Photocatalytic surfacing agents for inhibiting algae growth 机翻标题: 暂无翻译,请尝试点击翻译按钮。

公开号/公开日
US5518992 A 1996-05-21 [US5518992] / 1996-05-21
申请号/申请日
1994US-08286656 / 1994-08-05
发明人
LINKOUS CLOVIS A;
申请人
UNIVERSITY OF CENTRAL FLORIDA;
主分类号
IPC分类号
A01N-059/16C09D-005/16
摘要
(US5518992) 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% TiO2, WO3, PtWO3-Pt-WO3, or Pt-TiO2.  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 paint.
机翻摘要
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地址
代理人
代理机构
;
优先权号
1994US-08286656 1994-08-05
主权利要求
(US5518992) I claim: 1. A method of inhibiting the growth of algae on surfaces that are exposed to water comprising the steps of: applying a mixture of a coating combined with WO3 to a water exposed surface;  and applying light to the mixture which becomes photoactive to inhibit growth of algae. 2. The method of inhibiting the growth of algae of claim 1, wherein the coating includes: a polymer binder. 3. The method of inhibiting the growth of algae of claim 1, wherein the coating includes: a cement. 4. A method of inhibiting the growth of algae on surfaces that are exposed to water using a photoactive coating comprising the steps of: applying a coating combined with a photoactive agent that includes - Pt--TiO2, to a water exposed surface;  and applying light to the coating and the agent which inhibits the growth of algae on the surface. 5. The method of inhibiting the growth of algae of claim 4, wherein the coating includes: a polymer binder. 6. The method of inhibiting the growth of algae of claim 4, wherein the coating includes: a cement. 7. The method of inhibiting the growth of algae of claim 4, wherein the agent further includes: Pt--WO3. 8. The method of inhibiting the growth of algae of claim 4, wherein the agent includes: at least 5% by weight photoactive agent. 9. The method of inhibiting the growth of algae of claim 4, wherein the agent includes: at least 50% by weight photoactive agent. 10. The method of inhibiting the growth of algae of claim 4, wherein the surface includes: an inner wall within an aquarium. 11. The method of inhibiting the growth of algae of claim 4, wherein the surface includes: an inner wall of a swimming pool. 12. The method of inhibiting the growth of algae of claim 4, wherein the surface includes: an inner wall within a solar water heater. 13. A method of inhibiting the growth of algae on surfaces that are exposed to water using a photoactive coating comprising the steps of: applying a coating combined with a photoactive agent that includes - Pt--WO3, to a water exposed surface;  and applying light to the coating and the agent which inhibits the growth of algae on the surface. 14. The method of inhibiting the growth of algae of claim 13, wherein the coating includes: a polymer binder. 15. The method of inhibiting the growth of algae of claim 13, wherein the coating includes: a cement.
法律状态
(US5518992) LEGAL DETAILS FOR US5518992  Actual or expected expiration date=2014-08-05    Legal state=DEAD    Status=EXPIRED     Event publication date=1994-08-05  Event code=US/APP  Event indicator=Pos  Event type=Examination events  Application details  Application country=US US08286656  Application date=1994-08-05  Standardized application number=1994US-08286656     Event publication date=1994-08-05  Event code=US/EXMR  Event type=Administrative notifications  USPTO Examiner Name Primary Examiner: BEMBENICK, BRIAN    Event publication date=1994-08-05  Event code=US/ART  Event type=Administrative notifications  USPTO Art Group  ART=1209     Event publication date=1994-08-05  Event code=US/SMALL  Event type=Administrative notifications  Appl Has Filed a Verified Statement of Micro to Small Entity Status Business Entity Status: SMALL    Event publication date=1994-08-05  Event code=US/AIA  Event type=Administrative notifications  First Inventor File Indicated:  AIA=No     Event publication date=1994-08-05  Event code=US/DK  Event type=Examination events  Attorney Docket Number Docket Nbr: UCF116    Event publication date=1994-08-05  Event code=US/CUST  Event type=Examination events  Attorney/Agent Customer Number Customer Nbr: 76669    Event publication date=1994-08-05  Event code=US/AS  Event type=Change of name or address  Event type=Reassignment  Assignment  Effective date of the event=1994-08-04  ASSIGNMENT OF ASSIGNORS INTEREST ASSIGNOR:LINKOUS, CLOVIS A. REEL/FRAME:007104/0541     Event publication date=1994-08-05  Event code=US/IDS  Event type=Examination events  Event type=OAI  Information Disclosure Statement Filed    Event publication date=1994-09-15  Event code=US/DOCK  Event indicator=Pos  Event type=Examination events  Case Docketed to Examiner    Event publication date=1995-06-26  Event code=US/CTNF  Event type=Examination events  Event type=OA  Event type=OAO  Non-Final Rejection    Event publication date=1995-10-06  Event code=US/CTNFR  Event type=Examination events  Event type=OAI  Response after Non-Final Action    Event publication date=1995-11-28  Event code=US/NOAM  Event indicator=Pos  Event type=Examination events  Event type=OAO  Mail Notice of Allowance    Event publication date=1996-04-16  Event code=US/PAT  Event indicator=Pos  Event type=Event indicating In Force  Patented Case    Event publication date=1996-04-16  Event code=US/ISSM  Event indicator=Pos  Event type=Examination events  Event type=OAO  Event type=Restitution or restoration  Issue Notification Mailed    Event publication date=1996-05-21  Event code=US/A  Event indicator=Pos  Event type=Event indicating In Force  Patents Granted before 2001-04-15  Publication country=US  Publication number=US5518992  Publication stage Code=A  Publication date=1996-05-21  Standardized publication number=US5518992     Event publication date=1999-06-01  Event code=US/NMFP  Event type=Payment or non-payment notifications  Publication of First Notice of Maintenance Fees Payable. PAYMENT NOTICE YEAR:  Year of payment of annual fees=3     Event publication date=1999-08-13  Event code=US/FPAY  Event indicator=Pos  Event type=Event indicating In Force  Event type=Payment or non-payment notifications  Fee payment recorded   Annual fees payment date=1999-08-13     Year of payment of annual fees=4     Event publication date=2004-01-16  Event code=US/FPAY  Event indicator=Pos  Event type=Event indicating In Force  Event type=Payment or non-payment notifications  Fee payment recorded   Annual fees payment date=2004-01-16     Year of payment of annual fees=8     Event publication date=2004-01-16  Event code=US/SULP  Event indicator=Pos  Event type=Restitution or restoration  Event type=Event indicating In Force  Surcharge for late payment   Annual fees payment date=2004-01-16     Year of payment of annual fees=7     Event publication date=2007-06-05  Event code=US/NMFP  Event type=Payment or non-payment notifications  Publication of First Notice of Maintenance Fees Payable. PAYMENT NOTICE YEAR:  Year of payment of annual fees=11     Event publication date=2007-11-02  Event code=US/FPAY  Event indicator=Pos  Event type=Event indicating In Force  Event type=Payment or non-payment notifications  Fee payment recorded   Annual fees payment date=2007-11-02     Year of payment of annual fees=12     Event publication date=2014-08-05  Event code=US/EEDX  Event indicator=Neg  Event type=Event indicating Not In Force  Patent has expired
专利类型码
A
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