Method for application of pressure sensitive adhesive to porous carpet pad
AssigneeAir Products and Chemicals, Inc.
InventorsE. Chris Hornaman, Thomas S. Jones
Life of this patent
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Abstract
A method for applying pressure sensitive adhesive (PSA) directly to one or both surfaces of carpet underlayment pads in which a liquid PSA polymer composition is first applied as a layer to a release substrate. The polymer layer is dried, forming a dried PSA film on the release substrate. The dried PSA film is then laminated to one or both surfaces of a carpet underlayment pad. Alternately, the film can be encased in a second substrate for storage and future application to a carpet underlayment pad.
Claims13
A method for applying a pressure sensitive adhesive to a porous carpet underlayment pad comprising the steps of:
- (a) applying a layer of a liquid pressure sensitive adhesive polymer composition to the release side of a release substrate;
- (b) drying the pressure sensitive adhesive polymer-containing layer to form a dried pressure sensitive adhesive film on the release substrate;
- and
- (c) contacting the dried pressure sensitive adhesive film to a surface of the carpet underlayment pad so that the release substrate forms an outer surface to the pressure sensitive adhesive film.
A method for applying a pressure sensitive adhesive to a porous carpet underlayment pad comprising:
- (a) applying a layer of a pressure sensitive adhesive polymer aqueous emulsion or a pressure sensitive adhesive polymer organic solution to the release side of a first release substrate;
- (b) drying the polymer-containing layer to form a dried pressure sensitive adhesive film on the first release substrate;
- (c) applying a second release substrate to the dried adhesive film, so that the release side of the second release substrate is in contact with the adhesive, to form an encased adhesive film;
- (d) removing one of the release substrates from the encased adhesive film to expose a surface of the pressure sensitive adhesive film;
- and
- (e) contacting the exposed pressure sensitive adhesive film to a surface of the carpet underlayment pad so that the other release substrate forms an outer surface to the pressure sensitive adhesive film.
Dependencies are inferred from the claim text.