Aliphatischer Polyester und Verwendung davon

Details

Veröffentlichungs-Nr.

EP4806938

Anmeldetag

9. März 2026

Veröffentlichung

16. September 2026

Rechtsraum

EP

IPC

C08G63/16, C08J5/18, C08L67/02

Abstract

The present invention provides an aliphatic polyester and use thereof. The aliphatic polyester includes a dicarboxylic acid residue and a diol residue; the dicarboxylic acid residue includes the following residues: a1), based on a total molar percentage content of a1) and a2) as 100 mol%, 65-90 mol% of a succinic acid residue; and a2), based on the total molar percentage content of a1) and a2) as 100 mol%, 10-35 mol% of a sebacic acid residue; the diol residue is selected from a 1,4-butanediol residue with a molar content at least equal to that of the dicarboxylic acid residue; and the aliphatic polyester includes an oligomer with a number-average molecular weight < 1,000 as measured by gel permeation chromatography (GPC), and a mass percentage content of the oligomer with the number-average molecular weight < 1,000 as measured by GPC in the aliphatic polyester is 0.08-3.5 wt%. A packaging film prepared from the aliphatic polyester possesses both good food contact performance and unwinding performance.

Anmelder

Firmen

KINGFA SCI. & TECH. CO., LTD.
Zhuhai Kingfa Biomaterial Co., Ltd.
Liaoning Kingfa Biomaterial Co., Ltd.

Land

🇨🇳 China

Fachgebiete