A - Human Necessities – 61 – C
Patent
A - Human Necessities
61
C
117/128, 6/36
A61C 13/10 (2006.01) A61C 13/00 (2006.01) A61K 6/06 (2006.01) A61K 6/093 (2006.01) C03C 3/087 (2006.01) C03C 3/091 (2006.01) C03C 4/00 (2006.01) C03C 12/00 (2006.01) C04B 37/02 (2006.01)
Patent
CA 1053408
Abstract of the Disclosure A bonding agent composition for use in dental restorations for bonding porcelain to the metal core or framework, especially framework of non-precious metal alloys. The bonding agent composition comprises: (a) a bond-forming component comprising a powdered mixture of aluminum and a glass which fuses at a temperature in the range of from about 1750°F to about 1850°F and (b) ? liquid carrier. The carrier is preferably one capable of ? viding a reducing atmosphere at temperatures within the range of from about 1200°F to about 1900°F. The bonding agent composition is applied to a metal core which is to be faced with porcelain and heated from about 1200°F. to a temperature in the range of about 1750°F. to 1900°F. to produce a very strong bond at the interface resistant to separation of the porcelain by stresses placed upon the restoration during use.
254627
Lee-You James
Sung Pei
LandOfFree
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