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:
Sep. 01, 1992
Filed:
Aug. 23, 1990
Yoshinari Koyama, Ichihara, JP;
Daigo Shirota, Ichihara, JP;
Idemitsu Petrochemical Company Limited, Tokyo, JP;
Abstract
A process for washing a powdery and/or granular resin involves bringing the powdery and/or granular resin into contact with a washing liquid in a counterflow fashion in a tubular body with a plurality of static mixing elements disposed continuously in series, thereby removing impurities adhering to the powdery and/or granular resin and producing the powdery and/or granular resin with a less content of impurities. A washing device for use with the washing process contains a tubular body in which the static mixing elements are disposed continuously in series, and this construction is simpler than conventional ones and does not require a stirring power and mechanism to remove the impurities from the powdery and/or granular resin.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile