Abrasion-resistant optical element

Details Abrasion-resistant optical element Abrasion-resistant optical element

1977-06-23

1978-10-17

Hoffman, James R.

Coating processes

Optical element produced

Transparent base

427 44, 427162, B05D 302, B05D 306, B05D 310, G02B 110

Patent

active

041209923

ABSTRACT:
An abrasion-resistant organic optical element comprising a transparent base of a synthetic organic material having an adhering coating of an abrasion-resistant material comprising a polysilicic acid ester of an alcohol containing from 1 to 12 carbon atoms and a partially hydrolyzed vinyl polymer to provide polyvinyl alcohol, the coating being cross-linked with formaldehyde or zirconyl nitrate or mixtures thereof. The abrasion-resistant organic optical elements can comprise sheet material or a lens.

REFERENCES:
patent: 3652379 (1972-03-01), White et al.
patent: 3953115 (1976-04-01), French et al.
patent: 3971872 (1976-07-01), LeBoeuf

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