Claims
- 1. A blend comprising at least about 20 percent by weight of a fluorocarbon blowing agent and the balance being a polyol blend comprising (i) from about 20 percent to about 85 percent by weight of said polyol blend of an amine triol, or mixture of amine triols having the formula ##STR5## wherein R is an aliphatic radical having from 8 to 18 carbon atoms, inclusive, each R.sub.1 is independently selected from the group consisting of hydrogen and methyl, x, y, and z each independently have an average value between about 1 and about 5 inclusive, n is 2 or 3, and (ii) from about 15 percent to about 80 percent by weight of a primary hydroxyl polyol characterized by a molecular weight of from about 60 to about 1000 wherein said blowing agent and said polyol blend are miscible in each other.
- 2. A blend comprising from about 1 percent to about 6 percent by weight of water and from about 94 percent to about 99 percent by weight of a polyol blend comprising (i) from about 20 percent to about 85 percent by weight of said polyol blend of an amine triol, or mixture of amine triols having the formula ##STR6## wherein R is an aliphatic radical having from 8 to 18 carbon atoms inclusive, each R.sub.1 is independently selected from the group consisting of hydrogen and methyl, x, y, and z each independently have an average value between about 1 and about 5 inclusive, n is 2 or 3, and (ii) from about 15 percent to about 80 percent by weight of a primary hydroxyl polyol characterized by a molecular weight of from about 60 to about 1000 and wherein said water and said polyol blend are miscible in each other.
- 3. A polyol blend comprising from about 2 to about 20 percent by weight of an isocyanate trimerization catalyst and from about 80 to about 98 percent by weight of the polyol blend according to claim 1 or 2.
- 4. A blend comprising at least about 20 percent by weight of a fluorocarbon blowing agent and the balance being a polyol blend comprising (i) from about 20 percent to about 85 percent by weight of said polyol blend of an amine triol or mixture of amine triols having the formula ##STR7## wherein R is an aliphatic radical having from 8 to 18 carbon atoms, inclusive, x, y, and z each independently have an average value between about 1 and about 5 inclusive, n is 2 or 3 and (ii) from about 15 percent to about 80 percent by weight of a primary hydroxyl polyol having a molecular weight of from about 60 to about 1000 wherein said blowing agent and said polyol blend are miscible in each other.
- 5. A polyol blend according to claim 4 wherein the primary hydroxyl polyol (ii) is a diol and has a molecular weight of from about 60 to about 800.
- 6. A blend comprising at least about 20 percent by weight of a fluorocarbon blowing agent and the balance being a polyol blend comprising (i) from about 20 percent to about 85 percent by weight of said polyol blend of an amine triol according to claim 4 comprising a mixture of amine triols derived from cocoamine and each member of the mixture has x, y, and z average values of about 4.6, and n is 3; and (ii) from about 15 percent to about 80 percent by weight of a primary hydroxyl diol having a molecular weight of from about 60 to about 800 wherein said blowing agent and said polyol blend are miscible in each other.
- 7. A polyol blend according to claim 6 wherein the primary hydroxyl diol (ii) is diethylene glycol.
- 8. A polyol blend according to claim 6 wherein the primary hydroxyl diol (ii) is a polyoxydiethylene adipate glutarate polyester diol having a molecular weight from about 400 to about 600.
- 9. A polyol blend according to claim 6 wherein the primary hydroxyl diol (ii) comprises a mixture of from about 30 percent to about 50 percent by weight of diethylene glycol and from about 50 percent to about 70 percent by weight of a polyoxydiethylene adipate glutarate polyester diol having a molecular weight from about 400 to about 600.
