SYNTHETIC LEATHER USING POLYURETHANE RESIN

Japanese Patent JP3119310

B

PURPOSE: To obtain the subject synthetic leather excellent in surface smoothness and transparency by providing a fibrous base fabric with a film consisting of a polyurethane resin prepared by reaction between a specific silicone-based single-terminated dihydroxymacromonomer, specific diol and organic diisocyanate.
CONSTITUTION: Firstly, a polyurethane resin excellent in surface smoothness and transparency is prepared by reaction between (A) a single-terminated dihydroxymacromonomer 2000-50000 in molecular weight produced by radical polymerization of (1) a (meth)acryloyl group-contg. silicone and, if needed, (2) another radical-polymerizable monomer (e.g. methyl methacrylate) in the presence of a mercaptan-based chain transfer agent having two hydroxyl groups and one mercapto group, (B) a long chain polyhydroxy compound 500-5000 in molecular weight and (C) an organic diisocyanate. Thence, a solution of this resin is applied on a release paper followed by drying, and a fibrous base fabric is then laminated with the resulting release paper through an adhesive followed by aging and then peeling off the release paper, thus affording the objective clear synthetic leather with high mechanical strength.

JP09309937	POLYMER POLYOL AND ITS PRODUCTION
JP2000302862	LOW-ODOR POLYOXYALKYLENE POLYOL, PREPARAT ION THEREOF AND URETHANE COMPOSITION
WO/2010/108676	METHOD FOR FORMULATING A REACTIVE POLYURETHANE EMULSION

Matsumoto, Yasuhiro
Nishino, Shigetoki
Hashiguchi, Tsunenori

JP1991000328849

October 13, 2000

December 12, 1991

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DAINIPPON INK & CHEM INC

C08G18/48; C08G18/62; D06N3/14; C08G18/00; D06N3/12; (IPC1-7): D06N3/14; C08G18/48; C08G18/62

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