Sumitomo Chemical Company, Limited

Industrial Technology Research Institute

Takashi Sakurai

Mitsunori Nodono

Hideki Oshima

Junichi Ikeuchi

Katsunori Mochizuki

Chyi Ming Leu

Boram Pyeon

Tzong Ming Lee

Chih Cheng Lin

A resin filmcomprising a polyimide-based polymer is disclosed. The resin filmhas a tensile elastic modulus of 4.0 GPa or more. In a bending test where the resin filmis repeatedly folded into a U-shape until the distance between the resin film faces opposed to each other reaches 3 mm, and unfolded, the number of times of folding the resin filmuntil the resin filmfractures is more than 100000.

Resin film, laminate, optical member, gas barrier material and touch sensor substrate

Provided is a resin article containing a propylene resin having a crystalline phase and a non-crystalline phase, wherein the propylene resin shows, in its scattering profile measured at a temperature of 155&#xb0; C. to 165&#xb0; C. by small-angle X-ray scattering method, a plurality of scattering peaks. This resin article can be produced by a method including a step of shaping a propylene resin containing a polypropylene having an intrinsic viscosity of 6.0 dl/g or more in an amount of 5% by weight to 40% by weight to produce an article precursor, and a step of heating the article precursor at 150&#xb0; C. to 170&#xb0; C.

Resin article and process for producing the same

Growing community of inventors

Tsukuba, Japan

Takashi Sakurai