Back to results
US 2023/0399507 A1Published application
Biodegradable polyester resin composition, biodegradable polyester film including the same and biodegradable molded article including biodegradable polyester resin composition
AssigneeEcovance Co. Ltd.
InventorsSeong Dong KIM, Kyung Youn KIM, Hoon KIM, Kyoung Hwan YOU, Jun Su BYEON, Eun Sun JOENG
Life of this patent
Estimating the term…
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.
Claims20
A biodegradable polyester resin composition, comprising:
- a polyester resin comprising a diol, an aromatic dicarboxylic acid and an aliphatic dicarboxylic acid,
- wherein a soft segment ratio of the polyester resin ranges from 0.21 to 0.29, and
- wherein the soft segment ratio is a first ratio of a diol quantity, bonded between one aliphatic dicarboxylic acid and another aliphatic dicarboxylic acid, to a total quantity of diols in the polyester resin.
A biodegradable polyester film, comprising:
- a polyester resin comprising a diol, an aromatic dicarboxylic acid and an aliphatic dicarboxylic acid,
- wherein a soft segment ratio of the polyester resin ranges from 0.21 to 0.29, and
- wherein the soft segment ratio is a first ratio of a diol quantity, bonded between one aliphatic dicarboxylic acid and another aliphatic dicarboxylic acid, to a total quantity of diols in the polyester resin.
A biodegradable molded article, comprising:
- a polyester resin comprising a diol, an aromatic dicarboxylic acid and an aliphatic dicarboxylic acid,
- wherein a soft segment ratio of the polyester resin ranges from 0.21 to 0.29, and
- wherein the soft segment ratio is a first ratio of a diol quantity, bonded between one aliphatic dicarboxylic acid and another aliphatic dicarboxylic acid, to a total quantity of diols.
Dependencies are inferred from the claim text.