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
Definitions
- This invention relates to a novel olefin polymer composed ofthe reaction of a functionalized polypropylene and a polyether amine.
- This invention also relates to thermoplastic resin blends containing the novel olefin polymer and polypropylene.
- This invention also relates to polyetheramines.
- Thermoplastic resin compositions containing polypropylene are well known in the art (e.g. U.S. Patent 5,208,081).
- U.S. Patent 5,179,164 describes a polypropylene/polyamide composition suitable for producing moldings.
- the patent describes an ethylene copolymer useful as an adhesion promoter.
- the patent indicates that maleic acid is a suitable monomer for preparing the ethylene copolymer.
- European patent application 0 367 832 discloses a resin composition containing an olefinic polymer having acid anhydride groups. As in U.S. Patent 5,179,164, the novel compound is blended with a polyamide.
- Japanese patent 46003838 reveals a maleic anhydride modified polypropylene composition containing triethylamine and polyethylene glycol nonylphenyl ether.
- Japanese patent 60195120 reveals a molding containing polyethylene, maleic anhydride-grafted polyethylene, and diethylenetriamine.
- the instant invention uses the maleic anhydride in conjunction with polyetheramines which produce unexpected improvements in resin properties.
- This invention is a compound comprising a blend of polypropylene ("PP") with the reaction product of a functionalized polypropylene and polyetheramine in which the polyether amine is grafted onto the functionalized polypropylene in a customary mixing apparatus.
- grafted it is meant that the amine functionality ofthe polyetheramine reacts with the anhydride component ofthe functionalized polypropylene to form a reaction product, for instance, a primary amine will react with a maleic anhydride to form an imide.
- This invention is also a process for producing the reaction product ofthe functionalized polypropylene and the polyether amine by melting with polypropylene in a customary mixing apparatus.
- the compound blend of this invention may be prepared by reactive extrusion by feeding a polyetheramine, a functionalized polypropylene and polypropylene into an extruder at temperatures such that the polyetheramine reacts with the functionalized polypropylene to form a reaction product containing, for example, an imide group.
- This invention is also a polyether monoamine which contains from about 36 to about 44 ethylene oxide units and fiom about 1 to about 6 propylene oxide units.
- ethylene oxide unit and propylene oxide unit it is meant the residue of ethylene oxide and propylene oxide which has been inco ⁇ orated into the polyether monoamine, i.e., units corresponding to -CH 2 CH 2 O- and -CH 2 CHCH 3 O-, respectively.
- This invention further relates to a process for making a blend containing polypropylene and the reaction product of a functionalized polypropylene and a polyether monoamine by melting polypropylene polyether monoamine and functionalized polypropylene to form the blend.
- This invention is yet further directed to a blend containing polypropylene and the reaction product of polyether monoamine and functionalized polypropylene.
- compositions ofthe present invention are useful for preparing molded automotive body parts, including directly paintable thermoplastic polyolefins ("TPO") based automotive body parts.
- TPO thermoplastic polyolefins
- compositions are useful for making molded parts that contain filler such as glass. It is yet further contemplated that the compositions ofthe present invention may be useful in the preparation of films, including printable films; fibers including dyable and non-woven PP fibers; and in packaging materials for electronics components such as semiconductor chips, wherein the packaging materials may provide electrostatic dissipation which would thereby protect the chips from damage. It is yet further contemplated that the composition of the present invention may be useful to improve the barrier properties for polyethylene and to modify polyethylene as a tie layer in multilayer films. It is further contemplated that the composition ofthe present invention may be useful as an additive as polypropylene based reinforcement fibers for concrete. DESCRIPTION OF THE PREFERRED EMBODIMENT
- the blend of polypropylene with the reaction product of maleated polypropylene and polyether amine shows improved paintability, improved impact resistance, and excellent mold flowability over blends of polypropylene and maleated polypropylene.
- Plastics are increasingly being employed in the production of motor vehicles.
