US4428989A
Expired / Lapsed
US
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Anti-fouling and anti-sliming gel coat
Assignee: Standard Oil Co
•
Filing: 1982-06-21
•
Granted: 1984-01-31
•
Expires: 2002-06-21
Abstract
Abstract A polymeric composition containing copper flake in sufficient quantities to render the entire thickness of the polymeric composition electrically conductive. The copper flake is treated to remove oxides and reacted with conventional epoxy resins modified with an epoxidized polyol (polyglycol). The formulation not only exhibits outstanding anti-fouling properties but also exhibits anti-sliming properties. The composition is useful as a gel coat and when utilized on ships, boats, and other water craft, a vessel results which requires no additional anti-fouling or anti-sliming treatment for several years. The composition can also be used to great advantage as a liner for pipes and conduits used to transport salt or fresh water where fouling of the pipes is a problem. In one embodiment of the invention, a composition is disclosed which will cure under water. This particular formulation can be used to great advantage in patching holes in copper clad hulls and the like while the vessel is in water.
Inventors
- 👤 David W. Marshall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:10
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/16; C09D5/1656; C09D5/1662; C08; C08G; C08G59/00; C08G59/18; C08G59/20; C08G59/22; C08G59/226; C09D163/00; C09D5/1606; C09D5/1612; C09D5/1618; Y; Y02; Y02T; Y02T70/00; Y02T70/10; Y10; Y10S; Y10S428/00; Y10S428/907; Y10T; Y10T428/00; Y10T428/13; Y10T428/1352; Y10T428/1355; Y10T428/20; Y10T428/25; Y10T428/256; Y10T428/31504; Y10T428/31511; Y10T428/31525; Y10T428/31529; Y10T428/31678
Claims Analysis
Total Claims: 60
Claim 1
Independent Claim
69 words
A marine structure having an anti-sliming and anti-fouling surface thereon, said anti-sliming and anti-fouling surface comprising a cured resin formed from an epoxy resin coreacted with an epoxidized polyol and a curing agent, said cured resin containing copper flake, said copper flake being treated to remove impurities and oxides and being present in sufficient quantities so the copper flake comprises 50% or more of the weight of the surface.
Claim 2
Dependent Claim
69 words
A marine structure having an anti-sliming and anti-fouling surface thereon, said anti-sliming and anti-fouling surface comprising a cured resin formed from an epoxy resin coreacted with an epoxidized polyol and a curing agent, said cured resin containing copper flake, said copper flake being treated to remove impurities and oxides and being present in sufficient quantities so the copper flake comprises 50% or more of the weight of the surface.
Claim 3
Dependent Claim
17 words
The marine structure as set forth in claim 1 wherein said marine structure is a boat hull.
Claim 4
Dependent Claim
28 words
The boat hull as set forth in claim 2 wherein the cured epoxy resin is formed from an uncured epoxy resin having a viscosity less than 12,000 cps.
Claim 5
Dependent Claim
42 words
The boat hull as set forth in claim 3 wherein the epoxidized polyol which is coreacted with said epoxy resin has the following generalized formula: ##STR3## wherein n is 2-7 and R is hydrogen or an aliphatic hydrocarbon containing 1-6 carbon atoms.
Claim 6
Dependent Claim
28 words
The boat hull as set forth in claim 2 wherein the epoxidized polyol is present in sufficient quantities to comprise 5-30% of the total weight of the surface.
Claim 7
Dependent Claim
42 words
The boat hull as set forth in claim 5 wherein the epoxidized polyol which is coreacted with said epoxy resin has the following generalized formula: ##STR4## wherein n is 2-7 and R is hydrogen or an aliphatic hydrocarbon containing 1-6 carbon atoms.
Claim 8
Dependent Claim
23 words
The boat hull as set forth in claim 2 wherein the epoxidized polyol has an epoxy equivalent weight within the range of 100-500.
Claim 9
Dependent Claim
42 words
The boat hull as set forth in claim 7 wherein the epoxidized polyol which is coreacted with said epoxy resin has the following generalized formula: ##STR5## wherein n is 2-7 and R is hydrogen or an aliphatic hydrocarbon containing 1-6 carbon atoms.
