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:
Jan. 01, 1991
Filed:
Aug. 23, 1989
Applicant:
Inventors:
Assignee:
Nippon Gohsei Kagaku Kogyo Kabushiki, Osaka, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G / ; C08G / ;
U.S. Cl.
CPC ...
527604 ; 530218 ; 524270 ;
Abstract
This binder for toner preparation comprises as the main constituent thereof a polyester (X) composed of a polybasic acid component and a polyhydric alcohol component with a rosin-modified polyhydric alcohol (ab) introduced as part of the polyhydric alcohol component. The rosin-modified polyhydric alcohol is prepared in advance by reacting a polyhydric alcohol (a) having three or more hydroxyl groups with a rosin type compound (b).