摘要:
A polyfluoro-1-alkene represented by the general formula: CF3(CF2)nCH2(CF2)mCH═CH2 [I], wherein n is an integer of 0 to 5, and m is an integer of 1 to 7, is produced by reacting a polyfluoroalkyl iodide represented by the general formula: CF3(CF2)nCH2(CF2)m(CH2CH2)I [II], wherein n is an integer of 0 to 5, and m is an integer of 1 to 7, with an inorganic basic compound in the presence of a phase transfer catalyst. Alternatively, the polyfluoro-1-alkene is produced by reacting the polyfluoroalkyl iodide [II] with a nitrogen-containing organic basic compound, and is obtained product [I] as one fraction thereof. By the copolymerization of the polyfluoro-1-alkene with other fluorinated olefin monomers, a fluorine-containing copolymer having excellent light transmittance in the visible light range is formed.
摘要:
A polyfluoro-1-alkene represented by the general formula: CF3(CF2)nCH2(CF2)mCH═CH2[I], wherein n is an integer of 0 to 5, and m is an integer of 1 to 7, is produced by reacting a polyfluoroalkyl iodide represented by the general formula: CF3(CF2)nCH2(CF2)m(CH2CH2)I [II], wherein n is an integer of 0 to 5, and m is an integer of 1 to 7, with an inorganic basic compound in the presence of a phase transfer catalyst. Alternatively, the polyfluoro-1-alkene is produced by reacting the polyfluoroalkyl iodide [II] with a nitrogen-containing organic basic compound, and is obtained product [I] as one fraction thereof. By the copolymerization of the polyfluoro-1-alkene with other fluorinated olefin monomers, a fluorine-containing copolymer having excellent light transmittance in the visible light range is formed.
摘要:
A mixture of polyfluoroalkadienes represented by the general formulae: CF3(CF2)nCF═CH(CF2)m+1CH═CH2 [Ia] and CF3(CF2)n+1CH═CF(CF2)mCH═CH2 [Ib], wherein n is an integer of 0 to 5, and m is an integer of 0 to 6, is obtained as a mixture fraction of products [Ia] and [Ib] by reacting a polyfluoroalkyl iodide represented by the general formula: CF3(CF2)n+1CH2(CF2)m+1(CH2CH2)I [II], with an organic basic compound. The polyfluoroalkadiene mixture is compounds having a perfluoroalkyl group in which the number of successive CF2 groups is 5 or less, and is effectively used as a copolymerizable monomer in the production of resinous or elastomeric fluorine-containing copolymers, which are used as active ingredients of surface-treating agents, such as water- and oil-repellents and mold-release agents.
摘要:
A mixture of polyfluoroalkadienes represented by the general formulae: CF3(CF2)nCF═CH(CF2)m+1CH═CH2 [Ia] and CF3(CF2)n+1CH═CF(CF2)mCH═CH2 [Ib], wherein n is an integer of 0 to 5, and m is an integer of 0 to 6, is obtained as a mixture fraction of products [Ia] and [Ib] by reacting a polyfluoroalkyl iodide represented by the general formula: CF3(CF2)n+1CH2(CF2)m+1(CH2CH2)I [II], with an organic basic compound. The polyfluoroalkadiene mixture is compounds having a perfluoroalkyl group in which the number of successive CF2 groups is 5 or less, and is effectively used as a copolymerizable monomer in the production of resinous or elastomeric fluorine-containing copolymers, which are used as active ingredients of surface-treating agents, such as water- and oil-repellents and mold-release agents.
摘要:
Provided is a fluorine-containing elastomer blend comprising 5 to 60 wt. % of a high-molecular-weight, fluorine-containing elastomer having a number average molecular weight of 3,000,000 or more, 20 to 80 wt. % of a medium-molecular-weight, fluorine-containing elastomer having a number average molecular weight of 100,000 to 1,000,000, and 10 to 50 wt. % of a low-molecular-weight, fluorine-containing elastomer having a number average molecular weight of 7,000 to 13,000; the number average molecular weight Mn of each fluorine-containing elastomer being measured by liquid chromatography using tetrahydrofuran as a developing solvent at a polymer concentration of 0.5 wt. % at a measurement temperature of 35° C. The fluorine-containing elastomer blend can achieve low hardness and low modulus while improving roll processability.
摘要:
Example embodiments relate to detection of a held touch on a touch-sensitive display. In some embodiments, a touch held at a given position of a touch-sensitive display is detected. Movement of the touch is then tracked while the touch remains held on the touch-sensitive display. Finally, upon release of the held touch, an action is performed on a user interface object located at a position of the release of the held touch.
摘要:
Disclosed are: a resin composition for pattern formation, which enables the stable formation of a pattern at a level of the wavelength of light; a method for forming a pattern having a sea-island structure using the composition; and a process for producing a light-emitting element that can achieve high luminous efficiency properties. The resin composition for pattern formation comprises: (a) a specific block copolymer containing an aromatic ring-containing polymer and a poly(meth)acrylate as block moieties; (b) a homopolymer of a specific aromatic ring-containing polymer; and (c) a homopolymer of a specific poly(meth)acrylate, wherein the ratio of the total amount of the aromatic ring-containing homopolymer (b) and the poly(meth)acrylate homopolymer (c) relative to the entire resin composition is 0% by weight to 90% by weight, and the total amount of an aromatic ring-containing polymer moiety contained in the block copolymer (a) as a block moiety and the aromatic ring-containing homopolymer (b) relative to the entire resin composition is 10% by weight to 60% by weight.
摘要:
The present invention relates to an electrophotographic photosensitive member 2 including a conductive body 20, a photoconductive layer 22 formed on the conductive body 20 using amorphous silicon, and a surface layer 23 formed on the photoconductive layer using amorphous silicon. The present invention further relates to an image forming apparatus provided with the electrophotographic photosensitive member 2. The photoconductive layer 22 has a mean roughness Ra of not more than 10 nm per 10 μm square. The surface layer 23, without undergoing grinding process, has a mean roughness Ra of not more than 10 nm per 10 μm square.
摘要翻译:本发明涉及一种电子照相感光构件2,其包括导电体20,使用非晶硅形成在导电体20上的光电导层22以及使用非晶硅形成在光电导层上的表面层23。 本发明还涉及一种设置有电子照相感光构件2的图像形成装置。光电导层22的平均粗糙度Ra每10平方米不超过10nm。 表面层23,不进行研磨处理,其平均粗糙度Ra为10m / m 2的平方。
摘要:
The present invention relates to a hermetic structure having a flat cable. Liquid rubber is charged into a gap to be sealed, the charged liquid rubber is subjected to a physical action at the normal temperature and under the normal pressure, and the liquid rubber is cured to form a seal. By forming the seal in this manner, the limitation of heat resistance and pressure resistance is moderated, the flexibility of selection of materials for various constituent members is enhanced, and the structure is simplified.
摘要:
On a frictional engage surface of one of inner and outer clutch plates constructing a wet-type multi-disk clutch, a plurality of convex ridges are formed at an infinitesimal predetermined interval distance. Lubricating oil is kept between the convex ridges, so that the wedge operation in oil can be reduced, whereby the torque transfer characteristic can be improved. Further, a height of the convex ridge is set equal to or more than 1 .mu.m and the interval distance of the convex ridge is set equal to or less than 600 .mu.m, preferably.In the configuration of the clutch plate, it is made of steel as a substrate. Further, a nitrogen diffusion layer, a nitrided layer and an oxidation tunic is formed on said nitrided layer are formed on the substrate in its order therefrom.