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. 20, 1981
Filed:
Feb. 27, 1979
Koichi Tanaka, Minami-ashigara, JP;
Kenji Kobayashi, Minami-ashigara, JP;
Shigeo Aonuma, Minami-ashigara, JP;
Fuji Xerox Co., Ltd., Tokyo, JP;
Abstract
An electrophotographic toner comprising a binder resin and a colorant dispersed therein wherein the binder resin comprises about 50 to 95% by weight of a low temperature melting, high fluidity resin having a number average molecular weight of about 1,000 to 4,000, a glass transition temperature of about 40.degree. to 60.degree. C. and a melt index at 110.degree. C. of about 50 to 200 g/10 min or a mixture thereof, and about 5 to 50% by weight of a high molecular weight polymer having a glass transition temperature of about 35.degree. to 60.degree. C. and a weight average molecular weight of more than about 500,000.