Silane compound, rubber composition and tire

Patent metadata

Field	Value
Publication number	US-10899778-B2
Application number	US-201716084413-A
Country	US
Kind code	B2
Filing date	Mar 13, 2017
Priority date	Mar 14, 2016
Publication date	Jan 26, 2021
Grant date	Jan 26, 2021

Abstract

Disclosed are a silane compound of the general formula (1) described below, as well as a rubber composition including the same, and a tire. A silane compound of the general formula (1) is useful because of its ability to provide a silane compound comprising: a reactive functional group having a high reactivity with an organic polymer material such as rubber, and having a low polarity; and a hydrolyzable group having a high reactivity with an inorganic material such as silica or glass. The symbols in the formula are defined in the specification.

First claim

The invention claimed is:

1. A silane compound represented by the general formula (1) described below:

wherein R 1 and R 2 each independently represent hydrogen or an alkyl group; wherein R 1 and R 2 may form a crosslinked structure represented by —(CH 2 ) e —;
R 3 and R 4 each independently represent hydrogen or an alkyl group; wherein R 3 and R 4 may form a crosslinked structure represented by —(CH 2 ) f —;
R 5 is hydrogen or an alkyl group;
R 6 is an alkoxy group, or an amino group substituted with one or more alkyl groups;
R 7 is hydrogen or an alkyl group;
a is an integer of 1;
b is an integer of 1;
c is an integer of 1 to 3;
d is an integer of 0 to 5;
e and f are each independently an integer of 1 to 3; and
n is an integer of 1 to 3.

2. The silane compound according to claim 1 , the silane compound is at least one selected from the group consisting of:

3. The silane compound according to claim 1 , the silane compound is:

4. A rubber composition comprising the silane compound according to claim 1 ; an elastomeric polymer; and an inorganic material.

5. The rubber composition according to claim 4 , further comprising a silane compound represented by the general formula (2) described below:

wherein X is an integer of 2 to 20;
o and o′ are each independently an integer of 1 to 10;
p and q are each independently an integer of 1 to 3;
R 11 and R 13 are each independently an alkoxy group, or an amino group substituted with one or more alkyl groups; and
R 12 and R 14 are each independently hydrogen or an alkyl group.

6. The rubber composition according to claim 4 , wherein the content of the silane compound in said rubber composition is, per 100 parts by mass of said elastomeric polymer, 0.1 to 30 parts by mass.

7. A tire comprising the rubber composition according to claim 4 .

Assignees

• Eneos Corp

Inventors

• Chino Keisuke
• Suzuki Hiroaki

Classifications

• C08L7/00

  Compositions of natural rubber · CPC title

• C08K2201/014

  Additives containing two or more different additives of the same subgroup in C08K · CPC title

• C08K5/548

  containing sulfur {(C08K5/5477 takes precedence)} · CPC title

• C08K5/5435

  containing oxygen in a ring · CPC title

• C08K3/36

  Silica · CPC title