Composite material comprising a monomer with a polyalicyclic structure as sealing material

摘要

Composite material comprises (a) fillers, which is a mixture of fillers comprising (ai) non-agglomerated, organic surface-modified nanoparticles, (aii) microparticles, and (aiii) optionally additional fillers, (b) polymerizable monomers comprising (b1) at least two monomers comprising hydrocarbon compound (I), and (bii) optionally at least two additional radically polymerizable monomer comprising acrylates and methacrylates, preferably methacrylates, (c) at least one initiator and/or catalyst, and (d) further optionally at least one other additive. Composite material comprises (a) a total amount of 0.5-60 wt.% of fillers, based on the total mass of the composite material, as a filler component, where the total amount of filler is a mixture of fillers comprising (ai) a total amount of 0.5-60 wt.% of non-agglomerated, organic surface-modified nanoparticles with an average particle size of less than 200 nm, based on the total mass of the composite material, (aii) a total amount of 0-59.5 wt.% of microparticles with an average particle size of 0.4-10 mu m, based on the total mass of the composite material, and (aiii) optionally additional fillers, (b) a total amount of 24-98.5 wt.% of polymerizable monomers based on the total mass of the composite material, where the total amount of polymerizable monomer comprises (b1) at least two monomers comprising hydrocarbon compound of formula (Q(Y1 xZ e) b) (I), and (bii) optionally at least two additional radically polymerizable monomers comprising acrylates and methacrylates, preferably methacrylates, where at least one additional radically polymerizable monomer is not (I), (c) at least one initiator and/or catalyst, preferably in an amount of up to 1 wt.%, based on the total mass of the composite material, and (d) further optionally at least one other additive. Q : saturated or olefinically unsaturated polyalicyclic structural element comprising bicyclic, tricyclic, tetracyclic, pentacyclic and hexacyclic hydrocarbon, where optionally at least two hydrogen atoms this polyalicyclic structural element Q, which is not substituted by (Y1 xZ e) are substituted by alkyl, alkoxy, halo or trifluoromethyl; b, e : 1-4; Z : -O-(C=O)-CH=CH 2, -O-(C=O)-C(CH 3)=CH 2, -(C=O)-CH=CH 2, -(C=O)-C(CH 3)=CH 2, -CH=CH 2, -C(CH 3)=CH 2or -O-CH=CH 2; x : 0 or 1; and Y1 : structural element, which combines polyalicyclic structural element Q with e structure elements of Z, where x is 1.