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:
Mar. 26, 1991
Filed:
Sep. 05, 1989
Hiroshi Utsumi, Chiba, JP;
Kinji Shinzo, Chiba, JP;
Kazuya Kuriyama, Chiba, JP;
Ryouzo Sugawara, Chiba, JP;
Masanobu Fukuda, Osaka, JP;
Shunichi Hiraishi, Fort Lee, NJ (US);
Dainippon Ink and Chemicals, Inc., Tokyo, JP;
Abstract
A toner for developing electrostatic images and a process for producing the same is disclosed. The process comprises after applying ultrasonic waves to raw materials-mixture comprising addition polymerizable monomer(s), coloring agent(s) and water as indispensable components in the course of charging the raw materials-mixture into a reaction vessel or to a raw materials-mixture in a reaction vessel, at an application amount of from 0.05 to 50 W/l/hr. per unit treating volume and time using an ultrasonic homogenizer having frequencies of from 10 kHz to 50 kHz, subjecting the raw materials-mixture to suspension polymerization.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile