Patent · US Expired

Dental impression materials

US4035453A · kind A · utility

51Cited by

11References

32Claims

0Family size

Assignee

Wacker Chemie AG · DE

Inventors

Paul Hittmair · Burghausen, DE
Wolfgang Hechtl · Burghausen, DE
Eckhart Louis · Burghausen, DE
Ernst Wohlfarth

Key dates

Filing date	Nov 6, 1975
Grant date	Jul 12, 1977
Priority date	—
Expiry date	Nov 6, 1995

Classification

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

Abstract

The invention relates to a method for preparing a dental impression which comprises applying a dental impression material to a tooth of which an impression is to be taken, curing the material and thereafter removing the resulting impression from the tooth, said dental impression material being a mixture of PA1 A. a diorganopolysiloxane containing terminal triorganosiloxy groups in which at least one vinyl group is present in each of the triorganosiloxy groups, PA1 B. an organopolysiloxane having at least three Si-bonded hydrogen atoms per molecule, PA1 C. a catalyst capable of promoting the addition of Si-bonded hydrogen to vinyl groups at room temperature and, if desired, PA1 D. additives such as fillers, pigments, flavoring substances and plasticizers.

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