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. 15, 1980
Filed:
Mar. 03, 1978
Haruo Tsukamoto, Tokyo, JP;
Kazuo Koide, Tokyo, JP;
Yuzo Okazaki, Tokyo, JP;
Isao Yamada, Tokyo, JP;
Oji Paper Co., Ltd., Tokyo, JP;
Abstract
Disclosed is a process for simultaneously drying mechanical wood pulp and improving the mechanical strength and brightness of the wood pulp by mixing mechanical wood pulp with an aqueous solution of at least one sulfonating compound, the resultant mixture having a dry solid consistency of 20 to 50% of the wood pulp, based on the weight of said mixture and; bringing the mixture into contact with a heating gas having a temperature higher than 100.degree. C. to cause the dry solid consistency of the wood pulp in the mixture to be increased to a range of from 65 to 90% by weight.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile