US2008095989A1PendingUtilityA1

Methods of blocking stains on a substrate to be painted, and composites suitable for use in such methods

44
Assignee: EASTMAN CHEM COPriority: Sep 26, 2003Filed: Dec 19, 2007Published: Apr 24, 2008
Est. expirySep 26, 2023(expired)· nominal 20-yr term from priority
Inventors:Eurell EubanksCharles G. RuffnerMark Dwight ClarkEdward E. Mcentire
Y10T428/2848Y10T428/31786Y10T428/31511Y10T428/264B44C 3/02B44C 1/105Y10T428/31938Y10T428/31812Y10T428/2839Y10T428/31663Y10T428/31935B44C 1/1733Y10T428/24777Y10T428/31855Y10T428/3154B44C 1/10Y10T428/31551
44
PatentIndex Score
0
Cited by
0
References
0
Claims

Abstract

Methods of blocking stains on a substrate to be painted are disclosed, as are stain-blocking composites that are useful according to the disclosed methods. In a broad aspect, the methods include the steps of contacting a stained portion of the substrate with a dry film layer; applying pressure to the dry film layer to cause the dry film layer to adhere to the stained portion of the substrate and to at least a portion of the substrate adjacent the stained portion of the substrate; and subsequently coating the dry film layer and the adjacent substrate with one or more additional liquid coating layers. Stain blocking composites useful according to the methods described include a release layer, to which the pressure is applied; a dry film layer, that can be clear or pigmented, that serves to block the stain; and an optional adhesive layer, intended to assist in adhering the dry film layer to the stained portion of the substrate and to at least that portion of the substrate adjacent the stained portion of the substrate.

Claims

exact text as granted — not AI-modified
1 - 21 . (canceled)  
   
   
       22 . A stain-blocking composition suitable for use in the method according to claim  1 , the composition comprising: 
 the dry film layer;    a release layer, on which the dry film layer is provided; and    optionally, an adhesive layer, on a side of the dry film layer opposite the release layer, that assists in adhering the dry film layer to the stain.    
   
   
       23 . The stain-blocking composition according to  claim 22 , wherein the dry film layer comprises one or more of: an acrylic polymer, a urethane polymer, an epoxy polymer, a hydrocarbon resin, a vinyl polymer, an ethylene copolymer, or a styrene copolymer.  
   
   
       24 . The stain-blocking composition according to  claim 22 , wherein the dry film layer is formed on the release layer by coating a liquid paint onto the release layer and drying the liquid paint.  
   
   
       25 . The stain-blocking composition according to  claim 22 , wherein the dry film layer comprises one or more of: a crosslinked polymer or an uncrosslinked polymer.  
   
   
       26 . The stain-blocking composition according to  claim 22 , wherein the dry film layer comprises one or more of: a cationic polymer, an anionic polymer, or a neutral polymer.  
   
   
       27 . The stain-blocking composition according to  claim 22 , wherein the dry film layer comprises one or more layers, each of which may comprise a cationic polymer, an anionic polymer, or a neutral polymer.  
   
   
       28 . The stain-blocking composition according to  claim 22 , wherein the dry film layer is dry to the touch and exudes no liquid substance.  
   
   
       29 . The stain-blocking composition according to  claim 22 , wherein the dry film layer comprises a polymer.  
   
   
       30 . The stain-blocking composition according to  claim 22 , wherein the dry film layer is formed from a liquid waterborne latex.  
   
   
       31 . The stain-blocking composition according to  claim 22 , wherein the dry film layer comprises a cured alkyd or polyester paint.  
   
   
       32 . The stain-blocking composition according to  claim 22 , wherein the dry film layer comprises a dried paint.  
   
   
       33 . The stain-blocking composition according to  claim 22 , wherein the dry film layer comprises a pressure-sensitive adhesive film.  
   
   
       34 . The stain-blocking composition according to  claim 22 , wherein the dry film layer is substantially solvent-free.  
   
   
       35 . The stain-blocking composition according to  claim 22 , wherein the dry film layer is substantially non-porous.  
   
   
       36 . The stain-blocking composition according to  claim 22 , wherein the dry film layer comprises a polymer having acid functionality.  
   
   
       37 . The stain-blocking composition according to  claim 22 , wherein the dry film layer comprises a polymer having one or more of: a cyclic urea functionality, an amine functionality, or a quaternary ammonium functionality.  
   
   
       38 . The stain-blocking composition according to  claim 22 , wherein the dry film layer is formed from a waterborne coating containing a thickener.  
   
