Molded products made from artificial polymers with hybrid metal oxide particles

Claims

1. A method for producing a composition containing inclusions of hybrid metal oxide particles in a polymer, wherein the hybrid metal oxide particles are obtained by a method including forming liquid droplets from a dispersion of particles containing particles of a first metal oxide and particles of a second metal oxide; drying the liquid droplets to obtain dried particles containing a discrete matrix of particles of the first metal oxide with incorporations of particles of a second metal oxide; and heating the dried particles to obtain hybrid metal oxide particles containing a continuous matrix formed from particles of the first metal oxide with incorporations of an array of particles of the second metal oxide, wherein the hybrid is present in an amount of from 0.1 wt.% to about 40 wt.%.

2. The method according to claim 1, characterized in that the hybrid metal oxide particles are substantially non-porous.

3. The method according to claim 1, characterized in that heating the particles includes sintering or calcining the dried particles to form a continuous matrix by compacting the particles of the first metal oxide.

4. The method according to claim 1, characterized in that the liquid droplets additionally contain a binder, and wherein heating the dried particles promotes the formation of a continuous matrix of the binder and particles of the first metal oxide.

5. The method according to claim 4, characterized in that the binder contains a material selected from silicon dioxide, sodium silicate, magnesium silicate, calcium silicate, aluminum silicate, aluminum oxide hydroxide, sodium oxide, calcium carbonate, calcium aluminate, bentonite, kaolinite, montmorillonite and combinations thereof.

6. The method of claim 1, wherein the particles of the first metal oxide and the particles of the second metal oxide independently comprise a metal oxide selected from silicon dioxide, titanium dioxide, aluminum oxide, zirconium dioxide, cerium dioxide, iron oxides, zinc oxide, indium oxide, tin oxide, chromium oxide, and combinations thereof.

7. The method according to claim 1, characterized in that the particles of the first metal oxide contain titanium dioxide.

8. The method according to claim 1, characterized in that the particles of the first metal oxide have an average diameter from about 1 nm to about 120 nm.

9. The method according to claim 1, characterized in that the particles of the second metal oxide contain silicon dioxide.

10. The method according to claim 1, characterized in that the particles of the second metal oxide have an average diameter from about 50 nm to about 999 nm.

11. The method according to claim 1, characterized in that one or more of the particles of the first metal oxide or the particles of the second metal oxide contain a core-shell structure.

12. The method according to claim 1, characterized in that the particles of the second metal oxide are spherical particles of the metal oxide.

13. The method according to claim 1, characterized in that one or more of the particles of the first metal oxide or the particles of the second metal oxide contain surface functionalization.

14. The method according to claim 1, characterized in that the hybrid metal oxide particles contain surface functionalization.

15. The method according to one of paragraphs 13 or 14, characterized in that the surface functionalization includes silane.

16. The method according to claim 1, characterized in that the hybrid metal oxide particles have an average diameter from about 0.5 μm to about 100 μm.

17. The method according to claim 1, characterized in that the formation of liquid droplets is carried out using a microfluidic process.

18. The method according to claim 1, characterized in that the formation and drying of liquid droplets is carried out using a spray drying process.

19. The method according to claim 1, characterized in that the formation of liquid droplets is carried out using a vibration nozzle.

20. The method according to claim 1, characterized in that drying the droplets includes evaporation, microwave irradiation, drying in an oven, drying in a vacuum, drying in the presence of a desiccant, or a combination thereof.

21. The method according to claim 1, characterized in that the liquid dispersion is a water-based dispersion, an oil-based dispersion, a dispersion in an organic solvent, or a combination thereof.

22. The method according to claim 1, characterized in that the mass-mass ratio of the particles of the first metal oxide to the particles of the second metal oxide is from about 1 / 50 to about 10 / 1.

23. The method according to claim 1, characterized in that the mass-mass ratio of the particles of the first metal oxide to the particles of the second metal oxide is approximately 2 / 3.

