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:
Aug. 20, 1991
Filed:
Sep. 07, 1989
Applicant:
Inventor:
Byron G Hays, Verona, NJ (US);
Assignee:
BASF Corporation, , US;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
524 88 ; 524 90 ; 524190 ; 524315 ; 524356 ; 524379 ; 524590 ; 528 49 ; 528 74 ; 528 85 ; 560 19 ; 560 26 ; 560158 ; 564 48 ; 564 55 ;
Abstract
An oligomeric aromatic pigment dispersant is the reaction product of a diisocyanate and a diol or diamine. The oligomeric dispersant is comprised of at least 25 weight percent of a compound of the formula: ##STR1## wherein n is an integer of from 3 to 15, AR is a residual aromatic connecting group, DI is a residual organic connecting group, CAP is a capping moiety, and X is a residual connecting group selected from the group consisting of: ##STR2## The oligomeric aromatic dispersant has at least 3 aromatic 'heads' and 2 aliphatic or rosin 'tails'.