Lens materials of high refractive indexes

Details Lens materials of high refractive indexes Lens materials of high refractive indexes

1985-06-19

1987-02-17

Wong, Jr., Harry

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

350409, 526291, 5262923, 5262924, 5262925, C08F21416

Patent

active

046440259

ABSTRACT:
Compositions each comprising a copolymer of a specific allylic or (meth)acrylic compound of an iodine-substituted benzoic acid derivative and a comonomer have a refractive index n.sub.D.sup.20 of at least 1.58 and an Abbe's number of at least 28 and are excellent starting materials for the production of high quality lenses.

REFERENCES:
patent: 2465316 (1949-03-01), Mowry et al.
patent: 3128300 (1964-04-01), Miller et al.

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