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. 10, 2020
Filed:
Apr. 27, 2012
Applicants:
Nicolas C. Mazzola, Jundiai, BR;
Jorge C. Gomes, Sao Paulo, BR;
Marcelo D. Cantu, Campinas, BR;
Inventors:
Assignee:
DOW BRASIL INDÚSTRIA E COMÉRCIO DE PRODUTOS QUÍMICOS LTDA, Sao Paulo, BR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 7/02 (2019.01); B32B 27/32 (2006.01); B32B 27/08 (2006.01);
U.S. Cl.
CPC ...
B32B 7/02 (2013.01); B32B 27/08 (2013.01); B32B 27/32 (2013.01); B32B 27/327 (2013.01); B32B 2250/242 (2013.01); B32B 2307/308 (2013.01); B32B 2307/406 (2013.01); B32B 2307/412 (2013.01); B32B 2439/00 (2013.01); Y10T 428/24992 (2015.01);
Abstract
The present invention relates to polyethylene films having a combination of high stiffness and good optics. The cast films have a first layer comprising a linear polyethylene having a density greater than 0.94 g/cmand a melt index less than or equal to 1.3 g/10 min together with a second layer comprising a linear polyethylene having a density greater than 0.94 g/cmand a melt index greater than or equal to 2.0 g/10 min. The second layer is an external layer of the film.