公开(公告)号：US20190161506A1

公开(公告)日：2019-05-30

申请号：US16201568

申请日：2018-11-27

申请人： Evonik Degussa GmbH

发明人： Caren ROEBEN ,  Ralph MOSER ,  Alexander KOEPFER ,  Stefanie MAYER ,  Andre HASSE ,  Frank FORSTER

IPC分类号： C07F7/18

摘要： The invention relates to silane mixtures comprising a silane of the formula I (R1)y(R2)3-ySi—R3—(S—R4)n—S—R5  (I) and a silane of the formula II (R1)y(R2)3-ySi—R3—(S—R4)z—S—R3—Si(R1)y(R2)3-y  (II) where the molar ratio of silane of the formula I to silane of the formula II is 20:80-90:10.The silane mixture according to the invention can be prepared by mixing the silanes of the formula I and silanes of the formula II.

公开(公告)号：US20200048285A1

公开(公告)日：2020-02-13

申请号：US16606012

申请日：2018-04-25

申请人： Evonik Degussa GmbH

发明人： Alexander KOEPFER ,  Oliver KLOCKMANN ,  Olga KUFELT ,  Stefanie MAYER ,  Caren ROEBEN ,  Sebastian ROSENSTINGL ,  Andre WEHMEIER

IPC分类号： C07F7/18 ,  C08K3/36

摘要： The invention relates to benzothiazole-containing silanes of the formula I which are prepared by reacting benzothiazole-containing silanes of the formula II with a compound of formula III R2—H  (III). The benzothiazole-containing silanes of the formula I can be used in rubber mixtures.

公开(公告)号：US20170210763A1

公开(公告)日：2017-07-27

申请号：US15415401

申请日：2017-01-25

申请人： Evonik Degussa GmbH

发明人： Roland KRAFCZYK ,  Burkhard STANDKE ,  Alexander KOEPFER ,  Sascha ERHARDT

IPC分类号： C07F7/02

CPC分类号： C07F7/025 ,  C08G77/08 ,  C08G77/18

摘要： A composition containing 2-ethylhexyl silicate, is produced by heating a reaction mixture of ethyl silicate with an excess amount of 2-ethylhexanol in the presence of titanium tetrabutoxide as catalyst to a temperature below the boiling point of 2-ethylhexanol while mixing, allowing the reaction mixture to react and, after the reaction, removing ethanol and excess 2-ethylhexanol from the reaction mixture by distillation and obtaining the composition containing 2-ethylhexyl silicate.

公开(公告)号：US20170291913A1

公开(公告)日：2017-10-12

申请号：US15484689

申请日：2017-04-11

申请人： Evonik Degussa GmbH

发明人： Roland KRAFCZYK ,  Alexander KOEPFER ,  Stefanie MAYER ,  Burkhard STANDKE

IPC分类号： C07F7/04

CPC分类号： C07F7/045 ,  C08G77/02 ,  C08G77/04 ,  C08K5/5415

摘要： A composition containing 2-propylheptyl silicate is obtained by heating ethyl silicate with an amount of 2-propylheptanol used in excess in the presence of titanium tetrabutoxide as catalyst to a temperature of not more than 220° C. while mixing, allowing them to react and, after the reaction, removing ethanol and excess 2-propylheptanol from the reaction mixture by distillation and obtaining the product, to obtain the composition comprising 2-propylheptyl silicate.