Backing material

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

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Details

521 92, 521 93, 521 94, 521 95, 521138, 525444, C08J 910

Patent

active

045393370

ABSTRACT:
A backing material consisting essentially of a two part phthalallic polyester resin including an expansion agent and a filler in an amount to offset shrinking during curing.

REFERENCES:
patent: 4011195 (1977-03-01), Self
patent: 4314036 (1982-02-01), Throne

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