摘要:
A method for purifying and concentrating organic matters by employing an amphoteric ion-exchange membrane which is made of a ternary block copolymer consisting of a macromolecule poly A.sup.- having cation-exchange group, a macromolecule poly B.sup.+ having anion-exchange group and a macromolecule poly C having no ion-exchange group and allows sodium chloride to permeate at a concentration not lower than 100% of that in the starting aqueous solution when a pressure of 50 kg/cm.sup.2 is given to the starting aqueous solution of sodium chloride of 0.01 g/dl and by allowing inorganic salts to permeate selectively from an aqueous solution of the organic compounds containing the inorganic salts with giving an increased pressure thereto.
摘要翻译:通过使用由具有阳离子交换基团的大分子聚A,具有阴离子交换基团的高分子量聚B +和高分子组成的三元嵌段共聚物构成的两性离子交换膜来提纯和浓缩有机物质的方法 没有离子交换基团的聚C,当起始水溶液的浓度不低于100%的浓度时,氯化钠以0.01g / cm 2的氯化钠水溶液施加50kg / cm 2的压力 / dl,并且通过允许无机盐从含有无机盐的有机化合物的水溶液中选择性地渗透,同时增加其压力。
摘要:
This is a method for separating or purifying an amino acid from a mixture including other substance such as an inorganic salt other than the amino acid and/or a mutual mixture of amino acids including the amino acid by means of piezo-dialysis employing an amphoteric ion exchange membrane. This membrane is made from a ternary block copolymer having a molecular structure of straight chain in which first macro-molecule with a cation exchange group, second macromolecule with an anion exchange group and third macromolecule without ion exchange group are linked together.
摘要:
The invention relates to improved bitumen compositions including: (A) 100 parts of bitumen (B) 0.1 to 10 parts of a copolymer of an alpha-olefin, of an unsaturated epoxide and of an ester of unsaturated carboxylic acid (C) 0.1 to 10 parts of a copolymer of an alpha-olefin and of an ester of unsaturated carboxylic acid, (D) 0 to 10 parts of a thermoplastic elastomer (E) 0 to 10 parts of a polymer which is reactive with (B) (F) 0 to 10 parts of an ethylene/vinyl acetate copolymer. These bitumens are stable when stored and resist rutting.
摘要:
A method for modifying the surface of a polymer article, which comprises applying to the polymer article a macromer having a radical polymerizable double bond, followed by treatment with non-polymerizable plasma.
摘要:
Purpose: the purpose of the present invention is to offer resin compositions which have antimicrobial/fungistatic properties which show outstanding dispersion and outstandingly durable performance. Constitution: thermoplastic resin compositions characterized in that an antimicrobial/fungistatic agent, and particularly an inorganic antimicrobial/fungistatic agent, is compounded with a copolymer containing a polyether chain as a constituent unit, such as a polyether/polyamide copolymer, a polyether/polyester copolymer or a polyether urethane, for example, at 0.05-20 wt. %, and thermoplastic resin compositions which comprise a thermoplastic resin, an antimicrobial/fungistatic agent and a copolymer having a polyether chain as a constituent unit.
摘要:
A structure for connecting electrodes of a motor unit and a motor driver unit which is a power circuit for the motor unit in an electric power drive vehicle, so that the motor unit and the motor driver unit are electrically connected to each other, includes: electrode terminals to which a coil of the motor unit is connected and which are provided with fixing nuts; substantially L-shaped electrode plates each formed at one end with a terminal portion connected to the inverter circuit and at the other end with a contact portion to which the electrode terminal is connected, the contact portion being formed with an insertion hole; L-shaped resin electrode bases for attaching the electrodes plates to a metallic frame under an insulated condition, each of the electrode bases including an elongated hole for attaching a bolt to be engaged with the insertion hole of the electrode plate and a guide groove for preventing the electrode plate from rotation; and bolts each extending through the elongated hole of the electrode base so as to connect the electrode terminal to the electrode plate.
摘要:
A method and apparatus for separating and analyzing using liquid chromatography, wherein an eluate from a chromatographic column is treated by dialysis using an amphoteric ion exchange membrane.
摘要:
To improve the handlability and safety of a perchlorate solution used as a stabilizer for chlorine-containing resins.This invention provides a perchlorate solution of improved handlability and safety and a method for heat-stabilizing chlorine-containing resin compositions by adding (a) 0.004 to 10 parts by weight of a perchlorate solution containing 1 to 60% by weight of perchlorate, 5 to 50% by weight of water-soluble organic solvent and 20 to 94% by weight of water, and (b) 0.001 to 10 parts by weight of at least one silicate compound represented by the general formula (I) to 100 parts by weight of a chlorine-containing resin: M(O)a nSiO2mH2O (I) in which M is at least one metal selected from alkaline earth metals and aluminum, a is 1 when M is an alkaline earth metal and 3/2 where M is aluminum, n is from 1 to 5, and m is any positive integer.
摘要:
Polyester injection-moulded parts based on a polyester (A) and on a copolymer (B) of ethylene and of an unsaturated epoxy, such that weight % (B)×MFI (A+B)/MFI(A) is greater than 3 and in this expression: MFI (A+B) denotes the melt flow index of the modified polyester, that is to say the blend of (A) and (B) and of any fillers; MFI (A) denotes the melt flow index of the polyester (A) and of any fillers (without (B)); and weight % (B) denotes the percentage by weight of (B) in the blend of (A) and (B) and of any fillers.
摘要:
The present invention relates to electrodes consisting of an electrode activator and a metallic collector whose adhesion between the activator and the collector is improved. The electrode activator's binder is made of a fluoroplastic grafted with at least one acrylic polymer.