Coating processes – Optical element produced – Transparent base
Patent
1976-08-12
1977-10-04
Smith, Ronald H.
Coating processes
Optical element produced
Transparent base
427248C, 427248J, 427296, 427322, 428412, 350175NG, 351166, B05D 310, B05D 500
Patent
active
040525201
ABSTRACT:
There is disclosed a process for improving the adhesion of an evaporable glass coating on a synthetic polymer sheet material by the application of a base vitreous coating of a mixture of silicon dioxide and silicon monoxide by evaporating silicon monoxide under vacuum in an oxygen atmosphere so that in addition to silicon monoxide, a silicon dioxide condensate is condensed on the outer surface of the sheet. An outer vitreous coating is subsequently applied over said base coating. The evaporative glass outer coating can be formed essentially from boron oxide and silicon dioxide containing less than 5% by weight of sodium oxide. The evaporative glass coating can also be of fused silica, or a boro-silicate glass sold under the trademark "Pyrex".
REFERENCES:
patent: 3200019 (1965-08-01), Scott, Jr. et al.
patent: 3356522 (1967-12-01), Libbert
patent: 3458342 (1969-07-01), Cormia
patent: 3546013 (1970-12-01), Perri et al.
patent: 3567686 (1971-03-01), White et al.
patent: 3607378 (1971-09-01), Ruggiero
patent: 3645779 (1972-02-01), Klenel
patent: 3652379 (1972-03-01), White et al.
patent: 3681132 (1972-08-01), Pammer et al.
patent: 3700487 (1972-10-01), Crandon et al.
patent: 3991234 (1976-11-01), Chang et al.
Chang Leei
Verburg John A.
American Optical Corporation
Berkenstock, Jr. Howard R.
Lawrence Evan K.
Smith Ronald H.
LandOfFree
Process for coating a synthetic polymer sheet material with a du does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for coating a synthetic polymer sheet material with a du, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for coating a synthetic polymer sheet material with a du will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1775674