Abrasion and antifog-resistant optical element

Details Abrasion and antifog-resistant optical element Abrasion and antifog-resistant optical element

1976-08-24

1977-12-20

Ansher, Harold

Stock material or miscellaneous articles

Surface property or characteristic of web, sheet or block

Surface modified glass

35075R, 351166, 427166, 427168, 427169, 427299, 428412, 428539, 428543, 428913, C08J 712, G02B 110, G02C 702, B32B 1706

Patent

active

040643085

ABSTRACT:
An optical element is provided having a durable abrasion-resistant, antifog coating applied to at least one surface thereof by coating an optical element comprised of an inorganic or organic transparent base with a transparent abrasion-resistant antifog coating consisting of a lightly cross-linked polyvinyl alcohol, the desired degree of cross-linking being obtained by utilizing a combination of zirconium nitrate and formaldehyde as cross-linking agents.

REFERENCES:
patent: 2310223 (1943-02-01), Eaton et al.
patent: 2455936 (1948-12-01), Lowe
patent: 3318856 (1967-05-01), Deyrup
patent: 3525636 (1970-08-01), Bofart
patent: 3652328 (1972-03-01), Dork et al.
patent: 3700487 (1972-10-01), Crandon et al.
patent: 3840482 (1974-10-01), Bolto et al.
patent: 3933407 (1976-01-01), Tu et al.
patent: 3971872 (1976-07-01), Le-Boeuf
patent: 3986997 (1976-10-01), Clark
patent: 4027073 (1977-05-01), Clark

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