Patent ID: 8642678

Claim:
A polymerizable dental composite comprising at least 50 weight-% solid filler and an organic polymerizable matrix, said polymerizable matrix comprising: (i) at least one polymerizable (meth)acrylic monomer having at least two polymerizable groups and not containing a carboxylic acid group; and (ii) a dispersant including at least one polymerizable monomer having a single carboxylic acid group, said polymerizable monomer having said single carboxylic acid group is a compound of the following formula: wherein R 2 and R 3 are independently H, a C 1-6 alkyl group or a C 1-6 alkylidene group, whereby the dashed double line indicates a single bond or a double bond; m is 5, whereby multiple groups R 2 may be identical or different; X is O or NR 8 , R 8 being hydrogen or an alkyl group; and Y is a group containing one or more polymerizable ethylenically unsaturated groups.