Encapsulation composition for photovoltaic cell module and photovoltaic cell module comprising the same
AssigneeLG Chem, Ltd.
InventorsBeom Doo SEO, Hoon CHAE, Choong Hoon LEE, Sung Ho CHOI, Seung Ki PARK
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Abstract
The present application relates to an encapsulation composition and a photovoltaic cell module comprising the same, which may provide an encapsulation composition having excellent adhesivity of glass and modules with other members as well as excellent transparency, heat stability, ultraviolet stability and impact resistance. Therefore, the present application may provide a photovoltaic cell module that no peeling-off among elements, and the like, is caused, even when the module is used for a long time.
Claims18
An encapsulation composition comprising an ethylene-alpha olefin copolymer which satisfies the following General Formula 1;
- and a silane-modified ethylene-alpha olefin copolymer, wherein the ethylene-alpha olefin copolymer satisfying the following General Formula 1 has a melt flow index (MI) of 0.2 to 50 g/10 min:
- Re×Rc≦1.0 [General Formula 1]
- wherein Re represents kee/kec, and Rc represents kcc/kce, where kee represents a growth reaction rate constant when ethylene is added to a growing chain in which a terminal activating point is an ethylene monomer, kec represents a growth reaction rate constant when an alpha olefin comonomer is added to a growing chain in which a terminal activating point is an ethylene monomer, kcc represents a growth reaction rate constant when an alpha olefin comonomer is added to a growing chain in which a terminal activating point is an alpha olefin comonomer, and kce represents a growth reaction rate constant when an ethylene monomer is added to a growing chain in which a terminal activating point is an alpha olefin comonomer.
Dependencies are inferred from the claim text.