Other

Mitsui Takeda Chemicals, Inc.

Masahiro Hakotani

Takashi Shibata

Koichi Akiyama

Hiroyuki Takahashi

Hiromu Miyashita

Osamu Kito

Kaneo Hamajima

Kazuhiro Uchida

The present invention presents an SMC with which the electrically conductive layer does not break down or become non-uniform during molding and with which molded articles with excellent electromagnetic wave shielding capability and electric conductivity can be produced. This SMC is a thermosetting resin sheet molding compound having at least one continuous layer of electrically conductive fibers with a fiber length of 50 &mgr; to 5 mm, and it is further preferred that electrically conductive powder is uniformly dispersed throughout the entire molding compound. These SMCs can be produced by impregnating a reinforcing material with a thermosetting resin composition which is combined with the above-mentioned electrically conductive fibers, or the electrically conductive fibers and electrically conductive powder, and forming at least one continuous layer of these electrically conductive fibers adjacent to this reinforcement layer.

Material for molding thermosetting resin sheet, production process, and molded product

An unsaturated polyester resin composition having excellent vibration-damping properties, comprising an unsaturated polyester resin (A) having a glass transition temperature (Tg) of 0&deg; C. or more and less than 60&deg; C. In the composition, the unsaturated polyester resin (A) may be blended with an unsaturated polyester resin (B) having a glass transition temperature (Tg) of 150&deg; C. or more and less than 200&deg; C. or an unsaturated polyester resin (C) having a glass transition temperature (Tg) of 200&deg; C. or more. Further, the composition may contain an elastomer (D) having a glass transition temperature (Tg) of &minus;50&deg; C. or more and less than 100&deg; C. Since the unsaturated polyester resin composition has excellent vibration-damping properties and moldability in a wide temperature range, it is very useful to provide molded articles such as vibration-damping structural components, especially automobile engine-related components, having excellent heat resistance and chemical resistance as well as having excellent vibration-damping properties and moldability.

Resin composition having excellent vibration-damping properties and molded article made thereof

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Kamakura, Japan

Masahiro Hakotani