Radiation imagery chemistry: process – composition – or product th – Transfer procedure between image and image layer – image... – Diffusion transfer process – element – or identified image...
Patent
1978-11-13
1980-02-12
Brown, J. Travis
Radiation imagery chemistry: process, composition, or product th
Transfer procedure between image and image layer, image...
Diffusion transfer process, element, or identified image...
1564422, 222 92, 222107, 260DIG37, G03C 148, G03C 554, B43M 300, B65D 3514
Patent
active
041882199
ABSTRACT:
Disclosed herein are containers useful for holding fluids, e.g. photographic processing materials, in photographic film units. Such containers have strong seals along certain marginal areas and relatively weak seals along other marginal areas. Such weak seals are designed to open and distribute fluid over a sheet of film or paper when pressure is applied to the container in a camera. Each weak seal is formed from a sealing composition comprising a copolymer of (a) at least about 50 percent, by weight, of a polymerizable monomer having the formula (I): ##STR1## wherein n is an integer of from 0 to 3; R.sup.1 is hydrogen or alkyl; and R.sup.2 is hydrogen, alkyl or phenyl; with (b) a copolymerizable monomer having the formula (II): ##STR2## wherein R.sup.3 is alkyl. This copolymer has a glass transition temperature of at least about 80.degree. C.
REFERENCES:
patent: 3243416 (1966-03-01), Caldwell et al.
patent: 3485775 (1969-12-01), Cenci et al.
patent: 3536788 (1970-11-01), Hurwitz et al.
patent: 3649282 (1972-03-01), Campbell
patent: 3652476 (1972-03-01), Fellers et al.
patent: 3705136 (1972-12-01), Cawley et al.
patent: 3716524 (1973-02-01), Cenci
patent: 3784532 (1974-01-01), Fellmann et al.
patent: 3916051 (1975-10-01), Wakeman
patent: 3986640 (1976-10-01), Redmond
patent: 3986640 (1976-10-01), Redmond
patent: 4054232 (1977-10-01), Cawley
patent: 4054233 (1977-10-01), Cawley
Research Disclosure #12713, Nov. 1974-Anonymous, Pods for Photographic Solutions.
Brown J. Travis
Eastman Kodak Company
Falasco Louis V.
Tucker J. Lanny
LandOfFree
Rupturable fluid container and elements containing same does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Rupturable fluid container and elements containing same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rupturable fluid container and elements containing same will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1853678