Sumitomo Chemical Company, Limited

Marubishi Oil Chemical Co., Ltd.

Sumitomo Dow Limited

Sanvic Incorporation

Sumika A&l Inc.

Noboru Yamaguchi

Tadayuki Ohmae

Kentaro Mashita

Yoshiki Toyoshima

Kouichiro Asao

Jinsho Nambu

Tadashi Sakurai

Kenzo Chikanari

Norio Kondo

Tohru Fujiki

Mitsuyuki Okada

Hisao Tanaka

Satoshi Nagai

Haruhiko Hisada

Masahide Yoshiya

Kiyoshi Ogura

Minoru Nishino

Yuji Hatou

Kazuki Wakamatsu

Masahiro Kakugo

Toshio Kawakita

Kizuku Wakatsuki

Takayuki Okada

Sumio Hara

Yoshikatsu Ogawa

Noriyasu Yasuda

Tadayuki Omae

Yoshiyuki Komori

Kenichi Hosoda

Akira Kondo

A saturated polyester resin composition excellent in impact resistance is prepared by melt kneading (A) 30-58 parts by weight of a saturated polyester resin, (B) 42-70 parts by weight of an epoxy group-containing ethylene copolymer comprising (a) 50-99% by weight of ethylene unit, (b) 0.1-30% by weight of unsaturated carboxylic acid glycidyl ester unit or unsaturated glycidyl ether unit, and (c) 0-49% by weight of ethylenically unsaturated ester compound unit, (C) 0.01-20 parts by weight of a polyfunctional compound containing at least two specific functional groups of amino groups, carboxyl groups, carboxylic acid anhydride groups, hydroxyl groups or ##STR1## unit (wherein X and Y are both oxygen atoms or sulfur atoms or one of them is an oxygen atom and another is a sulfur atom) and (D) 0-30 parts by weight of a block copolyether ester elastomer, the amounts of (C) and (D) being based on 100 parts by weight of (A) plus (B), thereby to obtain a former-stage composition (I) and furthermore melt kneading the resulting composition (I) with (E) 50-1000 parts by weight of a saturated polyester resin and (F) 0-30 parts by weight of a block copolyether ester elastomer at a later-stage.

Method for producing impact-resistant polyester resin compositions

A process for producing a flame retardant thermoplastic resin composition which has an excellent flame retardancy while maintaining sufficiently high levels of mechanical properties including tensile property, flexural property and impact resistance which process comprises the following first step and second step:

Process for producing flame retardant thermoplastic polyester resin

A modifier for resin and rubber of which an active ingredient is a reaction product of a styrene-maleic anhydride copolymer (A) with a poly(alkylene oxide) monoalkyl ether (B), and/or a metal salt thereof, which modifier improves processability and properties of resins or rubbers. For example, the modifier provides resins or rubbers with antistatic properties. It also enhances the dispersibility of additives, e.g., a flame retardant or fillers incorporated in the resin or the rubber, and provides resins or rubbers with, for example, excellent flame retardancy and prevents the additive or the filler from blooming.

Modifier for resin and rubber

Disclosed is a thermoplastic resin composition comprising (A) an amorphous resin and further comprising, per 100 parts by weight of the amorphous resin,

Thermoplastic resin composition including an amorphous resin, an epoxy

Disclosed is a thermoplastic resin composition comprising (A) an amorphous resin and further comprising, per 100 parts by weight of the amorphous resin, 0.01 to 20 parts by weight of (B) an epoxy group containing ethylene copolymer, and 0.01 to 20 parts by weight of at least one member selected from the group consisting of (C) a polyfunctional compound and (D) a carboxylic acid metal salt, wherein the polyfunctional compound contains, per molecule, at least two identical or different functional groups selected from the group consisting of carboxyl group, amino group, carboxylic acid anhydride group and a unit represented by the formula (1) ##STR1## wherein X and Y are identical and each represents oxygen atom or sulfur atom, or one of X and Y is an oxygen atom and the other is a sulfur atom, or wherein the polyfunctional compound contains, per molecule, at least one unit represented by the formula (2) ##STR2## wherein Z represents oxygen atom or sulfur atom.

