摘要:
To provide an encapsulation material for a solar cell element that would not require the use of any organic peroxide, consequently bringing about an improvement in the efficiency in the production of solar cell modules, and would have such excellent transparency, heat resistance and flexibility as will make a reduction in the thickness of solar cell elements adequately possible, and a solar cell module using the encapsulation material. A preferable embodiment is an encapsulation material for a solar cell element comprising a ethylene-polar monomer copolymer having polar monomer unit content of 10-40 wt% and melting point of not lower than 75°C and HAZE of not more than 10% and meeting the condition of -3.0X+125?T ?3.0X+109, wherein T is melting point (°C) and X is polar monomer unit content (mol%).
摘要:
This invention is directed to the discovery that ethylene - acid copolymers that have low melt flow index MFI (namely less than 100 g/10 min measured according to ASTM D1238 at 190 °C, 2.16kg) even with low acid content (such as less than 20 wt.%) can provide stable aqueous dispersions directly in aqueous media (i.e. free from any other solvent) with less than 1 wt.% non-dispersibles in single bases even at mild dispersion process conditions, at temperature less than 100 °C, atmospheric pressure, and with low agitation speed.
摘要:
The invention relates to a laminate comprising a first layer comprising polyester, and a second layer comprising a copolymer of ethylene and methyl acrylate obtained by copolymerization of ethylene monomers and methyl acrylate monomers in a tubular reactor. The laminate may also comprise additional layers. The laminate shows an improved adhesion strength between the first and the second layer.
摘要:
The invention relates to a laminate comprising a first layer comprising polyester, and a second layer comprising a copolymer of ethylene and methyl acrylate obtained by copolymerization of ethylene monomers and methyl acrylate monomers in a tubular reactor. The laminate may also comprise additional layers. The laminate shows an improved adhesion strength between the first and the second layer.
摘要:
A thermoplastic shrinkable film consisting of two or more layers, including, at least, (a) a layer of a polyolefin, (b) a layer of a blend of a polyolefin and an ionomer is disclosed. Optionally, the film contains (c) a further layer of a polyolefin, in which case layer (b) is positioned between layers (a) and (c). Films according to this invention demonstrate omnidirectional tearability, good clarity and strength and are cost competitive with other films on the market.
摘要:
A thermoplastic shrinkable film consisting of two or more layers, including, at least, (a) a layer of a polyolefin, (b) a layer of a blend of a polyolefin and an ionomer is disclosed. Optionally, the film contains (c) a further layer of a polyolefin, in which case layer (b) is positioned between layers (a) and (c). Films according to this invention demonstrate omnidirectional tearability, good clarity and strength and are cost competitive with other films on the market.
摘要:
The present invention relates to a sealant composition comprising i) at least a copolymer of propylene and a-olefins, and ii) at least a copolymer of ethylene and alkyl acrylate, wherein the alkyl acrylate is present in an amount ranging from about 1 to less than 9 weight percent, relative to the weight of the sealant composition. It also relates to a multilayer film or a packaging comprising a sealant layer comprising such a composition.
摘要:
The present invention relates to a sealant composition comprising i) at least a copolymer of propylene and a-olefins, and ii) at least a copolymer of ethylene and alkyl acrylate, wherein the alkyl acrylate is present in an amount ranging from about 1 to less than 9 weight percent, relative to the weight of the sealant composition. It also relates to a multilayer film or a packaging comprising a sealant layer comprising such a composition.
摘要:
This invention is directed to the discovery that ethylene - acid copolymers that have low melt flow index MFI (namely less than 100 g/10 min measured according to ASTM D1238 at 190 °C, 2.16kg) even with low acid content (such as less than 20 wt.%) can provide stable aqueous dispersions directly in aqueous media (i.e. free from any other solvent) with less than 1 wt.% non-dispersibles in single bases even at mild dispersion process conditions, at temperature less than 100 °C, atmospheric pressure, and with low agitation speed.
摘要:
To provide an encapsulation material for a solar cell element that would not require the use of any organic peroxide, consequently bringing about an improvement in the efficiency in the production of solar cell modules, and would have such excellent transparency, heat resistance and flexibility as will make a reduction in the thickness of solar cell elements adequately possible, and a solar cell module using the encapsulation material. A preferable embodiment is an encapsulation material for a solar cell element comprising a ethylene-polar monomer copolymer having polar monomer unit content of 10-40 wt% and melting point of not lower than 75°C and HAZE of not more than 10% and meeting the condition of -3.0X+125?T ?3.0X+109, wherein T is melting point (°C) and X is polar monomer unit content (mol%).