US4290930A
Expired / Lapsed
US
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Aqueous vinyl plastics dispersion containing water soluble salt of polybasic phosphonic acid derivative
Assignee: Hoechst AG
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Filing: 1979-03-08
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Granted: 1981-09-22
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Expires: 1999-03-08
Abstract
Abstract In the manufacture of plastics dispersions on the basis of vinyl polymers water-soluble salts of polybasic phosphonic acid derivatives, especially alkane-phosphonic acids and phosphonomethyl amines are used as dispersing auxiliaries. The dispersions obtained are suitable as coating agents and for impregnating, coating or glueing solid materials.
Inventors
- 👤 Ernst Nolken
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:30
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/36; D21H19/44; D21H19/56; C; C08; C08F; C08F2/00; C08F2/12; C08F2/16; C08F2/22; C08F2/24; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
52 words
An aqueous dispersion of vinyl polymer plastic containing 0.005 to 5% by weight, calculated on the total amount of vinyl monomer(s), of a water-soluble salt of a polybasic phosphonic acid derivative having two to four phosphorus atoms wherein said dispersion contains polymer particles with an average diameter of 0.05 to 5.0 μm.
Claim 2
Dependent Claim
52 words
An aqueous dispersion of vinyl polymer plastic containing 0.005 to 5% by weight, calculated on the total amount of vinyl monomer(s), of a water-soluble salt of a polybasic phosphonic acid derivative having two to four phosphorus atoms wherein said dispersion contains polymer particles with an average diameter of 0.05 to 5.0 μm.
Claim 3
Dependent Claim
18 words
The dispersion of claim 1 wherein the average diameter of the polymer particles is 0.08 to 2.0 μm.
Claim 4
Dependent Claim
12 words
The dispersion of claim 1 having a pH of 3.5 to 9.0.
Claim 5
Dependent Claim
18 words
The dispersion of claim 1 wherein the water-soluble salt is either an ammonium or an alkali metal salt.
Claim 6
Dependent Claim
30 words
The dispersion of claim 1 wherein the phosphonic acid derivative is either a diphosphono-alkane having 1 to 8 carbon atoms or a phosphonomethyl amine having 1 or 2 nitrogen atoms.
Claim 7
Dependent Claim
64 words
The dispersion of claim 5 wherein the diphosphonoalkane is a compound having the general formula: ##STR4## in which R 1 is a hydrogen atom or an alkyl group having from 1 to 8 carbon atoms, R 2 is a hydrogen atom, a hydroxy group or an alkyl group having from 1 to 8 carbon atoms and n is an integer from 1 to 10.
Claim 8
Dependent Claim
37 words
The dispersion of claim 5 wherein the phosphonomethyl amine is a compound having the general formula: ##STR5## in which R is an alkyl group having from 1 to 12 carbon atoms and x is zero or 1.
Claim 9
Dependent Claim
27 words
The dispersion of claim 6 wherein the phosphonomethyl amine is a compound having the general formula: ##STR6## in which m is an integer from 2 to 14.
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) | 1984-09-21 | 1985-03-23 | 1985-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-09-21 | 1989-03-23 | 1989-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-09-21 | 1993-03-23 | 1993-09-22 | $7700.00 | Window Closed / Lapsed |