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:
Aug. 10, 2010
Filed:
Jul. 30, 2008
Applicants:
Keith Whiston, Darlington, GB;
Stewart Forsyth, Belfast, IE;
Kenneth R. Seddon, Donaghadee, IE;
Inventors:
Assignee:
Invista North America S.A.R.L., Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J 11/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
An improved process for the hydrolysis of nylon polymer is herein disclosed using ionic liquids and optionally one equivalent of sulfuric acid per amide residue of the polymer. The process provides for a simplified means for separation of the hydrolyzed polyamide constituent monomers.