Bomi M Bilimoria

US Patent:

6554892, Apr 29, 2003

Filed:

Jun 30, 2000

Appl. No.:

09/608164

Inventors:

John A. Manasso - Macon GA
Bomi M. Bilimoria - Macon GA
Leslie A. McLain - Macon GA
Milton Constantin - Barcerena-Para, BR

Assignee:

Imerys Kaolin, Inc. - Dry Branch GA

International Classification:

C09C 142

US Classification:

106486, 106416, 106484

Abstract:

Coarse platey, high brightness kaolin products and methods for making the same, including combining a coarse kaolin fraction and a fine kaolin fraction, where each coarse or fine kaolin fraction may be produced by processing one or more crude kaolin samples through different stages of the methods of the present invention, by blending of one or more crude kaolin samples so processed, or as a by-product of a coarse or fine kaolin product.

US Patent:

7208039, Apr 24, 2007

Filed:

Mar 23, 2005

Appl. No.:

11/086575

Inventors:

J. Philip E. Jones - Alpharetta GA, US
Robert J. Pruett - Milledgeville GA, US
Jun Yuan - Warner Robins GA, US
Michael J. Garska - Sandersville GA, US
David O. Cummings - Warthen GA, US
Bomi M. Bilimoria - Macon GA, US
Robin Wesley - Ruislip, GB

Assignee:

Imerys Pigments, Inc. - Roswell GA

International Classification:

C09C 1/00
C09C 1/34
C04B 14/04

US Classification:

106486, 106416, 106454

Abstract:

The present invention relates to a hydrous kaolin product having improved optical properties, for example, when used in the production of paper products. The present invention comprises an improved barrier coating for paper and a method of making the coated paper. The present invention also comprises an improved method from making filled and coated paper products. The present invention uses a composition comprising kaolin having a shape factor of at least about 70:1, such as at least about 80:1 or at least about 100:1.

US Patent:

7214264, May 8, 2007

Filed:

Apr 19, 2005

Appl. No.:

11/108878

Inventors:

J. Philip E. Jones - Alpharetta GA, US
Robert J. Pruett - Milledgeville GA, US
Jun Yuan - Warner Robins GA, US
Michael J. Garska - Sandersville GA, US
David O. Cummings - Warthen GA, US
Bomi M. Bilimoria - Macon GA, US
Robin Wesley - Ruislip, GB

Assignee:

Imerys Pigments, Inc. - Roswell GA

International Classification:

C04B 14/10
C09D 1/00

US Classification:

106486, 1062865, 10628717, 106442, 106445, 106446, 106484, 106487, 106811, 501141, 501145

Abstract:

The present invention relates to a hydrous kaolin product having improved optical properties, for example, when used in the production of paper products. The present invention comprises an improved barrier coating for paper and a method of making the coated paper. The present invention also comprises an improved method from making filled and coated paper products. The present invention uses a composition comprising kaolin having a shape factor of at least about 70:1, such as at least about 80:1 or at least about 100:1.

US Patent:

7226005, Jun 5, 2007

Filed:

Mar 23, 2005

Appl. No.:

11/086563

Inventors:

J. Philip E. Jones - Alpharetta GA, US
Robert J. Pruett - Milledgeville GA, US
Jun Yuan - Warner Robins GA, US
Michael J. Garska - Sandersville GA, US
David O. Cummings - Warthen GA, US
Bomi M. Bilimoria - Macon GA, US
Robin Wesley - Ruislip, GB

Assignee:

Imerys Pigments, Inc. - Roswell GA

International Classification:

B02C 19/00

US Classification:

241 21, 241 241, 241 29

Abstract:

The present invention relates to a hydrous kaolin product having improved optical properties, for example, when used in the production of paper products. The present invention comprises an improved barrier coating for paper and a method of making the coated paper. The present invention also comprises an improved method from making filled and coated paper products. The present invention uses a composition comprising kaolin having a shape factor of at least about 70:1, such as at least about 80:1 or at least about 100:1.

US Patent:

7806978, Oct 5, 2010

Filed:

Dec 15, 2003

Appl. No.:

10/531257

Inventors:

Robert J. Pruett - Milledgeville GA, US
Jun Yuan - Kathleen GA, US
Bomi M. Bilimoria - Macon GA, US
Roger W. Wygant - Sandersville GA, US
Anthony V. Lyons - Macon GA, US

Assignee:

Imerys Pigments, Inc. - Roswell GA

International Classification:

C04B 14/04
C01F 5/24

US Classification:

106484, 106486, 106487, 106488, 106485, 423432

Abstract:

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.

US Patent:

20020010249, Jan 24, 2002

Filed:

May 31, 2001

Appl. No.:

09/870442

Inventors:

Bomi Bilimoria - Macon GA, US

International Classification:

C08K003/34
C08K003/00

US Classification:

524/447000, 524/556000

Abstract:

The present invention provides several methods for improving the high and low shear rheology of a substantially grit-free and substantially dispersed particulate slurry using a rotor-stator type mill. The methods are applicable to slurries including a natural mineral, suspensions including a natural mineral, and suspensions including synthetic minerals. The methods of the present invention selectively include performance of one or more of the processes of beneficiation, re-milling, dewatering and re-dispersion, and drying, performed in any one of several sequences as disclosed or suggested herein. The present invention further provides a number slurry products having an improved high and/or low shear rheology that are produced by the performance of different combinations

US Patent:

20030085012, May 8, 2003

Filed:

Sep 4, 2002

Appl. No.:

10/233599

Inventors:

J. Jones - Alpharetta GA, US
Robert Pruett - Milledgeville GA, US
Jun Yuan - Warner Robins GA, US
Michael Garska - Sandersville GA, US
David Cummings - Warthen GA, US
Bomi Bilimoria - Macon GA, US
Robin Wesley - Middlesex, GB

International Classification:

C09C001/02
D21H017/68

US Classification:

162/181800, 162/135000, 106/468000, 162/158000

Abstract:

The present invention relates to a hydrous kaolin product having improved optical properties, for example, when used in the production of paper products. The present invention comprises an improved barrier coating for paper and a method of making the coated paper. The present invention also comprises an improved method from making filled and coated paper products. The present invention uses a composition comprising kaolin having a shape factor of at least about 70:1, such as at least about 80:1 or at least about 100:1.

US Patent:

20060137574, Jun 29, 2006

Filed:

Jan 13, 2004

Appl. No.:

10/531946

Inventors:

Janet Preston - Cornwall, GB
Anthony Lyons - Macon GA, US
Bomi Bilimoria - Macon GA, US
David Skuse - Cornwall, GB

International Classification:

C09C 1/02

US Classification:

106464000

Abstract:

The present invention relates to new pigment compositions, coating compositions and methods for making the new compositions, such as coatings for ink jet receiving materials. The coated inkjet receiving material can provide improved printability. The pigment composition can be prepared by dispersing a carbonate pigment with at least one anionic dispersant The predispersed carbonate can then combined with at least one cationic polymer, such as a polyquaternary ammonium polymer or polyamine capable of being converted to a polyquaternary ammonium polymer.