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US 5,063,260 AGranted
Compositions and their use for treating fibers
AssigneeDow Corning Corporation
InventorsKun-Long Chen, Yung-Yu Hsu
Life of this patent
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Abstract
This invention discloses curable silicon compositions which impart beneficial characteristics to the fibers that are not possible without the use of the instant invention compositions and process.
Claims8
A composition of matter comprising
- (A) 36 to 94.9 weight percent of an amino organofunctional substantially linear polydiorganosiloxane polymer having the general formula ##STR22## (B) 5 to 55 weight percent of a blend of (i) an epoxyorganofunctional substantially linear polydiorganosiloxane polymer having the general formula ##STR23## and (ii) a carboxylic acid organofunctional substantially linear polydiorganosiloxane polymer having the general formula ##STR24## wherein each R"" is selected from alkyl radicals having 1 to 4 carbon atoms, alkoxy radicals having 1 to 4 carbon atoms, or the hydroxyl radical and each R is selected from alkyl radicals having 1 to 4 carbon atoms and at least 50 percent of the total substituents in each of the linear aminoorganofunctional, epoxyorganofunctional and carboxylic acid organofunctional polydiorganosiloxanes being methyl radicals;
- each R' is selected from divalent organic radicals comprising alkylene, aralkylene and alkarylene radicals having 2 to 12 carbon atoms, --(Q).sub.m NH(Q').sub.n --, wherein Q and Q' are each selected from the groups of R', and m and n each have a value of at least 1;
- x has a value of 1 to 3000;
- y has a value of 1 to 60;
- R" is selected from monovalent epoxyfunctional organic groups, wherein each R" is bonded to a silicon atom through a divalent organic bridge;
- x' has a value of 1 to 3000;
- y' has a value of 1 to 75;
- R"' is selected from a monovalent carboxylic acid organic group wherein each R"' is bonded to a silicon atom through a divalent organic bridge;
- x" has a value of 1 to 3000;
- y" has a value of 1 to 60, wherein the weight ratio of (B)(i) to (B)(ii) is in the range of 95:5 to 5:95 and,
- (C) 0.1 to 10 weight percent of an aminoorganosilane having the general formula ##STR25## wherein R has the same meaning as set forth for R above, R' has the same meaning as set forth for R' above, p has a value of 0, 1 2, q has a value of at least 1, r has a value of at least one, and the total value of p, q, and r has to be four;
- all weight percentages being based on the total weight of components (A), (B), and (C).
9 more elements
A process for the treatment of animal, cellulosic and synthetic fibers said process comprising contacting animal, cellulosic or synthetic fibers with a composition comprising
- (A) 36 to 94.9 weight percent of an amino organofunctional substantially linear polydiorganosiloxane polymer having the general formula ##STR26## (B) 5 to 55 weight percent of a blend of (i) an epoxyorganofunctional substantially linear polydiorganosiloxane polymer having the general formula ##STR27## and (ii) a carboxylic acid organofunctional substantially linear polydiorganosiloxane polymer having the general formula ##STR28## wherein each R"" is selected from alkyl radicals having 1 to 4 carbon atoms, alkoxy radicals having 1 to 4 carbon atoms, or the hydroxyl radical and each R is selected from alkyl radicals having 1 to 4 carbon atoms and at least 50 percent of the total substituents in each of the linear aminoorganofunctional, epoxyorganofunctional and carboxylic acid organofunctional polydiorganosiloxanes being methyl radicals;
- each R' is selected from divalent organic radicals comprising alkylene, aralkylene and alkarylene radicals having 2 to 12 carbon atoms, --(Q).sub.m NH(Q').sub.n --, wherein Q and Q' are each selected from the groups of R', and m and n each have a value of at least 1;
- x has a value of 1 to 3000;
- y has a value of 1 to 60;
- R" is selected from monovalent epoxyfunctional organic groups, wherein each R" is bonded to a silicon atom through a divalent organic bridge;
- x' has a value of 1 to 3000;
- y' has a value of 1 to 75;
- R"' is selected from a monovalent carboxylic acid organic group wherein each R"' is bonded to a silicon atom through a divalent organic bridge;
- x" has a value of 1 to 3000;
- y" has a value of 1 to 60, wherein the weight ratio of (B)(i) to (B)(ii) is in the range of 95:5 to 5:95 and, (C) 0.1 to 10 weight percent of an aminoorganosilane having the general formula ##STR29## wherein R has the same meaning as set forth for R above, R' has the same meaning as set forth for R' above, p has a value of 0, 1 or 2, q has a value of at least 1, r has a value of at least one, and the total value of p, q, and r has to be four;
- all weight percentages being based on the total weight of components (A), (B), and (C);
- (II) thereafter curing the composition on the fiber to obtain a treated fiber.
9 more elements
Dependencies are inferred from the claim text.