公开(公告)号：US20230374296A1

公开(公告)日：2023-11-23

申请号：US18320220

申请日：2023-05-19

Applicant: Ecovance Co. Ltd.

Inventor： Seong Dong KIM ,  Kyung Youn KIM ,  Hoon KIM ,  Jun Su BYEON ,  Eun Sun JOENG

IPC: C08L67/02 ,  C08K5/098 ,  C08K5/103 ,  C08J5/18

CPC classification number: C08L67/02 ,  C08K5/098 ,  C08K5/103 ,  C08J5/18 ,  C08L2201/06 ,  C08J2367/02

Abstract: An eco-friendly biodegradable molded article which includes a polyester resin including a diol, an aromatic dicarboxylic acid and an aliphatic dicarboxylic acid and has a wet hardness reduction rate of 12% to 25%.

公开(公告)号：US20230399507A1

公开(公告)日：2023-12-14

申请号：US18320208

申请日：2023-05-19

Applicant: Ecovance Co. Ltd.

Inventor： Seong Dong KIM ,  Kyung Youn KIM ,  Hoon KIM ,  Kyoung Hwan YOU ,  Jun Su BYEON ,  Eun Sun JOENG

IPC: C08L67/02 ,  C08J5/18

CPC classification number: C08L67/02 ,  C08J5/18 ,  C08L2201/06 ,  C08L2201/52 ,  C08L2203/16 ,  C08J2367/02

Abstract: An eco-friendly biodegradable polyester resin composition, including: a polyester resin including a diol, an aromatic dicarboxylic acid and an aliphatic dicarboxylic acid, wherein a soft segment ratio of the polyester resin is 0.21 to 0.29, and wherein the soft segment ratio is a ratio of a diol, bonded between the aliphatic dicarboxylic acid and the aliphatic dicarboxylic acid, among the diols.

公开(公告)号：US20240002656A1

公开(公告)日：2024-01-04

申请号：US18320217

申请日：2023-05-19

Applicant: Ecovance Co. Ltd.

Inventor： Seong Dong KIM ,  Kyung Youn KIM ,  Joo Young JUNG ,  Ji Yeon RYU ,  Hoon KIM ,  Jun Su BYEON ,  Eun Sun JOENG

IPC: C08L67/02

CPC classification number: C08L67/02

Abstract: An eco-friendly biodegradable polyester resin composition includes a polyester resin that includes a diol, an aromatic dicarboxylic acid and an aliphatic dicarboxylic acid, wherein a biodegradability per aliphatic carboxylic acid is 1.7 or more, the biodegradability per aliphatic carboxylic acid being a value obtained by dividing a biodegradability after 9 weeks by a ratio of the aliphatic dicarboxylic acid to the total dicarboxylic acid, and the biodegradability after 9 weeks being 85% or more.

公开(公告)号：US20230374294A1

公开(公告)日：2023-11-23

申请号：US18320216

申请日：2023-05-19

Applicant: Ecovance Co. Ltd.

Inventor： Kyung Youn KIM ,  Seong Dong KIM ,  Hoon KIM ,  Jun Su BYEON ,  Eun Sun JOENG

IPC: C08L67/02 ,  C08K3/02

CPC classification number: C08L67/02 ,  C08K3/02 ,  C08K2003/023 ,  C08K2003/0856

Abstract: An eco-friendly biodegradable polyester resin composition includes a polyester resin that includes a diol, an aromatic dicarboxylic acid and an aliphatic dicarboxylic acid, wherein the first weight swelling rate of the biodegradable polyester resin composition is 4% to 20%.

公开(公告)号：US20230374203A1

公开(公告)日：2023-11-23

申请号：US18320742

申请日：2023-05-19

Applicant: Ecovance Co. Ltd.

Inventor： Seong Dong KIM ,  Kyung Youn KIM ,  Hoon KIM ,  Jun Su BYEON ,  Eun Sun JOENG

IPC: C08G63/183

CPC classification number: C08G63/183

Abstract: Disclosed is an eco-friendly biodegradable polyester resin composition, including: a polyester resin including a diol, an aromatic dicarboxylic acid and an aliphatic dicarboxylic acid, wherein an alternating ratio of the polyester resin is 0.3 to 0.7, wherein the alternating ratio is a ratio of a diol, bonded between the aromatic dicarboxylic acid and the aliphatic dicarboxylic acid, among the diol.