Toyoda Gosei Co., Ltd.

Mitsuhiro Isomichi

Junji Koizumi

Haruyasu Mizutani

Masato Kobayashi

Katsushi Ito

Masahiro Takimoto

Takuo Yamauchi

Toshio Yuge

Ikutaro Iizuka

Mayumi Maeda

Haruyasu Mitzutani

Jiro Asano

The object of the present invention is to provide a colored resin composition having a uniform glitter feeling, which can prevent flow mark formation. In a resin composition molded by using a thermoplastic resin composition in which glitter material is mixed into a synthetic resin, said resin molded article must have a molding ratio L/T is not less than 100, wherein T is the thickness of the molded article and L is a distance from a gate position at molding to a remotest position on the molded article, and wherein said glitter material has average particle size d of 10 &mgr;m<d&lE;200 &mgr;m.

Resin molded article

A glitter resin molded material provided having a glitter feel which is equivalent of a coated material. This glitter resin molded material comprises a skin layer molded to a surface of a core layer wherein the core layer contains a color pigment and a synthetic resin and the skin layer contains a glitter material, color pigment and a synthetic resin. The skin layer has a value of CR (Contrast Ratio) of less than 99% therein.

Glitter resin molded material

A resin composition is disclosed, comprising a thermoplastic resin and a brightening agent, wherein the brightening agent is a scaly brightening agent having an average particle size of from 10 to less than 20 .mu.m and is added in an amount of of from 1 to 8 parts by weight per 100 parts by weight of the thermoplastic resin; or the brightenng agent is a scaly brightening agent having an average particle size of from 20 to 50 .mu.m and is added in an amount satisfying the relationship S.ltoreq.5A+15 (wherein S is the average particle size thereof (.mu.m) and A is the addition amount (parts by weight) of the brightening agent per 100 parts by weight of the thermoplastic resin). The resin composition and the resin molded product obtained therefrom give an excellent bright-feeling because the decrease of appearance quality caused by the extraordinary orientation of a scaly brightening agent is minimized.

Resin composition and resin molded product

Provided is weld-obscuring, thermoplastic resin composition which when suitably molded substantially obscures the appearance of weld lines. The resin composition is made of a thermoplastic resin, about 0.01 to about 15.0 wt. % of a weld-obscuring agent having a refractive index greater than the refractive index of the thermoplastic resin in the visible light range, and about 0.1 to about 8 wt. % of glitter material having an average particle size in the range of about 5 to about 120 .mu.m. X is between (10.6-(Y/11.4 .mu.m)) wt. % and about 0.1 wt. % when Y.gtoreq.30 .mu.m, and when Y is&lt;30 .mu.m, X is between about 0.1 wt. % and about 8 wt. %, wherein X is the amount of glitter material added and Y is the average particle size of the glitter material. Also provided is a molded article made of the resin composition.

Weld-obscuring thermoplastic resin composition and a molded article

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Takatsuki, Japan

Mitsuhiro Isomichi