Mitsui Toatsu Chemicals, Incorporated

Daiichi Pharmaceutical Co., Ltd.

Shimizu Seiko Kabushiki Gaisha

Sachio Yokote

Yoichi Kawai

Katsumi Sekiguchi

Masami Maki

Yoshihisa Gotoh

Masaki Misumi

Masaru Abe

Takashi Miyazaki

Katsuyoshi Sasagawa

Masao Imai

Keigo Suehiro

Takatoshi Udagawa

Katsuyuki Nitta

Yoshiro Nakamura

Masahiko Kikuchi

Takeshi Imakita

Kenji Yokogi

Masatoshi Kumagai

Kazuhiko Masuda

Akira Miwa

Medicated syringe preparation

Described is a thermoplastic elastomer comprising (A) 10-90 wt. % of polypropylene having substantially a syndiotactic structure, and (B) 90-10 wt. % of an ethylene-propylene-nonconjugated diene copolymer rubber and/or ethylene-propylene copolymer rubber, said (B) having been partially crosslinked. The elastomer according to the present invention is useful for obtaining formed products, particularly automotive bumper fascias, automotive mud guards and automotive trim skin material, which are excellent not only in flexibility, rubber elasticity and mechanical strength but also in external appearance and touch, and are substantially free from bleeding and fogging.

Thermoplastic elastomer, composition therefor and production process

A polypropylene resin composition which is excellent in transparency and which shows very low pH reduction of the extract obtained in a promoted hot water-extraction test of a polypropylene resin which has been irradiated with radiant rays for sterilization. The polypropylene resin composition comprises 100 parts by weight of a polypropylene resin, 0.01 to 1.0 part by weight of a metal diarylphosphate represented by the following general formula (I): ##STR1## (wherein R.sub.1 and R.sub.2 each represents a hydrogen atom or an alkyl group; M represents an alkali metal or an alkaline earth metal; n is an integer of 1 or 2; and A represents an alkylidene group); and 0,001 to 1.0 part by weight of a hydroxide of an alkali metal, an alkaline earth metal or an element of the aluminum group. The polypropylene resin composition is suitable for use in making medical instruments, containers for foods or the like.

Polypropylene resin compositions

A method of manufacturing composite moldings by executing the following steps (a) to (f) by using an injection molding machine provided with a fixed die having a gate which is opened to a cavity forming surface and a movable die which can come into contact with and out of contact with the fixed die:

Method of forming composite moldings

A polypropylene resin composition comprising 100 parts by weight of a polypropylene resin, 0.01 to 1.0 part by weight of 1.3, 2.4-di-benzylidene sorbitol and 0.005 to 1.0 part by weight of talc. The components of the polypropylene resin composition are not guided and do not escape from the composition even when it is immersed in hot water. The composition is excellent in transparency and products obtained by blow molding of the composition are also excellent in transparency.

The present invention relates to a polypropylene composition useful as an adhesive comprising a modified polypropylene resin graft-modified with from about 0.01 wt. % to about 2 wt. % of a radical-polymerizable unsaturated compound and a crystalline propylene/ethylene block copolymer containing from about 10 wt. % to about 50 wt. % of a propylene/ethylene random copolymer having an ethylene content of from about 20 wt. % to about 90 wt. %. The resin composition is particularly suitable for bonding a polypropylene resin layer and an ethylene/vinyl alcohol copolymer layer, and a polypropylene resin layer and a polyamide resin layer.

Polypropylene composition

Resin compositions comprising a polyolefin resin and an organic compound of the general formula (I): ##STR1## wherein X represents an oxygen atom or --CH.sub.2 -- and

Polyolefin resin compositions

A polypropylene-base resin composition comprising a polypropylene-base resin and carbon black in an amount of 0.01-0.6 wt. % based on the polypropylene-base resin and being suitable for use in the production of molded articles having excellent paintability.

Polypropylene-base resin composition containing an inorganic filler and

An electrically-conductive polyolefin resin composition having excellent resin flow properties which comprises (a) a polyolefin resin, (b) sulfur, (c) a plate adhesion promoter, (d) an electrically-conductive carbon black, and (e) a flow improver.

Electrically-conductive resin composition

An electroconductive polyolefin composition comprising (1) 100 parts by weight of a polyolefin resin, (2) 10 to 60 parts by weight of carbon black, (3) 0.1 to 6 parts by weight of sulfur and (4) at least 0.1 part by weight of one or two specified accelerators, and optionally containing 5 to 60 parts by weight of atactic polypropylene.

Electroconductive resin composition

An electroconductive polyolefin composition comprising (a) 100 parts by weight of a polyolefin resin, (b) 10 to 60 parts by weight of carbon black, (c) 0.1 to 6 parts by weight of sulfur and (d) 0.1 to 5 parts by weight of trithiolcyanuric acid, and optionally containing 5 to 60 parts by weight of atactic polypropylene.

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Kanagawa, Japan

Sachio Yokote