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Title:
MULTILAYER FILM AND LIQUID AGENT CONTAINER
Document Type and Number:
WIPO Patent Application WO/2022/210899
Kind Code:
A1
Abstract:
[Problem] To provide: a liquid agent container formed from a multilayer film in which polybutylene terephthalate is used in an outer layer, the liquid agent container being such that elution of a component derived from the polybutylene terephthalante into a liquid contained in the liquid agent container through the multilayer film is suppressed or prevented; and a multilayer film for forming such a liquid agent container. [Solution] Provided is a multilayer film obtained by laminating at least (1) a layer that contains polybutylene terephthalate, (2) a layer that contains a cyclic-olefin-based polymer, (3) a flexible layer that contains an ethylene-based resin, and (4) a layer that contains a polyolefin, the multilayer film being such that the layer (1), the layer (2), and the layer (4), which forms one surface of the multilayer film, are laminated in the stated order. Also provided is a liquid agent container formed from the multilayer film such that the layer (4) serves as the innermost layer.

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Inventors:
TOKIEDA JUNJI (JP)
INOUE TAKANORI (JP)
OTANI SHINGO (JP)
KAJIHARA YASUYUKI (JP)
SHOJI HIDENARI (JP)
Application Number:
PCT/JP2022/016065
Publication Date:
October 06, 2022
Filing Date:
March 30, 2022
Export Citation:
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Assignee:
MITSUI CHEMICALS INC (JP)
OTSUKA PHARMA FACTORY INC (JP)
International Classes:
B32B27/32; B32B27/00; B32B27/36; B65D65/40
Domestic Patent References:
WO2006043459A12006-04-27
WO2006134645A12006-12-21
WO2012008007A12012-01-19
WO2019021759A12019-01-31
WO2012008007A12012-01-19
Foreign References:
JP4887343B22012-02-29
JP5100308B22012-12-19
JP2002219786A2002-08-06
JP2006217975A2006-08-24
JP2011110369A2011-06-09
JPH08309939A1996-11-26
JP2012250487A2012-12-20
EP2784120A12014-10-01
JP2018172554A2018-11-08
JP2002301796A2002-10-15
JP2008253478A2008-10-23
JP2013081494A2013-05-09
Other References:
"Japanese Pharmacopoeia", article "Ultraviolet-Visible absorption spectroscopy described in Transparency Test Method 1"
Attorney, Agent or Firm:
SSINPAT PATENT FIRM (JP)
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