The present invention relates to a first composition (A) comprising (i) is triallyl isocyanurate and triallyl cyanurate. Besides, the present invention, the first composition (A) and at least one polyolefin copolymer also relates to a second composition (B) comprising. Finally, the present invention relates to the use of the composition (B) for producing a film for encapsulating an electronic device, in particular a solar cell.
Background of the Invention Detailed Description of the Invention
The Covernetzersystem invention is therefore a composition (A)comprising triallyl isocyanurate (= "TAIC") and triallyl cyanurate (= "TAC"), wherein the triallyl cyanurate in an amount of 1.0 to 50.0 mol .-%, based on the amount of the triallyl isocyanurate is present, ,
The ratio of the amount of TAC in the composition (A) based on the amount of TAIC in the composition (A) is in the range 1.0 to 50.0 mol .-%, in particular 2.0 to 40 mol .-%, preferably 2.0 to 25 mol. -%, more preferably 2.0 to 15 mol .-%, more preferably 2.0 to 4.2 mol .-%, most preferably 3.0 mol .-% to 4.0 mol .-%.
It has been found in the course of the present invention that an increase of the specific resistance in particular already at the addition of small amounts of TAC can be detected, namely, when the composition (A)relative the amount of TAC is located on the amount of TAIC at 1 mol .-% ,In view of the economic use of TAC and TAIC other hand, a proportion amount of TAC based on the amount of TAIC of 50.0 mol .-% is a preferred upper limit.
Accordingly, the present invention also relates to a composition (B)comprising at least one polyolefin and the composition of the invention(A).
More preferably, polyolefin copolymer according to the invention in thecomposition (B) is an ethylene-vinyl acetate copolymer.
The proportion of the composition (B) comprised composition (A) is not particularly limited. The proportion of the composition (A) in thecomposition (B) is in particular in the range of 0.05 to 10 wt .-%, preferably in the range of 0.1 to 5 wt .-%, more preferably in the range of 0.2 to 3 wt .-%, more preferably 0.3 to 1.5 wt .-%, more preferably at 0.5% by weight, each based on the mass of all of the composition (B) comprised polyolefin.
The composition (B) is according to the invention for producing an encapsulation film for electronic devices, such as solar cells. It is subjected to in the solar module lamination of a crosslinking reaction.
In a preferred embodiment of the present invention, the composition (B)therefore also comprises an initiator selected from the group consisting of peroxide compounds, azo compounds, photoinitiators. More preferably, the initiator is selected from the group consisting of peroxide compounds, azo compounds. Examples of this are " described ".
The mass of the peroxide compound or azo compound, preferably of the peroxide compound is used based on the weight of the polyolefin copolymer is not particularly limited. The peroxide compound or azo compound, preferably, the peroxide compound, in particular in an amount of 0.05 to 10 wt .-%, preferably 0.1 to 5 wt .-%, more preferably 0.5 to 2 wt .-%, each based on the mass of all of the composition (B) comprised polyolefin employed.
The photoinitiator is preferably in an amount of 0.05 to 10 wt .-%, preferably 0.1 to 5 wt .-%, more preferably 0.2 to 3 wt .-%, more preferably 0.25 to 1 wt .-%, each based on the mass of all of the composition (B)comprised polyolefin employed.