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. 08, 2013
Filed:
Dec. 03, 2009
Charles Edward Akers, Jr., Lexington, KY (US);
Michael James Bensing, Lexington, KY (US);
John Joseph Kraseski, Lexington, KY (US);
Claudia Alexandra Marin, Lexington, KY (US);
Jing X. Sun, Lexington, KY (US);
Charles Edward Akers, Jr., Lexington, KY (US);
Michael James Bensing, Lexington, KY (US);
John Joseph Kraseski, Lexington, KY (US);
Claudia Alexandra Marin, Lexington, KY (US);
Jing X. Sun, Lexington, KY (US);
Lexmark International, Inc., Lexington, KY (US);
Abstract
A hyper-branched polyester and a method of making the same having a tri-functional monomer A3, a di-functional monomer B2 and a mono-functional monomer C1 having a monomer ratio of A3:B2:C1 from about 1:0.2:2 to about 1:1.4:0.2 for use in a chemically processed electrophotographic toner providing a lower fusing temperature. In one form, the hyper-branched polyester includes a tri-hydroxy monomer, a di-acid and its derivatives, and a mono-acid and its derivatives. In other forms, a substituted anhydride and a long chain hydrocarbon carboxylic acid and its derivatives may also be included in the di-functional monomer.