Process for coating glass onto polymeric substrates

Details Process for coating glass onto polymeric substrates Process for coating glass onto polymeric substrates

1974-09-03

1976-04-27

Weiffenbach, Cameron K.

Stock material or miscellaneous articles

Composite

Of polycarbonate

427 42, 427164, 427248, 428426, B32B 1706

Patent

active

039536521

ABSTRACT:
Improved techniques for vacuum evaporating glass, using an electron beam to vaporize the glass, onto a polymeric substrate is disclosed. Suitable substrates include ophthalmic lenses formed from polymeric materials such as polymerized CR-39 resin.
The improved technique necessitates the maintenance of certain critical coating conditions. These conditions are: (a) low background pressures; and, (b) an angle of glass vapor impringement below about 40.degree., measured from the normal; and, (c) an elevated substrate temperature. Additionally, the source glass has a relatively low water content and a relatively low thermal coefficient of expansion.

REFERENCES:
patent: 3645779 (1972-02-01), Kienel
patent: 3713869 (1973-01-01), Geffcken

Affiliated with

Also associated with

Rating

Process for coating glass onto polymeric 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 Process for coating glass onto polymeric substrates, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for coating glass onto polymeric substrates will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2003875