WO2006125258A1 - Low resilience flame retardant polyurethane foam - Google Patents
Low resilience flame retardant polyurethane foam Download PDFInfo
- Publication number
- WO2006125258A1 WO2006125258A1 PCT/AU2006/000686 AU2006000686W WO2006125258A1 WO 2006125258 A1 WO2006125258 A1 WO 2006125258A1 AU 2006000686 W AU2006000686 W AU 2006000686W WO 2006125258 A1 WO2006125258 A1 WO 2006125258A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- polyurethane foam
- foam
- polyol
- expandable graphite
- range
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0066—Use of inorganic compounding ingredients
-
- C—CHEMISTRY; METALLURGY
- 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
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/4009—Two or more macromolecular compounds not provided for in one single group of groups C08G18/42 - C08G18/64
- C08G18/4072—Mixtures of compounds of group C08G18/63 with other macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- 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
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/6552—Compounds of group C08G18/63
- C08G18/6558—Compounds of group C08G18/63 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6564—Compounds of group C08G18/63 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
-
- C—CHEMISTRY; METALLURGY
- 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
- C08G2110/00—Foam properties
- C08G2110/0008—Foam properties flexible
-
- C—CHEMISTRY; METALLURGY
- 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
- C08G2110/00—Foam properties
- C08G2110/0041—Foam properties having specified density
- C08G2110/005—< 50kg/m3
-
- C—CHEMISTRY; METALLURGY
- 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
- C08G2110/00—Foam properties
- C08G2110/0083—Foam properties prepared using water as the sole blowing agent
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2375/04—Polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/22—Expanded, porous or hollow particles
Definitions
- This invention relates to a method of production of flexible graphite filled low resilience polyurethane foams and to novel products obtained thereby.
- polyurethane foams make them useful for a wide variety of applications, including upholstery and bedding.
- the inherent flammability of polyurethane materials leads to melting and the spread of burning debris when exposed to fire conditions. Additionally the inherent properties of polyurethane materials leads to sustained combustion by progressive smouldering even after the flames have been extinguished.
- cellular materials manufactured from flammable polymers are more flammable than the solid materials because the insulating effect of their cellular nature allows a rapid build-up of heat at the surface. Consequently cellular polymeric materials have a higher rate of pyrolysis than solid materials.
- a particular type of graphite ie. expandable graphite, is employed.
- expandable graphite is intended to cover graphite containing one or more exfoliating agents such that considerable expansion will occur at higher temperatures.
- the foaming reaction mixture usually contains graphite in an amount such that there will be at least 10% by weight, preferably at least 15% by weight and advantageously at least 25% by weight of graphite in the final foam.
- the amount of graphite in the final foam may vary according to the level of flame retardancy required but usually the amount of graphite will not exceed 90% (preferably 15-50% by weight) in the final product.
- the amount of graphite in the final foam, expressed in parts per hundred parts of polyol is anywhere between 10 and 90 parts, advantageously between 30 and 60ppw.
- the invention provides a process of preparing a low resilience polyurethane foam the steps of:
- reaction mixture comprising an organic polyisocyanate, water, a reaction catalyst and the graphite containing polyol component, the reaction mixture initially being at a temperature of less than 40 0 C.
- In Line Blending process is a process for homogenous blending of dry powder additives into liquid chemical constituents without the need for batch processing or batch blending tanks.
- This system accurately meters dry powder additives such as melamine into a metered stream of polyol, where it is homogenised, de-aerated, chilled and then the powder/polyol slurry is accurately metered to the foam head as another component stream.
- the initial temperature is preferably in the range of 15°C to less than 40 0 C, more preferably 15-30 0 C and even more preferably 19-25°C.
- the graphite may comprise the sole flame retardant in the reaction mixture. More commonly, however, graphite will be accompanied by other, usually liquid flame retardants from the family of, but not limited to, phosphorus-containing flame retardants, boron compounds or halogen-containing flame retardants.
- the carbon particle size is in the range of 0.1-0.75 mm and the addition rates provide a foam comprising at least 25% by weight of expandable graphite.
