UNSATURATED POLYESTER RESIN COMPOSITION AND SWITCHED RELUCTANCE MOTOR

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United States of America Patent

SERIAL NO

15511274

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Abstract

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The present invention provides an unsaturated polyester resin composition for producing a molding resin for use in a switched reluctance motor. The unsaturated polyester resin composition comprises an unsaturated polyester, a crosslinking agent, a curing agent, a low profile additive, a filler, and a reinforcing fibrous material. The content of the filler is from 100 parts by mass to 800 parts by mass with respect to 140 parts by mass of the total of the unsaturated polyester and the crosslinking agent. The filler comprises one or more fillers (filler A) selected from the group consisting of calcium carbonate, glass, silica, talc, clay, barium sulfate, calcium silicate, titanium oxide, and a hollow filler and one or more fillers (filler B) selected from the group consisting of aluminum hydroxide and alumina. The mass ratio of filler B to filler A is 1 or more. The unsaturated polyester resin composition of the present invention is optimal for producing a molding resin for use in a switched reluctance motor, the molding resin barely causing void formation upon sealing, effectively preventing vibration of stator salient poles, and barely generating cracks when vibration and heat are generated during motor operation.

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Patent Owner(s)

Patent OwnerAddress
SHOWA DENKO K K13-9 SHIBA DAIMON 1-CHOME MINATO-KU TOKYO 1058518 ?1058518

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
ISHIUCHI, Ryujin Tokyo, JP 6 0

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