US 5,076,844 A · Perfluoroalkyl group-containing (meth-)acrylate esters, their synthesis and use in dental technology

Abstract

Macromonomeric (meth-)acrylate esters, having fluoroalkyl groups are disclosed. The esters have the general formula ##STR1## wherein R.sup.1 is the same or different and represents a hydrogen or fluorine group R.sup.2 is the same or different and represents a hydrogen or methyl group, a has a value of 0, 1, 2, 3 or 4, c has a value of 2, 3 or 4, b has an average value of 2 to 30 n has an average value of 4 to 12 and m has an average value of 3 to 14. The products can be used in dentistry, preferably as relining material for dental prostheses. The esters have a lower solubility and a higher mechanical strength when cured and adhere to already cured poly(methyl methacrylate).

Claims5

Dependent claims

A dental preparation curable after application to dental work, said preparation comprising an effective amount of a macromonomeric (meth-)acrylate ester containing fluoroalkyl groups of the general formula ##STR5## wherein R.sup.1 is the same or different and represents a hydrogen or fluorine group

R.sup.2 is the same or different and represents a hydrogen or fluorine group
R.sup.2 is the same or different and represents a hydrogen or methyl group,
a has a value of 0, 1, 2, 3 or 4,
c has a value of 2, 3 or 4,
b has an average value of 2 to 30
n has an average value of 4 to 12 and
m has an average value of 3 to 14.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application

07/580,863Filed 11 Sep 1990 · division

Priority

27 Nov 1989

Granted

31 Dec 1991

Term ends

Not estimatedThe source records don’t support an estimate.

Classification9 codes

A61K 6/887
Comprising natural or synthetic resins: compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
C07C 271/16
With the nitrogen atoms of the carbamate groups bound to hydrogen atoms or to acyclic carbon atoms: to carbon atoms of hydrocarbon radicals…
C08F 20/36
Esters containing nitrogen , e.g. N,N-dimethylaminoethyl acrylate: containing oxygen in addition to the carboxy oxygen , e.g. 2-N-morpholinoethyl…
C08G 18/2885
Compounds containing at least one heteroatom other than oxygen or nitrogen: containing halogen atoms

Perfluoroalkyl group-containing (meth-)acrylate esters, their synthesis and use in dental technology

Life of this patent

Perfluoroalkyl group-containing (meth-)acrylate esters, their synthesis and use in dental technology

Life of this patent

Abstract

Claims5