Patent US4909852A successfully refreshed from Google Patents.
US4909852A
Expired / Lapsed
US
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Treatment of titanium dioxide and other pigments to improve dispersibility
Assignee: Individual
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Filing: 1988-04-29
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Granted: 1990-03-20
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Expires: 2008-04-29
Abstract
Abstract This invention is concerned with the treatment of particulate titanium dioxide and other pigments with a surfactant compound which serves to enhance its employment in pigmented and/or filled paints and plastics, paper making compositions and in reinforced plastic composite compositions.
Inventors
- 👤 George K. Atkinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:13
CPC Classifications
C; C08; C08K; C08K9/00; C08K9/04; C09; C09C; C09C1/00; C09C1/36; C09C1/3607; C09C1/3669; C09C3/00; C09C3/08; C01; C01P; C01P2004/00; C01P2004/60; C01P2004/62; C01P2004/80; C01P2004/82; C01P2004/84; C01P2006/00; C01P2006/12; C01P2006/22; C01P2006/60; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/07
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
61 words
A composition comprising pigment particles containing on their surfaces a surfactant, said surfactant being present on said surfaces in an amount sufficient to improve the dispersibility of sid particles in a resin medium, a plastic medium, a paper meaking composition, or a reinforced plastic composite composition, wherein the surfactant consists of the reaction product of a Diamine, and a Fatty Acid.
Claim 2
Dependent Claim
61 words
A composition comprising pigment particles containing on their surfaces a surfactant, said surfactant being present on said surfaces in an amount sufficient to improve the dispersibility of sid particles in a resin medium, a plastic medium, a paper meaking composition, or a reinforced plastic composite composition, wherein the surfactant consists of the reaction product of a Diamine, and a Fatty Acid.
Claim 3
Dependent Claim
28 words
The composition of claim 1 wherein the pigment is carbon black and the amount of surfactant is from about 1.00 to about 15.0 weight percent of the composition.
Claim 4
Dependent Claim
22 words
The comoosition of claim 2 wherein the amount of surfactant is from about 4 to about 10 weight percent of the composition.
Claim 5
Dependent Claim
29 words
The composition of claim 1 wherein the pigment is an organic pigment and the amount of surfactant is from about 1.00 to about 15.0 weight percent of the composition.
Claim 6
Dependent Claim
23 words
The composition of claim 4 wherein the amount of the surfactant is from about 4.0 to about 10.0 weight percent of the composition.
Claim 7
Dependent Claim
12 words
The composition of claim 4 wherein the organic pigment is phthalocyanine blue.
Claim 8
Dependent Claim
29 words
The composition of claim 1 wherein the pigment is an inert pigment and the amount of surfactant is from about 0.25 to about 5 weight percent of the composition.
Claim 9
Dependent Claim
23 words
The composition of claim 7 wherein the amount of the surfactant is from about 0.5 to about 3.0 weight percent of the composition.
Claim 10
Dependent Claim
19 words
The composition of claim 8 wherein the amount of surfactant is about 2 wegght per cent of the composition.
Claim 11
Dependent Claim
12 words
The composition of claim 7 wherein the inert pigment is calcium carbonate.
Claim 12
Dependent Claim
12 words
The composition of claim 1 wherein the Dicarboxylid Acid is Glutanic Acid.
Claim 13
Dependent Claim
12 words
The composition of claim 1 wherein the Dicarboxylic Acid is Adipic Acid.
Claim 14
Dependent Claim
13 words
The composition of claim 1 wherein the Dicarboxylic Acid is a Phthalic Acid.
Claim 15
Dependent Claim
44 words
In a process for treating, carbon black pigments with a dispersing agent in order to improve their dispersibility in organic and aqueous media, the improvement comprising utilizing a surfactant consisting of the reaction product of: a Diamine, a Dicarboxylic acid, and a Fatty Acid.
Claim 16
Dependent Claim
44 words
In a process for treating, carbon black pigments with a dispersing agent in order to improve their dispersibility in organic and aqueous media, the improvement comprising utilizing a surfactant consisting of the reaction product of: a Diamine, a Dicarboxylic acid, and a Fatty Acid.
Claim 17
Dependent Claim
60 words
In the process of claim 14 for the preparation of carbon black the improvement consisting of the steps of: a. adding from about I.00 to about I5.0 eight percent, based on the weight of said carbon black pigment of surfactaqnt to a slurry of carbon black pigment, b. drying the resulting slurry, and c. recovering the finished carbon black pigment.
Claim 18
Dependent Claim
17 words
A surfactant consisting of the reaction product of: A Triamine, a Dicarboxylic Acid, and a Fatty Acid.
Claim 19
Dependent Claim
17 words
A surfactant consisting of the reaction product of: A Triamine, a Dicarboxylic Acid, and a Fatty Acid.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-03-19 | 1993-09-18 | 1994-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-03-19 | 1997-09-18 | 1998-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-03-19 | 2001-09-18 | 2002-03-20 | $7700.00 | Window Closed / Lapsed |