Patent US4457790A successfully refreshed from Google Patents.
US4457790A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of metal with group IV B metal ion and derivative of polyalkenylphenol
Assignee: Henkel Corp
•
Filing: 1983-05-09
•
Granted: 1984-07-03
•
Expires: 2003-05-09
Abstract
Abstract A treatment solution for contacting a metal surface comprises: from about 0.001% to about 1.0% of a metal ion selected from the group consisting of titanium, zirconium and hafnium and mixtures thereof; and an effective amount of a soluble or dispersible treatment compound selected from the group consisting of a polymer having the following general formula, acid salts thereof, and mixtures thereof: <IMAGE> where: R1 through R3 are hydrogen or an alkyl group having from 1 to about 5 carbon atoms; each Y is hydrogen, Z, CR4R5OR6, CH2Cl, or an alkyl or aryl group having from 1 to 18 carbon atoms; Z is <IMAGE> R4 through R10 are hydrogen, or an alkyl, aryl, hydroxy-alkyl, amino-alkyl, mercapto-alkyl or phospho-alkyl moiety, said R4 through R10 being of carbon chain lengths up to a length at which the compound is not soluble or dispersible; and n is from 2 up to a number at which the polymer is not soluble or dispersible. Preferably, the solution is an aqueous solution and "Z" moieties are present in sufficient amount that the compound is water soluble or water dispersible. Metal surfaces contacted with the above treatment solution have enhanced corrosion resistance and paint adhesion characteristics.
Inventors
- 👤 Andreas Lindert
- 👤 Jack A. Kramer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:48
CPC Classifications
C; C23; C23C; C23C22/00; C23C22/05; C23C22/06; C23C22/34; C09; C09D; C09D5/00; C09D5/08; C23C22/68; C23C22/82; C23C22/83
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
168 words
An aqueous solution comprising: from about 0.001% to about 1.0% of a metal ion selected from the group consisting of titanium, zirconium, and hafnium ions and mixtures thereof; and an effective amount of a soluble or dispersible compound selected from the group consisting of a polymer having the following general formula, acid salts thereof and mixtures thereof: ##STR8## where: R 1 through R 3 are hydrogen or an alkyl group having from 1 to about 5 carbon atoms; each Y is hydrogen, Z, CR 4 R 5 OR 6 , CH 2 Cl, or an alkyl or aryl group having from 1 to 18 carbon atoms; Z is ##STR9## R 4 through R 10 are hydrogen, or an alkyl, aryl, hydroxy-alkyl, amino-alkyl, mercapto-alkyl or phospho-alkyl moiety, said R 4 through R 10 being of carbon chain lengths up to a length at which the compound is not soluble or dispersible; and n is from 2 up to a number at which the polymer is not soluble or dispersible.
Claim 2
Dependent Claim
168 words
An aqueous solution comprising: from about 0.001% to about 1.0% of a metal ion selected from the group consisting of titanium, zirconium, and hafnium ions and mixtures thereof; and an effective amount of a soluble or dispersible compound selected from the group consisting of a polymer having the following general formula, acid salts thereof and mixtures thereof: ##STR8## where: R 1 through R 3 are hydrogen or an alkyl group having from 1 to about 5 carbon atoms; each Y is hydrogen, Z, CR 4 R 5 OR 6 , CH 2 Cl, or an alkyl or aryl group having from 1 to 18 carbon atoms; Z is ##STR9## R 4 through R 10 are hydrogen, or an alkyl, aryl, hydroxy-alkyl, amino-alkyl, mercapto-alkyl or phospho-alkyl moiety, said R 4 through R 10 being of carbon chain lengths up to a length at which the compound is not soluble or dispersible; and n is from 2 up to a number at which the polymer is not soluble or dispersible.
Claim 3
Dependent Claim
27 words
The solution of claim 1 wherein said solution is an aqueous solution and the molar percent of Z per monomer is from about 10% to about 200%.
Claim 4
Dependent Claim
20 words
The solution of claim 2 wherein the molar percent of Z per monomer is from about 50% to about 150%.
Claim 5
Dependent Claim
15 words
The solution of claim 2 wherein the pH is from about 0.5 to about 12.
Claim 6
Dependent Claim
15 words
The solution of claim 4 wherein the pH is from about 2.0 to about 8.0.
Claim 7
Dependent Claim
20 words
The solution of claim 5 wherein said compound is present in an amount of from about 0.01% to about 5%.
Claim 8
Dependent Claim
20 words
The solution of claim 6 wherein said compound is present in an amount of from about 0.025% to about 1%.
Claim 9
Dependent Claim
9 words
The solution of claim 2 wherein Z is ##STR10##
Claim 10
Dependent Claim
9 words
The sloution of claim 2 wherein Z is ##STR11##
Claim 11
Dependent Claim
20 words
The solution of claim 2 wherein said compound is the reaction product of a poly-4-vinylphenol, formaldehyde and a secondary amine.
Claim 12
Dependent Claim
37 words
The aqueous solution of claim 2 comprising, in addition, from about 0.01% to about 4.0% of a compound selected from the group consisting of thiourea, a derivative of thiourea, tannic acid, a vegetable tannin and mixtures thereof.
Claim 13
Dependent Claim
10 words
The solution of claim 1 comprising, in addition, a pigment.
Claim 14
Dependent Claim
11 words
The solution of claim 12 wherein said solution is a paint.
Claim 15
Dependent Claim
19 words
A process for treating a metal surface which comprises contacting the metal surface with the solution of claim 1.
Claim 16
Dependent Claim
29 words
The process as claimed in claim 14 wherein the solution is an aqueous solution and the molar percent of Z per monomer is from about 10% to about 200%.
Claim 17
Dependent Claim
19 words
The process as claimed in claim 15 wherein the solution has a pH from about 0.5 to about 12.
Claim 18
Dependent Claim
25 words
The process as claimed in claim 16 wherein the compound is present in the solution in an amount of from about 0.01% to about 5%.
Claim 19
Dependent Claim
40 words
The process as claimed in claim 15 wherein the solution also comprises from about 0.01% to about 4.0% of a compound selected from the group consisting of thiourea, a derivative of thiourea, tannic acid, a vegetable tannin and mixtures thereof.
Claim 20
Dependent Claim
14 words
The process as claimed in claim 14 wherein the solution also comprises a pigment.
Claim 21
Dependent Claim
17 words
The process as claimed in claim 14 wherein the metal surface treated is an aluminum metal 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) | 1987-07-03 | 1988-01-02 | 1988-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-07-03 | 1992-01-02 | 1992-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-07-03 | 1996-01-02 | 1996-07-03 | $7700.00 | Window Closed / Lapsed |