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:
Feb. 18, 2014
Filed:
Feb. 04, 2013
Imi Tami Institute for Research and Development Ltd., Haifa Bay, IL;
Aharon Weissman, M.P. Misgav, IL;
Yelena Gorelik, Kiryat Byalik, IL;
Eyal Yehihel Vultz, Kfar Saba, IL;
Dorit Perle, Haifa, IL;
Basam Masri, Haifa, IL;
Gideon Shikolsky, Kiryat Motzkin, IL;
Ezrah Hanuka, Haifa, IL;
Ron Frim, Haifa, IL;
Eyal Ginzberg, Zikhron-Yaakov, IL;
Imi Tami Institute For Research and Development Ltd, Haifa Bay, IL;
Abstract
A cement mix for preparation of a magnesium silico-phosphate cement (MSPC) with an altered hardening rate is provided. The cement mix comprises on the order of 1% of an [MF]salt or acid. Upon addition of water, the mix produces a final set cement that has similar physical properties to those of a cement prepared from a mix lacking the additive, but with a significantly altered setting time. In some embodiments of the invention, the additive is provided in the form of a coating for the MgO component of the mix. In preferred embodiments, HTiF, NaTiFand/or KTiFare used as retarders, while KAlFis used as an accelerant. Other embodiments use M'MFcompounds wherein M′ is an alkali metal, an alkaline earth metal, or H, and M is chosen from inter alia Ti (n=2), Zr (n=2), P (n=1), Al (n=3), and Sb (n=1).