Method for deactivating the catalyst in a polyurethane prepolyme

Details Method for deactivating the catalyst in a polyurethane prepolyme Method for deactivating the catalyst in a polyurethane prepolyme

1976-04-07

1977-05-31

Cockeram, H.S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 457R, 260 775SS, C08G 1882, C08G 1810, C08K 502

Patent

active

040268756

ABSTRACT:
A method of manufacturing polyurethane prepolymers containing free, reactive end groups of polyisocyanate and compounds with active H-atoms, while using a tertiary amine as the catalyst, and thereafter deactivating the catalyst by reacting with an alkyl halide.

REFERENCES:
patent: 2692873 (1954-10-01), Langerak et al.
patent: 2817643 (1957-12-01), Altner
patent: 3479325 (1969-11-01), Blomeyer et al.
patent: 3497457 (1970-02-01), Hurlock et al.
patent: 3660341 (1972-05-01), Dinbergs
Hackh's Chemical Dictionary, 4th Edition, McGraw-Hill, New York, (1969) p. 667.

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