Claim 10
Dependent Claim
20 words
The boat hull as set forth in claim 2 wherein said epoxy resin is a bisphenol A type epoxy resin.
Claim 11
Dependent Claim
42 words
The boat hull as set forth in claim 9 wherein the epoxidized polyol which is coreacted with said epoxy resin has the following generalized formula: ##STR6## wherein n is 2-7 and R is hydrogen or an aliphatic hydrocarbon containing 1-6 carbon atoms.
Claim 12
Dependent Claim
24 words
The boat hull as set forth in claim 2 wherein the particle size of said copper flake is between the range of 100-325 mesh.
Claim 13
Dependent Claim
42 words
The boat hull as set forth in claim 11 wherein the epoxidized polyol which is coreacted with said epoxy resin has the following generalized formula: ##STR7## wherein n is 2-7 and R is hydrogen or an aliphatic hydrocarbon containing 1-6 carbon atoms.
Claim 14
Dependent Claim
19 words
The boat hull as set forth in claim 2 wherein said epoxidized polyol is a polypropylene glycol glycidyl ether.
Claim 15
Dependent Claim
42 words
The boat hull as set forth in claim 13 wherein the epoxidized polyol which is coreacted with said epoxy resin has the following generalized formula: ##STR8## wherein n is 2-7 and R is hydrogen or an aliphatic hydrocarbon containing 1-6 carbon atoms.
Claim 16
Dependent Claim
42 words
The boat hull as set forth in claim 2 wherein the epoxidized polyol which is coreacted with said epoxy resin has the following generalized formula: ##STR9## wherein n is 2-7 and R is hydrogen or an aliphatic hydrocarbon containing 1-6 carbon atoms.
Claim 17
Dependent Claim
17 words
The marine structure as set forth in claim 1 wherein said marine structure is a navigational buoy.
Claim 18
Dependent Claim
28 words
The navigational bouy as set forth in claim 16 wherein the cured epoxy resin is formed from an uncured epoxy resin having a viscosity less than 12,000 cps.
Claim 19
Dependent Claim
42 words
The navigational bouy as set forth in claim 17 wherein the epoxidized polyol which is coreacted with said epoxy resin has the following generalized formula: ##STR10## wherein n is 2-7 and R is hydrogen or an aliphatic hydrocarbon containing 1-6 carbon atoms.
Claim 20
Dependent Claim
28 words
The navigational bouy as set forth in claim 16 wherein the epoxidized polyol is present in sufficient quantities to comprise 5-30% of the total weight of the surface.
Claim 21
Dependent Claim
42 words
The navigational bouy as set forth in claim 19 wherein the epoxidized polyol which is coreacted with said epoxy resin has the following generalized formula: ##STR11## wherein n is 2-7 and R is hydrogen or an aliphatic hydrocarbon containing 1-6 carbon atoms.
Claim 22
Dependent Claim
23 words
The navigational bouy as set forth in claim 16 wherein the epoxidized polyol has an epoxy equivalent weight within the range of 100-500.
Claim 23
Dependent Claim
42 words
The navigational bouy as set forth in claim 21 wherein the epoxidized polyol which is coreacted with said epoxy resin has the following generalized formula: ##STR12## wherein n is 2-7 and R is hydrogen or an aliphatic hydrocarbon containing 1-6 carbon atoms.
Claim 24
Dependent Claim
20 words
The navigational bouy as set forth in claim 16 wherein said epoxy resin is a bisphenol A type epoxy resin.
Claim 25
Dependent Claim
42 words
The navigational bouy as set forth in claim 23 wherein the epoxidized polyol which is coreacted with said epoxy resin has the following generalized formula: ##STR13## wherein n is 2-7 and R is hydrogen or an aliphatic hydrocarbon containing 1-6 carbon atoms.
Claim 26
Dependent Claim
24 words
The navigational bouy as set forth in claim 16 wherein the particle size of said copper flake is between the range of 100-325 mesh.
Claim 27
Dependent Claim
42 words
The navigational bouy as set forth in claim 25 wherein the epoxidized polyol which is coreacted with said epoxy resin has the following generalized formula: ##STR14## wherein n is 2-7 and R is hydrogen or an aliphatic hydrocarbon containing 1-6 carbon atoms.
