C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 59/24 (2006.01) C08G 65/22 (2006.01) C09D 171/00 (2006.01) C09D 183/12 (2006.01)
Patent
CA 2632576
Branched polyglycols and branched polyether functional organopolysiloxanes are disclosed as is a process for making branched polyether functional organopolysiloxanes by reacting an organohydrogensiloxane and a branched polyglycol having an unsaturated group via a hydrosilylation reaction, as well as coating compositions containing branched polyether functional organopolysiloxanes and a binder are disclosed. Coatings resulting from these compositions were more hydrophilic and had improved dirt release properties as compared to coatings containing similar, but un-branched, polyether functional organopolysiloxanes.
L'invention concerne des polyglycols ramifiés et des polyorganosiloxanes ayant une fonction polyéther ramifiés ainsi qu'un procédé servant à fabriquer des polyorganosiloxanes ayant une fonction polyéther ramifiés en faisant réagir un organohydrogénosiloxane et un polyglycol ramifié ayant un groupe insaturé via une réaction d'hydrosilylation, ainsi que des compositions de revêtement contenant des polyorganosiloxanes ayant une fonction polyéther ramifiés et un liant. Les revêtements résultant de ces compositions étaient plus hydrophiles et avaient de meilleures propriétés anti-salissure par rapport à des revêtements contenant des polyorganosiloxanes ayant une fonction polyéther similaires mais non ramifiés.
Ferritto Michael S.
Fournier Frances M.
Stanga Michael A.
Varineau Pierre T.
Whitmarsh Robert H.
Dow Corning Corporation
Gowling Lafleur Henderson Llp
The Dow Chemical Company
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