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:
Feb. 03, 2015
Filed:
Jul. 09, 2008
Jinsong Liu, Franklin, MA (US);
Hairuo Tu, Boxborough, MA (US);
Dmitry Fomitchev, Lexington, MA (US);
Jinsong Liu, Franklin, MA (US);
Hairuo Tu, Boxborough, MA (US);
Dmitry Fomitchev, Lexington, MA (US);
Cabot Corporation, Boston, MA (US);
Abstract
Treated metal oxide particles include metal oxide particles treated with at least a charge modifying agent. The charge modifying agent is represented by the following formula:An-Z—Y—Ar(EW)wherein Ar represents an aromatic group, EW represents an electron withdrawing group, Y represents a spacer group, Z represents an alkylene group, An represents an anchor group, a is an integer from 1 to 5, b is 0 or 1, and c is 0 or 1. The treated metal oxide particles may also be treated with a second charge modifying agent or with a hydrophobicity-imparting agent. A toner composition including toner particles and treated metal oxide particles is also disclosed.