Patent US3937679A successfully refreshed from Google Patents.
US3937679A
Expired / Lapsed
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Electrodepositable compositions
Assignee: PPG Industries Inc
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Filing: 1972-08-04
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Granted: 1976-02-10
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Expires: 1992-08-04
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
2026-10-23 11:18
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/44; C09D5/4419; C09D5/443; C09D5/4434; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/4007; C08G59/4078; C08G59/50; C08G59/56; C08G59/58; Y; Y10; Y10S; Y10S524/00; Y10S524/901
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
91 words
A coating composition electrodepositable on a cathode comprising an aqueous dispersion comprising a. an acid salt solubilized quaternary onium salt group containing synthetic organic resin where the onium group is selected from the group consisting of ammonium, sulfonium and phosphonium, b. an amine/aldehyde condensate and c. an unsaturated methylol phenol ether the combined weight of (b) and (c) being from about 2% to about 30% by weight of the combined weight of (a), (b) and (c), and the weight ratio of (b) to (c) being between about 5:1 and about 1:5.
Claim 2
Dependent Claim
91 words
A coating composition electrodepositable on a cathode comprising an aqueous dispersion comprising a. an acid salt solubilized quaternary onium salt group containing synthetic organic resin where the onium group is selected from the group consisting of ammonium, sulfonium and phosphonium, b. an amine/aldehyde condensate and c. an unsaturated methylol phenol ether the combined weight of (b) and (c) being from about 2% to about 30% by weight of the combined weight of (a), (b) and (c), and the weight ratio of (b) to (c) being between about 5:1 and about 1:5.
Claim 3
Dependent Claim
45 words
A coating composition, as in claim 1, wherein the methylol phenol ether corresponds to the formula ##SPC3## where n is an integer from 1 to 3 and R is an unsaturated aliphatic group or a halogen-substituted unsaturated aliphatic group containing at least 3 carbon atoms.
Claim 4
Dependent Claim
15 words
A coating composition, as in claim 1, wherein the amine/aldehyde condensate is an alkylated aminotriazine/formaldehyde.
Claim 5
Dependent Claim
15 words
A coating composition, as in claim 1, wherein the amine/aldehyde condensate is a benzoquanamine/formaldehyde condensate.
Claim 6
Dependent Claim
59 words
A coating composition, as in claim 1, where (a) is a quaternary ammonium salt group solubilized synthetic organic resin in which the salt is a salt of an acid having a dissociation constant greater than 1 × 10.sup. -5 and where the amine/aldehyde condensate is selected from the group consisting of an alkylated aminotriazine/formaldehyde condensate and a benzoquanamine/formaldehyde condensate.
Claim 7
Dependent Claim
34 words
A coating composition, as in claim 1, where the resin (a) is an epoxy group containing synthetic organic resin where the onium group is selected from the group consisting of ammonium, sulfonium and phosphonium.
Claim 8
Dependent Claim
45 words
A coating composition, as in claim 6, wherein the methylol phenol ether corresponds to the formula ##SPC4## where n is an integer from 1 to 3 and R is an unsaturated aliphatic group or a halogen-substituted unsaturated aliphatic group containing at least 3 carbon atoms.
Claim 9
Dependent Claim
15 words
A coating composition, as in claim 6, wherein the amine/aldehyde condensate is an alkylated aminotriazine/formaldehyde.
Claim 10
Dependent Claim
15 words
A coating composition, as in claim 6, wherein the amine/aldehyde condensate is a benzoquanamine/formaldehyde condensate.
Claim 11
Dependent Claim
63 words
A coating composition, as in claim 6, where (a) is an epoxy group containing a quaternary ammonium salt group solubilized synthetic organic resin in which the salt is a salt of an acid having a dissociation constant greater than 1 × 10.sup. -5 and where the amine/aldehyde condensate is selected from the group consisting of an alkylated aminotriazine/formaldehyde condensate and a benzoquanamine/formaldehyde condensate.
Claim 12
Dependent Claim
65 words
A coating composition electrodepositable on a cathode comprising an aqueous dispersion comprising a. an acid salt solubilized quaternary onium salt group containing synthetic organic resin where the onium group is selected from the group consisting of ammonium, sulfonium and phosphonium and b. from about 2 to about 30% by weight based on the combined weight of (a) and (b) of an unsaturated methylol pehnol ether.
Claim 13
Dependent Claim
65 words
A coating composition electrodepositable on a cathode comprising an aqueous dispersion comprising a. an acid salt solubilized quaternary onium salt group containing synthetic organic resin where the onium group is selected from the group consisting of ammonium, sulfonium and phosphonium and b. from about 2 to about 30% by weight based on the combined weight of (a) and (b) of an unsaturated methylol pehnol ether.
Claim 14
Dependent Claim
45 words
A coating composition, as in claim 11, wherein the methylol phenol ether corresponds to the formula ##SPC5## where n is an integer from 1 to 3 and R is an unsaturated aliphatic group or a halogen-substituted unsaturated aliphatic group containing at least 3 carbon atoms.
Claim 15
Dependent Claim
15 words
A coating composition, as in claim 11, where the resin (a) contains an epoxy group.
Claim 16
Dependent Claim
40 words
A coating composition, as in claim 11, where (a) is a quaternary ammonium salt group solubilized synthetic organic resin in which the salt is a salt of an acid having a dissociation constant greater than 1 × 10.sup. -5 .
Claim 17
Dependent Claim
15 words
A coating composition, as in claim 14, where the resin (a) contains an epoxy group.
Claim 18
Dependent Claim
48 words
A coating composition electrodepositable on a cathode comprising an aqueous dispersion comprising a. an acid salt solubilized quaternary sulfonium salt group containing synthetic organic resin, and b. from about 2% to about 30% by weight based on the combined weight of (a) and (b) of an amine/aldehyde condensate.
Claim 19
Dependent Claim
48 words
A coating composition electrodepositable on a cathode comprising an aqueous dispersion comprising a. an acid salt solubilized quaternary sulfonium salt group containing synthetic organic resin, and b. from about 2% to about 30% by weight based on the combined weight of (a) and (b) of an amine/aldehyde condensate.
Claim 20
Dependent Claim
15 words
A coating composition, as in claim 16, wherein the amine/aldehyde condensate is an alkylated aminotriazine/formaldehyde.
Claim 21
Dependent Claim
15 words
A coating composition, as in claim 16, wherein the amine/aldehyde condensate is a benzoquanamine/formaldehyde condensate.
Claim 22
Dependent Claim
48 words
A coating composition electrodepositable on a cathode comprising an aqueous dispersion comprising a. an acid salt solubilized quaternary phosphonium salt group containing synthetic organic resin, and b. from about 2% to about 30% by weight based on the combined weight of (a) and (b) of an amine/aldehyde condensate.
Claim 23
Dependent Claim
48 words
A coating composition electrodepositable on a cathode comprising an aqueous dispersion comprising a. an acid salt solubilized quaternary phosphonium salt group containing synthetic organic resin, and b. from about 2% to about 30% by weight based on the combined weight of (a) and (b) of an amine/aldehyde condensate.
Claim 24
Dependent Claim
15 words
A coating composition, as in claim 19, wherein the amine/aldehyde condensate is an alkylated aminotriazine/formaldehyde.
Claim 25
Dependent Claim
15 words
A coating composition, as in claim 19, wherein the amine/aldehyde condensate is a benzoquanamine/formaldehyde condensate.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-02-09 | 1979-08-11 | 1980-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-02-09 | 1983-08-11 | 1984-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-02-09 | 1987-08-11 | 1988-02-10 | $7700.00 | Window Closed / Lapsed |