Abrasion resistant coating for polycarbonate substrates

Coating processes – Optical element produced – Transparent base

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

260 465UA, 350175NG, 351166, 427 40, 427341, 427377, 427379, 427387, 428412, 428447, B32B 2728, G02C 702

Patent

active

040062716

ABSTRACT:
A process is disclosed for applying an adherent, optically clear, abrasion resistant coating to polycarbonate substrates such as lenses. The process includes: (a) forming a coating solution containing 25-75% of a hydrolyzed C.sub.1 -C.sub.2 alkyltri(lower alkoxy)silane, such as methyltriethoxysilane, in a water-miscible, volatile, organic solvent, and also containing small amounts of an abrasion-resistance enhancer and a stabilizing weak acid; (b) applying a thin, uniform coating of the coating solution to a clean surface of the polycarbonate substrate; and, (c) dehydrating the coated substrate under low humidity conditions at an elevated temperature below the temperature at which the substrate degrades until an adherent, abrasion resistant coating is formed.

REFERENCES:
patent: 3458342 (1969-07-01), Cormia
patent: 3637416 (1972-01-01), Misch et al.
patent: 3650808 (1972-03-01), Gagnon
patent: 3708225 (1973-01-01), Misch et al.
patent: 3713880 (1973-01-01), Krekeler
patent: 3953115 (1976-04-01), French et al.
patent: 3955035 (1976-05-01), Ito et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Abrasion resistant coating for polycarbonate substrates does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Abrasion resistant coating for polycarbonate substrates, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Abrasion resistant coating for polycarbonate substrates will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1092101

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.