Infrared absorbing composition, resin composition, interlayer for laminated glass, laminated body, laminated glass and building material
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United States of America Patent
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Issued Date -
Feb 22, 2007
app pub date -
Jul 28, 2004
filing date -
Jul 31, 2003
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Abandoned
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Abstract
An infrared-absorbing composition comprising a phosphoric acid ester compound including a phosphoric acid monoester represented by formula (1) below and a phosphoric acid diester represented by formula (2) below, and copper ion, wherein the ratio of the phosphoric acid monoester and the phosphoric acid diester is 30:70 to 74:26 as the molar ratio. wherein R.sup.1 and R.sup.2 each independently represent an ester bond-containing C4-18 group, a C4-18 alkyl group, a C4-18 alkenyl group or a C4-18 alkynyl group, with the proviso that the multiple R.sup.2 groups may be the same or different.
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