Mitsubishi Petrochemical Company Limited

Mitsubishi Chemical Corporation

Mitsubishi Yuka Fine Chemicals Co., Ltd.

Toyota Jidosha Kabushiki Kaisha

Kyowa Leather Cloth Co., Ltd.

Oji Yuki Goseishi Co., Ltd.

Mitsubishi Yuka Fine Chemical Co.

Takao Yazaki

Masataka Noro

Kazuhide Hattori

Kazuhide Hayama

Takashi Matsui

Satoru Hattori

Noritaka Hosokawa

Noriyuki Kobayashi

Isao Itoh

Hironari Sano

Koji Yamamoto

Akihiko Egashira

Takumi Matsuno

Takao Nomura

Takeyoshi Nishio

Koji Nishida

Nobuhiro Shibuya

Toshikazu Mizutani

Junji Mayumi

Takashi Toyoda

Yasuji Hosono

Takashi Funato

Yukio Saito

Tetsuzi Kakizaki

Takumi Matuno

Tokmi Chiba

Mie Toyoda

Ichiro Nishi

Yukio Okishio

Tatsuo Yamamoto

Takao Usami

Hideki Hattori

Kazumasa Fujimura

Isao Ito

There is provided a sheet-shaped product of a thermoplastic elastomer provided with an embossed pattern on the surface thereof, comprising as a base material a component (II) comprising a thermoplastic elastomer, said elastomer being obtained by subjecting a composition (I) comprising the following components (A) and (B) to dynamic heat treatment carried out in the presence of an organic peroxide: component (A): from 10 to 75% by weight of an olefin resin containing 50 to 100% by weight of a crystalline propylene polymer resin, and component (B): from 90 to 25% by weight of an olefin copolymer rubber containing 10 to 100% by weight of an olefin-propylene copolymer rubber whose propylene content is from 65 to 90% by weight.

Sheet-shaped product of thermoplastic elastomer

A laminated resin film having a thickness of from 7 to 25 .mu.m comprised of (A) a poly(4-methylpentene-1) resin layer having a thickness of from 1 to 10 .mu.m having laminated on one or both sides thereof (B) a crystalline propylene copolymer resin layer comprising from 1 to 10% by weight of ethylene, from 74 to 96% by weight of propylene, and from 3 to 25% by weight of an .alpha.-olefin containing from 4 to 8 carbon atoms and having a thickness of from 2 to 20 .mu.m, provided that the total thickness of layers (B) when provided on each side of layer (A) is in the range of from 4 to 20 .mu.m. The laminated film has excellent cutting properties and high heat resistance sufficient for use in microwave cooking.

Laminated resin film

A process for producing an oriented blown film of a thermoplastic resin by blown film extrusion, carried out by blowing air into an extruded bubble of the resin extruded from a ring die to expand the bubble and cooling the expanded bubble with air from a cooling air ring, wherein blown film extrusion is carried out under such conditions that the ratio of (b) the final diameter of the expanded bubble to (a) the diameter of the bubble at the crystallizing temperature of the thermoplastic resin ((b)/(a)) ranges from 1.5 to 10. The process provides an oriented blown film excellent in strength, appearance, and heat shrinkage characteristics.

Production of oriented thermoplastic films by blown-film extrusion

A laminated resin sheet comprising (A) a laminated base material composed of (A.sup.1) an expanded resin layer and (A.sup.2) a non-expanded resin layer obtained by co-extrusion of (a.sup.1) a blowing agent-containing thermoplastic resin and (a.sup.2) a filler-containing thermoplastic resin containing 9 to 80% by weight of a filler through a T die, having laminated on at least one side thereof (B) synthetic paper comprising a stretched porous thermoplastic resin film containing an inorganic filler. The laminated resin sheet is light and highly rigid and exhibits a beautiful appearance with satisfactory printability and is therefore useful as various display materials and thermoformable sheeting for food trays, etc.

