C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 83/04 (2006.01) A61K 6/10 (2006.01) C08G 77/20 (2006.01) C08L 83/05 (2006.01)
Patent
CA 2115663
The storage-stable polysiloxane mass contains components (A), that comprises a polysiloxane mass with aliphatic double bonds and a noble metal catalyst; and (B), that comprises a polysiloxane mass with Si-H groups and if necessary further aliphatic double bonds. In addition, component (A) contains a noble metal catalyst-free hydrophilic modifier composed of a (poly)siloxane backbone with alkylene ether units chemically bound to the (poly)siloxane backbone and (i) residues with aliphatic double bonds, and/or component (B) contains the same modifier with (ii) Si-H groups and/or residues with aliphatic double bonds. This storage-stable polysiloxane mass is useful as a dental mould-taking mass.
Le mélange polysiloxane stable au stockage se compose des constituants (A), lequel comprend un mélange polysiloxane avec des liaisons doubles aliphatiques et un catalyseur à base de métal précieux; et (B), lequel comprend un mélange polysiloxane avec des groupes Si-H et le cas échéant des liaisons doubles aliphatiques supplémentaires. En outre, le constituant (A) contient un modificateur hydrophile sans catalyseur à base de métal précieux, composé d'un squelette (poly)siloxane auquel sont liées chimiquement des unités alkylènéther, et (i) de restes avec des liaisons doubles aliphatiques, et/ou le constituant (B) renferme le même modificateur avec (ii) des groupes Si-H et/ou des restes avec des liaisons doubles aliphatiques. Ce mélange polysiloxane stable au stockage est utile comme mélange de moulage dentaire.
Garhammer Arnold
Hefner Heinz
Huber Peter
Mueller Johann
Schmidlkofer Richard
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Wacker-Chemie Gmbh
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