Ultraviolet light absorbing compounds, silicone compositions and methods for making same
First Claim
1. A compound having one of the following formulas ##STR24## and mixtures thereof, wherein B is ##STR25## each x is independently selected from the group consisting of H, monovalent hydrocarbon radicals, monovalent substituted hydrocarbon radicals, hydroxyl radicals, amino radicals, carboxyl radicals, alkoxy radicals, substituted alkoxy radicals, and halogen radicals;
- each R1 is independently selected from the group consisting of H, alkyl radicals, alkoxy radical, hydroxyl radicals, amino radicals and carboxyl radicals;
R2 is selected from the group consisting of divalent hydrocarbon radicals, divalent substituted hydrocarbon radicals, oxo, divalent oxyhydrocarbon radicals and divalent substituted oxyhydrocarbon radicals;
each R3 is independently selected from the group consisting of alkyl radicals, substituted alkyl radicals, alkoxy radicals, substituted alkoxy radicals, H, alkenyl radicals, substituted alkenyl radicals, R2 -B, aryl radicals, substituted aryl radicals and fluoro radical;
R is selected from the group consisting of H, alkenyl radicals and substituted alkenyl radicals, alkenoxy radicals, substituted alkenoxy radicals, acryloxy alkyl radicals and substituted acryloxy alkyl radicals;
each R4 is independently selected from the group consisting of R and R3, provided that at least one of the R4 s is R;
c is an integer in the range of 1 to about 10,000; and
d is an integer in the range of 0 to about 100.
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Abstract
An ultraviolet light absorbing silicone composition is disclosed which comprises silicone base polymer and ultraviolet light absorbing component present as, or derived from, one or more silicon-containing ultraviolet light absorbing benzotriazole derivatives. Also disclosed are methods for producing such silicone compositions and derivatives. Such silicone compositions, which are preferably optically clear, are useful as lens materials.
46 Citations
17 Claims
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1. A compound having one of the following formulas ##STR24## and mixtures thereof, wherein B is ##STR25## each x is independently selected from the group consisting of H, monovalent hydrocarbon radicals, monovalent substituted hydrocarbon radicals, hydroxyl radicals, amino radicals, carboxyl radicals, alkoxy radicals, substituted alkoxy radicals, and halogen radicals;
- each R1 is independently selected from the group consisting of H, alkyl radicals, alkoxy radical, hydroxyl radicals, amino radicals and carboxyl radicals;
R2 is selected from the group consisting of divalent hydrocarbon radicals, divalent substituted hydrocarbon radicals, oxo, divalent oxyhydrocarbon radicals and divalent substituted oxyhydrocarbon radicals;
each R3 is independently selected from the group consisting of alkyl radicals, substituted alkyl radicals, alkoxy radicals, substituted alkoxy radicals, H, alkenyl radicals, substituted alkenyl radicals, R2 -B, aryl radicals, substituted aryl radicals and fluoro radical;
R is selected from the group consisting of H, alkenyl radicals and substituted alkenyl radicals, alkenoxy radicals, substituted alkenoxy radicals, acryloxy alkyl radicals and substituted acryloxy alkyl radicals;
each R4 is independently selected from the group consisting of R and R3, provided that at least one of the R4 s is R;
c is an integer in the range of 1 to about 10,000; and
d is an integer in the range of 0 to about 100. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
- each R1 is independently selected from the group consisting of H, alkyl radicals, alkoxy radical, hydroxyl radicals, amino radicals and carboxyl radicals;
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9. A compound having the formula ##STR26## wherein B is ##STR27## each x is independently selected from the group consisting of H, monovalent hydrocarbon radicals, monovalent substituted hydrocarbon radicals, hydroxyl radicals, amino radicals, carboxyl radicals, alkoxy radicals, substituted alkoxy radicals, and halogen radicals;
- each R1 is independently selected from the group consisting of H, alkyl radicals, alkoxy radical, hydroxyl radicals, amino radicals and carboxyl radicals;
R2 is selected from the group consisting of divalent hydrocarbon radicals, divalent substituted hydrocarbon radicals, oxo, divalent oxyhydrocarbon radicals and divalent substituted oxyhydrocarbon radicals;
each R4 is independently selected from the group consisting of alkyl radicals, substituted alkyl radicals, alkoxy radicals, substituted alkoxy radicals, H, alkenyl radicals, substituted alkenyl radicals, R2 -B, aryl radicals, substituted aryl radicals, fluoro radical, alkenoxy radicals, substituted alkenoxy radicals, acryloxy alkyl -radicals and substituted acryloxy alkyl radicals, provided that at least one of the R4 s is selected from the group consisting of H, alkenyl radicals, substituted alkenyl radicals, alkenoxy radicals, substituted alkenoxy radicals, acryloxy alkyl radicals and substituted acryloxy alkyl radicals; and
d is an integer in the range of 0 to about 100. - View Dependent Claims (10, 11, 12, 13)
- each R1 is independently selected from the group consisting of H, alkyl radicals, alkoxy radical, hydroxyl radicals, amino radicals and carboxyl radicals;
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14. A method for producing an ultraviolet light absorbing compound comprising:
contacting a functional benzotriazole derivative with a siloxane component having at least two functional hydride groups at conditions effective to chemically react the functional group of the benzotriazole derivative with one of the hydride groups of the siloxane component, thereby forming a hydride functional benzotriazole derivative. - View Dependent Claims (15, 16, 17)
Specification