Encapsulating material for solar cell

Details Encapsulating material for solar cell Encapsulating material for solar cell

2006-03-08

2011-11-08

Chevalier, Alicia (Department: 1788)

Stock material or miscellaneous articles

Composite

Of addition polymer from unsaturated monomers

C136S251000, C428S515000

Reexamination Certificate

active

08053086

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 103Pa 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. A solar cell module containing the encapsulating material is also provided.

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