| US 7,524,889 B2 | ||
| Light emitting diode curable acrylates with reduced yellowing | ||
| Li Feng, Naperville, Ill. (US); and Byoung I. Suh, Oak Brook, Ill. (US) | ||
| Assigned to Bisco, Inc., Schaumburg, Ill. (US) | ||
| Filed on Jul. 06, 2006, as Appl. No. 11/481,544. | ||
| Prior Publication US 2008/0009557 A1, Jan. 10, 2008 | ||
| Int. Cl. C08F 2/48 (2006.01); C08F 2/50 (2006.01); A61K 6/00 (2006.01); A61K 6/083 (2006.01) | ||
| U.S. Cl. 522—2 [522/25; 522/48; 522/182; 522/173; 522/28; 522/64; 522/183; 523/116; 433/228.1] | 28 Claims |
| 1. A dental composition comprising
a. a multiacrylate compound,
b. an initiator system capable of initiating photopolymerization of the multiacrylate compound to form a surface lacking an
oxygen inhibited layer, the initiator system comprising camphorquinone (CQ) in an amount at least about 1% by weight of the
composition and an amine, and
c. a colorless anti-yellowing agent operable to visibly reduce the discoloration of the initiator system when exposed to a
curing irradiation.
|