Production of polyetherpolyols useful in preparing rigid polyure

Details Production of polyetherpolyols useful in preparing rigid polyure Production of polyetherpolyols useful in preparing rigid polyure

1975-09-25

1977-06-28

Wyman, Daniel E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260563R, 2605706, 260573, 260584B, C07C 9304, C07C 9306, C07C 9308, C07C 9312

Patent

active

040325741

ABSTRACT:
Polyetherpolyols useful in preparing rigid polyurethane foam excellent in dimensional stability and inflammability. These polyetherpolyols are obtained by reacting alkylene oxide with compounds containing active hydrogen atoms, part or all of which comprise the reaction product obtained by heating the distillation residue secured as a byproduct in the distillation process of a crude polyisocyanate in the presence of (1) water, alcohols and/or amines and (2) hydroxides or oxides of alkali metals or alkaline earth metals and/or monoalkanolamines.

REFERENCES:
patent: 2999873 (1961-09-01), Bloom et al.
patent: 3128310 (1964-04-01), Koch
patent: 3225094 (1965-12-01), Wolf
patent: 3415891 (1968-12-01), Turumaru et al.
patent: 3499009 (1970-03-01), Odinak et al.
Sidgwick, "The Organic Chemistry of Nitrogen", p. 236, (1966).

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