Composite particles, process for producing the same, and pigment, paint and resin composition using the same

1. A rubber or resin composition comprising:

a base material for rubber or resin composition, and

a pigment comprising the composite particles having an average particle diameter of 0.001 to 10.0 tim and a liaht resistance (ΔE* value) of not more than 5.0, comprising:

white inorganic particles as core particles;

a gluing agent coating layer formed on surface of said white inorganic particle; and

an organic pigment coat formed onto said gluing agent coating layer in an amount of from 1 to 500 parts by weight based on 100 parts by weight of said white inorganic particles.

2. A rubber or resin composition according to claim 1 , wherein the amount of said pigment is 0.05 to 200 parts by weight based on 100 parts by weight of said base material for rubber or resin composition.

3. A rubber or resin composition according to claim 1 , wherein said gluing agent is an organosilicon compound, a coupling agent, an oligomer compound or a polymer compound.

4. A rubber or resin composition according to claim 3 , wherein said organosilicon compound is at least one organosilicon compound selected from the group consisting of:

(1) organosilane compounds obtainable from alkoxysilane compounds,

(2) polysiloxanes or modified polysiloxanes, and

(3) fluoroalkyl organosilane compounds obtainable form fluoroalkylsilane compounds.

5. A rubber or resin composition according to claim 3 , wherein said coupling agent is at least one selected from the group consisting of a silane-based coupling agent, a titanate-based coupling agent, an aluminate-based coupling agent and a zirconate-based coupling agent.

6. A rubber or resin composition according to claim 1 , wherein said white inorganic particles are a white pigment, a pearl pigment or an extender pigment.

7. A rubber or resin composition according to claim 1 , wherein said white inorganic particles as core particles are particles each having on at least a part of the surface thereof, a coating layer comprising at least one compound selected from the group consisting of hydroxides of aluminum, oxides of aluminum, hydroxides of silicon and oxides of silicon.

8. A rubber or resin composition according to claim 1 , wherein said organic pigment is an organic red-based pigment, an organic blue-based pigment, an organic yellow-based pigment or an organic green-based pigment.

9. A rubber or resin composition according to claim 1 , wherein said composite particles have a BET specific surface area value of 1.0 to 500 m 2 /g.

10. A rubber or resin composition according to claim 1 , wherein said composite particles have a tinting strength of not less than 110%.

11. A rubber or resin composition according to claim 1 , wherein the amount of said organic pigment coat formed onto said gluing agent coating layer is from 1 to 300 parts by weight based on 100 parts by weight of said white inorganic particles.

12. A rubber or resin composition according to claim 1 , wherein the amount of the gluing agent coating layer comprising the organosilicon compound or the silane-based coupling agent is 0.02 to 5.0% by weight, calculated as Si, based on the weight of the gluing agent-coated white inorganic particles, and the amount of the gluing agent coating layer comprising the titanate-based coupling agent, the aluminate-based coupling agent, the zirconate-based coupling agent, the oligomer or the polymer compound is 0.01 to 15.0% by weight, calculated as C, based on the weight of the gluing agent-coated white inorganic particles.

13. A rubber or resin composition comprising:

a base material for rubber or resin composition, and

a pigment comprising the composite particles having an average particle diameter of 0.00 1 to 10.0 μm and a light resistance (ΔE* value) of not more than 5.0, comprising:

white inorganic particles as core particles;

a gluing agent coating layer formed on surface of said white inorganic particle, comprising at least one selected from the group consisting of a silane-based coupling agent, a titanate-based coupling agent, an aluminate-based coupling agent, a zirconate-based coupling agent, an oligomer compound, a polymer compound and an organosilicon compound selected from the group consisting of:

(1) organosilane compounds obtainable from alkoxysilane compounds,

(2) polysiloxanes or modified polysiloxanes, and

(3) fluoroalkyl organosilane compounds obtainable form fluoroalkylsilane compounds; and

an organic pigment coat formed on said coating layer in an amount of from 1 to 500 parts by weight based on 100 parts by weight of said white inorganic particles.

