Invention Grant
- Patent Title: Poly(3-hydroxyalkanoate) foam particles and poly(3-hydroxyalkanoate) foam molded article
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Application No.: US16937654Application Date: 2020-07-24
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Publication No.: US11459436B2Publication Date: 2022-10-04
- Inventor: Tetsuya Minami
- Applicant: KANEKA CORPORATION
- Applicant Address: JP Osaka
- Assignee: KANEKA CORPORATION
- Current Assignee: KANEKA CORPORATION
- Current Assignee Address: JP Osaka
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JPJP2018-011788 20180126
- Main IPC: C08J9/20
- IPC: C08J9/20 ; C08J9/22 ; C08J9/06

Abstract:
Provided are poly(3-hydroxyalkanoate) foam particles, which can give a foam molded article having good surface aspects and a low shrinkage ratio of a molding, and the foam molded article. The poly(3-hydroxyalkanoate) foam particles have at least two melting peaks on a DSC curve obtained by differential scanning calorimetry and in which a melting calorie (X) on a high temperature side is 0.1 to 20 J/g, a gel fraction (Y) is 20 to 75% by weight, and the melting calorie (X) and the gel fraction (Y) satisfy Formula: X+Y≥30.
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