Claim 28
Dependent Claim
19 words
The navigational bouy as set forth in claim 16 wherein said epoxidized polyol is a polypropylene glycol glycidyl ether.
Claim 29
Dependent Claim
42 words
The navigational bouy as set forth in claim 27 wherein the epoxidized polyol which is coreacted with said epoxy resin has the following generalized formula: ##STR15## wherein n is 2-7 and R is hydrogen or an aliphatic hydrocarbon containing 1-6 carbon atoms.
Claim 30
Dependent Claim
42 words
The navigational bouy as set forth in claim 16 wherein the epoxidized polyol which is coreacted with said epoxy resin has the following generalized formula: ##STR16## wherein n is 2-7 and R is hydrogen or an aliphatic hydrocarbon containing 1-6 carbon atoms.
Claim 31
Dependent Claim
16 words
The marine structure as set forth in claim 1 wherein said marine structure is a float.
Claim 32
Dependent Claim
27 words
The float as set forth in claim 30 wherein the cured epoxy resin is formed from an uncured epoxy resin having a viscosity less than 12,000 cps.
Claim 33
Dependent Claim
41 words
The float as set forth in claim 31 wherein the epoxidized polyol which is coreacted with said epoxy resin has the following generalized formula: ##STR17## wherein n is 2-7 and R is hydrogen or an aliphatic hydrocarbon containing 1-6 carbon atoms.
Claim 34
Dependent Claim
27 words
The float as set forth in claim 30 wherein the epoxidized polyol is present in sufficient quantities to comprise 5-30% of the total weight of the surface.
Claim 35
Dependent Claim
41 words
The float as set forth in claim 33 wherein the epoxidized polyol which is coreacted with said epoxy resin has the following generalized formula: ##STR18## wherein n is 2-7 and R is hydrogen or an aliphatic hydrocarbon containing 1-6 carbon atoms.
Claim 36
Dependent Claim
22 words
The float as set forth in claim 30 wherein the epoxidized polyol has an epoxy equivalent weight within the range of 100-500.
Claim 37
Dependent Claim
41 words
The float as set forth in claim 35 wherein the epoxidized polyol which is coreacted with said epoxy resin has the following generalized formula: ##STR19## wherein n is 2-7 and R is hydrogen or an aliphatic hydrocarbon containing 1-6 carbon atoms.
Claim 38
Dependent Claim
19 words
The float as set forth in claim 30 wherein said epoxy resin is a bisphenol A type epoxy resin.
Claim 39
Dependent Claim
41 words
The float as set forth in claim 37 wherein the epoxidized polyol which is coreacted with said epoxy resin has the following generalized formula: ##STR20## wherein n is 2-7 and R is hydrogen or an aliphatic hydrocarbon containing 1-6 carbon atoms.
Claim 40
Dependent Claim
23 words
The float as set forth in claim 30 wherein the particle size of said copper flake is between the range of 100-325 mesh.
Claim 41
Dependent Claim
41 words
The float as set forth in claim 39 wherein the epoxidized polyol which is coreacted with said epoxy resin has the following generalized formula: ##STR21## wherein n is 2-7 and R is hydrogen or an aliphatic hydrocarbon containing 1-6 carbon atoms.
Claim 42
Dependent Claim
18 words
The float as set forth in claim 30 wherein said epoxidized polyol is a polypropylene glycol glycidyl ether.
Claim 43
Dependent Claim
41 words
The float as set forth in claim 41 wherein the epoxidized polyol which is coreacted with said epoxy resin has the following generalized formula: ##STR22## wherein n is 2-7 and R is hydrogen or an aliphatic hydrocarbon containing 1-6 carbon atoms.
Claim 44
Dependent Claim
41 words
The float as set forth in claim 30 wherein the epoxidized polyol which is coreacted with said epoxy resin has the following generalized formula: ##STR23## wherein n is 2-7 and R is hydrogen or an aliphatic hydrocarbon containing 1-6 carbon atoms.
Claim 45
Dependent Claim
28 words
The marine structure as set forth in claim 1 wherein the cured epoxy resin is formed from an uncured epoxy resin having a viscosity less than 12,000 cps.
