Toyoda Gosei Co., Ltd.

Toyo Boseki Kabushiki Kaisha

Katsushi Ito

Junji Koizumi

Haruyasu Mizutani

Koichi Ogiso

Kiyoshi Suenaga

Mitsuhiro Isomichi

Chiharu Totani

Katsuhiro Katagiri

Daiichiro Kawashima

Shigeru Yabuya

Masao Kobayashi

Hiroyuki Nakagawa

Hiroshi Mukai

Tomohide Nakagawa

Tetsumi Ichioka

Masato Kobayashi

Gaku Maruyama

Daisuke Tsutsumi

Sadao Nada

Tsutomu Tamura

Koichi Sato

Takehiko Shiraki

Muneo Furutani

Shoji Kouketsu

Haruyasu Mitzutani

Jiro Asano

Takuo Yamauchi

A resin composition is provided which is improved in fluidability, stiffness and impact resistance and therefore can achieve the reduction in wall thickness of a resin product for automotive interior/exterior applications comprising a polypropylene resin; and a resin product produced from the resin composition. The resin composition comprises 30 to 65 mass % of an ethylene-propylene block copolymer having a melt flow rate of 60 to 120 g/10 minutes and a Charpy impact strength of 3 kJ/mor more; 0 to 25 mass % of a homopolypropylene resin having a melt flow rate of 10 g/10 minutes or more and a modulus of elasticity of 2000 MPa or more; 5 to 20 mass % of an ethylene-&#x3b1;-olefin copolymer rubber having a Mooney viscosity of 20 to 75 or a styrene-ethylene butylenes-styrene copolymer having a styrene component content of 15 to 30 mass %; and 23 to 37 mass % of talc having an average particle diameter of 8 &#x3bc;m or less.

Resin composition and resin product

While comprising filled minor compartments being filled with an inclusion in which a liquid makes the major component, and vacant minor compartments being filled with the air, at least one of the vacant minor compartments adjoins the filled minor compartments, and a fragile section is formed in at least one of ribs that demarcate the filled minor compartments and the adjoining vacant minor compartments. After the fragile section has fractured, shock energy can be absorbed furthermore by means of circulation resistance to the inclusion that flows from the filled minor compartments to the vacant minor compartments.

Shock absorbing apparatus

The polylactic acid based resin molded article is a molded article formed from a polylactic acid based resin composition comprising a polylactic acid based resin (A), a polypropylene (B) having a crystallinity of 20% by weight or less and a modified ethylene-&#x3b1;-olefin copolymer (C1) or a modified polyolefin (C2), wherein a treatment for accelerating crystallization of the polylactic acid based resin (A) is applied thereto. In the polylactic acid based resin composition, the polypropylene (B) having a crystallinity of 20% by weight or less is blended in an amount of from 10 to 90 parts by weight based on 90 to 10 parts by weight of the polylactic acid based resin (A). In addition, the modified ethylene-&#x3b1;-olefin copolymer (C1) or the modified polyolefin (C2) is blended in an amount of from 1 to 20 parts by weight based on 100 parts by weight in total of the polylactic acid based resin (A) and the polypropylene (B) having a crystallinity of 20% by weight or less.

Polylactic acid based resin molded articles

A material for fuel-system parts which is excellent in impact strength, rigidity, elongation, unsusceptibility to swelling with liquid fuels including gasoline, and gasoline-barrier properties and has satisfactory moldability. The material for fuel-system parts comprises a resin composition comprising 100 parts by weight of a given polyamide resin (A) and 11 to 100 parts by weight of a resin (B) having a lower glass transition temperature than the polyamide resin (A) and having a functional group reactive with the polyamide resin (A), and has a structure in which the polyamide resin (A) serves as a matrix ingredient and the resin (B) serves as a domain ingredient.

Material for fuel-system part and fuel-system part comprising the same

To provide a method for producing a molded crystalline resin article which enables a higher crystallization degree and to mass-produce the molded crystalline resin articles. The method comprises molding a molded resin article from a thermoplastic resin containing a crystalline resin followed by performing a heating process to obtain a molded crystalline resin article having a surface layer whose crystallization index is 0.9 or higher when determined by IR spectrometry. It is preferable that the temperature of the heating process is within the range of 20&deg; C. lower than the crystallization temperature of the molded resin article to 30&deg; C. higher than the crystalline temperature, and that the crystalline resin is a polypropylene resin.

Method for producing molded crystalline resin article

A decorative tape adhesive molding in which a decorative tape are integrally fusion-bonded to a molding body. A molding body forming material is a non-polar TPE composition, the decorative tape is constituted by a transparent film layer, a backing layer, and a decorative portion layer interposed therebetween. The backing layer forming material is a resin composition containing the same kind of resin polymer as a hard phase-forming polymer of the non-polar TPE or containing a resin polymer having a melting point of not lower than 100&deg; C. and capable of being fusion-bonded to the hard phase-forming polymer of the non-polar TPE.

Decorative tape adhesive molding

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

The present invention relates to a high gloss molded resin exhibiting high gloss, metallic luster, excellent weather-proofing and scratch resistance properties comparable to those of a coated product, thus eliminating a coating process; the high gloss molded resin comprising a core layer and a skin layer, the core layer formed of a polypropylene composite material, the skin layer formed of a mixture of a polypropylene resin and a coloring agent; the polypropylene resin used for the skin layer containing an amount of ethylene 6 wt. % or less, as well as exhibiting Rockwell hardness equal to or greater than 85.

High gloss molded resin

Growing community of inventors

Aichi-ken, Japan

Katsushi Ito