24. The method according to claim 1, characterized in that the ratio of the particle size of the first metal oxide to the particle size of the second metal oxide is from 1 / 20 to 1 / 5.

25. The method according to claim 1, characterized in that the array of particles of the second metal oxide is an ordered array.

26. The method according to claim 1, characterized in that the array of particles of the second metal oxide is a disordered array.

27. A method for producing a composition containing inclusions of hybrid metal oxide particles in a polymer, wherein the hybrid metal oxide particles are obtained by a method comprising: forming liquid droplets from a dispersion of particles containing a sol-gel matrix of a first metal oxide precursor and particles containing a second metal oxide; and drying the liquid droplets and compacting the sol-gel matrix into a continuous matrix to produce hybrid metal oxide particles, wherein the hybrid metal oxide particles comprise an array of particles containing a second metal oxide, wherein the array of particles is embedded in the continuous matrix, wherein the hybrid particles are present in an amount of from 0.1 wt.% to about 40 wt.%.

28. The method according to claim 27, characterized in that said precursor contains one or more metal alkoxides or metal chlorides.

29. The method of claim 27, wherein said precursor is selected from tetraethyl orthosilicate (TEOS), tetramethyl orthosilicate (TMOS), titanium ethoxide, aluminum oxide hydroxide, zirconium hydroxide, zirconium acetate, zirconium oxychloride, aluminum chloride hexahydrate, aluminum chloride, cerium nitrate, cerium dioxide, zinc acetate, zinc acetate dehydrate, tin chloride dehydrate, and combinations thereof.

30. A method for producing a composition containing inclusions of hybrid particles of metal oxides in a polymer, wherein the hybrid particles are obtained by a method including: forming liquid droplets containing a first binder and a second binder; drying the liquid droplets to obtain dried particles containing a matrix of the first binder with a second binder embedded in the template; and heating the dried particles to produce hybrid metal oxide particles comprising a continuous matrix formed from a first binder with incorporations of an array of a second binder, wherein the hybrid particles are present in an amount of from 0.1 wt.% to about 40 wt.%.

31. The method of claim 30, wherein the first binder and the second binder are independently selected from sodium silicate, magnesium silicate, calcium silicate, aluminum silicate, aluminum oxide hydroxide, sodium oxide, calcium carbonate, calcium aluminate, bentonite, kaolinite, montmorillonite, and combinations thereof.

32. A composition obtained by the method according to any of paragraphs 1-31.

33. A composition comprising a polymer and hybrid metal oxide particles comprising a continuous matrix of a first metal oxide comprising an array of metal oxide particles embedded therein, wherein said metal oxide particles comprise a second metal oxide, wherein the hybrid metal oxide particles are substantially non-porous, wherein the hybrid particles are present in an amount of from 0.1 wt.% to about 40 wt.%.

34. The composition of claim 33, wherein the particles of the first metal oxide and the particles of the second metal oxide independently comprise a metal oxide selected from silicon dioxide, titanium dioxide, aluminum oxide, zirconium dioxide, cerium dioxide, iron oxides, zinc oxide, indium oxide, tin oxide, chromium oxide, and combinations thereof.

35. The composition according to claim 33, characterized in that the first metal oxide contains titanium dioxide.

36. The composition of claim 33, obtained from particles of metal oxides containing a first metal oxide, having an average diameter of from about 1 nm to about 120 nm.

37. The composition according to claim 33, characterized in that the second metal oxide contains silicon dioxide.

38. The composition according to claim 33, characterized in that the metal oxide particles have an average diameter from about 50 nm to about 999 nm.

39. The composition according to claim 33, characterized in that the metal oxide particles contain a core-shell structure.

40. The composition according to claim 33, characterized in that the metal oxide particles are spherical metal oxide particles.

41. The composition according to claim 33, characterized in that the metal oxide particles contain surface functionalization.

42. The composition according to claim 33, characterized in that the hybrid metal oxide particles contain surface functionalization on the outer surfaces of the hybrid metal oxide particles.

