Plastics cellular 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

521110, 521135, 521138, 525 31, 525529, C08J 906

Patent

active

045887535

ABSTRACT:
The invention relates to a plastics cellular material comprising the reaction product of an unsaturated polyester resin containing a polymerizable unsaturated monomer and an epoxy-based vinyl ester in the presence of surfactants.

REFERENCES:
patent: 3993609 (1976-11-01), Kamens et al.
patent: 4101464 (1978-07-01), Kamens et al.
patent: 4482649 (1984-11-01), Miutel et al.

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