Evonik Operations Gmbh

Evonik Degussa Gmbh

Caren Roeben

Frank Forster

Alexander Koepfer

Andre Hasse

Stefanie Mayer

Sascha Erhardt

Ralph Moser

Sebastian Rosenstingl

Oliver Klockmann

Anke Blume

Torsten Peterle

Julia Keck

Olga Kufelt

Andre Wehmeier

The invention relates to silane mixtures comprising a silane of the formula I((R)(R)Si&#x2014;R&#x2014;SH&#x2003;&#x2003;(I)and a silane of the formula II(R)(R)Si&#x2014;R&#x2014;(S&#x2014;R)&#x2014;Si(R)(R)&#x2003;&#x2003;(II)where the molar ratio of silane of the formula I to silane of the formula II is 20:80-85:15. The silane mixture according to the invention can be prepared by mixing the silanes of the formula I and silanes of the formula II.

Silane mixtures and process for preparing same

The invention relates to silane mixtures comprising a silane of the formula I(R)(R)Si&#x2014;R&#x2014;(S&#x2014;R)&#x2014;S&#x2014;R&#x2003;&#x2003;(I)and a silane of the formula II(R)(R)Si&#x2014;R&#x2014;Si(R)(R)&#x2003;&#x2003;(II)where the molar ratio of silane of the formula I to silane of the formula II is 15:85-90:10. The silane mixture according to the invention can be prepared by mixing the silanes of the formula I and silanes of the formula II.

The invention relates to silane mixtures comprising a silane of the formula I(R)(R)Si&#x2014;R&#x2014;(S&#x2014;R)&#x2014;S&#x2014;R&#x2003;&#x2003;(I)and a silane of the formula II(R)(R)Si&#x2014;R&#x2014;S&#x2014;R&#x2014;S&#x2014;R&#x2014;Si(R)(R)&#x2003;&#x2003;(II)where the molar ratio of silane of the formula I to silane of the formula II is 15:85-90:10. The silane mixture according to the invention can be prepared by mixing the silanes of the formula I and silanes of the formula II.

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 IIIR&#x2014;H&#x2003;&#x2003;(III). The benzothiazole-containing silanes of the formula I can be used in rubber mixtures.

Benzothiazole-containing silanes, method for the preparation and use thereof

The invention relates to rubber mixtures, said rubber mixtures comprising (a) at least one rubber, excluding silicone rubber, chloroprene rubber, bromobutyl rubber, fluoro rubber and nitrile rubber, The rubber mixture is produced by mixing the rubber, silane of general formula (I), amine compound and bifunctional silane.

Rubber mixtures

The invention relates to silane mixtures comprising a silane of the formula I(R)(R)Si&#x2014;R&#x2014;(S&#x2014;R)&#x2014;S&#x2014;(R&#x2014;S)&#x2014;R&#x2014;Si(R)(R)&#x2003;&#x2003;(I)and a silane of the formula II(R)(R)Si&#x2014;R&#x2014;(S&#x2014;R)&#x2014;S&#x2014;R&#x2014;Si(R)(R)&#x2003;&#x2003;(II)where the molar ratio of silane of the formula I to silane of the formula II is 19:81-81:19. The silane mixture according to the invention can be prepared by mixing the silanes of the formula I and silanes of the formula II.

Silane mixtures and processes for preparation thereof

The invention relates to rubber mixtures, wherein these comprise at least one rubber, excluding silicone rubber, and at least one silatrane of general formula (I)G-Si(&#x2014;O&#x2014;CXX&#x2014;CXX&#x2014;)N&#x2003;&#x2003;(I) The rubber mixture is produced by mixing at least one rubber and a silatrane of formula (I). The silatrane of formula (I) may be used as a secondary accelerator in rubber mixtures.

The invention relates to silane mixtures comprising a silane of the formula I(R)(R)Si&#x2014;R&#x2014;(S&#x2014;R)&#x2014;S&#x2014;R&#x2003;&#x2003;(I)and a silane of the formula II(R)(R)Si&#x2014;R&#x2014;(S&#x2014;R)&#x2014;S&#x2014;R&#x2014;Si(R)(R)&#x2003;&#x2003;(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.

Azocarbonyl-functionalized silanes of formula I(R)(R)Si&#x2014;R&#x2014;NH&#x2014;C(O)&#x2014;N&#x2550;N&#x2014;R&#x2003;&#x2003;(I)and methods for their production are provided. The silanes of formula (I) are useful in rubber mixtures to provide moldings having improved tear-resistance.

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Essen, Germany

Caren Roeben