Method of preparing non-friable rigid polyurethane foam

Details Method of preparing non-friable rigid polyurethane foam Method of preparing non-friable rigid polyurethane foam

1975-01-30

1976-08-17

Cockerman, H.S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 75NC, 260 775AC, C08G 1814, C08G 1824, C08G 1818

Patent

active

039753174

ABSTRACT:
The friability of rigid polyurethane foams prepared using a chlorine- or bromine-containing polyol is significantly reduced or eliminated by the use of a dimethyltin-S,S'-bis(alkylmercaptocarboxylate) as the polymerization catalyst.

REFERENCES:
patent: 3582501 (1971-06-01), Hostettler et al.
patent: 3726855 (1973-04-01), Lapkin
patent: 3732176 (1973-05-01), Hostettler et al.
patent: 3808162 (1974-04-01), Allen et al.

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