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US 12,516,169 B2Granted
Stretch film and method for producing same
AssigneeC.I. Takiron Corporation
InventorKeiichi Mori
Life of this patent
Estimating the term…
Abstract
A stretch film (1) contains an olefin elastomer and an inorganic filler (3). Stress at 50% elongation is 6.0 N or more and 15.0 N or less, and moisture permeability is 1000 g/(m2·24 h) or more.
Claims12
A stretch film containing an olefin elastomer and an inorganic filler, wherein
- stress at 50% elongation is 6.0 N/mm2 or more and 15.0 N/mm2 or less, and moisture permeability is 1000 g/(m2·24 h) or more.
A method for producing a stretch film, the method including at least the steps of
- preparing a primary film containing an olefin elastomer and an inorganic filler, and
- uniaxially stretching the primary film, wherein
- a stretching temperature during film forming by the uniaxial stretching is 20° C. or more and less than 70° C., and a stretch ratio is 1.8 times or more and 4.5 times or less.
Dependencies are inferred from the claim text.