A - Human Necessities – 61 – K
Patent
A - Human Necessities
61
K
6/37, 400/4104,
A61K 6/00 (2006.01) A61K 6/10 (2006.01) C08K 3/36 (2006.01) C08K 5/01 (2006.01) C08L 83/07 (2006.01)
Patent
CA 1277794
Docket No. Wa-8329 Paper No. 1 A PASTE COMPOSITION CONTAINING AN ORGANOPOLYSILOXANE, PLATINUM AND FILLER Abstract of the Disclosure A paste composition which is used in the preparation of dental impression compositions containing: (a) at least 100 ppm by weight, based on the weight of the paste composition of platinum calculated as the element; (b) 35 to 75 percent by weight, based on the weight of the paste composition, of a diorganopolysiloxane which contains at least 2 SiC-bonded vinyl groups per molecule and has a viscosity of at least 100 mPa.s at 25°C; (c) 10 to 25 percent by weight, based on the weight of the paste composition, of a hydrocarbon which is liquid or spreadable at room temperature and is free of aliphatic carbon-carbon multiple bonds; and (d) 3 to 15 percent by weight, based on the weight of the paste composition, of hydrophobic silicon dioxide having a surface area of at least 50 m2/g; in which the sum of the percentages of (a) to (d) including other additives which may be present in the paste composition is equal to 100 percent. The paste compositon is mixed with the other ingredients of the dental impression compositions such as diorganopolysiloxanes having SiC-bonded vinyl groups, organo- polysiloxanes having at least 3 Si-bond hydrogen atoms per molecule and filler to form dental impression compositions.
475429
Hechtl Wolfgang
Hefner Heinz
Louis Eckhart
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Hechtl Wolfgang
Hefner Heinz
Louis Eckhart
Wacker-Chemie G.m.b.h.
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