Patent · US Expired

Dust-free alginate impression materials

US4695322A · kind A · utility

6Cited by

3References

8Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Peter Schwabe · Leverkusen, DE
Reiner Voigt · Leverkusen, DE

Key dates

Filing date	Sep 29, 1986
Grant date	Sep 22, 1987
Priority date	—
Expiry date	Sep 29, 2006

Classification

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

Abstract

In the making of an impression wherein an impression material comprising an alginate, a pulverulent material and a dust-reducing coating is mixed with water to form a paste, the paste is positioned about a mold member, and permitted to harden, the improvement wherein such coating comprises an iso-paraffin. There is reduced dusting.

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