Patent · US Expired

Dental materials based on organic plastics in paste form

US4394465A · kind A · utility

13Cited by

13References

14Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Wolfgang Podszun · Neunburg vorm Wald, DE
Michael Walkowiak · Leverkusen, DE
Hans-Hermann Schulz · Leichlingen, DE

Key dates

Filing date	Sep 5, 1980
Grant date	Jul 19, 1983
Priority date	—
Expiry date	Sep 5, 2000

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61K6/887
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

The invention provides dental materials in paste form consisting essentially of (a) 18 to 50% by weight of a polymerizable binder, (b) 20 to 65% by weight of a crosslinked bead polymer with an average particle size of 5 to 150 .mu.m and (c) 5 to 45% by weight of glass beads with an average particle size of 5 to 80 .mu.m. The pastes of the invention are outstandingly suitable as a dental filling material.

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