Alkoxylated modified Mannich condensates and manufacture of rigi

Details Alkoxylated modified Mannich condensates and manufacture of rigi Alkoxylated modified Mannich condensates and manufacture of rigi

1983-12-29

1985-02-19

Welsh, Maurice J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521167, 252182, 525507, 528111, C08G 1814

Patent

active

045006555

ABSTRACT:
This invention relates to polyols that can be used to prepare rigid foams, such polyols being prepared by reacting a propoxylation product with melamine and a lower alkylene carbonate. The propoxylation product (which can contain some ethylene oxide) is prepared by propoxylating a Mannich condensate prepared by reacting phenol or a C.sub.1 -C.sub.12 alkylphenol with formaldehyde and diethanolamine in the mole ratios of from 1:1:1 to about 1:3:3.

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Copending U.S. patent application Ser. No. 06/545,422, filed Oct. 25, 1983, Brennan et al., "Mannich Condensates Having Fire Retardancy Properties and Manufacture of Rigid Polyurethane Foam Therewith".
Copending Brennan et al., U.S. patent application Ser. No. 06/545,421, filed Oct. 25, 1983, "Modified Mannich Condensates and Manufacture of Rigid Polyurethane Foam with Alkoxylation Products Thereof".
Copending Brennan et al., U.S. patent application Ser. No. 06/545,423, filed Oct. 25, 1983, "Mannich Condensates Having Fire Retardancy Properties and Manufacture of Rigid Polyurethane Foam Therewith".

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