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:
Dec. 02, 2008
Filed:
Aug. 05, 2005
Joel Citron, Wilmington, DE (US);
Joel Citron, Wilmington, DE (US);
E.I. DuPont de Nemours and Company, Wilmington, DE (US);
Abstract
Polyolefins, preferably polyethylene, having a density of about 0.86 to about 0.93 g/mL, having three or more or branches of the formula (CHCH)H wherein m is an integer of one or more, provided that said branched polyolefin has one both of the following properties: said branched polyolefin contains less than 2 methyl groups per 1000 methyl-ene atoms and at least 30 total branches per 1000 methylene groups; said branched polyolefin contains less than 0.3 branches of the formula —(CH)H per 1000 methylene groups; and in said branched polyolefin the level hexyl+ branches is at least 80% of the level of ethyl branches, and said polyolefin contains less than 2 methyl branches per 1000 methylene groups or less than 0.3 branches of the formula —(CH)CHper 1000 me-thylene groups or both, thereby allowing good seals to be formed rapidly. This is advantageous when heat sealing these polyolefins, for example in the form of single or multilayer films.