Patent ID: 7273650
Filing Date: 2007-09-25
Classification: B32B,C08J,F02B,Y02P,Y10T

Abstract:
1. An article comprising; (A) a fluorescent polymeric layer comprising a fluorescent dye; and (B) an ultraviolet light screening layer comprising a polymeric resin, said polymeric resin comprising at least one polymer, or a mixture thereof, selected from the group consisting of: (i) polymers having a polymeric backbone comprising the following repeating moiety A; wherein R is a non-interfering substitutent and P is the remainder of the polymer; and whereby the polymers are able to absorb ultraviolet light; and (ii) polymers having a polymeric backbone comprising the following repeating moiety B: wherein R is a non-interfering substituent and P is the remainder of the polymer; said moiety B being transformable to said moiety A by photo-Fries rearrangement, whereby said polymer comprising moiety B can be transformed to an ultraviolet light absorbing polymer comprising moiety A.