Abstract

Mixtures that use photoactive agents that inhibit the growth of algae are disclosed. The agents include concentrations of approximately at least 5% to approximately 50% TiO.sub.2, WO.sub.3, PtWO.sub.3 --Pt--WO.sub.3, or Pt--TiO.sub.2. The agents can be combined together, and/or each agent can be combined with various coatings such as but not limited to a cement or a polymer binder. The coatings and agents can be applyed to surfaces that are exposed to water such as but not limited to an aquarium, liners on the inner walls of swimming pools, drinking water tanks and the like. Further, applications can include using the novel surfacing agent as part of a solar water heater for both a home and a pool, wherein in the latter application the heater is connected between pool pumps and the pool so that when light is absorbed inside the heater, the surfacing agent becomes active for inhibiting the growth of algae. The photoactive agent can also be applied as a non-toxic algae-retardant marine p

Document Type

Patent

Patent Number

US 5,518,992

Application Serial Number

08/286,656

Issue Date

5-21-1996

Current Assignee

UCFRF

Assignee at Issuance

UCFRF

College

Florida Solar Energy Center (FSEC)

Department

FSEC

Allowance Date

11-28-1995

Filing Date

8-5-1994

Assignee at Filing

UCFRF

Filing Type

Nonprovisional Application Record

Donated

no

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