Title:
樹脂組成物及び易引裂性フィルム、易引裂性シート
Document Type and Number:
Japanese Patent JP7456197
Kind Code:
B2
Abstract:
To provide a resin composition which is excellent in easy tearability when being processed into a film and a sheet, has a small number of optical defects, and is also excellent in appearance, and easily tearable film and sheet using the resin composition.SOLUTION: A resin composition is composed of at least 20-80 wt.% of a polyolefin-based resin (a) and 20-80 wt.% of a cyclic olefin-based resin (b). (A) In viscosity at a shear rate of 24S-1 obtained by flow curve measurement, a gradient of a linear approximate expression obtained by an Arrhenius plot with a natural logarithm (ln (viscosity) (Pas)) of the viscosity as an axis of ordinate and an inverse number of 1,000/T(K-1) as an axis of abscissas is 4.0 or more and 7.0 or less. (B) The number of counts of defects with a size of 100 μm or smaller when the resin composition is formed into a film with a thickness of 50 μm is 5,000 pieces/m2 or less. (C) A storage elastic modulus at 30°C obtained by solid viscoelasticity is 4.0×108 Pa or more. (D) A glass transition temperature of the cyclic olefin-based resin (b) is 60°C or higher.SELECTED DRAWING: None
Inventors:
Kota Ito
Application Number:
JP2020035768A
Publication Date:
March 27, 2024
Filing Date:
March 03, 2020
Export Citation:
Assignee:
Japan Polyethylene Co., Ltd.
International Classes:
C08L23/00; B32B27/32; C08J5/18; C08L23/06; C08L23/26; C08L45/00
Domestic Patent References:
| JP2020015804A | ||||
| JP2019093649A | ||||
| JP2015208912A | ||||
| JP2015123642A | ||||
| JP2018069735A | ||||
| JP2015199797A |
Attorney, Agent or Firm:
Patent Attorney Corporation Tsukuni