Storage-stable precursors for rigid polyurethane foams

Details Storage-stable precursors for rigid polyurethane foams Storage-stable precursors for rigid polyurethane foams

1976-05-20

1979-01-23

Padgett, Benjamin R.

Compositions

Compositions containing a single chemical reactant or plural...

Organic reactant

2604297, 521121, 521115, 521112, 521175, C08K 557, C08K 517

Patent

active

041360460

ABSTRACT:
Diorganotin compounds wherein at least one of the remaining valences on the tin atom is satisfied by a sulfur atom or a thiocyanate group are unique among diorganotin compounds in that they retain their catalytic activity over extended periods of time in the presence of the precursors or masterbatches conventionally employed to prepare rigid, cellular polyurethanes.

REFERENCES:
patent: 3194773 (1965-07-01), Hostettler
patent: 3392153 (1968-07-01), Hostettler et al.
patent: 3620985 (1971-11-01), Larkin et al.
patent: 3822223 (1974-07-01), Gemeinhardt et al.
patent: 3876567 (1975-04-01), Larkin et al.

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