Mitsubishi Chemical Corporation

Techno Polymer Company Limited

Masahiko Nagasaka

Takeshi Ishikawa

Hayato Ogasawara

Isamu Mochizuki

Masaki Maeda

Kazuya Egawa

Kazuhiro Okamoto

Akinobu Sasaki

Yasuhiko Nabeshima

Junichiro Nitta

The present invention pertains to a carbon fiber reinforced plastic, and provides a carbon fiber reinforced plastic laminated body that is low cost and superior in moldability, mechanical characteristic balance, and impact resistance. The laminated body has three or more layers, and has the following (B) layer between two layers of a fiber reinforced resin sheet, (B) layer: A resin sheet in which the displacement, in an S-S curve waveform obtained by the following high-speed punching test, from a peak value of the test force (kN) to an 85%&#x2014;attenuation value is not less than 22 mm. High-speed punching test: Impact absorption energy is calculated by using an impact testing machine in compliance with ISO6603-2 standard. A 100 mm&#xd7;100 mm test piece is cut out from a sheet having a thickness of 2 mm. The diameter of a striker is 12 mm. the diameter of an opening section of a holding tool is 76 mm, and the impact speed is set to 5 m/sec.

Laminate

A prepreg formed from a resin and unidirectionally aligned reinforcement fibers, characterized in that: the prepreg is sheet-shaped; the prepreg has cutouts of a depth for cutting the reinforcement fibers, and includes reinforcement fibers (A) cut by the cutouts to a length of 10 to 50 mm and reinforcement fibers (B) having a length of equal to or more than 50% of the sheet length of the prepreg in the alignment direction of the reinforcement fibers; the surface area of a band section including the reinforcement fibers (B) in a plan view is 1.4% to 35.0% of the entire surface area of the prepreg in a plan view; and at least one end of the reinforcement fibers (B) is positioned at an end portion of the prepreg in the alignment direction of the reinforcement fibers.

Thermoplastic prepreg and laminate

An automobile interior part made of a thermoplastic resin composition [D] prepared by incorporating 0.1 to 8 parts by mass of a silicone oil [B] having a kinematic viscosity at 25&#xb0; C. of 10 to 100,000 cSt into 100 parts by mass of a rubber-reinforced vinyl resin [A], wherein [A] contains a diene rubber polymer [a1] and an ethylene-&#x3b1;-olefin rubber polymer [a2 ], the total amount of [a1 ] and [a2 ] is 5 to 30% by mass, and the mass ratio of [a1] to [a2], [a1]: [a2], is 10 to 85 : 90 to 15. The automobile interior part shows remarkably reduced generation of squeaking noises when members rub against each other, and this effect is maintained without deterioration even when being placed under high temperatures for a long time. The automobile interior part is also superior in impact resistance and molded appearance.

Automobile interior part with reduced squeaking noises

A thermoplastic resin composition for blow molding is disclosed, which comprises a styrene based resin composition (A) containing a graft copolymer (A-1) containing an &#x3b1;,&#x3b2;-unsaturated glycidyl ester compound, a graft copolymer (A-2) not containing an &#x3b1;,&#x3b2;-unsaturated glycidyl ester compound and a copolymer (A-3), and an antistatic agent (B). According to the thermoplastic resin composition for blow molding of the present invention, blow molded articles are provided, which are excellent not only in surface property, impact resistance and heat resistance, but also in effects of suppressing adhesion of polished powder generated in a sanding process and dust during storage until the coating process, and further, the thermoplastic resin composition for blow molding which is reduced in adhesion property to a metal and is excellent in resistance to drawdown, and blow molded articles therefrom are provided.

Thermoplastic resin composition for blow molding and blow molded articles thereof

Growing community of inventors

Tokyo, Japan

Masahiko Nagasaka