- a low resilience, flame retardant flexible polyurethane foam formed by the process of mixing graphite into a polyol component and reacting in a single step at a blend temperature greater than 15°C and less than 40 0 C, a reaction mixture comprising an organic polyisocyanate, water, a reaction catalyst and the graphite containing polyol component.
- the conditions needed to produce flexible polyurethane foam will vary according to the reactants selected. A person of ordinary skill in the art will know whether to include additives and what additives should be incorporated into the formula (eg. catalyst or an auxiliary blowing agent), and what reaction conditions are required.
- the molecular weights of the polymeric polyols used in flexible low resilience graphite filled foam manufacture are usually from 200 to 5000, preferably from 500 to 3000, with a functionality (number of active hydroxyl groups per molecule) up to 7, preferably 2 to 5 and advantageously 2 to 3. Functionality of isocyanate is usually at least 2.
- test methods for evaluating recovery times have not been formalised.
- a polyurethane foam including:
- the foam comprises a reaction product of an organic poly isocyanate, water, a reaction catalysts, graphite and a polyol component wherein the reaction product comprises at least 20 wt % graphite.
- the foam has all of the above characteristics.
- the general chemical components of a one-shot polyurethane foam system are polyfunctional isocyanate and polyfunctional alcohol, along with the catalysts necessary to control the rate and type of reaction and other additives to control the surface chemistry of the process.
- the general method of producing cellular polyurethane is to mix the polyfunctional isocyanate, polyfunctional alcohols, catalysts, blowing agents and other additives. Carbon dioxide generated in situ by the reaction of isocyanate with water acts as a blowing agent and the heat from the reaction causes evaporation of volatile-blowing agent resulting in the creation of foam.
- all of the polyurethane foam ingredients are mixed and then discharged from the mixer to form the foam. The reactions begin immediately and proceed at such a rate that expansion starts quickly, usually in less than 10 seconds. The expansion generally takes a few minutes. Curing may continue for several days.
- the present invention is also applicable to the prepolymer (two-shot) process.
- the isocyanate, the polyol and the crosslinking agent are reacted and isolated as intermediates.
- the prepolymers are subsequently reacted with an additional component, or components, to yield the finished product. Most commonly the prepolymer is reacted with water to produce foam.
- Suitable polyfunctional isocyanates are any that when utilised in the process of the present invention will yield the desired graphite filled flame retardant polyurethane foam.
- suitable organic polyisocyanates include toluene diisocyanate, such as the 80:20 mixture or the 65:35 mixture of the 2,4- and 2,6-isomers, ethylene diisocyanate, propylene diisocyanate, methylene-bis-4-phenyl isocyanate, 3,3'bis-toluene-4,4'- diisocyanate, hexamethylene diisocyanate, napthalene-1 ,5-diisocyanate polymethylene polyphenylene diisocyanate, mixtures thereof and the like.
- the preferred organic polyisocyanate is Toluene Diisocyanate (TDI 80/20).
- the amount of polyisocyanate employed in the present invention is any amount suitable to obtain the desired low resilience graphite filled polyurethane foam.
- the amount of polyisocyanate employed in the process of this invention should be sufficient to provide at least about 0.5 NCO equivalent per hydroxyl group present in the reaction system (that is, isocyanate index of 50), which includes all the polyol reactants including water. It is preferable to employ sufficient isocyanate to provide an isocyanate index not greater than about 115, preferably in the range of about 50 and about 100.
- number of parts of isocyanate in reaction can vary between 20 to about 150.
- amount of isocyanate used is between 30-70 parts per weight of polyol (ppw).
- polyol' is an abbreviated name for poly-functional alcohols.
- polyether polyols There are two main types of polyols that are utilised in the polyurethane industry, namely polyether polyols and polyester polyols.
- Polyether polyols are of particular importance to the invention.
- a polyether polyol chemically is a polyfunctional alcohol having a polymeric chain with ether (C-O-C) linkages.
- Polyol is a source of hydroxyl and other isocyanate reactive groups. It is the reaction of polyol with isocyanate that forms one of the fundamental reactions (gelling) in foam making.
- polyether polyols are used, and based on the starting polyol structure, different processing and foam properties can be achieved.
