Dimensionally stable polyester melt blown web

Details Dimensionally stable polyester melt blown web Dimensionally stable polyester melt blown web

C - Chemistry, Metallurgy

08

J

C08J 7/02 (2006.01) A61F 13/15 (2006.01)

Patent

CA 2052010

DIMENSIONALLY STABLE POLYESTER MELT BLOWN WEB ABSTRACT A dimensionally stable polyester melt blown web composition is disclosed. The polyester melt blown web is obtained by contacting the web with a solvent, and drying the web. The solvents which are used have total solubility parameters (So) of 8.5 to 12.0 (cal/cm3)1/2, solubility parameter component due to hydrogen bonding (Sh) of 0.5 to 5.5 (cal/cm3)1/2 and solubility parameter component due to polar forces (Sp) of 0.5 to 7.0 (cal/cm3)1/2). The polyesters used for such melt blown webs include poly(ethylene-terephthalate), poly(cyclohexylene dimethylene terephthalate) and blends and copolymers of these polymers. jaw/jfs/forfilng/ff360806

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