Pressure sensitive releasable latex dipped felt underlay

A pressure sensitive, releasable carpet underlay comprising:

• a nonwoven substrate formed of fibers;
• a pressure sensitive non-aggressive adhesive comprising a mixture by weight of approximately 30% latex and 70% pressure sensitive non-aggressive adhesive, said pressure sensitive non-aggressive adhesive being disposed on at least one of two opposite surfaces of said substrate and filling interstices between said fibers substantially throughout said substrate, said pressure sensitive non-aggressive adhesive forming a coating on the surface and adapted to releasable adhere a carpet to an underlying coated surface of the underlay without leaving an adhesive residue on said surface when the carpet is removed from the underlay;
• a peelable protective liner releasably secured to said coating;
• and
• wherein said pressure sensitive non-aggressive adhesive is a composition including, by weight, 57.0-89.0% acrylate polymer dispersion, 10.0-42.0% calcium carbonate, and 0.25-1.0% ammonium polyacrylate.

A pressure sensitive, releasable carpet underlay comprising:

• a nonwoven substrate formed of fibers;
• a pressure sensitive non-aggressive adhesive comprising a mixture by weight of approximately 30% latex and 70% pressure sensitive non-aggressive adhesive, said pressure sensitive non-aggressive adhesive being disposed on at least one of two opposite surfaces of said substrate and filling interstices between said fibers substantially throughout said substrate, said pressure sensitive non-aggressive adhesive forming a coating on the surface and adapted to releasable adhere a carpet to an underlying coated surface of the underlay without leaving an adhesive residue on said surface when the carpet is removed from the underlay;
• a peelable protective liner releasably secured to said coating;
• and
• wherein the substrate is needle punched with a synthetic fiber.

A pressure sensitive, releasable carpet underlay comprising:

• a nonwoven substrate formed of fibers;
• a pressure sensitive non-aggressive adhesive comprising a mixture by weight of approximately 30% latex and 70% pressure sensitive non-aggressive adhesive, said pressure sensitive non-aggressive adhesive being disposed on at least one of two opposite surfaces of said substrate and filling interstices between said fibers substantially throughout said substrate, said pressure sensitive non-aggressive adhesive forming a coating on the surface and adapted to releasable adhere a carpet to an underlying coated surface of the underlay without leaving an adhesive residue on said surface when the carpet is removed from the underlay;
• a peelable protective liner releasably secured to said coating;
• and
• a pre-coat applied to said substrate, said pre-coat being a composition including, by weight, 55.0-88.0% styrene/butadiene polymer dispersion, 10.0-35.0% calcium carbonate, 2.0-10.0% starch, and 0.25-1.0% sodium polyacrylate.