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公开(公告)号：US11267976B2
公开(公告)日：2022-03-08
申请号：US17427982
申请日：2020-04-16
发明人： Patrick J. Fryfogle , Yihan Liu , Timothy P. Mitchell , Jennifer A. Reil , Michael R. Reiter , John Roberts , Gary M. Wieber , Brett L. Zimmerman
IPC分类号： C09D7/65 , C09D7/20 , C09D175/04
摘要： A composition contains a polyorganosiloxane dispersed in a combination of a condensation product of a polysiloxane resin and a polyoxyalkylene polymer, and a non-aqueous fluid carrier; wherein the weight-ratio of non-aqueous fluid carrier to condensation product is 0.5 or more and 10 or less; the weight-ratio of the combination of condensation product and non-aqueous fluid carrier to polyorganosiloxane is 0.01 or more and 0.50 or less; and wherein the composition contains less than one weight-part aromatic solvent per million weight parts composition.
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公开(公告)号：US11136436B2
公开(公告)日：2021-10-05
申请号：US15734086
申请日：2019-07-03
发明人： John Roberts , Matthew Belowich , Thomas Peterson , Vladimir Pushkarev , Evelyn Auyeung , Mark Rickard
摘要： A method for making long chain hydroxyl terminated polydiorganosiloxanes with low cyclics content via condensation polymerization employs a selective catalyst. The catalyst includes a salt-anion complex and a free acid.
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公开(公告)号：US20210292346A1
公开(公告)日：2021-09-23
申请号：US17261592
申请日：2019-08-21
摘要： A method is useful for preparing alkylalkoxysilanes, such as alkylalkoxysilanes, particularly dimethyldimethoxysilane. The method includes heating at a temperature of 150° C. to 400° C., ingredients including an alkyl ether and carbon dioxide, and a source of silicon and catalyst. The carbon dioxide eliminates the need to add halogenated compounds during the method.
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公开(公告)号：US20210163686A1
公开(公告)日：2021-06-03
申请号：US17259720
申请日：2019-07-03
发明人： Matthew Belowich , Mark Rickard , Vladimir Pushkarev , Shaungbing Han , Evelyn Auyeung , John Roberts , Thomas Peterson
IPC分类号： C08G77/08
摘要： A method for making long chain hydroxyl terminated polydiorganosiloxanes with low cyclics content via condensation polymerization employs a trifluoromethane sulfonate compound catalyst. The trifluoromethane sulfonate may be complexed with a multidentate ligand.
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公开(公告)号：US11319335B2
公开(公告)日：2022-05-03
申请号：US17261594
申请日：2019-08-21
发明人： Dimitris Katsoulis , John Roberts
摘要： A method for preparing a hydrocarbylhydrocarbyloxysilane of formula RaHpSi(OR)(4-a-b), where each R is independently a hydrocarbyl group and subscript a is 1 to 4 and subscript b is 1 to 2 is disclosed. The method includes heating ingredients including a hydrocarbyl carbonate and a source of silicon and catalyst. The method can be used to make dimethyldimethoxysilane.
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公开(公告)号：US20210221956A1
公开(公告)日：2021-07-22
申请号：US15734086
申请日：2019-07-03
发明人： John Roberts , Matthew Belowich , Thomas Peterson , Vladimir Pushkarev , Evelyn Auyeung , Mark Rickard
摘要： A method for making long chain hydroxyl terminated polydiorganosiloxanes with low cyclics content via condensation polymerization employs a selective catalyst. The catalyst includes a salt-anion complex and a free acid.
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公开(公告)号：US20230103096A1
公开(公告)日：2023-03-30
申请号：US17799326
申请日：2021-03-24
发明人： Eric Joffre , Xiaoyuan Zhou , John Roberts
摘要： A branched organosilanol compound and method for its preparation are provided. The branched organosilanol compound may be used as a starting material in a method for preparing a functionalized polymer.
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公开(公告)号：US11168098B2
公开(公告)日：2021-11-09
申请号：US17261592
申请日：2019-08-21
摘要： A method is useful for preparing alkylalkoxysilanes, such as alkylalkoxysilanes, particularly dimethyldimethoxysilane. The method includes heating at a temperature of 150° C. to 400° C., ingredients including an alkyl ether and carbon dioxide, and a source of silicon and catalyst. The carbon dioxide eliminates the need to add halogenated compounds during the method.
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公开(公告)号：US20210277033A1
公开(公告)日：2021-09-09
申请号：US17261594
申请日：2019-08-21
发明人： Dimitris Katsoulis , John Roberts
摘要： A method for preparing a hydrocarbylhydrocarbyloxysilane of formula RaHpSi(OR)(4-a-b), where each R is independently a hydrocarbyl group and subscript a is 1 to 4 and subscript b is 1 to 2 is disclosed. The method includes heating ingredients including a hydrocarbyl carbonate and a source of silicon and catalyst. The method can be used to make dimethyldimethoxysilane.
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公开(公告)号：US11028230B1
公开(公告)日：2021-06-08
申请号：US17259720
申请日：2019-07-03
发明人： Matthew Belowich , Mark Rickard , Vladimir Pushkarev , Shaungbing Han , Evelyn Auyeung , John Roberts , Thomas Peterson
IPC分类号： C08G77/08
摘要： A method for making long chain hydroxyl terminated polydiorganosiloxanes with low cyclics content via condensation polymerization employs a trifluoromethane sulfonate compound catalyst. The trifluoromethane sulfonate may be complexed with a multidentate ligand.
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