E - Fixed Constructions – 04 – B
Patent
E - Fixed Constructions
04
B
31/67, 137/75
E04B 1/74 (2006.01) D21H 11/02 (2006.01) E04B 1/76 (2006.01) E04F 21/08 (2006.01)
Patent
CA 2039303
FLUFF-TYPE ORGANIC INSULATING PULP AND METHOD OF FABRICATION AND APPLICATION Abstract of the Disclosure An insulating pulp for insulating buildings and other type structures and wherein the pulp is formed of organic fibers having a fiber length of from about 1.0 mm to 3 mm. Such pulp is obtained by a chemi- thermomechanical pulping process and the pulp may be supplied in fluff form or compressed sheet form which is later defibrillized. A fire retardant additive and a corrosive buffing agent is added to the pulp. A major characteristic of such insulating pulp is that it has a density in the range of from about 0.7 to 2.0 lbs/ft3 and has an excellent thermal insulation value of about R3 to R4 per inch. The chemi-thermomechanical wood pulp is produced from debarked trees which are primarily black spruce which have these long and strong fibers. The pulp is applied by injecting it through a compressed air conduit and at the same time an adhesive is injected in the pulp to form a binding agent. Because of the property of the fibers and the fiber distribution in the fluff, the pulp is also an excellent acoustical insulator.
Boisvert Andre
Fortin Michel E.
Lemaire Bernard
Cascades Inc.
Swabey Ogilvy Renault
LandOfFree
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