Compositions containing inorganic, organic and...

A - Human Necessities – 61 – K

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Details

A61K 6/10 (2006.01) C08K 3/10 (2006.01) C08L 83/04 (2006.01) G02B 6/44 (2006.01)

Patent

CA 2250001

The present invention provides an addition-curable composition containing an inorganic, organic or organometallic compound of palladium in an amount effective to reduce the amount of hydrogen gas evolved in the reaction of the composition. A preferred embodiment is a dental impression material composition comprising: (a) an addition- curable compound; (b) a crosslinker; (c) a platinum-containing catalyst; and (d) a palladium compound. This generally provides a positive gypsum model of, for example, a dental impression that is substantially free of pits.

La présente invention concerne une composition durcissable par addition contenant un composé inorganique, organique ou organométallique de palladium dans une quantité suffisamment efficace pour réduire la quantité de gaz hydrogène dégagé lors de la réaction de la composition. Une composition de matériau d'empreinte dentaire contenant: (a) une composition durcissable par addition; (b) un agent de réticulation; (c) un catalyseur contenant du platine; et (d) un composé de palladium, constitue l'un des modes préférés de réalisation. Cette composition permet d'obtenir un modèle positif en plâtre d'une empreinte dentaire, par exemple, pratiquement sans cratères.

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