US 11,982,048 B2 · Water-repellent composition

Abstract

A water repellent composition containing: (A) water repellent particles in which the number of surface alkyl groups on the water repellent particles is 600×1018-50,000×1018 per 1 g of water repellent particles; (B) a water-repellent resin which is a polymer having a long-chain C7-40 hydrocarbon group; and (C) a liquid medium. The water-repellent particles preferably have an average primary particle size of 1-100 nm. Also disclosed is a method for treating a fiber using the water repellent composition, a method for producing a treated textile product, a film formed from the water repellent composition, and a textile product treated with a treatment liquid containing the water-repellent composition.

Claims19

Dependent claims

A water-repellent composition comprising:

(A) a water-repellent particle in which the number of surface alkyl groups of the water-repellent particle is 600×1018 to 50,000×1018 per 1 g of the water-repellent particle;
(B) a water-repellent resin which is a polymer having a long-chain hydrocarbon group having 7 to 40 carbon atoms;
and
(C) a liquid medium,
wherein the amount of the water-repellent particle is 20 to 90% by weight based on the total weight of the water-repellent particle and the water-repellent resin.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application

17/359,065Filed 25 Jun 2021 · continuation

Priority

JP 2018-24813028 Dec 2018

Published

US 2022/0064851 A13 Mar 2022

Granted

14 May 2024

Term ends

Not estimatedThe source records don’t support an estimate.

Classification20 codes

D06M 15/263
Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds: of unsaturated carboxylic acids; Salts or esters…
D06M 23/08
Treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, characterised by the process: processes in which the…
C08F 120/14
Of monohydric alcohols or phenols: methyl esters , e.g. methyl acrylate
C08F 120/18
Of phenols or of alcohols containing two or more carbon atoms: with acrylic or methacrylic acids

Water-repellent composition

Life of this patent

Water-repellent composition

Life of this patent

Abstract

Claims19