US4293339A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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 02:06
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.
References Cited (Backward Citations)
US2838419A
Cited
US3806352A
Cited
US3959530A
Cited
US4019922A
Cited
US4020200A
Cited
US4183757A
Cited
US4098925A
Cited
US4115130A
Cited
US4154818A
Cited
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 |