Patent · US Expired

Radically curable urethane prepolymers and their use in dental materials

US7141616B2 · kind B2 · utility

12Cited by

7References

19Claims

0Family size

Assignee

3M ESPE AG · DE

Inventors

Reinhold Hecht · Kaufering, DE
Gunther Lechner · Herrsching am Ammersee, DE
Thomas Lehmann · Sinzing, DE
Gunther Eckhardt · Frieding, DE
Bernd Gangnus · Andechs, DE

Key dates

Filing date	Dec 15, 2000
Grant date	Nov 28, 2006
Priority date	—
Expiry date	Jun 12, 2021

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08G18/672
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

The invention relates to urethane prepolymers, obtainable by reaction of:

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