Process for the preparation of polyurethane casting elastomers

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From reactant having at least one -n=c=x group as well as...

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521121, 521124, 521125, 521126, 528 56, 528 57, 528 58, C08G 1822, C08G 1824, C08G 1826, C08G 1816

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042634237

ABSTRACT:
The instant invention is directed to a process for the production of a light fast, transparent polyurethane elastomer comprising reacting:

REFERENCES:
patent: 2897181 (1959-07-01), Windemuth
patent: 3108975 (1963-10-01), Lambert et al.
patent: 3516950 (1970-06-01), Haggis
patent: 3645927 (1972-02-01), Andres et al.
patent: 3892715 (1975-07-01), Bonin et al.
patent: 3945981 (1976-03-01), Robertson
patent: 3975317 (1976-08-01), Russo
patent: 4067832 (1978-01-01), Des Marais
patent: 4101471 (1978-07-01), Russo
D.A.S. 1,745,418, San-Abott (Hashinoto et al.) Sept. 9, 1971.

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