S-alkyl thiocarbamate base lens resin

Details S-alkyl thiocarbamate base lens resin S-alkyl thiocarbamate base lens resin

1986-03-24

1987-08-25

Welsh, Maurice J.

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...

350321, 528 80, 528 81, 528 85, C08G 1838

Patent

active

046893873

ABSTRACT:
An S-alkyl thiocarbamate base lens resin is obtained by reacting one or more NCO-containing compounds, such as xylylene diisocyanate, hexamethylene diisocyanate and/or tetrachloroxylylene diisocyanate, with one or more SH-containing aliphatic compounds, for example, a di(2-mercaptoalkyl) ether.

REFERENCES:
patent: 3114734 (1963-12-01), Gobran et al.

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