14. A rubber or resin composition according to claim 13 , wherein the amount of said pigment is 0.05 to 200 parts by weight based on 100 parts by weight of said base material for rubber or resin composition.

15. A rubber or resin composition according to claim 13 , wherein said white inorganic particles are a white pigment, a pearl pigment or an extender pigment.

16. A rubber or resin composition according to claim 13 , wherein said white inorganic particles as core particles are particles each having on at least a part of the surface thereof, a coating layer comprising at least one compound selected from the group consisting of hydroxides of aluminum, oxides of aluminum, hydroxides of silicon and oxides of silicon.

17. A rubber or resin composition according to claim 13 , wherein said organic pigment is an organic red-based pigment, an organic blue-based pigment, an organic yellow-based pigment or an organic green-based pigment.

18. A rubber or resin composition according to claim 13 , wherein the amount of said organic pigment coat formed onto said gluing agent coating layer is from 1 to 300 parts by weight based on 100 parts by weight of said white inorganic particles.

19. A rubber or resin composition according to claim 13 , wherein the amount of the gluing agent coating layer comprising the organosilicon compound or the silane-based coupling agent is 0.02 to 5.0% by weight, calculated as Si, based on the weight of the gluing agent-coated white inorganic particles, and the amount of the gluing agent coating layer comprising the titanate-based coupling agent, the aluminate-based coupling agent, the zirconate-based coupling agent, the oligomer compound or the polymer compound is 0.01 to 15.0% by weight, calculated as C, based on the weight of the gluing agent-coated white inorganic particles.

20. A rubber or resin composition according to claim 13 , wherein said composite particles have a BET specific surface area value of 1.0 to 500 m 2 /g.

21. A rubber or resin composition according to claim 13 , wherein said composite particles have a tinting strength of not less than 110%.

22. A rubber or resin composition comprising:

a base material for rubber or resin composition, and

a pigment comprising the composite particles having an average particle diameter of 0.001 to 10.0 μm and a light resistance (ΔE* value) of not more than 5.0, comprising:

white inorganic particles as core particles;

a coating layer formed on surface of said white inorganic particle, comprising at least one organosilicon compound selected from the group consisting of:

(1) organosilane compounds obtainable from alkoxysilane compounds, and

(2) polysiloxanes or modified polysiloxanes; and

an organic pigment coat formed on the coating layer comprising said organosilicon compound in an amount of from 1 to 100 parts by weight based on 100 parts by weight of said white inorganic particles.

23. A rubber or resin composition according to claim 22 , wherein the amount of said pigment is 0.05 to 200 parts by weight based on 100 parts by weight of said base material for rubber or resin composition.

24. A rubber or resin composition according to claim 22 , wherein said white inorganic particles as core particles are particles each having on at least a part of the surface thereof, a coating layer comprising at least one compound selected from the group consisting of hydroxides of aluminum, oxides of aluminum, hydroxides of silicon and oxides of silicon.

25. A rubber or resin composition according to claim 22 , wherein said organic pigment is an organic red-based pigment, an organic blue-based pigment, an organic yellow-based pigment or an organic green-based pigment.

26. A rubber or resin composition according to claim 22 , wherein the amount of the coating layer comprising said organosilicon compound is 0.02 to 5.0% by weight, calculated as Si, based on the weight of the coated white inorganic particles.

27. A rubber or resin composition according to claim 22 , wherein said composite particles have a BET specific surface area value of 1.0 to 500 m 2 /g.

28. A rubber or resin composition according to claim 22 , wherein said composite particles have a tinting strength of not less than 115%.

29. A rubber or resin composition comprising:

a base material for rubber or resin composition, and

a pigment comprising the composite particles having an average particle diameter of 0.001 to 10.0 μm and a light resistance (ΔE* value) of not more than 5.0, comprising:

white inorganic particles as core particles;

a gluing agent coating layer formed on surface of said white inorganic particle; and

at least two colored adhesion layers composed of an organic pigment, formed on said coating layer through a gluing agent,

the amount of the organic pigment being 1 to 500 parts by weight based on 100 parts by weight of said white inorganic particles.