- the polyols that may be employed in the present invention are generally of polyalkylene triol type, molecular weight ranging 300-3500, hydroxyl number ranging 100-600. However, polyols having higher and lower hydroxyl values higher are within the scope of the present invention, as are polyols having higher and lower molecular weights values.
- the polyols may be random, block or graft polyols and include mixtures of such.
- the polyols generally have at least three hydroxyl groups. It is to be noted that not all of the polyol content used in the process of the present invention need necessarily be polyols with ethylene oxide content of around 75%. It is only a requirement for a proportion of the polyol content.
- the polyol mixture should be of the polyalkylene triol type. More typically, from about 50 to 100% of all the polyol mixture used will be of the polyalkylene triol type.
- the polyol content that is not of the polyalkylene triol type can be any polyol that is typically used for the manufacture of polyurethane foam, that may include conventional polyol, copolymer polyol and/or high resilience polyol or a combination of polyols or any other polyol typically used in the manufacture of polyurethane foam.
- formulation is based on weight of polyol in the formulation. Number of parts of polyol can vary between 100 -150 parts. In the preferred form of the invention, number of parts is between 100 - 120.
- Foam density is determined by the amount of blowing agents present in the formulation, which is indicated by the blow index, that is the equivalent number of parts of water per 100 parts of polyol.
- the amount of water in formulation is anywhere from 1 ppw to about 8ppw. In the preferred form of the invention, amount of water is between 2-5 ppw.
- blowing agents for urethane foams are water or volatile fluids such as halocarbons.
- Water generally will be utilised in the present invention in an amount sufficient to produce the desired polyurethane foam, an auxiliary blowing agent such as, but not limited to methylene chloride, methyl chloroform, acetone or carbon dioxide may be used to fine tune physical properties of the foam.
- an auxiliary blowing agent such as, but not limited to methylene chloride, methyl chloroform, acetone or carbon dioxide may be used to fine tune physical properties of the foam.
- water is called the blowing agent, in fact it is carbon dioxide that acts as the blowing agent, as it is generated in situ by the reaction of isocyanate with water.
- liquid halocarbons When liquid halocarbons are utilised, they evaporate to produce a gas as the foaming mixture heats up.
- Water is generally employed in an amount in the range of about 1 to 25 parts per 100 parts by weight (pphp) of the total polyol components. Generally, water is utilised in the range of about 1 to about 15 parts water per 100 parts by weight of the di- and polyhydric components, preferably in range of 2 to 10 pphp and more preferably in range of 3 to 5 parts water per 100 parts by weight of the polyol.
- silicone surfactants eg., the silicone oils and soaps and the siloxane-oxyalkylene block copolymers.
- siloxane-oxyalkylene block copolymers Generally up to 4 pphp of the surfactants are employed, preferably between about 1.0 and about 2.5 pphp.
- emulsifiers include ethoxylated alkylphenols, aliphatic alcohols and sulfated aliphatic alcohols, with molecular weights in the range of about 60 to about 3000, preferably in the range of about 300 to about 2000. Generally in the range of about 0.5 to about 50 pphp, preferably between about 10 and about 30 pphp.
- Catalysts are used to assist both the gelling (isocyanate/polyol reaction) and blowing
- Catalysts may include tertiary amines, which are the most commonly used amines and are mostly used in assisting the blowing reaction. Different types and concentrations of amines can be selected to satisfy processing requirements such as cream time, rise time, gel times and cure.
- the catalyst may also include stannous octoate, which is the most widely used organometallic in the conventional slabstock foam industry.
- stannous octoate which is the most widely used organometallic in the conventional slabstock foam industry.
- any suitable catalyst may be utilised in the present invention as long as the desired polyurethane foam is produced.
- the catalyst employed may be any of the catalysts or mixtures of catalysts known to be useful for producing polyurethane foams by the one-step method.
- Such catalysts include for example, tertiary amines and metallic salts, particularly stannous salts.
- Typical tertiary amines include, but are not limited to, the following: N- methyl morpholine, Bis(2-dimethyiaminoethyl)ether, N-hydroxyethyl morpholine, triethylene diamine, triethylamine and trimethylamine.
