Title:
加飾多層押出ブローボトル
Document Type and Number:
Japanese Patent JP6943020
Kind Code:
B2
Abstract:
The present invention provides a decorative multi-layer extrusion molded bottle which has an inner layer formed of a propylene-based resin and yet is capable of stably presenting a superior metallic feel. This decorative multi-layer extrusion blow-molded bottle comprises an inner layer which is formed of a propylene-based resin and a metallic layer which is disposed on the outer side of said inner layer and in which a metallic pigment is dispersed, and is characterized in that: a resin constituting the metallic layer includes a propylene-based resin; and a resin constituting an inner adjacent layer to the metallic layer satisfies conditional formula (1): η6≥V6-2000 and conditional formula (2): η30≥V30-500, where the shear viscosities (Pa·s) of said resin at shear velocities of 6s- 1 and 30s- 1 when measured at 210°C are defined as V6 and V30, respectively. In formulae (1) and (2), η6 denotes the shear viscosity (Pa·s) of the resin constituting the metallic layer at a shear velocity of 6s- 1 when measured at 210°C, and η30 denotes the shear viscosity (Pa·s) of the resin constituting the metallic layer at a shear velocity of 30s- 1 when measured at 210°C.
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Inventors:
Yuichiro Kato
Application Number:
JP2017105381A
Publication Date:
September 29, 2021
Filing Date:
May 29, 2017
Export Citation:
Assignee:
Toyo Seikan Co., Ltd.
International Classes:
B32B27/00; B29C49/04; B29C49/22; B32B27/20; B32B27/32; B65D1/02; C08K3/08; C08L23/12
Domestic Patent References:
| JP59050724U | ||||
| JP7089526A | ||||
| JP2001038855A |
Foreign References:
| WO2009078311A1 | ||||
| WO2017038623A1 |
Attorney, Agent or Firm:
Naozumi Ono
Sachiko Okunuki
Sachiko Okunuki