Optically transparent photochromic plastic material

Details Optically transparent photochromic plastic material Optically transparent photochromic plastic material

1994-12-09

1996-03-12

Clark, W. Robinson H.

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 59, 544 71, 544 72, C07D26502, C07D26504, C07D26512

Patent

active

054986869

ABSTRACT:
An optically transparent photochromic plastic material is described which is comprised of materials with a sulphur content and which via polymerization processes contains photochromic organic compounds as solid ingredients, which possess at least two ring systems linked via carbon atom and whose photochromic tint is based on a reversible bond rupture to the spiro-C atom.

REFERENCES:
patent: 4720547 (1988-01-01), Kwak et al.
patent: 4785097 (1988-11-01), Kwak
patent: 4816584 (1989-03-01), Kwak et al.
patent: 4831142 (1989-05-01), Kwak
patent: 4909963 (1990-03-01), Kwak et al.
patent: 5130353 (1992-07-01), Fischer et al.
patent: 5221721 (1993-06-01), Selvig
patent: 5244602 (1993-09-01), Van Gemert
patent: 5340857 (1994-08-01), Van Gemert
patent: 5374723 (1994-12-01), Yamamoto et al.

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