30. A rubber or resin composition according to claim 29 , wherein the amount of said pigment is 0.05 to 200 parts by weight based on 100 parts by weight of said base material for rubber or resin composition.

31. A rubber or resin composition according to claim 29 , wherein said gluing agent is an organosilicon compound, a coupling agent, an oligomer compound or a polymer compound.

32. A rubber or resin composition according to claim 31 , wherein said organosilicon compound is at least one organosilicon compound selected from the group consisting of:

(1) organosilane compounds obtainable from alkoxysilane compounds,

(2) polysiloxanes or modified polysiloxanes, and

(3) fluoroalkyl organosilane compounds obtainable form fluoroalkylsilane compounds.

33. A rubber or resin composition according to claim 31 , wherein said coupling agent is at least one selected from the group consisting of a silane-based coupling agent, a titanate-based coupling agent, an aluminate-based coupling agent and a zirconate-based coupling agent.

34. A rubber or resin composition according to claim 29 , wherein said white inorganic particles are a white pigment, a pearl pigment or an extender pigment.

35. A rubber or resin composition according to claim 29 , wherein said white inorganic particles as core particles are particles each having on at least a part of the surface thereof, a coating layer comprising at least one compound selected from the group consisting of hydroxides of aluminum, oxides of aluminum, hydroxides of silicon and oxides of silicon.

36. A rubber or resin composition according to claim 29 , wherein said organic pigment is an organic red-based pigment, an organic blue-based pigment, an organic yellow-based pigment or an organic green-based pigment.

37. A rubber or resin composition according to claim 29 , wherein said composite particles have a BET specific surface area value of 1.0 to 500 m 2 /g.

38. A rubber or resin composition according to claim 29 , wherein said composite particles have a tinting strength of not less than 110%.

39. A rubber or resin composition according to claim 29 , wherein the amount of said organic pigment coat formed onto said gluing agent coating layer is from 1 to 300 parts by weight based on 100 parts by weight of said white inorganic particles.

40. A rubber or resin composition according to claim 29 , wherein the amount of the gluing agent coating layer comprising the organosilicon compound or the silane-based coupling agent is 0.02 to 5.0% by weight, calculated as Si, based on the weight of the gluing agent-coated white inorganic particles, and the amount of the gluing agent coating layer comprising the titanate-based coupling agent, the aluminate-based coupling agent, the zirconate-based coupling agent, the oligomer compound or the polymer compound is 0.01 to 15.0% by weight, calculated as C, based on the weight of the gluing agent-coated white inorganic particles.

41. A rubber or resin composition comprising:

a base material for rubber or resin composition, and

a pigment comprising the composite particles having an average particle diameter of 0.001 to 10.0 μm and a light resistance (ΔE* value) of not more than 5.0, comprising:

white inorganic particles as core particles;

a gluing agent coating layer formed on surface of said white inorganic particle, comprising at least one selected from the group consisting of a silane-based coupling agent, a titanate-based coupling agent, an aluminate-based coupling agent, a zirconate-based coupling agent, an oligomer compound, a polymer compound and an organosilicon compound selected from the group consisting of:

(1) organosilane compounds obtainable from alkoxysilane compounds,

(2) polysiloxanes or modified polysiloxanes, and

(3) fluoroalkyl organosilane compounds obtainable form fluoroalkylsilane compounds; and

at least two colored adhesion layers composed of an organic pigment, formed on said coating layer through a gluing agent comprising at least one selected from the group consisting of a silane-based coupling agent, a titanate-based coupling agent, an aluminate-based coupling agent, a zirconate-based coupling agent, an oligomer compound, a polymer compound and an organosilicon compound selected from the group consisting of: (1) organosilane compounds obtainable from alkoxysilane compounds, (2) polysiloxanes or modified polysiloxanes, and (3) fluoroalkyl organosilane compounds obtainable form fluoroalkylsilane compounds,

the amount of the organic pigment being 1 to 500 parts by weight based on 100 parts by weight of said white inorganic particles.

42. A rubber or resin composition according to claim 41 , wherein the amount of said pigment is 0.05 to 200 parts by weight based on 100 parts by weight of said base material for rubber or resin composition.

