Microporous membrane with adsorbent multi-functional filler

C - Chemistry – Metallurgy – 08 – J

Patent

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Details

C08J 5/18 (2006.01) A41D 31/00 (2006.01) B32B 5/18 (2006.01) B32B 5/26 (2006.01) B32B 5/30 (2006.01) B32B 5/32 (2006.01) C08J 5/22 (2006.01)

Patent

CA 2489362

The invention relates to a microporous membrane that incorporates a polymeric- based resin and a multi-functional filler. The predominately activated carbon based filler serves a multi-functional purpose including acting as a mechanical pore forming agent, as well as providing a defined degree of chemical resistance by nature of its inherent adsorptive characteristics. The multi-functional microporous membrane exhibits breathability via moisture vapor transmission, resistance to particulate penetration, and resistance to chemical penetration and permeation. The unique membrane also exhibits characteristics of odor control.

L'invention se rapporte à une membrane microporeuse comportant une résine polymère et une matière de remplissage multifonctionnelle. La matière de remplissage, de préférence de carbone activé, a de multiples utilisations, notamment comme agent de formation de pores mécanique, ainsi que comme agent assurant un degré défini de résistance chimique de par ses caractéristiques adsorbantes inhérentes. La membrane microporeuse multifonctionnelle fait preuve de respirabilité grâce à la transmission de vapeur humide, de résistance à la pénétration de particules et de résistance à la pénétration et à la perméation chimiques. Cette membrane présente également des caractéristiques de protection contre les mauvaises odeurs.

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