Abstract: A photovoltaic thermal collector is provided with: glasses disposed on both a sunlight receiving surface side and an opposite surface side thereto; a hot-water producing portion and a power generating portion. An olefinic rubber sealing member (A) is disposed on at least one surface side of a power generating element of the power generating portion, and an olefinic rubber sheet (B) including carbon black is disposed on an opposite surface side thereto. In addition, a resin pipe as a channel of the hot-water producing portion is made of cross-linked polyethylene or polybutene; the resin pipe is sandwiched in the olefinic rubber sheet (B); and the olefinic rubber sheet (B) is further disposed in a side portion of the resin pipe and in a gap between one resin pipe and another resin pipe.

Abstract: In a super straight solar cell module structure, a solar cell module that remains delamination-free over an ultralong period of time can be provided by using a composite filling material obtained by sandwiching, by an EVA sealing material with a melting point of 55° C. or higher and 75° C. or lower, a cyclic olefin-based copolymer film having a glass transition temperature ranging from 70° C. to 80° C. and a thickness ranging from 20 ?m to 50 ?m.

Abstract: The present invention provides a rubber compound used in a hot-water producing portion for a photovoltaic thermal collector that produces hot water on a back-surface side using heat produced through power generation on a front-surface side of a solar panel. There is provided a rubber compound: by using the rubber compound, it is possible to simultaneously form a power generating portion and a hot-water producing portion in a regular photovoltaic module forming line without cracking of a crystalline silicon cell used in the solar panel and without crushing of a channel of a resin pipe used in the hot-water producing portion.

Abstract: A photovoltaic thermal collector is provided with: glasses disposed on both a sunlight receiving surface side and an opposite surface side thereto; a hot-water producing portion and a power generating portion. An olefinic rubber sealing member (A) is disposed on at least one surface side of a power generating element of the power generating portion, and an olefinic rubber sheet (B) including carbon black is disposed on an opposite surface side thereto. In addition, a resin pipe as a channel of the hot-water producing portion is made of cross-linked polyethylene or polybutene; the resin pipe is sandwiched in the olefinic rubber sheet (B); and the olefinic rubber sheet (B) is further disposed in a side portion of the resin pipe and in a gap between one resin pipe and another resin pipe.

Abstract: The present invention provides a rubber compound used in a hot-water producing portion for a photovoltaic thermal collector that produces hot water on a back-surface side using heat produced through power generation on a front-surface side of a solar panel. There is provided a rubber compound: by using the rubber compound, it is possible to simultaneously form a power generating portion and a hot-water producing portion in a regular photovoltaic module forming line without cracking of a crystalline silicon cell used in the solar panel and without crushing of a channel of a resin pipe used in the hot-water producing portion.

Abstract: The performances and durability of a diaphragm sheet of a solar cell laminator are enhanced, and a favorable lamination work is stably performed over a long period of time. In addition, by stably performing sufficient and uniform lamination over a long period of time, a high-quality module is stably manufactured over a long period of time. A solar cell module is manufactured by using a diaphragm sheet formed of a composition containing an ethylene-propylene-diene rubber (EPDM), which is low in creep deformation and high in durability against an organic peroxide and a silane coupling agent.

Abstract: The performances and durability of a diaphragm sheet of a solar cell laminator are enhanced, and a favorable lamination work is stably performed over a long period of time. In addition, by stably performing sufficient and uniform lamination over a long period of time, a high-quality module is stably manufactured over a long period of time. A solar cell module is manufactured by using a diaphragm sheet formed of a composition containing an ethylene-propylene-diene rubber (EPDM), which is low in creep deformation and high in durability against an organic peroxide and a silane coupling agent.

Abstract: The performances and durability of a diaphragm sheet of a solar cell laminator are enhanced, and a favorable lamination work is stably performed over a long period of time. In addition, by stably performing sufficient and uniform lamination over a long period of time, a high-quality module is stably manufactured over a long period of time. A solar cell module is manufactured by using a diaphragm sheet formed of a composition containing an ethylene-propylene-diene rubber (EPDM), which is low in creep deformation and high in durability against an organic peroxide and a silane coupling agent.

