Method for color television picture tube aperture mask productio

Details Method for color television picture tube aperture mask productio Method for color television picture tube aperture mask productio

1978-10-16

1980-06-17

Massie, Jerome W.

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

134 2, 134 20, 156904, 430 29, 430323, 430329, 430511, C23F 102, G03C 500

Patent

active

042082420

ABSTRACT:
A method for producing etched metal bodies, particularly color television picture tube aperture masks, comprises the steps of applying a polyvinyl alcohol photoresist film to the metal substrate, exposing the film, developing the image produced by exposure, heat hardening the developed image, acid etching the metal body, heating the body to caramelize the remaining film, and stripping the caramelized film from the metal body using an aqueous caustic stripping solution. The heat caramelization step greatly enhances the caustic strippability of heat hardened polyvinyl alcohol films from metallic surfaces.

REFERENCES:
patent: 3081203 (1963-03-01), Beuscher
patent: 3175907 (1965-03-01), Fishman
patent: 3415648 (1968-12-01), Certa
patent: 3672893 (1972-06-01), Robinder et al.
patent: 3767490 (1973-10-01), Alberts
patent: 3770434 (1973-11-01), Law
patent: 3796603 (1974-03-01), Cox et al.
patent: 3980587 (1976-09-01), Sullivan
patent: 4018627 (1977-04-01), Polata
An Introduction to Photofabrication using Kodak Photosensitive Resists, Eastman Kodk. Co., Rochester, N.Y., pp. 24-27, (1967).

Affiliated with

Also associated with

Rating

Method for color television picture tube aperture mask productio does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for color television picture tube aperture mask productio, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for color television picture tube aperture mask productio will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-473763