COMPOSITIONS CONTAINING INORGANIC, ORGANIC AND ORGANOMETALLIC PALLADIUM HYDROGEN SCAVENGERS

摘要

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.