| US 7,488,762 B2 | ||
| Two paste-type glass ionomer cement | ||
| Satosi Takano, Kyoto (Japan); Toshiyuki Nakatsuka, Kyoto (Japan); Mikito Deguchi, Kyoto (Japan); Shinji Urabe, Kyoto (Japan); and Toshimasa Ohnishi, Kyoto (Japan) | ||
| Assigned to Kabushiki Kaisha Shofu, Osaka (Japan); and Nagase Chemtex Corporation, Osaka (Japan) | ||
| Filed on Apr. 24, 2006, as Appl. No. 11/409,268. | ||
| Claims priority of application No. 2005-126751 (JP), filed on Apr. 25, 2005. | ||
| Prior Publication US 2006/0247330 A1, Nov. 02, 2006 | ||
| Int. Cl. A61K 6/083 (2006.01) | ||
| U.S. Cl. 523—117 [523/116; 433/228.1] | 6 Claims |
| 1. A two paste glass ionomer cement which comprises a resin-based paste and a water-based paste, which is characterized in
that:
the resin-based paste is substantially free of water and comprises (a) a hydrophobic polymerizable monomer and (b) a polymer
of acidic group-containing polymerizable monomers, wherein (a) the hydrophobic polymerizable monomer and (b) the polymer of
acidic group-containing polymerizable monomers are insoluble to each other and (b) the polymer of acidic group-containing
polymerizable monomers exists in a solid state in the resin-based paste, and
the water-based paste comprises (c) a hydrophilic polymerizable monomer and (d) water, wherein (c) the hydrophilic polymerizable
monomer and (d) the water are soluble to each other, and wherein
(1) at least one of the resin-based paste and the water-based paste contains (e) an acid reactive filler and (f) a polymerization
catalyst together;
(2) the resin-based paste contains (e) an acid reactive filler and the water-based paste contains (f) a polymerization catalyst;
or
(3) the resin-based paste contains (f) a polymerization catalyst and the water-based paste contains (e) an acid reactive filler.
|