摘要:
Organosilicon compounds of the general formula I and/or II are produced by reacting silanes of the general formula III with alcohols of the general formula R′—OH, with elimination of R—OH, wherein R—OH may be continuously separated from the reaction mixture by distillation. The organosilicon compounds may be used in rubber mixtures. Compounds, such as rubbers, produced using such organosilicon compounds.
摘要:
Organosilicon compounds of the general formula I and/or II are produced by reacting silanes of the general formula III with alcohols of the general formula R′—OH, with elimination of R—OH, wherein R—OH may be continuously separated from the reaction mixture by distillation. The organosilicon compounds may be used in rubber mixtures. Compounds, such as rubbers, produced using such organosilicon compounds.
摘要:
Organosilicon compounds of the general formula I and/or II are produced by reacting silanes of the general formula III with alcohols of the general formula R′—OH, with elimination of R—OH, wherein R—OH may be continuously separated from the reaction mixture by distillation. The organosilicon compounds may be used in rubber mixtures. Compounds, such as rubbers, produced using such organosilicon compounds.
摘要:
Organosilicon compounds having the formula I and/or II wherein R1 is a mixture and the proportion of one component of the mixture is 10 to 50 mol %, are produced by reacting silanes having the formula III with mixtures of alcohols having the general formula R1—OH, with elimination of R—OH, and R—OH is continuously separated off from the reaction mixture by distillation. The organosilicon compounds can be used in rubber compounds.
摘要:
A composition containing organosilicon compounds having the formula I and/or II wherein R is ethyl, R1 is a mixture such that the proportion of one component of the mixture is 10 to 50 mol % and is the same or different C9-C30 branched or unbranched monovalent alkyl, and R2 is a branched or unbranched, saturated or unsaturated, aliphatic, aromatic or mixed aliphatic/aromatic divalent C1-C30 hydrocarbon is produced by reacting silanes having the formula III with mixtures of alcohols having the general formula R1—OH, with elimination of R—OH, and R—OH is continuously separated off from the reaction mixture by distillation. The organosilicon compounds can be used in rubber compounds.
摘要:
The invention relates to a process for preparing organosilanes of the general formula I by reacting (haloorganyl)alkoxysilane of the formula II with hydrous alkali metal hydrogensulphide, sulphur and alkali metal carbonate in alcohol, wherein the molar (haloorganyl)alkoxysilane of the formula II to alkali metal hydrogensulphide ratio is between 1:0.4 and 1:0.75, and the molar alkali metal hydrogensulphide to alkali metal carbonate ratio is between 1:0.5 and 1:1.5.
摘要:
The invention relates to a process for preparing organosilanes of the general formula I by reacting (haloorganyl)alkoxysilane of the formula II with hydrous alkali metal hydrogensulphide, sulphur and alkali metal carbonate in alcohol, wherein the molar (haloorganyl)alkoxysilane of the formula II to alkali metal hydrogensulphide ratio is between 1:0.4 and 1:0.75, and the molar alkali metal hydrogensulphide to alkali metal carbonate ratio is between 1:0.5 and 1:1.5.
摘要:
Process for the preparation of yellow bis(3-[triethoxysilyl]propyl)tetrasulfane having an iodine colour value of ≦10 mg of iodine/100 ml, in which process a small amount of chloropropyltrichlorosilane is added to neutral chloropropyltriethoxysilane and reaction with sodium polysulfide or with Na2S and sulfur in ethanol is then carried out.
摘要:
Process for the production of yellow bis(3-[trialkoxy-silyl]alkyl)polysulfanes with an iodine color index of ≦10 mg iodine/100 ml, in which an organic acid is added to neutral chloroalkyltrialkoxysilane and then reacted with sodium polysulfide (NPS) or sodium sulfide (Na2S) and sulfur or sodium polysulfide (NPS) and Na2S in alcohol.
摘要:
Process for the production of yellow bis(3-[triethoxysilyl]propyl)polysulfane with an average sulfur chain length of less than 4 and an iodine colour value of ≦10 mg iodine/100 ml, wherein neutral chloropropyltriethoxysilane is mixed with chloropropyltrichlorosilane and then reacted with sodium sulfide (Na2S) and sulfur, disodium tetrasulfide (Na2S4) and Na2S or disodium trisulfide (Na2S3) and Na2S in ethanol.