Guerbet capped polyesters
View Patent ↗The present invention is related to a series of polyesters based upon the reaction of succinic acid, dimer alcohol and Guerbet alcohol. The resulting polyester is a high molecular weight product that is well tolerated by the skin and has outstanding emolliency. The Guerbet alcohol, being mono hydroxyl is a capper portion of the polymer, the dimer alcohol is a chain extender having two hydroxyl groups and the succinic acid is a diacid that reacts with the hydroxyl groups on the Guerbet and dimer alcohol to make the polyester.
1. A polyester of the present invention conforms to the following structure:
A-(B-C) x -B-A
wherein:
A is
wherein;
a in an integer ranging from 3 to 11;
b in an integer ranging from 5 to 19, with the proviso that b=a+2;
B is —C(O)—CH 2 —CH 2 —C(O)C—
C is a mixture of compounds conforming to the following structure:
and
wherein;
x is an integer ranging from 3 to 40.
2. A polyester of claim 1 wherein a is 3 and b is 5.
3. A polyester of claim 1 wherein a is 7 and b is 9.
4. A polyester of claim 1 wherein a is 9 and b is 11.
5. A polyester of claim 1 wherein a is 11 and b is 13.
6. A polyester of claim 1 wherein a is 13 and b is 15.
7. A polyester of claim 1 wherein a is 15 and b is 17.
8. A polyester of claim 1 wherein a is 17 and b is 19.
9. A polyester prepared by the esterification reaction of
(a) a Guerbet alcohol conforming to the following structure:
wherein;
a in an integer ranging from 3 to 11;
b in an integer ranging from 5 to 19, with the proviso that b=a+2;
(b) succinic acid conforming to the following structure:
HO—C(O)—CH 2 —CH 2 —C(O)—OH
and
(c) dimer alcohol, a mixture of compounds conforming to the following structure:
and
.
10. A polyester of claim 9 wherein the esterification reaction is carried out at a temperature of between 150 and 200° C. for four to eight hours.
11. A polyester of claim 10 wherein a is 3 and b is 5.
12. A polyester of claim 10 wherein a is 7 and b is 9.
13. A polyester of claim 10 wherein a is 9 and b is 11.
14. A polyester of claim 10 wherein a is 11 and b is 13.
15. A polyester of claim 10 wherein a is 13 and b is 15.
16. A polyester of claim 10 wherein a is 15 and b is 17.
17. A polyester of claim 10 wherein a is 17 and b is 19.
18. A polyester of claim 9 wherein a is 3 and b is 5.
19. A polyester of claim 9 wherein a is 7 and b is 9.
20. A polyester of claim 9 wherein a is 17 and b is 19.