Dentin and enamel adhesive
AssigneeMinnesota Mining and Manufacturing Company
InventorJames E. Bunker
Life of this patent
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Abstract
Organic esters of chlorine-containing or bromine-containing phosphorus acids and BIS-GMA, and organic esters of phosphorus acids having chlorine or bromine bonded directly to phosphorus (are described), the organic radical of said esters containing at least one polymerizable functional group. Also described are dental line, restorative, composite, and adhesive compositions containing such organic esters, as well as methods for using such compositions to repair or veneer dental tissue.
Claims9
An adhesive which comprises a polymerizable composition consisting of (a) 1 part by weight of a monomer represented by the formula ##STR11## where R.sub.1 denotes H or CH.sub.3 ;
- R.sub.a denotes a C.sub.6-40 organic residue having a valence of m+l:
- X.sub.1 and X.sub.2 denote O, S or NR', (where R' denotes H or a C.sub.1-6 hydrocarbon group), two of X.sub.1 may be different from each other when m is 2;
- z denotes a halogen;
- and m is 1 or 2 and k is 0 or 1, and (b) up to 199 parts by weight of a monomer selected from the group consisting of mono-, di-, tri-, and tetrafunctional (meth)acrylates, styrene, divinyl benzene, p-chloro-styrene, (meth)acrylamide or derivatives thereof, N-(hydroxymethyl)acrylamide, (meth)acrylic acid, isobutylvinyl ether, vinyl acetate, diethyl fumarate, diethyl maleate, maleic anhydride, methyl vinyl ketone, allyl chloride, vinyl naphthalene and vinylpyridine or combinations thereof.
An adhesive which comprises a polymerizable composition consisting of (a) a monomer represented by the formula ##STR12## where R.sub.1 denotes H or CH.sub.3 ;
- R.sub.a denotes a C.sub.3-37 organic residue having a valence of M+l;
- X.sub.1 denotes O, S or non-basic N;
- Z denotes Cl or Br;
- and m is 1 or 2, and (b) a monomer selected from the group consisting of mono- and difunctional (meth)acrylates or combinations thereof.
Dependencies are inferred from the claim text.