Composition for a resin

Details Composition for a resin Composition for a resin

1999-02-01

2000-10-10

Sergent, Rabon

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...

528 69, C08G 1838, C08G 1858, C08G 1871

Patent

active

061303070

ABSTRACT:
A composition for a resin comprising (a) a sulfur-containing compound having in one molecule one or more episulfide groups and/or epoxy groups and (b) a compound having in one molecule one or more isocyanate groups and/or thioisocyanate groups. The composition is useful as an optical material such for a plastic lens for glasses, since the composition exhibits an excellent balance between refractivity index and Abbe number and has a high impact resistance.

REFERENCES:
patent: 3883596 (1975-05-01), Hager et al.
patent: 5374668 (1994-12-01), Kanemura et al.
patent: 5807975 (1998-09-01), Amagai et al.
patent: 5945504 (1999-08-01), Amagi et al.

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