US Patent Application 20100063236 - Catalyst for Dealcoholization Condensation Reaction and Method for Producing Organopolysiloxane Using the Same
InventorsAssigneeUS Classes528/21, Material is a nitrogen-containing compound564/291, Acyclic556/413, Nitrogen attached indirectly to silicon by nonionic bonding502/158, Compound with Silicon-hydrogen bond or organic compound with silicon-carbon bond502/164Quaternary ammonium or phosphoniumAttorney, Agent or FirmForeign Documents
International ClassesC08G 77/08C07C 211/63 C07F 7/10 B01J 31/02 Issued Patent Number:8030429Abstract textIn the present invention, when an organopolysiloxane is produced by a dealcoholization condensation reaction between a silicon atom-bonded hydroxy group and a silicon atom-bonded alkoxy group, a quaternary ammonium ion-containing compound such as an alkylammonium hydroxide compound or a silanolate thereof is used as a catalyst. The catalyst for the dealcoholization condensation reaction of the present invention is easily removed after use and is stable. For this reason, when an organopolysiloxane is produced using the aforementioned catalyst, it is not necessary to use complicated production steps or a large amount of the catalyst. |
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