Continental Reifen Deutschland Gmbh

Evonik Operations Gmbh

David-Raphael Dauer

Andreas Jacob

Julian Strohmeier

Carla Recker

Norbert Mueller

Julia Schoeffel

Norbert Kendziorra

Kirsten Schwekendiek

Julia Schöffel

Nils Hojdis

Norbert Müller

Anna-Lena Dreier

Julien Davin

Gesa Tarantola

Christine Weber

Fabian Schax

Jan Flormann

Florian Matz

Jaana Jürges

Rebecca Graf

Jörg-August Becker

Jaana JÜRGES

Björn Bonse

Norbert MÜLLER

Nils Walter Hojdis

The invention relates to a compound, to a rubber mixture containing the compound, to a vehicle tire comprising the rubber mixture in at least one component, to a process for producing the compound and to the use of the compound as an aging stabilizer and/or antioxidant and/or antiozonant and/or dye. The compound according to the invention has the formula I).

Phenothiazine compound, its preparation and use in rubber blends and vehicle tires, as ageing protectant, antioxidant, antiozonant and colorant

The invention relates to a silane, to a rubber mixture containing the silane and to a vehicle tire comprising the rubber mixture in at least one component. The silane according to the invention has the following formula I)(R)Si—R—X-A-Y—[R—Y—]—R—S-G,  I)wherein according to the invention it has a spacer group between the silyl group and the S-G moiety, wherein the spacer group has an aromatic group A and at least one further aromatic group and/or an alkylene group and also the linking units X and Y, wherein the group X is selected from the groups —HNC(═O)—, —C(═O)NH—, —C(═O)O—, —OC(═O)—, —OC(═O)NH—, —HNC(═O)O—, —RNC(═O)NR—, —RNC(═NR)NR—, —RNC(═S)NR—, wherein at least one Rwithin the group X is a hydrogen atom, and wherein the groups Y are selected from the groups —HNC(═O)—, —C(═O)NH—, —C(═O)O—, —OC(═O)—, —OC(═O)NH—, —HNC(═O)O—, —RNC(═O)NR—, —RNC(═NR)NR—, —RNC(═S)NR—, wherein at least one Rwithin each group Y is a hydrogen atom, and wherein the radicals Rare selected from aromatic groups A and alkylene radicals having 1 to 20 carbon atoms, which may have cyclic, branched and/or aliphatically unsaturated groups; and wherein G is a hydrogen atom or a —C(═O)—Rgroup or a —SiRgroup, wherein Ris selected from linear, branched and cyclic C-C-alkyl groups, C-C-aryl groups, C-C-alkenyl groups and C-C-aralkyl groups, and wherein m can take the values 0 to 4. The rubber mixture according to the invention contains at least one silane according to the invention.

Silane, rubber mixture containing the silane, and vehicle tire having the rubber mixture in at least one component

The invention relates to a silane, to a rubber mixture comprising the silane and to a vehicle tire which comprises the rubber mixture in at least one component, and to a process for producing the silane. The silane of the invention has the following formula I)(R)Si&#x2014;R&#x2014;S&#x2014;R&#x2014;S&#x2014;R&#x2014;S&#x2014;X,&#x2003;&#x2003;I)which, according to the invention, comprises the &#x2014;R&#x2014;S&#x2014;R&#x2014;S&#x2014;R&#x2014; unit in the spacer group. The rubber mixture of the invention comprises at least one silane of the invention.

Silane, rubber mixture containing the silane, vehicle tire comprising the rubber mixture in at least one component, and process for producing the silane

The invention relates to a process for preparing a silane, to a process for modifying a silica with the silane, and to a modified silica. The process for preparing a silane of the formula I) comprises at least the following steps:

Method for producing a silane, method for modifying a silica with the silane, and modified silica

The invention relates to a silane, to a rubber mixture comprising the silane and to a vehicle tire comprising the rubber mixture in at least one component. The inventive silane has the following formula (I):(R)Si&#x2014;R&#x2014;X-A-Y&#x2014;[R&#x2014;Y&#x2014;]&#x2014;R&#x2014;S&#x2014;R&#x2014;[&#x2014;Y&#x2014;R]&#x2014;Y-A-X&#x2014;R&#x2014;Si(R),wherein according to the invention it has spacer groups between the respective silyl groups and the Smoiety, which have an aromatic group A and at least one alkylene group Rand also the linking units X and Y, wherein the groups X within a molecule may be identical or different from each other and are selected from the groups &#x2014;HNC(&#x2550;O)&#x2014;, &#x2014;C(&#x2550;O)NH&#x2014;, &#x2014;C(&#x2550;O)O&#x2014;, &#x2014;OC(&#x2550;O)&#x2014;, &#x2014;OC(&#x2550;O)NH&#x2014;, &#x2014;HNC(&#x2550;O)O&#x2014;, &#x2014;RNC(&#x2550;O)NR&#x2014;, &#x2014;RNC(&#x2550;NR)NR&#x2014;, &#x2014;RNC(&#x2550;S)NR&#x2014;, wherein at least one Rwithin each group X is a hydrogen atom; and wherein the groups Y within a molecule may be identical or different from each other and are selected from the groups &#x2014;HNC(&#x2550;O)&#x2014;, &#x2014;C(&#x2550;O)NH&#x2014;, &#x2014;C(&#x2550;O)O&#x2014;, &#x2014;OC(&#x2550;O)&#x2014;, &#x2014;OC(&#x2550;O)NH&#x2014;, &#x2014;HNC(&#x2550;O)O&#x2014;, &#x2014;RNC(&#x2550;O)NR&#x2014;, &#x2014;RNC(&#x2550;NR)NR&#x2014;, &#x2014;RNC(&#x2550;S)NR&#x2014;, wherein at least one Rwithin each group Y is a hydrogen atom, and wherein the radicals Rwithin a molecule may be identical or different and comprise alkylene radicals having 1 to 20 carbon atoms, which may have cyclic, branched and/or aliphatically unsaturated groups. The inventive rubber mixture comprises at least one inventive silane.

The invention relates to a sulfur-crosslinkable rubber mixture, to a vulcanizate thereof and to a vehicle tire. The sulfur-crosslinkable rubber mixture contains at least the following constituents:

Sulfur-crosslinkable rubber mixture, vulcanizate of the rubber mixture, and vehicle tire

The invention relates to a silane, to a rubber mixture comprising the silane and to a vehicle tire comprising the rubber mixture in at least one component. The inventive silane has the following formula I)(R)Si&#x2014;R&#x2014;X-A-Y-[A-Y-]-A-S-A-[-Y-A]Y-A-X&#x2014;R&#x2014;Si(R),wherein, according to the invention, the silane has spacer groups between the respective silyl groups and the Smoiety which have at least two aromatic groups A and the linking units X and Y, wherein the groups X within a molecule may be identical or different from each other and are selected from the groups &#x2014;HNC(&#x2550;O)&#x2014;, &#x2014;C(&#x2550;O)NH&#x2014;, &#x2014;C(&#x2550;O)O&#x2014;, &#x2014;OC(&#x2550;O)&#x2014;, &#x2014;OC(&#x2550;O)NH&#x2014;, The inventive rubber mixture comprises at least one inventive silane.

Silane, rubber mixture containing the silane and vehicle tyre having the rubber mixture in at least one component

Growing community of inventors

Hannover, Germany

David-Raphael Dauer