Polymilchsäureharzzusammensetzung sowie Formkörper und Herstellungsverfahren dafür

Details

Veröffentlichungs-Nr.

EP4335887

Aktenzeichen

EP23195354

Anmeldetag

5. September 2023

Veröffentlichung

10. Dezember 2025

Erteilung

10. Dezember 2025

Rechtsraum

EP

IPC

C08G63/08C08G63/82C08G63/85C08G63/91C08L67/04

Abstract

A polylactic acid resin composition includes a polylactic acid resin in an amount of 99% by mass or more. A complex viscosity η*<(20)> of the polylactic acid resin composition is 2×10<3> Pa·s or higher. A ratio of the complex viscosity η*<(20)> to a complex viscosity η*<(5)>, which is represented by [η*<(20)>/η*<(5)>], is 0.6 or higher. The complex viscosity η*<(5)> and the complex viscosity η*<(20)> are complex viscosities respectively measured 5 minutes and 20 minutes after the start of measurement using a parallel plate-type rotary viscometer under measurement conditions below: [Measurement Conditions] -Parallel plates: 20 mm in diameter, made of aluminum; -Temperature: 200°C; -Gap between the parallel plates: 1.00 mm; -Frequency: 1 Hz (6.28 rad/s); -Atmosphere: under dry air (dew point: -60°C); and -Size of measurement sample: a strip that is 30 µm thick, 7 mm wide, and 35 mm long.

Anmelder

Firmen

HighChem Co., Ltd
Ricoh Company, Ltd.

Land

🇯🇵 Japan

Fachgebiete