Patent US4293339A successfully refreshed from Google Patents.
US4293339A
Expired / Lapsed
US
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Underwater wax formulation and method
Assignee: United States Department of the Navy
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Filing: 1980-02-28
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Granted: 1981-10-06
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Expires: 2000-02-28
Abstract
Abstract A wax coating composition capable of underwater application to submerged surfaces comprises a mixture of from about 2% to about 18% of a polymer having the recurring unit-C2F3Cl -; from about 20% to about 40% of a microcrystalline wax; from about 40% to about 70% of a chlorinated paraffinic hydrocarbon and up to about 5% of a surfactant. An appropriate biocide may be interspersed into the wax to prevent marine growth. Another wax coating composition comprises a mixture of from about 16% to about 27% of a paraffin wax; from about 22% to about 33% of a microcrystalline wax; and from about 36% to about 58% of a chlorinated paraffinic hydrocarbon. A biocide such as the organotins or cuprous oxide antifoulants may comprise from about 2% to about 10% of the wax mixture.
Inventors
- 👤 Robert F. Supcoe
- 👤 Thomas Radakovich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:04
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/16; C09D5/1656; C09D191/00; C09D191/06; C09D191/08
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
106 words
A wax coating material for application to submerged surfaces consisting essentially of a mixture, by weight percent, of from about 2% to about 18% of a fluorinatedchlorinated aliphatic polymer having a recurring unit of --C 2 F 3 Cl-- and an average molecular weight range of between about 500 to about 1200; from about 20% to about 40% of a microcrystalline wax; from about 40% to about 70% of a chlorinated paraffinic hydrocarbon having a chlorine content, by weight percent, of from about 40% to about 70% and up to about 5% of a surfactant for improving the displacement of the water molecules from the surface.
Claim 2
Dependent Claim
106 words
A wax coating material for application to submerged surfaces consisting essentially of a mixture, by weight percent, of from about 2% to about 18% of a fluorinatedchlorinated aliphatic polymer having a recurring unit of --C 2 F 3 Cl-- and an average molecular weight range of between about 500 to about 1200; from about 20% to about 40% of a microcrystalline wax; from about 40% to about 70% of a chlorinated paraffinic hydrocarbon having a chlorine content, by weight percent, of from about 40% to about 70% and up to about 5% of a surfactant for improving the displacement of the water molecules from the surface.
Claim 3
Dependent Claim
29 words
The wax material according to claim 1, further comprising a biocide for preventing marine growth comprising, by weight percent, from about 1% to about 10% of the wax mixture.
Claim 4
Dependent Claim
45 words
The wax material of claim 1, wherein said mixture has a viscosity of 100° C. of 6.7 to 7.4 cps; a melting point of about 41° C. to about 52° C. and a density of about 0.734 g/cm 3 to about 0.885 g/cm 3 .
Claim 5
Independent Claim
116 words
A method of coating submerged surfaces for preventing marine growth comprises applying a wax mixture directly to the submerged surfaces, said wax mixture having a formulation substantially as follows: from about 2% to about 18% of a fluorinated-chlorinated aliphatic polymer having a recurring structural unit --C 2 F 3 Cl-- and an average molecular weight range of between about 500 to about 1200; from about 20% to about 40% of a microcrystalline wax; from about 40% to about 70% of a chlorinated paraffinic hydrocarbon having a chlorine content, by weight percent, of from about 40% to about 70%; and up to about 5% of a surfactant for improving the displacement of the molecules from the surface.
Claim 6
Independent Claim
116 words
A method of coating submerged surfaces for preventing marine growth comprises applying a wax mixture directly to the submerged surfaces, said wax mixture having a formulation substantially as follows: from about 2% to about 18% of a fluorinated-chlorinated aliphatic polymer having a recurring structural unit --C 2 F 3 Cl-- and an average molecular weight range of between about 500 to about 1200; from about 20% to about 40% of a microcrystalline wax; from about 40% to about 70% of a chlorinated paraffinic hydrocarbon having a chlorine content, by weight percent, of from about 40% to about 70%; and up to about 5% of a surfactant for improving the displacement of the molecules from the surface.
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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) | 1984-10-05 | 1985-04-06 | 1985-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-10-05 | 1989-04-06 | 1989-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-10-05 | 1993-04-06 | 1993-10-06 | $7700.00 | Window Closed / Lapsed |