Abstract: The application provides a process for preparing a thermoplastic elastomer composition (F) for injection molding, comprising dynamically heat-treating a thermoplastic elastomer composition (D), which comprises 95 to 5 parts by weight of an ethylene/?-olefin-based copolymer rubber (a), 5 to 95 parts by weight of a propylene/?-olefin random copolymer (b-1) (total of the components (a) and (b-1): 100 parts by weight), and 0 to 200 parts by weight of a softener (c), in the presence of an organic peroxide, wherein a crystallization nucleating agent (e) for olefin-based plastics is added in an amount of 0.01 to 5 parts by weight based on 100 parts by weight of the total of the components (a) and (b-1) before or after the dynamic heat treatment.

Abstract: Disclosed is a novel packing for a solar cell module laminator. An object is to solve the problem of durability involved in conventional packings and to stably manufacture a high-quality module over a long period of time. The packing is composed of an olefin based rubber crosslinked with an organic peroxide and allowed to have a Shore A hardness, a dimensional stability, and a compression set each falling within a certain range. The olefin based rubber is suitably an EPDM rubber and/or an EPM rubber and is made possible for achieving extrusion molding.

Abstract: Disclosed is a novel diaphragm sheet for a solar cell module laminator. The durability is tremendously enhanced as compared with the conventional products, and making a solar cell module laminator maintenance-free over a long period of time is realized. The diaphragm sheet is composed of an olefin based rubber and has a Shore A hardness of from 35 to 80 and a thickness of from 2.0 to 6.0 mm. The olefin based rubber is, for example, an ethylene-propylene-diene rubber (EPDM) and/or an ethylene/propylene rubber (EPM).

Abstract: Disclosed is a crosslinking density measurement sheet from which information for determining an actual manufacturing condition of a laminator for manufacturing a solar cell module is obtainable. The manufacturing condition of a laminator for manufacturing a solar cell module can be determined within a short period of time by constituting the crosslinking density measurement sheet as a composite sheet provided with a support and a rubber sheet member integrated with the support and estimating a crosslinking density of a encapsulant within a solar cell module from a change of the crosslinking density of the rubber sheet member before and after a laminating treatment with the laminator for manufacturing a solar cell module.

Abstract: An object of the present invention is to provide an olefin-based thermoplastic elastomer composition that has both weatherability and flexibility at low temperatures, is excellent in fluidity, and causes no stickiness even in the use at high temperatures; a process oil composition for elastomers that serves as the raw material of the thermoplastic elastomer composition and contributes to the above characteristics; and an oil-extended elastomer containing the process oil composition. The process oil composition for elastomers of the present invention has a property that, when 20 parts by weight of the process oil composition for elastomers are blended with respect to 100 parts by weight of a propylene homopolymer, the melting point of the propylene homopolymer is lowered by 2 to 4.5° C. compared to that of the propylene homopolymer without blending.

Abstract: The present invention provides a vulcanized foamed rubber molded product which has surface smoothness equal to or higher than that of a non-foamed vulcanized rubber molded product, has excellent mechanical strength properties, compression set resistance and abrasion resistance and a non-foamed vulcanized rubber molded product which is superior in surface smoothness to a conventional non-foamed vulcanized rubber molded product and has excellent compression set resistance, mechanical strength properties and abrasion resistance, as well as a method of producing the same. The molded product of the present invention is characterized in that the amount of sulfur atoms present in the surface thereof is at least 1.2 times as high as the amount of sulfur atoms present in a cut face obtained by cutting the surface to a depth of 1.0 mm in the vertical direction.

