Treatment for improving cellulose insulation

Details Treatment for improving cellulose insulation Treatment for improving cellulose insulation

F - Mech Eng,Light,Heat,Weapons

16

L

F16L 59/00 (2006.01) C09K 21/02 (2006.01)

Patent

CA 2399506

A method for manufacturing a fire retardant cellulose insulation with reduced density and reduced settling. The method consists of adding a material, the fibers of which have a positive electrostatic charge, onto a shredded newspaper base either before or after the addition of a pre- coat, consisting of a mixture of limestone and an antistat. A fire retardant agent is then added and the materials are ground in a finish mill. The newspaper fibers become positioned at an angle to the paper pieces, increasing the distance between the paper pieces, thereby lowering the density of the cellulose. Fibers such as ground cardboard, wood mulch, sawdust, fiberglass fibers and polyester fibers are examples of materials with electrostatically positively charged fibers.

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