US4411950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Autodeposited coatings with increased surface slip
Assignee: Henkel Corp
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Filing: 1981-05-18
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Granted: 1983-10-25
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Expires: 2001-05-18
Abstract
Abstract In a process wherein a resinous coating is formed on a metallic surface by immersing the surface in an acidic aqueous coating composition containing dispersed particles of resin, wherein said composition forms on said surface a resinous coating which increases in thickness the longer the surface is immersed in the composition and wherein the resinous coating is contacted with an aqueous solution containing Cr in order to improve properties (e.g. corrosion resistance), the surface slip of the applied coating is increased by having dispersed in the Cr-containing solution a polymer which has a lower coefficient of friction than the applied resinous coating.
Inventors
- 👤 Timothy J. C. Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:56
CPC Classifications
B; B05; B05D; B05D7/00; B05D7/14; B05D7/142; B05D7/144; C; C09; C09D; C09D5/00; C09D5/08; C09D5/088; Y; Y10; Y10T; Y10T428/00; Y10T428/25; Y10T428/254; Y10T428/256; Y10T428/31504; Y10T428/31678; Y10T428/31692
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
86 words
A metallic surface having thereon a resin coating comprising the fusion product of autodeposited resin particles and fused and concentrated in the surface layer thereof resin particles, which are different than said autodeposited resin particles in having a coefficient of friction lower than that of the resin of said autodeposited resin particles, the amount of said different resin particles in the resin coating being such that said resin coating has a higher degree of surface slip than a resin coating formed from said autodeposited resin particles.
Claim 2
Dependent Claim
86 words
A metallic surface having thereon a resin coating comprising the fusion product of autodeposited resin particles and fused and concentrated in the surface layer thereof resin particles, which are different than said autodeposited resin particles in having a coefficient of friction lower than that of the resin of said autodeposited resin particles, the amount of said different resin particles in the resin coating being such that said resin coating has a higher degree of surface slip than a resin coating formed from said autodeposited resin particles.
Claim 3
Dependent Claim
25 words
A surface according to claim 1 wherein said fusion product includes chromium in an amount effective to improve the corrosion-resistant properties of said resin coating.
Claim 4
Dependent Claim
15 words
A surface according to claim 1 or 2 wherein said different resin particles comprise polyethylene.
Claim 5
Dependent Claim
15 words
A surface according to claims 1 or 2 wherein said different resin particles comprise polytetrafluoroethylene.
Claim 6
Dependent Claim
17 words
A surface according to claims 1 or 2 wherein said different resin particles comprise polyethylene and polytetrafluoroethylene.
Claim 7
Dependent Claim
98 words
A metallic surface having thereon a resin coating comprising the fusion product of autodeposited resin particles, said particles prepared by copolymerizing styrene, butadiene, vinylidene chloride, and methacrylic acid, and fused and concentrated in the surface layer thereof resin particles which are different than said autodeposited resin particles in having a coefficient of friction lower than that of the resin of said autodeposited resin particles, the amount of said different resin particles in the resin coating being such that said resin coating has a higher degree of surface slip than a resin coating formed from said autodeposited resin particles.
Claim 8
Dependent Claim
98 words
A metallic surface having thereon a resin coating comprising the fusion product of autodeposited resin particles, said particles prepared by copolymerizing styrene, butadiene, vinylidene chloride, and methacrylic acid, and fused and concentrated in the surface layer thereof resin particles which are different than said autodeposited resin particles in having a coefficient of friction lower than that of the resin of said autodeposited resin particles, the amount of said different resin particles in the resin coating being such that said resin coating has a higher degree of surface slip than a resin coating formed from said autodeposited resin particles.
Claim 9
Dependent Claim
13 words
A surface according to claim 6 wherein said different resin particles comprise polyethylene.
Claim 10
Dependent Claim
13 words
A surface according to claim 6 wherein said different resin particles comprise polytetrafluoroethylene.
Claim 11
Dependent Claim
15 words
A surface according to claim 6 wherein said different resin particles comprise polyethylene and polytetrafluoroethylene.
Claim 12
Dependent Claim
109 words
A metallic surface having thereon a resin coating comprising fused autodeposited resin particles and, fused and concentrated in the surface layer thereof, resin particles which are different than said autodeposited resin particles in having a coefficient of friction lower than that of the resin of said autodeposited resin particles, the amount of said different resin particles in the resin coating being such that said resin coating has a higher degree of surface slip than a resin coating formed from said autodeposited resin particles and has a higher degree of corrosion resistance than a coating comprising autodeposited resin particles of a resin having an inherently high degree of surface slip.
Claim 13
Dependent Claim
109 words
A metallic surface having thereon a resin coating comprising fused autodeposited resin particles and, fused and concentrated in the surface layer thereof, resin particles which are different than said autodeposited resin particles in having a coefficient of friction lower than that of the resin of said autodeposited resin particles, the amount of said different resin particles in the resin coating being such that said resin coating has a higher degree of surface slip than a resin coating formed from said autodeposited resin particles and has a higher degree of corrosion resistance than a coating comprising autodeposited resin particles of a resin having an inherently high degree of surface slip.
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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) | 1986-10-24 | 1987-04-25 | 1987-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-10-24 | 1991-04-25 | 1991-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-10-24 | 1995-04-25 | 1995-10-25 | $7700.00 | Window Closed / Lapsed |