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US 5,849,270 AGranted
Dental adhesives
AssigneeHeraeus Kulzer GmbH
InventorsWolfgang Podszun, Werner Finger
Life of this patent
Estimating the term…
Abstract
The adhesion of resin material to the solid substance of the tooth and to metals and metal alloys, for example, dental alloys, can be improved with a photo-polymerizable formulation containing hydroxyalkyl(meth)acrylates, urethanedi(meth)acrylates and, if applicable, esters of aromatic polycarboxylic acids possessing methacryloyloxy groups.
Claims12
A formulation for use as an adhesive component, said formulation consisting of
- a) 10-40% by weight of an hydroxyalkyl(meth)acrylate,
- b) 10-40% by weight of an urethanedi(meth)acrylate, selected from the urethanedi(meth)acrylates according to formulas I to VII ##STR14## c) 30-70% by weight of a volatile solvent miscible with water, d) 0.01-2.5% by weight of a photo-initiator and
- e) 0-40% by weight of generally known additives.
Dependencies are inferred from the claim text.