Abstract: A solar cell sealing material of the present invention is a solar cell sealing material that is used to seal a solar cell element and includes an ethylene.?-olefin copolymer, an organic peroxide (A) having a one-hour half-life temperature in a range of equal to or higher than 100° C. and equal to or lower than 130° C., and an organic peroxide (B) having a one-hour half-life temperature in a range of higher than 130° C. and equal to or lower than 160° C., and a ratio (X2/X1) of a content X2 of the organic peroxide (B) to a content X1 of the organic peroxide (A) in the solar cell sealing material is equal to or more than 0.05 and equal to or less than 1.10.

Abstract: A solar cell sealing material of the present invention is a solar cell sealing material that is used to seal a solar cell element and includes an ethylene.?-olefin copolymer, an organic peroxide (A) having a one-hour half-life temperature in a range of equal to or higher than 100° C. and equal to or lower than 130° C., and an organic peroxide (B) having a one-hour half-life temperature in a range of higher than 130° C. and equal to or lower than 160° C., and a ratio (X2/X1) of a content X2 of the organic peroxide (B) to a content X1 of the organic peroxide (A) in the solar cell sealing material is equal to or more than 0.05 and equal to or less than 1.10.

Abstract: A solar cell module includes a light-receiving surface-side protective member, a rear surface-side protective member, solar cell elements, and an encapsulating layer that encapsulates the solar cell elements between the light-receiving surface-side protective member and the rear surface-side protective member. The light-receiving surface-side protective member has a plurality of fine recess portions and a plurality of fine protrusion portions on at least a solar cell element side surface, busbar electrodes are provided to the solar cell elements on at least a light-receiving surface-side surface. The encapsulating layer has a light-receiving surface side-encapsulating layer having an effective thickness of 0.01 mm to less than 0.25 mm and a rear surface-side encapsulating layer, and the solar cell elements are encapsulated between the light-receiving surface side-encapsulating layer and the rear surface-side encapsulating layer.

Abstract: A photo-crosslinkable ethylene-based resin composition of the present invention includes an ethylene-based copolymer having a Shore A hardness measured in accordance with ASTM D2240 of equal to or more than 55 and equal to or less than 95, a photo-crosslinking initiator, and a crosslinking aid, in which the content of the crosslinking aid is equal to or more than 0.1 parts by mass and less than 2.0 parts by mass with respect to 100 parts by mass of the ethylene-based copolymer.

Abstract: Disclosed is a solar cell module including an n-type crystalline silicon-based solar cell element as a power generation element, in which at least one surface of the n-type crystalline silicon-based solar cell element is encapsulated with a solar-cell encapsulating material including an ethylene•?-olefin copolymer satisfying the following requirements a1) to a4). a1) A content proportion of a structural unit derived from ethylene is in a range of 80 to 90 mol %, and a content proportion of a structural unit derived from an ?-olefin having 3 to 20 carbon atoms is in a range of 10 to 20 mol %. a2) MFR measured under defined conditions is in a range of 0.1 to 50 g/10 minutes. a3) A density, which is measured under defined conditions in a range of 0.865 to 0.884 g/cm3. a4) A Shore A hardness, which is measured under defined conditions is in a range of 60 to 85.

Abstract: According to the present invention, a resin composition for a solar-cell encapsulating material includes an ethylene•?-olefin copolymer of which an MFR measured based on ASTM D1238 under conditions of 190° C. and a load of 2.16 kg is equal to or less than 10 g/10 minutes, a silane coupling agent, and a hindered amine-based photostabilizer. pH of the hindered amine-based photostabilizer, which is measured by using the following measuring method is equal to or less than 9.0. In the measuring method, the pH is measured by using a potential difference measuring device and by using a solution which contains 10 g of acetone, 1 g of water, and 0.01 g of the hindered amine-based photostabilizer, as a sample.

Abstract: There are disclosed a pair of solar battery-sealing sheets composed of a light-receiving side-sealing sheet and a backside-sealing sheet for solar electricity generating elements of a solar battery module and reducing the coming-around of the backside-sealing sheet, wherein the melt peak temperature based on a differential scanning calorimetry (DSC) of the backside-sealing sheet is higher than the melt peak temperature based on the differential scanning calorimetry (DSC) of the light-receiving side-sealing sheet; and a solar battery module using the light-receiving side-sealing sheet and the backside-sealing sheet of the solar battery-sealing sheet, and a method for manufacturing the solar battery module.