- Typical metallic salts include, for example, the salts of antimony, tin and iron, eg., dibutyltin dilaurate, stannous octoate, and the like.
- a mixture comprised of a tertiary amine and a metallic salt is employed as a catalyst.
- the amount of catalyst utilised in the present invention may be any amount that is suitable to yield the desired polyurethane foam.
- the polyurethane foams of the invention are prepared in the presence of a certain amount of a reaction catalyst.
- the catalyst or catalyst mixture is usually employed in an amount in the range of about 0.01 and about 2.0, and preferably between about 0.10 and about 1.0 parts by weight per every 100 pphp.
- the graphite filled flame retarded polyurethane foam will have density range of about 20 to about 100 kg/m 3 .
- the density range will be in the range of 30 to 90 kg/m 3 and most preferably in the range of about 40 - 60 kg/m 3 .
- Samples are conditioned as per AS2282-1 -1999. Crushing is generally done by passing a sample between two rollers at least 15mm apart for two cycles (one cycle being two passes between rollers).
- a 5 kg weight (diameter 150mm, thickness 50 mm) is applied to foam for 30 seconds. After 30 second period has elapsed, the weight is removed and recovery time is recorded. Recovery time is the time in seconds at which no traces of applied weight are observable and the foam has completely recovered.
- the cell count per inch is preferably at least 24 more preferably greater than 42; and even more preferably greater than 50.
- This test is carried out on a sample greater than 25(w) x 25(L) x 25(t) mm where the thickness (t) of the sample is cut perpendicular to the direction of the rise of the foam.
- the amount of cells along a 25mm length is counted using a thread counting glass or other suitable optical instrument.
- the cell count is linear, repeated in three different areas and the average is calculated.
- Flexible slab foams were prepared from the ingredients (polyisocyanates, polyols, catalysts, foam stabilisers, etc.) set out below.
- Flexible slabctock foams were prepared using the following methods. In these methods batches of flexible polyurethane foams based on polyether polyols and on diisocyanates of the TDI80/20 type were prepared. The formulations were based on 100 parts by weight of total polyol, the necessary additives and total water. The amount of TDI used in the formulations was calculated using the OH numbers (given by supplier) and TDI requirement factor equal to 0.00155 x OH No. The following formula was used when calculating the amount of TDI required in pbw per 100 parts of polyol.
- TDI (index/100) x 0.00155 x (sum of polyol OH No's x p.b.w. + 6239 x total water pbw + sum of additives OH no's x pbw).
- the polyol was weighed into a 2.2lt-mixing container. Graphite and flame retardants (if applicable) were then added gradually with constant mixing with a spatula with gentle agitation for about 5 minutes Water, silicone, amines were weighed in this sequence into a mixing container and stirred with a spatula until it appeared homogeneous (about 10 seconds). The temperature was checked and checked and adjusted to 21+1 0 C. TDI 80/20 was weighed in a 1 -litre jug. Tin catalyst was added to the polyol blend and stirred with an electric stirrer for 10 seconds.
- TDI 80/20 Whilst stirring, pre-weighed TDI 80/20 was added. A timing device was started immediately after the TDI 80/20 was added to the polyol/water/catalyst mixture. The resultant mixture was mixed for 10 seconds and poured into the paper lined metal box. The time for the mixture to start to produce gas, losing clarity and become creamy was recorded as the cream time. The time at which the expansion finished was recorded as the rise time. After 10 minutes the foam was removed from the box and placed in an oven at 9O 0 C for 20 minutes to cure the surface. The foam was cut perpendicular to the direction of rise through the centre and a sample for testing was prepared.
