Antilumping expandable styrene polymers

Details Antilumping expandable styrene polymers Antilumping expandable styrene polymers

1980-06-30

1981-05-26

Foelak, Morton

Coating processes

Particles, flakes, or granules coated or encapsulated

Resin base

521 54, 521 57, 521 59, 521 60, 521139, 525 96, 525 98, 525313, C08J 914

Patent

active

042698715

ABSTRACT:
Expandable styrene polymer particles are surface-coated with conjugated diene elastomers to prevent the particles from lumping together during expansion. The coating is applied by adding 0.05-0.25 part of conjugated diene elastomer to an aqueous suspension containing 100 parts of polymer particles during the impregnation of the mixture with a blowing agent.

REFERENCES:
patent: 2857339 (1958-10-01), Colwell
patent: 2857340 (1958-10-01), Colwell
patent: 2862834 (1958-12-01), Hiler
patent: 3060138 (1962-10-01), Wright
patent: 3277026 (1966-10-01), Newnham et al.
patent: 3819546 (1974-06-01), Attores, Jr.

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