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:
Mar. 11, 2025
Filed:
Feb. 20, 2020
Applicant:
Inv Nylon Polymers Americas, Llc, Wilmington, DE (US);
Inventor:
Bryan D. Kaushiva, Yorkshire, GB;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 69/28 (2006.01); C08G 69/30 (2006.01); C08L 77/06 (2006.01);
U.S. Cl.
CPC ...
C08G 69/28 (2013.01); C08G 69/30 (2013.01); C08L 77/06 (2013.01); C08J 2377/06 (2013.01);
Abstract
The present disclosure relates to a method for the production of polyamides having the benefit of simpler process control, lower thermal degradation and greater compositional flexibility. More particularly, it relates to processes of converting salts of diamines and dicarboxylic acids to polyamides in the solid state without a melt phase, by fluidizing solid diacid in a fluidizing gas.