Cleaning surface with reactivatable adhesive

Abstract

The disclosed cleaning surface includes a reactivatable adhesive to capture and hold dirt, dust, and debris and a spacing element to allow for the cleaning surface to glide over a surface to be cleaned. The reactivatable adhesive can be washed clean, but once dry, it regains the ability to capture and hold dirt, dust, and debris, so that the cleaning surface is reusable. The disclosed cleaning surface combines the ability of using adhesive to greatly enhance the capture of dirt, dust, and debris, while also being reusable. The reactivatable adhesive is a reactivatable pressure sensitive adhesive which is a polymerized precursor comprising a monomer component which contains one or more alkyl acrylates, the alkyl groups of which have an average of 4-14 C atoms, at least 2.0 phr of hydrophobic silica, one or more polymerization initiators, one or more crosslinker compounds, and which is essentially free from polar comonomers.

1 - 13 . (canceled) 
     
     
         14 . A cleaning surface comprising:
 raised portions comprising a spacer;   recessed portions comprising a reactivatable pressure sensitive adhesive;   wherein the reactivatable pressure sensitive adhesive is a polymerized precursor comprising a monomer component which contains one or more alkyl acrylates, the alkyl groups of which have an average of 4-14 C atoms, at least about 2.0 phr of hydrophobic silica, one or more polymerization initiators, one or more crosslinker compounds, and which is essentially free from polar comonomers.   
     
     
         15 . The cleaning surface of  claim 14 , wherein the spacer comprises an apertured cleaning sheet overlying the reactivatable pressure sensitive adhesive. 
     
     
         16 . The cleaning surface of  claim 14 , wherein the cleaning surface comprises a cleaning wipe comprising the raised portions and recessed portions comprising the reactivatable pressure sensitive adhesive. 
     
     
         17 . The cleaning surface of  claim 14 , wherein the cleaning surface is a portion of a cleaning tool comprising the raised portions and recessed portions comprising the reactivatable pressure sensitive adhesive. 
     
     
         18 . The cleaning surface of  claim 14 , wherein the spacer is removable from the reactivatable pressure sensitive adhesive. 
     
     
         19 . The cleaning surface of  claim 14 , wherein the reactivatable pressure sensitive adhesive can be washed clean, but once dry, regains the ability to capture and hold dirt, dust, and debris. 
     
     
         20 . The cleaning surface of  claim 14 , wherein the reactivatable pressure sensitive adhesive contains between 4 and 25 phr of hydrophobic silica. 
     
     
         21 . The cleaning surface of  claim 14 , wherein the concentration of the alkyl acrylates with respect to the mass of the precursor of the adhesive is 75% wt or more. 
     
     
         22 . The cleaning surface of  claim 14 , wherein the crosslinker compound is in a concentration resulting in a crosslink density obtainable by using tripropyleneglycoldiacrylate as a reference crosslinker compound in a concentration of 0.15 phr or more. 
     
     
         23 . The cleaning surface of  claim 14 , wherein the raised portion comprise at least 25% of the cleaning surface area. 
     
     
         24 . The cleaning surface of  claim 14 , wherein the raised portions extend at least 1 mm from the recessed portions. 
     
     
         25 . A cleaning sheet comprising:
 a back surface; and   a cleaning surface, opposite the back surface, the cleaning surface comprising raised portions comprising a spacing element and recessed portion comprising a reactivatable pressure sensitive adhesive;   wherein the reactivatable pressure sensitive adhesive comprises is a polymerized precursor comprising a monomer component which contains one or more alkyl acrylates, the alkyl groups of which have an average of 4-14 C atoms, at least about 2.0 phr of hydrophobic silica, one or more polymerization initiators, one or more crosslinker compounds, and which is essentially free from polar comonomers.