Title:
MULTILAYER FILM
Document Type and Number:
WIPO Patent Application WO/2018/230260
Kind Code:
A1
Abstract:
The present invention is a multilayer film in which: a first acrylic resin layer (α1), an aromatic polycarbonate resin layer (β), and a second acrylic resin layer (α2) are directly laminated in the stated order; the aromatic polycarbonate resin constituting the aromatic polycarbonate resin layer (β) is a product of ester exchange between a polycarbonic acid ester of an aromatic dihydroxy compound and a low-crystalline or amorphous aromatic polyester; and the relationships (Tβ - Tα1) ≤ 30 and (Tβ - Tα2) ≤ 30 (where Tα1 is the glass transition temperature of the acrylic resin constituting the first acrylic resin layer (α1), Tα2is the glass transition temperature of the acrylic resin constituting the second acrylic resin layer (α2), Tβ is the glass transition temperature of the aromatic polycarbonate resin constituting the aromatic polycarbonate resin layer (β), and all of the temperatures are measured in degrees Celsius) are satisfied. The glass transition temperature of the aromatic polycarbonate resin should be 100-140°C.
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Inventors:
YAMBE HIDEAKI (JP)
NAKASHIMA KOHEI (JP)
NAKASHIMA KOHEI (JP)
Application Number:
PCT/JP2018/019344
Publication Date:
December 20, 2018
Filing Date:
May 18, 2018
Export Citation:
Assignee:
RIKEN TECHNOS CORP (JP)
International Classes:
B32B27/36; B32B27/30; C08G64/18
Domestic Patent References:
| WO2016147739A1 | 2016-09-22 | |||
| WO2017030147A1 | 2017-02-23 | |||
| WO2016052989A1 | 2016-04-07 |
Foreign References:
| JP2016193600A | 2016-11-17 | |||
| JP2016020052A | 2016-02-04 | |||
| JP2015083370A | 2015-04-30 | |||
| JP2015066812A | 2015-04-13 | |||
| JP2009196153A | 2009-09-03 | |||
| JP2012096357A | 2012-05-24 | |||
| JP2013193241A | 2013-09-30 | |||
| JP2012121271A | 2012-06-28 | |||
| JP2015083370A | 2015-04-30 | |||
| JP5870222B1 | 2016-02-24 | |||
| JP5963376B2 | 2016-08-03 | |||
| JP2016006936A | 2016-01-14 | |||
| JP2016029588A | 2016-03-03 |
Other References:
"Polymer Analysis Handbook", vol. 1, 20 September 2008, ASAKURA SHOTEN CO., LTD.
Attorney, Agent or Firm:
ASAMURA PATENT OFFICE, P.C. (JP)
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