- the initial blend temperature should be generally less than 4O 0 C, preferably 19-25°C, most preferably 20-23°C to maintain physical properties claimed for this grade.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2006251857A AU2006251857B2 (en) | 2005-05-24 | 2006-05-24 | Low resilience flame retardant polyurethane foam |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2005902663A AU2005902663A0 (en) | 2005-05-24 | Low resilience flame retardant polyurethane foam | |
AU2005902663 | 2005-05-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006125258A1 true WO2006125258A1 (en) | 2006-11-30 |
Family
ID=37451566
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/AU2006/000686 WO2006125258A1 (en) | 2005-05-24 | 2006-05-24 | Low resilience flame retardant polyurethane foam |
Country Status (1)
Country | Link |
---|---|
WO (1) | WO2006125258A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009121899A1 (en) | 2008-04-01 | 2009-10-08 | Metzeler Schaum Gmbh | Flame-retardant, reduced-weight elastic flexible polyurethane foam |
US20110015290A1 (en) * | 2009-07-18 | 2011-01-20 | Evonik Goldschmidt Gmbh | Use of metal salts of a carboxylic acid in the production of polyurethane systems |
CN104902995A (en) * | 2013-01-04 | 2015-09-09 | 赢创德固赛有限公司 | Use of tin salts of neodecanoic acid in the production of polyurethane systems |
US9745434B2 (en) | 2008-12-15 | 2017-08-29 | Trelleborg Industrial Products Uk Ltd | Elastomeric body with elastic fire retardant coating |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4698369A (en) * | 1984-12-20 | 1987-10-06 | Dunlop Limited A British Company | Flexible, flame-retardant polyurethane foams |
JPH04209616A (en) * | 1990-11-30 | 1992-07-31 | Toyo Rubber Chem Ind Co Ltd | Production of polyurethane foam |
US5169876A (en) * | 1989-03-18 | 1992-12-08 | Metzeler Schaum Gmbh | Process for producing a flame-resistant elastic soft polyurethane foam |
US5192811A (en) * | 1990-04-03 | 1993-03-09 | Metzeler Schaum Gmbh | Process for preparing a flame-resistant, elastic soft polyurethane foam |
US5739173A (en) * | 1990-10-26 | 1998-04-14 | Basf Aktiengesellschaft | Preparation of flame-resistant soft polyurethane foams of reduced smoke density, and melamine/expandable graphite/polyether-polyol dispersions for this purpose |
US6602925B1 (en) * | 1999-02-02 | 2003-08-05 | Dow Global Technologies Inc. | Open-celled polyurethane foams containing graphite which exhibit low thermal conductivity |
US6706774B2 (en) * | 2000-02-22 | 2004-03-16 | Hilti Aktiengesellschaft | Two-component on-site foam system and its use for foaming openings for the purpose of fire protection |
-
2006
- 2006-05-24 WO PCT/AU2006/000686 patent/WO2006125258A1/en active Application Filing
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4698369A (en) * | 1984-12-20 | 1987-10-06 | Dunlop Limited A British Company | Flexible, flame-retardant polyurethane foams |
US5169876A (en) * | 1989-03-18 | 1992-12-08 | Metzeler Schaum Gmbh | Process for producing a flame-resistant elastic soft polyurethane foam |
US5192811A (en) * | 1990-04-03 | 1993-03-09 | Metzeler Schaum Gmbh | Process for preparing a flame-resistant, elastic soft polyurethane foam |
US5739173A (en) * | 1990-10-26 | 1998-04-14 | Basf Aktiengesellschaft | Preparation of flame-resistant soft polyurethane foams of reduced smoke density, and melamine/expandable graphite/polyether-polyol dispersions for this purpose |
JPH04209616A (en) * | 1990-11-30 | 1992-07-31 | Toyo Rubber Chem Ind Co Ltd | Production of polyurethane foam |
US6602925B1 (en) * | 1999-02-02 | 2003-08-05 | Dow Global Technologies Inc. | Open-celled polyurethane foams containing graphite which exhibit low thermal conductivity |
US6706774B2 (en) * | 2000-02-22 | 2004-03-16 | Hilti Aktiengesellschaft | Two-component on-site foam system and its use for foaming openings for the purpose of fire protection |
Non-Patent Citations (1)
Title |
---|
DATABASE WPI Week 199237, Derwent World Patents Index; Class A25, AN 1992-304154, XP003005317 * |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009121899A1 (en) | 2008-04-01 | 2009-10-08 | Metzeler Schaum Gmbh | Flame-retardant, reduced-weight elastic flexible polyurethane foam |