- Impact-modified PP has proved to be particularly suitable for applications such as bumpers, spoilers, fenders, side bump strips and the like. Therefore, a thermoplastic resin blend having the improved properties ofthe instant invention has significant potential commercial usefulness.
- These resin compositions are useful as engineering plastics which are materials for structural members in the fields of transport machines (automobiles, ships and the like), apparatus, tools, electronic appliances, electric appliances, sporting goods, leisure goods and the like; and for connectors, tubes and the like.
- Suitable polypropylenes are known from polymer chemistry, are described for example in Kunststoff-Handbuch, volume IV, Polyolefins, edited by R. Vieweg, A. Schley and A. Schwarz. Carol Hanser Veriag, Kunststoff, 1969, and are commercially available, so that no details need be given.
- Functionalized PP is PP onto which a monomer has been grafted.
- the usual method of such grafting is by free radical reaction.
- the maleated polypropylene is not a copolymer of maleic anhydride or equivalent thereof, and propylene, such that the maleic anhydride moiety is predominantly in the backbone ofthe copolymer.
- Suitable monomers for preparing functionalized polypropylene are, for example, olefinically unsaturated monocarboxylic acids of less than 12 carbon atoms, e.g., acrylic acid or methacrylic acid, and the corresponding tert-butyl esters, e.g., tert-butyl (meth)acrylate, olefinically unsaturated dicarboxylic acids of less than 12 carbon atoms, e.g., fumaric acid, maleic acid, and itaconic acid and the corresponding mono-and/or di-tert-butyl esters, e.g., mono- or di-tert-butyl fumarate and mono- or di-tert-butyl maleate, olefinically unsaturated dicarboxylic anhydrides of less than 12 carbon atoms, e.g., maleic anhydride, sulfo- or sulfonyl- containing olefinically unsatur
- the functionalized polypropylene used in the practice of this invention may have a wide variety of number average molecular weights.
- the functionalized polypropylene When the functionalized polypropylene is used to make paintable articles, such as automotive body parts, the functionalized polypropylene preferably has a number average molecular weight greater than about 3,000 and preferably less than about 20,000, more preferably less than about 10,000.
- a representative example of a maleated polypropylene that is currently commercially available is under the name EPOLENE E-43, available from Eastman Chemical.
- EPOLENE E-43 available from Eastman Chemical.
- a higher average number molecular weight greater than about 40,000 and less than about 60,000 may be employed.
- glass filler and polypropylene are not miscible, and their combination commonly leads to voids in the resulting compositions.
- the relatively higher molecular weight materials "wet" the glass to make the glass filler particles and polypropylene more combinable to thereby decrease the amount of voids in the resulting compositions.
- Suitable anhydride functionalized polypropylene include the following
- PP polypropylene.
- the polypropylene can be bonded to one or two monomers when the polypropylene is linear, while more than two monomers might be included when the propylene is branched. Typically, one or two monomers are present.
- Suitable polyetheramines include monamines, diamines and triamines, having a molecular weight of from about 150 to about 12,000. Preferred polyetheramines have a molecular weight of from about 1,000 to about 3,000.
- Suitable monamines shown in the Glossary, include JEFFAMINE M-l 000, JEFFAMINE M-2070, and JEFFAMINE M-2005.
- Suitable diamines include JEFFAMINE ED-6000,
- JEFFAMINE ED-4000 JEFFAMINE ED-2001.
- JEFFAMINE D-2000 JEFFAMINE D-4000, JEFFAMINE ED-900, JEFFAMINE ED-600, and JEFFAMINE D-400.
- Suitable triamines include JEFFAMINE ET-3000, JEFFAMINE T-3000 and JEFFAMINE T-5000.
- Preferred polyetheramines include JEFFAMINE M-2070 and JEFFAMINE ED-2001. More preferred polyetheramines ofthe present invention have a molecular weight in the range from about 1500 to about 2000. In the practice of this invention, monoamines and diamines are preferred.
