Compositions and methods and uses relating thereto
AssigneeKeeling & Walker Limited
InventorsDieter Guhl, Anna Dobrowolska
Life of this patent
Estimating the term…
Abstract
A material of formula (I) M1aM2bWcOd(P(O)nRm)e (I) wherein each of M1 and M2 is independently ammonium or a metal cation; a is 0.01 to 0.5; b is 0 to 0.5; c is 1; d is 2.5 to 3; e is 0.01 to 0.75; n is 1, 2 or 3; m is 1, 2 or 3; and R is an optionally substituted hydrocarbyl group.
Claims14
A method of preparing a material of formula (I)
- M1aM2bWcOd(P(O)nRm)e (I)
- wherein each of M1 and M2 is independently ammonium or a metal cation;
- a is 0.01 to 0.5;
- b is 0 to 0.5;
- c is 1;
- d is 2.5 to 3;
- e is 0.01 to 0.75;
- n is 1, 2 or 3;
- m is 1, 2 or 3;
- and R is an optionally substituted hydrocarbyl group;
- the method comprising the steps of:
- (i) admixing:
- (a) a source of dopant species M1;
- (b) a source of tungsten;
- (ii) adding (c) an organophosphorus compound;
- and
- (iii) heating a mixture of (a) and (b) in a reducing atmosphere.
A polymer precursor composition comprising:
- a material of formula (I)
- M1aM2bWcOd(P(O)nRm)e (I)
- wherein each of M1 and M2 is independently ammonium or a metal cation;
- a is 0.01 to 0.5;
- b is 0 to 0.5;
- c is 1;
- d is 2.5 to 3;
- e is 0.01 to 0.75;
- n is 1, 2 or 3;
- m is 1, 2 or 3;
- and R is an optionally substituted hydrocarbyl group;
- and
- one or more monomers.
A polymer film for protection against solar radiation for domestic windows or automotive glazing comprising particles of a material of formula (I)
- M1aM2bWcOd(P(O)nRm)e (I)
- wherein each of M1 and M2 is independently ammonium or a metal cation;
- a is 0.01 to 0.5;
- b is 0 to 0.5;
- c is 1;
- d is 2.5 to 3;
- e is 0.01 to 0.75;
- n is 1, 2 or 3;
- m is 1, 2 or 3;
- and R is an optionally substituted hydrocarbyl group.
A window that is at least partially covered by a composition comprising particles of a material of formula (I)
- M1aM2bWcOd(P(O)nRm)e (I)
- wherein each of M1 and M2 is independently ammonium or a metal cation;
- a is 0.01 to 0.5;
- b is 0 to 0.5;
- c is 1;
- d is 2.5 to 3;
- e is 0.01 to 0.75;
- n is 1, 2 or 3;
- m is 1, 2 or 3;
- and R is an optionally substituted hydrocarbyl group.
A method of directly producing a transparent sheet, film, plate or other workpiece comprising admixing a material of formula (I) with a polymer in an injection moulding process
- M1aM2bWcOd(P(O)nRm)e (I)
- wherein each of M1 and M2 is independently ammonium or a metal cation;
- a is 0.01 to 0.5;
- b is 0 to 0.5;
- c is 1;
- d is 2.5 to 3;
- e is 0.01 to 0.75;
- n is 1, 2 or 3;
- m is 1, 2 or 3;
- and R is an optionally substituted hydrocarbyl group.
Dependencies are inferred from the claim text.