Sekisui Chemical Co., Ltd.

Masahiro Asuka

Masahiro Ishii

Hiroshi Hiraike

Takahiko Sawada

Motohiko Asano

Kiyomi Uenomachi

Hiroaki Okuyama

Jiamo Guo

Takahiro Nomura

There are provided an inorganic film in which the light transmittance is not decreased also when the inorganic film is laminated on organic material such as a resin, and a laminate. An inorganic filmwhich comprises a refractive index gradient filmhaving a refractive index changing continuously from nto n(n&#x3c;n) and being a functional film; and a refractive index gradient filmhaving a refractive index changing continuously from nto n(n&#x3c;n) and being a functional film, and in which further, a difference between nand nis 0.1 or less.

Inorganic film and laminate

The present invention provides a sealing material for a solar cell that seals a solar cell element of a solar cell in a short time in the production of a solar cell module, thereby enabling efficient production of solar cell modules. The sealing material for a solar cell of the present invention has a feature of containing 100 parts by weight of a modified butene-based resin that is produced by graft-modifying a butene-ethylene copolymer having a butene content of 1 to 25% by weight with maleic anhydride and has a total content of the maleic anhydride of 0.1 to 3% by weight, and 0.1 to 15 parts by weight of a silane compound having an epoxy group.

Sealing material for solar cell, protective sheet for solar cell, and process for production of solar cell module

Growing community of inventors

Shimamoto-cho, Japan

Masahiro Asuka