Temperature stable and sunlight protected photochromic articles

Details Temperature stable and sunlight protected photochromic articles Temperature stable and sunlight protected photochromic articles

1992-08-19

1994-07-19

Tucker, Philip

Compositions

Light transmission modifying compositions

Displaying color change

524 89, G02B 523, C08K 534

Patent

active

053306864

ABSTRACT:
Described is a photochromic composition which is a polymerizate of acrylate monomer(s), a crosslinking amount of anhydrous acrylic anhydride and/or anhydrous methacrylate anhydride and a photochromic amount of pyrido benzoxazine. Depending on the amount of crosslinking agents and the other components selected to form the polymerizate, the polymerizate will exhibit improved temperature stability with regard to photocolorability and/or prevention of activation in sunlight.

REFERENCES:
patent: 3764477 (1973-10-01), Lehmann et al.
patent: 4408016 (1983-10-01), Eads et al.
patent: 4637698 (1987-01-01), Kwak et al.
patent: 4720547 (1988-01-01), Kwak et al.
patent: 4913544 (1990-04-01), Rickwood et al.
patent: 4931219 (1990-06-01), Kwiatkowski et al.
patent: 4931220 (1990-06-01), Haynes et al.
patent: 4931220 (1990-06-01), Haynes et al.
patent: 4935330 (1990-06-01), Hoffman et al.
patent: 4968454 (1990-11-01), Crano et al.
patent: 5000878 (1991-03-01), Chu
patent: 5098974 (1992-03-01), Kania et al.

Affiliated with

Also associated with

Rating

Temperature stable and sunlight protected photochromic articles does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Temperature stable and sunlight protected photochromic articles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Temperature stable and sunlight protected photochromic articles will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-518037