Mitsui Toatsu Chemicals, Incorporated

Mitsui Chemicals, Inc.

Minnesota Mining and Manufacturing Company

Atsushi Morita

Toshiaki Takahashi

Yoshihisa Gotoh

Toshiyuki Nakakura

Hiroyasu Oochi

Toshihiko Tsutsumi

Shuichi Morikawa

Katsunori Shimamura

Kayako Ito

Akihiro Yamaguchi

Masahiro Ohta

Nobuhito Koga

Kenji Sugimura

Tomohito Koba

Hiroaki Tomimoto

Masaki Amano

Masaji Yoshimura

Denis D Springer

Tooru Tanaka

Shota Abe

Toshiyuki Kataoka

Hiroyasu Kido

Kouichi Sano

Youhei Houtani

Mineo Kubo

Daniel Patrick Sheehy

Tomoaki Sato

Kazuoto Sugiyama

Hiroyuki Furukawa

Katunori Simamura

Nobuhiro Takizawa

Toshihiko Isutsumi

The present invention provides a polyolefin resin composition which is excellent in mechanical properties and dimensional stability and is particularly excellent in heat resistance, a film which is excellent in mechanical properties, dimensional stability and heat resistance because it is obtained from the polyolefin resin composition and which is particularly excellent in meltdown properties, a macroporous membrane which is excellent in permeability and shutdown properties in addition to the above properties, and uses thereof. The polyolefin resin composition of the present invention (C) comprises 85 to 50% by mass of ultrahigh-molecular weight polyethylene (A) having a specific intrinsic viscosity and 15 to 50% by mass of a polymer (B) containing a repeating unit derived from 4-methyl-1-pentene, in 100% by mass of the polyolefin resin composition (C).

Polyolefin resin composition and uses thereof

Disclosed is a poly(4-methyl-1-pentene) resin composition having an excellent balance between micropore formability and toughness, which can sufficiently form fine pores by drawing and does not cause a break during drawing. The poly(4-methyl-1-pentene) resin composition contains 0-90 parts by mass of a 4-methyl-1-pentene homopolymer (A) and 10-100 parts by mass of a 4-methyl-1-pentene copolymer (B) having a structural unit derived from 4-methyl-1-pentene and a structural unit derived from a C&#x3b1;-olefin other than 4-methyl-1-pentene. The content of the structural unit derived from a C&#x3b1;-olefin other than 4-methyl-1-pentene is 0.1-2.1% by mass relative to the total amount of the homopolymer (A) and the copolymer (B). The poly(4-methyl-1-pentene) resin composition also contains 0.1-800 ppm of a nucleator (C) relative to the total weight of the homopolymer (A) and the copolymer (B).

Poly(4-methyl-1-pentene) resin composition, film containing same, microporous film, battery separator and lithium ion battery

A resin composition containing components (A), (B), (C) and (D) wherein component (A) is a resin composition containing a thermoplastic polyimide resin, component (B) is carbon fiber, component (C) is mica, component (D) is an internal mold-releasing agent, and relative to 100 parts by weight of component (A), component (B) is from 1 to 80 parts by weight, component (C) 1 to 100 parts by weight, and component (D) is 0.1 to 50 parts by weight.

Resin composition and heat-resistant, returnable IC tray obtained by

Polyimide resin composition

A molding resin composition comprising 99.9 to 50% by weight of polyimide represented by the formula: ##STR1## and 0.1 to 50% by weight of polyether ketone resin and/or polyester resin, and more particularly comprising the polyester resin capable of forming an anisotropical molten phase at a temperature of 420.degree. C. or less, and a polyimide-based molding resin composition which comprises the said resins and other additives such as phenolic resin, fluororesin, graphite, carbon fibers, aromatic polyamide fibers, potassium titanate fibers and a crystallization accelerator, and is excellent in thermal resistance, chemical resistance, mechanical strength and processability.

Polyimide based resin composition

Polyimide based resin composition comprising cured phenolic resins and

The present invention relates to a polyimide based resin composition comprises 1 to 50 parts by weight of polyetherimide for 100 parts by weight a resin composition comprising 50 to 99 parts by weight of polyarylether ketone and 50 to 1 parts by weight of polyimide having specific structural units. The polyimide based resin compositions have excellent fatigue characteristics and creep resistance and are expected widely to apply in field of machine and automobile parts which is required permanence for mechanical strength.

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Kanagawa, Japan

Atsushi Morita