Patent ID: 11898031
Assignee: ECOVANCE CO. LTD.
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C | IPC C

Claim 7:
8. The biodegradable polyester resin composition according to claim 1, wherein a water contact angle of the biodegradable polyester resin composition measured by a measurement method below is 65° to 90°, and a polarity of the biodegradable polyester resin composition measured by a measurement method below is 4 mN/m to 7 mN/m:
wherein in the measurement method
the biodegradable polyester resin composition is dried at 80° C., placed in a stainless steel mold, and compressed at 210° C. under a pressure of 10 MPa for 3 minutes to produce a polyester sheet having a thickness of 300 μm, and the water contact angle and the polarity are measured on a surface of the polyester sheet.