摘要:
PROBLEM TO BE SOLVED: To provide a hard vinyl chloride-based resin composition for medical use excellent in sterilization treatment by radioactive ray irradiation, especially, with remarkably reduced in the discoloration even when treated by γ-ray irradiation, and excellent in radioactive ray resistance, hardness and elutability, and hard parts for medical use produced by molding the same. SOLUTION: The hard vinyl chloride-based resin composition for medical use comprises 100 pts.wt. of a vinyl chloride-based resin and 1-15 pts.wt. of one or more plasticizers selected from cyclohexane dicarboxylate-based plasticizers and alkylsulfonic acid-based plasticizers, and has ≥35° Rockwell hardness defined by JIS K7202. The hard medical parts are molded articles prepared by molding the resin composition. COPYRIGHT: (C)2008,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide a hardenable composition containing an organic polymer having a reactive silicon group as a constituent, produced by using a non-phthalic acid plasticizer, improving hardenability lowering during storage, and excelling in workability, hardenability in a deep section, and surface weatherability.SOLUTION: A hardenable composition includes: an organic polymer (A) having a reactive group containing silicon which is crosslinkable by forming a siloxane bond; and an ester compound (B) of a cycloalkane polycarboxylic acid.
摘要:
PROBLEM TO BE SOLVED: To provide a plasticizer for a urethane resin which is low in volatility, a few in heating loss under a high-temperature environment, excellent in compatibility with a polyol which is a raw material of urethane resin, and reduces the viscosity of a solution blended with it; and to provide a urethane resin composition using the plasticizer, and a cured material thereof.SOLUTION: The plasticizer for urethane resin includes, as an essential component, an ester compound which is obtained by esterification of an aromatic polyvalent carboxylic acid (A) or its acid anhydride, and an aliphatic branched monoalcohol (B), wherein the value obtained by multiplying the valence number of the aromatic polyvalent carboxylic acid (A) by the C atom number of the aliphatic branched monoalcohol (B) is in the range of 33-100. There are provided an urethane resin composition using the plasticizer and a cured material thereof.
摘要:
PROBLEM TO BE SOLVED: To provide a wire coating material, an insulated wire, and a wire harness a diameter of which can be reduced and which enable insertion into a terminal without being buckled when used as an insulated wire, as well as satisfying flexibility and having an excellent appearance of a wire.SOLUTION: The wire coating material containing 100 pts.mass of a polyvinyl chloride, 10 to 20 pts.mass of a plasticizer, 1 to 6 pts.mass of a chlorinated polyethylene, and 1 to 6 pts.mass of a MBS resin such that a total amount of the chlorinated polyethylene and the MBS resin is 2 to 7 pts.mass is used to coat a conductor 1 such that a thickness of an insulator 2 is 0.25 mm or less, and resulting in obtaining an insulated wire 1 having an outer diameter of below 1.1 mm.
摘要:
PROBLEM TO BE SOLVED: To provide a conductive polymer suspension for providing an organic material having excellent adhesiveness to a substrate and liquid resistance, and further high conductivity, and a method for producing the same.SOLUTION: The conductive polymer suspension includes: a conductive polymer; at least one water-soluble polyhydric alcohol; and at least one water-soluble organic substance having two or more functional groups condensation-polymerizable with the water-soluble polyhydric alcohol. The conductive polymer suspension can be produced by recovering a conductive polymer, which is obtained by chemical oxidative polymerization of a monomer which gives the conductive monomer by use of an oxidizer in a solvent including an organic acid or a salt thereof as a dopant; causing the oxidizer to act on the conductive polymer in an aqueous solvent including a poly acid; and further mixing at least one water-soluble polyhydric alcohol and at least one water-soluble organic substance having two or more functional groups condensation-polymerizable with the water-soluble polyhydric alcohol thereto.
摘要:
PROBLEM TO BE SOLVED: To provide a self-restorable polymer material and a resin-coated article excellent in self-restorability, readily processible and excellent in cost performances.SOLUTION: This self-restorable polymer material includes a polymer containing a vinyl butyral-derived molecular chain and a plasticizer, of which the mass ratio of the polymer and the plasticizer is 70:30 to 99:1; the glass transition temperature is 50-80°C; the value of tensile storage elastic modulus at 10 Hz and 23°C is 100 MPa or more; and the value of tensile storage elastic modulus at 10 Hz and 100°C is 0.5 MPa or more.