Heat-shielding agent composition

Abstract

This invention aims at providing a heat-shielding agent composition that maintains transparency and at the same time exhibits capability of blocking ultraviolet and infrared rays so that it produces a great heat-shielding effect. This invention is a heat-shielding agent composition comprising a transition metal salt hydroxide of the following formula and a precursor thereof. M 1 a [Al 1-x (M 2 1-y Fe(III) y ) x ] b A y B z (OH) n .mH 2 O   (1)

1 . A heat-shielding agent composition comprising a transition metal salt hydroxide of the following formula (1) or a precursor thereof,
   M 1   a [Al 1-x (M 2   1-y Fe(III) y ) x ] b A y B z (OH) n .mH 2 O   (1)
   wherein M 1  represents at least one monovalent or divalent cation selected from the group consisting of Ca 2+ , Na + , NH 4   + , K +  and H 3 O + , M 2  represents at least one transition metal ion selected from Zn 2+ , Cu 2+ , Mg 2+ , Mn 2+ , In 3+ , Sn 2+  and Ti 4+ , A represents an organic acid anion having 2 to 10 carbon atoms and containing 1 to 4 carboxyl groups in a molecule, B represents at least one inorganic acid anion selected from the group consisting of sulfate ion (SO 4   2− ), nitrate ion (NO 3   − ) and silicate ion (SiO 3   2− ), and a, b, m, n, x, y and z are 0.7≦a≦1.35, 2.7≦b≦3.3, 0≦m≦5, 4≦n≦7, 0≦x≦0.66, 0<y≦1.0 and 1.7≦z≦2.4.   
     
     
         2 . The heat-shielding agent composition of  claim 1 , which further contains a synthetic resin or a water-base emulsion resin. 
     
     
         3 . The heat-shielding agent composition of  claim 1 , which contains 0.1 to 50% by weight of the transition metal salt hydroxide of the formula (1) or a precursor thereof. 
     
     
         4 . A heat-shielding material comprising a substrate and a coating layer being formed thereon and containing the heat-shielding agent composition of  claim 1 . 
     
     
         5 . The heat-shielding material of  claim 4 , which is an infrared cut filter. 
     
     
         6 . The heat-shielding material of  claim 4 , which is an infrared reflector. 
     
     
         7 . A lighting fixture having the heat-shielding material of  claim 4 . 
     
     
         8 . A heating appliance having the heat-shielding material of  claim 4 . 
     
     
         9 . A heat-shielding method comprising the step of applying the heat-shielding agent composition of  claim 2  to an outer wall of a building. 
     
     
         10 . A method for preventing a room temperature from increasing by attaching the infrared cut filter of  claim 5  to a window glass. 
     
     
         11 . Heat-insulating clothes comprising the heat-shielding agent composition of  claim 1 .