IP Library › Granted Patent US 8,916,636
Granted Patent B2
US 8,916,636 · App. 13/826,764 · Granted Dec 23, 2014

Basecoat composition and associated paperboard structure

Inventors: Steven G. Bushhouse (New Kent, VA); Gary P. Fugitt (Rockville, VA); Sven S. Arenander (Richmond, VA)
Assignee: MeadWestvaco Corporation
C08K3/26C08K3/346
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Quick Facts
Patent No.
US 8,916,636
App. No.
13/826,764
Granted
Dec 23, 2014
Kind
B2
Abstract

A basecoat composition including a carrier component and a pigment component dispersed in the carrier component, the pigment component including all pigments in the basecoat composition, wherein the pigment component has a median particle size between about 3 and about 8 micrometers, and wherein at most about 15 percent by weight of the pigment component has a particle size smaller than 1 micrometer.

Claims (37)

1. A basecoat composition comprising:

a carrier component; and

a pigment component dispersed in said carrier component, said pigment component comprising all pigments in said basecoat composition,

wherein said pigment component has a median particle size between about 3 and about 8 micrometers, and

wherein at most about 15 percent by weight of said pigment component has a particle size smaller than 1 micrometer, and

wherein at most about 20 percent by weight of said pigment component has a particle size greater than 8 micrometers.

2. The basecoat composition of claim 1 wherein said median particle size is between about 3 and about 7 micrometers.

3. The basecoat composition of claim 1 wherein said median particle size is between about 3 and about 6 micrometers.

4. The basecoat composition of claim 1 wherein said median particle size is between about 4 and about 5 micrometers.

5. The basecoat composition of claim 1 wherein at most about 14 percent by weight of said pigment component has a particle size smaller than 1 micrometer.

6. The basecoat composition of claim 1 wherein at most about 13 percent by weight of said pigment component has a particle size smaller than 1 micrometer.

7. The basecoat composition of claim 1 wherein at most about 12 percent by weight of said pigment component has a particle size smaller than 1 micrometer.

8. The basecoat composition of claim 1 wherein at most about 11 percent by weight of said pigment component has a particle size smaller than 1 micrometer.

9. The basecoat composition of claim 1 wherein at most about 10 percent by weight of said pigment component has a particle size smaller than 1 micrometer.

10. The basecoat composition of claim 1 wherein at most about 15 percent by weight of said pigment component has a particle size greater than 8 micrometers.

11. The basecoat composition of claim 1 wherein at most about 10 percent by weight of said pigment component has a particle size greater than 8 micrometers.

12. The basecoat composition of claim 1 wherein said pigment component has a steepness index of at most about 1.3.

13. The basecoat composition of claim 1 wherein said pigment component has a steepness index of at most about 1.2.

14. The basecoat composition of claim 1 wherein said pigment component has a steepness index of at most about 1.1.

15. The basecoat composition of claim 1 wherein said pigment component has a steepness index of at most about 1.0.

16. The basecoat composition of claim 1 wherein said pigment component comprises calcium carbonate.

17. The basecoat composition of claim 1 wherein said pigment component comprises precipitated calcium carbonate.

18. The basecoat composition of claim 17 wherein said precipitated calcium carbonate comprises at least 50 percent by weight of said pigment component.

19. The basecoat composition of claim 17 wherein said precipitated calcium carbonate comprises at least 70 percent by weight of said pigment component.

20. The basecoat composition of claim 17 wherein said precipitated calcium carbonate comprises at least 80 percent by weight of said pigment component.

21. The basecoat composition of claim 17 wherein said pigment component consists essentially of said precipitated calcium carbonate.

22. The basecoat composition of claim 17 wherein said pigment component further comprises ground calcium carbonate.

23. The basecoat composition of claim 22 wherein said ground calcium carbonate comprises at most 40 percent by weight of said pigment component.

24. The basecoat composition of claim 22 wherein said ground calcium carbonate comprises at most 20 percent by weight of said pigment component.

25. The basecoat composition of claim 17 wherein said pigment component further comprises clay.

26. The basecoat composition of claim 1 wherein said pigment component comprises a blend of pigments.

27. The basecoat composition of claim 1 wherein said pigment component consists essentially of inorganic pigments.

28. The basecoat composition of claim 1 with the proviso that said pigment component is substantially free of platy pigments.

29. The basecoat composition of claim 1 wherein said carrier component comprises at least 30 percent of said basecoat composition.

30. The basecoat composition of claim 1 further comprising a binder in admixture with said carrier component and said pigment component.

31. The basecoat composition of claim 1 further comprising a thickener in admixture with said carrier component and said pigment component.

32. The basecoat composition of claim 1 , wherein said pigment component comprises ground calcium carbonate.

Assignments (2)
CHANGE OF NAME Recorded Mar 22, 2018
From: MEADWESTVACO CORPORATION
To: WESTROCK MWV, LLC
Reel/Frame 045662/0915 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 12, 2013
From: BUSHHOUSE, STEVEN G.; FUGITT, GARY P.; ARENANDER, SVEN S.
To: MEADWESTVACO CORPORATION
Reel/Frame 030206/0749 →
Continuity (1)
Related Publication 20140275387A1 · Sep 18, 2014