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. 08, 2014
Filed:
Jun. 30, 2010
Keith Whiston, Darlington, GB;
Charles Richard Langrick, Middlesbrough, GB;
Kenneth Richard Seddon, Donaghadee, IE;
Alberto V. Puga, Belfast, IE;
Keith Whiston, Darlington, GB;
Charles Richard Langrick, Middlesbrough, GB;
Kenneth Richard Seddon, Donaghadee, IE;
Alberto V. Puga, Belfast, IE;
Invista North America S.är.l., Wilmington, DE (US);
Abstract
A process for making a polyamide polymer, said process comprising heating, in one or more ionic liquid(s), one or more polyamide precursor(s) selected from: (i) one or more free dicarboxylic acid(s) or ester(s) thereof, with one or more diamine(s); or (ii) one or more salt(s) of a dicarboxylic acid with a diamine; or (iii) one or more lactam(s); or (iv) mixtures of any of the foregoing precursors (i) to (iii).