US2012145040A1PendingUtilityA1

Basecoat and Associated Paperboard Structure

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Assignee: FUGITT GARY PPriority: Mar 21, 2008Filed: Feb 24, 2012Published: Jun 14, 2012
Est. expiryMar 21, 2028(~1.7 yrs left)· nominal 20-yr term from priority
Inventors:Gary P. FugittSteve G. BushhouseJason Richard HoganWei-Hwa Her
C01P 2004/20C09D 5/028C01P 2004/54G01F 17/00C09C 1/42C09D 17/004D21H 17/67D21H 11/04D21H 19/36D21H 19/385D21H 19/40D21H 17/63D21H 23/30D21H 19/44C09C 1/021D21H 25/005D21H 17/69D21H 17/675Y10T428/24901C01P 2004/61Y10T428/25D21H 19/38C09C 1/0081
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Claims

Abstract

A basecoat including a pigment blend that includes a ground calcium carbonate component and a hyperplaty clay component, wherein the ground calcium carbonate component has a coarse particle size distribution, and wherein the hyperplaty clay component has an average aspect ratio of at least about 40:1.

Claims

exact text as granted — not AI-modified
1 . A basecoat comprising a pigment blend including a ground calcium carbonate component and a hyperplaty clay component, wherein at most about 60 percent of said ground calcium carbonate component has a particle size smaller than 2 microns, and wherein said hyperplaty clay component has an average aspect ratio of at least about 40:1. 
     
     
         2 . The basecoat of  claim 1  wherein said average aspect ratio of said hyperplaty clay component is at least about 50:1. 
     
     
         3 . The basecoat of  claim 1  wherein said average aspect ratio of said hyperplaty clay component is at least about 70:1. 
     
     
         4 . The basecoat of  claim 1  wherein said average aspect ratio of said hyperplaty clay component is at least about 90:1. 
     
     
         5 . The basecoat of  claim 1  wherein at most about 35 percent of said ground calcium carbonate component has a particle size smaller than 2 microns. 
     
     
         6 . The basecoat of  claim 1  wherein said ground calcium carbonate component is at least about 10 percent by weight of said pigment blend and at most about 60 percent by weight of said pigment blend. 
     
     
         7 . The basecoat of  claim 1  wherein said pigment blend consists essentially of said hyperplaty clay component and said ground calcium carbonate component. 
     
     
         8 . The basecoat of  claim 1  further comprising a carrier, wherein said pigment blend is dispersed in said carrier to form a slurry. 
     
     
         9 . The basecoat of  claim 1  wherein said pigment blend has a sediment void volume of at least about 45 percent. 
     
     
         10 . The basecoat of  claim 1  wherein said pigment blend has a sediment void volume of at least about 47.5 percent. 
     
     
         11 . The basecoat of  claim 1  wherein said pigment blend has a sediment void volume of at least about 50 percent.

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