Novel optical material

Details Novel optical material Novel optical material

1989-11-21

1991-08-27

Lipman, Bernard

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

5253329, 5253331, 5253332, 525338, 525339, 525353, 525371, C08F 848

Patent

active

050433954

ABSTRACT:
There is disclosed an optical material comprising a cyclization product of a conjugated diene polymer having a cyclization ratio of not less than 80% or a hydrogenated product thereof.

REFERENCES:
patent: 4242471 (1980-12-01), Lal
patent: 4508877 (1985-04-01), Todoko et al.
patent: 4678841 (1987-07-01), Yoshizawa et al.
J. Macromol. Sci-Chem., A2 (2) pp. 421-446, Mar., 1968.

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