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:
Dec. 08, 2020
Filed:
Nov. 11, 2016
Applicant:
Invista North America S.a R.l., Wilmington, DE (US);
Inventors:
Charles Richard Langrick, Middlesbrough, GB;
Garry S. Hunt, Yearby, GB;
Assignee:
INVISTA North America S.a.r.l., Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 69/40 (2006.01); C08G 69/28 (2006.01); C08K 5/092 (2006.01); C08G 69/46 (2006.01); C08G 69/04 (2006.01); C08G 69/02 (2006.01); C08G 69/26 (2006.01); C08G 69/48 (2006.01); B29B 9/06 (2006.01); B29K 77/00 (2006.01);
U.S. Cl.
CPC ...
C08G 69/40 (2013.01); C08K 5/092 (2013.01); B29B 9/065 (2013.01); B29K 2077/00 (2013.01); C08G 69/02 (2013.01); C08G 69/04 (2013.01); C08G 69/26 (2013.01); C08G 69/28 (2013.01); C08G 69/46 (2013.01); C08G 69/48 (2013.01);
Abstract
The present disclosure relates to a preparation of polymer with improved color and properties. More particularly, the disclosure relates to the preparation of polyamide by introducing a polyetheramine additive during the polymer extrusion step. The extruded polymer is superior in appearance and spinnable in subsequent processing into yarn.