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. 19, 1991
Filed:
Jun. 06, 1990
Yoshikuni Mori, Settsu, JP;
Mitsuo Kushino, Minoo, JP;
Hayato Ideda, Settsu, JP;
Nobuaki Urashima, Takatusuki, JP;
Masuji Izubayashi, Nishinomiya, JP;
Shigeru Tanimori, Hirakata, JP;
Yoshihiro Arita, Takatsuki, JP;
Kiyoshi Kawamura, Mishima, JP;
Kenji Minami, Suita, JP;
Yoshinori Sano, Kobe, JP;
Nippon Shokubai Kagaku Kogyo Co., Ltd., Osaka, JP;
Abstract
A carbon black-graft polymer, produced by causing a polymer possessing within the molecular unit thereof at least one reactive group selected from the class consisting of aziridine group, oxazoline group. N-hydroxyalkylamide group, epoxy group, and thioepoxy group to react with carbon black. The polymer can be used as a toner for electrostatically charged image, resin composition, coating composition, ink for thermographic transfer, coating agent for magnetic recording medium, rubber composition, and carbon black dispersion and the like.