(WO200183878) A coated substrate comprises a strippable intermediate coating atop the substrate and a strip agent-permeable waterborne overcoat adhered to the intermediate coating, wherein the dried overcoat is less trippable and more wear-resistant than the dried intermediate coating. When the overcoat eventually becomes worn and must be renewed, a strip agent (e.g., chemical strip agent) can be applied to the overcoat. The strip agent penetrates the overcoat and attacks the intermediate coating, thereby enabling removal of the intermediate coating and overcoat without aggressive removal techniques such as sanding.
(WO200183878) We claim: 1. A coated substrate comprising a strippable intermediate coating atop the substrate and an overcoat atop the intermediate coating, characterized in that the overcoat was waterborne and when dried is strip agent-permeable, adhered to the intermediate coating, and less strippable and more wear-resistant than the dried intermediate coating. 2. A coated substrate according to claim 1, further characterized in that the substrate comprises a floor. 3. A coated substrate according to claim 2, further characterized in that the substrate comprises a resilient flooring material. 4. A coated substrate according to any preceding claim, further characterized in that the intermediate coating comprises an acrylic. 5. A coated substrate according to any preceding claim, further characterized in that the intermediate coating has a strippability rating of 6 or more on a 7 point scale, coπesponding to at least partial strip with softened coating in all areas, using a test strip agent made using a 25%> water solution of a concentrate that contained 59% softened water, 6% sodium xylene sulfonate, 4.5% potassium hydroxide, 10%> monoethanolamine, 0.2%> tetrasodium EDTA, 10% ethylene glycol phenyl ether and 0.05% fluorosurfactant, and a 30 minute standing time. 6. A coated substrate according to any preceding claim, further characterized in that the overcoat comprises an emulsion, suspension or dispersion. 7. A coated substrate according to any preceding claim, further characterized in that the overcoat is radiation curable. 8. A coated substrate accordmg to any preceding claim, further characterized in that the overcoat is UN-curable. 9. A coated substrate according to any preceding claim, further characterized in that the dried overcoat has a strippability rating of 4 or less on a 7 point scale, coπesponding to no more than severe chemical attack on the overcoat and the onset of stripping, using a test strip agent made using a 25%ι water solution of a concentrate that contained 59% softened water, 6% sodium xylene sulfonate, 4.5% potassium hydroxide, 10% monoethanolamine, 0.2%> tetrasodium EDTA, 10% ethylene glycol phenyl ether and 0.05%> fluorosurfactant, and a 30 minute standing time. 10. A strippable laminate finish kit comprising coatings in two or more containers, characterized in that one of the containers comprises a strippable intermediate coating and another of the containers comprises a waterborne overcoat, wherein the dried overcoat is strip agent-permeable, adheres to the intermediate coating, and is less strippable and more wear resistant than the dried intermediate coating. 11. A strippable laminate finish kit according to claim 10, further characterized in that the overcoat comprises a UN curable material. 12. A strippable laminate finish kit according to any of claims 10 to 11, further characterized in that the overcoat comprises an acrylate, urethane or acrylated urethane. 13. A strippable laminate finish kit according to any of claims 10 to 12, further characterized in that the overcoat comprises an aromatic urethane. 14. A method for applying a finish to a substrate to form a coated substrate according to claim 1, comprising: a) applying to the substrate a strippable intermediate coating; b) drying the inteπnediate coating; and c) applying an overcoat; characterized in that the overcoat is waterborne and when dried is strip agent-permeable, adheres to the intermediate coating, and is less strippable and more wear resistant than the dried intermediate coating. 15. A method according to claim 14, further characterized in that the overcoat comprises an emulsion, suspension or dispersion. 16. A method according to any of claims 14 to 15, further characterized in that the overcoat comprises an acrylate, urethane or acrylated urethane. 17. A method according to any of claims 14 to 16, further characterized in that the overcoat is UV curable. 18. A method for removing the coatings from a substrate according to claim 1, comprising: a) applying a strip agent to a dried radiation cured overcoat atop a dried intermediate layer atop the substrate; b) allowing the strip agent to permeate through the overcoat to attack the intermediate layer; and c) removing the intermediate layer and overcoat without removing substantial portions of the underlying substrate; characterized in that the overcoat was waterborne and adhered to the intermediate layer. 19. A method according to claim 18, further characterized in that permeation of the strip agent through the overcoat is enhanced by a mechanically roughening the overcoat prior to applying the strip agent. 20. A method according to any of claims 18 to 19, further characterized in that removal of the intermediate layer and overcoat occurs in less than 10 minutes after application of the strip agent.
