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:
Mar. 15, 2016
Filed:
Apr. 07, 2015
Tongji University, Shanghai, CN;
Tongji University, Shanghai, CN;
Abstract
A star-shaped hyperbranched polymer with a triethanolamine core, a carboxylate lateral group and a dithiocarboxylate end group has a formula of N[CHCHOCOCHCH(COOM)N(CSSM)CHCHN(CSSM)], wherein M is Na, NHor K. The star-shaped hyperbranched polymer has an effectively stabilization effect on heavy metals in MSWI fly ash. A method thereof for stabilizing is simple, low in dosage, cheap and without secondary pollution. Therefore, heavy metals leaching concentration in fly ash stabilized production is lower than a limit of Chinese national standard. Furthermore, acid and alkali resistance thereof is sufficient, which decreases a long-term pollution risk in natural environment.