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:
Apr. 08, 2008
Filed:
Oct. 22, 2002
Tony Malfait, Rollegem-Kapelle, BE;
Patrick Rosseau, Grimbergen, BE;
Erik Bogels, Lanaken, BE;
Luc Veys, Ghent, BE;
Tony Malfait, Rollegem-Kapelle, BE;
Patrick Rosseau, Grimbergen, BE;
Erik Bogels, Lanaken, BE;
Luc Veys, Ghent, BE;
Amcor Flexibles Transpac, , BE;
Abstract
The present invention is related to a heat sealable coextruded multilayer packaging film peelable on a variety of substrates including polyethylene, polypropylene, polyester, polyvinyl chloride, polyamide, polyacrylonitirle and paper, comprising at least one peelable layer from a pre-compounded precursor formulation containing: −50 to 80% by weight of an ethylene homo and/or copolymer, −15 to 25% by weight of a styrene homo or/and copolymer, −5 to 20% by weight of a thermoplastic elastomeric styrene-butadiene-styrene block copolymer, characterised in that the peel force in said peelable seal film produced by said pre-compounded precursor is modified by the presence in said precursor in the final extrusion step of 5 to 25, and preferably 10 to 20% by weight of homogeneously branched LLDPE and/or polybutene-1.