Abstract: A solar cell encapsulated with an encapsulating material which is a non-crystalline or low-crystalline ?-olefin-based copolymer or its composition (I). The composition (C) can contain 50 to 100 parts by weight of non-crystalline ?-olefin polymer (A) which meets the following requirements: (a) the ?-olefin having 3 to 20 carbon atoms is not less than 20 mol %, (b) practically no melt peak as measured by a differential scanning calorimeter is observed, and (c) the Mw/Mn is not more than 5, and 50 to 0 parts by weight of crystalline ?-olefin polymer (B) (the total of (A) and (B) being 100 parts by weight). The non-crystalline or low-crystalline ?-olefin copolymer may also have a crystallinity of not higher than 40% as measured by use of X rays.

Abstract: The present invention provides a resin composition including (1) at least one selected from the group consisting of ethylene-?,?-unsaturated carboxylic acid copolymers and ionomers thereof, which have a melt flow rate of from 0.5 g/10 min to 6 g/10 min, (2) at least one selected from the group consisting of ethylene-?,?-unsaturated carboxylic acid copolymers and ionomers thereof, which have a melt flow rate of from 10 g/10 min to 30 g/10 min, and (3) at least one selected from the group consisting of propylene homopolymers and copolymers obtained by copolymerization using propylene and one or more ?-olefins excluding propylene, in which a structural unit derived from an ?,?-unsaturated carboxylic acid ester is substantially not contained in the total amount of the ethylene-?,?-unsaturated carboxylic acid copolymers and the ionomers thereof.

Abstract: The present invention provides a multilayer material which has a layer (A) that contains a silane coupling agent and an ethylene type zinc ionomer, and a layer (B) that contains at least one of an ethylene type magnesium ionomer or an ethylene type sodium ionomer. The multilayer material is suitable for use as an encapsulant for a solar cell or an interlayer for safety (laminated) glass. It is preferable that the multilayer material contains at least two of the layer (A) and at least one of the layer (B) and has a multilayered structure in which the layer (B) is interposed between the two of the layer (A).

Abstract: Disclosed is a saponified polymer-containing composition containing a saponified polymer (A), which is obtained by alkaline saponification of an ethylene-unsaturated carboxylic acid random copolymer, and a dimer acid (B).

Abstract: Provided is a process for producing an aqueous dispersion liquid, wherein, in an aqueous medium, an ethylene/(meth)acrylic acid copolymer (A) containing (meth)acrylic acid-derived constituent units in an amount of 8% by mass or more is neutralized by using an alkanolamine (B) and dispersed. The above-described alkanolamine (B) is preferably represented by general formula (1) below. [In general formula (1) above, R1 to R3 represent independently of each other a hydrogen atom, an alkyl group, or a saturated aliphatic hydrocarbon group having one hydroxyl group, and at least one of R1 to R3 represents a saturated aliphatic hydrocarbon group having one hydroxyl group.

Abstract: The present invention provides a process for producing an encapsulating material for solar cell which makes high-speed crosslinking possible and causes no blister phenomenon without significant restrictions being imposed on the conditions for molding the encapsulating material. The present invention provides a process for producing the encapsulating material for solar cell including impregnating a molded form of an ethylene copolymer with an organic peroxide in a liquid state at normal temperature which shows a decomposition temperature (a temperature at which the half-life period is one hour) of not higher than 150° C. A process for producing the encapsulating material for solar cell in which dialkyl peroxide (A) and an organic peroxide (B) selected from peroxycarbonate and peroxyketal at a ratio by weight of 10/90 to 90/10 of (A) and (B) in a liquid state impregnate the molded form of the ethylene copolymer is a preferable embodiment of the present invention.

Abstract: A synthetic resin hollow body (A) that has a satisfactory decorating property and a satisfactory recycle property in a disposal and that is hardly damaged. In addition, a product cost and an operation cost thereof can be suppressed. The synthetic resin hollow body (A) includes: a hollow molding body (a) made of a resin, the hollow molding body (a) capable of holding a liquid material; and a resin sheathing body formed outside the hollow molding body (a) in an integrating manner with the hollow molding body (a), wherein the resin sheathing body is made of a highly transparent synthetic resin having a total ray transmittance of at least 80%.

Abstract: An ionomer composition including an ionomer of an ethylene/?,?-unsaturated carboxylic acid copolymer and a dimer acid is provided.

Abstract: Provided is an amorphous silicon solar cell module including a solar cell encapsulant containing a metal deactivator and silane-modified polyethylene, and a metal material adjacent to the solar cell encapsulant and having at least one selected from copper, a lead-free solder alloy and a silver film.

Abstract: Provided is a polymer composition that contains an ionomer which includes an ethylene-?,?-unsaturated carboxylic acid copolymer and a ternary polymer of ethylene-?,?-unsaturated carboxylic acid-?,?-unsaturated carboxylic acid ester, and a propylene-based polymer, wherein a melt flow rate (MFR) value (under a load of 2160 g) of the ionomer at a process temperature in forming a film by T-die melting casting method is from 50% to 250% based on an MFR value of the propylene-based polymer under the same condition.

Abstract: The resin molding apparatus (200) is capable of rotatably support, around an axis of a neck portion (2), a hollow molded product having a main body having a form of a container and the cylindrical neck portion (2). A pinched portion (4), which is pinched by neck portion pinching parts (13, 14) of metallic mold members (11, 12) of the apparatus (200), is formed around the neck portion (2). An outer profile of the pinched portion (4) around the axis of the neck portion (2) is a non-circular profile. An integrated inner profile of the mated neck portion pinching parts (13, 14) is a profile along an outer profile of the pinched portion (4). When the neck portion pinching parts (13, 14) pinch the pinched portion (4), the neck portion pinching parts (13, 14) push the pinched portion (4) to rotate the hollow molded product, thereby correcting the rotation angle around the axis.

