Patent ID: 8916623

Claim:
A curable, single- or multi-component composition for dental impression, comprising: a curable base composition and a surfactant system comprising 0.5 to 3% by weight of a first surfactant, which is one or more compounds of formula wherein o is an integer from 5 to 22, p is an integer from 2 to 20, q is an integer from 0 to 5, and R 2 is independently hydrogen or methyl for each repeat unit, 0.5 to 3% by weight of a second surfactant, selected from the group of non-ionic fluorosurfactants, 0 to 3% by weight of a third surfactant, selected from the group of silicone surfactants, wherein the total quantity of first, second and third surfactant is within the range of from 1.5% by weight to 6% by weight, provided that the mass ratio of the first surfactant to the second surfactant is 1.4 or less when the content of the third surfactant is within the range of from 0 to less than 0.5% by weight and the total quantity of first and second surfactant is 2% by weight or less, all the percentages by weight being based on the total mass of the composition.