Coating composition, process for producing optical element using the same, and optical element produced thereby
AssigneeHoya Corporation
InventorHiroshi Shirakawa
Life of this patent
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Abstract
A coating composition includes an organosilicon compound and an adhesion improver made of at least one compound selected from acetylene compounds of the general formulas (I-a) to (I-d): wherein Ra and Rc each independently represents a hydrogen atom or an optionally branched alkyl group having from 1 to 5 carbon atoms; Rb and Rd each independently represents an optionally branched alkyl group having from 2 to 8 carbon atoms; Re and Rf each independently represents an optionally branched alkyl group having from 1 to 3 carbon atoms; m and n each indicate an integer of 1 or more; and m′ and n′ each indicate an integer of 0 or more.
Claims10
A coating composition adapted to be cured to form a cured film between a plastic substrate and an antireflection film made of an inorganic oxide, comprising an organosilicon compound, fine inorganic oxide particles and an adhesion improver made of at least one member selected from acetylene compounds of general formulas (I-a) to (I-d)
- wherein Ra and Rc each independently represents a hydrogen atom, or an optionally branched alkyl group having from 1 to 5 carbon atoms;
- Rb and Rd each independently represents an optionally branched alkyl group having from 2 to 8 carbon atoms;
- Re and Rf each independently represents an optionally branched alkyl group having from 1 to 3 carbon atoms;
- m and n each indicate an integer of 1 or more;
- and m′ and n′ each indicate an integer of 0 or more.
Dependencies are inferred from the claim text.