43. A rubber or resin composition according to claim 41 , wherein said white inorganic particles are particles each having on at least a part of the surface thereof, a coating layer comprising at least one compound selected from the group consisting of hydroxides of aluminum, oxides of aluminum, hydroxides of silicon and oxides of silicon.

44. A rubber or resin composition according to claim 41 , wherein said organic pigment is an organic red-based pigment, an organic blue-based pigment, an organic yellow-based pigment or an organic green-based pigment.

45. A rubber or resin composition according to claim 41 , wherein the amount of the gluing agent coating layer comprising the organosilicon compound or the silane-based coupling agent is 0.02 to 5.0% by weight, calculated as Si, based on the weight of the gluing agent-coated white inorganic particles, and the amount of the gluing agent coating layer comprising the titanate-based coupling agent, the aluminate-based coupling agent, the zirconate-based coupling agent, the oligomer compound or the polymer compound is 0.01 to 15.0% by weight, calculated as C, based on the weight of the gluing agent-coated white inorganic particles.

46. A rubber or resin composition according to claim 41 , wherein the amount of said organic pigment coat formed onto said gluing agent coating layer is from 1 to 300 parts by weight based on 100 parts by weight of said white inorganic particles.

47. A rubber or resin composition according to claim 41 , wherein said composite particles have a BET specific surface area value of 1.0 to 500 m 2 /g.

48. A rubber or resin composition according to claim 41 , wherein said composite particles have a tinting strength of not less than 115%.

49. A rubber or resin composition comprising:

a base material for rubber or resin composition, and

a pigment comprising the composite particles having an average particle diameter of 0.001 to 0.5 μm and a light resistance (ΔE* value) of not more than 5.0, comprising:

extender pigment particles as core particles;

a gluing agent coating layer formed on surface of said extender pigment particle, comprising an organosilicon compound, a coupling agent, an oligomer compound or a polymer compound; and

an organic pigment coat formed on the gluing agent coating layer in an amount of from 1 to 500 parts by weight based on 100 parts by weight of said extender pigment particles.

50. A rubber or resin composition according to claim 49 , wherein the amount of said pigment is 0.05 to 200 parts by weight based on 100 parts by weight of said base material for rubber or resin composition.

51. A rubber or resin composition according to claim 49 , wherein the average particle diameter thereof is 0.001 to 0.3 μm.

52. A rubber or resin composition according to claim 49 , wherein said extender pigment particles as core particles are particles each having on at least a part of the surface thereof, a coating layer comprising at least one compound selected from the group consisting of hydroxides of aluminum, oxides of aluminum, hydroxides of silicon and oxides of silicon.

53. A rubber or resin composition according to claim 49 , wherein said organic pigment is an organic red-based pigment, an organic blue-based pigment, an organic yellow-based pigment or an organic green-based pigment.

54. A rubber or resin composition according to claim 49 , wherein the amount of the gluing agent coating layer comprising the organosilicon compound or the silane-based coupling agent is 0.02 to 5.0% by weight, calculated as Si, based on the weight of the gluing agent-coated extender pigment particles, and the amount of the gluing agent coating layer comprising the titanate-based coupling agent, the aluminate-based coupling agent, the zirconate-based coupling agent, the oligomer compound or the polymer compound is 0.01 to 15.0% by weight, calculated as C, based on the weight of the gluing agent-coated extender pigment particles.

55. A rubber or resin composition according to claim 49 , wherein the amount of said organic pigment coat formed onto said gluing agent coating layer is from 1 to 300 parts by weight based on 100 parts by weight of said extender pigment.

56. A rubber or resin composition according to claim 49 , wherein said composite particles have a BET specific surface area value of 1.0 to 500 m 2 /g.

57. A rubber or resin composition according to claim 49 , wherein said composite particles have a tinting strength of not less than 115%.

