Kuraray Co., Ltd.

Idemitsu Petrochemical Co., Ltd.

Katsunori Takamoto

Takashi Yamashita

Shinichi Yokota

Kazushige Ishiura

Kenichi Hamada

Haruhisa Masuda

Hiromichi Nakata

Shunro Taniguchi

Takashi Umeda

Yukihiro Fujieda

Toru Kuki

Kenji Okuno

Syuichi Kanao

Akihiro Mochizuki

Katsuei Takahashi

Takashi Ohnaga

Kazuo Hara

Shigeru Kawahara

Seiichi Zemba

Syunji Kaneda

Polymer blend

There is provided a thermoplastic polymer composition containing (i) 100 parts of a block copolymer comprising an aromatic vinyl block and a conjugated diene block, (ii) 5 to 200 parts of a polyurethane block copolymer having a thermoplastic polyurethane block, (iii) 10 to 300 parts of a thermoplastic polyurethane and (iv) 10 to 300 parts of a paraffin oil.

Thermoplastic polymer composition

A thermoplastic resin molded article having gloss of at least one surface above 80%, a storage modulus in common logarithm being 7 to 8 MPa within a temperature range higher by 20.degree. C. to 100.degree. C. than the glass transition temperature, a cooling distortion ratio of 1.0 kg/cm.sup.2 .multidot..degree.C. or less when the molded article is cooled from 130.degree. C. to 50.degree. C. and an Izod impact strength of 2.0 kj/m.sup.2 or more, is provided, together with a thermoplastic resin composition containing a polybutylene terephthalate resin, a polyethylene terephthalate resin, a (metha)acrylic resin, a polymer particle of a multi-layer structure and an inorganic filler, which composition is used for producing the molded article.

Thermoplastic resin molded article

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

The present invention relates to a novel copolymerized composition characterized in that it comprises (A) 100 parts by weight of a copolymerized polyester containing (a) an aromatic dicarboxylic acid unit composed mainly of a terephthalic acid unit, (b) a glycol unit composed mainly of an ethylene glycol unit, (c) a polytetramethylene glycol unit, (d) a polyethylene glycol unit and (e) an aliphatic dicarboxylic acid unit having 9 or more carbon atoms, (B) 5 to 150 parts by weight of a reinforcing substance and (C) 1 to 10 parts by weight of a metal salt of an ionic copolymer. The copolymerized polyester compositions of the present invention retain excellent heat resistance and rigidity that the glass fiber-reinforced polyethylene terephthalate compositions possess originally and are considerably improved in terms of low-temperature moldability, toughness, alkali resistance and like other factors.

Copolymerized polyester compositions

Polyester resin compositions exhibiting excellent impact resistance and moldability are disclosed comprising:

Polyester resin compositions

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Tsukuba, Japan

Katsunori Takamoto