US3839078A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of coating substrates
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1971-12-03
•
Granted: 1974-10-01
•
Expires: 1991-12-03
Abstract
Abstract A method of coating a substrate with aluminum phosphate comprising coating the substrate with a composition capable of generating aluminum phosphate on drying and heating the application and drying of the coating composition being effected under conditions such that the surface tension of the coating composition is not allowed to exceed the critical wetting tension of the substrate.
Inventors
- 👤 J Birchall
- 👤 J Cassidy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:51
CPC Classifications
A; A01; A01G; A01G9/00; A01G9/14; A01G9/1407; B; B05; B05D; B05D3/00; B05D3/10; C; C08; C08G; C08G79/00; C08J; C08J5/00; C08J5/12; C08J7/00; C08J7/04; C08J7/042; C08J7/0423; C08J7/043; C08J7/044; C08J7/046; C08J7/048; C08J7/052; C08J7/054; C08J7/056; C08J7/06; D; D21; D21H; D21H19/00; D21H19/10; D21H19/14; D21H19/24; D21H19/28; D21H19/30; C03; C03C; C03C2217/00; C03C2217/20; C03C2217/21; C03C2217/229; C03C2218/00; C03C2218/10; C03C2218/11; Y; Y02; Y02A; Y02A40/00; Y02A40/10; Y02A40/25
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
109 words
A METHOD OF COATING A SUBSTRATE WITH ALUMINUM PHOSPHATE OR A MATERIAL CONTAINING ALUMINUM PHOSPHATE COMPRISING APPLYING TO THE SUBSTRATE A COATING OF A SOLUTION OF A HALOGEN-CONTAINING COMPLEX PHOSPHATE OF ALUMINUM CONTAINING AT LEAST ONE CHEMICALLY-BOUND MOLECULE OF A HYDROXY COMPOUND ROH WHERE R IS A HYDROGEN ATOM OR AN ORGANIC GROUP, DRYING SAID COATING TO REMOVE SOLVENT FROM THE COATING COMPOSITION AND THEN CURING THE SAID COATING COMPOSITION AT A TEMPERATURE OF AT LEAST 80*C., THE STEPS OF APPLYING AND DRYING THE COATING COMPOSITION BEING EFFECTED UNDER CONDITIONS SUCH THAT THE SURFACE TENSION OF THE COATING COMPOSITION DOES NOT EXCEED THE CRITICAL WETTING TENSION OF THE SUBSTRATE.
Claim 2
Independent Claim
109 words
A METHOD OF COATING A SUBSTRATE WITH ALUMINUM PHOSPHATE OR A MATERIAL CONTAINING ALUMINUM PHOSPHATE COMPRISING APPLYING TO THE SUBSTRATE A COATING OF A SOLUTION OF A HALOGEN-CONTAINING COMPLEX PHOSPHATE OF ALUMINUM CONTAINING AT LEAST ONE CHEMICALLY-BOUND MOLECULE OF A HYDROXY COMPOUND ROH WHERE R IS A HYDROGEN ATOM OR AN ORGANIC GROUP, DRYING SAID COATING TO REMOVE SOLVENT FROM THE COATING COMPOSITION AND THEN CURING THE SAID COATING COMPOSITION AT A TEMPERATURE OF AT LEAST 80*C., THE STEPS OF APPLYING AND DRYING THE COATING COMPOSITION BEING EFFECTED UNDER CONDITIONS SUCH THAT THE SURFACE TENSION OF THE COATING COMPOSITION DOES NOT EXCEED THE CRITICAL WETTING TENSION OF THE SUBSTRATE.
Claim 3
Dependent Claim
28 words
A method as claimed in claim 1 wherein the hydroxy compound in the halogen-containing complex phosphate of aluminium is an aliphatic alcohol containing one to 10 carbon atoms.
Claim 4
Dependent Claim
13 words
A method as claimed in claim 2 wherein the hydroxy compound is ethanol.
Claim 5
Dependent Claim
15 words
A method as claimed in claim 1 wherein the complex phosphate of aluminium contains chlorine.
Claim 6
Dependent Claim
18 words
A method as claimed in claim 1 wherein the complex phosphate of aluminium has the empirical formula AlPClH25C8O8.
Claim 7
Dependent Claim
22 words
A method as claimed in claim 1 wherein the coating composition comprises the halogen-containing complex of aluminium dissolved in an organic solvent.
Claim 8
Dependent Claim
12 words
A method as claimed in claim 6 wherein the solvent is methanol.
Claim 9
Dependent Claim
28 words
A method as claimed in claim 1 wherein the concentration of the halogen-containing complex phosphate of aluminium in the coating composition is 0.1 to 30 percent by weight.
Claim 10
Dependent Claim
17 words
A method as claimed in claim 8 wherein said concentration is 2 to 10 percent by weight.
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) | 1977-09-30 | 1978-04-01 | 1978-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-30 | 1982-04-01 | 1982-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-30 | 1986-04-01 | 1986-10-01 | $7700.00 | Window Closed / Lapsed |