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US 6,635,353 B2Granted
Aminosilane coating composition and process for producing coated articles
AssigneeVision-Ease Lens, Inc.
InventorMartin L. Hage
Life of this patent
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Abstract
A novel siloxane polymer having at least a portion of the following formula: wherein R13 is selected from hydrogen, lower alkyl group, benzyl, and phenyl group; R14 and R15 are independently alkylene groups of 1 to 6 carbon atoms, xylylene, and phenylene groups of 6 to 12 carbon atoms, and; m and n are integers independently selected from 1 through 6. These polymers are useful as abrasion resistant coatings, especially for ophthalmic lenses.
Claims18
A siloxane polymer comprising repeating elements of the formula selected from the group consisting of:
- wherein R13 is selected from the group consisting of hydrogen, lower alkyl group, benzyl, and phenyl group;
- R14 and R15 are independently selected from the group consisting of alkylene groups of 1 to 6 carbon atoms, xylylene, and phenylene groups of 6 to 12 carbon atoms,
- X is a halidc anion, and;
- m and n are independently selected from 1, 2, 3, 4, 5, and 6.
1 more element
Dependencies are inferred from the claim text.