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. 30, 2001
Filed:
Jun. 29, 1998
Applicant:
Inventors:
Assignee:
Kao Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21B 1/08 ; D21C 5/02 ;
U.S. Cl.
CPC ...
D21B 1/08 ; D21C 5/02 ;
Abstract
In a deinking process at least comprising the step of stripping ink from wastepaper as the starting material and the step of removing the stripped ink from a flotation system, the contact angle of the aqueous solution portion of a slurry containing the stripped ink with the interfaces of ink particles in the flotation step is controlled to be at least 70°.
Irinatsu, Yuichi. (2001). Method for controlling deinking process using contact angle (U.S. Patent No. 6179957). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6179957
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile