Water repellent composition and fiber treatment agent
AssigneeShin-Etsu Chemical Co., Ltd.
InventorYuta Hamajima
Life of this patent
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Abstract
A water repellent composition that contains (A) a trialkylsiloxysilicate represented by average composition formula (1): 100 mass parts, (B) an organopolysiloxane having at least two hydroxyl groups or alkoxy groups in the molecule represented by formula (2): 1-100 mass parts, (C) one or more selected from tetraalkoxytitaniums represented by general formula (3) (in the formula, M is titanium or zirconium, X are each independently a C1-8 alkyl group): 10-300 mass parts, and (D) an organic solvent: 100-30,000 mass parts, has an excellent water repellency-imparting effect, and can impart good softness to treated fibers.
Claims4
A water repellent composition comprising:
- (A) 100 parts by weight of a trialkylsiloxy silicate of average composition formula (1) below
- wherein each R1 is independently an alkyl group of 1 to 20 carbon atoms, and a/b is from 0.5 to 1.5;
- (B) from 1 to 100 parts by weight of an organopolysiloxane of formula (2) below having at least two hydroxyl or alkoxy groups on the molecule
- wherein each R2 is independently an unsubstituted monovalent hydrocarbon group of 1 to 20 carbon atoms, each R3 is independently a group selected from a hydroxyl group and alkoxy groups of 1 to 4 carbon atoms, c is from 3 to 5,000, and d is from 0 to 50;
- (C) from 10 to 300 parts by weight of one or more compound selected from the group consisting of tetraalkoxytitaniums, tetraalkoxyzirconiums and hydrolyzates thereof represented by general formula (3) below
- wherein M is titanium or zirconium, and each X is independently an alkyl group of 1 to 8 carbon atoms;
- (D) from 100 to 30,000 parts by weight of an organic solvent;
- and
- (E) from 3 to 300 parts by weight of an organopolysiloxane of formula (4) below
- wherein each R4 is independently an unsubstituted monovalent hydrocarbon group of 1 to 20 carbon atoms, and e is from 10 to 3,000.
Dependencies are inferred from the claim text.