The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 16, 1980
Filed:
Nov. 16, 1978
Barry A Cooper, Wayzata, MN (US);
Bemis Company, Inc., Minneapolis, MN (US);
Abstract
Improved stretch pallet wrap films are prepared from blend compositions comprising from approximately 79% to 98% by weight of a high molecular weight ethylene-vinyl acetate copolymer, from approximately 1% to 18% by weight of a polypropylene copolymer and from approximately 0.3% to 5% by weight of a tackifier agent which may be a glycerol mono fatty acid, a sorbitan mono fatty acid, castor oil or expoxidized soya, with the ethylene-vinyl acetate copolymer having a vinyl acetate comonomer content of between approximately 8% and 20% and the polypropylene copolymer having a refractive index substantially similar to that of the ethylene-vinyl acetate copolymer. Such films exhibit improved properties for the stretch wrapping of palletized loads of boxes, bags and the like.