Title:
ポリエステル系熱収縮フィルム
Document Type and Number:
Japanese Patent JP7370497
Kind Code:
B2
Abstract:
The present invention relates to a heat-shrinkable polyester film having low thermal shrink stress for wall thickness reduction of PET bottles without inhibiting the recyclability of PET bottles. The provided is a heat-shrinkable polyester film derived from a polyester resin as reaction product between a polyvalent carboxylic acid and a polyalcohol, wherein the film has the following characteristics (A) to (D). (A) The melting point measured by DSC of the polyester resin is within 190 to 255° C. (B) to (D) Under predetermined conditions, the heat shrinkage ratio in the main shrinkage direction is within 45 to 70%, the heat shrinkage ratio in the direction orthogonally intersecting the main shrinkage direction is within −1 to 6%, and the thermal shrink stress in the main shrinkage direction is 16 MPa or less.
Inventors:
Hideaki Takahashi
ebony nicole neil
Victoria Marie Moncada Meeks
ebony nicole neil
Victoria Marie Moncada Meeks
Application Number:
JP2023519082A
Publication Date:
October 27, 2023
Filing Date:
November 15, 2021
Export Citation:
Assignee:
Bonset America Corporation
Takiron C.I. Co., Ltd.
Takiron C.I. Co., Ltd.
International Classes:
B29C61/06; C08J5/18
Domestic Patent References:
| JP2019177930A | ||||
| JP2008179122A | ||||
| JP2010000799A |
Attorney, Agent or Firm:
Kenji Emori
Yuko Tanaka
Yuko Tanaka
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