Polyurethane plastics containing thio groups

Details Polyurethane plastics containing thio groups Polyurethane plastics containing thio groups

1979-12-26

1981-03-03

Cockeram, H. S.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

521159, 528 64, 528 68, 560 18, C08G 1814, C08G 1832, C07C14940

Patent

active

042542294

ABSTRACT:
The instant invention is directed to polyurethane plastics which may be cellular, produced by reaction of polyisocyanates with relatively high molecular weight polyhydroxyl compounds and, optionally, low molecular weight polyhydroxyl compounds, and diamines, said polyurethane plastic containing structural units corresponding to the general formula ##STR1## in which R' represents a straight or branched divalent aliphatic, cycloaliphatic or aromatic radicals containing from 2 to 20 carbon atoms and

REFERENCES:
patent: 3538228 (1970-11-01), Nair
patent: 3586649 (1971-06-01), Cobbledick
patent: 3655597 (1972-04-01), Strassel
patent: 3736295 (1973-05-01), Meckel et al.
patent: 3789072 (1974-01-01), Bernstein
patent: 3897400 (1975-07-01), Finelli
patent: 3905944 (1975-09-01), Finelli
patent: 3920617 (1975-11-01), Hirosawa et al.
patent: 4031049 (1977-06-01), Hirosawa et al.

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