   
       39 . The stain-blocking composition according to  claim 22 , wherein the dry film layer is a pressure-sensitive adhesive.  
   
   
       40 . The composition according to  claim 22 , wherein the dry film layer comprises at least one feathered edge.  
   
   
       41 . The composition according to  claim 22 , wherein the dry film layer is provided with at least two feathered edges.  
   
   
       42 . The composition according to  claim 22 , wherein the edges of the dry film layer are feathered.  
   
   
       43 . The composition according to  claim 22 , wherein the dry film layer has a width of at least 0.5 centimeters.  
   
   
       44 . The composition according to  claim 22 , wherein the dry film layer has a width of at least two centimeters.  
   
   
       45 . The composition according to  claim 22 , wherein the dry film layer has a width from about 0.5 centimeters to about one meter.  
   
   
       46 . The composition according to  claim 22 , wherein the dry film layer has a width from about 4 centimeters to about 70 centimeters.  
   
   
       47 - 50 . (canceled)  
   
   
       50 . The method according to claim  2 , wherein the pressure is applied uniformly across the surface of the dry film layer.  
   
   
       51 . The composition according to  claim 22 , wherein the adhesive layer comprises one or more of: an acrylic polymer; a hydrocarbon polymer; or a urethane polymer.  
   
   
       52 . The composition according to  claim 22 , wherein the adhesive layer comprises a polymer having a Tg of from about −60° C. to about 0° C.  
   
   
       53 . The composition according to  claim 22 , wherein the adhesive layer comprises a tackifier resin.  
   
   
       54 . The composition according to  claim 22 , wherein the adhesive layer comprises a styrene-isoprene polymer.  
   
   
       55 . The composition according to  claim 22 , wherein the adhesive layer comprises an acrylic latex polymer.  
   
   
       56 . The composition according to  claim 22 , wherein the adhesive layer has a thickness of from about 1 micrometer to about 50 micrometers.  
   
   
       57 . The composition according to  claim 22 , wherein the adhesive layer comprises one or more pigments.  
   
   
       58 . The composition according to  claim 22 , wherein the release layer comprises one or more of: a silicone polymer, a fluoropolymer, a hydrocarbon polymer, paper, glassine paper, polyethylene, polypropylene, polyethylene terephthalate, or nylon.  
   
   
       59 . The composition according to  claim 22 , wherein the dry film layer has a thickness from about 2.5 micrometers to about 500 micrometers.  
   
   
       60 . The composition according to  claim 22 , wherein the dry film layer has a thickness from about 10 micrometers to about 150 micrometers.  
   
   
       61 . The composition according to  claim 22 , wherein the dry film layer comprises a polymer having a Tg from about −50° C. to about +80° C.  
   
   
       62 . The composition according to  claim 22 , wherein the dry film layer comprises a polymer having a Tg from about −20° C. to about +40° C.  
   
   
       63 . The composition according to  claim 22 , wherein the dry film layer is prepared from a styrene-acrylic latex.  
   
   
       64 . The composition according to  claim 22 , wherein the adhesive layer is prepared from a waterborne latex.  
   
   
       65 . The composition according to  claim 22 , wherein the dry film layer is prepared from an acrylic latex.  
   
   
       66 . The composition according to  claim 22 , wherein the dry film layer is prepared from an acrylic latex and a thickener, and the adhesive layer is prepared from a waterborne latex.  
   
   
       67 . The composition according to  claim 22 , wherein the dry film layer is prepared from one or more of: an amine-cured epoxy resin; a waterborne urethane; a vinyl acetate-acrylic latex; a latex comprised of residues of 2-ethyl hexyl acrylate, acrylonitrile, methacrylic acid, and 2-phosphatoethyl methacrylate; an acrylic latex; or poly(vinylalcohol).  
   
   
       68 . The composition according to  claim 22 , wherein the dry film layer is prepared from an adhesive latex.  
   
   
       69 . (canceled)  
   
   
       70 . (canceled)  
   
   
       71 . The stain-blocking composition according to  claim 22 , wherein the optional adhesive layer comprises a polymer having one or more of: a cyclic urea functionality, an amine functionality, and a quaternary ammonium functionality.  
   
   
       72 . The composition according to  claim 22 , wherein the dry film layer has a width of at least one centimeter.

Join the waitlist — get patent alerts

Track US2008095989A1 — get alerts on status changes and closely related new filings.

We store only your email — no account needed. See our privacy policy.