Dai Nippon Printing Co., Ltd.

Mitsubishi Plastics, Inc.

Dai-ichi Kogyo Seiyaku Co., Ltd.

Jun Nishioka

Kouichirou Taniguchi

Michiko Otsuka

Yo Miyashita

Shinya Fukuda

Osamu Kakishita

Takeshi Fujita

Katsuaki Matsuo

Ryota Yamamoto

Shigeki Nishimura

Kazuo Kuzukawa

A solar cell encapsulant sheet including a resin layer (S) formed of a resin composition containing an olefine-based resin, wherein the storage elastic modulus at 25&#xb0; C. of the resin layer (S) is 200 MPa or less, at least one surface of the resin layer (S) is the sheet surface of the encapsulant sheet, and the sheet surface satisfies the following requirements (a), (b) and (c): (a) the dynamic friction coefficient on a tempered white glass plate is 1.5 or less, (b) the surface roughness Rzjis is from 0.1 to 50 &#x3bc;m, and (c) the static friction coefficient on a tempered white glass plate is 1.5 or less.

Sealing sheet for solar cell

A solar cell module having a good appearance after lamination and a method for producing such a solar cell module are provided by specifying the combination guideline for encapsulants capable of bettering the appearance after lamination. The solar cell module contains an upper protective material (A), an encapsulant (B) for use on the side of the upper protective material (A), a solar cell device (C), an encapsulant (D) for use on the side of a back sheet (E), and the back sheet (E), wherein the encapsulant (B) and the encapsulant (D) satisfy the following requirement (P), and the production method produces the solar cell module. Requirement (P): The flow beginning temperature (TB) (&#xb0; C.) of the encapsulant (B) and the flow beginning temperature (TD) (&#xb0; C.) of the encapsulant (D), as measured under a load of 1 kgf/cm, have the following relationship: TB&#x2212;TD&#x3e;0 (&#xb0; C.).

Solar battery module and method of manufacture thereof

Provided are a solar cell encapsulant material which facilitates production of solar cell modules, which does not require a crosslinking step and which is excellent in heat resistance and others, and a solar cell module produced by the use of the encapsulant material. The solar cell encapsulant material comprises a resin composition (C) that contains an olefin-based polymer (A) satisfying the following requirement (a) and an olefin-based polymer (B) satisfying the following requirement (b). (a) The crystal melting peak temperature of the polymer, as measured at a heating rate of 10&#xb0; C./min in differential scanning calorimetry, is lower than 100&#xb0; C. (b) The extrapolated onset temperature of melting of the polymer, as measured at a heating rate of 10&#xb0; C./min in differential scanning calorimetry, is 100&#xb0; C. or higher.

Solar cell sealing material, and solar cell module prepared by using same

There is provided an encapsulant material for solar cells which facilitates production of a solar cell module and is excellent in flexibility, heat resistance, transparency, etc., and a solar cell module produced using the encapsulant material. The present invention relates to an encapsulant material for solar cells which includes a resin composition (C) containing an ethylene-&#x3b1;-olefin random copolymer (A) capable of satisfying the following condition (a) and an ethylene-&#x3b1;-olefin block copolymer (B) capable of satisfying the following condition (b): (a) a heat of crystal fusion is from 0 to 70 J/g as measured in differential scanning calorimetry at a heating rate of 10&#xb0; C./min; and (b) a crystal fusion peak temperature is 100&#xb0; C. or higher and a heat of crystal fusion is from 5 to 70 J/g as measured in differential scanning calorimetry at a heating rate of 10&#xb0; C./min.

Solar cell sealing material and solar cell module produced using the same

Plate making film, plate making ink, plate making method using the film, and plate making system using the film

A water-soluble composite film including a special film mainly made of water soluble high molecular compound composed of a specific repetitive unit and a polyvinyl alcohol resin film layered thereon to be laminated. This composite film can be used as a packaging material for chemicals and the like with the above special film inside. Thus, this water soluble composite film can be employed as a unit package material for bactericide, insecticide, dyestuff, pesticide and the like, or as a packaging material for disposable commodities of laundry bags, sanitary napkins and the like.

Water soluble composite film

Growing community of inventors

Nagahama, Japan

Jun Nishioka