Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Cellular products or processes of preparing a cellular...
Patent
1997-07-29
1998-07-28
Foelak, Morton
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Cellular products or processes of preparing a cellular...
521134, 521138, 521180, 521183, 521189, G08J 902
Patent
active
057863970
ABSTRACT:
Molding compositions or mixtures comprising a high-temperature-resistant polymer and at least one polymer containing sulfoxide groups are used for the production of a foam by exposure to heat. The foam is employed for heat-resistant insulating layers.
REFERENCES:
patent: 4940733 (1990-07-01), Kuphal et al.
patent: 5486543 (1996-01-01), Shinada et al.
patent: 5708041 (1998-01-01), Scheckenbach et al.
Scheckenbach Helmut
Schonfeld Axel
Weis Siegfried
Foelak Morton
Hoechst Aktinegesellschaft
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