Dai Nippon Printing Co., Ltd.

Zeon Corporation

Yupo Corporation

Kosuke Saeki

Jun Tanaka

Naohiro Obonai

Shinya Yoneda

Hiroaki Tamaki

Shinsuke Nagino

Toshio Yoshihara

Yasushi Shirahige

Hideki Matsui

Atsuo Tsuzuki

Tamio Shikano

Marii Nishikawa

Hidenori Asai

Shunsuke Nishimura

Noritoshi Akazawa

Yoshihiro Kanai

Shunsuke Furuya

To provide a sealing material sheet for a solar-cell module that has high productivity without performing crosslinking processing, and has a high tensile shear adhesion force at normal temperature at a high level in addition to heat resistance and molding characteristics. A sealing material sheet is a multi-layer sheet using a polyethylene-based resin as a base resin, a core layer has a density of 0.880 g/cmto 0.895 g/cmand a melting point of 70° C. or higher, a skin layer has a density of 0.880 g/cmto 0.910 g/cmand a melting point of 90° C. or lower and contains a silane-modified polyethylene-based resin, a weight average molecular weight of the silane-modified polyethylene-based resin contained in the skin layerin terms of polystyrene is 70000 to 120000, and a polymerized silane amount of the skin layer in the whole resin component is 300 ppm to 2000 ppm.

Sealing material sheet for solar-cell module and solar-cell module using the same

The present disclosure is directed to providing a self-adhesive foamed laminate sheet which is excellent in air escapability even after exposure to heat and pressure. The self-adhesive foamed laminate sheet of the present disclosure includes a synthetic paper substrate and a self-adhesive foamed sheet. The self-adhesive foamed sheet is formed from a composition for a self-adhesive foamed sheet including a polymer, a crosslinking agent, and a wax agent.

Self-adhesive foamed laminate sheet

A surface-emitting device includes: a light-emitting diode substrate including a supporting substrate, and a light-emitting diode element placed on one surface side of the supporting substrate; and a sealing member placed on a light-emitting diode element side surface of the light-emitting diode substrate, and configured to seal the light-emitting diode element; wherein the light-emitting diode element includes a transparent substrate including inorganic material, and a light-emitting layer formed on one surface of the transparent substrate; the light-emitting diode element is a bare chip in which the transparent substrate is exposed on a surface thereof; the sealing member is in contact with the transparent substrate on a side surface and a surface opposite side to a surface where the light-emitting layer is formed; and a haze value of the sealing member is 4% or more, and a thickness thereof is thicker than a thickness of the light-emitting diode element.

Surface-emitting device with a light emitting diode and a sealing member

To provide a sealing material sheet for a solar-cell module that has high productivity, and can also suppress unevenness in thickness at the time of integration as a solar-cell module. There is provided a sealing material sheetin which there are two inflection point temperatures that are temperatures only around which a change rate of the linear expansion coefficient locally increases, a first inflection point temperature at a low temperature side of two inflection point temperatures is within a range of 55° C. to 70° C., and a second inflection point at a high temperature side of the inflection point temperatures is within a range of 80° C. to 95° C.

Sealing material sheet for solar-cell module, solar-cell module using the same, and method for manufacturing solar-cell module

To provide a sealing material sheet for a solar-cell module that has high productivity, and can also suppress unevenness in thickness at the time of integration as a solar-cell module. There is provided a sealing material sheetin which there are two inflection point temperatures that are temperatures only around which a change rate of the linear expansion coefficient locally increases, a first inflection point temperature at a low temperature side of two inflection point temperatures is within a range of 55&#xb0; C. to 70&#xb0; C., and a second inflection point at a high temperature side of the inflection point temperatures is within a range of 80&#xb0; C. to 95&#xb0; C.

Provided is a sealing material sheet for solar cell modules, which is obtained by irradiating a polyethylene resin with ionizing radiation and has high transparency, heat resistance and adhesion at the same time. This sealing material sheet for solar cell modules contains a low density polyethylene having a density of 0.900 g/cmor less, while having a gel fraction of from 0% to 40% (inclusive) and a degree of dispersity (Mw/Mn), which is the ratio of the weight average molecular weight (Mw) to the number average molecular weight (Mn) in terms of polystyrene, of from 2.5 to 3.5 (inclusive).

Sealing material sheet for solar cell modules

The present invention provides a crosslinked polyethylene sealing material sheet for a solar-cell module offering exceptional heat resistance, wherein the sealing material sheet is provided with high metal-adhesion performance. A sealing material sheet for a solar-cell module comprises a sealing material sheet composition for a solar-cell module containing a polyethylene resin in a concentration of 0.900 g/cm3 or less, glycidyl methacrylate (GMA), a radical polymerization initiator, and triallyl isocyanurate (TAIC), wherein the GMA content of the sealing material sheet is 0.15 to 3.0% by mass, the TAIC content of the sealing material sheet is 0.15 to 3.0% by mass, and the radical polymerization initiator content of the sealer is 0.01 to 2.5% by mass.

Growing community of inventors

Tokyo, Japan

Kosuke Saeki