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:
Jul. 19, 2016
Filed:
Jul. 02, 2008
Anton Peter DE Weijer, Nijmegen, NL;
Hendrik Van DE Hee, Ede, NL;
Martinus Wilhelmus Maria Gemma Peters, Nijmegen, NL;
Sanjay Rastogi, Eindhoven, NL;
Bing Wang, Geleen, NL;
Anton Peter De Weijer, Nijmegen, NL;
Hendrik Van De Hee, Ede, NL;
Martinus Wilhelmus Maria Gemma Peters, Nijmegen, NL;
Sanjay Rastogi, Eindhoven, NL;
Bing Wang, Geleen, NL;
THIJIN ARAMID B.V., Arnhem, NL;
Abstract
The present invention pertains to a UHMWPE film having a tensile strength of at least 2.0 GPa, a tensile energy to break of at least 30 J/g, an Mw of at least 500 000 gram/mole, and a Mw/Mn ratio of at most 6. The film may be manufactured via a process which comprises subjecting a starting UHMWPE with a weight average molecular weight of at least 500 000 gram/mole, an elastic shear modulus determined directly after melting at 160° C. of at most 0.9 MPa, and a Mw/Mn ratio of at most 6 to a compacting step and a stretching step under such conditions that at no point during the processing of the polymer its temperature is raised to a value above its melting point. The film may be used as starting material in any applications where high tensile strength and high energy to break are important. Suitable applications include ballistic applications, ropes, cables, nets, fabrics, and protective applications.