Kuraray Co., Ltd.

Syuichi Kanao

Kazushige Ishiura

Takashi Yamashita

Hiroyuki Shimo

Tatsuya Oshita

Hiromichi Nakata

Hisao Yoneda

Yukiatsu Komiya

Shigeki Takada

Yasuhiko Haneda

Katsunori Takamoto

Goki Uehara

Naoki Kawakami

Kanenori Ito

Syunji Kaneda

Yoshiki Takeda

Nobuhisa Senda

The sheet material produced in accordance with the invention has soft and enriched texture like natural leather and is suitable as any type of artificial leather for shoes, clothes, gloves and the like, particularly for sports gloves.

Article in a sheet form and method for preparation thereof

A vinyl alcohol polymer composition (II) is produced by a process of providing a reaction liquid comprising a solution containing a vinyl carboxylate polymer and, a first metal alkoxide (I) having at least one functional group and/or an oligomer (I) having at least one functional group obtained from said metal alkoxide (I); a step of simultaneously effecting (a) saponification of said vinyl carboxylate polymer and (b) reaction in which at least part of the functional groups of said metal alkoxide (I) and/or said oligomer (I) participates, thereby obtaining a vinyl alcohol polymer composition (I); and a step of preparing a solution (A) containing said vinyl alcohol polymer composition (I), followed by adding to the solution (A) a second metal alkoxide (II) and/or an oligomer (II) obtained from the metal alkoxide (II) or another solution (B) containing the metal alkoxide (II) and/or the oligomer (II) derived from the metal alkoxide (II), to prepare an intermediate product solution (C), and then removing the solvent from said solution (C). The vinyl alcohol polymer composition obtained by the above process has excellent gas-barrier properties, in particular excellent gas-barrier properties under high-humidity conditions. The vinyl alcohol polymer composition is suitably usable as a coating agent having good storage stability and little uneven applicability, and as gas-barrier material, in particular laminate having excellent gas-barrier properties under high-humidity conditions.

Process for producing vinyl alcohol polymer compositions

A resin composition comprising (A) an ethylene-vinyl alcohol copolymer, (B) a polyamide resin, (C) an ethylene-unsaturated carboxylic acid random copolymer or its metal salt, and (D) a thermoplastic resin except the resins noted above, of which the solubility parameter (as calculated from the Fedors' formula) is not more than 11. The resin composition has good compatibility, excellent barrier properties, mechanical strength, flexibility, drawability, melt stability, scrap recyclability, heat sealability, coatability, stain resistance and transparency.

Resin composition

A resin composition containing (A) a thermoplastic polyurethane; (B) a polymer having a hydroxyl group at the end of the molecular main chain, the main chain principally comprising a conjugated diene compound unit (I) which may or may not be hydrogenated and an aromatic vinyl compound unit (II); and (C) a polyacetal resin, at ratios of (A), (B) and (C) being 2.5 to 90% by weight, 2.5 to 90% by weight and 5 to 95% by weight, respectively, on the basis of the total weight of the (A), (B) and (C), is excellent in terms of tensile strength and tensile elongation, and impact resistance at ambient temperature and lower temperatures.

Resin composition and molded article of the same

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Okayama, Japan

Syuichi Kanao