Rapid setting polyurethanes from diols and polyfunctional isocya

Details Rapid setting polyurethanes from diols and polyfunctional isocya Rapid setting polyurethanes from diols and polyfunctional isocya

1973-12-07

1976-12-28

Michl, Paul R.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C08K 545

Patent

active

040001032

ABSTRACT:
Mixtures comprising a low molecular weight diol, a liquid modifier compound having a boiling point above about 150.degree. C, such as a cyclic sulfone, a polyisocyanate having a functionality of at least about 2.5 and an organometallic catalyst instantly set, after a brief induction period, to a solid, dense, rigid polymeric product which can be demolded within a period of from less than 1 minute to about 5 minutes.

REFERENCES:
patent: 3058993 (1962-10-01), Carboni
patent: 3075927 (1963-01-01), Lanham
patent: 3102875 (1963-09-01), Heiss
patent: 3143517 (1964-08-01), Heiss
patent: 3489723 (1970-01-01), Kraft
patent: 3499858 (1970-03-01), Strassel

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