Sealing of containers

Details Sealing of containers Sealing of containers

1990-04-11

1992-03-03

Lipman, Bernard

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

5253295, 5253296, 5253302, 525367, 525368, 525369, 525370, 525371, 525372, 525373, C08F 842

Patent

active

050934341

ABSTRACT:
This invention relates to compositions comprising an elastomeric material based on a styrene-butadiene-alkyl (meth) acrylate copolymer also including an ethylenically unsaturated carboxylic acid.
The compositions are used for forming a sealing gasket for a container that contains an organic solvent, by crosslinking with a polyvalent metal crosslinking agent, and preferably also a vulcanizing crosslinking agent.
The preferred ethylenically unsaturated carboxylic acid is itaconic acid.

REFERENCES:
patent: 3301806 (1967-01-01), Guziak et al.
patent: 4257935 (1981-03-01), Sekiguchi et al.
patent: 4438232 (1984-03-01), Lee
Abstract, Derwent WPIL, No. 86-214724(33), Derwent Publications Ltd., GB; JP-A-61-145,273, 02, 07--1986.

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