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US 2011/0236642 A1Published application
Near infrared absorbing phthalocyanines and their use
AssigneeBASF SE
InventorsFRANCESCA PERI, Cesare Lorenzetti, Samanta Cimitan, Markus Grob
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Abstract
The instant invention relates to novel phthalocyanines and their use as IR-absorbers, in particular in transparent thermoplastic or crosslinkable polymers. A further aspect of the invention is a composition of these phthalocyanines and thermoplastic or crosslinkable polymers and an architectural or automotive glazing containing these phthatolcyanines.
Claims7
A transparent or translucent composition comprising
- a) a compound of formula (I)
- wherein
- R is hydrogen, C1-C18alkyl, C3-C18alkyl interrupted by one or more O atoms, benzyl or cyclohexyl;
- R′ is hydrogen or C1-C18alkyl;
- or R and R′ together with the nitrogen atom to which they are bonded form a morpholine group;
- and
- M is Mn, Zn, V(O), Ti(O), Si, Al, Sn, Cu or Co;
- which is dispersed in
- b) a thermoplastic or crosslinkable polymer and
- where the composition is in the form of a sheet or film of a thickness of less than 10 mm and
- where the sheet or film exhibits a full solar radiation (340-1800 nm) transmittance of less than 60%,
- a full visible light (400-800 nm) transmittance of more than 75% and
- a haze of less than 1% as measured according to ASTM D-1003.
10 more elements
Dependencies are inferred from the claim text.