(WO200183878) LEGAL DETAILS FOR WO200183878 Actual or expected expiration date=2003-10-28 Legal state=DEAD Status=LAPSED Event publication date=2001-04-24 Event code=WO/APP Event indicator=Pos Event type=Examination events Application details Application country=WO WOUS0113119 Application date=2001-04-24 Standardized application number=2001WO-US13119 Event publication date=2001-11-08 Event code=WO/A2 Event type=Examination events International application published without international search report Publication country=WO Publication number=WO200183878 Publication stage Code=A2 Publication date=2001-11-08 Standardized publication number=WO200183878 Event publication date=2001-11-08 Event code=WO/AL Event indicator=Pos Event type=Designated states Designated countries for regional patents Event publication date=2001-11-08 Event code=WO/AK Event indicator=Pos Event type=Designated states Designated states Event publication date=2002-01-24 Event code=WO/DFPE Event type=Examination events Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) Event publication date=2002-02-28 Event code=WO/A3 Event indicator=Pos Event type=Examination events Later publication of ISR with revised front page Publication country=WO Publication number=WO200183878 Publication stage Code=A3 Publication date=2002-02-28 Standardized publication number=WO200183878 Event publication date=2002-02-28 Event code=WO/AK Event indicator=Pos Event type=Designated states Designated states Event publication date=2002-02-28 Event code=WO/AL Event indicator=Pos Event type=Designated states Designated countries for regional patents Event publication date=2003-10-28 Event code=WO/EETL Event type=Event indicating Not In Force PCT Application validity period expired. LEGAL DETAILS FOR DESIGNATED STATE AU2001253778 Actual or expected expiration date=2021-04-24 Legal state=ALIVE Status=GRANTED Corresponding cc: Designated or member state=AU Corresponding appl: AU2001253778 Application date in the designated or member state=2001-04-24 Application number in the designated or member state=2001AU-0253778 Corresponding cc: Designated or member state=AU Corresponding pat: AU2001253778 Publication stage code in the designated or member state=B2 Publication date in the designated or member state=2005-07-21 Publication number in the designated or member state=AU2001253778 Event publication date=2002-10-11 Event code=WO/WWE Event indicator=Pos Event type=Entry into national phase Wipo information: entry into national phase Corresponding cc: Designated or member state=AU Event publication date=2005-11-04 Event code=WO/WWG Event indicator=Pos Event type=Event indicating In Force Wipo information: grant in national office Corresponding cc: Designated or member state=AU LEGAL DETAILS FOR DESIGNATED STATE BR0110237 Actual or expected expiration date=2010-03-30 Legal state=DEAD Status=LAPSED Corresponding cc: Designated or member state=BR Corresponding appl: BR0110237 Application date in the designated or member state=2001-04-24 Application number in the designated or member state=2001BR-0010237 Corresponding cc: Designated or member state=BR Corresponding pat: BR0110237 Publication stage code in the designated or member state=A Publication date in the designated or member state=2003-03-05 Publication number in the designated or member state=BR200110237 Event publication date=2011-05-10 Event code=BR/STCHG Patent Status changed by the national office Corresponding cc: Designated or member state=BR LEGAL DETAILS FOR DESIGNATED STATE CA2407676 Actual or expected expiration date=2008-04-24 Legal state=DEAD Status=LAPSED Corresponding cc: Designated or member state=CA Corresponding appl: CA2407676 Application date in the designated or member state=2001-04-24 Application number in the designated or member state=2001CA-2407676 Corresponding cc: Designated or member state=CA Corresponding pat: CA2407676 Publication stage code in the designated or member state=A1 Publication date in the designated or member state=2001-11-08 Publication number in the designated or member state=CA2407676 Event publication date=2002-10-28 Event code=WO/WWE Event indicator=Pos Event type=Entry into national phase Wipo information: entry into national phase Corresponding cc: Designated or member state=CA Event publication date=2008-04-24 Event code=CA/STCHG Patent Status changed by the national office Corresponding cc: Designated or member state=CA LEGAL DETAILS FOR DESIGNATED STATE EP1276821 Actual or expected expiration date=2007-04-17 Legal state=DEAD Status=LAPSED Corresponding cc: Designated or member state=EP Corresponding appl: EP01927311 Application date in the designated or member state=2001-04-24 Application number in the designated or member state=2001EP-0927311 Corresponding cc: Designated or member state=EP Corresponding pat: EP1276821 Publication stage code in the designated or member state=A2 Publication date in the designated or member state=2003-01-22 Publication number in the designated or member state=EP1276821 Event publication date=2002-01-02 Event code=WO/121 Event type=Designated states EP: The EPO has been informed by wipo that ep was designated in this application Corresponding cc: Designated or member state=EP Event publication date=2002-09-28 Event code=WO/WWE Event indicator=Pos Event type=Entry into national phase Wipo information: entry into national phase Corresponding cc: Designated or member state=EP Event publication date=2003-01-22 Event code=WO/WWP Event indicator=Pos Event type=Examination events Wipo information: published in national office Corresponding cc: Designated or member state=EP Event publication date=2007-04-17 Event code=WO/WWW Event indicator=Neg Event type=Event indicating Not In Force Wipo information: withdrawn in national office Corresponding cc: Designated or member state=EP LEGAL DETAILS FOR DESIGNATED STATE JP Actual or expected expiration date=2021-04-24 Legal state=ALIVE Status=PENDING Corresponding cc: Designated or member state=JP Corresponding appl: JP2001 580481 Event publication date=2002-10-17 Event code=WO/ENP Event type=Entry into national phase Entry into the national phase in: Corresponding cc: Designated or member state=JP LEGAL DETAILS FOR DESIGNATED STATE MXPA02010639 Actual or expected expiration date=2013-12-19 Legal state=DEAD Status=LAPSED Corresponding cc: Designated or member state=MX Corresponding appl: MXPA02010639 Application date in the designated or member state=2001-04-24 Application number in the designated or member state=2002MX-PA10639 Corresponding cc: Designated or member state=MX Corresponding pat: MXPA02010639 Publication stage code in the designated or member state=A Publication date in the designated or member 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