摘要:
Organosilicon compounds with a siloxane portion and groups of the general formula -OR′OCH=CHR˝ (i) linked via an Si-O-C bond, wherein R′ is a divalent hydrocarbon radical or a group -R°-(OR°) n ⁻, wherein R° is alkylene and n is from 1 to 12, R˝ is H or alkyl are useful in radiation curable compositions, in which they are mixed with an initiator. The compositions are particularly useful in UV radiation curable relase coatings.
摘要翻译:具有硅氧烷部分的有机硅化合物和通式为-OR min OCH = CHR sec(i)的基团通过Si-OC键连接,其中R min是二价烃基或基团-R - (OR DEG)n 其中R DEG为亚烷基且n为1至12,R sec为H或烷基可用于可辐射固化组合物,其中它们与引发剂混合。 该组合物特别适用于紫外线辐射固化相的涂料。
摘要:
Organosilicon compounds are disclosed which are multifunctional and possess utility as chain branching agents for aminofunctional polysiloxanes used in the softening of textiles and fabrics. The organosilicon compounds possess epoxy functionality and may have further alkyl functionality and/or polyalkylene oxide functionality.
摘要:
A duct is provided for receiving an optical fibre member by blowing. The duct is formed at least in part of a plastics material which is electrically conductive or has electrically conductive material such as carbon black held therein or has an electrically conductive material applied thereto. Preferably the duct has a radially inner layer defining an inside wall of the duct and at least one further layer positioned outwardly of the inner layer, the inner layer being formed of the plastics material which is electrically conductive or has electrically conductive material held therein or had an electrically conductive material applied thereto.
摘要:
A composition for treating acrylonitrile-based precursor fibres for the production of carbon fibres comprises a siloxane polymer characterised in that the siloxane polymer consists of 1 to 50 siloxane units of the general formula (a) 0 to 50 siloxane units of the general formula (b) and 10 to 900 siloxane units of the general formula (c) wherein R is hydrogen or a C₁₋₁₈ hydrocarbon group, A represents either certain amido groups containing organic groups or the reaction product of a silicon-bonded group -R'NH-R⁺ with one or more monoepoxides or lactones, B denotes a polyoxyalkylene group. Fibres produced by a method which includes the treatment with such compositions are superior in cosmetic appearance and strength.
摘要:
A duct is provided for receiving an optical fibre member by blowing. The duct is formed at least in part of a plastics material which is electrically conductive or has electrically conductive material such as carbon black held therein or has an electrically conductive material applied thereto. Preferably the duct has a radially inner layer defining an inside wall of the duct and at least one further layer positioned outwardly of the inner layer, the inner layer being formed of the plastics material which is electrically conductive or has electrically conductive material held therein or had an electrically conductive material applied thereto.
摘要:
A conditioning composition in the form of an emulsion comprises a crosslinked polydiorganosiloxane-polyoxyalkylene copolymer comprising siloxane units and at least one bridging unit wherein each R represents a monovalent hydrocarbon group, each R′ represents a polyoxyalkylene group linked to the silicon atom through a divalent hydrocarbon linkage, each X represents a divalent organic or organosiloxane group linked to the two silicon atoms of the or each bridging unit (iii) via a Si-C linkage, a has the value 0, 1 or 2 and b has the value 0, 1, 2 or 3. The use of this copolymer allows the formulation of improved conditioners and the formulation of clear shampoo conditioners.
摘要:
Liquid organosiloxane MTQ resins of the general formula [MxTyQz]n wherein M denotes a monofunctional, T a trifunctional and Q denotes a tetrafunctional siloxane unit is characterised by the fact that n has an average value of from 4 to 14, x+y is not less than z and not more than 2 z and x/y has a value of from 2/1 to 9/1. The resin molecule has at least one reactive substituent as defined and can be made by a method comprising (I) adding together a tetraalkoxysilane, a monoorganosilane and a triorganosilane or hexaorganodisiloxane in an acidified aqueous medium provided the tetraalkoxysilane is not added to the aqueous medium prior to the other components, (II) allowing the components to react together in said aqueous medium and, optionally (III) further reacting the finished resin with another compound having N atoms.
摘要:
A composition for treating acrylonitrile-based precursor fibres for the production of carbon fibres comprises a siloxane polymer characterised in that the siloxane polymer consists of 1 to 50 siloxane units of the general formula (a) 0 to 50 siloxane units of the general formula (b) and 10 to 900 siloxane units of the general formula (c) wherein R is hydrogen or a C₁₋₁₈ hydrocarbon group, A represents either certain amido groups containing organic groups or the reaction product of a silicon-bonded group -R'NH-R⁺ with one or more monoepoxides or lactones, B denotes a polyoxyalkylene group. Fibres produced by a method which includes the treatment with such compositions are superior in cosmetic appearance and strength.
摘要翻译:用于处理生产碳纤维的丙烯腈基前体纤维的组合物包含硅氧烷聚合物,其特征在于硅氧烷聚合物由通式(a)的1-50个硅氧烷单元和通式(b)的0-50个硅氧烷单元 )和通式(c)的10至900个硅氧烷单元,其中R为氢或C 1-18烃基,A代表某些含有有机基团的酰氨基或硅键合基团-R'NH- R +与一种或多种单环氧化物或内酯,B表示聚氧化烯基团。 通过包括用这种组合物处理的方法生产的纤维具有优异的美观外观和强度。