Rubbery polymer with improved properties

Details Rubbery polymer with improved properties Rubbery polymer with improved properties

2006-01-10

2006-01-10

Egwim, Kelechi C. (Department: 1713)

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

C524S461000, C524S504000, C524S515000, C524S517000, C524S523000, C524S527000, C524S548000, C524S558000, C524S561000, C524S565000, C524S577000

Reexamination Certificate

active

06984686

ABSTRACT:
The present invention discloses a rubbery polymer having improved properties, which is comprised of repeat units which are comprised of (a) butyl acrylate, or optionally a mixture of butyl acrylate and 2-ethylhexyl acrylate containing up to about 40 percent 2-ethylhexyl acrylate, (b) at least one member selected from the group consisting of methyl methacrylate, ethyl methacrylate, methyl acrylate, and ethyl acrylate, (c) optionally, about 0% to about 40% of an alkoxy ethyl acrylate or an alkoxy ethyl methacrylate, (d) acrylonitrile, (e) styrene, and (f) a crosslinking agent; wherein about 1% to about 10% of a monomer containing reactive cure sites selected from the group consisting of hydroxyl groups, glycidyl groups, carboxylic acid groups, and unsaturated cure sites is incorporated into the rubbery polymer.

REFERENCES:
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patent: 5367029 (1994-11-01), Fischer et al.
patent: 6031051 (2000-02-01), Wu
patent: 6476128 (2002-11-01), Berzinis
patent: WO 01 74944 (2001-10-01), None

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