Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Cellular products or processes of preparing a cellular...
Patent
1979-11-23
1982-06-08
Foelak, Morton
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Cellular products or processes of preparing a cellular...
521 95, 521139, 521143, 521145, 521146, 521180, 521184, 521189, C08J 908, C08J 910
Patent
active
043340300
ABSTRACT:
Foamable blends are provided of high performance thermoplastic polymers such as polyphenylene oxides, polystyrenes, etc., and an effective amount of a first blowing agent which is an amide derivative of azodicarboxylic acid and a second blowing agent which is a dihydrooxadiazinone.
REFERENCES:
patent: 3278466 (1966-10-01), Cram et al.
patent: 3888801 (1975-06-01), Hunter et al.
patent: 4097425 (1978-06-01), Niznik
patent: 4174432 (1979-11-01), Niznik
Foelak Morton
General Electric Company
Mufatti William F.
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