Water repellent composition

Patent metadata

Field	Value
Publication number	US-11041038-B2
Application number	US-201816635048-A
Country	US
Kind code	B2
Filing date	Jul 13, 2018
Priority date	Jul 31, 2017
Publication date	Jun 22, 2021
Grant date	Jun 22, 2021

Abstract

Provided is a water repellent composition which does not use a fluorine-containing monomer, especially a fluoroalkyl group-containing monomer. A water repellent composition which contains (1) (a) a polymer which has a repeating unit derived from an amide group-containing monomer that is represented by formula:(wherein R1 represents an organic residue having an ethylenically unsaturated polymerizable group; R2 represents a hydrocarbon group having 7-30 carbon atoms; and R3 represents a hydrocarbon group having 1-5 carbon atoms) in an amount of 2-100% by weight relative to the polymer, and (2) a liquid medium.

First claim

The invention claimed is:

1. A water-repellent composition comprising:
(1) a polymer comprising
(a) 2 to 100% by weight, based on the polymer, of a repeating unit derived from an amide group-containing monomer represented by the formula:

wherein R 1 is an organic residue having an ethylenically unsaturated polymerizable group,
R 2 is a hydrocarbon group having 7 to 30 carbon atoms, and
R 3 is a hydrocarbon group having 1 to 5 carbon atoms; and

(2) a liquid medium.

2. The water-repellent composition according to claim 1 , wherein, in the monomer (a), R 1 is —C(═O)CR 11 ═CH 2 wherein R 11 is a hydrogen atom or a methyl group.

3. The water-repellent composition according to claim 1 , wherein the polymer (1) further comprises a repeating unit derived from a polymerizable monomer other than the monomer (a), and the polymerizable monomer other than the monomer (a) is a compound represented by the formula:
CH 2 ═CA-T

wherein A is a hydrogen atom, a methyl group, a chlorine atom, a bromine atom or an iodine atom,
T is a hydrogen atom, a chlorine atom, a bromine atom, an iodine atom, a chain or cyclic hydrocarbon group having 1 to 40 carbon atoms, or a chain or cyclic organic group having an ester bond and having 2 to 41 carbon atoms.

4. The water-repellent composition according to claim 3 , wherein the polymerizable monomer other than the monomer (a) is at least one selected from the group consisting of:
(b) an acrylate ester monomer,
(c) a fluorine-free crosslinkable monomer, and
(d) a halogenated olefin.

5. The water-repellent composition according to claim 4 , wherein another acrylate ester monomer (b) is at least one selected from the group consisting of:
(b1) an acrylate ester monomer containing an aliphatic hydrocarbon group, and
(b2) an acrylate ester monomer containing a cyclic hydrocarbon group.

6. The water-repellent composition according to claim 4 , wherein the fluorine-free crosslinkable monomer (c) is a compound comprising at least two ethylenically unsaturated double bonds, or a compound comprising at least one ethylenically unsaturated double bond and at least one reactive group.

7. The water-repellent composition according to claim 4 , wherein the halogenated olefin monomer (d) is at least one selected form the group consisting of vinyl chloride and vinylidene chloride.

8. The water-repellent composition according to claim 4 , wherein, in the polymer, the amount of the repeating unit (b) is 0 to 200 parts by weight, the amount of the repeating unit (c) is 0 to 50 parts by weight, and the amount of the repeating unit (d) is 0 to 100 parts by weight, based on 100 parts by weight of the monomer (a).

9. The water-repellent composition according to claim 1 , wherein the liquid medium (2) is water, an organic solvent, or a mixture of water and an organic solvent.

10. The water-repellent composition according to claim 1 , which is an external treatment agent or an internal treatment agent.

11. A method for treating a substrate, comprising treating the substrate with the water-repellent composition according to claim 1 .

12. A method for producing a treated textile product, comprising treating a textile product with the water-repellent composition according to claim 1 .

Assignees

• Daikin Ind Ltd
• Nof Corp

Inventors

• Yamamoto Yuuki
• Uesugi Norimasa
• Yamamoto Ikuo
• Maruyama Kei-Ichi
• Fukushima Mitsuhiro
• Iizuka Muneaki

Classifications

• D06M2200/12

  Hydrophobic properties · CPC title

• D06M2101/34

  Polyamides · CPC title

• D06M2101/32

  Polyesters · CPC title

• C09D133/14 Primary

  of esters containing halogen, nitrogen, sulfur or oxygen atoms in addition to the carboxy oxygen · CPC title

• C08F220/58

  containing oxygen in addition to the carbonamido oxygen {, e.g. N-methylolacrylamide, N-(meth)acryloylmorpholine} · CPC title