Chemistry of carbon compounds – Miscellaneous organic carbon compounds
Patent
1980-01-04
1981-09-22
Seccuro, Carman J.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
525 36, 525 39, 525 40, 260 22CB, 260 457R, 260 457P, 260 4575B, C08K 340, C08L 6706
Patent
active
042909384
ABSTRACT:
A thermosetting injection molding compound comprising a specific crystalline unsaturated polyester comprising (A) a crystalline unsaturated polyester of terephthalic acid/fumaric acid=5/5-1/9 by mol (acid component) and 1,4-butanediol/other glycol=7/3-10/0 (glycol component) and (B) a styrene type monomer and/or allyl type monomer, and having specific ranges of a viscosity, a melting point and an acid value, said crystalline unsaturated polyester resin being admixed with (C) a glass fiber and (D) other additives in a specific ratio. The thermosetting injection molding compound has no tackiness and has excellent flowability and mold filling properties and can give an excellent molded product having good appearance without flow marks, surge or the like, and hence, the thermosetting injection molding compound of the present invention is particularly suitable for the preparation of electric, electronic and automobile parts which require excellent heat resistance, electrical characteristics and fire retardant properties.
REFERENCES:
patent: 3922247 (1975-11-01), Hazen et al.
patent: 3923927 (1975-12-01), Miyake et al.
patent: 3926902 (1975-12-01), Bowen
Hara Mamoru
Miyake Hideo
Sakamoto Jun-ichi
Sawaki Masakazu
Seccuro Carman J.
Toyo Boseki Kabushiki Kaisha Co., Ltd.
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