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US 9,865,752 B2Granted
Encapsulating material for solar cell and solar cell module
AssigneesMitsui Chemicals, Inc., Mitsui Chemicals Tohcello, Inc.
InventorsShigenobu Ikenaga, Fumito Takeuchi, Tomoaki Ito
Life of this patent
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Abstract
An encapsulating material for solar cell of the invention contains an ethylene/α-olefin copolymer, and a content of a fluorine element in the ethylene/α-olefin copolymer, which is determined using a combustion method and an ion chromatograph method, is equal to or less than 30 ppm.
Claims9
An encapsulating material for solar cell comprising:
- an ethylene/α-olefin copolymer,
- wherein the ethylene/α-olefin copolymer contains a fluorine element, and
- a content of the fluorine element in the ethylene/α-olefin copolymer, which is determined using a combustion method and an ion chromatograph method, is equal to or more than 1 ppm and equal to or less than 2.5 ppm,
- wherein the ethylene/α-olefin copolymer satisfies the following requirement a3):
- a3) a density, which is measured on the basis of ASTM D1505, is in a range of 0.865 g/cm3 to 0.884 g/cm3.
2 more elements
Dependencies are inferred from the claim text.