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:
Oct. 27, 2020
Filed:
May. 06, 2014
Applicant:
Basell Poliolefine Italia S.r.l., Milan, IT;
Inventors:
Michele Grazzi, Ferrara, IT;
Roberta Marchini, Ferrara, IT;
Giampaolo Pellegatti, Ferrara, IT;
Stefano Spataro, Ferrara, IT;
Assignee:
Basell Poliolefine Italia S.r.l., Milan, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 7/12 (2006.01); B32B 27/08 (2006.01); B32B 27/32 (2006.01);
U.S. Cl.
CPC ...
B32B 7/12 (2013.01); B32B 27/08 (2013.01); B32B 27/32 (2013.01); B32B 2250/24 (2013.01); B32B 2250/242 (2013.01); B32B 2307/308 (2013.01); B32B 2307/31 (2013.01); B32B 2307/518 (2013.01); B32B 2307/704 (2013.01);
Abstract
Multilayer film (BOPP) structure containing at least: A) a skin (outer) layer substantially consisting of a crystalline low seal Initiation temperature propylene copolymer; B) a tie layer substantially consisting of a butene-1 copolymer having flexural modulus (MEF) of 75 MPa or less; C) a core layer substantially consisting of one or more polypropylene homopolymers designed for BOPP.