US4305994A
Expired / Lapsed
US
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Process for forming multilayer coating
Assignee: Kansai Paint Co Ltd
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Filing: 1980-08-12
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Granted: 1981-12-15
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Expires: 2000-08-12
Abstract
Abstract In a process for forming a multilayer coated film which comprises coating a multilayer coat-forming paint on the surface of a substrate to form a multilayer coated film thereon, the improvement wherein prior to the coating, the surface of the substrate is treated with a solution containing at least one onium compound selected from compounds of formulae (I) and (II) below ##STR1## wherein Y represents a nitrogen, phosphorus or arsenic atom, R 1 , R 2 , R 3 and R 4 are identical or different and each represents a hydrogen atom or an organic group having not more than 8 carbon atoms, and X.sub.⊖ represents an anion.
Inventors
- 👤 Heihachi Murase
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:02
CPC Classifications
B; B05; B05D; B05D3/00; B05D3/10; B05D3/102; B05D7/00; B05D7/50; B05D7/52; B05D7/54; B05D2202/00; B05D2451/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511; Y10T428/31529; Y10T428/31678; Y10T428/31681
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
107 words
In a process for forming a multilayer coated film which comprises coating a multilayer coat-forming paint on the surface of a substrate to form a multilayer coated film thereon, the improvement wherein prior to the coating, the surface of the substrate is treated with a solution containing at least one onium compound selected from compounds of formulae (I) and (II) below ##STR5## wherein Y represents a nitrogen, phosphorus or arsenic atom, R 1 ,R 2 , R 3 and R 4 are identical or different and each represents a hydrogen atom or an organic group having not more than 8 carbon atoms, and X.sup.⊖ represents an anion.
Claim 2
Dependent Claim
107 words
In a process for forming a multilayer coated film which comprises coating a multilayer coat-forming paint on the surface of a substrate to form a multilayer coated film thereon, the improvement wherein prior to the coating, the surface of the substrate is treated with a solution containing at least one onium compound selected from compounds of formulae (I) and (II) below ##STR5## wherein Y represents a nitrogen, phosphorus or arsenic atom, R 1 ,R 2 , R 3 and R 4 are identical or different and each represents a hydrogen atom or an organic group having not more than 8 carbon atoms, and X.sup.⊖ represents an anion.
Claim 3
Dependent Claim
39 words
The process of claim 1 wherein said organic group is a hydrocarbon group having not more than 8 carbon atoms and containing a hetero atom selected from the group consisting of hydroxylic and etheric oxygen atoms and halogen atoms.
Claim 4
Dependent Claim
77 words
The process of claim 2 wherein said organic group is selected from the class consisting of alkyl groups having 1 to 6 carbon atoms, cycloalkyl groups having 5 to 8 carbon atoms, cycloalkyl-alkyl groups having 5 to 8 carbon atoms, a phenyl group, a toluyl group, a xylyl group, a benzyl group, hydroxyalkyl groups having 1 to 8 carbon atoms, alkoxyalkyl groups having 2 to 8 carbon atoms and haloalkyl groups having 1 to 6 carbon atoms.
Claim 5
Dependent Claim
55 words
The process of claim 3 wherein said organic group is selected from the class consisting of alkyl groups having 1 to 4 carbon atoms, hydroxyalkyl groups having 1 to 4 carbon atoms, alkoxyalkyl groups having 2 to 4 carbon atoms, haloalkyl groups having 1 to 4 carbon atoms, a phenyl group and a benzyl group.
Claim 6
Dependent Claim
56 words
The process of claim 1 wherein said anion X.sup.⊖ is selected from the group consisting of PO 4 3 ⊖, HPO 4 2 ⊖, H 2 PO 4 .sup.⊖, SO 4 2 ⊖, NO 3 .sup.⊖, OH.sup.⊖, CH 3 COO.sup.⊖, C 2 H 5 COO.sup.⊖, CH 3 CH(OH)COO.sup.⊖ and C 6 H 5 SO 3 .sup.⊖.
Claim 7
Dependent Claim
12 words
The process of claim 5 wherein said anion is a halogen ion.
Claim 8
Dependent Claim
17 words
The process of claim 1 wherein said onium compound is selected from the group consisting of ##STR6##
Claim 9
Dependent Claim
99 words
The compound of claim 1 wherein said onium compound is an ammonium or phosphonium compound of the following formula ##STR7## wherein Z represents a nitrogen or phosphorus atom, R 11 , R 21 , R 31 , and R 41 are identical or different and each represents a lower alkyl group having 1 to 4 carbon atoms, a hydroxyalkyl group having 1 to 4 carbon atoms, an alkoxyalkyl group having 2 to 4 carbon atoms, a haloalkyl group having 1 to 4 carbon atoms, a phenyl group or a benzyl group, and X 1 .sup.⊖ represents a halogen ion.
Claim 10
Dependent Claim
22 words
The process of claim 1 wherein said solution contains said onium compound in a concentration of 0.01 to 30 % by weight.
Claim 11
Dependent Claim
20 words
The process of claim 1 wherein said treatment is effected by coating the surface of said substrate with said solution.
Claim 12
Dependent Claim
23 words
The process of claim 10 wherein said onium compound is coated at a rate of about 0.001 to about 1.5 g/m 2 .
Claim 13
Dependent Claim
19 words
The process of claim 1 wherein said solution contains a mono-, di- or tri-(hydroxy lower alkyl)amine or phosphoric acid.
Claim 14
Dependent Claim
14 words
An article coated by the process of any one of claims 1 to 12.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-12-14 | 1985-06-15 | 1985-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-12-14 | 1989-06-15 | 1989-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-12-14 | 1993-06-15 | 1993-12-15 | $7700.00 | Window Closed / Lapsed |