Silicone composition for dental impressions

Details Silicone composition for dental impressions Silicone composition for dental impressions

1995-07-21

1997-06-10

Dean, Ralph H.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

524506, 524413, 524448, A61K 610

Patent

active

056376286

ABSTRACT:
A dental impression-taking silicone composition is provided, which comprises A) 100 parts by weight of an organopolysiloxane having at least two aliphatic unsaturated groups per molecule, B) 0.1 to 30 parts by weight of an organohydrogenpoly-siloxane having per molecule at least three hydrogen atoms directly bonded to a silicone atom, C) 10 to 500 ppm of a silicone-soluble platinum compound, as calculated on the basis of the total amount of A) and B), D) 5 to 500 parts by weight of an inorganic filler, and E) 1 to 200 parts by weight of a polyvinyl ether having a polymerization degree of 1,000 to 50,000. This composition provides a paste mixture having an increased strain in compression after curing and a reduced permanent deformation after curing and unlikely to run down during impression-taking. Upon cured, oil matter does not bleed out of the surface of the cured mixture.

REFERENCES:
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patent: 4096159 (1978-06-01), Hechtl et al.
patent: 4222938 (1980-09-01), August et al.
patent: 4273902 (1981-06-01), Tomioka et al.
patent: 4568707 (1986-02-01), Voigt et al.
patent: 4965296 (1990-10-01), Schwabe et al.

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