Photosetting impression materials
AssigneeBayer Aktiengesellschaft
InventorsHanns P. Muller, Reiner Voigt, Jens Winkel, Peter Schwabe
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Abstract
A method of making a dental impression which comprises applying to the structure of which an impression is to be made a special prepolymer. The prepolymer is composed of units of at least one macrodiol, at least one aliphatic polyisocyanate, and an unsaturated monoalcohol as chain terminator, wherein the average functionality of the prepolymer based on the unsaturated groups is >2.
Claims7
A method of making a dental impression which comprises applying the structure of which an impression is to be made a photosettable prepolymer composed of units of at least one macrodiol, at least one aliphatic polyisocyanate, and an unsaturated monoalcohol as chain terminator, wherein the average functionality of the prepolymer based on the unsaturated group is >2, and exposing the prepolymer to light thereto to effect its polymerization.
Dependencies are inferred from the claim text.