Patent Number: 6,251,476

Title: Methods for spray-on insulation for walls and floor

Abstract: A method for applying fibrous cellulose insulation to a wall, ceiling, or floor which includes in at least certain embodiments mixing cellulose fibers with an adhesive without water producing a mixture, and applying (e.g. by blowing or spraying) the mixture to a surface. The method further includes spraying the mixture with a spray nozzle onto the wall by introducing cellulose fibers under pressure through a first hose into the spray nozzle, introducing the adhesive in aqueous solution under pressure through a second hose into the spray nozzle, and spraying from the spray nozzle the mixture onto the wall. In one aspect acid-containing fibers are sprayed with a PVOH adhesive (cooked with or without an acidic medium) to create the mixture.

Inventors: Boyer; Harold F. (Stafford, TX), Kempe; Steven A. (Richmond, TX)

Assignee: International Cellulose Corp.

International Classification: E04F 21/12 (20060101); E04B 1/76 (20060101); E04F 21/02 (20060101); B05D 001/02 (); B05D 007/22 ()

Expiration Date: 06/26/2018