Patent · US Active

Stabilized dental impression composition, kit of parts and use thereof

US9549881B2 · kind B2 · utility

0Cited by

31References

18Claims

0Family size

Assignee

3M INNOVATIVE PROPERTIES COMPANY · US

Inventors

Peter U. Osswald · Bohmte, DE
Henning Hoffmann · Windach, DE
Joachim W. Zech · Kaufering, DE

Key dates

Filing date	Feb 20, 2014
Grant date	Jan 24, 2017
Priority date	—
Expiry date	Feb 20, 2034

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61K6/90
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

The invention is related to a dental impression composition which is curable at a temperature below about 50 C, the composition comprising: (A) a curable organopolysiloxane polymer as component (A), (B) a crosslinker compound capable of cross-linking said organopolysiloxane polymer as component (B), (C) a catalyst as component (C) capable of catalyzing a crosslinking reaction of component (A) and component (B), (D) a hydrophilizing agent as component (D), (E) a filler as component (E), (F1) a stabilizer as component (F1) selected from compounds comprising a phosphite moiety and mixtures thereof, (F2) a stabilizer as component (F2) selected from antioxidants and mixtures thereof, the composition being present in the form of a base paste and a catalyst paste physically separated from another, the base paste comprising components (A), (B), (D), (E), (F1), (F2), the catalyst paste comprising components (A), (C), (E).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.