US4246087A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for cationic electrodeposition
Assignee: Wyandotte Paint Products Co
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Filing: 1978-11-22
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Granted: 1981-01-20
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Expires: 1998-11-22
Abstract
Abstract The present invention concerns a coating composition comprising a dispersion, solution or suspension of a coating composition containing a nitrogen containing organic material which when heat cured contains at least 75% less amine value than present in the material prior to curing. The present invention also concerns a method of electrodepositing a film forming substance onto a substrate by employing an anode, a cathode and an electrolyte therebetween comprising the steps: A. providing an aqueous electrolyte containing said composition described above; b. closing the circuit between the anode and the cathode; and c. depositing the film forming composition on the cathodic substrate.
Inventors
- 👤 Ivan H. Tsou
- 👤 Marc L. Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:59
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/14; C08G59/1433; C08G59/1477; C08G59/1438; C08G59/1455; C08G59/1461; C08G59/1472; C08G59/18; C08G59/40; C09; C09D; C09D163/00; C09D5/00; C09D5/44; C09D5/4488; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511; Y10T428/31529; Y10T428/31678
Claims Analysis
Total Claims: 35
Claim 1
Independent Claim
115 words
The method of electrodepositing a film forming substance onto a substrate by employing an anode, a cathode and an electrolyte therebetween comprising the steps: a. providing an aqueous electrolyte containing a coating composition comprising a dispersion, solution or suspension of a coating composition containing a nitrogen heterocyclic organic material which contains no NCO groups; b. closing the circuit between the anode and the cathode; c. depositing the film forming composition on the cathodic substrate; and d. curing the composition by subjecting the coated substrate to heat and removing the amine value such that at least 75% less amine value is present in the nitrogen containing organic material than present in the material prior to curing.
Claim 2
Independent Claim
115 words
The method of electrodepositing a film forming substance onto a substrate by employing an anode, a cathode and an electrolyte therebetween comprising the steps: a. providing an aqueous electrolyte containing a coating composition comprising a dispersion, solution or suspension of a coating composition containing a nitrogen heterocyclic organic material which contains no NCO groups; b. closing the circuit between the anode and the cathode; c. depositing the film forming composition on the cathodic substrate; and d. curing the composition by subjecting the coated substrate to heat and removing the amine value such that at least 75% less amine value is present in the nitrogen containing organic material than present in the material prior to curing.
Claim 3
Dependent Claim
20 words
The method of claim 1 wherein the nitrogen containing material is a water solubilized quaternary ammonium salt of an acid.
Claim 4
Dependent Claim
22 words
The method of claim 2 wherein the nitrogen material is prepared by reacting an oxirane containing material with a tertiary amine salt.
Claim 5
Dependent Claim
14 words
The method of claim 3 wherein the oxirane containing material is an epoxy resin.
Claim 6
Dependent Claim
17 words
The method of claim 3 wherein the oxirane containing material is a copolymer of an acrylic resin.
Claim 7
Dependent Claim
20 words
The method of claim 3 wherein the ratio of equivalents of oxirane rings to nitrogen ranges from 0.1-10 to 1.
Claim 8
Dependent Claim
20 words
The method of claim 2 wherein the nitrogen containing organic material is comprised of a water solubilized nitrogen heterocyclic material.
Claim 9
Dependent Claim
37 words
The method of claim 7 wherein the nitrogen heterocyclic material is comprised of a 5 to 7 membered ring with 1 to 3 nitrogen atoms within the ring and the alkyl, hydroxy, alkoxy and keto derivatives thereof.
Claim 10
Dependent Claim
13 words
The method of claim 8 wherein the nitrogen heterocyclic material is N-alkyl morpholine.
Claim 11
Dependent Claim
71 words
The method of claim 2 wherein the nitrogen material contains Formula B therein, wherein Formula B is: ##STR10## wherein Z is independently selected from the group consisting of hydrogen, hydroxyl, alkyl ether of from 1 to 6 carbon atoms, acyloxy of from 1 to 6 carbon atoms; ##STR11## where R' is a saturated alkylene group of from 2 to 4 carbon atoms and n is a number from 1 to 6.
Claim 12
Dependent Claim
15 words
The method of claim 1 further comprising an effective amount of a nitrogenous cross-linking material.
