Patent · US Active

Silicon moulding material comprising a two-stage hardening mechanism

US8278367B2 · kind B2 · utility

3Cited by

2References

19Claims

0Family size

Assignee

Ernst Muehlbauer GmbH & Co. KG · DE

Inventors

Henrik Boettcher · Tostedt, DE
Stephan Neffgen · Hamburg, DE

Key dates

Filing date	Jan 16, 2008
Grant date	Oct 2, 2012
Priority date	—
Expiry date	May 27, 2028

Classification

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

Abstract

A subject-matter of the invention is an impression material with at least one compound with at least two alkenyl groups as component (a), at least one compound with at least one chelating group as component (b), at least one organohydropolysiloxane as component (c), at least one hydrosilylation catalyst as component (d) and at least one compound with a chelatable metal atom as component (e), the chelating group of the component (b) exhibiting no reactive groups which can react with the component (c) and/or the component (d).The invention achieves a long storage stability.

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