- Suitable polyether blocks for the polyetheramine include polyethylene glycol, polypropylene glycol, copolymers of polyethylene glycol and polypropylene glycol, poly(l,2-butylene glycol), and poly(tetr- ⁇ methylene glycol).
- the glycols can be aminated using well known methods to produce the polyetheramines. Generally, the glycols are prepared from ethylene oxide, propylene oxide or combination thereof using well known methods such as by a methoxy or hydroxy initiated reaction. When both ethylene oxide and propylene oxide are used, the oxides can be reacted simultaneously when a random polyether is desired, or reacted sequentially when a block polyether is desired.
- An especially preferred polyetheramine is a polyether monoamine which contains from about 36 to about 44 ethylene oxide units and from about 1 to about 6 propylene oxide units. In one embodiment, such polyether monoamines have a molecular weight of about 2000 to about 2200. In another embodiment, the polyether monoamine contains about 40 to about 43 ethylene oxide units and from about 2.4 to about 3 propylene oxide units. Certain polyether monoamines are of formula:
- n is about 1 to about 6, including polyether monoamines wherein m is about 40 to about 43 and n is about 2.4 to about 3, as well as compounds ofthe formula having a molecular weight of about 2000 to about 2200.
- the polyetheramines are prepared from ethylene oxide, propylene oxide or combinations thereof.
- the amount of ethylene oxide on a molar basis is greater than about 50 percent ofthe polyetheramine, preferably greater than about 75 percent and more preferably greater than about 90 percent.
- polyols and amines including polyalkylene polyamines and alkanol amines or any amine that is not a polyetheramine as disclosed herein may be absent from the composition.
- functional groups other than ether linkages and amine groups may be absent from the polyetheramine.
- the polyether amines used in the practice of this invention can be prepared using well known amination techniques such as described in U.S. 3,654,370; U.S. 4,152,353; U.S. 4,618,717; U.S. 4,766,245; U.S. 4,960,942; U.S. 4,973,761; U.S. 5,003,107; U.S. 5,352,835; U.S. 5,422,042; and U.S. 5,457,147.
- the polyether amines are made by aminating a polyol, such as a polyether polyol with ammonia in the presence of a catalyst such as a nickel containing catalyst such as a Ni/Cu/Cr catalyst.
- the mixing ofthe functionalized PP and polyetheramine and optionally also PP may be carried out in a customary mixing apparatus including batch mixers, continuous mixers, kneaders, and extruders.
- a customary mixing apparatus including batch mixers, continuous mixers, kneaders, and extruders.
- the preferred mixing apparatus is an extruder.
- the resin composition may, to improve the impact strength, contain impact modifiers, advantageously impact-modifying elastomers.
- Impact- modifying elastomers for the instant invention are known to a skilled worker. Examples are rubbers based on ethylene, propylene, butadiene, and acrylates, e.g. methacrylates, or mixtures thereof.
- Other examples include EP and EPDM rubbers, with EP rubber (ethylene propylene rubber) being preferred in applications where automotive body parts are being prepared.
- EP rubber ethylene propylene rubber
- a representative example of a currently commercially available EP rubber is sold under the name VISTALON 878 by Exxon Chemical.
- Suitable impact-modifying elastomers are described for example in Methoden der organischen Chemie (Houben-Weyl), volume XIV/1 , Makromolekulare Chemie (Georg-Thieme- Veriag, Stuttgart, 1961), pages 390 to 406, and in the monograph by CB. Bucknal, Toughened Plastics (Applied Publishers, London, 1977).
- TPO thermoplastic polyolefin
- TPO's are commonly used in the manufacture of molded automotive body parts, such as bumper fascias. Such molded parts may also contain other components such as fillers, as described hereinbelow.
- TPO-based compositions can be prepared in the same manner as for non-elastomer-containing compositions. TPO's are commonly sold in compounded or reactor grades. Representative examples of TPO which are currently available commercially are described below in the paragraphs preceding Examples 1-4.
