US4038166A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrodepositable compositions
Assignee: PPG Industries Inc
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Filing: 1975-11-13
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Granted: 1977-07-26
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Expires: 1995-11-13
Abstract
Abstract Electrodepositable coating compositions having improved appearance, detergent resistance, salt-spray resistance and other improved properties are provided by the combination of a vehicle resin which is a water-dispersible quaternary onium (e.g., ammonium, sulfonium, phosphonium) salt-containing resin in combination with either an amine-aldehyde condensation product or a methylol-phenol ether, or the combination of the two. These compositions electrodeposit on the cathode. The properties of the coatings obtained make them highly useful as industrial finishes, either as primers or as one-coat finishes.
Inventors
- 👤 Joseph F. Bosso
- 👤 Marco Wismer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:20
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/44; C09D5/4419; C09D5/443
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
82 words
A method of electrocoating an electrically conductive surface serving as a cathode in an electrical circuit comprising said cathode, and anode and an aqueous electrodepositable composition wherein the electrodepositable composition comprises an aqueous dispersion of p1 a. a quaternary onium salt group solubilized synthetic organic resin, wherein the onium group is selected from the group consisting of ammonium, sulfonium, and phosphonium, and b. 2 to about 30 percent by weight based on total weight of (a) and (b) of an amine/aldehyde condensate.
Claim 2
Independent Claim
82 words
A method of electrocoating an electrically conductive surface serving as a cathode in an electrical circuit comprising said cathode, and anode and an aqueous electrodepositable composition wherein the electrodepositable composition comprises an aqueous dispersion of p1 a. a quaternary onium salt group solubilized synthetic organic resin, wherein the onium group is selected from the group consisting of ammonium, sulfonium, and phosphonium, and b. 2 to about 30 percent by weight based on total weight of (a) and (b) of an amine/aldehyde condensate.
Claim 3
Dependent Claim
14 words
A method as in claim 1 wherein (b) is an alkylated amino triazine/formaldehyde condensate.
Claim 4
Dependent Claim
12 words
A method as in claim 2 wherein (b) is a benzoquanamine/formaldehyde condensate.
Claim 5
Independent Claim
83 words
A method of electrocoating an electrically conductive surface serving as a cathode in an electrical circuit comprising said cathode, an anode and an aqueous electrodepositable composition wherein the electrodepositable composition comprises an aqueous dispersion of a. a quaternary onium salt group solubilized synthetic organic resin, wherein the onium group is selected from the group consisting of ammonium, sulfonium, and phosphonium, and b. 2 to about 30 percent by weight based on total weight of (a) and (b) of an unsaturated methylol phenyl ether.
Claim 6
Independent Claim
83 words
A method of electrocoating an electrically conductive surface serving as a cathode in an electrical circuit comprising said cathode, an anode and an aqueous electrodepositable composition wherein the electrodepositable composition comprises an aqueous dispersion of a. a quaternary onium salt group solubilized synthetic organic resin, wherein the onium group is selected from the group consisting of ammonium, sulfonium, and phosphonium, and b. 2 to about 30 percent by weight based on total weight of (a) and (b) of an unsaturated methylol phenyl ether.
Claim 7
Dependent Claim
16 words
A method as in claim 4 wherein the dispersions contain in addition c. an amine/aldehyde condensate.
Claim 8
Dependent Claim
14 words
A method as in claim 5 wherein (c) is an alkylated amino triazine/formaldehyde condensate.
Claim 9
Dependent Claim
12 words
A method as in claim 6 wherein (c) is a benzoguanamine/formaldehyde condensate.
Claim 10
Independent Claim
83 words
A method of electrocoating an electrically conductive surface serving as a cathode in an electrical circuit comprising said cathode, an anode and an aqueous electrodepositable composition wherein the electrodepositable composition comprises an aqueous dispersion of a. an epoxy group containing quaternary onium salt group solubilized synthetic organic resin, wherein the onium group is selected from the group consisting of ammonium, sulfonium, and phosphonium, and b. 2 to about 30 percent by weight based on total weight of (a) and (b) of amine/aldehyde condensate.
Claim 11
Independent Claim
83 words
A method of electrocoating an electrically conductive surface serving as a cathode in an electrical circuit comprising said cathode, an anode and an aqueous electrodepositable composition wherein the electrodepositable composition comprises an aqueous dispersion of a. an epoxy group containing quaternary onium salt group solubilized synthetic organic resin, wherein the onium group is selected from the group consisting of ammonium, sulfonium, and phosphonium, and b. 2 to about 30 percent by weight based on total weight of (a) and (b) of amine/aldehyde condensate.
Claim 12
Dependent Claim
14 words
A method as in claim 8 wherein (b) is an alkylated amino triazine/formaldehyde condensate.
Claim 13
Dependent Claim
12 words
A method as in claim 9 wherein (b) is a benzoguanamine/formaldehyde condensate.
Claim 14
Independent Claim
86 words
A method of electrocoating an electrically conductive surface serving as a cathode in an electrical circuit comprising said cathode, an anode and an aqueous electrodepositable composition wherein the electrodepositable composition comprises an aqueous dispersion of a. an epoxy group containing quaternary onium salt group solubilized synthetic organic resin, wherein the onium group is selected from the group consisting of ammonium sulfonium and phosphonium, and b. 2 to about 30 percent by weight based on total weight of (a) and (b) of an unsaturated methylol phenol ether.
Claim 15
Independent Claim
86 words
A method of electrocoating an electrically conductive surface serving as a cathode in an electrical circuit comprising said cathode, an anode and an aqueous electrodepositable composition wherein the electrodepositable composition comprises an aqueous dispersion of a. an epoxy group containing quaternary onium salt group solubilized synthetic organic resin, wherein the onium group is selected from the group consisting of ammonium sulfonium and phosphonium, and b. 2 to about 30 percent by weight based on total weight of (a) and (b) of an unsaturated methylol phenol ether.
Claim 16
Dependent Claim
16 words
A method as in claim 11 wherein the dispersions contain in addition c. an amine/aldehyde condensate.
Claim 17
Dependent Claim
14 words
A method as in claim 12 wherein (c) is an alkylated amino triazine/formaldehyde condensate.
Claim 18
Dependent Claim
13 words
A method as in claim 13 wherein (c) is a benzoguanamine/ formaldehyde condensate.
Claim 19
Dependent Claim
89 words
A method as in claim 1 in which the aqueous dispersion comprises a resinous portion comprising a. a major amount of an epoxy group-containing quaternary ammonium salt group solubilized synthetic organic resin in which the salt is the salt of an acid having a dissociation constant greater than 1 × 10.sup. -5 , and b. a minor amount of a crosslinking resin selected from the group consisting of alkylated amino triazine/formaldehyde resins, unsaturated methylol phenol ethers, and a mixture of alkylated amino triazine/formaldehyde resins and unsaturated methylol phenol ethers.
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) | 1980-07-25 | 1981-01-24 | 1981-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-07-25 | 1985-01-24 | 1985-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-07-25 | 1989-01-24 | 1989-07-26 | $7700.00 | Window Closed / Lapsed |