Patent · US Expired

Two-step curable mixer-suitable materials

US7005460B2 · kind B2 · utility

5Cited by

14References

24Claims

0Family size

Assignee

KETTENBACH GMBH & CO. KG · DE

Inventors

Alexander Bublewitz · Herborn, DE
Jens-Peter Reber · Meinerzhagen, DE
Ulrich Nagel · Bingen, DE

Key dates

Filing date	Jan 24, 2002
Grant date	Feb 28, 2006
Priority date	—
Expiry date	Jan 24, 2022

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08G77/70
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

The present invention relates to a multi-component system for making impressions which contains After the mixing of the components, the materials according to the invention cure in two steps. At the beginning of mixing, the mixture, in a first state, has a mixer-suitable consistency, whereupon the mixture undergoes transition to a heavier-bodied second state due to condensation reactions of SiOR groups and/or hydrosilylation reactions of alkynyl groups with SiH groups, followed by transition to a third solid, elastic state following curing through a hydrosilylation reaction of alkenyl groups with SiH groups. The invention also relates to mixtures and components comprising further ingredients, as well as methods for the preparation of impressions.

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