Polyol, polyurethane resin and utilization thereof

Details Polyol, polyurethane resin and utilization thereof Polyol, polyurethane resin and utilization thereof

1993-02-19

1995-03-14

Kight, III, John

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

521138, 521164, 521170, 521171, 521172, 521173, 521174, 521180, 568700, 568852, 568857, 568867, 560 89, 560 91, C08G 1814, C07C 6976

Patent

active

053978102

ABSTRACT:
The present invention relates to a novel polyol obtained by using a specified polyhydric alcohol, polyoxyalkylene polyol, aliphatic amine and/or alkamlamine as a raw material and adding an organic polycarboxylic acid or its anhydride and an alkylene oxide; a polyurethane resin prepared from said novel polyol and an organic polyisocyanate; a rigid polyurethane foam prepared by using a hydrochlorofluorocarbon or hydrofluorocarbon foaming agent which has very low public hazards; and a composite utilizing thereof.
The production of rigid polyurethane foam by using the polyol of the invention can be carried out in good operation efficiency and low public hazards. Additionally, properties of the foam thus obtained is equivalent to those of rigid polyurethane foams obtained by using conventional chlorofluorocarbons. Consequently, the rigid polyurethane foam of the invention is very useful for insulation materials and structural insulation materials.

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