Claims
- 1. A high resilient polyurethane foam slab prepared from a formulation comprising as at least one silicone polyether copolymer surfactant comprised of a polyether backbone having an average at least three pendant groups of the formula: ##STR14## attached to said polyether backbone through a divalent aliphatic group having 2 to 10 carbon atoms and which may contain at least one heteroatom of the group of O, N and S, said heteroatom being located within said divalent aliphatic group and wherein R' represents C.sub.1 -C.sub.3, R" or OR'"; R" represents ##STR15## and R'" represents C.sub.1 -C.sub.3 ; and a, b and c have a value from 0 to 3; said silicone polyether copolymer surfactant being characterized by
- (a) a narrow uni-modal distribution;
- (b) being essentially free of silicone oils and process polyethers; and
- (c) any unreacted unsaturated groups on said polyether backbone are deactivated.
- 2. A high resilient rigid polyurethane foam prepared from a formulation comprising as at least one silicone polyether copolymer surfactant comprised of a polyether backbone having an average at least three pendant groups of the formula; ##STR16## attached to said polyether backbone through a divalent aliphatic group having 2 to 10 carbon atoms and which may contain at least one heteroatom of the group of O, N and S, said heteroatom being located within said divalent aliphatic group and wherein R' represents C.sub.1 -C.sub.3, R" or OR'"; R" represents ##STR17## and R'" represents C.sub.1 -C.sub.3 ; and a, b and c have a value from 0 to 3; said silicone polyether copolymer surfactant being characterized by
- (a) a narrow uni-modal distribution;
- (b) being essentially free of silicone oils and process polyethers; and
- (c) any unreacted unsaturated groups on said polyether backbone are deactivated.
- 3. A high resilient molded polyurethane foam prepared from a formulation comprising as at least one silicone polyether copolymer surfactant comprised of a polyether backbone having an average at least three pendant groups of the formula; ##STR18## attached to said polyether backbone through a divalent aliphatic group having 2 to 10 carbon atoms and which may contain at least one heteroatom of the group of O, N and S, said heteroatom being located within said divalent aliphatic group and wherein R' represents C.sub.1 -C.sub.3, R" or OR'"; R" represents ##STR19## and R'" represents C.sub.1 -C.sub.3 ; and a, b and c have a value from 0 to 3; said silicone polyether copolymer surfactant being characterized by
- (a) a narrow uni-modal distribution;
- (b) being essentially free of silicone oils and process polyethers; and
- (c) any unreacted unsaturated groups on said polyether backbone are deactivated.
Parent Case Info
This application is a division of prior U.S. application Ser. No. 268,187, filing date Nov. 7, 1988, now U.S. Pat. No. 4,962,218.
US Referenced Citations (4)
Foreign Referenced Citations (2)
Number |
Date |
Country |
1058385 |
Feb 1967 |
GBX |
2030146 |
Apr 1980 |
GBX |
Divisions (1)
|
Number |
Date |
Country |
Parent |
268187 |
Nov 1988 |
|