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:
Jun. 09, 1987
Filed:
Jan. 21, 1986
Applicant:
Inventors:
Robert G Nelb, II, North Haven, CT (US);
Kemal Onder, North Haven, CT (US);
Karl W Rausch, Hamden, CT (US);
John A Vanderlip, Hamden, CT (US);
Assignee:
The Dow Chemical Company, Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08G / ; C08G / ;
U.S. Cl.
CPC ...
525440 ; 528 45 ; 528 48 ; 528 51 ; 528 84 ; 528492 ;
Abstract
A process is described for increasing the molecular weights of thermoplastic polyamides and polyesteramides by fluxing and homogenizing the subject polymers which have been prepared by the reaction of an organic diisocyanate and a dicarboxylic acid with an effective amount of an organic diisocyanate reagent at a temperature of at least about 150.degree. C.