摘要:
An image forming member for electrophotographic copying machines, facsimile machines and printers which has semi-conductivity, non-tackifying property and high dielectric property and therefore has high charging and image-transferring efficiency, is excellent in feeding property and separability of papers, is free from paper jamming and can give an excellent image stably; a paint used for the member; a carbon fluoride composition used for the paint; a composite material of fine particles of carbon fluoride; and a process for preparing the composite material are provided. The carbon fluoride composition comprises carbon fluorides and at least one selected from the group consisting of resins and rubbers and has semi-conductivity, non-tackifying property and a specific dielectric constant of not less than 10 at 25° C. at 1 kHz.
摘要:
In the fluorinated cellulosic material obtained by a method for fluorinating a cellulosic material by reacting a cellulosic material selected from the group consisting of cellulose material and lignocellulose material with at least one fluorine-containing compound selected from the group consisting of fluorine-containing olefin compound, fluorine-containing acrylate compound and fluorine-containing methacrylate compound in an organic solvent in the presence of a catalyst, not only the surface but also the inside of the cellulose and/or lignocellulose materials are modified and high performance of the cellulose and/or lignocellulose materials is realized.
摘要:
A resin composition comprising 100 parts by weight of a thermoplastic resin or thermosetting resin and 0.1 to 5 parts by weight of at least one perfluoroalkyl group-containing polymer selected from the group consisting of a copolymer of a (meth)acrylic ester having a perfluoroalkyl group of 5-18 carbon atoms and a (meth)acrylic ester having a hydrophilic group, a homopolymer of an epoxy compound having a perfluoroalkyl group of 5-18 carbon atoms, and a copolymer of said epoxy compound and a monomer copolymerizable therewith has excellent stain resistance, and is suitable for producing molded products undergoing severe adhesion of dirt such as kitchen wares, bathroom wares and the like.
摘要:
A copolymer comprising chlorotrifluoroethylene and 0.01 to 1% by mole of perfluoro(alkyl vinyl ether) of the formula:R.sub.f --O--CF.dbd.CF.sub.2 (I)wherein R.sub.f is a C.sub.3 -C.sub.6 perfluoroalkyl group, and having a melt flow rate of 0.01 to 200.times.10.sup.-3 cc/sec., which has good mechanical strength and sufficiently high melting point.
摘要:
The present invention provides a carbon dioxide absorber capable of efficiently and stably removing carbon dioxide in a gas or solution. This carbon dioxide absorber contains an amine compound, a weakly acidic compound and water, the pKb value of the amine compound in an aqueous solution at 30° C. is 4.0 to 7.0, the pKa value of the weakly acidic compound in an aqueous solution at 30° C. is 7.0 to 10.0, and the weakly acidic compound is present in an amount within the range of 0.01 equivalents to 1.50 equivalents with respect to amino groups of the amine compound.
摘要:
A stain remover which comprises a copolymer made from as essential ingredients (a) a polymerizable monomer having a polyfluoroalkyl group with less than 8 carbon atoms and represented by the general formula H2C═CXCOO—Y—Rf and (b) a fluorine-free polymerizable monomer represented by the following general formula: H2C═CXCOO—(RO)n—X. The stain remover is effective in minimizing the amount of an organic solvent to be used. It imparts to a substrate the excellent property of removing stains therefrom and a satisfactory texture.
摘要翻译:一种去污剂,其包含由作为必要成分(a)具有碳原子数小于8的多氟烷基并由通式H 2 C = CXCOO-Y-Rf表示的可聚合单体的共聚物,(b)无氟聚合性 由以下通式表示的单体:H2C = CXCOO-(RO)nX。 去污剂在最小化所用有机溶剂的量方面是有效的。 它赋予基材从其中除去污渍和令人满意的质感的优异性能。
摘要:
A colloid solution that exhibits storage stability and pH stability, being useful as viral substitute particles for use in an integrity test for virus removal membrane. In particular, a metal colloid solution characterized in that it comprises metal particles or metal compound particles of 1 to 100 nm average diameter, a water soluble high-molecular-weight dispersant having an N group and water and/or a water soluble organic solvent, the metal colloid solution being stable for a prolonged period of time and being stable in at least pH values ranging from 4 to 11.
摘要:
The present invention discloses a method for producing a fluorine-containing alkyl (meth)acrylate represented by the following general formula (2): Rf—(CH2)k-[-A-(CH2)l—]m—OCOCR═CH2 (2) (wherein R is a hydrogen atom or a methyl group), characterized by reacting a fluorine-containing alcohol represented by the following general formula (1): Rf—(CH2)k-[-A-(CH2)l—]m—OH (1) (wherein Rf is a perfluoroalkyl group having 1 to 21 carbon atoms; A is S, SO or SO2; k is 0, 1 or 2; l is 1, 2 or 3; m is 0 or 1; however, a case of k=0 and m=0 is excluded), (meth)acrylic acid, and a sulfonic acid halide in the presence of a base containing at least one kind of tertiary amine.
摘要:
The invention relates to a carpet comprising a stainproof-treated textile, wherein the carpet has stainproof ratio (%) of at least 30% as defined below: Stainproof ratio (%)=100×(ΔENΔETn)/ΔEN ΔEN: Color difference after stainproof test of untreated carpet; ΔETn: Color difference after stainproof test of carpet treated by the stainproof agent; n: the number of cleaning; cleaning is conducted according to AATCC-138, n≦20.
摘要:
A colloid solution that exhibits storage stability and pH stability, being useful as viral substitute particles for use in an integrity test for virus removal membrane. In particular, a metal colloid solution characterized in that it comprises metal particles or metal compound particles of 1 to 100 nm average diameter, a water soluble high-molecular-weight dispersant having an N group and water and/or a water soluble organic solvent, the metal colloid solution being stable for a prolonged period of time and being stable in at least pH values ranging from 4 to 11.