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:
Nov. 13, 2012
Filed:
Feb. 24, 2010
John C. Chen, Malvern, PA (US);
Barbara Ramfel, Barc, FR;
Bruce Clay, Boyertown, PA (US);
William Todd Rogers, Collegeville, PA (US);
John C. Chen, Malvern, PA (US);
Barbara Ramfel, Barc, FR;
Bruce Clay, Boyertown, PA (US);
William Todd Rogers, Collegeville, PA (US);
Arkema Inc., King of Prussia, PA (US);
Abstract
The invention relates to an article formed by a rotational molding process, having at least one layer formed from a high molecular weight polyamide. The high molecular weight polyamide is one having a molecular weight in the range of 20,000 to 35,000 and also having an inherent viscosity of 1.05-1.60 dL/g. Rotomolded articles having a high molecular weight polyamide layer have better low-temperature impact performance compared to articles formed from lower molecular weight polyamides.