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:
Mar. 05, 2002
Filed:
May. 23, 2000
Other;
Abstract
The polyolefin stretch film comprises a film produced from a resin composition principally composed of a polyolefin resin consisting either entirely of ethylene (meth)acrylic acid copolymer or ethylene (meth)acrylic acid (meth)acrylic ester terpolymer, or a mixed resin of both, and being, insofar as necessary, compounded with an anti-fogging agent and a tackifier, such film having a stress at 100% elongation in the longitudinal direction of 12-30 MPa and a stress at 100% elongation in the transverse direction of 5-11 MPa. This film is suitably used as a stretch wrap film material for packaging food and various items, inasmuch as it is free of pollution and sanitary/health hazard problems, and imparts a large elongation, excellent cut property of traverse direction, adherence/conformance property (cling property), elastic recovery after distention by fingertips, etc., adequate stress at 100% elongation and, moreover, a good balance between the stresses at elongation in the longitudinal direction and in the transverse direction, respectively, which properties all in all enable the film to accomplish wrapping virtually free of surface wrinkle formation and film breakage in a continuous stretch wrapping operation, thus rendering the film fully compatible with the automatic wrapping machine. Furthermore, since it can be formed at a high speed by the extrusion film forming technique employing a straight manifold die, the film has a merit of high productivity.