An adhesive for laminated sheets comprising a urethane resin obtainable by mixing an acrylic polyol with an isocyanate compound. The acrylic polyol is obtained by polymerizing a mixture including a first monomer having a hydroxyl group and acrylonitrile. The isocyanate compound includes both an isocyanate compound having no aromatic ring and an isocyanate compound having an aromatic ring. Also cured reaction products of the adhesive and films laminated using the adhesive.

An adhesive for laminated sheets comprising a urethane resin obtainable by mixing an acrylic polyol with an isocyanate compound. The acrylic polyol is obtained by polymerizing a mixture including a first monomer having a hydroxyl group and acrylonitrile. The isocyanate compound includes both an isocyanate compound having no aromatic ring and an isocyanate compound having an aromatic ring. Also cured reaction products of the adhesive and films laminated using the adhesive.

The disclosure provides a flexible solar panel, wherein a plurality of first main grid lines are arranged on a positive electrode surface of a solar cell body and are welded to a first solder strip; a plurality of second main grid lines are arranged on a negative electrode surface of the solar cell body and are welded to a second solder strip; a copper mesh is formed by a plurality of copper wires crossed transversely and vertically, and the copper mesh is composited on the positive electrode surface; a positive electrode EVA film is composited on the copper mesh; the solar cell body, the copper mesh and the positive electrode EVA film form a solar cell; a plurality of solar cells are connected in series and installed on a PCB board; a negative electrode EVA film covers the negative electrode surfaces of the solar cells.

One embodiment can provide a photovoltaic roof tile. The photovoltaic roof tile can include a transparent front cover, a transparent back cover, and a plurality of polycrystalline-Si-based photovoltaic structures positioned between the front cover and the back cover. A respective polycrystalline-Si-based photovoltaic structure has a front surface facing the front cover and a back surface facing the back cover. The photovoltaic roof tile can further include a paint layer positioned on a back surface of the back cover facing away from the front cover. A color of the paint layer substantially matches a color of the front surface of the respective polycrystalline-Si-based photovoltaic structure.

One embodiment can provide a photovoltaic roof tile. The photovoltaic roof tile can include a transparent front cover, a transparent back cover, and a plurality of polycrystalline-Si-based photovoltaic structures positioned between the front cover and the back cover. A respective polycrystalline-Si-based photovoltaic structure has a front surface facing the front cover and a back surface facing the back cover. The photovoltaic roof tile can further include a paint layer positioned on a back surface of the back cover facing away from the front cover. A color of the paint layer substantially matches a color of the front surface of the respective polycrystalline-Si-based photovoltaic structure.

A solar panel includes a front portion. The front portion includes an electrical insulation layer and a front face sheet layer coupled to the electrical insulation layer. The solar panel also includes a cell coupled to the front portion to produce a tile. The solar panel also includes a back portion coupled to the tile. The back portion includes a honeycomb core layer and a back face sheet layer coupled to the honeycomb core layer.

A solar panel includes a front portion. The front portion includes an electrical insulation layer and a front face sheet layer coupled to the electrical insulation layer. The solar panel also includes a cell coupled to the front portion to produce a tile. The solar panel also includes a back portion coupled to the tile. The back portion includes a honeycomb core layer and a back face sheet layer coupled to the honeycomb core layer.

Polyolefin photovoltaic (PV) backsheets comprise a polypropylene layer stabilized with (A) at least one hindered amine with 2,2,6,6-tetraalkylpiperdine or 2,2,6,6-tetraakylpiperazinone, either or both in combination with a triazine moiety, (B) a thioester, and, optionally, (C) at least one hindered hydroxybenzoate, and/or (D) an ortho hydroxyl triazine compound. These PV backsheets exhibit a low flame spread index of <100 without the use of FR agents, and the polypropylene layer exhibits good weatherability while providing the required long term heat aging performance necessary for PV modules.

Polyolefin photovoltaic (PV) backsheets comprise a polypropylene layer stabilized with (A) at least one hindered amine with 2,2,6,6-tetraalkylpiperdine or 2,2,6,6-tetraakylpiperazinone, either or both in combination with a triazine moiety, (B) a thioester, and, optionally, (C) at least one hindered hydroxybenzoate, and/or (D) an ortho hydroxyl triazine compound. These PV backsheets exhibit a low flame spread index of <100 without the use of FR agents, and the polypropylene layer exhibits good weatherability while providing the required long term heat aging performance necessary for PV modules.

A solar module (2) comprising: (a) a plurality of interconnected photovoltaic cells (4); (b) a forward protective layer (22); (c) a rearward protective layer (24); and (d) an reinforcement (10); wherein the reinforcement is integrally located within the solar module and extends from a location substantially proximate to the forward protective layer to a location substantially proximate to the rearward protective layer.