Abstract: An object of the present invention is to provide an olefin-based thermoplastic elastomer composition that has both weatherability and flexibility at low temperatures, is excellent in fluidity, and causes no stickiness even in the use at high temperatures; a process oil composition for elastomers that serves as the raw material of the thermoplastic elastomer composition and contributes to the above characteristics; and an oil-extended elastomer containing the process oil composition. The process oil composition for elastomers of the present invention has a property that, when 20 parts by weight of the process oil composition for elastomers are blended with respect to 100 parts by weight of a propylene homopolymer, the melting point of the propylene homopolymer is lowered by 2 to 4.5° C. compared to that of the propylene homopolymer without blending.

Abstract: The present invention provides a vulcanized foamed rubber molded product which has surface smoothness equal to or higher than that of a non-foamed vulcanized rubber molded product, has excellent mechanical strength properties, compression set resistance and abrasion resistance and a non-foamed vulcanized rubber molded product which is superior in surface smoothness to a conventional non-foamed vulcanized rubber molded product and has excellent compression set resistance, mechanical strength properties and abrasion resistance, as well as a method of producing the same. The molded product of the present invention is characterized in that the amount of sulfur atoms present in the surface thereof is at least 1.2 times as high as the amount of sulfur atoms present in a cut face obtained by cutting the surface to a depth of 1.0 mm in the vertical direction.

Abstract: This invention relates to a composition comprising (A) an ethylene-?-olefin having 3 to 20 carbon atoms-non-conjugated polyene copolymer, (B) a specific fine-powdered silicic acid and/or a silicate having a specific surface area of 5 to 500 m2/g (BET adsorption amount: ISO 5794/1, Annex D), (C) at least one kind of ?,?-unsaturated carboxylic acid metal salts, (D) an organic peroxide, further optionally (E) one antioxidant selected from sulfur-containing antioxidants, phenolic antioxidants and amine antioxidants, and/or (F) sulfur, and this invention relates to a rubber product obtainable by crosslinking the above composition.

Abstract: The present invention provides a vulcanized foamed rubber molded product which has surface smoothness equal to or higher than that of a non-foamed vulcanized rubber molded product, has excellent mechanical strength properties, compression set resistance and abrasion resistance and a non-foamed vulcanized rubber molded product which is superior in surface smoothness to a conventional non-foamed vulcanized rubber molded product and has excellent compression set resistance, mechanical strength properties and abrasion resistance, as well as a method of producing the same. The molded product of the present invention is characterized in that the amount of sulfur atoms present in the surface thereof is at least 1.2 times as high as the amount of sulfur atoms present in a cut face obtained by cutting the surface to a depth of 1.0 mm in the vertical direction.

Abstract: The crosslinkable rubber composition of the invention is crosslinkable by hot air, and a hot-air crosslinked rubber sheet thereof has no scratch on the surface in a hardness test using a pencil of HB and has a compression set of not more than 70% after a heat treatment at 150° C. for 22 hours. The rubber composition comprises an ethylene/?-olefin/non-conjugated polyene random copolymer rubber comprising a specific vinyl end group-containing norbornene compound, a SiH group-containing compound having at least two SiH groups in one molecule, and if necessary, an addition reaction catalyst comprising a platinum group element and a reaction inhibitor. The automobile weatherstrip, hose, rubber vibration insulator, belt, sealing material, expanded product, covered electric wire, electric wire joint, electric insulating part and household rubber product according to the invention comprise the above-mentioned rubber composition.

Abstract: This invention relates to a rubber composition for extrusion and molding comprising 100 weight parts of ethylene/&agr;-olefin/non-conjugated polyene copolymer (A) composed of ethylene, &agr;-olefin having carbon atoms of 3-20 and non-conjugated polyene, and at least 30-300 weight parts of carbon black (B), and 1.0×10−5-5.0×10−3 mol of an alkoxysilane compound shown by the following formula (I): wherein, R is alkyl or alkoxy, R1 is alkyl or phenyl, n is 0, 1 or 2, R2 is a bivalent hydrocarbon, R3 is arylene group, m and p are 0 or 1 respectively, and m and p are not 0 at a same time, q is 1 or 2, and D is —SCN or —SH when q is 1, and —Sx— when q is 2 (wherein x is an integer of 2-8).