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:
Jun. 30, 2020
Filed:
Jul. 09, 2014
Applicant:
Total Research & Technology Feluy, Seneffe, BE;
Inventors:
Assignee:
TOTAL RESEARCH & TECHNOLOGY FELUY, Seneffe, BE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 210/06 (2006.01); C08F 293/00 (2006.01); B32B 27/08 (2006.01); B32B 27/32 (2006.01); C08F 4/6592 (2006.01); C08F 4/659 (2006.01);
U.S. Cl.
CPC ...
C08F 293/00 (2013.01); B32B 27/08 (2013.01); B32B 27/32 (2013.01); C08F 210/06 (2013.01); B32B 2307/518 (2013.01); B32B 2581/00 (2013.01); C08F 4/65912 (2013.01); C08F 4/65916 (2013.01); C08F 4/65927 (2013.01);
Abstract
A propylene-comonomer block copolymer may have a molecular weight distribution Mw/Mn of at least 1.7, a percentage of enthalpy measured between Ti and [Tm−18° C.] of at least 20% of the total enthalpy, and a ratio E1/Co of at least 0.80. The propylene-comonomer block copolymer may be produced by polymerizing propylene in the presence of at least one comonomer and a bridged metallocene catalyst. The bridged metallocene catalyst may include bridged fluorenyl, bridged indenyl metallocene, or any combination thereof. The propylene-comonomer block copolymer may be used as a heat seal layer for biaxially oriented multi-layer films.