C - Chemistry – Metallurgy – 08 – J
Patent
C - Chemistry, Metallurgy
08
J
C08J 5/18 (2006.01) E04B 1/80 (2006.01)
Patent
CA 2244523
A fibrous insulation blanket is encapsulated within a polymeric film having an increased coefficient of friction. The polymeric film includes, by weight, between about 7% and about 25% of a particulate material for increasing the coefficient of friction of the polymeric film. Preferably, the particulate material is selected from a group of particulate materials that includes calcium carbonate, alumina trihydrate, diatomite and dolomite and has an average particle size ranging from about 1 micron to about 5 microns. The polymeric film has a thickness between about 0.35 and about 3.0 mils and a density of at least 0.910 grams per cubic centimeter. The particulate material is mixed with the polymeric resin to form an extrudable polymeric resin mixture that is then extruded to form the polymeric film with the increased coefficient of friction.
Un matelas isolant fibreux est encapsulé dans un film polymère ayant un coefficient de friction accru. Le film polymère comprend, en poids, d'environ 7 à environ 25 % d'une matière particulaire destinée à augmenter le coefficient de friction de ce film. De préférence, la matière particulaire est choisie parmi un groupe de matières particulaires comprenant le carbonate de calcium, le trihydrate d'alumine, la diatomite et la dolomite, et ayant une taille moyenne de particule allant d'environ 1 micron à environ 5 microns. Le film polymère a une épaisseur allant d'environ 0,35 à environ 3,0 mil et une masse volumique d'au moins 0,910 gramme par centimètre cube. La matière particulaire est mélangée avec la résine polymère afin de former un mélange de résine polymère extrudable, qui est ensuite extrudé afin de former le film polymère possédant un coefficient de friction accru.
Allwein Robert John
Ray Richard J. Jr.
Seibold Craig Donald
Teague Jo Morgan
Johns Manville International Inc.
Macrae & Co.
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