Mitsui Petrochemical Industries, Ltd.

Yoshino Kogyosho Co., Ltd.

Japan Atomic Energy Research Institute

Mitsui Chemicals, Inc.

Arakawa Chemical Industries, Ltd.

Mitsui Petrochemical Industries Co., Ltd.

Mikio Nakagawa

Masaharu Mito

Koichiro Sato

Hideshi Kawachi

Fumio Yoshii

Keizo Makuuchi

Hideo Kushida

Masanobu Ishiyama

Yasuo Futami

Kuniaki Kanemoto

Takahiro Kurihara

Sei Nakajima

Akito Nishimura

Gen Miyamoto

Ryoji Sugawara

Mineo Kubo

Hideki Sakai

Tetsuji Kasai

Akifumi Kato

Masao Maeda

Yukiharu Yamada

Kunio Furutachi

Shunji Arita

Kimio Ueda

Junji Tan

Kan Matsumoto

Hiroyuki Hori

Masaru Nakano

Aikich Yamamoto

Adhesive composition and adhesive composition-applied laminate

A crystalline thermoplastic resin composition comprises a rosin acid metallic salt and a crystalline thermoplastic resin. Optionally, a compatibilizing agent may also be included. The rosin acid metallic salt, which acts as a crystal nucleating agent, increases the crystallization rate of the crystalline thermoplastic resin and enables the formation of fine crystals of the resin. Thus, the crystalline thermoplastic resin composition can crystallize at a high rate, and provide molded articles having excellent mechanical properties and/or optical properties.

Process for crystal nucleation of crystalline thermoplastic resin

A squeezable tubular container (a) which is formed from a composition containing a polyethylene having a density of 0.900 to 0.975 g/cm.sup.3 and an ethylene/.alpha.-olefin copolymer having a density smaller than 0.900 g/cm.sup.3, (b) has a crosslinking caused under irradiation with electron beam, and (c) is sterilizable at a high temperature or is heat-sealable or ultrasonically sealable; and a process for the production thereof.

Squeezable tubular container and process for the production thereof

An adhesive resin composition comprising an ethylene/vinyl acetate copolymer, a styrene polymer resin, graft-modified polyethylene, a polystyrene elastomer and an ethylene/.alpha.-olefin copolymer in combination is disclosed. This adhesive resin composition shows an excellent adhesiveness between a metal and a thermoplastic resin. When this adhesive resin composition is used for bonding a polyester resin and a gas-barrier resin, a good bonding which is not degraded even by high-temperature heating can be attained.

Retortable packaging laminate structure with adhesive layer

Adhesive resin composition, laminate comprising this composition as

An adhesive resin composition comprising 1 to 30 parts by weight of a graft copolymerized polypropylene grafted partially or totally with 0.01 to 15 weight % of an unsaturated carboxylic acid or its derivatives and 100 parts by weight of a soft polymer, wherein the soft polymer is a styrene elastomer.

In accordance with the present invention, there are provided an adhesive resin composition comprising

Adhesive resin compositions and laminates utilizing same

A laminated structure comprising, laminated in the order stated,

Laminated structure

Adhesive resin composition

An acetal resin composition comprising (A) an acetal resin and (B) 1 to 200 parts by weight, per 100 parts by weight of the acetal resin (A), of at least one modified alpha-olefin polymer, said modified alpha-olefin polymer (B) being a graft-copolymerization product of 100 parts by weight of an alpha-olefin polymer and 0.01 to 10 parts by weight of an unsaturated carboxylic acid or its derivative.

Acetal resin composition

An improved process for preparing an impact-resistant chemically blended propylene polymer or copolymer, which comprises the following three steps: (1) a first step of polymerizing propylene containing 0 to 1 mole% of another olefin in the presence of a catalyst composed of (a) a carrier-supported titanium catalyst component containing at least magnesium, halogen and titanium on the surface of the carrier and (b) an organo aluminum compound to form specific crystalline polypropylene; (2) a second step of copolymerizing propylene and ethylene in the presence of the reaction product of the first step and the same catalyst while maintaining the content of propylene in the gaseous phase of the polymerization zone at 65 to 90 mole% thereby to form specific low-crystalline propylene/ethylene copolymer; and (3) a third step of polymerizing ethlene, or both ethylene and propylene in the presence of the reaction product of the second step and the same catalyst while maintaining the content of propylene in the gaseous phase of the polymerization zone at 0 to 15 mole% thereby to form specific polyethylene or ethylene/propylene copolymer.

Impact-resistant chemically blended propylene polymer composition and

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Hiroshima, Japan

Mikio Nakagawa