摘要:
According to the present invention, a water absorbent material and materials to be sucked included in a water permeable bag type member form a water absorber. Thus, the water absorber is small both in weight and volume upon its transportation, and accordingly, the water absorber can be rapidly conveyed in large quantities without depending on a human power. The water absorber absorbs water upon its use to adequately satisfy a function of a form traceability for weight, volume and outline.
摘要:
An antimicrobial agent utilizes a resin having acrylonitrile and styrene and/or a conjugated diene as units. The antimicrobial agent includes a metal-salt-containing copolymer, and the metal-salt-containing copolymer is obtained by treating a copolymer containing acrylonitrile and at least one of styrene and a conjugated diene as units with an acid to thereby introduce acid radicals into the copolymer, and converting at least part of the acid radicals into a salt of at least one metal selected from among Ag, Cu, and Zn.
摘要:
The present invention relates to an aqueous electrolyte solution absorber including an aqueous electrolyte solution absorbent polymer obtained by introducing a hydrophilic polar group to a water insoluble polymer and a material to be sucked. The aqueous electrolyte solution absorber is produced by filling a water permeable bag type member with the aqueous electrolyte solution absorbent polymer obtained by introducing the hydrophilic polar group to the water insoluble polymer and a material to be sucked. The aqueous electrolyte solution absorber is inexpensive and has a high safety, a broad applicable range and a good handling property upon transportation or storage. Thus, a large amount of aqueous electrolyte solution absorbers can be rapidly conveyed at one time even to a risky place where persons are endangered to convey the absorbers.
摘要:
A system for recycling plastics, which enables a supply of recycled plastics having a stable quality required for the recycled products. A system for recycling a used plastic material as a resin material, which has (a) means for sorting used plastic materials by purpose of recycling, (b) means for crushing and melting said used plastic material sorted, (c) reviving means for regaining a desired property, and (d) means for measuring a physical property of a reclaimed plastic revived and indicating said measured physical property for quality assurance.
摘要:
A photovoltaic device, which is applied as a power supply of a versatile electric or electronic apparatus as a substitute for a standard cell, while attaining, by using flexible photoelectric converting devices, availability as the power supply of the electric or electronic apparatus normally requiring light energy such as sunlight, a photovoltaic device attachment using the photovoltaic device and the electric or electronic apparatus using the photovoltaic device attachment are disclosed. The photovoltaic device, the attachment thereof and the electric or electronic apparatus are characterized by having a core part and a photoelectric converting sheet having photoelectric converting devices, wherein a sheet part ranging from an inner end of an effective part of the photoelectric converting devices to an inner end of the photoelectric converting sheet and a sheet part ranging from an outer end of the effective part of the photoelectric converting devices to an outer end of the photoelectric converting sheet have the substantially same bending elasticity as the effective part of the photoelectric converting devices, an approximately cylindrical shape is presented as a whole in a condition where the photoelectric converting sheet is coiled around the core part, and detachable mounting to a housing part of a prescribed standard-shaped cell in the electric or electronic apparatus is possible.
摘要:
Sulfonated styrene polymer and/or its salt, a waste water treatment material and sludge dehydrating agent each containing the sulfonated styrene polymer and/or its salt as an effective component thereof are disclosed. The waste water treatment material is used such that the sulfonated styrene polymer and/or its salt, which has a viscosity of 10 mPa·S to 20,000 mPa·S at 25° C. after 0.01 N to 5 N of a neutral salt has been added to the 1 wt % water solution of the sulfonated styrene polymer and/or its salt, is added to each waste water so that waste water is purified. When a sludge dehydrating agent is required, the sulfonated styrene polymer and/or its salt having a weight average molecular weight of 1,100,000 or greater is combined with a cation polymer flocculating agent or an inorganic flocculating agent.
摘要:
A non-aqueous electrolyte comprises an aluminum halide and a quaternary ammonium halide dissolved in a non-aqueous solvent. A non-aqueous electrolytic cell is also described, which comprises an anode made od Al or its alloy, an cathode and the non-aqueous electrolyte provided between the anode and the cathode. The non-aqueous electrolyte is suitable for electrodeposition of aluminum from the electrolyte. Because aluminum is reversibly electrodeposited from and dissolved in the electrolyte, the electrolyte is usable for making secondary cells having good charge and discharge characteristics and a high energy density.
摘要:
A magnetic recording medium comprising a non-magnetic base layer and an magnetic layer provided thereon which comprises a magnetic powder and a binder cured with a curing agent, wherein said binder has the hydroxyl group and said curing agent is a mixed polyvalent isocyanate compound comprising oligomers made of a diisocyanate monomer, wherein 50% by weight or more of said mixed compound comprises said oligomers which have polymerization degrees of 7 or less. The curing agent improves curing properties of the binder, and the magnetic recording medium produced therewith is excellent in sliding durability.
摘要:
The present invention describes a self-responding laminated body in which an isotropic solution, wherein a polysaccharide derivative, dissolved in water, aggregates to demonstrate cloudy scattering due to a rise in temperature resulting in a decrease in optical transmittance, is sealed in a cell, of which at least a portion is transparent, that enables the aqueous solution to be viewed directly; wherein, the isotropic aqueous solution is a solution in which 100 parts by weight of a polysaccharide derivative, having a weight average molecular weight of roughly 10,000 to roughly 200,000, is dissolved in roughly 110 to roughly 2,000 parts by weight of a water-based medium composed of an amount of water that is roughly 25 to roughly 450 parts by weight with respect to 100 parts by weight of the polysaccharide derivative, and an amphipathic substance. This laminated body can be produced by sealing the isotropic aqueous solution in a cell having at least one transparent portion that enables the aqueous solution to be viewed directly, and can be advantageously used as a window.
摘要:
A developer for electrostatic electrophotography which comprises a composition of colorant particles, an electric charge supplying agent and a resin binder dispersed in a dispersion medium. The resin binder is a copolymer which has a polyoxyethylene units at side chains thereof, so that the interaction with the electric charge supplying agent is improved. The resultant developer ensures good resolution, gradation and fixing property and is suitable for wet development to give high-quality images. When the copolymer used as the resin binder has styrene units therein, its solubility in the dispersion medium is improved. The developer is either liquid or solid depending on the type of dispersion medium.