Laminated material and formed article for packaging photographic

Details Laminated material and formed article for packaging photographic Laminated material and formed article for packaging photographic

1984-07-06

1990-08-21

Schwartz, Pamela R.

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

4283666, 428156, 428172, 428195, 428212, 428412, 428457, 428461, 428462, 428463, 4284744, 4284763, 4284769, 428480, 428483, 428500, 428516, 428517, 428518, 428520, 428521, 428522, B27N 532

Patent

active

049505122

ABSTRACT:
Laminated material sheets for packaging photographic materials, which comprise (a) a middle layer of a thermoplastic resin layer which contains any harmful substances adversely affecting photographic materials, (b) and outer layer having a higher gas-permeability and is photographically inactive comprising a thermoplastic resin and/or a porous flexible sheet layer and (c) an inner layer which is less gas-permeable than said outer layer (b) and is photographically inactive comprising a thermoplastic resin layer, a flexible sheet layer or a laminated layer thereof. Formed articles like containers for like use comprised of said laminated materials. Any harmful substances contained in the thermoplastic resin of the middle layer (a) may diffuse out through the outer layer (b), or they do not almost migrate into the packaged photographic materials through the inner layer (c).

REFERENCES:
patent: 4105118 (1978-08-01), Williams, Jr. et al.
patent: 4136203 (1979-01-01), Murphy et al.
patent: 4147291 (1979-04-01), Akao et al.
patent: 4258848 (1981-03-01), Akao et al.
patent: 4331725 (1982-05-01), Akao
patent: 4337285 (1982-06-01), Akao et al.
patent: 4356224 (1982-10-01), Akao et al.
patent: 4359499 (1082-11-01), Akao et al.
patent: 4386124 (1983-05-01), Akao
patent: 4411943 (1983-10-01), Akao
patent: 4411945 (1983-10-01), Akao et al.
patent: 4436809 (1984-03-01), Akao et al.
patent: 4452846 (1984-06-01), Akao
patent: 4469741 (1984-09-01), Akao
patent: 4513050 (1985-04-01), Akao
patent: 4565733 (1986-01-01), Akao
patent: 4565743 (1986-01-01), Akao
patent: 4576865 (1986-03-01), Akao
patent: 4579781 (1986-04-01), Akao
patent: 4584234 (1986-04-01), Hirose et al.
patent: 4587175 (1986-05-01), Akao
patent: 4629640 (1986-12-01), Akao
patent: 4639386 (1987-01-01), Akao
patent: 4653640 (1987-03-01), Akao
patent: 4661395 (1987-04-01), Akao
patent: 4661401 (1987-04-01), Akao
patent: 4663218 (1987-05-01), Akao
patent: 4687692 (1987-08-01), Akao
patent: 4708896 (1987-11-01), Akao
patent: 4730778 (1988-03-01), Akao et al.
patent: 4778712 (1988-10-01), Akao

Affiliated with

Also associated with

Rating

Laminated material and formed article for packaging photographic does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Laminated material and formed article for packaging photographic, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Laminated material and formed article for packaging photographic will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1676480