- the polyetheramine and functionalized polypropylene, and optionally a small amount of PP or TPO can be reacted to form a reaction product concentrate and, later, the reaction product concentrate can be blended with polypropylene or TPO.
- the polyetheramine comprises from about 10 to about 50 weight percent ofthe concentrate.
- the reaction product of polyether amine and maleated PP is prepared neat, the reaction product can be blended or compounded with polypropylene or TPO and any other components of the desired composition to the desired levels using a mixing apparatus such as an extruder. It should be understood that PP may be commonly used to dilute the reaction.
- the reaction product, polypropylene and any other components can be thoroughly mixed as solids prior to introducing the admixture in the mixing apparatus.
- mixers are available which will mix the components during operation. In either case, during operation ofthe mixer, the components are heated to melt the solids, with the melted components being thereafter mixed to form the final composition.
- the resin may also contain reinforcing agents and/or additives.
- the reinforcing agents used may be reinforcing fillers, for example, carbon or carbon fibers; clay, chalk, talc, and mica to control shrinkage and control coefficient of thermal expansion; glass (beads or fibers) to increase stiffness.
- the fillers may be finished with adhesion promoters and/or sizing agents.
- phosphite or hindered phenol or both can be added as a stabilizer (as a free radical scavenger).
- compositions include a glass filler
- the composition can contain up to about 40% glass filler if highly stiff compositions are desired. More typically, from about 2% to about 10% glass filler in the composition is employed.
- the compositions ofthe present invention that contain glass filler generally are substantially free of voids that typically develop in compositions containing polypropylene and glass. While not wishing to be bound by theory, it is believed that the reaction product of polyether amine and maleated polypropylene serves to "wet" the glass to thereby make the glass and polypropylene more combinable (more miscible). In this aspect ofthe invention, it is preferred to employ maleated polypropylene having an average molecular weight of about 40,000 to about 60,000, as is described hereinabove.
- the preferred functionalized polypropylene is a maleated polypropylene having the following structure:
- PP is polypropylene
- the preferred polyetheramines are monoamines and diamines.
- the preferred monoamines as well as the preferred triamines have a molecular weight of from about 200 to about 4000.
- the preferred diamines have a molecular weight of from about 148 to about 6000. More preferred monoamines and diamines have a molecular weight of from about 1,000 to about 3,000.
- the preferred reaction product between the preferred functionalized polypropylene, maleated polypropylene, and the preferred polyetheramine has the following formula:
- a is from about 5 to 50,000, for b:c from about 0:100 to 100:0, x is from about 1 to 3, and R is hydrogen or an alkyl radical having a functionality of x (i.e., if x is 2, R is a divalent), the alkyl radical having 1 to 10 carbon atoms.
- Suitable thermoplastic resin compositions may contain from about 66 to about 80 wt % PP, from about 20 to about 30 wt % maleated PP and from about 2 to about 10 wt % polyetheramine.
- the compositions include elastomers, such as in TPO-based compositions used to make automotive body parts, the compositions generally comprise from about 5 to about 40 wt % maleated PP, from about 2 to about 10 wt % polyetheramine and from about 50 to about 93 wt % PP, such percentages based on the weights ofthese components ofthe composition.
- Preferred compositions that include elastomers comprise about 15 to about 30 wt % maleated PP, from about 2 to about 8 wt % polyetheramine and from about 62 to about 83 wt % PP.
- the preferred customary mixing apparatus is an extruder in which the polyetheramine is grafted onto the maleated polypropylene at from about 175 to 300°C in the course of a residence time of from about 25 to 300 seconds.
- degradation begins to occur above this temperature range and below this range the compositions generally do not melt.
- Polypropylene is a non-reactive component ofthe mixing blend.
- the preferred temperature range is from about 190 to 260°C.
- Molded articles prepared from compositions according to the present invention are generally directly paintable.
