Styrene polymer foam and the preparation thereof

Details Styrene polymer foam and the preparation thereof Styrene polymer foam and the preparation thereof

1976-11-02

1978-04-18

Foelak, Morton

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 25HB, 260 25FP, 264 50, 264DIG5, C08J 914

Patent

active

040850730

ABSTRACT:
Stable medium density large cell size styrene polymer foam is extruded in large sections employing as blowing agents: chlorofluoromethane, bromochlorodifluoromethane alone or in admixture with minor quantities of other halogen containing carbon compounds to provide machinable foams of good dimensional stability.

REFERENCES:
patent: 3449268 (1969-06-01), Scheffler
patent: 3766099 (1973-10-01), Kawai et al.
patent: 3900433 (1975-08-01), Taub
patent: 3960792 (1976-06-01), Nakamura

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