Water repellent composition and process for producing moisture permeable waterproof film coated article

Patent metadata

Field	Value
Publication number	US-2019016879-A1
Application number	US-201816136328-A
Country	US
Kind code	A1
Filing date	Sep 20, 2018
Priority date	Apr 15, 2016
Publication date	Jan 17, 2019
Grant date	—

Abstract

The monomer (b) is a (meth)acrylate having no polyfluoroalkyl group and having a C12-22 alkyl group.

First claim

What is claimed is:

1 . A water repellent composition characterized by comprising a copolymer (A) having structural units based on the following monomer (a) and structural units based on the following monomer (b), a polymer (B) having an amino group, an ammonium salt group or an amide group as a pendant group (but excluding the same one as the copolymer (A)), and an aqueous medium,
Monomer (a): a compound represented by the following formula (m1):
R F -Q-Z—C(O)C(R)═CH 2   (m1).

wherein RE is a C 4-6 perfluoroalkyl group, Q is a divalent hydrocarbon group having no fluorine atom, or a single bond, Z is —O— or NH—, and R is a hydrogen atom, a methyl group or a chlorine atom,
Monomer (b): a (meth)acrylate having no polyfluoroalkyl group and having a C 12-22 alkyl group.

2 . The water repellent composition according to claim 1 , wherein the mass ratio ((A)/(B)) of the copolymer (A) to the polymer (B) is from 100/0.01 to 100/10.

3 . The water repellent composition according to claim 1 , wherein the proportion of the structural units based on the monomer (a) is from 5 to 95 mass % in all structural units (100 mass %) based on monomers constituting the copolymer (A).

4 . The water repellent composition according to claim 1 , wherein the proportion of the structural units based on the monomer (b) is from 5 to 95 mass % in all structural units (100 mass %) based on monomers constituting the copolymer (A).

5 . The water repellent composition according to claim 1 , wherein the mass average molecular weight of the polymer (A) is from 1,000 to 500,000.

6 . The water repellent composition according to claim 1 , wherein the mass average molecular weight of the polymer (B) is from 1,000 to 200,000.

7 . The water repellent composition according to claim 1 , wherein the monomer (a) is F(CF 2 ) 6 CH 2 CH 2 OC(O)C(CH 3 )═CH 2 .

8 . The water repellent composition according to claim 1 , wherein the monomer (b) is stearyl (meth)acrylate or behenyl (meth)acrylate.

9 . The water repellent composition according to claim 1 , wherein the copolymer (A) further has structural units based on a monomer (c) of a halogenated olefin, and structural units based on a monomer (d) having a cross-linkable functional group.

10 . The water repellent composition according to claim 1 , which contains a non-ionic surfactant and a cationic surfactant.

11 . The water repellent composition according to claim 1 , wherein the aqueous medium is water, or a mixed medium of water and a water-soluble material.

12 . The water repellent composition according to claim 1 , wherein the solid content is from 10 to 40 mass % in the water repellent composition (100 mass %).

13 . A treatment liquid of water repellent composition having water or another medium mixed to the water repellent composition as defined in claim 1 .

14 . The treatment liquid of water repellent composition according to claim 13 , wherein the solid content is from 0.1 to 8 mass % in the water repellent composition (100 mass %).

15 . A process for producing a moisture permeable waterproof film coated article, comprising treating an article by the water repellent composition as defined in claim 1 to form a moisture permeable waterproof film on the surface of the article.

Assignees

• Agc Inc

Inventors

• Sugiyama Kazunori
• Inoue Hiroaki
• Oomori Yuuichi
• Hara Hiroyuki

Classifications

• C08F220/24

  containing perhaloalkyl radicals · CPC title

• D06M15/295

  containing fluorine · CPC title

• C09D133/08

  Homopolymers or copolymers of acrylic acid esters · CPC title

• D06M15/267

  of unsaturated carboxylic esters having amino or quaternary ammonium groups · CPC title

• C08F226/04

  Diallylamine · CPC title