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. 23, 1992
Filed:
Nov. 16, 1990
Applicant:
Inventors:
Robert J Catena, Orange, NJ (US);
Albert A Kveglis, Pine Brook, NJ (US);
Assignee:
Sun Chemical Corporation, Fort Lee, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
5254205 ; 528292 ; 528332 ; 528335 ; 562509 ;
Abstract
A carboxy acid-terminated polyamide is reacted with an alkylene glycol, a polyalkylene glycol, nitrogen base or an alkanol amine (followed by an alkanoic acid) to provide a block copolymer. These block copolymers are especially useful as pigment dispersants, i.e. for preparing solvent-based packaging inks (i.e. packaging gravure and flexographic inks).