Asahi Glass Company, Limited

Sanyo Chemical Industries, Ltd.

Teruo Takakura

Atsushi Funaki

Seitoku Kaya

Atsushi Hayashi

Toru Ishida

Kazuo Harada

Tatsuo Momii

Naomi Ichikuni

Kazuo Kato

Masaaki Yamabe

Haruhisa Miyake

Naoko Sumi

Takehisa Matsuda

Kazuo Hamazaki

Tetsuo Itoh

Masao Kato

Atushi Funaki

Mitsufumi Ono

A molding material consisting of a fluorine-containing copolymer, which has a metal elution index &#x3b7; of at most 10 as the total amount in ng of metals of Na, Mg, Cu, Cr, Ni, K, Ca and Fe per 1 g of the molding material, as obtained by elution analysis of the molding material with nitric acid.

Fluorine-containing copolymer molding material

A synthetic resin molded material characterized in that a thin film made of an oxide of at least one metal selected from the group consisting of Si, Zr, Ti, Ta, Hf, Mo, W. Nb, Sn, In, Al and Zn, is formed by a dry method on a synthetic resin substrate having hydrophobicity, and a method for its production.

Synthetic resin molded material and method for its production

A synthetic resin molded material characterized in that a thin film made of an oxide of at least one metal selected from the group consisting of Si, Zr, Ti, Ta, Hf, Mo, W, Nb, Sn, In, Al and Zn, is formed by a dry method on a synthetic resin substrate having hydrophobicity, and a method for its production.

An aqueous dispersion of a fluorocopolymer, which is excellent in stability and film-forming properties as an aqueous dispersion and which gives a coating film excellent in weather resistance and mechanical strength and improved in water resistance and stain resistance. The aqueous dispersion comprises water and dispersed therein a fluorocopolymer which comprises (a) polymer units based on a fluoroolefin, (b) polymer units based on propylene, (c) polymer units based on ethylene and/or (d) polymer units based on butylene and which has a melting point within a range of from 40 to 150&deg; C.

Aqueous dispersion of fluorocopolymer and composition for water-based coating material

An ETFE powder having a viscosity factor &phgr; of at most 1&times;10 Pa&middot;sec, an anelasticity factor &egr; of at most 5&times;10 Pa , an average particle diameter of from 5 to 1,000 &mgr;m and an apparent density of at least 0.5 g/cc, is deposited on a substrate surface, followed by heat melting and cooling for solidification to form a film.

Ethylene/Tetrafluoroethylene/fluorinated vinyl monomer copolymer powder and molding method therefor

An agricultural covering material made of a fluorine-containing polymer film having a dynamic viscoelastic modulus of from 1 to 70 kg/mm , a tensile strength of from 1.5 to 5.0 kg/mm , a specific gravity of from 1.0 to 2.0 and a contact angle with water of at most 106&deg;.

Agricultural covering material

A method for producing a fluorine-containing polymer having polymer units based on a fluoroolefin as the main constituting units, wherein a hydrofluoroalkyl ether is used as a polymerization medium.

Process for producing fluoropolymer

A polytetrafluoroethylene powder having an average particle size of at most 200 &mgr;m is stirred and granulated in a 2 phase liquid medium comprising water and perfluoroalkyl alkyl ether, to obtain a granulated powder of polytetrafluoroethylene.

Process for producing granulated polytetrafluoroethylene powder

A fluorine-containing copolymer comprising (a) polymer units based on a fluoroolefin, (b) polymer units based on a cyclic monomer having, on its ring, an unsaturated group copolymerizable with the fluoroolefin, (c) polymer units based on an ethylenically unsaturated compound having a curable moiety but having neither an ester bond nor an ether bond, and optionally (d) polymer units based on at least one olefin selected from ethylene, propylene and isobutylene, or polymer units based on a vinyl ether having an aliphatic ring, in such proportions that, based on the total amount of polymer units (a), (b), (c) and (d), polymer units (a) are from 35 to 65 mol %, polymer units (b) are from 5 to 45 mol %, polymer units (c) are from 1 to 30 mol % and polymer units (d) are from 0 to 40 mol %, which has a number average molecular weight within a range of from 2,000 to 100,000, as calculated as polystyrene by gel permeation chromatograph, and which has rings based on said cyclic monomer, on the main chain of the copolymer.

Fluorine-containing copolymer having rings on its main chain

A fluorine-containing copolymer comprising:

Fluorine-containing copolymer

A method for producing a fluorine-containing copolymer, which comprises suspension-polymerizing at least one fluoroolefin, or at least one fluoroolefin and at least one monomer copolymerizable with the fluoroolefin, in a polymerization medium comprising at least one solvent selected from the group consisting of a perfluorocarbon, a hydrofluorocarbon and a hetero atom-containing perfluorocarbon, water and a fluorine-containing surfactant.

Method for producing a fluorine-containing copolymer

Method for producing a fluorinated polymer

Elastomeric or flexible surgical adhesives, comprising (i) a NCO-terminated hydrophilic urethane prepolymer derived from a fluorine-containing polyisocyanate and a hydrophilic polyether polyol of higher oxyethylene content, or a combinatioin of (i) with (ii) an unsaturated cyano compound containing a cyano group directly bonded to a polymerizable double bond, exhibit low toxicity, may be safely used for bonding of tissues and possess a rapid cure rate and sufficient bonding power.

Surgical adhesive

An antithrombogenic material is composed of a fluorine-containing block polymer obtained by the polyaddition or polycondensation of a prepolymer with a chain extender, said prepolymer being a diisocyanate prepolymer represented by the formula

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Yokohama, Japan

Teruo Takakura