43. The composition according to claim 41, characterized in that the surface functionalization includes silane.

44. The composition of claim 33, wherein the hybrid metal oxide particles have an average diameter of from about 0.5 μm to about 100 μm.

45. The composition of claim 33, wherein the weight-to-weight ratio of the first metal oxide to the second metal oxide is from about 1 / 50 to about 10 / 1.

46. ​​The composition according to claim 33, characterized in that the mass-mass ratio of the first metal oxide to the second metal oxide is approximately 2 / 3.

47. The composition according to claim 33, characterized in that the array of metal oxide particles is an ordered array.

48. The composition according to claim 33, characterized in that the array of metal oxide particles is a disordered array.

49. A method for producing a composition comprising a polymer and hybrid metal oxide particles, wherein the hybrid particles are produced by a method comprising forming liquid droplets from a dispersion of particles containing a binder and metal oxide particles; and drying the liquid droplets to form hybrid metal oxide particles comprising a matrix of a binder and an array of metal oxide particles embedded in the matrix, wherein the hybrid particles are present in an amount of from 0.1 wt.% to about 40 wt.%.

50. The method of claim 49, wherein the method further comprises heating the hybrid metal oxide particles to compact the matrix and form a continuous matrix of the binder.

51. The method of claim 49 or 50, wherein the binder comprises a material selected from silicon dioxide, sodium silicate, magnesium silicate, calcium silicate, aluminum silicate, aluminum hydroxide, sodium oxide, calcium carbonate, calcium aluminate, bentonite, kaolinite, montmorillonite, and combinations thereof, and wherein the metal oxide particles comprise a metal oxide selected from silicon dioxide, titanium dioxide, aluminum oxide, zirconium dioxide, cerium dioxide, iron oxides, zinc oxide, indium oxide, tin oxide, chromium oxide, and combinations thereof.

52. Use of hybrid metal oxide particles as light stabilizers for a molded product made of artificial polymer, wherein the polymer is a synthetic polymer and / or a natural or synthetic elastomer and hybrid metal oxide particles were obtained by a method including forming liquid droplets from a dispersion of particles containing particles of a first metal oxide and particles of a second metal oxide; drying the liquid droplets to obtain dried particles comprising a discrete matrix of particles of the first metal oxide with embedded particles of the second metal oxide; and heating the dried particles to produce hybrid metal oxide particles comprising a continuous matrix formed from particles of a first metal oxide with embedded arrays of particles of a second metal oxide.

53. The use according to paragraph 52, characterized in that the hybrid particles are used in a concentration of from 0.01% by weight to 40.0% by weight, based on the weight of the molded product made from the synthetic polymer.

54. The use according to claim 52, characterized in that the hybrid particles are used in combination with one or more UV absorbers, wherein the UV absorbers are selected from the group consisting of 2-hydroxyphenyltriazines, benzotriazoles, 2-hydroxybenzophenones, oxalanilides, cinnamates and benzoates.

55. The use according to paragraph 54, characterized in that one or more UV radiation absorbers are used in a concentration of from 0.01% by weight to 40.0% by weight, based on the weight of the molded product made from an artificial polymer.

56. The use according to paragraph 52, characterized in that the molded article made from an artificial polymer contains a hindered amine-based light stabilizer (HALS).

57. The use according to paragraph 52, characterized in that the molded article made of artificial polymer is an article made of artificial polymer obtained by extrusion, casting, thread drawing, molding or calendering.

58. The use according to any of paragraphs 52-57, characterized in that the molded product made of artificial polymer is a film, pipe, cable, tape, sheet, container, frame, fiber or monofilament.

59. A molded article made from an artificial polymer, characterized in that the polymer is a synthetic polymer and / or a natural or synthetic elastomer and that the polymer contains hybrid particles as defined in this document.

60. A polymer composition obtained by extrusion, casting, spinning, molding or calendering, characterized in that the polymer is a synthetic polymer and / or a natural or synthetic elastomer and that the polymer contains hybrid particles as defined herein.