US3644255A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stable dispersions
Assignee: EIDP Inc
•
Filing: 1969-12-09
•
Granted: 1972-02-22
•
Expires: 1989-12-09
Abstract
Abstract A dispersion of particles in an organic liquid containing, as an antiflocculating agent, molecules of a polymeric material represented by the structure WHERE -> CAN BE A POLYMERIC SEGMENT BEARING FUNCTIONAL GROUPS CAPABLE OF BONDING TO THE NITROGEN ATOM, AND X and Y can be any substituent which does not interfere with bonding -> to the nitrogen atom.
Inventors
- 👤 Darrell R Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:40
CPC Classifications
C; C09; C09B; C09B67/00; C09B67/0071; C09B67/0084; C09B67/0085; C09B67/009; C08; C08J; C08J3/00; C08J3/02; C08J3/09; C08J3/11; C09K; C09K23/00; C09K23/54
Claims Analysis
Total Claims: 36
Claim 1
Independent Claim
14 words
The dispersion of claim 1 wherein the dispersed particles in (B) are polymer particles.
Claim 2
Dependent Claim
11 words
The dispersion of claim 2 wherein the acid units are carboxyl-bearing.
Claim 3
Dependent Claim
18 words
The dispersion of claim 3 wherein the polymeric material has a Z segment whose molecular weight is 1,000-500,000.
Claim 4
Dependent Claim
13 words
The dispersion of claim 3 wherein the acid units are of itaconic acid.
Claim 5
Dependent Claim
18 words
The dispersion of claim 5 wherein Z of the polymeric material is a methyl methacrylate/butyl acrylate/itaconic acid terpolymer.
Claim 6
Dependent Claim
17 words
The dispersion of claim 5 wherein Z of the polymeric material is a methyl methacrylate/itaconic acid copolymer.
Claim 7
Dependent Claim
16 words
The dispersion of claim 2 wherein the polymeric material in (C) is represented by the structure
Claim 8
Dependent Claim
18 words
The dispersion of claim 8 wherein Z of the polymeric material is a methyl methacrylate/butyl acrylate/itaconic acid terpolymer.
Claim 9
Dependent Claim
17 words
The dispersion of claim 8 wherein Z of the polymeric material is a methyl methacrylate/itaconic acid copolymer.
Claim 10
Dependent Claim
16 words
The dispersion of claim 2 wherein the polymeric material in (C) is represented by the structure
Claim 11
Dependent Claim
19 words
The dispersion of claim 11 wherein Z of the polymeric material is a methyl methacrylate/butyl acrylate itaconic acid terpolymer.
Claim 12
Dependent Claim
17 words
The dispersion of claim 11 wherein Z of the polymeric material is a methyl methacrylate/itaconic acid copolymer.
Claim 13
Dependent Claim
20 words
The dispersion of claim 2 wherein the polymeric material in (C) is represented by the structure Z -> NH2(CH2)3-Si (OCH2CH3)3
Claim 14
Dependent Claim
18 words
The dispersion of claim 14 wherein Z of the polymeric material is a methyl methacrylate/butyl acrylate/itaconic acid terpolymer.
Claim 15
Dependent Claim
17 words
The dispersion of claim 14 wherein Z of the polymeric material is a methyl methacrylate/itaconic acid copolymer.
Claim 16
Dependent Claim
16 words
The dispersion of claim 2 wherein the polymeric material in (C) is represented by the structure
Claim 17
Dependent Claim
18 words
The dispersion of claim 17 wherein Z of the polymeric material is a methyl methacrylate/butyl acrylate/itaconic acid terpolymer.
Claim 18
Dependent Claim
13 words
The dispersion of claim 17 wherein Z is a methyl methacrylate/itaconic acid copolymer.
Claim 19
Dependent Claim
15 words
The dispersion of claim 2 wherein the polymer particles in (B) are of polyvinyl fluoride.
Claim 20
Dependent Claim
15 words
The dispersion of claim 3 wheRein the polymer particles in (B) are of polyvinyl fluoride.
Claim 21
Dependent Claim
15 words
The dispersion of claim 4 wherein the polymer particles in (B) are of polyvinyl fluoride.
Claim 22
Dependent Claim
15 words
The dispersion of claim 5 wherein the polymer particles in (B) are of polyvinyl fluoride.
Claim 23
Dependent Claim
15 words
The dispersion of claim 6 wherein the polymer particles in (B) are of polyvinyl fluoride.
Claim 24
Dependent Claim
15 words
The dispersion of claim 7 wherein the polymer particles in (B) are of polyvinyl fluoride.
Claim 25
Dependent Claim
14 words
The dispersion of claim 8 wherein the polymer particles in (B) are polyvinyl fluoride.
Claim 26
Dependent Claim
15 words
The dispersion of claim 9 wherein the polymer particles in (B) are of polyvinyl fluoride.
Claim 27
Dependent Claim
15 words
The dispersion of claim 10 wherein the polymer particles in (B) are of polyvinyl fluoride.
Claim 28
Dependent Claim
15 words
The dispersion of claim 11 wherein the polymer particles in (B) are of polyvinyl fluoride.
Claim 29
Dependent Claim
15 words
The dispersion of claim 12 wherein the polymer particles in (B) are of polyvinyl fluoride.
Claim 30
Dependent Claim
15 words
The dispersion of claim 13 wherein the polymer particles in (B) are of polyvinyl fluoride.
Claim 31
Dependent Claim
15 words
The dispersion of claim 14 wherein the polymer particles in (B) are of polyvinyl fluoride.
Claim 32
Dependent Claim
15 words
The dispersion of claim 15 wherein the polymer particles in (B) are of polyvinyl fluoride.
Claim 33
Dependent Claim
15 words
The dispersion of claim 16 wherein the polymer particles in (B) are of polyvinyl fluoride.
Claim 34
Dependent Claim
15 words
The dispersion of claim 17 wherein the polymer particles in (B) are of polyvinyl fluoride.
Claim 35
Dependent Claim
15 words
The dispersion of claim 18 wherein the polymer particles in (B) are of polyvinyl fluoride.
Claim 36
Dependent Claim
15 words
The dispersion of claim 19 wherein the polymer particles in (B) are of polyvinyl fluoride.
References Cited (Backward Citations)
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Cited
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Cited
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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) | 1975-02-21 | 1975-08-23 | 1976-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-21 | 1979-08-23 | 1980-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-21 | 1983-08-23 | 1984-02-22 | $7700.00 | Window Closed / Lapsed |