Mitsui Chemicals, Inc.

Masahiro Enna

Akihiro Matsuda

Satoshi Ikeda

Keiji Okada

Masao Imai

Atsuo Otsuji

Hosei Shinoda

Tomoaki Matsugi

Shigenobu Ikenaga

Shigekazu Matsui

Shinichi Kojoh

Hiroshi Naruse

Osamu Kohgo

Mitsuo Nakamura

Nobuo Kawahara

Naoshi Nagai

Shingo Matsuo

Junichi Mohri

Hideyuki Kaneko

Fumio Kageyama

Takeshi Kashima

Takayuki Onogi

Hayato Kurita

Yoshiki Shimokawatoko

Kazuyoshi Kaneko

Yuichi Matsuda

Hideki Mochizuki

Toshiyuki Isaka

Kazutoshi Fujihara

Yasuhito Tsugane

Tatsuya Enomoto

Nobuo Murase

Yoshiaki Aso

Ryoichi Seki

A thermoplastic elastomer composition obtained by dynamically crosslinking an ethylene/&#x3b1;-olefin/non-conjugated polymer copolymer (A), a polyolefin resin (B), a softener (C) in an amount of 1 to 200 parts by mass per 100 parts by mass of the total of the copolymer (A) and the resin (B), and a crosslinking agent (D) by the use of a batch mixer under the conditions satisfying the requirements (1) to (4).

Thermoplastic elastomer composition and production process for the same

The present invention is a polyolefin polymer containing vinyl groups at both ends thereof, and a composition and a molded product containing the polymer, wherein the polymer contains a constitutional unit derived from at least one selected from the group consisting of ethylene (a), an &#x3b1;-olefin (b) having 3 to 20 carbon atoms, and a cyclic olefin (c), and The polymer of the present invention may be molded by a LIM molding, an injection molding, a transfer molding, a compression molding, and the like, and is excellent in acid resistance, gas permeation resistance, hydrolysis resistance, and dynamic fatigue resistance. From the polymer, a thermoplastic resin composition and a crosslinkable resin composition, and a crosslinked composition having excellent mechanical characteristics are obtained.

Polyolefin polymer containing vinyl groups at both ends and composition thereof

A modified polyolefin resin comprising a copolymer having a structure that a propylene-based polyolefin segment (a) and a segment (b) containing a lactic acid as a constituent are bonded in a block state and/or a graft state through a vinyl monomer having a hydroxyl group, wherein a number average molecular weight of the propylene-based polyolefin segment (a) is from 1,000 to 100,000, a number average molecular weight of the segment (b) containing lactic acid as a constituent is from 1,000 to 200,000, and a weight composition of the propylene-based polyolefin segment (a) and the segment (b) containing lactic acid as a constituent is from 10/90 to 90/10. The modified polyolefin resin can be used in a resin composition containing an aliphatic polyester resin (A), a polyolefin resin (B) and the modified polyolefin resin (C). The composition can exhibit excellent heat resistance and impact resistance and can be used for molding various parts.

Aliphatic polyester resin composition containing copolymer

A copolymer containing a constituent unit derived from ethylene and a constituent unit derived from an &#x3b1;-olefin having 3 to 20 carbon atoms and satisfying the following requirements (1) to (5): (1) the copolymer has a melting point (Tm) of &#x2212;20&#xb0; C. to 100&#xb0; C.; (2) the melting point (Tm) and the density D (g/cm) satisfy the following expression Tm&#x2267;1073&#xd7;D&#x2212;893 (1); (3) the copolymer has a molecular weight distribution (Mw/Mn) measured by GPC of 1.6 to 5.0; (4) the copolymer has a half-width (&#x394;Thalf) of a melting peak measured by DSC of 90&#xb0; C. or less; and (5) the half-width (&#x394;Thalf) and the melting point (Tm) satisfy the relationship shown by the following expression&#x394;Thalf&#x2266;&#x2212;0.71&#xd7;Tm+101.4&#x2003;&#x2003;(2).

Copolymer, lubricating oil viscosity modifier, and lubricating oil composition

A photopolymerizable composition comprising a polymerizable compound and a photopolymerization initiator, wherein the polymerizable compound is characterized by comprising (a) a bifunctional (meth)acrylic acid (thio)ester compound containing a sulfur atom in the molecule and (b) at least one of a (meth)acrylic acid ester compound represented by the general formula (1) or a bifunctional (meth)acrylic acid ester compound having a urethane linkage: 

Photopolymerizable composition and use thereof

Production process of bisphenol compounds

Growing community of inventors

Ichihara, Japan

Masahiro Enna