Basecoat and Associated Paperboard Structure Including a Pigment Blend of Hyper-platy Clay and Calcined Clay

A basecoat including a pigment blend including a calcined clay component and a hyper-platy clay component, wherein the hyper-platy clay component has a shape factor of at least about 40:1, and wherein the pigment blend has a sediment void volume of at least about 50 percent. 1. A basecoat comprising a pigment blend including a calcined clay component and a hyper-platy clay component , wherein said hyper-platy clay component has a shape factor of at least about 40:1 , and wherein said pigment blend has a sediment void volume of at least about 50 percent when measured by a technique involving diluting said pigment blend with water to 50% by weight solids , centrifuging a 70 gram sample of the resulting slurry at 8000 g for 90 minutes and calculating the volume of water remaining in the voids of the sediment after pouring off and weighing the supernatant liquid.2. The basecoat of wherein said shape factor of said hyper-platy clay component is at least about 70:1.3. The basecoat of wherein said shape factor of said hyper-platy clay component is at least about90:1.4. The basecoat of wherein said calcined clay component comprises at least about 10 percent by weight of said pigment blend and at most about 60 percent by weight of said pigment blend.5. The basecoat of wherein said calcined clay component comprises at least about 15 percent by weight of said pigment blend and at most about 40 percent by weight of said pigment blend.6. The basecoat of wherein said pigment blend consists essentially of said hyper-platy clay component and said calcined clay component.7. The basecoat of further comprising a carrier claim 1 , wherein said pigment blend is dispersed in said carrier to form a slurry.8. The basecoat of wherein said sediment void volume is at least about 55 percent.9. The basecoat of wherein said sediment void volume is at least about 60 percent.10. The basecoat of wherein said calcined clay component comprises calcined clay particles claim 1 , and wherein at most ...

INORGANIC PARTICULATE SUSPENSION HAVING IMPROVED HIGH SHEAR VISCOSITY

An inorganic particulate suspension may include a first kaolin having a shape factor of at least about 70, and a second kaolin having a shape factor less than or equal to about 20. The first kaolin and the second kaolin form a kaolin composition, which may have a content ratio of the first kaolin to the second kaolin ranging from about 90:10 to about 50:50. An inorganic particulate suspension may include a kaolin composition having a shape factor ranging from about 55 to about 75, wherein at least about 70% to about 90% by weight of the particles of the kaolin composition have an equivalent spherical diameter less than 2 microns. The suspension may have a Hercules viscosity ranging from about 600 rpm to about 700 rpm at 18.0 dyne using an “A” bob, and the suspension may have a solids content ranging from about 55% to about 75% solids. 114-. (canceled)15. An inorganic particulate suspension comprising:a first kaolin having a shape factor of at least about 70; anda second kaolin having a shape factor less than or equal to about 20,wherein the first kaolin and the second kaolin form a kaolin composition,wherein the kaolin composition has a content ratio of the first kaolin to the second kaolin ranging from about 90:10 to about 50:50, andwherein the inorganic particulate suspension has a Hercules viscosity ranging from about 600 rpm to about 700 rpm at 18.0 dyne using an “A” bob.16. The inorganic particulate suspension of claim 15 , wherein the inorganic particulate suspension has a Hercules viscosity ranging from about 610 rpm to about 690 rpm at 18.0 dyne using an “A” bob.17. The inorganic particulate suspension of claim 15 , wherein the inorganic particulate suspension has a Hercules viscosity ranging from about 620 rpm to about 685 rpm at 18.0 dyne using an “A” bob.18. The inorganic particulate suspension of claim 15 , wherein the inorganic particulate suspension has a Brookfield viscosity ranging from about 280 cps to about 580 cps using a #2 spindle at 20 rpm.19. ...

High surface area incineration product

The present invention relates to a high surface area product and its production from solid-containing material, such as waste effluent from a paper-treating plant. The high surface area product comprises calcium carbonate, and is useful as a coefficient of friction control filler for newsprint.

Pigment composition for employment in paper coating and coating composition and method employing the same

A pigment composition for use in coating a paper product, comprises a blend of at least two minerals comprising (a) a fine kaolin produced from blocky kaolin clay and (b) a calcium carbonate which may be either a ground or a precipitated calcium carbonate, wherein the blend has a kaolin: carbonate weight ratio of at least 40:60, preferably at least 50:50, the kaolin and the carbonate each having a steep particle size distribution. Also disclosed are a coating composition containing the pigment composition, a process for coating paper products using the coating formulation and a method of improving the optical and printing properties of a paper product.

Lignin-based vapor barrier formulations

The invention provides for a vapor barrier formulation suitable for coating and lamination onto a paper substrate and comprises organosolv lignin in a dispersion, mica and latex. The laminated paper product is recyclable.

Lignin-based vapor barrier formulations

Fine platy kaolin composition

The present invention relates to a kaolin composition having improved physic al properties, for example, for use in the production of paper products. The composition can comprise kaolin having a shape factor of at least about 20. The kaolin can have a particle size distribution such that at least about 94 % by weight of the kaolin can have an esd of less than about 2 .mu.m and/or at least about 80% by weight of the kaolin can have an esd of less than 1 .mu.m . The amount of the kaolin having an esd of less than about 0.25 .mu.m can ran ge from about 25% to about 60% by weight. The Hercules viscosity of the kaolin . product is less than 4000 rpm at 18 dynes at 63% solids and less than 1500 r pm at 18 dynes at 69% solids when measured using the "A" bob. The present invention also relates to an improved method for making the kaolin product from sedimentary kaolin.

Fine platy kaolin composition

The present invention relates to a kaolin composition having improved physical properties, for example, for use in the production of paper products. The composition can comprise kaolin having a shape factor of at least about 20. The kaolin can have a particle size distribution such that at least about 94% by weight of the kaolin can have an esd of less than about 2 μm and/or at least about 80% by weight of the kaolin can have an esd of less than 1 μm. The amount of the kaolin having an esd of less than about 0.25 μm can range from about 25% to about 60% by weight. The Hercules viscosity of the kaolin product is less than 4000 rpm at 18 dynes at 63% solids and less than 1500 rpm at 18 dynes at 69% solids when measured using the “A” bob. The present invention also relates to an improved method for making the kaolin product from sedimentary kaolin.

Lignin-based vapor barrier formulations

Fine platy kaolin composition

The present invention relates to a kaolin composition having improved physical properties, for example, for use in the production of paper products. The composition can comprise kaolin having a shape factor of at least about 20. The kaolin can have a particle size distribution such that at least about 94% by weight of the kaolin can have an esd of less than about 2 μm and/or at least about 80% by weight of the kaolin can have an esd of less than 1 μm. The amount of the kaolin having an esd of less than about 0.25 μm can range from about 25% to about 60% by weight. The Hercules viscosity of the kaolin . product is less than 4000 rpm at 18 dynes at 63% solids and less than 1500 rpm at 18 dynes at 69% solids when measured using the 'A' bob. The present invention also relates to an improved method for making the kaolin product from sedimentary kaolin.

顔料組成物

【課題】紙製品、特にインクジェット用の紙製品に対する塗工性に適した水性塗工用組成物を提供する。【解決手段】無機粒状物質、多価金属塩およびノニオン性分散剤を配合する。【選択図】なし