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. 17, 2017
Filed:
Jul. 20, 2012
Eugene N. Step, Newton, MA (US);
Andriy Korchev, Billerica, MA (US);
Agathagelos Kyrlidis, Cambridge, MA (US);
Clovis D. Haynes, Carlisle, MA (US);
Gregory R. Schulz, Reading, MA (US);
John R. Szwec, Hudson, NH (US);
Eugene N. Step, Newton, MA (US);
Andriy Korchev, Billerica, MA (US);
Agathagelos Kyrlidis, Cambridge, MA (US);
Clovis D. Haynes, Carlisle, MA (US);
Gregory R. Schulz, Reading, MA (US);
John R. Szwec, Hudson, NH (US);
Cabot Corporation, Boston, MA (US);
Abstract
Disclosed herein are resistive composites comprising at least one resin; at least one carbon black having a surface hydrophobically modified with at least one organic group, the at least one organic group having a molecular weight of the composite of 4000 or less and comprising the formula —X(G)-, wherein X is directly attached to the at least one carbon black and is selected from arylene, heteroarylene, and alkylene, G is a substituent of X, and —X(G)- is nonionic; and wherein the resistive composite has a volume resistivity, R, at a relative volume fraction, X, of the at least one carbon black in the coating, where Ris at least 10ohm-cm; and log Rhas a substantially linear relationship with Xwhen Xis varied from 0.1 to 0.5. Also disclosed are coatings made from such composites, such as coatings for rollers/belts for office automation machines, and methods of making such coatings.