Abstract: A resin pellet of the present invention includes a resin base material and a plurality of microparticles embedded in the resin base material. The resin pellet is covered with the plurality of microparticles on the surface of the resin base material. According to the present invention, it is possible to prevent detachment of the microparticles to be applied on the resin base material and to effectively suppress blocking of resin pellets.

Abstract: A sheet for solar cell encapsulant including (A) an ethylene copolymer selected from 1a to 5a; and (B) an ethylene copolymer selected from 1b to 3b, the copolymer (A) having a melting point of 90° C. or higher and containing constituent unit derived from ethylene [1a: ethylene-vinyl acetate (VA) copolymer, 2a: ethylene-acrylate copolymer, 3a: high-pressure method low-density polyethylene, 4a: ethylene-?-olefin copolymer, 5a: ethylene-G(M)A copolymer other than the below-described 1b, 1b: ethylene-G(M)A copolymer, 2b: ethylene-VA-G(M)A copolymer, 3b: ethylene-acrylate-G(M)A copolymer]. In the ethylene copolymer (B), the total ratio of the constituent unit derived from glycidyl(meth)acrylate (G(M)A) is preferably from 2% to 30% by mass. As a result of this, crosslinking treatment is substantially unnecessary, and practical adhesion and adhesion stability are achieved without heat treatment for crosslinking.

Abstract: Provided is a sheet for a solar cell encapsulant containing (A) an ethylene-based polymer having a melting point of 90° C. or higher and containing an ethylene-derived constituent unit as a main component; (B) an ethylene-vinyl acetate copolymer having a vinyl acetate-derived constituent unit at a content ratio of from 19% to 40% by mass; and (C) a silane coupling agent having an amino group. The sheet for solar cell encapsulant has the excellent transparency and flexibility possessed by an ethylene-vinyl acetate copolymer. Furthermore, a crosslinking treatment is substantially unnecessary, and adhesiveness and adhesion stability that are appropriate for practical use are obtained.

Abstract: Disclosed is a method for producing an aqueous dispersion, which includes using ammonia (B) to neutralize and disperse an ethylene/methacrylic acid copolymer (A) in an aqueous medium in the presence of monohydric alcohol (C) containing 3 or more carbon atoms. The process allows for dispersion with ammonia and production of a low viscosity aqueous dispersion with better dispersibility and higher uniformity of the dispersed particles than a conventional process with ammonia neutralization.

Abstract: Disclosed are a metal layer-attached film for an electronic component having an adhesive layer excellent in adhesion to a metal and excellent in the productivity, a method for producing the film, and use application of the film. The metal layer-attached film for an electronic component has a metal layer stacked on at least one surface of a resin film through an adhesive layer, wherein the adhesive layer contains an ethylene-unsaturated carboxylic acid copolymer or a metal salt thereof.

Abstract: A multilayer sheet including an (A) layer containing an ethylene type zinc ionomer as a main component and a silane coupling agent, and a (B) layer containing a polyethylene-based copolymer with a melting point of 90° C. or higher as a main component and a silane coupling agent having a content ratio with respect to the resin material that is lower than a content ratio of the silane coupling agent with respect to resin material in the (A) layer, wherein the total thickness of the (A) layer and the (B) layer is from 0.1 to 2 mm. Such multilayer sheet may be superior in adhesive strength, durability and heat resistance, and obtained at a suppressed cost.

Abstract: An encapsulating material for solar cell containing a laminated adhesive and heat resistant layer (A) and a buffering layer (B), wherein a difference in flexural modulus between the heat resistant layer (A) and the buffering layer (B) is at least 30 MPa or more, is provided. The adhesive and heat resistant layer (A) is preferably an olefin polymer (a) having a melting point (according to JIS K7121) of 75° C. or higher and having a storage elastic modulus at 150° C. of 103 Pa or more and the buffering layer (B) is preferably an olefin polymer (d) having a stiffness of 100 MPa or less. The encapsulating material for solar cell can provide superior transparency, flexibility, heat resistance and adhesiveness and can remarkably improve production efficiency of a solar cell module even when no organic peroxide is used. The encapsulating material can also exhibit a performance capable of corresponding to the thickness reduction of the solar cell element even when an organic peroxide is used.

Abstract: A resin composition comprising at least one copolymer (A) selected from an ethylene/(meth)acrylic acid copolymer (A1) and an ethylene/(meth)acrylic acid/(meth)acrylic acid ester copolymer (A2), and a polyethylene (B), wherein when the total amount of (A) and (B) in the resin composition is set to be 100% by weight, the content of (A) is less than 100 to 46% by weight, the content of (B) is in excess of 0 but not larger than 54% by weight, and (A) contains 0.1 to 5% by weight of a (meth)acrylic acid unit.

Abstract: Disclosed is a process for producing a masterbatch, comprising a step of melt-kneading an ionomer that an ethylene-unsaturated carboxylic acid copolymer is partially neutralized with potassium and a hydrophobic polymer comprised of a hydrocarbon compound, and a step of drying the melt-kneaded mixture at a temperature of not less than the Vicat softening point of the ionomer after the melt-kneading.