Toyo Boseki Kabushiki Kaisha

Ken Murayama

Masakazu Tanaka

Susumu Kashiwabara

Takao Kashihara

Yasunobu Morita

Satoru Murata

An adhesive for biological tissue includeds: a glue agent and a cross-linking agent. The glue agent contains a recombinant human plasma protein as a main component. The cross-linking agent contains a bifunctional or multifunctional aldehyde as a main component.

Adhesive for biological tissue

A gas-permeable material with excellent compatibility with blood comprising polyurethane, polyurethaneurea, or the derivatives thereof is provided. The polyurethane or polyurethaneurea is obtained from a composition that comprises diisocyanate; polysiloxane containing terminal hydroxyl groups; and polyol or polyamine containing at least one tertiary amino gorup. The derivatives of the polyurethane or polyurethaneurea is obtained by the following steps of: converting the tertiary amino groups contained in the polyurethane or the polyurethaneurea to quarternary ammonium groups, and treating the polyurethane or the polyurethaneurea having quarternary ammonium groups with heparin.

Gas-permeable material with excellent compatibility with blood

A polyvinyl chloride composition comprising 100 parts by weight of a polyvinyl chloride and 5 to 150 parts by weight of a high molecular weight, modified polyester which is prepared by reacting (A) a polyester having a carboxyl group at terminal thereof and containing an ester unit of total carbon atoms of 8 to 10 in the diol component and the dicarboxylic acid component with (B) a compound having epoxy groups at both terminals thereof, said polyvinyl chloride composition having excellent acticoagulant activity and hence being useful for various blood handling devices including blood transmitting tube, as well as other utilities such as packages for foodstuffs as in the conventional polyvinyl chloride composition.

Polyvinyl chloride composition

Devices such as blood transfusion tubes, which can be contacted with human blood at reduced risk of blood clotting, made of a segmented polyether polyurethane urea obtained by chain extending an isocyanate-terminated prepolymer with a diamine having a branch at at least one .alpha.-carbon atom, such as 1,2-propylene diamine or 1,4-cyclohexylene diamine.

Blood transfusion tubes and devices for use in contact with human blood

Novel flame resistant polyesters provided with improved moldability. The polyester comprising a combination of an aromatic dicarboxylic acid or an ester-forming derivative thereof, a diol or an ester-forming derivative thereof, and a particular phosphorus compound having at least two ester-forming functional groups. The content of phosphorus in the polyester is about 500-50,000 ppm.

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Osaka, Japan

Ken Murayama