| 摘要 |
PURPOSE:To obtain a moisture curing type adhesive, which is a solid at ordinary temperature and consists of a specific aromatic polyester polyol based NCO urethane prepolymer, capable of firmly adhering without slippage in bonding and suitable for packaging, etc. CONSTITUTION:A moisture curing type adhesive obtained from an aromatic polyester polyol based NCO urethane prepolymer melting at least 60 deg.C, preferably a prepolymer prepared by subjecting an organic polyisocyanate containing an aromatic polyisocyanate and a polyol containing an aromatic polyester polyol at 1.6-3 equivalent ratio (NCO/OH) to an NCO urethane prepolymer forming reaction and, as necessary, an aliphatic polyester polyol based NCO urethane prepolymer.
|
