Polyplastics Co., Ltd.

Celanese Gmbh

Hoechst Celanese Corporation

Yukio Ikenaga

Kenji Hijikata

Katsuhiko Takahashi

Toshio Kanoe

Tsuneyoshi Okada

Masami Yamawaki

Takuzo Kasuga

Yasuyuki Takeda

Takeshi Asano

Kunio Suzuki

Koichi Ichimura

Keizo Tanimura

Osamu Matsuno

Hiroshi Hotta

Tuneyasu Nakashima

Hiroyasu Komazawa

Masatoshi Matsuoka

Tadashi Mori

Takuzo Kausga

A polyacetal resin composition comprises polyacetal and a two- or more-stage polyacrylate comprising a rubber like first stage and a thermoplastic rigid final stage. It is useful for a metallized article with a high impact resistance.

Polyacetal resin composition

A resin composition is suitable for molding to a gear and comprises 30 to 98 percent by weight of a resin being capable of the anisotropic phase in the molten state and the melt processing and 2 to 70 percent by weight of fibers such as metal fibers, carbon fibers, glass fibers, inorganic fibers, synthetic fibers and mineral fibers.

Gear comprising fiber-reinforced anisotropic melt-forming polymer formed

An electroconductive resin composite is produced by polymerizing at least one monomer a polymer of which is electroconductive in a matrix of a resin which exhibits the anisotropy in the melt phase to form a composite of the obtained polymer and the resin. The resin composite is obtained in the form of film and a moulded article.

Process for producing electroconductive resin composite

A laminated film comprises a metallic film and a polymer layer which has been laminated on the metallic film, the polymer being anisotropic in the melt phase.

Metallic film with laminated layer of an anisotropic melt phase forming

A polyacetal resin composition comprises a polyacetal resin as the matrix, (A) 0.01 to 2.0 percent by weight of a stabilizer selected from a benzotriazole compound, a benzophenone compound and an aromatic benzoate compound and (B) 0.01 to 2.0 percent by weight of a hindered amine compound and is improved in whetherability.

Weather resistant polyacetal resin composition

A magnetic disk comprises a substrate of a resin composition comprising a polymer being capable of the anisotropic phase in the molten state and a magnetic layer formed on at least one surface of said substrate. The substrate is a laminate of a plurality, preferably two, of monoaxially oriented sheets, eventually being multiaxially oriented.

Magnetic disk

An optical disc comprises a substrate formed from a polymer being capable of the anisotropic melt phase and being melt-processable, a recording layer having pits and grooves, formed on the substrate, and a metal coating layer, formed on the recording layer.

Optical disc

A laminated sheet comprises a first layer of a melt-phase anisotropy exhibiting thermoplastic polymer, having a negative linear expansion coefficient in the direction of the polymer flow and a second layer having a positive linear expansion coefficient in the direction of the polymer flow, both layers having been laminated one on another in the alternative way, further each layer having a thickness such that the negative linear expansion coefficient of said first layer and the positive linear expansion coefficient of the second layer having been offset against each other.

Method of manufacturing a molded article having good dimensional

A magnetic composite comprises a magnetic powder and a resin binder of a melt-processable polymer to form the anisotropic melt phase.

Magnetic composite

A polyacetal resin composition is provided which has improved antistatic, heat stability and mechanical properties and contains a polyacetal homopolymer or copolymer, carbon black and a nonionic surfactant which is a polypropylene glycol/polyethylene glycol ether copolymer.

The polymer or a copolymer of trioxane copolymer is manufactured by adding 0.001 to 2.0 wt. % of a stereo-hindering phenol to the monomer mixture in advance to the polymerization step and polymerizing trioxane and an optional co-monomer in the presence of a cationic, active catalyst and said phenol.

Method for manufacturing polymer or copolymer of trioxane

Polyester resin composition resistant against discoloration by light

A polyacetal composition which comprises polyacetal, an aliphatic ester of a polyhydric alcohol having a hydroxy group, polyethylene glycol, and an organometallic salt, wherein the organometallic salt is present in an amount of from 0.01 to 5 percent by weight based on the total composition.

Polyacetal resin composition containing electrically conductive carbon black is improved in respect to stability to heat by incorporating thereinto an amide compound.

A trioxane copolymer is manufactured by adding to trioxane and a co-monomer, 0.0001 to 2.0 percent by weight, based on the total weight of the monomers, of one or more sterically hindered phenols, then co-polymerizing the resultant mixture in the presence of a cation-active catalyst, and then treating the resultant copolymer by heating it at a temperature which is higher than the melting point of the copolymer to melt the copolymer and decompose and remove unstable parts of the copolymer.

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Fuji, Japan

Yukio Ikenaga