摘要:
Silane-modified oxidic or siliceous filler with a bead fraction below 75 μm of less than 15 wt. % and a median particle size distribution between of 150 to 500 μm, which is produced by the reaction of at least one microbeaded or microgranular, oxidic or siliceous filler in a compressed gas with at least one silane. The silane-modified oxidic or siliceous fillers are used in rubber compounds.
摘要:
Mercaptosilanes are disclosed of the formula I wherein R1 is an alkyl polyether group —O—(R5—O)m—R6. They are prepared by a procedure in which a silane of the formula II is subjected to a catalyzed reaction with an alkyl polyether R1—H, R7—OH being split off, the molar ratio of the alkyl polyethers R1—H to the silane of the formula II is at least 0.5 and R7—OH is separated off from the reaction mixture continuously or discontinuously. They can be used in shaped articles.
摘要:
Organosilicon compounds of the general formula I are produced by catalytically reacting silanes of the general formula II with alcohols of the general formula R′—OH, with the elimination of RIVOH, wherein the molar ratio of R—OH to RIVOH— groups is at least 1 and RIVOH is removed continuously or discontinuously from the reaction mixture. The organosilicon compounds may be used as coupling agents in filler-reinforced rubber mixtures.
摘要:
The invention is directed to rubber mixtures comprising rubber, fillers, optionally further rubber auxiliaries and at least one organosilane of the general formula I: R1R2R3SiR4—SH (I) wherein: R1 is methyl or ethyl, R2 is methoxy, ethoxy or —O—(Y—O)m—X where Y=a branched or unbranched, saturated or unsaturated divalent hydrocarbon group, X is a C1- to C9-alkyl group and m=1-40, R3 is methyl, ethyl or R2, and R4 is a branched or unbranched, saturated or unsaturated, aliphatic, aromatic or mixed aliphatic/aromatic divalent C1-C12 hydrocarbon group. The rubber mixtures according to the invention are prepared by mixing rubber, filler, optionally further rubber auxiliaries and at least one organosilane of the general formula I. The rubber mixtures can be used for the production of shaped articles.
摘要翻译:本发明涉及包含橡胶,填料,任选的其它橡胶助剂和至少一种通式I的有机硅烷的橡胶混合物:<?in-line-formula description =“In-Line Formulas”end =“lead”→> R S(1) u> S u> S u> S u> S < 其中:R 1是甲基或乙基,R 2是甲氧基,乙氧基或-O-(YO)
摘要:
The invention is directed to rubber mixtures comprising rubber, fillers, optionally further rubber auxiliaries and at least one organosilane of the general formula I: R1R2R3SiR4—SH (I) wherein: R1 is methyl or ethyl, R2 is methoxy, ethoxy or —O—(Y—O)m—X where Y=a branched or unbranched, saturated or unsaturated divalent hydrocarbon group, X is a C1- to C9-alkyl group and m=1-40, R3 is methyl, ethyl or R2, and R4 is a branched or unbranched, saturated or unsaturated, aliphatic, aromatic or mixed aliphatic/aromatic divalent C1-C12 hydrocarbon group. The rubber mixtures according to the invention are prepared by mixing rubber, filler, optionally further rubber auxiliaries and at least one organosilane of the general formula I. The rubber mixtures can be used for the production of shaped articles.
摘要翻译:本发明涉及包含橡胶,填料,任选的其它橡胶助剂和至少一种通式I的有机硅烷的橡胶混合物:<?in-line-formula description =“In-Line Formulas”end =“lead”→> R S(1) u> S u> S u> S u> S < 其中:R 1是甲基或乙基,R 2是甲氧基,乙氧基或-O-(YO)
摘要:
Mercaptosilanes are disclosed of the formula I wherein R1 is an alkyl polyether group —O—(R5—O)m—R6. They are prepared by a procedure in which a silane of the formula II is subjected to a catalyzed reaction with an alkyl polyether R1—H, R7—OH being split off, the molar ratio of the alkyl polyethers R1—H to the silane of the formula II is at least 0.5 and R7—OH is separated off from the reaction mixture continuously or discontinuously. They can be used in shaped articles.
摘要:
Mixtures of silicon-containing coupling reagents comprising (mercaptoorganyl)alkylpolyethersilanes containing silanol groups and (mercaptoorganyl)alkylpolyethersilanes free of silanol groups in a weight ratio of from 5:95 to 95:5. The mixtures can be prepared by transesterification and hydrolysis. The mixtures can be used in rubber mixtures.
摘要:
Rubber mixtures, including at least one rubber, a filler, an organosilicon compound of the formula I one rubber accelerator and one co-accelerator. The rubber mixtures are prepared by mixing at least one rubber, a filler, an organosilicon compound of the formula I, one rubber accelerator and one co-accelerator. The rubber mixtures can be used for production of mouldings. Also disclosed is a process for preparation of the organosilicon compound of the formula I via transesterification.
摘要:
The invention relates to a process for preparing silicon-containing azodicarbamides of the general formula (I) (R1)3-a(R2)aSi—RI—NH—C(O)—N═N—C(O)—NH—RI—Si(R1)3-a(R2)a (I), by reaction of azobiscarboxy compounds of the general formula II R3—X1—C(O)—N═N—C(O)—X1—R4 (II) with aminosilanes of the general formula III (R1)3-a(R2)aSi—RI—NH2 (III).