Patent · US Expired

Liquid crystalline (meth)acrylate compounds, composition and method

US5998499A · kind A · utility

24Cited by

139References

37Claims

0Family size

Assignee

Dentsply G.m.b.H. · DE

Inventors

Joachim E. Klee · Radolfzell, DE
Holger Frey · Emmendingen, DE
Dirk Hölter · Emmendingen, DE
Rolf Mulhaupt · Marly, CH

Key dates

Filing date	Oct 7, 1996
Grant date	Dec 7, 1999
Priority date	—
Expiry date	Oct 7, 2016

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09K2019/0448
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

A liquid crystalline compound, a polymeric product formed by polymerization of the liquid crystalline compound, a dental composition including the liquid crystalline compound and method of using the dental composition. Polymerization of the liquid crystalline compound results in an low volume percent shrinkage and a high conversion to polymer. The composition of the invention is useful for dental adhesive, primer, cement, pit and fissure sealant and restorative.

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