发明名称 |
Polyisocyanate curing agent and paint and adhesive compositions containing the same |
摘要 |
<p>The present invention provides a curing agent comprising a polyisocyanate compound obtained from hexamethylene diisocyanate and containing not more than 0.5 % by weight of hexamethylene diisocyanate monomer, 21 to 60 % weight of uretidine dione dimer and 11 to 40 % by weight of isocyanurate cyclic trimer, the uretidine dione dimer and the isocyanurate cyclic trimer being prepared from a product obtained by urethane modification of 0.5 to 15 mole % by mole of total isocyanate groups of the hexamethylene diisocyanate by a dihydric alcohol having at least two hydroxyl groups and a branched hydrocarbon group having 4 to 35 carbon atoms in the molecule, which the side chain hydrocarbon groups in the branched hydrocarbon group have 2 to 33 carbon atoms in total. The curing agent has a low viscosity and a good compatibility with a solvent, and can provides a polyurethane paint or adhesive composition having good curing property, drying property, adhesion strength and weathering resistance.</p> |
申请公布号 |
EP0645411(B1) |
申请公布日期 |
1997.12.29 |
申请号 |
EP19940307031 |
申请日期 |
1994.09.27 |
申请人 |
NIPPON POLYURETHANE INDUSTRY CO. LTD. |
发明人 |
YOSHIDA, MITSUHIRO;SATO, SUSUMU;NANNO, HISASHI |
分类号 |
C08G18/02;C08G18/79;C08G18/80;C09D175/04;C09J175/04;(IPC1-7):C08G18/79 |
主分类号 |
C08G18/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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