Abstract: An ethylene resin composition is provided which has excellent properties including adhesion properties, electrically insulating properties, transparency, moldability and process stability and can be produced without requiring any cross-linking procedure if necessary to improve productivity; and others. The ethylene resin composition contains a modified product produced by modifying an ethylene polymer (A) that meets all of the requirements a) to e) mentioned below with an ethylenically unsaturated silane compound (B). a) The density is 900 to 940 kg/m3. b) The melting peak temperature is 90 to 125 ° C. as determined by DSC. c) The melt flow rate (MFR2) is 0.1 to 100 g/10 minutes as measured at 190 ° C. and a load of 2.16 kg in accordance with JIS K-6721. d) The Mw/Mn ratio is 1.2 to 3.5. e) The content of metal residues is 0.1 to 50 ppm.

Abstract: Disclosed is an encapsulating material for solar cell containing an ethylene/?-olefin copolymer satisfying the following requirements (a1) to (a4): (a1) the content ratio of structural units derived from ethylene is from 80 to 90 mol % and the content ratio of structural units derived from ?-olefin having 3 to 20 carbon atoms is from 10 to 20 mol %; (a2) MFR is from 10 to 50 g/10 minutes as measured under the conditions of a temperature of 190 degrees centigrade and a load of 2.16 kg in accordance with ASTM D1238; (a3) the density is from 0.865 to 0.884 g/cm3 as measured in accordance with ASTM D1505; and (a4) the shore A hardness is from 60 to 85 as measured in accordance with ASTM D2240.

Abstract: Disclosed is an encapsulating material for solar cell containing an ethylene/?-olefin copolymer satisfying the following requirements (a1) to (a4): (a1) the content ratio of structural units derived from ethylene is from 80 to 90 mol % and the content ratio of structural units derived from ?-olefin having 3 to 20 carbon atoms is from 10 to 20 mol %; (a2) MFR is from 10 to 50 g/10 minutes as measured under the conditions of a temperature of 190 degrees centigrade and a load of 2.16 kg in accordance with ASTM D1238; (a3) the density is from 0.865 to 0.884 g/cm3 as measured in accordance with ASTM D1505; and (a4) the shore A hardness is from 60 to 85 as measured in accordance with ASTM D2240.

Abstract: The purpose of the present invention is to provide an ethylene resin composition which has excellent properties including adhesion properties, electrically insulating properties, transparency, moldability and process stability and can be produced without requiring any cross-linking procedure if necessary to improve productivity; and others. The ethylene resin composition contains a modified product produced by modifying an ethylene polymer (A) that meets all of the requirements a) to e) mentioned below with an ethylenically unsaturated silane compound (B). a) The density is 900 to 940 kg/m3. b) The melting peak temperature is 90 to 125 DEG C as determined by DSC. c) The melt flow rate (MFR2) is 0.1 to 100 g/10 minutes as measured at 190° C. and a load of 2.16 kg in accordance with JIS K-6721. d) The Mw/Mn ratio is 1.2 to 3.5. e) The content of metal residues is 0.1 to 50 ppm.

Abstract: To provide a negative photosensitive material containing a quaternary ammonium salt in an amount of 5 to 30 weight parts based on 100 weight parts of a polyimide precursor having repeating units of the following general formula (I), wherein said quaternary ammonium salt is a photobase generator for generating a tertiary amine by irradiation with an active ray, and said tertiary amine contains one or more nitrogen atoms and oxygen atoms respectively in a molecule, wherein, in the formula (I), X is a tetravalent aliphatic group or a tetravalent aromatic group; and Y is a divalent aliphatic group or a divalent aromatic group.

Abstract: A rewritable optical information recording medium including a recording layer composed of an organic dye film is provided, in which recording and erasing information can be performed reversibly by laser light irradiation. A rewritable optical information recording medium including at least one organic dye film which is substantially made of only at least one kind of organic dye compounds as a recording film is provided. The recording and erasure of information are performed by a reversible physical change of the organic dye film substance caused by laser light irradiation.

Abstract: An optical recording medium comprising a recording layer, a light interference layer, a reflective layer and a protective layer that are laminated on a substrate, characterized in that said recording layer and said light interference layer comprise at least one organic dye, and that a light absorbent and/or a thermal decomposition promoter are/is added to said light interference layer, wherein the optical recording medium has compatibility that allows good recording and/or reproduction by using lasers of different two wavelength ranges and has good recording properties.