58. A pigment dispersion for water-based paint comprising:

100 parts by weight of a pigment dispersion base material for water-based paint; and

5 to 1,000 parts by weight of the pigment selected from any one of the following composite particles (I) to (VI):

(I) composite particles having an average particle diameter of 0.00 1 to 10.0 μm and a light resistance (ΔE* value) of not more than 5.0, comprising:

white inorganic particles as core particles;

a gluing agent coating layer formed on surface of said white inorganic particle; and

an organic pigment coat formed onto said gluing agent coating layer in an amount of from 1 to 500 parts by weight based on 100 parts by weight of said white inorganic particles;

(II) composite particles having an average particle diameter of 0.00 1 to 10.0 μm and a light resistance (ΔE* value) of not more than 5.0, comprising:

white inorganic particles as core particles;

a gluing agent coating layer formed on surface of said white inorganic particle, comprising at least one selected from the group consisting of a silane-based coupling agent, a titanate-based coupling agent, an aluminate-based coupling agent, a zirconate-based coupling agent, an oligomer compound, a polymer compound and an organosilicon compound selected from the group consisting of:

(1) organosilane compounds obtainable from alkoxysilane compounds,

(2) polysiloxanes or modified polysiloxanes, and

(3) fluoroalkyl organosilane compounds obtainable form fluoroalkylsilane compounds; and

an organic pigment coat formed on said coating layer in an amount of from 1 to 500 parts by weight based on 100 parts by weight of said white inorganic particles;

(III) composite particles having an average particle diameter of 0.00 1 to 10.0 μm and a light resistance (ΔE* value) of not more than 5.0, comprising:

white inorganic particles as core particles;

a coating layer formed on surface of said white inorganic particle, comprising at least one organosilicon compound selected from the group consisting of:

(1) organosilane compounds obtainable from alkoxysilane compounds, and

(2) polysiloxanes or modified polysiloxanes; and

an organic pigment coat formed on the coating layer comprising said organosilicon compound in an amount of from 1 to 100 parts by weight based on 100 parts by weight of said white inorganic particles;

(IV) composite particles having an average particle diameter of 0.00 1 to 10.0 μm and a light resistance (ΔE* value) of not more than 5.0, comprising:

white inorganic particles as core particles;

a gluing agent coating layer formed on surface of said white inorganic particle; and

at least two colored adhesion layers composed of an organic pigment, formed on said coating layer through a gluing agent,

the amount of the organic pigment being 1 to 500 parts by weight based on 100 parts by weight of said white inorganic particles;

(V) composite particles having an average particle diameter of 0.00 1 to 10.0 μm and a liaht resistance (AE* value) of not more than 5.0, comprising:

white inorganic particles as core particles;

a gluing agent coating layer formed on surface of said white inorganic particle, comprising at least one selected from the group consisting of a silane-based coupling agent, a titanate-based coupling agent, an aluminate-based coupling agent, a zirconate-based coupling agent, an oligomer compound, a polymer compound and an organosilicon compound selected from the group consisting of:

(1) organosilane compounds obtainable from alkoxysilane compounds,

(2) polysiloxanes or modified polysiloxanes, and

(3) fluoroalkyl organosilane compounds obtainable form fluoroalkylsilane compounds; and

at least two colored adhesion layers composed of an organic pigment, formed on said coating layer through a gluing agent comprising at least one selected from the group consisting of a silane-based coupling agent, a titanate-based coupling agent, an aluminate-based coupling agent, a zirconate-based coupling agent, an oligomer compound, a polymer compound and an organosilicon compound selected from the group consisting of: (1) organosilane compounds obtainable from alkoxysilane compounds, (2) polysiloxanes or modified polysiloxanes, and (3) fluoroalkyl organosilane compounds obtainable form fluoroalkylsilane compounds, the amount of the organic pigment being 1 to 500 parts by weight based on 100 parts by weight of said white inorganic particles; and

(VI) composite particles having an average particle diameter of 0.00 1 to 0.5 μm and a light resistance (ΔE* value) of not more than 5.0, comprising:

extender pigment particles as core particles;

a gluing agent coating layer formed on surface of said extender pigment particle, comprising an organosilicon compound, a coupling agent, an oligomer compound or a polymer compound; and

an organic pigment coat formed on the gluing agent coating layer in an amount of from 1 to 500 parts by weight based on 100 parts by weight of said extender pigment particles.