C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 83/04 (2006.01) D01F 6/76 (2006.01) D01F 9/00 (2006.01) D04H 1/42 (2006.01)
Patent
CA 2705963
An article is provided that comprises fibers, as is a method of forming the article. The fibers comprise an organopolysiloxane component selected from (i) an organopolysiloxane having the formula (R3SiOi/2)w(R2Si.theta.2/2).chi.(RSi.theta.3/2)y(Si.theta.4/2)z (I), wherein each R is selected from the group of an inorganic group, an organic group, and combinations thereof, w is from 0 to 0.95, x is from 0 to 0.95, y is from 0 to 1, z is from 0 to 0.9, and w+x+y+z=1, and (ii) a cured product of said organopolysiloxane having the formula (I), and combinations of (i) and (ii), provided that the fibers are free from organic polymers, organic copolymers, and organosiloxane-organic copolymers. The method of forming the article includes the step of forming fibers from a composition. The composition used to form the fibers comprises the organopolysiloxane having the formula (I), provided that the composition is free from organic polymers, all-organic copolymers, and organosiloxane-organic copolymers. The article exhibits excellent hydrophobicity and maximized fire resistance.
L'invention concerne un article qui comprend des fibres, ainsi qu'un procédé de formation de l'article. Les fibres comprennent un composant organopolysiloxane choisi parmi (i) un organopolysiloxane ayant la formule (R3SiOi/2)w(R2Si?2/2)?(RSi?3/2)y(Si?4/2)z (I), dans laquelle chaque groupe R est choisi dans l'ensemble formé d'un groupe inorganique, d'un groupe organique, et de leurs combinaisons, w vaut de 0 à 0,95, x vaut de 0 à 0,95, y vaut de 0 à 1, z vaut de 0 à 0,9, et w+x+y+z=l, et (ii) un produit durci dudit organopolysiloxane ayant la formule (I), et des combinaisons de (i) et (ii), sous réserve que les fibres soient dépourvues de polymères organiques, de copolymères organiques et de copolymères organosiloxane-organiques. Le procédé de formation de l'article comprend l'étape de formation de fibres à partir d'une composition. La composition utilisée pour former les fibres comprend l'organopolysiloxane ayant la formule (I), sous réserve que la composition soit dépourvue de polymères organiques, de copolymères intégralement organiques et de copolymères organosiloxane-organiques. L'article présente une excellente hydrophobicité et une résistance maximale au feu.
Clark Aneta
Hill Randal
Schmidt Randall
Snow Steven
Dow Corning Corporation
Gowling Lafleur Henderson Llp
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