Urethanized acrylic resin material for plastic lens and lens com

Details Urethanized acrylic resin material for plastic lens and lens com Urethanized acrylic resin material for plastic lens and lens com

1983-09-21

1984-12-11

Schofer, Joseph L.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C08F 2602, C08F12602, C08F22602

Patent

active

044879040

ABSTRACT:
A polymer obtained by polymerizing a urethanized acrylic or methacrylic monomer obtained by reacting the hydroxyl group of an acrylic or methacrylic monomer having a nucleus-halogen-substituted aromatic ring and a hydroxyl group with the isocyanate group of a polyfunctional isocyanate is excellent and has a high refractive index. Accordingly, this polymer is valuable as a resin material for a plastic lens.

REFERENCES:
patent: 3786034 (1974-01-01), Blair et al.
patent: 4098918 (1978-07-01), De Majistre
patent: 4347174 (1982-08-01), Nagase et al.

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