Abstract: Modified silicas, having the following physicochemical parameters: a CTABmod of <200 m2/g, a BETMP of 50-500 m2/g, a CTABmod-BETMP of <0 m2/g, a carbon content of >0.5% by weight, a modemod from CPS particle size determination of >50 nm, a d75mod from CPS particle size determination of 20-150 nm, a Rmin from Hg pore size determination, pressurized of <10 nm, and a sulfur content of ?1.50% by weight.

Abstract: The invention relates to silane mixtures comprising a silane of the formula I (R1)y(R2)3-ySi—R3—(S—R4)n—Sx—R5??(I) and a silane of the formula II (R1)y(R2)3-ySi—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 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.

Abstract: The invention relates to silane mixtures comprising a silane of the formula I ((R1)y(R2)3-ySi—R3—SH??(I) and a silane of the formula II (R1)y(R2)3-ySi—R3—(S—R4)z—Si(R1)y(R2)3-y??(II) where the molar ratio of silane of the formula I to silane of the formula II is 20:80-85:15. The silane mixture according to the invention can be prepared by mixing the silanes of the formula I and silanes of the formula II.

Abstract: The invention relates to silane mixtures comprising a silane of the formula I (R1)y(R2)3-ySi—R3—(S—R4)n—Sx—R5??(I) and a silane of the formula II (R1)y(R2)3-ySi—R3—S—R4—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 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.

Abstract: 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.

Abstract: The invention relates to thioether silanes of the formula I (R1)x(R2)3-xSi—R3—S—C(CH2R4)y(R5)3-y ??(I), which are prepared by reacting the silane of the formula II (R1)x(R2)3-xSi—R3—SH ??(II) with an alkene of the formula III R4—HC?C(CH2R)y-1(R5)3-y ??(III). The thioether silanes can be used for production of rubber mixtures.

Abstract: The invention relates to rubber mixtures which comprise at least one rubber, at least one mercaptosilane of the general formula I R13Si—R2—S—R3 and at least one mixture of polysulfanes of the formula II R13Si—R2SxR2—SiR13. The rubber mixture is produced by mixing at least one rubber, at least one mercaptosilane of the general formula I and at least one mixture of polysulfanes of the formula II. The rubber mixture can be used to produce moulded articles.

Abstract: 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, (b) at least one silane of general formula (I), G-Si(—OR)3??(I), (c) at least one amine compound selected from the list triethanolamine, triisopropanolamine and [HO—CH(phenyl)CH2]3N and (d) at least one bifunctional silane. The rubber mixture is produced by mixing the rubber, silane of general formula (I), amine compound and bifunctional silane.

Abstract: The invention relates to silane mixtures comprising a silane of the formula I (R1)y(R2)3-ySi—R3—(S—R4)n—Sx—(R4—S)n—R3—Si(R1)y(R2)3-y??(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 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.

Abstract: The invention relates to silane mixtures comprising a silane of the formula I (R1)y(R2)3-ySi—R3—(S—R4)n—Sx—R5??(I) and a silane of the formula II (R1)y(R2)3-ySi—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 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.

Abstract: The invention relates to silane mixtures comprising a silane of the formula I (R1)y(R2)3-ySi—R3—(S—R4)n—Sx—R5??(I) and a silane of the formula II (R1)y(R2)3-ySi—R3—S—R4—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 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.

Abstract: 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(—O—CX1X2—CX1X3—)3N??(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.

Abstract: The invention relates to a plastics-covered mercaptosilane-wax mixture, where the plastic of the plastics covering is selected from the group of polypropylene, polyethylene, ethylene-vinyl acetate copolymer and mixtures of the abovementioned plastics with melting point from 70 to 170° C., and the mercaptosilane-wax mixture comprises at least one mercaptosilane of the general formula I and at least one wax with congealing point from 30 to 160° C. The plastics-covered mercaptosilane-wax mixture can be used in rubber mixtures.

Abstract: 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.

Abstract: 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.

Abstract: The invention relates to the use of silane-modified polybutadienes in rubber mixtures, in particular for improving the rolling resistance of diene rubber tires. In particular, the invention is directed to silane-modified polybutadienes in rubber mixtures, wherein the polybutadiene comprises the 1,3-butadiene-derived monomer units and wherein the proportion of A in the entirety of the 1,3-butadiene-derived monomer units present in the polybutadiene is from 10 to 60 mol %, and wherein the sum of the proportions of B and C in the entirety of the 1,3-butadiene-derived monomer units present in the polybutadiene is from 40 to 90 mol %.

Abstract: The invention relates to silane mixtures comprising a silane of the formula I (R1)y(R2)3-ySi—R3—(S—R4)n—Sx—(R4—S)n—R3—Si(R1)y(R2)3-y??(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 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.

Abstract: 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.

Abstract: 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, (b) at least one silane of general formula (I), G-Si(—OR)3??(I), (c) at least one amine compound selected from the list triethanolamine, triisopropanolamine and [HO—CH(phenyl)CH2]3N and (d) at least one bifunctional silane. The rubber mixture is produced by mixing the rubber, silane of general formula (I), amine compound and bifunctional silane.

Abstract: 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(—O—CX1X2—CX1X3—)3N??(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.