1. An anatase white pigment, comprising:
an anatase white pigment having a crystallite size of more than 100 nm and doped in compensatory mode with a trivalent cation selected from the group consisting of Al, Ga, In and Ce, and a further cation selected from the group consisting of a monovalent cation selected from Li, Na and K and a pentavalent cation selected from the group consisting of Sb and Nb, wherein the further cation is present in an amount of less than 1.5 mol % with respect to Ti in the base substance.
2. An anatase white pigment according to claim 1 wherein the TiO2 is present therein at least 98.5% in the anatase modification and the remainder as rutile and the molar ratio of the trivalent cation to the second cation is between 0.3 and 6.0.
3. An anatase white pigment, comprising:
an anatase pigment having a crystallite size of more than 100 nm and doped with a trivalent cation selected from the group consisting of Ga and In in an amount of 0.05-0.5 mol % relative to Ti in the base substance and there is one respective defect in the anion lattice for charge compensation per two incorporated trivalent cations.
4. An anatase white pigment according to claim 1 wherein the anatase pigment is inorganically andor organically surface-modified.
5. An anatase white pigment according to claim 4 wherein the anatase white pigment is inorganically surface modified by a treatment with Al2(SO4)3 solution, NaAIO2 solution, waterglass or phosphate salt solutions or mixtures thereof.
6. An anatase white pigment according to claim 4 wherein the anatase pigment is organically surface-modified by treatment with trialkylolalkanes or silicone oils.
7. An anatase white pigment according to claim 1, wherein its carbon black undertone is at least 13.
8. An anatase white pigment according to claim 7 wherein its b* value in polyamide 6 is between \u22122.5 and +3.5.
9. An anatase white pigment according to claim 1, wherein it imparts to polyamide 6 in brief weathering a service life of at least 80 h, determined from the drop in the 60\xb0 gloss.
10. An anatase white pigment according to claim 1 having an abrasiveness of a maximum of 20 mg determined in accordance with the Cu bar abrasion method.
11. A process for the production of the anatase white pigment according to claim 1, comprising adding the cations used for doping in the form of their water-soluble salts or their solid hydroxides, oxyhydroxides or oxides to m-titanic acid in production using the sulphate method.
12. (canceled)
13. A process according to claim 11, wherein the cations used for doping have a mean particle size of below 2 \u03bcm.
14. An additive comprising a anatase white pigment according to claim 1.
15. A polymer or plastic comprising an additive according to claim 14.
16. A polymer or plastic according to claim 15 comprising synthetic fibres, films, foils, shaped parts, or composite materials containing polymers.
17. A paint or lacquer comprising an additive according to claim 14.
18. A paint or lacquer according to claim 17 comprising a UV-hardening lacquer.
19. An anatase white pigment according to claim 3 wherein the anatase pigment is inorganically andor organically surface-modified.
20. A process for the production of the anatase white pigment according to claim 3, comprising adding the cations used for doping in the form of their water-soluble salts or their solid hydroxides, oxyhydroxides or oxides to m-titanic acid in production using the sulphate method.
21. An additive comprising a anatase white pigment according to claim 3.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. An alkylated-base unleaded aviation gasoline (Avgas) formulation for piston driven aircraft, wherein said formulation consists of, in percent volume, between 12 and 18 base alkylate, between 28 and 42 super-alkylate, between 20 and 30 toluene, between 3 and 5 toluidine isomer blend, between 0 and 5 ethyl alcohol, between 10 and 20 C5 cut, and between 5 and 10 triptane, all components at amounts adding up to a total of 100%, wherein the formulation has a motor octane number not less than 94.4,
the super-alkylate is a distillation cut of the base alkylate containing between 75 and 78% by volume isooctane, and
the C5 cut has a boiling point between 35.5\xb0 C. and 48\xb0 C.
2. An alkylated-base unleaded aviation gasoline formulation according to claim 1, wherein the formulation is prepared so that its motor octane number (MON) is 102.4.
3. An alkylated-base unleaded aviation gasoline formulation according to claim 1, wherein the formulation leads to the specification of 100130 classes of gasoline fuel for light aviation.