公开(公告)号：US20180133951A1

公开(公告)日：2018-05-17

申请号：US15564090

申请日：2016-04-12

Applicant: NITTO DENKO CORPORATION

Inventor： Yasuhiro TAKEDA ,  Yoshitake SHIGEMATSU ,  Kohei TAKEDA ,  Shou UCHIDA ,  Muneshige NAKAGAWA ,  Shinsuke IKISHIMA

IPC: B29C55/10 ,  C08J9/00 ,  C08K3/26 ,  C08L23/04

Abstract: The stretchable porous film of the present invention includes voids in a surface thereof, in which: the stretchable porous film has an air permeability measured with an Oken-type air permeability meter of less than 99,999 sec/100 cc; the stretchable porous film has such an extending direction that an air permeability measured with the Oken-type air permeability meter in a state in which the stretchable porous film is extended by 100% becomes less than 60,000 sec/100 cc; and the stretchable porous film has such a pulling direction that when, in a hysteresis test, the stretchable porous film is pulled from a width of 20 mm and an inter-chuck distance of 30 mm to an inter-chuck distance of 60 mm at a pulling speed of 50 mm/min and held for 1 minute, and then the pulling of the inter-chuck distance is released, a residual strain becomes 10 mm or less.

公开(公告)号：US20180133357A1

公开(公告)日：2018-05-17

申请号：US15564302

申请日：2016-04-12

Applicant: NITTO DENKO CORPORATION

Inventor： Kohei TAKEDA ,  Shou UCHIDA ,  Muneshige NAKAGAWA ,  Shinsuke IKISHIMA ,  Yasuhiro TAKEDA ,  Yoshitake SHIGEMATSU

IPC: A61L15/24 ,  A61F13/49 ,  A61F13/15 ,  C08L23/12 ,  C08K3/26 ,  A61L15/22 ,  A61L15/18

CPC classification number: A61L15/24 ,  A61F13/00012 ,  A61F13/15203 ,  A61F13/49009 ,  A61F13/51121 ,  A61F13/51401 ,  A61F2013/15552 ,  A61L15/18 ,  A61L15/20 ,  A61L15/225 ,  A61L15/42 ,  B29C55/005 ,  B29C55/04 ,  B29C55/10 ,  B29D7/01 ,  B29K2023/00 ,  B29K2105/16 ,  B29K2995/0065 ,  B29L2031/4835 ,  B29L2031/4878 ,  B32B3/266 ,  B32B27/08 ,  B32B27/20 ,  B32B27/205 ,  B32B27/306 ,  B32B27/308 ,  B32B27/32 ,  B32B27/327 ,  B32B27/36 ,  B32B2250/03 ,  B32B2250/40 ,  B32B2264/0235 ,  B32B2264/025 ,  B32B2264/102 ,  B32B2264/104 ,  B32B2270/00 ,  B32B2307/50 ,  B32B2307/724 ,  B32B2555/02 ,  C08J5/18 ,  C08J9/00 ,  C08J2323/12 ,  C08J2423/16 ,  C08K3/26 ,  C08K13/04 ,  C08K2003/265 ,  C08K2201/003 ,  C08K2201/005 ,  C08L23/04 ,  C08L23/12 ,  C08L23/14 ,  C08L2203/02 ,  C08L2203/16 ,  C08L2205/025 ,  C08L23/06

Abstract: Provided is a stretchable film having excellent stretchability and excellent air permeability. Also provided is an article including such stretchable film. The stretchable film of the present invention includes an olefin-based resin and a filler.