Daicel Chemical Industries, Ltd.

Polyplastics Co., Ltd.

Kazushi Watanabe

Takaaki Fujiwa

Tomohisa Isobe

Toshio Endo

Hiroshi Sagane

Takayuki Kuroda

Katsuhiko Sumida

Terumasa Daito

Mitsuo Wada

Akihiro Inozuka

Naoki Wakita

Hiroo Horiuchi

Masahiko Ono

Disclosed are a crosslinkable resin composition, and a molded article from the composition, a process for the preparation of the crosslinkable polymer composition, and crosslinked nonwoven cloth having a shape-memory effect and a process for the preparation thereof. The crosslinkable resin composition and the molded article of the present invention are excellent in chemical resistance.

Crosslinkable polymer composition, molded article therefrom, process for

Cross-linkable or curable polylactone composition, cross-linked or cured

Disclosed are a biodegradable polyester resin composition, and a biodegradable article molded from the composition. The polyester resin composition and the molded article of the present invention are excellent in biodegradability without any loss of mechanical properties.

Biodegradable polyester resin composition, and a biodegradable molded

A novel lactone-modified polyvinyl acetal resin and a novel carboxyl-modified resin thereof are disclosed. The novel resins of the present invention can be used as a polyol resin for coatings curable at ordinary temperatures or heating, adhesives, binders, a processing agent for fibers, a curable resin composition by mixing with a curing agent which can react to hydroxyl groups, and a composition for a magnetic recording medium, etc. The novel resins of the present invention have graft chains containing primary hydroxyl groups bonded to the ester group derived from a lactone compound, or the primary hydroxyl groups and carboxylic groups.

Curable resin composition which comprises a lactone-modified polyvinyl

Disclosed are a lactone-modified polyvinyl alcohol and a process for the preparation thereof, a polymer composition, a permanently anti-electrostatic resin composition, a lactone-modified resin having hydroxyl groups, and a process for the preparation thereof. The lactone-modified polyvinyl alcohol can be used in wide fields owing to the capability of freely adjusting the water solubility, such as water-soluble, gradually water-soluble, low water-soluble, and water-insoluble by a degree modified by lactone compounds, and owing to possessing properties both of PVA and lactones. Furthermore, the lactone-modified polyvinyl alcohol has properties such as being plasticizers or softening agents, and as a result, there can be provided a polymer composition having excellent properties by mixing with a hydrophilic polymer or polar polymer. Still further, a blend resin composition in which a variety of resins are blended with the lactone-modified polyvinyl alcohol has an excellent permanently-anti-electrostatic property, and the resin composition having a permanently-anti-electrostatic property can be preferably employed as a variety of molded articles such as parts for electric appliances, textiles, films, etc.

Lacton-modified polyvinyl alcohol and permanently anti-static resin

Disclosed are a lactone-modified polyvinyl alcohol and a process for the preparation thereof, a polymer composition, a permanently anti-electrostatic resin composition, a lactone-modified resin having hydroxyl groups, and a process for the preparation thereof. The lactone-modified polyvinyl alcohol can be used in wide fields owing to capability of freely adjusting a water solubility such as water-soluble, gradually water-soluble, low water-soluble, and water-insoluble by a degree modified by lactone compounds, and owing to possessing both properties in PVA and lactones. Furthermore, the lactone-modified polyvinyl alcohol has a property as plasticizers or softening agents, as a result, there can be provided a polymer composition having an excellent property by mixing with hydrophilic polymer or polar polymer. Still further, a blend resin composition in which a variety of resins are blended with the lactone-modified polyvinyl alcohol has an excellent permanently-anti-electrostatic property, and the resin composition having a permanently-anti-electrostatic property can be preferably employed as a variety of molded articles such as parts for electric appliances, textiles, films, etc.

Lactone-modified polyvinyl alcohol, a process for the preparation thereof

Lactone-modified polyvinyl acetal resin and process for the preparation

The present invention provides a resin composition which is lowly water-absorbent and is excellent in properties such as mechanical strength, flexibility and heat resistance while improving the compatibility of the conventional resin composition comprising a polyamide resin and a thermoplastic polyester resin, and which comprises 100 parts by weight of a mixture composed of:

Composition of polyamide, polyester and glycidyl vinylic copolymer

A molding resin composition comprises 70 to 99.5 wt. % of a mixture A comprising (a) 5 to 95 wt. % of a polyamide and (b) 95 to 5 wt. % of a thermoplastic polyester and 0.5 to 30 wt. % of a copolymer B obtained from (c) 80 to 98 wt. % of an aromatic vinyl compound, (d) 19 to 1 wt. % of alpha, beta-unsaturated carboxylic acid compound and (e) 19 to 1 wt. % of an unsaturated epoxy compound. It may further comprise (f) 50 to 10 wt. % of glass fiber.

Resin composition and copolymer

The polyester-grafted polyamide of the present invention comprises a polyamide as the backbone and a thermoplastic polyester as the graft and has a number-average molecular weight in terms of standard polymethyl methacrylate of 50,000 to 500,000 as determined by gel permeation chromatography using 1,1,1,3,3,3-hexafluoro-2-propanol. The polyester-grafted polyamide is useful as a modifier for polyesters and polyamides.

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Ohtake, Japan

Kazushi Watanabe