Patent ID: 7763265
Filing Date: 2010-07-27
Classification: A61K,A61Q,C08L

Abstract:
1. A composition comprising a polyester matrix having therein an amount of UV absorbing composition sufficient to provide a UV transmission of about 20% or less at about 390 nm, wherein the polyester matrix comprises polyethylene terephthalate (PET), and wherein the UV absorbing composition comprises polyethylene naphthalate (PEN) and less than 2000 ppm by weight of a polyoxyalkylene UV absorber conforming to the structure represented by Formula (I) wherein R 1 , R 2 , R 3 , R 4 , and R 5 are the same or different and are selected from the group consisting of C 1-20 alkyl, halo, hydroxyl, hydrogen, cyano, sulfonyl, sulfo, sulfato, aryl, nitro, carboxyl, C 1-20 alkoxy, and B-A, wherein at least one of R 1 , R 2 , R 3 , R 4 , and R 5 is B-A, wherein B is selected from the group consisting of N, O, S, SO 2 , SO 3 , CO 2 , and A is represented by the Formula (II) wherein ‘polyoxyalkylene constituent’ is selected from the group consisting of at least three monomers of at least one C 2-20 alkyleneoxy group, glydicol, glycidyl, or mixtures thereof, R′ is selected from the group consisting of hydrogen, C 1-20 alkoxy, C 1-20 alkyl, and C 1-20 esters; wherein if B is N, then Z is 2, and if B is other than N, then Z is 1; X and Y are the same or different and are selected from the group consisting of hydrogen, cyano, C(O)OR, C(O)R, C(O)NR″R′″, C 1-20 alkyl, and C 1-20 alkoxy, or X and Y are combined to form a ring system, and R, R″, and R′″ are defined as above for any of R 1 , R 2 , R 3 , R 4 , and R 5 ; and wherein if X and Y are not combined to form a ring system then at least one of said X and Y is either cyano or hydrogen; wherein the polyoxyalkylene UV absorber forms either of (i) a chemical bond with or (ii) an interaction with the polyethylene naphthalate.