Title:
METHOD FOR PRODUCING CYCLIC OLEFIN RESIN FILM, CYCLIC OLEFIN RESIN FILM, AND COMPOSITE FILM
Document Type and Number:
WIPO Patent Application WO/2019/163637
Kind Code:
A1
Abstract:
The present invention provides a method for producing a cyclic olefin resin film, which comprises a step wherein: a starting material resin, which contains a cyclic olefin resin and an elastomer having a specific melt flow rate, is supplied and melted with use of an extruder that has a supply part, to which the starting material resin is supplied, a compression part and a measurement part under such conditions that the supply part resin transport efficiency satisfies relational expression 0.75 ≤ (supply part resin transport efficiency) ≤ 1.0; and the molten resin extruded from an extrusion port is melt-extruded into a film shape from a die. The present invention also provides: the cyclic olefin resin film; and a composite film which comprises the cyclic olefin resin film.
Inventors:
SAWAYA TAKEAKI (JP)
NAKAGAWA YOSUKE (JP)
NAKAGAWA YOSUKE (JP)
Application Number:
PCT/JP2019/005352
Publication Date:
August 29, 2019
Filing Date:
February 14, 2019
Export Citation:
Assignee:
FUJIFILM CORP (JP)
International Classes:
B29C48/08; B29C48/505; C08J5/18; C08L23/02
Domestic Patent References:
| WO2004035688A1 | 2004-04-29 | |||
| WO2017126572A1 | 2017-07-27 | |||
| WO2015080167A1 | 2015-06-04 | |||
| WO2015198686A1 | 2015-12-30 |
Other References:
ASAHI KASEI CORPORATION: "Tafte H series, P series, M series", AKELASTOMER.COM, April 2016 (2016-04-01), pages 3, XP055633127, Retrieved from the Internet [retrieved on 20190325]
Attorney, Agent or Firm:
TAIYO, NAKAJIMA & KATO (JP)
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