# US 5,710,231 A · Isocyanate-reactive compositions containing internal mold release agents > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 5,710,231 A - Document ID: US5710231A - Status: Granted - Kind: A - Application number: 08/604,146 - Filed: 1996-02-20 - Granted: 1998-01-20 - Earliest claimed: 1994-04-08 - Assignees: Imperial Chemical Industries PLC - Inventors: Brian Fogg; Herbert Russell Gillis; Nai Wen Lin - Web page: https://patentgrep.com/patent/US5710231A ## CPC - C08G 18/3228: {acyclic} - C08G 18/10: Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step - C08G 2110/0008: flexible - C08G 2110/005: < 50kg/m3 - C08G 2110/0083: prepared using water as the sole blowing agent - C08G 2125/00: Compositions for processes using internal mould release agents - C08G: MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS ## Abstract An isocyanate-reactive composition is provided which comprises: (a) at least one compound having a plurality of isocyanate-reactive groups; and (b) a fatty polyamine having the formula: R.sup.1 --(NH--R.sup.2).sub.x --NH.sub.2 wherein R.sup.1 is an alkyl group containing 8 to 40 carbon atoms, R.sup.2 is a divalent linking group containing 1 to 8 carbon atoms and x has a value of 1 to 4. Methods for preparing flexible foam articles utilizing the isocyanate-reactive compositions are also provided. ## Claims ### Claim 1 An isocyanate-reactive composition for use in the manufacture of flexible foam, comprising: (a) at least one compound having a plurality of isocyanate-reactive groups; and (b) an internal mold release agent consisting essentially of a fatty polyamine having the formula R.sup.1 --(NH--R.sup.2).sub.x --NH.sub.2 wherein R.sup.1 is an alkyl group containing 8 to 40 carbon atoms, R.sup.2 is a divalent linking group containing 1 to 8 carbon atoms, and x has a value in the range of 1 to 4. ### Claim 2 (depends on 1) The composition of claim 1 wherein R.sup.1 is an alkyl group containing 12 to 35 carbon atoms, R.sup.2 is an alkylene group containing 2 to 4 carbon atoms, and x has a value in the range of 1 to 3. ### Claim 3 (depends on 1) The composition of claim 1 wherein R.sup.1 is selected from the group consisting of linear decyl, dodecyl, hexadecyl and octadecyl. ### Claim 4 (depends on 2) The composition of claim 2 wherein R.sup.1 is octadecyl, R.sup.2 is (CH.sub.2).sub.3 -- and x has a value in the range of 1 to 3. ### Claim 5 (depends on 1) The composition of claim 1 wherein the compound containing a plurality of isocyanate-reactive groups is selected from the group consisting of polythioether, polyester, polyesteramide, polycarbonate, polyacetal, polyolefin, polysiloxane and polyether polyols. ### Claim 6 (depends on 5) The composition of claim 5 wherein said compound containing a plurality of isocyanate-reactive groups comprises 10 to 99% of a compound having a molecular weight of 1500 to 10,000. ### Claim 7 (depends on 5) The composition of claim 5 wherein the polyol is a polyether polyol. ### Claim 8 (depends on 7) The composition of claim 7 wherein the polyether polyol is selected from the group consisting of polyoxyethylene, polyoxypropylene, and poly(oxyethylene-oxypropylene) diols and triols. ### Claim 9 A reaction system for preparing flexible polyurethane or polyurea articles comprising: (a) an organic polyisocyanate; and (b) an isocyanate-reactive composition comprising: (i) at least one compound having a plurality of isocyanate-reactive groups; and (ii) an internal mold release agent consisting essentially of a fatty polyamine having the formula R.sup.1 --(NH--R.sup.2).sub.x --NH.sub.2 wherein R.sup.1 is an alkyl group containing 8 to 40 carbon atoms, R.sup.2 is a divalent linking group containing 1 to 8 carbon atoms, and x has a value in the range of 1 to 4. ### Claim 10 (depends on 9) The reaction system of claim 9 wherein R.sup.1 is an alkyl group containing 12 to 35 carbon atoms, R.sup.2 is an alkylene group containing 2 to 4 carbon atoms, and x has a value in the range of 1 to 3. ### Claim 11 (depends on 9) The reaction system of claim 9 wherein R.sup.1 is selected from the group consisting of linear decyl, dodecyl, hexadecyl and octadecyl. ### Claim 12 (depends on 10) The reaction system of claim 10 wherein R.sup.1 is octadecyl, R.sup.2 is --(CH.sub.2).sub.3 -- and x has a value in the range of 1 to 3. ### Claim 13 (depends on 9) The reaction system of claim 9 wherein the polyisocyanate is an aromatic polyisocyanate. ### Claim 14 (depends on 11) The reaction system of claim 11 wherein the polyisocyanate is selected from the group consisting of 4,4'-diphenylmethane diisocyanate, 2,4'-diphenylmethane diisocyanate, polymeric MDI, an MDI variant, and mixtures thereof. ### Claim 15 (depends on 9) The reaction system of claim 9 wherein the polyisocyanate comprises an isocyanate-terminated prepolymer. ### Claim 16 (depends on 13) The reaction system of claim 13 wherein the isocyanate-terminated prepolymer is the reaction product of an MDI stream and a polyol. ### Claim 17 (depends on 9) The reaction system of claim 9 wherein the compound containing a plurality of isocyanate reactive groups is selected from the group consisting of polythioether, polyester, polyesteramide, polycarbonate, polyacetal, polyolefin, polysiloxane and polyether polyols. ### Claim 18 (depends on 17) The composition of claim 17, wherein said compound containing a plurality of isocyanate-reactive groups comprises 10 to 99% of a compound having a molecular weight of 1500 to 10,000. ### Claim 19 (depends on 17) The reaction system of claim 17 wherein the polyol is a polyether polyol. ### Claim 20 (depends on 19) The reaction system of claim 19 wherein the polyether polyol is selected from the group consisting of polyoxyethylene, polyoxypropylene and poly(oxyethylene-oxypropylene) diols and triols. ### Claim 21 A process for preparing a molded polyurethane or polyurea flexible foam article comprising the steps of: (a) introducing into a mold an organic polyisocyanate and an isocyanate-reactive composition comprising: (i) at least one compound having a plurality of isocyanate-reactive groups; and (ii) an internal mold release agent consisting essentially of a fatty polyamine having the formula: R.sup.1 --(NH--R.sup.2).sub.x --NH.sub.2 wherein R.sup.1 is an alkyl group containing 8 to 40 carbon atoms, R.sup.2 is a divalent linking group containing 1 to 8 carbon atoms, and x has a value in the range of 1 to 4; (b) reacting the polyisocyanate and the isocyanate-reactive composition to form a molded article; and (c) removing the molded article from the mold. ### Claim 22 A process for preparing a molded polyurethane or polyurea flexible foam article comprising the steps of: (a) introducing into a mold an organic polyisocyanate, a blowing agent, and an isocyanate reactive composition comprising: (i) at least one compound having a plurality of isocyanate-reactive groups; and (ii) an internal mold release agent consisting essentially of a fatty polyamine having the formula: R.sup.1 --(NH--R.sup.2).sub.x --NH.sub.2 wherein R.sup.1 is an alkyl group containing 8 to 40 carbon atoms, R.sup.2 is a divalent linking group containing 1 to 8 carbon atoms, and x has a value in the range of 1 to 4; (b) reacting the polyisocyanate, the blowing agent and the isocyanate-reactive composition to form a molded flexible foam article; and (c) removing the molded article from the mold. ### Claim 23 (depends on 19) The process of claim 19 wherein the article is a low density flexible foam article. ### Claim 24 (depends on 20) The process of claim 20 wherein the article is a low density flexible foam article. ### Claim 25 (depends on 20) The process of claim 20 wherein the blowing agent comprises water.