- 10. In a process for the preparation of a cellular polymer in which the major recurring polymer unit is an isocyanurate moiety said process comprising the trimerization of an organic polyisocyanate in the presence of a minor amount of a polyol, a blowing agent, and a trimerization catalyst, the improvement which comprises preparing said cellular polymer by bringing together:
- A. an organic polyisocyanate; and
- B. from about 10 to about 120 parts by weight per equivalent of said polyisocyanate of a blend comprising:
- (a) about 2 to about 20 percent by weight of a polyisocyanate trimerization catalyst, and
- (b) about 80 to about 98 percent by weight of a mixture comprising:
- 1. about 20 to about 80 percent by weight of a fluorocarbon blowing agent, and
- 2. about 20 to about 80 percent by weight of a polyol component comprising an amine triol or mixture of amine triols having the formula ##STR8## wherein R is an aliphatic radical having from 8 to 18 carbon atoms, inclusive, each R.sub.1 is independently selected from the group consisting of hydrogen and methyl, x, y, and z each independently have an average value from about 1 to about 5 inclusive, and n is 2 or 3; and provided the total hydroxyl equivalents present in said blend (B) are within a range of from about 0.05 to about 0.5 equivalent per equivalent of said polyisocyanate.
- 11. In a process for the preparation of a cellular polymer in which the major recurring polymer unit is an isocyanurate moiety said process comprising the trimerization of an organic polyisocyanate in the presence of a minor amount of a polyol, a blowing agent, and a trimerization catalyst, the improvement which comprises preparing said cellular polymer by bringing together:
- A. an organic polyisocyanate; and
- B. from about 10 to about 120 parts by weight per equivalent of said polyisocyanate of a miscible blend comprising:
- (a) about 2 to about 20 percent by weight of a polyisocyanate trimerization catalyst, and
- (b) about 80 to about 98 percent by weight of a mixture comprising:
- 1. at least about 20 percent by weight of a fluorocarbon blowing agent, and
- 2. the balance being a polyol blend comprising (i) from about 20 percent to about 85 percent by weight of said polyol blend of an amine triol or mixture of amine triols having the formula ##STR9## wherein R is an aliphatic radical having from 8 to 18 carbon atoms, inclusive, x, y, and z each independently have an average value between about 1 and about 5 inclusive, n is 2 or 3 and (ii) from about 15 percent to about 80 percent by weight of a primary hydroxyl polyol having a molecular weight of from about 60 to about 1000; and provided the total hydroxyl equivalents present in said blend (B) are within a range of from about 0.05 to about 0.5 equivalent per equivalent of said polyisocyanate.
- 12. A process according to claim 11 wherein said polyisocyanate is a polymethylene polyphenyl polyisocyanate.
- 13. A process according to claim 11 wherein said polyol (ii) is a primary hydroxyl diol and has a molecular weight of from about 60 to about 800.
- 14. A process for the preparation of a cellular polymer in which the major recurring polymer unit is an isocyanurate moiety said process comprising bringing together:
- A. a polymethylene polyphenyl polyisocyanate; and
- B. from about 10 to about 120 parts by weight per equivalent of said polyisocyanate of a miscible blend comprising:
- (a) about 2 to about 20 percent by weight of a polyisocyanate trimerization catalyst, and
- (b) about 80 to about 98 percent by weight of a mixture comprising:
- 1. at least about 20 percent by weight of a fluorocarbon blowing agent, and
- 2. the balance being a polyol blend comprising (i) from about 20 percent to about 85 percent by weight of said polyol blend of an amine triol mixture having the general formula ##STR10## said mixture being derived from cocoamine and each member of the mixture has x, y, and z average values of about 4.6, and n is 3; and (ii) from about 15 percent to about 80 percent by weight of a primary hydroxyl diol having a molecular weight of from about 60 to about 800; and
- provided the total hydroxyl equivalents present in said blend (B) are within a range of from about 0.05 to about 0.5 equivalent per equivalent of said polyisocyanate.
- 15. A process according to claim 14 wherein the primary hydroxyl diol (ii) is diethylene glycol.
- 16. A process according to claim 14 wherein the primary hydroxyl diol (ii) is a polyoxydiethylene adipate glutarate polyester diol having a molecular weight from about 400 to about 600.
- 17. A process according to claim 14 wherein the primary hydroxyl diol (ii) comprises a mixture of from about 30 percent to about 50 percent by weight of diethylene glycol and from about 50 percent to about 70 percent by weight of a polyoxydiethylene adipate glutarate polyester diol having a molecular weight from about 400 to about 600.
CROSS-REFERENCE TO RELATED APPLICATION
This application is a continuation-in-part of pending application Ser. No. 047,036 filed June 11, 1979, now abandoned.
US Referenced Citations (6)
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
47036 |
Jun 1979 |
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