US4038101A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reactive pigments and methods of producing the same
Assignee: Georgia Kaolin Co
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Filing: 1976-05-04
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Granted: 1977-07-26
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Expires: 1996-05-04
Abstract
Abstract Reactive pigments and methods of producing the same for use in manifold copy systems is provided in which a member from the group consisting of bentonite and montmorillonite is admixed with kaolinite, added to an aqueous solution of a polyvalent cation, a ligand is added and the solids separated, dried and pulverized.
Inventors
- 👤 Thomas D. Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:18
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/124; B41M5/132; B41M5/155; B41M5/1555; C; C09; C09C; C09C1/00; C09C1/40; C09C1/42; C01; C01P; C01P2006/00; C01P2006/22; C01P2006/60; C01P2006/80
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
41 words
A reactive pigment for manifold copy systems consisting essentially of a mixture of a member from the group consisting of metal ions and hydrogen ion, a ligand, a member selected from the group consisting of bentonite and montmorillonite and a kaolinite.
Claim 2
Dependent Claim
41 words
A reactive pigment for manifold copy systems consisting essentially of a mixture of a member from the group consisting of metal ions and hydrogen ion, a ligand, a member selected from the group consisting of bentonite and montmorillonite and a kaolinite.
Claim 3
Dependent Claim
14 words
A reactive pigment as claimed in claim 1 wherein the kaolinite is calcined kaolinite.
Claim 4
Dependent Claim
13 words
A reactive pigment as claimed in claim 1 wherein the ligand is 1,6-Hexanediamine.
Claim 5
Dependent Claim
19 words
A reactive pigment as claimed in claim 1 wherein the metal ion is Cu derived from CuCl 2 .
Claim 6
Dependent Claim
27 words
A reactive pigment as claimed in claim 1 wherein the ratio of the member selected from the group montmorillonite and bentonite to kaolinite is 25% to 75%.
Claim 7
Dependent Claim
36 words
A reactive pigment as claimed in claim 1 wherein the ratio of the member selected from the group montmorillonite and bentonite to kaolinite is in the range 20% to 35% montmorillonite to 80% to 65% kaolinite.
Claim 8
Independent Claim
96 words
A method of producing reactive pigments for manifold copy systems comprising the steps: a. mixing a member from the group consisting of bentonite and montmorillonite with kaolinite in aqueous suspension, b. adding to and dispersing in said mixture a member from the group metal ions and protons, c. adding a ligand to and dispersing the same in the mixture of said member from the group consisting of bentonite and montmorillonite with kaolinite and a member from the group consisting of metal ions and hydrogen ion, d. separating the solids, and e. drying and pulverizing the solids.
Claim 9
Independent Claim
96 words
A method of producing reactive pigments for manifold copy systems comprising the steps: a. mixing a member from the group consisting of bentonite and montmorillonite with kaolinite in aqueous suspension, b. adding to and dispersing in said mixture a member from the group metal ions and protons, c. adding a ligand to and dispersing the same in the mixture of said member from the group consisting of bentonite and montmorillonite with kaolinite and a member from the group consisting of metal ions and hydrogen ion, d. separating the solids, and e. drying and pulverizing the solids.
Claim 10
Dependent Claim
12 words
The method of claim 7 wherein the kaolinite is a calcined kaolinite.
Claim 11
Dependent Claim
16 words
The method of claim 7 wherein the metal ion is Cu derived from CuCl 2 .
Claim 12
Dependent Claim
10 words
The method of claim 7 wherein the ligand is 1,6-Hexanediamine.
Claim 13
Dependent Claim
35 words
The method of claim 7 wherein the mixture of a member from the group consisting of bentonite and montmorillonite and kaolinite are dispersed in aqueous solution with a mixture of inorganic and organic dispersing agents.
Claim 14
Dependent Claim
21 words
The method of claim 11 wherein the inorganic dispersing agent is sodium hexametaphosphate and the organic dispersing agent is a polyacrylate.
Claim 15
Dependent Claim
30 words
The method of claim 11 wherein the mixture of dispersing agents consists of about 90% sodium hexametaphosphate and about 10% of a polyacrylate having a molecular weight of about 5000.
Claim 16
Dependent Claim
10 words
The method of claim 11 wherein the ligand is 1,6-Hexanediamine.
Claim 17
Dependent Claim
16 words
The method of claim 11 wherein the metal ion is Cu derived from CuCl 2 .
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-07-25 | 1981-01-24 | 1981-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-07-25 | 1985-01-24 | 1985-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-07-25 | 1989-01-24 | 1989-07-26 | $7700.00 | Window Closed / Lapsed |