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:
May. 25, 1982
Filed:
Mar. 10, 1981
Applicant:
Inventors:
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DE;
Primary Examiner:
Int. Cl.
CPC ...
C02F / ;
U.S. Cl.
CPC ...
210620 ; 162-4 ; 162189 ;
Abstract
A method of processing regenerated liquors of polyacrylate, polyvinyl alcohol and carboxymethylcellulose (CMC) sizes for reuse, wherein the impurities are substantially removed, without noticeably changing the properties of the size, by constantly aerating the liquor and separating off the precipitate thereby formed.
Schenk, Wolfgang. (1982). Purification of regenerated sizing liquors (U.S. Patent No. 4331539). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4331539
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile