Sumitomo Chemical Company, Limited

Other

Toyota Jidosha Kabushiki Kaisha

Satoru Moritomi

Mitsuyoshi Shimano

Takashi Sanada

Masatoshi Iji

Yoshihiro Nakatsuji

Hiroyuki Sugimoto

Hideki Oshima

Yuichi Miyake

Yuji Gotoh

Takafumi Iwata

Takuya Nishimura

Yasuo Tatsumi

Shinichiro Nagai

There is provided a method for producing a resin composition which is good in dispersability of a biodegradable resin. This method has a first kneading step of kneading (A) a biodegradable resin and (B) a compound that is reactive with the biodegradable resin (A) to produce a resin composition precursor, and a second kneading step of kneading the resin composition precursor and a polyolefin resin (C).

Method for producing resin composition and molded article

A propylene-based resin molded article satisfying the following requirements (1) through (4):

Propylene-based resin molded article and method for producing the same

This invention provides a resin composition comprising a polyolefin-based polymer and an aliphatic polyester-based polymer, which has an excellent balance of impact resistance and rigidity and excellent properties, such as processability. The resin composition comprises a polyolefin-based polymer (A), an aliphatic polyester-based polymer (B), an elastomer (C), which has a melt flow rate (MFR), measured at 190&#xb0; C. under a load of 21N, of 0.5 to 3.0 g/10 minutes, and an epoxy group-containing polyolefin-based polymer (D).

Resin composition and molded article using the same

Disclosed are processes for producing polypropylene resin compositions including two or three sorts of propylene-based polymeric materials, the processes including a first step of melt-kneading at least a propylene-&#x3b1;-olefin block copolymer containing a polymer portion composed mainly of propylene and a propylene-&#x3b1;-olefin copolymer portion having a relatively high intrinsic viscosity and a second step of melt-kneading the product of the first step with a propylene-ethylene block copolymer containing a polymer portion composed mainly of propylene and a propylene-ethylene copolymer portion having a relatively low intrinsic viscosity or a polymer portion composed mainly of propylene having a relatively low intrinsic viscosity. In the composition produced by these processes, no or substantially no fish eyes develop.

Process for producing propylene resin composition

Disclosed is a method for producing a thermoplastic resin composition, the method including a first step of melt-kneading 100 parts by weight component (A) and from 15 to 200 parts by weight of component (B) to form a melt-kneaded material, and a second step of melt-kneading from 35 to 2300 parts by weight of additional component (B) with the melt-kneaded material formed in the first step, wherein component (A) is an elastomer having a melt viscosity, as measured at a temperature of 230&#xb0; C. and a shear rate of 121 sec, of 1500 Pa&#xb7;s or more and the component (B) is a polyolefin resin.

Method for producing a thermoplastic resin composition

Polyphenylene ether resin composition

Thermoplastic resin, process for producing same and thermoplastic resin composition

Thermoplastic elastomer composition and molded article comprising the

Growing community of inventors

Chiba, Japan

Satoru Moritomi