Sumitomo Chemical Company, Limited

Hayashibara Biochemical Laboratories, Inc.

Teruo Saito

Kuniaki Asai

Kazuo Hieda

Tadayasu Kobayashi

Hiroomi Matsunaga

Kozo Tsuji

Yasurou Suzuki

Hiroshi Ishida

Takashi Maruyama

Yasuro Suzuki

Haruo Hayashida

Yukikazu Uemura

Haruo Suzuki

Tatsuo Goto

Katsuzi Ueno

Isamu Nakagawa

Kei Kagiya

A wire coating resin composition comprising 25 to 95% by weight of a polyetherketone and 75 to 5% by weight of an aromatic polysulfone, which is characterized by the intrinsic viscosity (y) of the polyetherketone complying with the condition

Wire coating resin composition

An aromatic polysulfone resin composition comprising 20 to 80% by weight of an aromatic polysulfone, 10 to 70% by weight of wallastonite and 0.5 to 20% by weight of a fluororesin. The aromatic polysulfone resin composition is superior in heat resistance, strength, stiffness, flame resistance, processability, etc. as engineering plastics.

Aromatic polysulfone resin composition

A thermoplastic resin composition comprising a resin blend comprising an aromatic polysulfone and a polyetherketone, the relationship between the blending ratio and the melt viscosity of said polyetherketone satisfying a specific mathematical expression, and one or more inorganic fillers having a specific shape is disclosed. The thermoplastic resin composition according to the present invention provides many property advantages including chemical resistance and injection molding stability. It can be suitably used in the frontier industries such as electric, electronic, automobile and office automation instrument industries.

Thermoplastic resin composition having an improved chemical resistance

A denture-base made of a thermoplastic resin compound which comprises polysulfone resins (A) and a resin (B) selected from the group consisting of polycarbonates, polyester carbonates, aromatic polyester copolymers and their mixtures, is excellent in mechanical properties and compatibility with acrylic resins, firmly implants artificial dentures of acrylic resin, and is readily repaired by use of repair materials of acrylic resin.

Denture base made of thermoplastic resin

An ovenware having a very fine appearance, improved resistance to staining by foods and improved food releasability and accordingly capable of withstanding repeated use even under very severe conditions can be provided by coating at least the inner surface of an ovenware made from a wholly aromatic polyester or from a composition composed of said wholly aromatic polyester and an inorganic filler material, with a fluoroplastic type coating material.

Plastic ovenware having non-tackiness

A polyetherketone resin composition improved in heat stability when melted, which comprises 30 to 95% by weight of polyetherketone and 70 to 5% by weight of potassium titanate fibers which do not contain more than 0.25% by weight of free potassium.

Polyetherketone resin composition

Resin composition

An aromatic polysulfone resin composition comprising from 30% to 95% by weight of an aromatic polysulfone and from 5% to 70% by weight of a potassium titanate fiber having not more than 0.25% by weight of a free potassium content is disclosed. The composition has improved heat resistance, strength, rigidity and, in particular, does not undergo gelation during melting.

Ovenwares produced by molding a wholly aromatic polyester resin composition comprising 30 to 80 wt. % of a wholly aromatic polyester having a repeating unit represented by the general formula, ##STR1## wherein X is a C.sub.1 -C.sub.4 alkyl group or --O--, --SO.sub.2 --, --S-- or --CO-- group, m and n are 0 or 1, a d:e ratio is in the range of from 1:1 to 10:1, an e:f ratio is in the range of from 9:10 to 10:9, and the positions of substituents at each aromatic ring of the foregoing general formula are para or meta to each other, 5 to 60 wt. % of wollastonite and 5 to 60 wt. % of titanium oxide.

Ovenware molded from wholly aromatic polyester composition

A coating resin composition is described, comprising from 50 to 99% by weight of a thermoplastic aromatic polyether ketone resin and from 50 to 1% by weight of a perfluoroalkoxy resin or a tetrafluoroethylene/hexafluoropropylene copolymer resin having hexafluoropropylene content of from 18 to 25% by weight. The composition, when applied to a steel plate, for example, produces a coating film which is greatly improved in water repellency while retaining the desirable properties of the polyether ketone, such as high heat resistance, good mechanical and electrical properties, and high chemical resistance.

Coating resin composition

A resin composition excellent in sliding characteristics, composed of 95 to 30% by weight of an aromatic polysulfone, 2.5 to 60% by weight of a fluorocarbon polymer and 2.5 to 60% by weight of an oxybenzoyl polyester.

Aromatic polysulfone resin composition suitable for use in

A method for prevention of loss of transparency of shaped articles prepared from a polyarylene ester blend comprising a polyarylene ester and other thermoplastic resin when treated with steam or boiling water, which comprises reducing the sodium content of the blend to less than 70 ppm.

Method for prevention of loss of transparency of polyarylene ester blends

A polyester resin composition having excellent mechanical properties, processability, transparency and surface glossiness of the formed product thereof, which comprises 1 to 99% by weight of an aromatic polyester produced by polycondensing para-hydroxybenzoic acid or a functional derivative thereof (I), 2,2-bis(4'-hydroxyphenyl)propane or a functional derivative thereof (II), and terephthalic acid or a functional derivative thereof (III) and/or isophthalic acid or a functional derivative thereof (IV) in a molar ratio of (I):(II)=1:100 to 100:1 and (II):(III) and/or (IV)=1:10 to 10:1 and 99 to 1% by weight of a polycarbonate or an aliphatic polyester.

Polyester resin composition

A novel resin composition is obtained by blending a hydrophilic pullulan with 2 to 98 wt %, based on the total resin weight, of a hydrophobic thermoplastic resin. In case the amount of the thermoplastic resin is 2 to 50 wt %, there is obtained a resin composition consisting essentially of the pullulan which is excellent in water resistance, while in case the amount of the thermoplastic resin is 50 to 98 wt %, there is obtained a resin composition consisting essentially of the thermoplastic resin which has been improved in water and moisture absorptivity.

Resin composition of hydrophilic pullulan, hydrophobic thermoplastic

A foamed plastic of a resin composition comprising a pullulan type resin and a thermoplastic resin. When a resin composition comprising a pullulan type resin and a thermoplastic resin is foamed, the resulting foamed plastic is improved in moisture and water absorptivity which is low in the case of a foamed plastic composed of the thermoplastic resin, and in water resistance which is low in the case of a foamed plastic composed of the pullulan type resin.

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Kusatsu, Japan

Teruo Saito