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. 10, 2005
Filed:
May. 16, 2003
Toshiya Higashino, Aichi-ken, JP;
Shinji Shimosato, Aichi-ken, JP;
Toshiya Higashino, Aichi-ken, JP;
Shinji Shimosato, Aichi-ken, JP;
Tosoh Corporation, Shinnanyo, JP;
Abstract
The present invention provides a branched polyvinyl imidazoline acid salt which, when used in waste water treatment, especially sewage treatment, forms flocs and decreases the water content of a dehydrated cake, a polymeric flocculent comprising the branched polyvinyl imidazoline acid salt, and a process for preparing the branched polyvinyl imidazoline acid salt. The branched polyvinyl imidazoline acid salt has a Huggins' constant k' of 0.2 to 1.2 and an intrinsic viscosity [η] of 2 to 20 based on measurements at 30° C. in a 0.1 mol/l aqueous solution of sodium chloride.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile