Shin-etsu Chemical Co., Ltd.

Hiroto Ohwada

Tomoyoshi Furihata

Naoki Yamakawa

Atsuo Ito

Atsushi Yaginuma

Junichi Tsukada

Minoru Igarashi

Sumio Sekiyama

Hyung Bae Kim

Tsutomu Nakamura

Masahiro Hinata

A transparent desiccant for organic EL and methods for using the transparent desiccant are described, which is a cured product of an organopolysiloxane composition that contains (A) an alkenyl-group-containing organopolysiloxane including a linear organopolysiloxane having at least two alkenyl groups per molecule, (B) chemical formula (I):HRSiO&#x2003;&#x2003;(I)(where R is a C1-10 monovalent hydrocarbon group, a is 0.001-1.0, and b is 0.7-2.1), and (C) a hydrosilylation catalyst. The number of mol Y of silicon-atom-bonded hydrogen atoms (mol) in component (B) satisfies the formula 0.002 (mol)&#x2264;(Y-X)&#x2264;0.8 (mol) relative to the number of mol X of silicon-atom-bonded alkenyl groups (mol) in component (A). The transparent desiccant for an organic EL is highly transparent, capable of top emission, has low shrinkage growth, suppresses loss of an element light-emitting portion, suppresses the short-circuit phenomenon, and has exceptional defoaming properties in the material curing process.

Transparent desiccant for organic EL, and method for using same

A method of manufacturing a solar cell module comprising pressing a first silicone gel sheet provided on a sunlight receiving surface of a solar cell string and a second silicone gel sheet provided on an opposite side sunlight non-receiving surface of the solar cell string in vacuum to encapsulate the solar cell string with the first and second silicone gel sheets; disposing the sunlight receiving surface side of the first silicone gel sheet on one surface of a transparent light receiving panel and disposing butyl rubber in a picture frame-like shape along an outer peripheral portion of a panel where the first silicone gel sheet is not formed and laying the light receiving panel and the light non-receiving panel or back sheet over each other with the silicone gel sheet-encapsulated solar cell string on the inside, and pressing them at 100 to 150&#xb0; C. in vacuum to press bond the light receiving surface panel and the light non-receiving surface panel or back sheet to each other through the butyl rubber.

Method of manufacturing solar cell module

A method of manufacturing a solar cell module comprising adhering a first silicone gel sheet to one surface of a transparent light receiving panel to be a sunlight incidence surface; adhering a second silicone gel sheet to one surface of a light non-receiving panel or back sheet on the side opposite to the sunlight incidence surface; disposing a solar cell string on the first silicone gel sheet of the light receiving panel, and disposing butyl rubber in a picture frame-like shape along an outer peripheral region of a panel where either of the silicone gel sheets are not formed; and laying the light receiving panel and the light non-receiving panel or back sheet over each other with the silicone gel sheets on the inside, and pressing them at 100 to 150&#xb0; C. in vacuum to encapsulate the solar cell string with the silicone gel sheets and press bond the light receiving panel and the light non-receiving panel or back sheet to each other through the butyl rubber.

A solar cell module is manufactured by encapsulating a solar cell matrix comprising a plurality of electrically connected solar cell components between a transparent panel and a backsheet with a resin. The method involves (i) embossing opposite surfaces of a green silicone rubber sheet, (ii) arranging a transparent panel (), silicone rubber sheet (), solar cell matrix (), silicone rubber sheet (), and backsheet () to form a multilayer assembly, and (iii) heating and compressing the assembly for vacuum lamination for establishing a seal around the solar cell matrix.

Manufacture of solar cell module

A solar cell module is manufactured by forming silicone coating films () on panels (), placing a solar cell matrix () on the silicone coating film on panel (), providing a seal member () consisting of a base seal member () of butyl rubber and protrusive seal segments () of butyl rubber on a peripheral region of panel (), mating the two panels together such that the seal member () may abut against a peripheral region of panel (), and the solar cell matrix () may be sandwiched between the silicone coating films (), and compressing and heating the mated panels () in vacuum for establishing a seal around the solar cell matrix ().

Growing community of inventors

Annaka, Japan

Hiroto Ohwada