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:
Sep. 11, 2012
Filed:
Dec. 20, 2006
Lawrence H. Judovits, Collegeville, PA (US);
Nicholas J. Rodak, Princeton, NJ (US);
Saeid Zerafati, Villanova, PA (US);
Ravi R. Gupta, Pottstown, PA (US);
Lawrence H. Judovits, Collegeville, PA (US);
Nicholas J. Rodak, Princeton, NJ (US);
Saeid Zerafati, Villanova, PA (US);
Ravi R. Gupta, Pottstown, PA (US);
Arkema Inc., King of Prussia, PA (US);
Abstract
The invention relates to compositions of polyvinylidene fluoride (PVDF) and its copolymers that have been modified with an onium salt. The PVDF compositions exhibit an increased melting point, a reduced heat distortion and piezo properties. The improved properties can be further enhanced through annealing, and/or the addition of nanoclays. Additionally, the combination of PVDF, nanoclays and annealing can also produce a PVDF with an increased melting point and piezoelectric properties.