Method of preparing a low density, nonflammable polyvinyl foam c

Details Method of preparing a low density, nonflammable polyvinyl foam c Method of preparing a low density, nonflammable polyvinyl foam c

1982-11-08

1984-10-16

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521 73, 521 75, 521 93, 521 95, 521134, 521145, C08J 900

Patent

active

044775997

ABSTRACT:
A method of preparing a foamable polyvinyl system resin composition which renders a non-flammable, high strength to weight ratio foam product comprises, reacting at least 0.05 parts by weight of an organic radical initiator per 1 part by weight of polyvinyl system resin with the components consisting essentially of (a) at least one polyvinyl system resin (b) 2-100 parts by weight of at least one inorganic filler per 1 part by weight of polyvinyl system resin (c) an effective amount of at least one blowing agent.

REFERENCES:
patent: 3261785 (1966-07-01), Robinson
patent: 3261786 (1966-07-01), Breslow
patent: 3341481 (1967-09-01), Palmer

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