Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1980-12-29
1982-08-03
Pertilla, Theodore E.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525422, 525456, 525497, 525498, 525501, C08L 6302
Patent
active
043428525
ABSTRACT:
Disclosed is a setting type resin composition comprising (A) a setting type resin and (B) 10 to 200 parts by weight, per 100 parts by weight of said resin (A), of a substantially linear, high-molecular-weight novolak type substituted phenolic resin which comprises a constituent phenol component comprised mainly of a bifunctional phenol and has a number average molecular weight of at least 1500. This resin composition has highly improved heat resistance and mechanical strength characteristics by virtue of incorporation of the high-molecular-weight novolak type substituted phenolic resin, and this improving effect is especially prominent when an epoxy resin is used as the setting type resin.
REFERENCES:
patent: 4260704 (1981-04-01), Schmidt et al.
Iwata Tadao
Takeda Nobuyuki
Mitsui Petrochemical Industries Ltd.
Pertilla Theodore E.
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