Polymeric silicone polysorbate softeners
AssigneeZenitech LLC
InventorsCarter LaVay, Anthony J. O'Lenick, Jr.
Life of this patent
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Abstract
The present invention is directed to a class of polyesters that are lightly crosslinked polyesters made by reacting polysorbate units (linked by the reaction of their hydroxyl groups) to the carboxyl group of dimer acid. As will become clear, lightly crosslinked as used herein relates to reactions in which there is an excess of hydroxyl groups on a molar basis to carboxylic groups on the dimer acid. The polymers and a contribute softness, lubricity and antistatic properties when applied to hair, skin, textile fiber and paper.
Claims20
A polymer consisting of a polyester made by the reaction of:
- (a) a polysorbate conforming to the following structure
- e is an integer ranging from 0 to 30;
- f is an integer ranging from 0 to 30;
- g is an integer ranging from 0 to 30, with the proviso that e+f+g is an integer ranging from 9 to 50;
- R1 is alkyl having from 7 to 21 carbon atoms;
- and
- (b) a di-hydroxyl silicone conforming to the following structure;
- a is an integer ranging from 10 to 100;
- with dimer acid conforming to the following structure:
- or hydrogenated dimer acid conforming to the following structure:
- or mixtures thereof;
- at a temperature of between 150 and 200° C., the mole ratio of said carboxyl groups in the dimer acid to hydroxyl group in the polysorbate range from 1:2 to 1:3.
A process for conditioning fiber which comprises contacting the fiber with an effective conditioning concentration of a polymer consisting of a polyester made by the reaction of:
- (a) a polysorbate conforming to the following structure
- e is an integer ranging from 0 to 30;
- f is an integer ranging from 0 to 30;
- g is an integer ranging from 0 to 30, with the proviso that e+f+g is an integer ranging from 9 to 50;
- R1 is alkyl having from 7 to 21 carbon atoms;
- and
- (b) a di-hydroxyl silicone conforming to the following structure;
- a is an integer ranging from 10 to 100;
- with dimer acid conforming to the following structure:
- or hydrogenated dimer acid conforming to the following structure:
- or mixtures thereof;
- at a temperature of between 150 and 200° C., the mole ratio of said carboxyl groups in the dimer acid to hydroxyl group in the polysorbate range from 1:2 to 1:3.
Dependencies are inferred from the claim text.