Composition for coating an overhead conductor comprising a reflective agent and a photocatalytic agent
AssigneeCable Coatings Limited
InventorsNiall Coogan, Barry Johnston
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Abstract
A composition for coating an overhead conductor is disclosed comprising: (i) a reflective agent; (ii) a photocatalytic agent comprising ≥70 wt % anatase titanium dioxide (TiO2) having an average particle size (“aps”) ≤100 nm; (iii) a non-aqueous solvent; and (iv) one or more alkyl silicate binders.
Claims24
A composition for coating an overhead conductor comprising:
- a reflective agent comprising rutile titanium dioxide having an average particle size of ≤100 nm, sodium aluminosilicate (AlNa12SiO5), or copper oxide (CuO);
- a photocatalytic agent comprising ≥70 wt % anatase titanium dioxide (TiO2) having an average particle size (“aps”)≤100 nm;
- a non-aqueous solvent;
- and
- one or more alkyl silicate binders.
A kit for forming a composition for coating an overhead conductor comprising:
- a first part comprising:
- (i) a reflective agent comprising rutile titanium dioxide having an average particle size of ≥100 nm, sodium aluminosilicate (AlNa12SiO5), or copper oxide (CuO);
- (ii) a photocatalytic agent comprising ≥70 wt % anatase titanium dioxide (TiO2) having an average particle size (“aps”)≤100 nm;
- and (iii) one or more alkyl silicate binders;
- and
- a second part comprising:
- (i) a non-aqueous solvent;
- wherein, in use, the first and second parts are mixed together to form a composition which is applied to at least a portion of an overhead conductor in order to form a coating or film on at least a portion of the overhead conductor.
A method of retro-fitting an overhead power transmission or distribution line comprising one or more overhead conductors, the method comprising:
- spraying, painting, coating or applying a composition on to at least a portion of an overhead conductor, wherein the composition comprises:
- (i) a reflective agent comprising rutile titanium dioxide having an average particle size of ≥100 nm, sodium aluminosilicate (AlNa12SiO5), or copper oxide (CuO);
- (ii) a photocatalytic agent comprising ≥70 wt % anatase titanium dioxide (TiO2) having an average particle size (“aps”)≤100 nm;
- (iii) a non-aqueous solvent;
- and (iv) one or more alkyl silicate binders;
- and then
- allowing the composition to cure solely by moisture curing so as to form a coating or film on at least a portion of the overhead conductor.
A composition for coating an overhead conductor comprising:
- a reflective agent comprising rutile titanium dioxide having an average particle size of ≥100 nm, sodium aluminosilicate (AlNa12SiO5), zinc oxide (ZnO) or copper oxide (CuO);
- a photocatalytic agent comprising ≥70 wt % anatase titanium dioxide (TiO2) having an average particle size (“aps”) ≤100 nm;
- a non-aqueous solvent;
- and
- one or more alkyl silicate binders;
- wherein the composition comprises 10 to about 25 wt. % reflective agent and from 1 to about 5 wt. % photocatalytic agent.
An overhead conductor at least partially coated with a composition comprising:
- a reflective agent;
- a photocatalytic agent comprising ≥70 wt % anatase titanium dioxide (TiO2) having an average particle size (“aps”) ≤100 nm;
- a non-aqueous solvent;
- and
- one or more alkyl silicate binders, wherein, in use, the composition is cured so as to form a coating or film on at least a portion of the overhead conductor;
- wherein the coating or film has an average thermal emissivity coefficient E≥0.90 across the infrared spectrum 2.5-30.0 μm;
- and/or
- wherein the coating or film has an average solar reflectivity coefficient R≥0.80, across the solar spectrum 0.3-2.5 μm;
- and/or
- wherein the coating or film is substantially white in colour and has a L*≥80, L*≥85, L*≥90 or a L*≥95.
Dependencies are inferred from the claim text.