Adhesive composition

Patent metadata

Field	Value
Publication number	US-10336918-B2
Application number	US-201314419023-A
Country	US
Kind code	B2
Filing date	Aug 28, 2013
Priority date	Aug 31, 2012
Publication date	Jul 2, 2019
Grant date	Jul 2, 2019

Abstract

An adhesive composition containing a latex of a highly saturated nitrile rubber (A) which has α,β-ethylenically unsaturated nitrile monomer units 10 to 55 wt %, conjugated diene monomer units 25 to 89 wt %, and α,β-ethylenically unsaturated dicarboxylic acid monoester monomer units 1 to 20 wt % and has an iodine value of 120 or less and a polyvalent amine compound (B).

First claim

The invention claimed is:

1. An adhesive composition containing:
a latex consisting essentially of: (i) a highly saturated nitrile rubber (A) which has α,β-ethylenically unsaturated nitrile monomer units 10 to 55 wt %, conjugated diene monomer units 25 to 89 wt %, α,β-ethylenically unsaturated dicarboxylic acid monoester monomer units 1 to 20 wt %, and the highly saturated nitrile rubber (A) has an iodine value of 120 or less, and (ii) water; and
polyethyleneimine, wherein:
a solid content in the latex is 5 to 60 wt %, and
a content of the polyethyleneimine is 0.1 to 40 parts by weight with respect to 100 parts by weight of the highly saturated nitrile rubber (A).

2. The adhesive composition as set forth in claim 1 , wherein the α,β-ethylenically unsaturated dicarboxylic acid monoester monomer units are α,β-ethylenically unsaturated dicarboxylic acid monoalkyl ester monomer units.

3. The adhesive composition as set forth in claim 2 , wherein the α,β-ethylenically unsaturated dicarboxylic acid monoalkyl ester monomer units are mono-n-butyl maleate units.

4. The adhesive composition as set forth in claim 1 , wherein the polyethyleneimine has a weight average molecular weight (Mw) of 100 to 1,000,000.

5. The adhesive composition as set forth in claim 1 , wherein the polyethyleneimine has a weight average molecular weight (Mw) of 100 to 5,000.

Assignees

• Zeon Corp

Inventors

• Sakamoto Masato
• Nakashima Tomonori

Classifications

• B32B7/12

  using interposed adhesives or interposed materials with bonding properties · CPC title

• B32B2413/00

  Belts · CPC title

• C08F218/14

  Esters of polycarboxylic acids · CPC title

• B32B25/16

  comprising polydienes {homopolymers} or poly-halodienes {homopolymers (B32B25/12 takes precedence)} · CPC title

• Y10T428/31924

  Including polyene monomers · CPC title