Patent US4528038A successfully refreshed from Google Patents.
US4528038A
Expired / Lapsed
US
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Organoaluminosiloxane coating compositions and coated substrate
Assignee: General Electric Co
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Filing: 1984-06-28
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Granted: 1985-07-09
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Expires: 2004-06-28
Abstract
Abstract A method is provided for applying an aluminosilicate coating onto a substrate. For example, a superalloy is treated with an organic solvent solution of an aluminosiloxane having an Al/Si ratio having a value of 1 to 5 inclusive which is heated to an elevated temperature.
Inventors
- 👤 Arlene G. Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:00
CPC Classifications
C; C09; C09D; C09D183/00; C09D183/14; C08; C08G; C08G79/00; C08G79/10; C09D185/00
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
90 words
Organoaluminosiloxane coating compositions comprising by weight (A) 100 parts of an inert organic solvent, and (B) 10 to 30 parts of an organoaluminosiloxane oligomer having an Al/Si ratio having a value of 5 to 1 and consisting essentially of ##STR7## units chemically combined with (R 1 ) a SiO.sub.(4-a)/2 units where R is a polyvalent organic radical, R 1 is selected from a C.sub.(1-13) monovalent hydrocarbon radical and substituted C.sub.(1-13) monovalent hydrocarbon radical, Z is selected from --O--, --S-- and --N═, and a has a value of 2.5 to 3.
Claim 2
Dependent Claim
90 words
Organoaluminosiloxane coating compositions comprising by weight (A) 100 parts of an inert organic solvent, and (B) 10 to 30 parts of an organoaluminosiloxane oligomer having an Al/Si ratio having a value of 5 to 1 and consisting essentially of ##STR7## units chemically combined with (R 1 ) a SiO.sub.(4-a)/2 units where R is a polyvalent organic radical, R 1 is selected from a C.sub.(1-13) monovalent hydrocarbon radical and substituted C.sub.(1-13) monovalent hydrocarbon radical, Z is selected from --O--, --S-- and --N═, and a has a value of 2.5 to 3.
Claim 3
Dependent Claim
20 words
A composition in accordance with claim 1 where R is ##STR8## R 1 is CH 3 and Z is O.
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) | 1988-07-08 | 1989-01-07 | 1989-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-07-08 | 1993-01-07 | 1993-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-07-08 | 1997-01-07 | 1997-07-09 | $7700.00 | Window Closed / Lapsed |