Optical resin obtained from diethylenically unsaturated monomer

Details Optical resin obtained from diethylenically unsaturated monomer Optical resin obtained from diethylenically unsaturated monomer

1991-06-05

1993-07-06

Henderson, Christopher

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

359642, 568 57, C08F 2804

Patent

active

052255085

ABSTRACT:
Disclosed are a diethylenicallyunsaturated monomer represented by the following formula [Ia]: ##STR1## wherein n is an integer of from 1 to 10, and a and b each represent 0 or an integer of from 1 to 4,
and an optical resin which is substantially insoluble and infusible and has a refractive index .eta..sub.D of at least 1.62, and which is obtained by polymerizing a monomer comprising 50 to 100% by weight of this diethylenically unsaturated monomer.

REFERENCES:
patent: 2163176 (1939-06-01), Keyssner
patent: 2888442 (1959-05-01), Uraneck
Chemical Abstract No. 113 (20): 178316x (1990) Kawaki et al.

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