Kuraray Co., Ltd.

Shiroh Kishii

Masao Ishii

Makoto Nishikawa

Yoshio Hirayama

Kazushige Ishiura

Hiromichi Nakata

Kazuhiko Maekawa

Hiroshi Hayashihara

Masanari Uno

Shigeru Kawahara

Atsushi Ohishi

Atsushi Itoh

Isamu Akiba

A thermoplastic polymer composition is provided that includes 100 parts by weight of a block copolymer and/or its hydrogenate having polymer blocks of an aromatic vinyl compound and polymer blocks of a conjugated diene compound, and from 5 to 95 parts by weight of a block copolymer having polymer blocks of an aromatic vinyl compound and/or an olefinic compound and polymer blocks having a constitutional unit derived from a (meth) acrylic compound, a laminate containing a layer of the composition, and a hot-melt adhesive that includes the composition. Because it has good melt adhesiveness, the composition of the invention can firmly adhere in melt to various polar or non-polar materials. Using the composition, it is easy to produce laminates having a layer of the composition and a layer of some other material, through melt shaping or any other melt adhesion techniques. Since the composition of the invention is satisfactorily elastic and flexible, the laminates having a layer of the composition on their surface are flexible and elastic and have a good feel, and, in addition, they are safe because of their shock absorbability and cushionability.

Thermoplastic polymer composition having a thermoplastic elastic polymer

There is disclosed a resin composition which comprises:

Resin composition

A thermoplastic polymer composition comprises:

Thermoplastic polymer composition

A thermoplastic polymer composition comprises: a thermoplastic polymer (a) having polarity on the main chain of the molecule thereof, and a modified block copolymer (b) of a block copolymer comprising: at least one polybutadiene block (B) having a degree of vinylization of not more than 30%, and at least one polymer block (D) comprising units from isoprene and butadiene in a ratio by weight of isoprene/butadiene of 30/70 to 100/0 and having a degree of vinylization of not more than 30%, said polybutadiene block (B) and said polymer block (D) each has a degree of unsaturation of not more than 30%, to said block copolymer a molecular unit containing a carboxyl acid group or derivatives thereof having added, the ratio by weight between said component (a) and said component (b), (a)/(b), being in a range of 2/98 to 98/2.

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Ibaraki, Japan

Shiroh Kishii