Processing

Please wait...

Settings

Settings

Goto Application

1. WO2020137791 - BIAXIALLY ORIENTED POLYPROPYLENE FILM

Publication Number WO/2020/137791
Publication Date 02.07.2020
International Application No. PCT/JP2019/049808
International Filing Date 19.12.2019
IPC
B29C 55/12 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
55Shaping by stretching, e.g. drawing through a die; Apparatus therefor
02of plates or sheets
10multiaxial
12biaxial
B29K 23/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D103
23Use of polyalkenes as moulding material
B29L 7/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C59
7Flat articles, e.g. films or sheets
C08J 5/18 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H142
5Manufacture of articles or shaped materials containing macromolecular substances
18Manufacture of films or sheets
CPC
B29C 55/12
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
55Shaping by stretching, e.g. drawing through a die; Apparatus therefor
02of plates or sheets
10multiaxial
12biaxial
C08J 5/18
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G
5Manufacture of articles or shaped materials containing macromolecular substances
18Manufacture of films or sheets
Applicants
  • 東洋紡株式会社 TOYOBO CO., LTD. [JP]/[JP]
Inventors
  • 山田 浩司 YAMADA, Kouji
  • 堀之内 一仁 HORINOUCHI, Kazuhito
  • 中野 麻洋 NAKONO, Mahiro
  • 今井 徹 IMAI, Toru
Priority Data
2018-24798428.12.2018JP
2019-19547128.10.2019JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) BIAXIALLY ORIENTED POLYPROPYLENE FILM
(FR) FILM DE POLYPROPYLÈNE À ORIENTATION BIAXIALE
(JA) 二軸配向ポリプロピレンフィルム
Abstract
(EN)
The present invention provides a biaxially oriented polypropylene film that has excellent heat resistance even at the high temperature of 150°C and high rigidity, easily maintains a bag shape when used as a packaging bag, and also exhibits little pitch displacement during printing and few wrinkles at a sealing portion when heat-sealed. A biaxially oriented polypropylene film, wherein in relation to the azimuthal dependence of the (110) plane of a polypropylene α-type crystal as obtained by wide-angle X-ray diffraction measurement, the full width at half maximum of the peak derived from the oriented crystal in the width direction is 27° or less, and tanδ obtained from the ratio (E”/E’) of the loss modulus (E”) to the storage modulus (E’) as obtained by dynamic viscoelastic measurement is 0.2 to 0.4 inclusive in the width direction.
(FR)
L'invention fournit un film de polypropylène à orientation biaxiale qui présente une rigidité élevée, qui est doté d'une excellente résistance à la chaleur à des températures élevées de 150°C, qui conserve facilement une forme de sac lorsqu'il consiste en un sac d'emballage, et qui présente peu de décalage de pas lors d'une impression et peu de plis de partie scellement après soudage à chaud. Plus précisément, l'invention concerne un film de polypropylène à orientation biaxiale dans lequel la demi-largeur d'un pic dérivé de cristaux alignés dans une direction de la largeur dans une dépendance azimutale d'un plan (110) de cristaux type α de polypropylène obtenue par mesure de diffraction des rayons X grand angle, est inférieure ou égale à 27°, et la valeur tanδ obtenue à partir du rapport (E"/E') d'un module d'élasticité de conservation (E')et d'un module d'élasticité de pertes (E") obtenus au moyen d'une mesure de viscoélasticité dynamique, est supérieure ou égale à 0,2 et inférieure ou égale à 0,4 dans la direction de la largeur.
(JA)
剛性が高く、150℃もの高温での耐熱性にも優れ、包装袋としたときの袋形状を保持しやすく、しかも印刷時のピッチずれやヒートシールしたときにシール部のシワが少ない二軸配向ポリプロピレンフィルムを提供すること。 広角X線回折測定で得られるポリプロピレンα型結晶の(110)面の方位角依存性において、幅方向の配向結晶に由来するピークの半値幅が27°以下であり、動的粘弾性測定で得られる貯蔵弾性率(E')と損失弾性率(E")の比(E"/E')から得られるtanδが幅方向において0.2以上0.4以下である二軸配向ポリプロピレンフィルム。
Latest bibliographic data on file with the International Bureau