Polymeric film exhibiting improved anti-blocking characteristics and process of making

A method of forming a roll of thermoplastic elastomeric film resistant to blocking, said method comprising the steps of:

• a) providing a thermoplastic elastomeric film having a first surface and a second surface in a continuous manner by on-line formation by extrusion,
• b) substantially concurrent to said on-line formation, applying an anti-blocking agent in a fluid or molten state via a spray applicator directly to at least the first surface of the thermoplastic elastomeric film to form a discontinuous formation of said anti-blocking agent on said first surface comprising discrete droplets, and thereby form a treated surface, and
• c) gathering the film on a roll to form a bulk roll having rolled layers of the film with the treated surface in contact with the second surface;
• wherein the thermoplastic elastomeric film comprises an elastomeric polymer selected from the group consisting of a polyvinylarene, a styrenic block copolymer, a metallocene-catalyzed polyolefin, a polyurethane, a polyether amide and a polyester, and combinations thereof;
• and wherein the anti-blocking agent is substantially acrylic free.

A method of forming a roll of thermoplastic elastomeric film resistant to blocking, said method comprising the steps of:

• a) providing a thermoplastic elastomeric film having a first surface and a second surface in a continuous manner by on-line formation by extrusion,
• b) substantially concurrent to said on-line formation, applying an anti-blocking agent in a fluid or molten state to at least the first surface of the thermoplastic elastomeric film, to form a treated surface of the film, and
• c) gathering the film on a roll to form a bulk roll having rolled layers of the film with the treated surface in contact with the second surface;
• wherein the anti-blocking agent is substantially acrylic free.