Delustered amorphous thermoplastic resin composition

A thermoplastic elastomer composition which is excellent in balance of properties such as mechanical properties and thermal properties and in appearance is prepared by melt-kneading (A) 20-58 parts by weight of a saturated polyester resin and (B) 42-80 parts by weight of an epoxy group-containing ethylene copolymer and then melt-kneading 100 parts by weight of the resulting composition with (C) 0.01-20 parts by weight of a polyfunctional compound containing in one molecule at least two functional groups selected from an amino group, a carboxylic acid anhydride group, a hydroxyl group and a ##STR1## wherein both X and Y are oxygen atoms or sulfur atoms, or either X or Y is an oxygen atom and another is a sulfur atom, or (D) 0.01-9 parts by weight of a polyfunctional compound having in one molecule at least two carboxyl groups or both at least one carboxyl group and at least one functional group selected from an amino group, a carboxylic acid anhydride group, a hydroxyl group and the ##STR2## wherein X and Y are defined above.

Method for producing thermoplastic elastomer composition

A flame retardant thermoplastic resin composition which comprises (A) 50 to 90% by weight of a thermoplastic resin which is the base polymer and 50 to 10% by weight of a total of (B) a nitrogen-containing condensed phosphoric acid compound, (C) a comb-like polymer consisting of a polyethylene main chain and a polyoxyalkylene side chain and (D) a metal-containing compound having a carbonization accelerating effect, the amounts of the components (B), (C) and (D) being 5 to 49% by weight, 1 to 15% by weight and 0 to 10% by weight, respectively, in which the total amount of the components (A), (B), (C) and (D) is 100% by weight; a process for producing the composition; a flame-retardant consisting of the components (B), (C) and (D); and a process for producing the flame-retardant.

Fire retardant additive and fire retardant thermoplastic resin

A thermoplastic elastomer composition which is useful for bumper, boot, sound absorbing gear, sports shoes etc. is provided by mixing the following (A)-(D).

Thermoplastic elastomer composition

A thermoplastic elastomer composition which is excellent in balance of properties such as mechanical properties and thermal properties and in appearance is prepared by melt-kneading (A) 20-58 parts by weight of a saturated polyester resin and (B) 42-80 parts by weight of an epoxy group-containing ethylene copolymer and then melt-kneading 100 parts by weight of the resulting composition with (C) 0.01-20 parts by weight of a polyfunctional compound containing in one molecule at least two functional groups selected from an amino group, a carboxylic acid anhydride group, a hydroxyl group and a ##STR1## group wherein both X and Y are oxygen atoms or sulfur atoms, or either X or Y is an oxygen atom and another is a sulfur atom, or (D) 0.01-9 parts by weight of a polyfunctional compound having in one molecule at least two carboxyl groups or both at least one carboxyl group and at least one functional group selected from an amino group, a carboxylic acid anhydride group, a hydroxyl group and the ##STR2## group wherein X and Y are defined above.

Method for producing thermoplastic elastomer compositions

A process for producing a reinforced crystalline engineering plastic composition is disclosed, comprising melt-kneading (A) from 60 to 97 parts by weight of a crystalline engineering plastic and (B) from 5 to 100 parts by weight, per 100 parts by weight of the sum of (A) and (C), of glass fibers and melt-kneading the resulting mixture with (C) from 3 to 40 parts by weight of an epoxy- or acid anhydride-containing ethylene copolymer. The composition obtained provides, with excellent moldability, a molded article having an improved appearance while exhibiting well-balanced mechanical and thermal properties.

Process for producing reinforced crystalline engineering plastic

A laminate comprising a soft polyolefin resin layer, an ethylene-unsaturated carboxylic acid ester-maleic anhydride terpolymer resin layer, and a soft urethane foam resin layer is disclosed. The laminate is produced by a process comprising co-extruding a soft polyolefin resin and an ethylene-unsaturated carboxylic acid ester-maleic anhydride terpolymer resin to prepare a two-layer sheet and continuously laminating a soft urethane foam fabricated in a stratiform state on the ethylene-unsaturated carboxylic acid ester-maleic anhydride terpolymer resin layer by hot pressing. The laminate has a satisfactory appearance, toughness, a soft touch, and a cushioning effect.

Laminates and process for producing the same

A polyamide resin composition having a multi-phase structure and a process for producing the same are disclosed, the composition comprising:

Multi-phase structure and process for producing the same

An impact-resistant polyamide resin is produced by

Process for producing impact-resistant polyamide resin compositions

Laminated soft polyolefin resin layer to urethane foam using an adhesive

A thermoplastic elastomer composition having a flexural modulus as defined in JIS K7203-1982 of from 500 to 15,000 kg/cm.sup.2, which is obtainable by melt kneading

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Chiba, Japan

Noboru Yamaguchi