公开(公告)号：US20230056138A1

公开(公告)日：2023-02-23

申请号：US17784082

申请日：2020-12-11

申请人： DOW SILICONES CORPORATION

发明人： Xiaoyuan ZHOU ,  Zhanjie LI ,  Eric JOFFRE

IPC分类号： C07F7/08 ,  C07F7/20

摘要： Described herein are methods for making alkenyl disiloxanes, comprising combining an alkenyl halosilane with a bis-hydrido terminated alkyl disiloxane and adding the mixture to water, an acidic aqueous solution, or a basic aqueous solution. The ratio of the alkenyl halosilane to the bis-hydrido terminated alkyl disiloxane is about 1:10 to about 10:1. The alkenyl halosilane and bis-hydrido terminated alkyl disiloxane are mixed at about 20° C. to about 45° C. In an example, no organic solvent is present. The reaction product is separated and washed with saturated NaHCO3 solution (e.g., sodium bicarbonate).

公开(公告)号：US20230265290A1

公开(公告)日：2023-08-24

申请号：US18012193

申请日：2021-06-23

申请人： DOW SILICONES CORPORATION

发明人： Elizabeth M. SANTOS ,  Eric JOFFRE ,  Scott D. BOELTER ,  Nanguo LIU ,  Xiaoyuan ZHOU

IPC分类号： C08L83/06 ,  C08K3/013 ,  C08K5/14 ,  C08J7/04 ,  C08J7/18 ,  C08G77/08

CPC分类号： C08L83/06 ,  C08K3/013 ,  C08K5/14 ,  C08J7/0427 ,  C08J7/18 ,  C08G77/08 ,  C08L2205/025 ,  C08J2469/00 ,  C08J2383/06

摘要： Curable silicone elastomer compositions having enhanced adhesive properties with respect to a wide variety of substrates are described. The compositions described herein are provided with a phenylmethylpolysiloxane based additive which comprises at least one, alternatively at least two Si—H groups per molecule and at least one, alternatively at least two epoxide functional groups per molecule. Said phenylmethylpolysiloxane based additives provide resulting elastomers with improved heat-humidity stabilization.

公开(公告)号：US20230295193A1

公开(公告)日：2023-09-21

申请号：US18013877

申请日：2021-06-30

申请人： DOW SILICONES CORPORATION ,  DOW GLOBAL TECHNOLOGIES LLC

发明人： André YVON-BESSETTE ,  John ROBERTS ,  Nanguo LIU ,  Xiaoyuan ZHOU ,  Eric JOFFRE

IPC分类号： C07F7/08 ,  C07F7/18

CPC分类号： C07F7/0896 ,  C07F7/1804 ,  C07F7/188

摘要： A method of preparing a multifunctional organosilicon compound is provided. The method comprises reacting (A) an organosilanol compound comprising a functional moiety selected from alkoxysilyl moieties and acryloxy moieties and (B) a hydridosilane compound having at least two hydrolysable groups in the presence of (C) an acetate salt. A multifunctional organosilicon compound prepared according to the method is also provided.

公开(公告)号：US20230099625A1

公开(公告)日：2023-03-30

申请号：US17784084

申请日：2020-12-11

申请人： DOW SILICONES CORPORATION

发明人： Xiaoyuan ZHOU ,  Zhanjie LI ,  Eric JOFFRE

IPC分类号： C07F7/08

摘要： Described herein are methods for making alkenyl disiloxanes, comprising combining an alkenyl halosilane with an alkyl halosilane and adding the mixture to water, an acidic aqueous solution, or a basic aqueous solution. The ratio of the alkenyl halosilane to the alkyl halosilane is about 10:1 to about 1:10. The alkenyl halosilane and the alkyl halosilane are mixed at about 20° C. to about 45° C. The reaction product is separated and washed with saturated alkali carbonate solution.