US9745434B2 (en) | 2008-12-15 | 2017-08-29 | Trelleborg Industrial Products Uk Ltd | Elastomeric body with elastic fire retardant coating |
US20110015290A1 (en) * | 2009-07-18 | 2011-01-20 | Evonik Goldschmidt Gmbh | Use of metal salts of a carboxylic acid in the production of polyurethane systems |
CN101955573A (en) * | 2009-07-18 | 2011-01-26 | 赢创高施米特有限公司 | The purposes of the metal-salt of carboxylic acid in the preparation polyurethane system |
CN101955573B (en) * | 2009-07-18 | 2013-04-24 | 赢创高施米特有限公司 | Use of metal salts of a carboxylic acid in the production of polyurethane systems |
CN103214644A (en) * | 2009-07-18 | 2013-07-24 | 赢创高施米特有限公司 | Use of metal salts of a carboxylic acid in the production of polyurethane systems |
US8841403B2 (en) * | 2009-07-18 | 2014-09-23 | Evonik Degussa Gmbh | Use of metal salts of a carboxylic acid in the production of polyurethane systems |
CN103214644B (en) * | 2009-07-18 | 2016-02-24 | 赢创德固赛有限公司 | The metal-salt of carboxylic acid is preparing the purposes in polyurethane system |
CN104902995A (en) * | 2013-01-04 | 2015-09-09 | 赢创德固赛有限公司 | Use of tin salts of neodecanoic acid in the production of polyurethane systems |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0429103B1 (en) | Soft flexible polyurethane foams, a process for preparing the same, and a polyol composition useful in said process | |
EP0202732B1 (en) | Method for the preparation of semi-rigid polyurethane modified polyurea foam compositions | |
EP0583929B1 (en) | Flexible polyurethane foams using chlorinated alkanes | |
JP4926971B2 (en) | Novel foam modifier, foam made from novel foam modifier and method for producing foam | |
JPH0364311A (en) | Manufacture of polyurethane foam without using inert foaming agent | |
CZ20023238A3 (en) | Integral foams with surface jacket in the production of which pentafluorobutane swelling agent is used | |
US4239856A (en) | Method for preparing high-resilient flexible urethane foams | |
JP2004505138A (en) | Production of flexible polyurethane foams based on MDI-TDI | |
KR20020027298A (en) | Open-celled polyurethane foams containing graphite which exhibit low thermal conductivity | |
CA2039217A1 (en) | Polyurethane foams blown only with water | |
US3467605A (en) | High density rigid polyether/polyester urethane foams | |
WO2006125258A1 (en) | Low resilience flame retardant polyurethane foam | |
US5137934A (en) | Alkylene oxide adducts and polyurethane foams prepared therefrom | |
AU2006251857B2 (en) | Low resilience flame retardant polyurethane foam | |
EP0063930B1 (en) | Polyurethane foam | |
US10889680B1 (en) | Cesium and rubidium derivatives as catalysts for polyurethane foams | |
CN108368230B (en) | Process for producing polyurethane foam | |
US3385807A (en) | Cellular urethanes and process for preparing same wherein a combination of stannous and lead salts are employed | |
EP3204438B1 (en) | Improvements relating to polyurethanes | |
AU2868292A (en) | Flame retardant urethane foams | |
WO2016162353A1 (en) | Improvements relating to polyols and polyurethanes | |
JPH11322889A (en) | Polyisocyanate for rigid polyurethane foam, and production of rigid polyurethane foam using the same | |
MXPA01007813A (en) | Open-celled polyurethane foams containing graphite which exhibit low thermal conductivity |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2006251857 Country of ref document: AU |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWW | Wipo information: withdrawn in national office |
Country of ref document: DE |
|
ENP | Entry into the national phase |
Ref document number: 2006251857 Country of ref document: AU Date of ref document: 20060524 Kind code of ref document: A |
|
WWP | Wipo information: published in national office |
Ref document number: 2006251857 Country of ref document: AU |
|
NENP | Non-entry into the national phase |
Ref country code: RU |
|
WWW | Wipo information: withdrawn in national office |
Country of ref document: RU |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 06741108 Country of ref document: EP Kind code of ref document: A1 |