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US 8,618,624 B2Granted
UV curable encapsulant
AssigneesArkema France, Pythagoras Solar Inc.
InventorsPierre Gerard, Izhar Halahmi, Pasha Solel
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Abstract
The present invention relates to UV curable encapsulant compositions based on acrylic and/or methacrylic block copolymers, to structures containing these compositions especially photovoltaic cells and to the use of these compositions in photovoltaic cells. The liquid encapsulant composition according to the invention comprises: an acrylic or methacrylic block copolymer, at least one acrylic or methacrylic monomer and/or oligomer, and at least one photo initiator.
Claims13
A liquid encapsulant composition comprising:
- an acrylic or methacrylic block copolymer, of the general formula:
- B-(A)n,
- in which:
- n is a natural integer greater than or equal to 1,
- B represents an acrylic or methacrylic polymer block composed of a sequence of monomer units which can be polymerized by the radical route, the overall Tg of which is less than 0° C.,
- A is an acrylic or methacrylic polymer block composed of a sequence of monomer units which can be polymerized by the radical route, the overall Tg of which is greater than 0° C.,
- block B represents at least 50% w/w of the block copolymer,
- at least one acrylic or methacrylic monomer and/or oligomer, and
- at least one photoinitiator.
6 more elements
Dependencies are inferred from the claim text.