Polymer, water repellent, fibrous product and method of manufacturing a fibrous product

By using a polymer layer with specific structural units on fiber products, the problems of insufficient water repellency and chalk mark resistance of water repellents in the prior art are solved, and good water repellency and chalk mark resistance of fiber products are achieved.

CN122161862APending Publication Date: 2026-06-05DAIKIN INDUSTRIES LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
DAIKIN INDUSTRIES LTD
Filing Date
2024-11-01
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

In the prior art, non-fluorinated water-repellent agents are difficult to impart good water repellency and chalk stain resistance to fiber products.

Method used

By using a polymer containing specific structural units, a polymer layer is formed on a fiber substrate, and the specific structural units of the polymer are combined with the fiber substrate to give it good water repellency and chalk stain resistance.

Benefits of technology

It achieves good water repellency and chalk stain resistance for fiber products, and improves the waterproof and oil-proof properties of fiber products.

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Abstract

A polymer for use as a water-repellent agent in fibers, comprising repeating units derived from monomer (1) shown in formula (1-1) or formula (1-2) below. [In each formula, R] a R b and R c Each of the following groups is independently composed of a hydrogen atom or a hydrocarbon group with 1 to 5 carbon atoms; X is a single bond or a divalent group; Y is independently composed of a hydrogen atom or a hydrocarbon group with 1 to 10 carbon atoms; n is an integer of 1 or 2; and Z is independently composed of -Z. 1 -SiZ 2 3, Z 1 Z is a single bond or a divalent group. 2 They are independently -(O-Si(-OSiZ) 21 3)2) p -O-SiZ 22 3, Z 21 Each is independently a hydrocarbon group having 1 to 10 carbon atoms or -OSiZ 211 3, Z 211 Each is an independent hydrocarbon group having 1 to 10 carbon atoms, Z 22 Each is independently a hydrocarbon group having 1 to 10 carbon atoms or -OSiZ 221 3, Z 221 Each group is an independent hydrocarbon group with 1 to 10 carbon atoms, and p is an integer from 0 to 196. a R b =C(-R) c )-X-CY 3－n Z n (1-1) CR a R b =C(-R) c )-X-NY 2－n Z n (1-2)
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