Self-etching dental materials based on (METH) acrylamide...

Details Self-etching dental materials based on (METH) acrylamide... Self-etching dental materials based on (METH) acrylamide...

2005-08-25

2009-11-24

Pezzuto, Helen L. (Department: 1796)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S263000, C526S265000, C526S277000, C526S304000, C526S305000, C526S307200, C526S307300, C526S307500, C526S307600, C526S307700, C526S306000

Reexamination Certificate

active

07622538

ABSTRACT:
Polymerizable dental material, characterized in that it contains at least one (meth)acrylamide phosphate of the following general formula (I):in which R1is H or CH3; R2is H or a C1-C4alkyl radical or forms together with the nitrogen atom to which it is bonded and one or more atoms which belong to R3or R3′a heterocyclic ring; R3, R3′independently of each other are a linear or branched aliphatic C1-C50radical with a valency of m+n or p+n, an aromatic C6-C18radical with a valency of m+n or p+n, or a cycloaliphatic, araliphatic or heterocyclic C3-C18radical with a valency of m+n or p+n, wherein the carbon chains of the radical or radicals can be interrupted by O, S, CONR4, OCONH, or form together with one or more atoms which belong to R2and the nitrogen atom, to which the R2is bonded a heterocyclic ring, R3′ being H if p=0, and R4being H, C1-C10alkyl, C6-C12aryl, C6-10aralkyl or a bicylic C4-C12radial; n is 1, 2, 3 or 4 if p=0, and is 1 or 2 if p ≠0; m is 1, 2, 3 or 4; p is 0, 1, 2, 3 or 4; x is 0 or S.

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