- Representative examples of paints commonly employed for this pu ⁇ ose include urethane-based and melamine-based paints. Such paints may be applied using conventional techniques.
- compositions ofthe present invention may be painted directly without chlorine pretreatment and optionally without primer, though a primer may be used.
- continuous compounding was carried out in a Werner & Pfleiderer 30 mm twin screw extruder (ZSK30), having a nine barrel configuration, three kneading zones and one vent section, in which the feed sequence was a combined feed in which all the components fed at the same location (hopper ofthe extruder).
- ZSK30 Werner & Pfleiderer 30 mm twin screw extruder
- HIMONT CA53 A is a reactor grade TPO containing polypropylene ("PP”) and ethylene propylene rubber (“EP rubber”) obtained from Himont, which may be described as having medium melt flow.
- Phenol is ETHANOX 330 which is a hindered phenol stabilizer obtained from Albemarle.
- EPOLENE E-43 is a maleated PP obtained from Eastman Chemical, having about 4 wt % maleation as determined from proton nmr.
- HIMONT LB 150161 is a reactor grade TPO having a high melt flow.
- AMOCO 1016 is a PP having a melt flow rate at 230°C of about 5 g/min. as indicated by the supplier, Amoco Chemical.
- DEXFLEX D-161 is a compounded TPO of PP and EP rubber which is described as having medium melt flow by the supplier. D&S Plastics International.
- NICHIBAN refers to the tradename of a tape obtained from a Japanese company.
- STAMYLAN P is an impact EP copolymer containing 5-10% ethylene in the backbone obtained from DSM having a melt flow at 230°C/2.16 Kg using an 150 Rl 133 procedure of 4.7 dg/min. as reported by the supplier, Dutch State Mines ("DSM").
- KELTAN TP-0552-2 is a TPO having a melt flow at 230°C/2.16 Kg using an ISO Rl 133 procedure of 6.5 dg/min. as reported by the supplier, DSM.
- VISTALON 878 is an EP rubber available from Exxon Chemical.
- W/ PA means with isopropanol wipe prior to painting and "W/O IPA” means without isopropanol wipe painting.
- Example 1-4 the sample compositions were injection molded to prepare type I tensile bars, which were used in the adhesion tests. The following procedures were used in these examples.
- a hand mixed blend of polypropylene, maleated polypropylene, polyether amine and an antioxidant is produced and added to the feed hopper.
- the extruder heater bands are set to the following profile: feed throat 200°C, 220°C, 220°C, 220°C, 220°C, 220°C die face.
- the blend is fed into the feed throat of a Werner Pfleiderer ZSK30 twin screw extruder.
- the compounded product is cooled in a water bath and pelletized.
- Test specimens were injection molded using an ENGEL 55 ton injection molding machine using the following conditions:
- Mold Temperature 27°C Physical test specimens were allowed to equilibrate at 24°C and at 50% relative humidity for 48 hours. Tensile measurements were made according to ASTM D638 on an INSTRON frame using a crosshead speed of 10 cm/min. Flexural properties were measured according to ASTM D790 using a crosshead speed of 1.25 cm/min. Izod impact properties were measured according to ASTM D256.
- DMS Dynamical mechanical spectrometry
- Paint adhesion testing involved painting four inch injection molded discs with a white, two component urethane automotive paint supplied by RED SPOT PAINTS.
- the paint is applied with a high volume, low pressure BINKS spray gun.
- the painted disks are based for 30 minutes at 80°C.
- the specimens are conditioned 24 hours and then tested using a crosshatch/tape adhesion test where a multibladed scribe is used to generate 100 squares (approximately 2mm x 2mm per square) on the disks.
- a piece of tape (Scotch Brand 2040, 3M) is then applied over the squares and then the tape is pulled from the disk.
- the percentages denoted in the tables reflect the number of painted squares remaining after pulling the tape from the disk.
