Article having slippable adhesive

A slippable adhesive sheet comprising:

• (a) a substrate having an adhering surface and a non-adhering surface;
• (b) a base adhesive layer covering at least a portion of said adhering surface;
• said base adhesive layer comprising a hot melt pressure sensitive adhesive, said base adhesive layer exhibiting a peel adhesion of more than 0.5 pounds per lineal inch;
• and
• (c) a low tack adhesive layer covering at least a portion of said base adhesive layer, said low tack adhesive layer comprising a pressure sensitive adhesive and displaceable or fracturable hollow glass microparticles dispersed therein, said microparticles causing said low tack adhesive layer to have a surface for adhering that is not flat, said low tack adhesive layer exhibiting a peel adhesion of less than about 0.75 pounds per lineal inch, wherein said peel adhesion exhibited by said low tack adhesive layer is less than said peel adhesion exhibited by said base adhesive layer;
• wherein said low tack adhesive layer is fracturable or displaceable to create pathways for said first adhesive to pass through said low tack adhesive layer;
• and
• wherein said base adhesive layer is capable of diffusing less than about 20% into said low tack adhesive layer at room temperature over a period of two years.

A slippable adhesive sheet comprising:

• (a) a substrate having an adhering surface and a non-adhering surface;
• (b) a base adhesive layer covering at least a portion of said adhering surface;
• said base adhesive layer comprising a hot melt pressure sensitive adhesive, said base adhesive layer being less than about 0.005 inch in thickness;
• said base adhesive layer exhibiting a peel adhesion of more than about 2.0 pounds per lineal inch, and a tack of between about 100 g/cm.sup.2 and 300 g/cm.sup.2 ;
• and
• (c) a low tack adhesive layer covering at least a portion of said base adhesive layer, said low tack adhesive layer comprising a pressure sensitive adhesive and displaceable or fracturable hollow glass microparticles having diameters less than about 125 microns dispersed therein, said microparticles causing said low tack adhesive layer to have a surface for adhering that is not flat, said low tack adhesive layer being less than about 0.005 inch in thickness, said low tack adhesive layer exhibiting a peel adhesion of less than about 0.2 pounds per lineal inch;
• wherein said low tack adhesive layer is fracturable or displaceable to create pathways for said first adhesive to pass through said low tack adhesive layer;
• and
• said base adhesive layer being capable of diffusing less than about 15% into said low tack adhesive layer at room temperature over a period of two years, said sheet exhibiting a tack of less than about 5 g/cm.sup.2.

An article having a surface, said surface having adhered thereto an adhering surface of a covering, said covering having:

• (a) an adhering surface and a non-adhering surface;
• (b) a base adhesive layer comprising a first adhesive and covering at least a portion of said adhering surface;
• and
• (c) a low tack adhesive layer covering at least a portion of said base adhesive layer, said low tack adhesive layer comprising a second adhesive and microparticles;
• wherein at least a portion of said microparticle of said low tack adhesive layer are fractured or displaced into said base adhesive layer thereby creating voids in said low tack adhesive layer and wherein at least a portion of said first adhesive has passed through said voids to contact said surface of said article.