Photosetting impression materials

Details Photosetting impression materials Photosetting impression materials

C - Chemistry, Metallurgy

08

G

C08G 18/06 (2006.01) A61C 9/00 (2006.01) A61K 6/09 (2006.01) A61K 6/10 (2006.01) C08G 18/12 (2006.01) C08G 18/67 (2006.01)

Patent

CA 2043853

23189-7240 ABSTRACT OF THE DISCLOSURE 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 unsat- urated groups is >2. Le A 27 590

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