Charles R Bettler from 438 Arbella Loop, Lady Lake, FL 32162, age 81, Phone: 3524304968

Easy To Disperse, High Durability Tio2 Pigment And Method Of Making Same
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US Patent:

6783586, Aug 31, 2004
Filed:

Oct 29, 2002
Appl. No.:

10/282461
Inventors:

Charles Robert Bettler - Newark DE
Michael Patrick Deibold - Wilmington DE
Assignee:

E. I. du Pont de Nemours and Company - Wilmington DE
International Classification:

C04B 1400
US Classification:

106442, 106404, 106436, 106447, 106454, 427214, 427215, 427219, 4273762, 4274193
Abstract:

The present invention relates to a TiO pigment coated sequentially in a wet treatment process with hydrous silica and hydrous alumina both in the presence of citric acid wherein the resulting pigment is coated with from 1 to 4% amorphous alumina based on the weight of the untreated TiO ; from 3 to 6% silica glass based on the weight of the untreated TiO.

Easy To Disperse, High Durability Tiopigment And Method Of Making Same
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US Patent:

8105432, Jan 31, 2012
Filed:

Sep 28, 2007
Appl. No.:

11/904891
Inventors:

Charles Robert Bettler - Newark DE, US
Michael Patrick Diebold - Wilmington DE, US
Assignee:

E.I. du Pont de Nemours and Company - Wilmington DE
International Classification:

C09C 1/36
B32B 5/16
B32B 9/00
B32B 15/02
US Classification:

106446, 106442, 106436, 106300, 106447, 106438, 428403, 428404
Abstract:

The present invention relates to a TiOpigment coated sequentially in a wet treatment process with hydrous silica and hydrous alumina both in the presence of citric acid wherein the resulting pigment is coated with from 1 to 4% amorphous alumina based on the weight of the untreated TiO; from 3 to 6% silica glass based on the weight of the untreated TiO.

Easy To Disperse, High Durability Tio2 Pigment And Method Of Making Same
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US Patent:

20050016419, Jan 27, 2005
Filed:

Aug 19, 2004
Appl. No.:

10/921510
Inventors:

Charles Bettler - Newark DE, US
Michael Deibold - Wilmington DE, US
International Classification:

C09C001/36
C04B002/00
US Classification:

106442000, 106446000, 428403000, 428404000
Abstract:

The present invention relates to a TiOpigment coated sequentially in a wet treatment process with hydrous silica and hydrous alumina both in the presence of citric acid wherein the resulting pigment is coated with from 1 to 4% amorphous alumina based on the weight of the untreated TiO; from 3 to 6% silica glass based on the weight of the untreated TiO.

Easy To Disperse, High Durability Tio2 Pigment And Method Of Making Same
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US Patent:

20050222297, Oct 6, 2005
Filed:

May 24, 2005
Appl. No.:

11/136064
Inventors:

Charles Bettler - Newark DE, US
Michael Deibold - Wilmington DE, US
International Classification:

C09C001/36
C08K009/10
US Classification:

523210000, 106447000, 106442000, 523216000
Abstract:

The present invention relates to a TiOpigment coated sequentially in a wet treatment process with hydrous silica and hydrous alumina both in the presence of citric acid wherein the resulting pigment is coated with from 1 to 4% amorphous alumina based on the weight of the untreated TiO; from 3 to 6% silica glass based on the weight of the untreated TiO.

Titanium Dioxide Pigment Coated With Boria-Modified Silica And Alumina
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US Patent:

57530254, May 19, 1998
Filed:

Dec 12, 1996
Appl. No.:

8/764770
Inventors:

Charles Robert Bettler - Newark DE
Howard Wayne Jacobson - Wilmington DE
Michael R. Baloga - Camden TN
Max H. Lewis - Landenberg PA
Assignee:

E. I. du Pont de Nemours and Company - Wilmington DE
International Classification:

C09C 136
US Classification:

106442
Abstract:

A base TiO. sub. 2 pigment particles bearing coatings of a boria-modified silica and alumina is disclosed.

Charles R Bettler