The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 02, 1998
Filed:
Mar. 07, 1997
Applicant:
Inventors:
Assignee:
Heraeus Kulzer GmbH, Hanau, DE;
Primary Examiner:
Int. Cl.
CPC ...
A61C / ; C08G / ;
U.S. Cl.
CPC ...
523115 ; 523116 ; 523118 ; 528272 ; 528296 ; 528306 ; 106 35 ; 4332281 ;
Abstract
A condensation product of a hydroxy(meth)acrylate compound corresponding to the formula ##STR1## in which R.sub.1 is hydrogen or methyl, A is a trivalent aliphatic residue with 3 to 15 C-atoms which is unsubstituted or substituted with OH groups and optionally contains up to 5 ether bridges, and an aromatic carboxylic acid anhydrides compound of the formula (II) or an aromatic carboxylic acid anhydride chloride compound of the formula (II) ##STR2## in which Ar is a benzene ring or a naphthalene ring, n is 1 or 2, and m is 0, 1 or 2. The condensation product has a molar mass of 300 and to 10,000 daltons. The condensation product is useful as an adhesive to bond dental filling materials to teeth.