Optical elements having cured coating film

Details Optical elements having cured coating film Optical elements having cured coating film

1993-07-07

1995-12-05

Ryan, Patrick J.

Stock material or miscellaneous articles

Composite

Of inorganic material

4289088, 428689, 428701, 428702, 428403, 428404, 1062864, 106441, 106450, 106479, B32B 900

Patent

active

054727979

ABSTRACT:
An optional element having a cured coating film on optical base material wherein the cured coating film is prepared with a coating composition comprising an organosilicon compound and modified stannic oxide-zirconium oxide composite colloidal particles which are obtained by partially or fully coating the surface of stannic oxide-zirconium oxide composite colloidal particles with tungstic oxide-stannic oxide composite colloidal particles. The formed cured coating film is excellent in hot water resistance, and light-resistance and weathering resistance are not impaired even when the antireflection film made by vepor deposition of inorganic oxides is applied on the cured coating film.

REFERENCES:
patent: 4495276 (1985-01-01), Takimoto
patent: 4571365 (1986-02-01), Ashlock et al.
patent: 4637953 (1987-01-01), Sawamura
patent: 5094691 (1992-03-01), Watanabe et al.
patent: 5165992 (1992-11-01), Yajima
patent: 5188667 (1993-02-01), Watanabe et al.
patent: 5225057 (1993-07-01), LeFebvre

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