Oxygen barrier coated photographic coupler dispersion particles

Details Oxygen barrier coated photographic coupler dispersion particles Oxygen barrier coated photographic coupler dispersion particles

1993-07-23

1994-11-22

Le, Hoa Van

Radiation imagery chemistry: process, composition, or product th

Microcapsule, process, composition, or product

430111, 430114, 430531, 430536, 430543, 430627, 430909, G03C 1733

Patent

active

053668421

ABSTRACT:
The invention creates a selective oxygen barrier around individual coupler or other photographically active particles by surrounding each particle with a layer of water applicable oxygen barrier polymer such as polyvinyl alcohol (PVA), which will also act as a steric barrier to coalescence of the particles. Photographic products formed with such materials are more dye stable.

REFERENCES:
patent: 3277041 (1966-10-01), Sieg et al.
patent: 3936303 (1976-02-01), Shiba et al.
patent: 4072527 (1978-02-01), Fan
patent: 4080209 (1978-03-01), Mukunoki et al.
patent: 4199363 (1980-04-01), Chen
patent: 4275145 (1981-06-01), Mikami
patent: 4283486 (1981-08-01), Aono et al.
patent: 4284709 (1981-08-01), Tomka
patent: 4291113 (1981-09-01), Minamizono et al.
patent: 4399245 (1983-08-01), Kieber et al.
patent: 4409323 (1983-10-01), Sato et al.
patent: 4542093 (1985-09-01), Suzuki et al.
patent: 4645736 (1987-02-01), Anthonsen et al.
patent: 4729945 (1988-03-01), Anthonsen et al.
patent: 4770087 (1988-09-01), Takahashi et al.
patent: 4814260 (1989-03-01), Koboshi et al.
patent: 4933270 (1990-06-01), Bagchi
patent: 4940654 (1990-07-01), Diehl et al.
patent: 4990431 (1991-02-01), Bagchi et al.
patent: 4999273 (1991-03-01), Hasegawa
patent: 5037716 (1991-08-01), Moffat
patent: 5252423 (1993-10-01), Kakimi et al.

Affiliated with

Also associated with

Rating

Oxygen barrier coated photographic coupler dispersion particles does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Oxygen barrier coated photographic coupler dispersion particles , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Oxygen barrier coated photographic coupler dispersion particles will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1990650