Jeffrey Dale Elliott

US Patent:

7238231, Jul 3, 2007

Filed:

Nov 16, 2006

Appl. No.:

11/600643

Inventors:

Daniel H. Craig - Edmond OK, US
Jeffrey D. Elliott - Oklahoma City OK, US
Harmon E. Ray - Yukon OK, US

Assignee:

Tronox LLC - Oklahoma City OK

International Classification:

C09C 3/06
C09C 1/36
C01G 23/047
C01G 23/07
B05D 7/00

US Classification:

106438, 106436, 106437, 423598, 427215, 427218

Abstract:

An improved process is described for manufacturing zirconia-treated titanium dioxide pigments, wherein the zirconia treatment is accomplished in the process of fluidizing a titanium dioxide filter or press cake and then drying the same, through the addition to the filter or press cake of one or more alkaline water-soluble zirconium reagents selected from ammonium zirconyl carbonate, the water-soluble ammonium zirconyl carboxylates and mixtures of these. Aqueous solutions of such zirconium reagents, in addition to being effective for imparting a zirconia surface treatment to the titanium dioxide materials, also prove to be effective fluidizing agents for forming high solids dispersions of the zirconia-treated titanium dioxide pigment materials which can be spray dried without substantial dilution and excessive energy requirements.

US Patent:

20060045841, Mar 2, 2006

Filed:

Aug 30, 2004

Appl. No.:

10/928387

Inventors:

Daniel Craig - Edmond OK, US
Jeffrey Elliott - Oklahoma City OK, US
George Perakis - Edmond OK, US
Harmon Ray - Yukon OK, US

International Classification:

C09C 1/36

US Classification:

423610000, 106436000

Abstract:

A process is disclosed for making titanium dioxide pigment particularly suited for dispersion in thermoplastics, in which the titanium dioxide pigment is recoverable from a slurry through the use of conventional vacuum-type and/or pressure-type filtration systems without the deposition of additional inorganic oxides and in the absence of added flocculating agents, and further in which the thus-recovered, washed and filtered pigment can be dried by spray drying, without the dilution required in the production of such pigments according to a prior art process likewise omitting the deposition of additional inorganic oxides to those formed in a vapor phase oxidation step providing the agglomerated titanium dioxide starting material and omitting any use of added flocculating agents.

US Patent:

20060046058, Mar 2, 2006

Filed:

Aug 30, 2004

Appl. No.:

10/928442

Inventors:

Daniel Craig - Edmond OK, US
Jeffrey Elliott - Oklahoma City OK, US
George Perakis - Edmond OK, US

International Classification:

B32B 15/02
B32B 17/02

US Classification:

428407000

Abstract:

Processes are disclosed for treating an inorganic particulate to provide improved dispersibility in a thermoplastic, for example, titanium dioxide as an opacifier or colorant in a polyolefin concentrate, and for producing said pigmented thermoplastic, wherein a surface coating is applied to the particulate which comprises at least one ester or partial ester of an organic polyol and a hydroxy group-functionalized saturated fatty acid.

US Patent:

20060047021, Mar 2, 2006

Filed:

Aug 30, 2004

Appl. No.:

10/928438

Inventors:

Daniel Craig - Edmond OK, US
Jeffrey Elliott - Oklahoma City OK, US
George Perakis - Edmond OK, US

International Classification:

C08K 9/12

US Classification:

523210000

Abstract:

An improved thermoplastic composition includes an inorganic particulate dispersed in a thermoplastic, for example, an inorganic pigment such as titanium dioxide dispersed in a polyolefin as a color concentrate, wherein the inorganic particulate includes a surface coating comprised of at least one alkenyl- or alkyl-substituted succinic anhydride, for example, hexadecenylsuccinic anhydride and dodecenylsuccinic anhydride.

US Patent:

20060047023, Mar 2, 2006

Filed:

Aug 30, 2004

Appl. No.:

10/928443

Inventors:

Daniel Craig - Edmond OK, US
Jeffrey Elliott - Oklahoma City OK, US
George Perakis - Edmond OK, US

International Classification:

C08K 9/12

US Classification:

523210000

Abstract:

Processes are disclosed for treating an inorganic particulate to provide improved dispersibility in a thermoplastic, for example, titanium dioxide as an opacifier or colorant in a polyolefin concentrate, and for producing said pigmented thermoplastic, wherein a surface coating is applied to the particulate which comprises at least one alkenyl- or alkyl-substituted succinic anhydride.

US Patent:

20060048674, Mar 9, 2006

Filed:

Sep 7, 2004

Appl. No.:

10/934987

Inventors:

Daniel Craig - Edmond OK, US
Jeffrey Elliott - Oklahoma City OK, US
George Perakis - Edmond OK, US
Harmon Ray - Yukon OK, US

International Classification:

C09K 3/00
B05D 1/02

US Classification:

106035000, 427421100

Abstract:

Processes are disclosed for treating an inorganic particulate to provide improved dispersibility in a thermoplastic, for example, titanium dioxide as an opacifier or colorant in a polyolefin concentrate, and for producing said pigmented thermoplastic, wherein a surface coating is deposited on the particulate which comprises at least one N,N,N-trialkyl quaternary amino acid inner salt.

US Patent:

20060048677, Mar 9, 2006

Filed:

Sep 7, 2004

Appl. No.:

10/934992

Inventors:

Daniel Craig - Edmond OK, US
Jeffrey Elliott - Oklahoma City OK, US
Michael Kidder - Piedmont OK, US
George Perakis - Edmond OK, US
Harmon Ray - Yukon OK, US

International Classification:

C09C 1/36

US Classification:

106447000

Abstract:

Processes are disclosed for treating an inorganic particulate to provide improved dispersibility in a thermoplastic, for example, titanium dioxide as an opacifier or colorant in a polyolefin concentrate, and for producing said pigmented thermoplastic, wherein a surface coating is applied to the particulate which comprises at least one N-acyl amino acid or N-acyl amino acid salt.

US Patent:

20060051503, Mar 9, 2006

Filed:

Sep 7, 2004

Appl. No.:

10/934984

Inventors:

Daniel Craig - Edmond OK, US
Jeffrey Elliott - Oklahoma City OK, US
George Perakis - Edmond OK, US
Michael Kidder - Piedmont OK, US

International Classification:

B05D 7/00

US Classification:

427212000

Abstract:

Processes are disclosed for treating an inorganic particulate to provide improved dispersibility in a thermoplastic, for example, titanium dioxide as an opacifier or colorant in a polyolefin concentrate, and for producing said pigmented thermoplastic, wherein a surface coating is deposited on the particulate which comprises one or more of the α,α-dialkyl substituted linear or branched carboxylic acids and the salts thereof.