Please select the most similar patent number from A, B, C and D. Which number is?
A composition and a laundry tablet for cleaning clothes and a preparation method therefor. The composition and the laundry tablet are composed of the following components: water, polyvinyl alcohol (PVA) or a modified polyvinyl alcohol (modified PVA), polyvinyl pyrrolidone (PVP) or a modified polyvinyl pyrrolidone (modified PVP) mixture, a potassium fatty alcohol sulfate, a sodium fatty alcohol sulfate, lauryl polyoxyethylene ether, citric acid, sodium carbonate, sodium hydroxide, a preservative, a plasticizer, a fatty acid potassium salt, and a fragrance. The composition for cleaning clothes has stronger detergency and better solubility. The invention ensures that clean laundry is softer and achieves an improvement of overall product performance.
A: A spray type liquid bandage, comprising the following components in parts by weight: 20-30 parts of ethyl cellulose, 6-10 parts of carboxymethyl chitosan, 3-5 parts of a polyvinylpyrrolidone-vinyl acetate copolymer, 15-25 parts of ethanol, 20-25 parts of ethyl acetate, 25-40 parts of diacetone alcohol, 5-15 parts of isooctane, 5-15 parts of n-hexane, 5-15 parts of n-heptane, 1-5 parts of sodium dodecyl sulfate, 1-5 parts of Tween, 0.5-1.5 parts of glycerol, and 25-35 parts of distilled water. The ethyl cellulose, carboxymethyl chitosan and polyvinylpyrrolidone-vinyl acetate copolymer are used in combination as film-forming materials, and volatile solvent combinations and volatile aid combinations are used, and sodium dodecyl sulfate and Tween are used as surface tension modifiers, so that the formed film has good flexibility and elasticity, low bonding, low surface tension and good moisture retention.
B: A cleaning liquid for washing a plate catalyst, comprising 5-10 wt% of dodecyl benzene sulfonic acid, 5-10 wt% of fatty alcohol polyoxyethylene ether sodium sulfate, 4-12 wt% of coconut oil fatty acid monoethanolamide, and 3-25 wt% of an auxiliary agent. The preparation method therefor comprises mixing and stirring dodecyl benzene sulfonic acid, fatty alcohol polyoxyethylene ether sodium sulfate, coconut oil fatty acid monoethanolamide, and the auxiliary agent to form the cleaning liquid.
C: The present invention discloses a preparation method of a sustainable hydrophilic modified polyvinylidene fluoride hollow membrane, comprising the following steps: (1) a core solution and a polyvinylidene fluoride casting solution are co-extruded from an annular spinneret of a hollow fiber spinning apparatus to obtain nascent membrane filaments, wherein the core solution is formed by reacting ammonium persulfate, polyvinylpyrrolidone and RO water; (2) at 40-50ºC, the nascent membrane filaments obtained in step (1) are spun by means of a dry-wet spinning process to form a hollow fiber membrane, wherein a coagulating bath is water or a mixture of water and a solvent, and by controlling the flow rate of the core solution, and the temperature and composition of the coagulating bath a hollow fiber membrane with different internal and external structures can be obtained; and (3) a membrane filament moisturizing process: the hollow fiber membrane obtained in step (2) is immersed in pure water at 15-40ºC for at least 48 hours, and is then placed in a mixed solution of water and glycerin and immersed for at least 12 hours, followed by drying to obtain the sustainable hydrophilic modified polyvinylidene fluoride hollow membrane.
D: Disclosed is a colistin sulphate premix, which is composed of the following components in percent content by weight: 3%-8% of colistin sulphate, 2%-6% of a binder and the balance being a carrier, wherein the binder is composed of polyvinylpyrrolidone and carrageenan, and the mass ratio of the polyvinylpyrrolidone to the carrageenan is (1 - 3) : 1.
Answer: B