Styrene acrylonitrile copolymer foam with infrared...

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Cellular products or processes of preparing a cellular...

Reexamination Certificate

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Details

C521S081000, C521S139000, C521S146000, C521S147000, C264S053000, C264S055000

Reexamination Certificate

active

07919538

ABSTRACT:
Polymer foam containing styrene-acrylonitrile and containing one or more infrared attenuating agents achieves surprisingly high dimensional integrity at elevated temperatures.

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