Claim 13
Dependent Claim
16 words
The method of claim 1 wherein the aqueous electrolyte has a pH of at least 7.
Claim 14
Dependent Claim
15 words
The method of claim 1 wherein the coating composition contains a phenol formaldehyde cross-linking agent.
Claim 15
Dependent Claim
22 words
The method of claim 1 wherein the nitrogen heterocyclic containing material is further characterized as containing unsaturation from a fatty acid moiety.
Claim 16
Dependent Claim
10 words
An article produced according to the process of claim 1.
Claim 17
Dependent Claim
17 words
The method of claim 1 wherein the coating compositions contains as a cross-linking agent a melamine agent.
Claim 18
Independent Claim
58 words
The method of coating a substrate comprising applying a dispersion, solution or suspension of a coating composition containing a nitrogen heterocyclic organic material which contains no NCO groups onto a substrate and heating the coated substrate, thereby curing the coating composition wherein the cured composition contains 75% less amine value than present in the material prior to curing.
Claim 19
Independent Claim
58 words
The method of coating a substrate comprising applying a dispersion, solution or suspension of a coating composition containing a nitrogen heterocyclic organic material which contains no NCO groups onto a substrate and heating the coated substrate, thereby curing the coating composition wherein the cured composition contains 75% less amine value than present in the material prior to curing.
Claim 20
Dependent Claim
15 words
The method of claim 17 wherein the coating composition contains melamine and an acid catalyst.
Claim 21
Dependent Claim
20 words
The method of claim 17 wherein the nitrogen containing material is a water solubilized quaternary ammonium salt of an acid.
Claim 22
Dependent Claim
22 words
The method of claim 19 wherein the nitrogen material is prepared by reacting an oxirane containing material with a tertiary amine salt.
Claim 23
Dependent Claim
14 words
The method of claim 20 wherein the oxirane containing material is an epoxy resin.
Claim 24
Dependent Claim
17 words
The method of claim 20 wherein the oxirane containing material is a copolymer of an acrylic resin.
Claim 25
Dependent Claim
20 words
The method of claim 20 wherein the ratio of equivalents of oxirane rings to nitrogen ranges from 0.1-10 to 1.
Claim 26
Dependent Claim
20 words
The method of claim 19 wherein the nitrogen containing organic material is comprised of a water solubilized nitrogen heterocyclic material.
Claim 27
Dependent Claim
37 words
The method of claim 24 wherein the nitrogen heterocyclic material is comprised of a 5 to 7 membered ring with 1 to 3 nitrogen atoms within the ring and the alkyl, hydroxy, alkoxy and keto derivatives thereof.
Claim 28
Dependent Claim
13 words
The method of claim 25 wherein the nitrogen heterocyclic material is N-alkyl morpholine.
Claim 29
Dependent Claim
71 words
The composition of claim 19 wherein the nitrogen material contains Formula B therein, wherein Formula B is: ##STR12## wherein Z is independently selected from the group consisting of hydrogen, hydroxyl, alkyl ether of from 1 to 6 carbon atoms, acyloxy of from 1 to 6 carbon atoms; ##STR13## where R' is a saturated alkylene group of from 2 to 4 carbon atoms and n is a number from 1 to 6.
Claim 30
Dependent Claim
15 words
The method of claim 17 further comprising an effective amount of a nitrogenous cross-linking material.
Claim 31
Dependent Claim
16 words
The method of claim 17 wherein the coating composition has a pH of at least 7.
Claim 32
Dependent Claim
16 words
The method of claim 17 wherein the coating composition further comprises a phenol formaldehyde cross-linking agent.
Claim 33
Dependent Claim
10 words
An article produced according to the process of claim 17.
Claim 34
Dependent Claim
22 words
The method of claim 17 wherein the nitrogen heterocyclic containing material is further characterized as containing unsaturation from a fatty acid moiety.
Claim 35
Dependent Claim
17 words
The method of claim 17 wherein the coating composition contains as a cross-linking agent a melamine agent.
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) | 1984-01-20 | 1984-07-21 | 1985-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-01-20 | 1988-07-21 | 1989-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-01-20 | 1992-07-21 | 1993-01-20 | $7700.00 | Window Closed / Lapsed |