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:
Oct. 17, 2000
Filed:
Jul. 10, 1997
Applicant:
Inventor:
Anthony J Allen, Wilmington, DE (US);
Assignee:
Hercules Incorporated, Wilmington, DE (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ; C08G / ; B31F / ; D21H / ;
U.S. Cl.
CPC ...
528310 ; 528170 ; 528172 ; 528173 ; 528220 ; 528229 ; 528322 ; 528327 ; 528332 ; 528335 ; 528336 ; 528345 ; 525 66 ; 162111 ;
Abstract
Water soluble polyalkanolamides and a process to prepare same by reacting polycarboxylic acid or its anhydride, ester or halide derivative with at least one alkanolamine and optionally with a polyamine and removing the condensation byproduct water, alcohol or hydrogen halide.