Coated polyolefinic films having low adhesion to the welding bar

Details Coated polyolefinic films having low adhesion to the welding bar Coated polyolefinic films having low adhesion to the welding bar

1983-04-25

1985-08-20

Ives, Patricia C.

Stock material or miscellaneous articles

Composite

Of wax or waxy material

428516, 428520, 428522, 428 35, 428910, 206259, 426127, 229 68R, 427322, 427223, 427416, B32B 516, B32B 2708

Patent

active

045364532

ABSTRACT:
Films comprising alpha-olefin polymers, such as polypropylene consisting essentially of recurring propylene units and having a substantial crystalline polypropylene content, and in particular isotactic polypropylene, are rendered poorly adhesive to the welding bars of automatic and semi-automatic machines conventionally used for the manufacture of containers, envelopes, bags, vessels and, in general, other manufactured articles useful in the packaging industry, by coating the films by a mixture of a copolymer of a vinyl ester with an unsaturated acid, a terpolymer of an alkyl acrylate, an alkyl-methacrylate and an unsaturated acid and a cross-linking amine.

REFERENCES:
patent: 3692568 (1972-09-01), Clark
patent: 3753769 (1973-08-01), Steiner
patent: 4058645 (1977-11-01), Steiner
patent: 4058649 (1977-11-01), Steiner
patent: 4348457 (1982-09-01), Rosenthal et al.

Affiliated with

Also associated with

Rating

Coated polyolefinic films having low adhesion to the welding bar does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Coated polyolefinic films having low adhesion to the welding bar, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Coated polyolefinic films having low adhesion to the welding bar will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-560987