摘要:
A method for producing an alkenyl or alkynyl-containing organosilicon precursor composition, the method comprising the steps of distilling at least once a composition comprising an alkenyl or alkynyl-containing organosilicon compound having the formula R n SiR 1 4-n wherein R is selected a linear or branched C 2 to C 6 alkenyl group, a linear or branched C 2 to C 6 alkynyl group; R 1 is selected from hydrogen, a linear or branched C 1 to C 10 alkyl group, and a C 3 to C 10 cyclic alkyl group; and n is a number selected from 1 to 4, wherein a distilled alkenyl or alkynyl-containing organosilicon precursor composition is produced after distilling; and packaging the distilled alkenyl or alkynyl-containing organosilicon precursor composition in a container, wherein the container permits transmission into the container of no more than 10% of ultraviolet and visible light having a wavelength of between 290 nm to 450 nm.
摘要:
The present invention relates to a process for producing a low-volatile-matter organosilicon linear body. The process comprises: removing chlorine ions from a dimethyl dichlorosilane hydrolysate, and reducing volatile matters at 180-280°C and -0.0955 to -0.0998 MPa. The obtained organosilicon linear body has volatile matters of less than 0.5%, a viscosity of 50-150 mm2/s and a content of chloride ions of lower than 1 ppm. The process can be widely applied to the production of organosilicon subsequent products such as low-ring-body-content 107 glue, low-ring-body-content amino silicone oil, low-ring-body-content methyl silicone oil, and low-ring-body-content vinyl silicone oil, and can meet requirements of the European Union on content limitations of ring bodies in a polymer.
摘要:
The present invention provides processes for preparing silanylamines, such as disilanylamines and polysilanylamines, and compositions comprising the silanylamines. In one embodiment, the present invention provides processes for preparing a silanylamine compound, the processes comprising reacting a starting compound of general formula RR1N—(SixH2x+1) with an amine compound of general formula R2R3NH to produce the silanylamine compound of general formula R2mR3n-N(SixH2+1)3-m-n.
摘要:
The invention relates to a method for the separation by distillation of a three- or multi-component mixture, containing at least one light volatile, at least one medium volatile and at least one heavy volatile, wherein the three- or multi-component mixture is fed to a first column, by means of which the at least one heavy volatile is separated off as a bottom fraction and a top fraction is fed to a second column, wherein, in the second column, the at least one medium volatile is separated off via a side outlet and the at least one light volatile is separated off as a top fraction, and a bottom outlet from the second column is fed to the first column again as recyclate, wherein both distillation columns have vertical partitions. The invention further relates to a corresponding apparatus.
摘要:
The present invention relates to a method for separating organohalosilanes. The method includes introducing a mixture including at least a first organohalosilane and a second organohalosilane onto a chromatographic bed including a stationary phase. The method also includes passing a liquid mobile phase through the chromatographic bed to produce an eluate including at least one fraction enriched in the first organohalosilane and at least one fraction enriched in the second organohalosilane.