Polyolefin films with a high resistance to sticking against weld

Details Polyolefin films with a high resistance to sticking against weld Polyolefin films with a high resistance to sticking against weld

1978-10-23

1980-11-04

Cannon, James C.

Stock material or miscellaneous articles

Composite

Of epoxy ether

426127, 4274123, 428523, 428910, B32B 2738

Patent

active

042320895

ABSTRACT:
Films comprising alpha-olefin polymers, such as normally solid polypropylene consisting essentially of recurring propylene units and having a substantial crystalline polypropylene content, and in particular isotactic polypropylene, are rendered easily thermoweldable and/or impervious to gases and vapors, and also given improved resistance to sticking against the welding bars of automatic and semi-automatic machines conventionally used for the manufacture of containers, envelops, bags, vessels and, in general, other manufactured articles useful in the packaging industry, by coating the films with a first layer comprising a polyalkyleneimine and a second layer comprising a mixture of an epoxy resin, an acrylic or methacrylic polymer or copolymer, and nitrocellulose.

REFERENCES:
patent: 3753769 (1973-08-01), Steiner
patent: 3923574 (1975-12-01), Vercauteren

Affiliated with

Also associated with

Rating

Polyolefin films with a high resistance to sticking against weld does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Polyolefin films with a high resistance to sticking against weld, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polyolefin films with a high resistance to sticking against weld will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1645894