Patent ID: 11944692
Assignee: VOCO GMBH
Field: Pharmaceuticals (Chemistry)
Classification: CPC A | IPC A

Claim 0:
1. Dental, light-curable, one-component composite composition, comprising:
(A) monomers,
(B) fillers, and
(C) initiators,
wherein:
the viscosity η20 of the composite composition at 20° C. is greater than 400 Pa*s and
the viscosity η50 of the composite composition at 50° C. is less than 150 Pa*s and
the quotient η50/η20 of the viscosity of the composite composition at 50° C. and the viscosity of the composite composition at 20° C. is less than 0.125, and wherein the (A) monomers consist of:
(A1) 10% to 60% by weight, of light-curable bi- or tricyclic compounds Q(YxZe)b wherein
Q denotes a saturated or olefinically unsaturated bi- or tricyclic structural element,
each index b is a natural number selected from the group of the natural numbers 1, 2, and 3,
each Z denotes a light-curable group,
each index e is a natural number selected from the group of the natural numbers 1, 2 and 3,
each Y in the structure Q(YxZe)b with x=1 denotes a structural element which connects the structural element Q to e structural elements Z and which denotes a straight or branched alkylene group, wherein the alkylene group may be interrupted by oxygen atoms, and each index x is 0 or 1,
(A2) 40% to 90% by weight, of 2,2-bis[4-(2-hydroxy-3-methacryloyloxypropoxy)phenyl]propane (bis-GMA) and/or light-curable derivatives of diisocyanatodiphenylmethane (MDI) and/or light-curable derivatives of tetramethyl-m-xylylene diisocyanate (TMXDI), and
(A3) 0% to 15% by weight, of further free-radically polymerizable monomers that cannot be assigned to (A1) or (A2),
wherein the percentages by weight (A1), (A2) and (A3) are based on the total mass of the monomers (A).