Flexible packaging structure and process for making it

Details Flexible packaging structure and process for making it Flexible packaging structure and process for making it

1980-12-22

1983-09-06

Culver, Horace M.

Package making

Methods

Sterilizing complete package

53452, 53479, 53140, B65B 5506

Patent

active

044021720

ABSTRACT:
This invention is a novel laminate, and a process for making a laminate packaging material suitable for use with food in a retort environment. In the first step, polypropylene is coextruded with an anhydride modified polypropylene. In the second step the modified polypropylene is adhered to unprimed metal foil in a hot combining nip. In the third and final step, the surface of the foil opposite the surface affixed to the modified polypropylene is adhesively laminated to a biaxially oriented polymer.

REFERENCES:
patent: 3414551 (1968-12-01), Reid et al.
patent: 3499819 (1970-03-01), Lewis
patent: 3508947 (1970-04-01), Hughes
patent: 3832827 (1974-09-01), Lemelson
patent: 3892058 (1975-07-01), Komatsu et al.
patent: 3928687 (1975-12-01), Wada et al.
patent: 4190477 (1980-02-01), Ossian et al.
patent: 4308084 (1981-12-01), Ohtusuki et al.
patent: 4310578 (1982-01-01), Katsura et al.

Affiliated with

Also associated with

Rating

Flexible packaging structure and process for making it does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Flexible packaging structure and process for making it, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flexible packaging structure and process for making it will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1586307