Tire puncture sealant, and tire puncture repair kit using same

Patent metadata

Field	Value
Publication number	US-9527985-B2
Application number	US-201414780006-A
Country	US
Kind code	B2
Filing date	Mar 25, 2014
Priority date	Mar 27, 2013
Publication date	Dec 27, 2016
Grant date	Dec 27, 2016

Abstract

An object of the present invention is to provide a tire puncture sealant excellent in sealing performance even in a small amount. The present invention is a tire puncture sealant which contains a synthetic resin emulsion A, and a natural rubber latex and/or a synthetic resin emulsion B, in which the surface free energy of the synthetic resin emulsion A is from 20 to 50 mJ/m 2 , and the solid content of the synthetic resin emulsion A is from 5 to 25 parts by mass per 100 parts by mass of the solid content of the natural rubber latex and/or the solid content of the synthetic resin emulsion B, and a tire puncture repair kit using the same.

First claim

What is claimed is:

1. A tire puncture sealant comprising:
a synthetic resin emulsion A;
a natural rubber latex and/or a synthetic resin emulsion B, and
an antifreezing agent,
a surface free energy of the synthetic resin emulsion A being from 20 to 50 mJ/m 2 ,
a solid content of the synthetic resin emulsion A being from 5 to 25 parts by mass per 100 parts by mass of a solid content of the natural rubber latex and/or a solid content of the synthetic resin emulsion B.

2. The tire puncture sealant according to claim 1 , wherein the synthetic resin emulsion A is a silicone emulsion.

3. The tire puncture sealant according to claim 1 , wherein the synthetic resin emulsion B is an ethylene-vinyl acetate copolymer emulsion and/or a polyvinyl acetate emulsion.

4. The tire puncture sealant according to claim 1 , wherein the antifreezing agent is at least one selected from the group consisting of ethylene glycol, propylene glycol, diethylene glycol and glycerin.

5. The tire puncture sealant according to claim 1 , containing the natural rubber latex and the synthetic resin emulsion B, wherein the solid content of the natural rubber latex is from 20 to 85 parts by mass; and the solid content of the synthetic resin emulsion B is from 15 to 80 parts by mass based on a total of 100 parts by mass of the solid content of the natural rubber latex and the solid content of the synthetic resin emulsion B.

6. A tire puncture repair kit comprising the tire puncture sealant described in claim 1 .

Assignees

• Yokohama Rubber Co Ltd

Inventors

• Okamatsu Takahiro

Classifications

• C08K5/5419 Primary

  containing at least one Si—C bond · CPC title

• B29C73/163

  Sealing compositions or agents, e.g. combined with propellant agents · CPC title

• C08K5/053

  Polyhydroxylic alcohols · CPC title