Optical: systems and elements – Mirror – With selective absorption or transparent overcoating
Patent
1994-06-17
1996-05-21
Dzierzynski, Paul M.
Optical: systems and elements
Mirror
With selective absorption or transparent overcoating
359883, 428357, 428417, 428418, G02B 508, C09J 704
Patent
active
055195423
ABSTRACT:
The invention relates to a coating composition for preparing a back coating film of a mirror. The mirror has a glass substrate, a silver mirror film formed on a back surface of the glass substrate, a metallic protective film formed on the silver mirror film, and the back coating film formed on the metallic protective film. The coating composition comprises: a binder consisting of 40 to 85 parts by weight of the total of an epoxy resin and a hardener of the epoxy resin, and 15 to 60 parts by weight of at least one selected from the group consisting of a ketone formaldehyde resin and its derivatives; and a pigment blend containing 7-55 wt % of a corrosion-inhibitive pigment based on the weight of the pigment blend. The weight ratio of the pigment blend to the binder is in the range from 1.2 to 4.0. The back coating film is superior in chemical resistance and corrosion resistance even if a lead-free corrosion-inhibitive pigment is used.
REFERENCES:
patent: 4482209 (1989-11-01), Grewal et al.
patent: 5216551 (1993-06-01), Fujii
Aonuma Hidenori
Hayashi Ken-ichi
Mitsuda Keiji
Mizutani Tutomu
Murakami Minoru
Central Glass Company Limited
Dzierzynski Paul M.
Sikd-er Mohammad Y.
LandOfFree
Coating composition for preparing back coating film of mirror does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Coating composition for preparing back coating film of mirror, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Coating composition for preparing back coating film of mirror will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2043145