A - Human Necessities – 61 – K
Patent
A - Human Necessities
61
K
A61K 6/10 (2006.01) C08J 3/24 (2006.01) C08K 5/00 (2006.01) C08L 83/04 (2006.01) G01N 31/22 (2006.01) G01N 33/44 (2006.01)
Patent
CA 2191238
The present invention provides novel dental impression materials, the cure of which can be monitored visually, comprising: (1) a curable silicone polymer, (2) a crosslinker compound containing silicon- bonded-hydrogen groups; (3) a hydrosilation catalyst; and (4) one or more cure-indicating dyes that exhibit a color change in the presence of a silicon-bonded-hydrogen compound and a hydrosilation catalyst. The cure-indicating dye provides the composition with an initial pre- cure color and a different post-cure color. As a result of this change in color, the state of cure of the impression material can be visually monitored.
La présente invention concerne de nouveaux matériaux d'empreinte dentaire, dont la polymérisation peut être contrôlée visuellement, et comprenant: (1) un polymère siliconé polymérisable; (2) un composé réticulant contenant des groupes hydrogène à liaison silicium; (3) un catalyseur d'hydrosilylation; et (4) un ou plusieurs colorants révélant la polymérisation et présentant un changement de teinte en présence d'un composé hydrogène à liaison silicium et d'un catalyseur d'hydrosilylation. Ce colorant révélant la polymérisation confère à la composition une teinte initiale avant polymérisation et une teinte différente après polymérisation. Ce changement de teinte permet de contrôler visuellement l'état de polymérisation du matériau d'empreinte.
Konings Mark S.
Oxman Joel D.
Tiers George V. D.
Vogel Dennis E.
Vogel Kim Marie
Minnesota Mining And Manufacturing Company
Smart & Biggar
LandOfFree
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