Expandable styrene polymer particle compositions and a method fo

Details Expandable styrene polymer particle compositions and a method fo Expandable styrene polymer particle compositions and a method fo

1976-04-21

1976-11-30

Foelak, Morton

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 25E, 264 51, 264 53, 526910, 260 4585T, 260 4585S, C08J 920

Patent

active

039948412

ABSTRACT:
Expandable styrene polymer particle compositions containing (1) an expanding agent, which is volatilizable and does not dissolve or may slightly swell the styrene polymer particles, and having a boiling point lower than the softening point of the styrene polymer particles, and (2) a small amount of sulfur containing compound having the following general formula: ##EQU1## wherein R.sub.1 and R.sub.2 are the same or different higher alkyl groups having 12 - 18 carbon atoms and R.sub.3 and R.sub.4 are the same or different lower alkylene groups having 1 - 4 carbon atoms.

REFERENCES:
patent: 3551360 (1970-12-01), Pressler

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