Patent · US Expired

Addition-crosslinking polyether impression material

US5849812A · kind A · utility

19Cited by

5References

21Claims

0Family size

Assignee

Thera Patent GmbH & Co KG Gesellschaft fur Industrielle Schutzrechte · DE

Inventors

Joachim W. Zech · Kaufering, DE
Erich Wanek · Kaufering, DE

Key dates

Filing date	May 9, 1997
Grant date	Dec 15, 1998
Priority date	—
Expiry date	May 9, 2017

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L71/02
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

An addition-crosslinking polyether impression material is described which ntains PA1 (a) at least one polyether which has at least two optionally substituted vinyl and/or allyl end-groups, PA1 (b) an SiH component, PA1 (c) at least one platinum catalyst, PA1 (d) optionally usual additives, and PA1 (e) an organopolysiloxane with at least two alkenyl groups. The impression material has in at least two-part form of administration in which the components (b) and (c) are spatially separated from each other a particularly satisfactory storage stability and has good mechanical properties in the cured state.

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