- a polyether monoamine containing 40 ethylene oxide units and 2.4 propylene oxide units generally ofthe formula shown in the Glossary for JEFFAMINE® M-2070, and which is referred to as
- a polyether monoamine containing 40 ethylene oxide units and 2.4 propylene oxide units generally ofthe formula shown in the Glossary for JEFFAMINE® M-2070, and which is referred to as
- Scotch Brand 2040 Control Examples 1-2 demonstrate that TPO modified with the reaction product of maleated PP and polyether amines of this invention provides a composition that is directly paintable.
- This paintability is surprising and unexpected in that the TPO's used to make automotive body parts, such as bumper fascias, are not directly readily paintable to a commercially acceptable level.
- the parts were treated with an adhesion promoter comprised of low molecular weight chlorinated polyethylene and a solvent, which results in a toxic waste stream that must be properly disposed of, and which adds to the cost ofthe parts.
- the parts could be heat treated using plasma irradiation, or otherwise partially burning the surface ofthe parts. This procedure is also expensive and may be, moreover, prone to variability in result owing to batch to batch variances from procedure and errors by the operator.
- compositions prepared in accordance with the practice ofthe present invention generally may be directly painted, with or without a primer, such that the paint adhesion is greater than about 75 percent based on the testing procedure described above for Examples 1-2, preferably greater than about 85 percent, more preferably greater than about 90 percent, and most preferably greater than about 95 percent.
- compositions prepared in accordance with the present invention may be used to prepare molded articles of manufacture using conventional, well known, molding techniques under standard conditions. For instance, standard injection molding techniques can be employed. Certain compositions (blends) ofthe present invention have su ⁇ risingly been found to have improved flowability characteristics during injection molding of TPO-based compositions such that less pressure may be used when injecting the melted compositions into a mold, as compared to compositions in which polyetheramine is absent.
- the desired shape ofthe molded article may vary depending on end use ofthe article. For instance, rubber containing compositions of the present invention may be injection molded to manufacture automotive body parts such as bumper fascias.
- a polyol was prepared by ethoxylation of methanol (ethylene oxide/methanol mole ratio of about 43:1), followed by propoxylation with approximately three moles of propylene oxide to yield a polyol that analyzed as 0.474 meq/g total acetylatables (2110 g/equivalent).
- methanol ethylene oxide/methanol mole ratio of about 43:1
- propoxylation with approximately three moles of propylene oxide
- the effluent was collected and stripped of ammonia, water and light materials and analyzed as follows: 0.473 meq/g total acetylatables, 0.454 meq/g total amine, and 0.450 meq/g primary amine.
- the polyether monoamine so formed contained about 43 ethylene oxide units and had an equivalent weight of about 21 10. This polyether monoamine is referred to herein as "XTJ-418.”
- Blends containing the polyether monoamine of Example 3 were prepared having the components and properties as denoted in Tables 4 A and 4B.
- Table 4A compositions containing polypropylene, maleated PP (HIMONT CA53A) and amines were employed.
- Table 4B TPO-based compositions are used.
- the JEFFAMINE M-2070 designates a polyether monoamine containing 10 propylene oxide units and 32 ethylene oxide units.
- the data points for JEFFAMINE M-2070 are intended to be for comparative pu ⁇ oses, as contrasted with the data for XTJ-418. TABLE 4A
- Example 4 demonstrates the superior paint adhesion achieved using the polyether monoamine ofExample 3. It should be appreciated that XTJ-418 results in adhesion of up to 80% in Table 4A, whereas the adhesion for JEFFAMINE M-2070 did not produce adhesion above 53%. Furthermore, it should be appreciated that in the automotive industry, adhesion of less than 100% is considered unacceptable for commercial pu ⁇ oses .
- R H or CH 3
- m is from about 3 to 32
- n is from about 10 to 32.
- x is about 33 for D-2000, x is about 68 for D-4000 and x is about 5.6 for D- 400.
