Patent US4402167A successfully refreshed from Google Patents.
US4433015A
Expired / Lapsed
US
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Treatment of metal with derivative of poly-4-vinylphenol
Assignee: Occidental Chemical Corp
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Filing: 1982-04-07
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Granted: 1984-02-21
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Expires: 2002-04-07
Abstract
Abstract An aqueous solution comprising an effective amount of a water soluble or water dispersible compound selected from the group consisting of a polymer having the following general formula, acid salts thereof and mixtures thereof: ##STR1## where: n=from 2 up to a number at which the polymer is not water soluble or water dispersible; X=H or Z; ##STR2## Y=H, Z, Cr 5 R 6 OR 7 , or CH 2 Cl; R 1 through R 7 =H, or an alkyl, aryl, hydroxy-alkyl, amino-alkyl, mercaptoalkyl or phospho-alkyl moiety, said R 1 through R 7 being of carbon chain lengths up to a length at which the compound is not water soluble or dispersible; wherein at least one of X or Y=Z and the Z moieties are present in sufficient amount that the compound is water soluble or water dispersible. This solution is useful in the treatment of metal surfaces to impart corrosion resistance and paint adhesion characteristics thereto.
Inventors
- 👤 Andreas Lindert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:41
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C23F11/12; C23C; C23C22/00; C23C22/82; C23C22/83; B; B05; B05D; B05D7/00; B05D7/14; B05D7/16; C09; C09D; C09D5/00; C09D5/08; B05D3/00; B05D3/10; B05D3/102
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
144 words
A stable aqueous composition comprising an effective amount of a water soluble or water dispersible compound selected from the group consisting of a polymer having the following general formula, acid salts thereof and mixtures thereof: ##STR8## where: n=from 2 up to a number at which the polymer is not water soluble or water dispersible; X=H or Z; ##STR9## Y=H, Z, CR 5 R 6 OR 7 , or CH 2 Cl; R 1 through R 7 =H, or an alkyl, aryl, hydroxy-alkyl, amino-alkyl, mercapto-alkyl or phospho-alkyl moiety, said R 1 through R 7 being of carbon chain lengths up to a length at which the compound is not water soluble or dispersible; wherein at least one of X or Y=Z and the Z moieties are present in sufficient amount that the compound is water soluble or water dispersible to form such stable aqueous composition.
Claim 2
Dependent Claim
144 words
A stable aqueous composition comprising an effective amount of a water soluble or water dispersible compound selected from the group consisting of a polymer having the following general formula, acid salts thereof and mixtures thereof: ##STR8## where: n=from 2 up to a number at which the polymer is not water soluble or water dispersible; X=H or Z; ##STR9## Y=H, Z, CR 5 R 6 OR 7 , or CH 2 Cl; R 1 through R 7 =H, or an alkyl, aryl, hydroxy-alkyl, amino-alkyl, mercapto-alkyl or phospho-alkyl moiety, said R 1 through R 7 being of carbon chain lengths up to a length at which the compound is not water soluble or dispersible; wherein at least one of X or Y=Z and the Z moieties are present in sufficient amount that the compound is water soluble or water dispersible to form such stable aqueous composition.
Claim 3
Dependent Claim
21 words
The aqueous composition of claim 1 wherein the molar percent of Z per monomer is from about 10% to about 200%.
Claim 4
Dependent Claim
21 words
The aqueous composition of claim 1 wherein the molar percent of Z per monomer is from about 50% to about 150%.
Claim 5
Dependent Claim
16 words
The aqueous composition of claim 1 wherein the pH is from about 0.5 to about 12.
Claim 6
Dependent Claim
16 words
The aqueous composition of claim 4 wherein the pH is from about 2.0 to about 8.0.
Claim 7
Dependent Claim
21 words
The aqueous composition of claim 4 wherein said compound is present in an amount of from about 0.01% to about 5%.
Claim 8
Dependent Claim
21 words
The aqueous composition of claim 6 wherein said compound is present in an amount of from about 0.1% to about 1%.
Claim 9
Dependent Claim
21 words
The aqueous composition of claim 1 wherein said compound is present in an amount of from about 5% to about 30%.
Claim 10
Dependent Claim
10 words
The aqueous composition of claim 1 wherein Z is ##STR10##
Claim 11
Dependent Claim
10 words
The aqueous composition of claim 1 wherein Z is ##STR11##
Claim 12
Dependent Claim
21 words
The aqueous composition of claim 1 wherein said compound is the reaction product of a poly-4-vinylphenol, formaldehyde and a secondary amine.
Claim 13
Dependent Claim
47 words
The process of treating a metal surface comprising contacting a metal surface with a composition of any of claims 2 through 11 for a period of time sufficient to impart improved corrosion resistance and/or paint adhesion characteristics to the metal surface and, thereafter, drying the thus-treated surface.
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) | 1987-02-20 | 1987-08-22 | 1988-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-02-20 | 1991-08-22 | 1992-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-02-20 | 1995-08-22 | 1996-02-21 | $7700.00 | Window Closed / Lapsed |