Claim 46
Dependent Claim
42 words
The marine structure as set forth in claim 44 wherein the epoxidized polyol which is coreacted with said epoxy resin has the following generalized formula: ##STR24## wherein n is 2-7 and R is hydrogen or an aliphatic hydrocarbon containing 1-6 carbon atoms.
Claim 47
Dependent Claim
28 words
The marine structure as set forth in claim 1 wherein the epoxidized polyol is present in sufficient quantities to comprise 5-30% of the total weight of the surface.
Claim 48
Dependent Claim
42 words
The marine structure as set forth in claim 46 wherein the epoxidized polyol which is coreacted with said epoxy resin has the following generalized formula: ##STR25## wherein n is 2-7 and R is hydrogen or an aliphatic hydrocarbon containing 1-6 carbon atoms.
Claim 49
Dependent Claim
23 words
The marine structure as set forth in claim 1 wherein the epoxidized polyol has an epoxy equivalent weight within the range of 100-500.
Claim 50
Dependent Claim
42 words
The marine structure as set forth in claim 48 wherein the epoxidized polyol which is coreacted with said epoxy resin has the following generalized formula: ##STR26## wherein n is 2-7 and R is hydrogen or an aliphatic hydrocarbon containing 1-6 carbon atoms.
Claim 51
Dependent Claim
20 words
The marine structure as set forth in claim 1 wherein said epoxy resin is a bisphenol A type epoxy resin.
Claim 52
Dependent Claim
42 words
The marine structure as set forth in claim 50 wherein the epoxidized polyol which is coreacted with said epoxy resin has the following generalized formula: ##STR27## wherein n is 2-7 and R is hydrogen or an aliphatic hydrocarbon containing 1-6 carbon atoms.
Claim 53
Dependent Claim
24 words
The marine structure as set forth in claim 1 wherein the article size of said copper flake is between the range of 100-325 mesh.
Claim 54
Dependent Claim
43 words
The marine structure as set forth in claim 52 wherein the epoxidized polyol which is coreacted with said epoxy resin has the following generalized formula: ##STR28## wherein n is 2-7 and R is hydrogen or an aliphatic hydrocarbon containing 1-6 carbon atoms. PG,79
Claim 55
Dependent Claim
19 words
The marine structure as set forth in claim 1 wherein said epoxidized polyol is a polypropylene glycol glycidyl ether.
Claim 56
Dependent Claim
42 words
The marine structure as set forth in claim 54 wherein the epoxidized polyol which is coreacted with said epoxy resin has the following generalized formula: ##STR29## wherein n is 2-7 and R is hydrogen or an aliphatic hydrocarbon containing 1-6 carbon atoms.
Claim 57
Dependent Claim
42 words
The marine structure as set forth in claim 1 wherein the epoxidized polyol which is coreacted with said epoxy resin has the following generalized formula: ##STR30## where n is 2-7 and R is hydrogen or an aliphatic hydrocarbon containing 1-6 carbon atoms.
Claim 58
Dependent Claim
68 words
A submersed or submersible marine structure having an antifouling surface thereon, said anti-fouling surface comprising a cured resin formed from an epoxy resin coreacted with an epoxidized polyol and a curing agent, said cured resin containing copper flake, said copper flake being treated to remove impurities and oxides and being present in sufficient quantities so the copper flake comprises 50% or more of the weight of the surface.
Claim 59
Dependent Claim
68 words
A submersed or submersible marine structure having an antifouling surface thereon, said anti-fouling surface comprising a cured resin formed from an epoxy resin coreacted with an epoxidized polyol and a curing agent, said cured resin containing copper flake, said copper flake being treated to remove impurities and oxides and being present in sufficient quantities so the copper flake comprises 50% or more of the weight of the surface.
Claim 60
Dependent Claim
26 words
The marine structure set forth in claim 57 wherein said marine structure is a structure selected from the group consisting of boat hulls, buoys and conduits.
References Cited (Backward Citations)
US3761334A
Cited
US4115130A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-01-30 | 1987-08-01 | 1988-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-01-30 | 1991-08-01 | 1992-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-01-30 | 1995-08-01 | 1996-01-31 | $7700.00 | Window Closed / Lapsed |