A - Human Necessities – 61 – K
Patent
A - Human Necessities
61
K
A61K 6/027 (2006.01) A61K 6/06 (2006.01) A61K 6/083 (2006.01)
Patent
CA 2722657
A dental composition of the present invention includes: a polymerizable monomer component (A); and an amorphous filler (B) having an average particle size of 1 to 20 µm and including silica-based fine particles and coatings of an oxide that cover the surfaces of the silica-based fine particles. The oxide contains a zirconium atom, a silicon atom, and an oxygen atom. The dental composition contains 20 to 500 parts by weight of the filler (B) per 100 parts by weight of the polymerizable monomer component (A). The dental composition has a viscosity of to 800 Pa.s. It is preferable that the filler (B) contain spherical particles, and that the percentage of the spherical particles in the filler (B) be at least 60%.
L'invention concerne une composition dentaire contenant un composant monomère polymérisable (A) et une charge amorphe (B) qui contient de fines particules de silice et un oxyde qui recouvre les surfaces des fines particules de silice et qui contient un atome de zirconium, un atome de silicium et un atome d'oxygène, et présente un diamètre de particule moyen de 1-20 µm. La charge (B) est contenue en une quantité de 20 à 500 parties en poids pour 100 parties en poids du composant monomère polymérisable (A). La composition dentaire a une viscosité dans la plage allant de 10 à 800 Pa·s. La charge (B) contient de préférence des particules sphériques, et le taux des particules sphériques dans la charge (B) est de préférence supérieur ou égal à 60 %.
Kuboe Yoshiko
Ohtsuka Keisuke
Okada Koichi
Okubayashi Masaki
Jgc Catalysts And Chemicals Ltd.
Kirby Eades Gale Baker
Kuraray Medical Inc.
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