Laminated resin sheet and process for producing the same

A polyolefin-based wrapping film having one or more layers which satisfies the following conditions (1) to (4):

Polyolefin-based wrapping film

A laminate film for stretch-wrapping is disclosed, comprising an intermediate layer containing from 50 to 95% by weight of an ethylene-.alpha.-olefin copolymer, a propylene-ethylene-.alpha.-olefin random copolymer, a propylene-.alpha.-olefin random copolymer, a butene-1 homopolymer, or a butene-1-ethylene copolymer and from 5 to 50% by weight of a hydrogenated block copolymer elastomer having laminated on both sides thereof a surface layer comprising from 75 to 95% by weight of ethylene and from 5 to 25% by weight of vinyl acetate. The film is excellent in stretchability, softness, tear strength, and in particular deformation recovery properties.

Laminate film for stretch-wrapping and process for producing the same

A process for producing a propylene resin formed article with a hard coat is disclosed, comprising forming an ultraviolet-curing acrylic resin coating film on the surface of a propylene resin film or sheet, subjecting the film or sheet with the coating film to thermoforming, and irradiating the coating film to ultraviolet rays to cure said ultraviolet-curing resin, wherein said propylene resin film or sheet is composed of at least a propylene resin surface layer containing substantially no nucleating agent on which surface is coated said acrylic resin film and a thermoplastic resin base layer containing a nucleating agent which is laminated on the other side of said propylene resin surface layer prior to the thermoforming. The hard coat on the propylene resin formed article has high gloss.

Process for producing propylene resin formed articles with hard coat

The present invention provides a method for forming a cured-resin layer having a surface with antistatic properties. An ultraviolet-curable resin having antistatic properties is laminated on an ultraviolet-curable resin for forming an electrostatic cured surface by curing and the two layers then being simultaneously cured by ultraviolet irradiation thereon. A cured-resin layer is thereby obtained where the surface layer of the cured resin is provided with antistatic properties, and is strongly held by chemical bonding.

Process for forming cured-resin layer having an antistatic surface

A method for producing an antibacterial molded article of polyolefin resin is described, comprising molding a polyolefin resin composition having compounded therewith 0.01% by weight or more, based on the polyolefin resin composition, of an antibacterial agent which is a zeolite containing silver to form a molded article of a desired shape, and thereafter subjecting the antibacterial surface of the molded article to a corona discharge treatment.

Method for producing an antibacterial molded article of polyolefin resin

A method of forming a hard coat on a polyolefin base, a composite laminate or a formed article is disclosed, which comprises coating the surface of the polyolefin base with an ultraviolet-curable resin composition comprising (a) a polymer containing at least 80% by weight of methyl methacrylate and/or a modified polymer containing at least 80% by weight of methyl methacrylate and having introduced into the side chain thereof a (meth)acryloyl group, (b) a polyfunctional acrylate containing at least 50% by weight of dipentaerythritol hexaacrylate, the weight ratio of components (a) to (b) being from 1 to 10, and (c) a photopolymerization initiator, drying the coating to form an ultraviolet-curable resin layer, and curing the ultraviolet-curable resin layer by irradiation with ultraviolet light.

Method for forming hard coat on polyolefin

A deep drawing process, comprising melt-softening a resin sheet obtained from a resin composition comprising:

Deep drawing process of resin sheet

A composite heat-insulating material having the structure such that a molded product of a carboxyl group-containing polyolefin-based resin or hydroxyl group-containing modified polyolefin-based resin and a urethane foam are laminated with an aqueous adhesive containing the following Components (A) and (B):

Composite heat-insulating material

Films for use in stretch-packaging

A composite molded product according to the present invention has the structure that an olefin-based resin molded product and a urethane foam are integrally laminated with an adhesive resin layer of the invention.

Composite molded product

A thermoplastic resin composition having a good balance between stiffness and impact resistance, a small degree of sagging of sheet during heating step in thermoforming and excellent deep drawing characteristics is disclosed. The composition comprises an olefin polymer composition, a styrene polymer, a thermoplastic styrene block copolymer rubber and an inorganic filler.

Thermoplastic resin composition

Growing community of inventors

Mie, Japan

Takao Yazaki