Catalyst and composition for silicone dental impression material

Details Catalyst and composition for silicone dental impression material Catalyst and composition for silicone dental impression material

1998-02-17

1999-12-07

Moore, Margaret G.

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

Synthetic resins

From silicon reactant having at least one...

573109, C08G 7708

Patent

active

059985615

ABSTRACT:
A curable silicone dental impression composition is presented, preferably comprising a polyorganohydrogensiloxane having at least one silicon-bonded hydrogen atom; a silicone polymer having at least alkenyl groups; a vinyl siloxane/platinum/palladium catalyst complex; and inorganic fillers and other additives known in the art. The catalyst in accordance with the present invention is a complex of 1,3-divinyltetramethyldisiloxane and hexachloroplatinic acid doped with palladium, and prevents outgassing of hydrogen. The final catalyst complex has a platinum content in the range from about 1.1%-1.2% platinum and 500-600 ppm palladium.

REFERENCES:
patent: 3715334 (1973-02-01), Karstedt
patent: 3775452 (1973-11-01), Karstedt
patent: 3814730 (1974-06-01), Karstedt
patent: 4020014 (1977-04-01), Service et al.
patent: 4273902 (1981-06-01), Tomioka et al.
patent: 4359565 (1982-11-01), Puppe et al.
patent: 4600751 (1986-07-01), Lee et al.
patent: 4657959 (1987-04-01), Bryan et al.
patent: 4782101 (1988-11-01), Waller et al.
patent: 4806575 (1989-02-01), Waller et al.
patent: 4957667 (1990-09-01), Hamer
patent: 5066714 (1991-11-01), Inoue et al.
patent: 5085811 (1992-02-01), Hamer
patent: 5086148 (1992-02-01), Jochum et al.
patent: 5258435 (1993-11-01), Huggins et al.
patent: 5367001 (1994-11-01), Itoh et al.
patent: 5596025 (1997-01-01), Oxman et al.
patent: 5684060 (1997-11-01), Konings et al.
patent: 5830951 (1998-11-01), Fiedler
"Silicones", Kirk-Othmer Encylopedia of Chemical Technology, 3d Ed., vol. 20, pp. 922-962 (1982).

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