US3960592A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phosphates
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1974-10-21
•
Granted: 1976-06-01
•
Expires: 1994-10-21
Abstract
Abstract There is provided a composition suitable for use as a coating composition which contains a halogen-containing complex phosphate of aluminum, other than a phosphate ester, dissolved in an organic solvent. The complex contains at least one chemically-bound molecule of an alcohol having from one to 10 carbon atoms. The complex is prepared by interacting an aluminum compound, such as aluminum halides, with an alcohol containing one to 10 carbon atoms and with phosphoric acid.
Inventors
- 👤 James Derek Birchall
- 👤 John Edward Cassidy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:12
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/622; C04B35/62227; C04B35/62231; C04B35/62268; C01; C01B; C01B25/00; C01B25/16; C01B25/26; C01B25/36; C01B25/455; C03; C03C; C03C13/00; C03C13/006; C03C25/00; C03C25/10; C03C25/24; C03C25/38; C03C25/42; C04B12/00; C04B12/02; C04B12/022; C04B35/626; C04B35/63; C04B35/6303; C04B35/6306; C04B35/6309; C09; C09D; C09D1/00; C09J; C09J1/00; C23; C23C; C23C22/00; C23C22/73; C23C22/74; D; D01; D01F; D01F11/00; D01F11/10; D01F11/12; D01F11/14; D01F9/00; C03C2217/00; C03C2217/20; C03C2217/21; C03C2217/229; C03C2218/00; C03C2218/10; C03C2218/11; Y; Y10; Y10S; Y10S264/00; Y10S264/19
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
100 words
A composition suitable for use as a coating composition comprising a halogen-containing complex phosphate of aluminium other than a phosphate ester dissolved in an organic solvent, in which the complex contains at least one chemically-bound molecule of an alcohol containing from one to 10 carbon atoms and in which the complex has been prepared by interacting an aluminium compound selected from the group consisting essentially of aluminium halides, aluminium oxyhalides, aluminium alkoxyhalides and aluminium alkoxides with an alcohol containing one to 10 carbon atoms and with phosphoric acid, and when the aluminium compound is an alkoxide, with a halogen acid.
Claim 2
Dependent Claim
100 words
A composition suitable for use as a coating composition comprising a halogen-containing complex phosphate of aluminium other than a phosphate ester dissolved in an organic solvent, in which the complex contains at least one chemically-bound molecule of an alcohol containing from one to 10 carbon atoms and in which the complex has been prepared by interacting an aluminium compound selected from the group consisting essentially of aluminium halides, aluminium oxyhalides, aluminium alkoxyhalides and aluminium alkoxides with an alcohol containing one to 10 carbon atoms and with phosphoric acid, and when the aluminium compound is an alkoxide, with a halogen acid.
Claim 3
Dependent Claim
13 words
A composition as claimed in claim 1 wherein the alcohol is ethyl alcohol.
Claim 4
Dependent Claim
29 words
A composition as claimed in claim 1 wherein the ratio of the number of gram atoms of aluminium to the number of gram atoms of phosphorus is substantially 1:1.
Claim 5
Dependent Claim
29 words
A composition as claimed in claim 1 wherein the ratio of the number of gram atoms of aluminium to the number of gram atoms of halogen is substantially 1:1.
Claim 6
Dependent Claim
22 words
A composition as claimed in claim 1 wherein the complex phosphate has the empirical formula AlPClH 25 C 8 O 8 .
Claim 7
Dependent Claim
22 words
A composition as claimed in claim 1 wherein the complex phosphate has the empirical formula AlBrH 28 C 8 O 8 .
Claim 8
Dependent Claim
20 words
A composition as claimed in claim 1 wherein the organic solvent contains an alcohol containing one to five carbon atoms.
Claim 9
Dependent Claim
16 words
A composition as claimed in claim 7 wherein the alcohol is methyl alcohol or ethyl alcohol.
References Cited (Backward Citations)
US2885417A
Cited
US3870737A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-06-01 | 1979-12-01 | 1980-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-01 | 1983-12-01 | 1984-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-01 | 1987-12-01 | 1988-06-01 | $7700.00 | Window Closed / Lapsed |