摘要:
A photovoltaic cell having a transparent first substrate (61) having semiconductor electrodes (7) supporting a photosensitizing dye, a second substrate (62) having counter electrodes (4) disposed so as to face the semiconductor electrodes (7), and an electrolyte layer disposed between the semiconductor electrode (7) and the counter electrode (4); the electrolyte layer (1) being sealed by a sealing member (2) lying between the first substrate (61) and the second substrate (62); the first substrate (61), the second substrate (62) and the sealing member (2) being formed of similar materials, and the portions of the first substrate and the second substrate that are in contact with the sealing member (2) being ultrasonically welded to the sealing member. This photovoltaic cell can maintain excellent cell performance for a long time.
摘要:
The invention provides a film-formable, chelate-forming resin having, per 1000 g of the resin, about 0.2 to about 3.5 moles of chelate-forming group represented by the formula [1], [2], [3] or [4]: ##STR1## wherein R.sup.1 and R.sup.2 are the same or different and each represents a hydrogen atom, a halogen atom, a nitro group, a nitroso group, a cyano group, a hydrocarbon group having up to 18 carbon atoms, or an alkoxyalkyl group having up to 12 carbon atoms, and a process for preparing the resin.The invention also provides a metal surface treating composition and a corrosion preventive coating composition both containing the above chelate-forming resin, and a chelate-forming resin composition comprising the resin and a crosslinking agent.The invention further provides a method for forming an electrophoretic coating, comprising the steps of bringing the metal surface treating composition into contact with a metal surface before electrodeposition on the metal surface to accomplish pretreatment, and conducting electrodeposition on the pretreated metal surface.
摘要:
According to one of the two aspects of the present invention, a metal surface treatment liquid having pH of less than 6 and containing oxytitanic ion and/or peroxytitanic ion therein is provided. The second aspect of the present invention is to provide a rust preventive paint, in which oxytitanic ion and/or peroxytitanic ion is(are) contained.
摘要:
An electromagnetic wave absorber comprising at least one of a unit film as a multilayered film comprising a resin layer (A) optionally containing a pigment and a layer (B) applied onto the resin layer (A), selected from a group consisting of a metal layer, an alloy layer and a partly oxidized layer of the metal layer or the alloy layer, and having a film thickness of 1 nm to 50 nm.
摘要:
A semiconductor layer (12) is caused to receive electromagnetic waves (1) to emit electrons; the emitted electrons are collected and supplied to an object to be protected against corrosion; and the electrons (3) are returned from the object to be protected against corrosion (16), to which the electrons (2) are supplied, to the semiconductor layer (12) via an electrolytic layer (14), to thereby cause an electric current to flow to the object to be protected against corrosion (16) to make a potential of the object to be protected against corrosion (16) low. In a corrosion protection structure (10), an electron supplier (13) is electrically connected to a object to be protected against corrosion (16), to thereby provide corrosion protection, the electron supplier (13) being made of a semiconductor layer (12) formed on a supporting member (11) that is capable of transmitting electromagnetic waves and has electrical conductivity. In addition, the electron supplier (13) is electrically connected to an object to be protected against corrosion (16) via an electrolytic layer (14) that is at least in contact with the semiconductor layer (12). According to the present invention, even if an object to be protected against corrosion is coated with a coating layer such as a rebar in concrete, it is possible to provide a corrosion protection method and a corrosion protection structure that can obtain a sufficient corrosion protection effect.
摘要:
This invention provides:(A) an anti-icing composition comprising a silicone resin which is at least one condensate selected from the group consisting of:(i) a condensate of an alkoxydimethylsiloxane compound represented by the formula ##STR1## wherein R.sub.1 l is a methyl group or an ethyl group, A is an oxygen atom, an ethylene group or a 1,3-propylene group, a is an integer of 5 to 150, b and e are different or the same and each represent an integer of 1 to 3, c is an integer of 3-b and d is an integer of 3-e,(ii) a condensate of the compound of the formula (I) and an alkoxysilane compound represented by the formula(R.sub.3)h--Si--(OR.sub.2)j (II) wherein R.sub.2 is a methyl group or an ethyl group, R.sub.3 is an alkyl group having 1 to 8 carbon atoms, h is an integer of 0 to 3 and j is an integer of 4-h,(iii) a condensate of the compound of the formula (I) and a dihydroxydimethylsiloxane compound represented by the formula ##STR2## wherein k is an integer of 10 to 200, and (iv) a condensate of the compound of the formula (I), the alkoxysilane compound of the formula (II) and the dihydroxydimethylsiloxane compound of the formula (III); and(B) a method of preventing icing which comprises applying to an article an aerosol comprising the foregoing anti-icing composition and a propellant.
摘要:
A water-repellant film-forming composition comprisinga mixture of(a) a (co)polymer of 5 to 100% by weight of a specific fluoroalkyl group-containing (meth)acrylic monomer and 0 to 95% by weight of an unsaturated monomer co-polymerizable with the fluoroalkyl group-containing (meth)acrylic monomer, and(b) a copolymer of 0.1 to 75% by weight of a specific silicon-containing polymerizable unsaturated monomer and 25 to 99.9% by weight of an unsaturated monomer copolymerizalbe with the silicon-containing polymerizable unsaturated monomer, andfine silica particles having an average particle diameter of not more than 5 micrometers, in specified amounts.
摘要:
Inorganic anticorrosive coating material which forms excellent coating film having several good properties of hardness, water resistance, anticorrosiveness, drying property and so forth. The coating material is prepared by the steps of: mixing an aqueous solution of water soluble silicate and one member or a mixture of vanadium and vanadium compounds; causing thus obtained mixture to react at the room temperature or by heating to form an aqueous solution of modified water soluble silicate; and dispersing anticorrosive metallic powder into said aqueous solution of modified water soluble silicate.
摘要:
An inorganic film-forming coating composition prepared by adding a basic compound (B) to a titanium-containing water based solution (A) obtained by reacting a hydrogen peroxide water with at least one titanium compound selected from the group consisting of a hydrolizable titanium compound, a low condensation product of the hydrolizable titanium compound, titanium hydroxide and a low condensation product of the titanium hydroxide; and an inorganic film-forming method by use of the coating composition.
摘要:
An inorganic film forming composition used for forming noncombustible coating films which have good adhesiveness and various other excellent properties. The composition comprises: colloidal silica dispersion, water-soluble organic amines, powdery aluminium compounds and powdery glasses and further may comprise water-soluble amino acids, thiourea, urea and water soluble salts of transition metals such as Cr, Mo, W, Fe, Co, Mn, V, etc. for forming a vehicle.