Patent US5575845A successfully refreshed from Google Patents.
US5575845A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carbon black products for coloring mineral binders
Assignee: Cabot Corp
•
Filing: 1994-12-15
•
Granted: 1996-11-19
•
Expires: 2014-12-15
Abstract
Abstract A mineral binder composition having incorporated therein a carbon black product comprising a carbon black having attached an organic group containing an ionic or an ionizable group.
Inventors
- 👤 James A. Belmont
- 👤 Ralph U. Boes
- 👤 Jameel Menashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:58
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/56; C04; C04B; C04B14/00; C04B14/02; C04B14/022; C09C1/58; C01; C01P; C01P2006/00; C01P2006/19; C04B2103/00; C04B2103/54
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
29 words
A mineral binder composition comprising a mineral binder and a carbon black product comprising a carbon black having attached an organic group containing an ionic or an ionizable group.
Claim 2
Dependent Claim
29 words
A mineral binder composition comprising a mineral binder and a carbon black product comprising a carbon black having attached an organic group containing an ionic or an ionizable group.
Claim 3
Dependent Claim
17 words
A composition of claim 1 wherein the carbon black product is a water dispersible carbon black product.
Claim 4
Dependent Claim
25 words
A composition of claim 2 wherein the carbon black product is dispersed in the mineral binder composition by means of low shear stirring or mixing.
Claim 5
Dependent Claim
28 words
A composition of claim 1 wherein the carbon black product is present in an amount of less than or equal to 5% by weight of the mineral binder.
Claim 6
Dependent Claim
14 words
A composition of claim 1 wherein the carbon black product is in pelletized form.
Claim 7
Dependent Claim
15 words
A composition of claim 1 wherein the mineral binder is concrete, cement, mortar, or plaster.
Claim 8
Dependent Claim
20 words
A composition of claim 1 wherein the ionic or the ionizable group is a carboxylic acid or a salt thereof.
Claim 9
Dependent Claim
20 words
A composition of claim 1 wherein the ionic or the ionizable group is a sulfonic acid or a salt thereof.
Claim 10
Dependent Claim
17 words
A composition of claim 1 wherein the organic group is a sulfophenyl group or a salt thereof.
Claim 11
Dependent Claim
15 words
A composition of claim 1 wherein the organic group is p-sulfophenyl or a salt thereof.
Claim 12
Dependent Claim
17 words
A composition of claim 1 wherein the organic group is a carboxyphenyl group or a salt thereof.
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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) | 1999-11-19 | 2000-05-20 | 2000-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-11-19 | 2004-05-20 | 2004-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-11-19 | 2008-05-20 | 2008-11-19 | $7700.00 | Window Closed / Lapsed |