Process for preparing rigid polyurethane foams using latent cata

Details Process for preparing rigid polyurethane foams using latent cata Process for preparing rigid polyurethane foams using latent cata

1977-05-10

1978-10-10

Ivy, C. Warren

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521121, 521126, 521175, 521129, C08G 1824

Patent

active

041195850

ABSTRACT:
The combination of a diorganotin sulfide, -polysulfide, -dithiocyanate, bis(thiocyanato diorganotin) sulfide or bis(thiocyanato diorganotin) oxide with a tertiary amine functions as a latent catalyst for rigid polyurethane foams. Latency is not observed using a tertiary amine with other sulfur-containing organotin compounds.

REFERENCES:
patent: 3092593 (1963-06-01), Nass
patent: 3095434 (1963-06-01), Stamm
patent: 3432474 (1969-03-01), Lombardi
patent: 3635906 (1972-01-01), Jayawant
patent: 3645927 (1972-02-01), Andres
patent: 3933692 (1976-01-01), Kushlefsky
patent: 3980579 (1976-09-01), Syrop

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