Thermoplastic, polymeric materials providing high IR absorption, method for the production thereof, and use thereof
AssigneeSachtleben Chemie GmbH
InventorsBernd Hirthe, Kirsten Föhr, Thorsten Bier, Helke Sanger, Andrea Otremba, Michael Wedler
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Abstract
Thermoplastic polymeric materials with high IR absorption are described, containing at least one inorganic metal phosphate of the general formula Mex(PO4)y(OH)z, wherein Me consists of one or more elements from the group Cu, Fe, Mn, Sb, Zn, Ti, Ni, Co, V, Mg, Bi, Be, Al, Ce, Ba, Sr, Na, K, Ge, Ga, Ca, Cr, In or Sn, and wherein x and y are whole numbers and x=(1 . . . 18), y=(1 . . . 12) and z=(0.2 . . . 10), and the inorganic metal phosphate may optionally also contain water of crystallization.
Claims28
A thermoplastic polymeric material comprising at least one inorganic metal phosphate of the formula having a Sherrer crystallite size of from 0.001 to less than or equal to 2 μm, Mex(PO4)y(OH)z, wherein Me is an element selected from the group consisting of Cu, Fe, Mn, Sb, Zn, Ti, Ni, Co, V, Mg, Bi, Be, Al, Ce, Ba, Sr, Na, K, Ge, Ga, Ca, Cr, In and Sn, wherein the inorganic metal phosphate optionally contains a water of crystallization, wherein x and y are whole numbers;
- and
- x is from 1 to 18;
- y is from 1 to 1;
- and
- z is from 0.2 to 10, wherein the thermoplastic material has a high infrared absorption such that the transparency in the visible wavelength range of from 400 to 700 nm is not significantly impaired and the absorption in the wavelength range of from 700 to 1500 nm is significantly higher than in the visible range, and wherein if the inorganic metal phosphate is Ca3(PO4)2Ca(OH)2 it contains a water of crystallization.
A method for the preparation of thermoplastic polymeric materials with high IR absorption, containing at least one inorganic metal phosphate of the formula Mex(PO4)y(OH)z, which may optionally contain a water of crystallization wherein a solution of the relevant metal ion, or the relevant metal ions, and a solution of the relevant PO4 component in an aqueous medium are precipitated, the product obtained is dried and incorporated into a thermoplastic polymeric material, wherein if the inorganic metal phosphate is Ca3(PO4)2Ca (OH)2 it contains a water of crystallization, and wherein the inorganic metal phosphate has Scherrer crystallite sizes only of from 0.001 to 2 μm.
A thermoplastic polymeric material comprising a plastic and at least one inorganic metal phosphate selected from the group consisting of
- Ca3(PO4)2Ca(OH)2;
- Cu3(PO4)(OH)3;
- Cu5(PO4)2(OH)4;
- CuFe2(PO4)2(OH)2;
- (Cu,Zn)2,ZnPO4(OH)3.2(H2O);
- (Cu,Zn)5Zn(PO4)2(OH)6.(H2O);
- Cu3Al4(PO4)3(OH)9.4(H2O);
- CuAl3(PO4)4(OH)3.4(H2O);
- (Zn,Cu)Al6(PO4)4(OH)8.4(H2O);
- CuFe6(PO4)4(OH)8.4(H2O);
- CaCu6[(PO4)2(PO3OH)(OH)6].3(H2O);
- and
- Cu2Mg2(PO4)2(OH)2.5(H2O);
- wherein the inorganic metal phosphate has Scherrer crystallite sizes only of from 0.001 to 2 μm.
A thermoplastic polymeric material comprising at least one inorganic metal phosphate of the formula Mex(PO4)y(OH)z, wherein Me consists of one or more elements from the group Cu, Fe, Mn, Sb, Zn, Ti, Ni, Co, V, Mg, Bi, Be, Al, Ce, Ba, Sr, Na, K, Ge, Ga, Ca, Cr, In or Sn, wherein the inorganic metal phosphate optionally contains a water of crystallization, wherein x and y are whole numbers;
- and
- x is from 1 to 18;
- y is from 1 to 12;
- and
- z is from 0.2 to 10;
- wherein the inorganic metal phosphate is Ca3(PO4)2Ca(OH)2 and contains a water of crystallization;
- wherein the thermoplastic material has a high infrared absorption such that the transparency in the visible wavelength range of from 400 to 700 nm is not significantly impaired and the absorption in the wavelength range of from 700 to 1500 nm is significantly higher than in the visible range, and
- wherein the inorganic metal phosphate has Scherrer crystallite sizes ranging from 0.001 to less than or equal to 2 μm.
A method for the preparation of thermoplastic polymeric materials with high IR absorption, containing at least one inorganic metal phosphate of the formula Mex(PO4)y(OH)z, which may optionally contain a water of crystallization wherein a solution of the relevant metal ion, or the relevant metal ions, and a solution of the relevant PO4 component in an aqueous medium are precipitated, the product obtained is dried and incorporated into a thermoplastic polymeric material,
- wherein the inorganic metal phosphate is Ca3(PO4)2Ca (OH)2 and contains a water of crystallization;
- and
- wherein the inorganic metal phosphate has Scherrer crystallite sizes ranging from 0.001 to less than or equal to 2 μm.
Dependencies are inferred from the claim text.