- SILICONE-COMPATIBLE COMPOUNDS
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Compounds represented by the following Formula (I) : wherein : R1, R2, R3, R4, and R5 are the same or different and are selected from the group consisting of SIL1-X, hydrogen, C1-C20 alkyl, C2-C8alkenyl, C5-C8cycloalkyl, phenyl C1-C3 alkyl, and fluorine; X is optional, and if present is C1-C12 alkyl; SIL1 has the general formula : (R7 SiO3/2) a (R72 SiO2/2) b (R73 SiO1/2) c wherein : R7 is selected from the group consisting of C1-C20 alkyl, C2-C8alkenyl, C5-C8cycloalkyl, alkoxyl, phenyl, and phenyl C1-C3 alkyl; a is a positive number, b is 0 or a positive number, c is 0 or a positive number, b/a is from 0 to 100, and c/a is from 0 to 10, wherein at least one of R1, R2, R3, R4, and R5 is SIL1-X; and R6 is selected from the group consisting of C1-C20 alkyl, C2-C8alkenyl, C5-C8cycloalkyl, phenyl, phenyl C1-C3 alkyl, trimethylphenol, and fluorine, a method to produce these compounds, and the use thereof as a photoinitiator.
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- TRI-FUNCTIONAL UV-ABSORBING COMPOUNDS AND USE THEREOF
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Described herein are tri-functional compounds useful in the production of ophthalmic lenses. The compounds are composed of UV absorber having a polymerization initiator directly or indirectly bonded to the ultraviolet absorber, and an olefinic group direc
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Page/Page column 17; 18
(2010/07/08)
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