US2008167182A1PendingUtilityA1

Moisture-sink layer for decorative surface coverings

48
Individually held — no corporate assignee on recordPriority: Apr 17, 2003Filed: Mar 14, 2008Published: Jul 10, 2008
Est. expiryApr 17, 2023(expired)· nominal 20-yr term from priority
Inventors:Kean M. AnspachWilliam J. Kauffman
Y10T428/31909C08L 101/14Y10T428/254Y10T428/31928Y10T428/31931Y10T428/31504Y10T428/24364Y10T428/31935Y10T428/31855
48
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Claims

Abstract

Disclosed is decorative surface covering that has a substantially non-aqueous absorptive layer and a water retentive layer. The decorative surface covering may be a vinyl-backed floor covering that can be adhered to a substantially non-aqueous absorptive subfloor with a water-based adhesive. The water retentive layer is formed from a polymer matrix and super absorbent water retentive particles. The water retentive layer may also include a hydrophilic additive to facilitate movement of water from the adhesive to the super absorbent water retentive particles. The water retentive layer may also be applied to the substantially non-aqueous absorptive subfloor.

Claims

exact text as granted — not AI-modified
1 - 14 . (canceled) 
     
     
         15 . A water retentive composition comprising a polymer binder, super absorbent water retentive particles and a hydrophilic additive. 
     
     
         16 - 41 . (canceled) 
     
     
         42 . The water retentive composition of  claim 15 , wherein the hydrophilic additive is a polyether glycol. 
     
     
         43 . The water retentive composition of  claim 15 , wherein the super absorbent water retentive particles comprise polyacrylic acid or a salt thereof. 
     
     
         44 . The water retentive composition of  claim 43 , wherein the polyacrylic acid salt is sodium polyacrylate. 
     
     
         45 . The water retentive composition of  claim 15 , wherein the polymer binder is water permeable. 
     
     
         46 . The water retentive composition of  claim 15 , wherein the polymer binder is hydrophobic. 
     
     
         47 . The water retentive composition of  claim 46 , wherein the polymer binder comprises a polyolefin. 
     
     
         48 . The water retentive composition of  claim 46 , wherein the hydrophobic polymer binder comprises a polyvinyl chloride polymer or copolymer. 
     
     
         49 . A water retentive layer comprising a polymer binder, super absorbent water retentive particles and a hydrophilic additive. 
     
     
         50 . The water retentive layer of  claim 49 , wherein the hydrophilic additive is a polyether glycol. 
     
     
         51 . The water retentive layer of  claim 49 , wherein the super absorbent water retentive particles comprise polyacrylic acid or a salt thereof. 
     
     
         52 . The water retentive layer of  claim 51 , wherein the polyacrylic acid salt is sodium polyacrylate. 
     
     
         53 . The water retentive layer of  claim 49 , wherein the super absorbent water retentive particles are dispersed within the polymer binder. 
     
     
         54 . The water retentive layer of  claim 49 , wherein the water retentive layer is non-porous. 
     
     
         55 . The water retentive layer of  claim 49 , wherein the polymer binder is water permeable. 
     
     
         56 . The multi-layered article of  claim 49 , wherein the polymer binder is hydrophobic. 
     
     
         57 . The multi-layered article of  claim 56 , wherein the polymer binder comprises a polyolefin. 
     
     
         58 . The water retentive layer of  claim 56 , wherein the hydrophobic polymer binder comprises a polyvinyl chloride polymer or copolymer.

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