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. 31, 2012
Filed:
Jan. 28, 2011
Shailesh Ratilal Doshi, Kingston, CA;
Anna Kutty Mathew, Kingston, CA;
Marvin M Martens, Bettendorf, IA (US);
Shailesh Ratilal Doshi, Kingston, CA;
Anna Kutty Mathew, Kingston, CA;
Marvin M Martens, Bettendorf, IA (US);
E I du Pont de Nemours and Company, Wilmington, DE (US);
Abstract
Disclosed is a polyamide composition including at least one semi-aromatic copolyamide, said semi-aromatic copolyamide consisting essentially of about 25 to about 55 mole percent repeat units of the formula—C(O)(CH)C(O)NHCHArCHNH—  (I)and about 45 to about 75 mole percent repeat units of the formula—C(O)(CH)C(O)NH(CH)NH—  (II)wherein m is 8, 10, and/or 12, n is 6, 10 and/or 12 and Ar is a meta-substituted benzene ring; and said polyamide has a melting point equal to or less than 225° C.; and 0.1 to 15 weight percent of one or more polyhydric alcohols having more than two hydroxyl groups and having a number average molecular weight (M) of less than 2000. Also disclosed are molded or extruded articles including the polyamide composition.