Water repellent oil repellent agent for fibers and fiber product

Patent metadata

Field	Value
Publication number	US-12168707-B2
Application number	US-201917269608-A
Country	US
Kind code	B2
Filing date	Aug 27, 2019
Priority date	Aug 28, 2018
Publication date	Dec 17, 2024
Grant date	Dec 17, 2024

Abstract

A water- and oil-repellent agent for fibers containing a bottle brush polymer having a structure represented by the following formula (1), wherein R1 is H or CH3; R2 is a divalent organic group; R3 is a polymer chain having a structure represented by the following formula (2) (wherein R4 is H or CH3; R5 is a C16-C40 monovalent hydrocarbon group; and n is an integer of 10 to 1000); and m is an integer of 10 to 5000:

First claim

The invention claimed is:

1. A water- and oil-repellent agent for fibers, comprising:
a bottle brush polymer having a structure represented by the following formula (1):

wherein
R 1 is H or CH 3 ;
R 2 is a divalent organic group;
R 3 is a polymer chain having a structure represented by the following formula (2):

wherein R 4 is H or CH 3 ; R 5 is a C16-C40 monovalent hydrocarbon group; and n is an integer of 10 to 1000;
m is an integer of 10 to 5000; and
wherein the bottle brush polymer contains bromine atoms, chlorine atoms, and iodine atoms in a total amount of 0.01 to 30% by mass.

2. The water- and oil-repellent agent for fibers according to claim 1 ,
wherein the bottle brush polymer has a number average molecular weight determined by gel permeation chromatography (GPC) of 5000 to 2000000.

3. The water- and oil-repellent agent for fibers according to claim 1 ,
wherein the bottle brush polymer has a molecular weight distribution determined by gel permeation chromatography (GPC) of 1.0 to 5.0.

4. The water- and oil-repellent agent for fibers according to claim 1 ,
wherein the bottle brush polymer contains halogen atoms in a total amount of 0.01 to 30% by mass.

5. The water- and oil-repellent agent for fibers according claim 1 ,
wherein R 5 is a C16-C24 monovalent hydrocarbon group.

6. The water- and oil-repellent agent for fibers according to claim 1 ,
wherein R 2 is a group represented by the following formula (a):
—(CH 2 ) p —O—C(═O)—R 6 —  (a)

wherein R 6 is a C1-C3 alkylene group; and p is an integer of 1 to 10.

7. The water- and oil-repellent agent for fibers according to claim 1 ,
wherein the bottle brush polymer contains no fluorine atom.

8. A fiber product comprising fibers coated with the water- and oil-repellent agent for fibers according to claim 1 .

Assignees

• National Univ Corporation Nara Institute Of Science And Technology
• Daikin Ind Ltd

Inventors

• Ando Tsuyoshi
• Terada Kayo
• Murase Nobuo
• Shibutani Shota
• Tanaka Yoshito
• Kawabe Takuma
• Yamamoto Ikuo

Classifications

• D10B2401/021

  hydrophobic · CPC title

• D10B2331/04

  polyesters, e.g. polyethylene terephthalate [PET] · CPC title

• D01F11/08

  of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds · CPC title

• C09K3/18 Primary

  for application to surfaces to minimize adherence of ice, mist or water thereto (rendering particulate materials free flowing, in general, e.g. making them hydrophobic B01J2/30); Thawing or antifreeze materials for application to surfaces (used in liquids for heat-transfer, heat-exchange or heat-storage or for the production of heat or cold other than by combustion, e.g. radiator liquids, C09K5/00) · CPC title

• C08F265/06

  Polymerisation of acrylate or methacrylate esters on to polymers thereof · CPC title