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:
Oct. 06, 2020
Filed:
Oct. 11, 2016
3m Innovative Properties Company, St. Paul, MN (US);
Michael Jahns, Gilching, DE;
Markus Mikulla, Andrechs-Frieding, DE;
Robert F. Peez, Landsberg, DE;
Adrian S. Eckert, Herrsching, DE;
Rainer A. Guggenberger, Herrsching, DE;
Simone Raynoschek, Neuss, DE;
Afshin Falsafi, Woodbury, MN (US);
Bradley D. Craig, Lake Elmo, MN (US);
Jimmie R. Baran, Jr., Prescott, WI (US);
Joel D. Oxman, Minneapolis, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
The invention relates to a kit of parts for preparing a glass ionomer composition for dental use, the kit of parts comprising a Powder Part P and a Liquid Part L, Powder Part P comprising: acid-reactive inorganic filler, Liquid Part L comprising: water, complexing agent, polyacid, either the Powder Part P or the Liquid Part L or the Powder Part P and the Liquid Part L comprising non-aggregated nano-sized particles based on silica or alumina, the composition obtained by combining the components of Powder Part P and Liquid Part L before hardening comprising the components in the following amounts: non-aggregated nano-sized particles: from 0.1 to 15 wt.-%, acid-reactive filler in an amount from 50 to 75 wt.-%, polyacid: 7 to 20 wt.-%, complexing agent: 0.5 to 3 wt.-%, water: 5 to 18 wt.-%, wt.-% with respect to the weight of the whole composition.