Kit of parts for producing a glass ionomer cement, process of production and use thereof

US10792228B2 · kind B2 · utility

Assignee

• 3M INNOVATIVE PROPERTIES COMPANY · US

Inventors

• Michael Jahns · Gilching, DE
• Markus Mikulla · Cham, DE
• Robert F. Peez · Landsberg, DE
• Adrian S. Eckert · Herrsching am Ammersee, DE
• Rainer Guggenberger · Hanerau-Hademarschen, DE
• Simone Raynoschek · Neuss, DE
• Afshin Falsafi · Woodbury, US
• Bradley D. Craig · Lake Elmo, US
• Jimmie R. Baran, Jr. · Prescott, US
• Joel D. Oxman · Minneapolis, US

Key dates

• Filing date: Oct 11, 2016
• Grant date: Oct 6, 2020
• Expiry date: Jan 16, 2037

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61K6/77
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

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.