Photochromic composition and method producing photochromic cured

Details Photochromic composition and method producing photochromic cured Photochromic composition and method producing photochromic cured

1995-04-25

1997-04-15

Chapman, Mark

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

Synthetic resins

Compositions to be polymerized by wave energy wherein said...

522 26, 252586, C08F 246, G02B 523

Patent

active

056210175

ABSTRACT:
A photochromic composition which can be polymerized and cured upon irradiation with active energy rays such as ultraviolet rays to exhibit favorable photochromic property. The photochromic composition comprises 100 parts by weight of a radical polymerizable monomer, 0.001 to 0.2 parts by weight of a photochromic compound, and 0.01 to 1 part by weight of a photo polymerization 1.0 initiator. A photochromic cured product is obtained by irradiating the photochromic composition with the light which contains ultraviolet rays.

REFERENCES:
patent: 5230986 (1993-07-01), Neckers
patent: 5395566 (1995-03-01), Kobayakawa et al.
Patent Abstracts of Japan, vol. 13, No. 510 (C-654) Nov. 15, 1989, Abstract of Jap. Laid-Open Pat. Publ. No. 1-204902 (Aug. 17, 1989).
Patent Abstracts of Japan, vol. 16, No. 551 (P-1453) Nov. 20, 1992, Abstract of Jap. Laid-Open Pat. Publ. No. 4-208919 (Jul. 30, 1992).

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