- JEFFAMINE ED-600 JEFFAMINE ED-900. JEFFAMINE ED-2001. JEFFAMINE ED-4000. and JEFFAMINE ED-6000
- b is about 8.5 and a + c is about 2.5 for ED-600, b is about 15.5 and a + c is about 2.5 for ED-900, b is about 40.5 and a + c is about 2.5 for ED-20-1, b is about 86.0 and a + c is about 2.5 for ED-4000, and b is about 132.0 and a -t- c is about 3.0 for ED-6000.
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR9609513-0A BR9609513A (en) | 1995-07-07 | 1996-07-08 | Modification of polypropylene by polyether amine. |
DE69601643T DE69601643T2 (en) | 1995-07-07 | 1996-07-08 | MODIFICATION OF POLYPROPYLENE BY POLYETHERAMINE |
AU66752/96A AU6675296A (en) | 1995-07-07 | 1996-07-08 | Polyether amine modification of polypropylene |
EP96926704A EP0837895B1 (en) | 1995-07-07 | 1996-07-08 | Polyether amine modification of polypropylene |
DK96926704T DK0837895T3 (en) | 1995-07-07 | 1996-07-08 | Polyetheramine modification of polypropylene |
JP9505926A JPH11509252A (en) | 1995-07-07 | 1996-07-08 | Polyetheramine modification of polypropylene |
NO980040A NO980040L (en) | 1995-07-07 | 1998-01-05 | Polyetheramine modification of polypropylene |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/499,521 | 1995-07-07 | ||
US08/499,521 US5783630A (en) | 1993-07-13 | 1995-07-07 | Polyether amine modification of polypropylene |
Publications (1)
Publication Number | Publication Date |
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WO1997003108A1 true WO1997003108A1 (en) | 1997-01-30 |
Family
ID=23985583
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1996/011389 WO1997003108A1 (en) | 1995-07-07 | 1996-07-08 | Polyether amine modification of polypropylene |
Country Status (13)
Country | Link |
---|---|
US (3) | US5783630A (en) |
EP (1) | EP0837895B1 (en) |
JP (1) | JPH11509252A (en) |
KR (1) | KR19990028782A (en) |
AT (1) | ATE177124T1 (en) |
AU (1) | AU6675296A (en) |
BR (1) | BR9609513A (en) |
DE (1) | DE69601643T2 (en) |
DK (1) | DK0837895T3 (en) |
ES (1) | ES2129982T3 (en) |
MX (1) | MX9800029A (en) |
NO (1) | NO980040L (en) |
WO (1) | WO1997003108A1 (en) |
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KR101222195B1 (en) * | 2011-12-02 | 2013-01-14 | 부산대학교 산학협력단 | Polarity-controlled impact-resistance epoxy composition |
WO2019036588A1 (en) * | 2017-08-18 | 2019-02-21 | Becton, Dickinson And Company | Amphiphilic graft copolymers |
US10654979B2 (en) | 2017-08-18 | 2020-05-19 | Becton, Dickinson And Company | Amphiphilic graft copolymers |
Also Published As
Publication number | Publication date |
---|---|
DE69601643D1 (en) | 1999-04-08 |
ATE177124T1 (en) | 1999-03-15 |
AU6675296A (en) | 1997-02-10 |
US5965667A (en) | 1999-10-12 |
US5783630A (en) | 1998-07-21 |
DE69601643T2 (en) | 1999-06-24 |
US6140416A (en) | 2000-10-31 |
NO980040D0 (en) | 1998-01-05 |
BR9609513A (en) | 1999-12-14 |
MX9800029A (en) | 1998-11-30 |
DK0837895T3 (en) | 1999-10-04 |
JPH11509252A (en) | 1999-08-17 |
EP0837895A1 (en) | 1998-04-29 |
KR19990028782A (en) | 1999-04-15 |
EP0837895B1 (en) | 1999-03-03 |
NO980040L (en) | 1998-02-25 |
ES2129982T3 (en) | 1999-06-16 |
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