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公开(公告)号：US20230374204A1
公开(公告)日：2023-11-23
申请号：US18320843
申请日：2023-05-19
Applicant: Ecovance Co. Ltd.
Inventor： Kyung Youn KIM , Seong Dong KIM , Hoon KIM , Jun Su BYEON
IPC: C08G63/183
CPC classification number: C08G63/183
Abstract: An eco-friendly biodegradable molded article, which includes a polyester resin including a diol, an aromatic dicarboxylic acid and an aliphatic dicarboxylic acid, wherein a biodegradability per hydrolysis degree of the biodegradable molded article is 1.35 or more, wherein the biodegradability per hydrolysis degree is obtained by dividing a biodegradability after nine weeks by a hydrolysis degree after one week, wherein the biodegradability after nine weeks and the hydrolysis degree after one week are measured by a measurement method below.
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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
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.
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公开(公告)号：US20230374297A1
公开(公告)日：2023-11-23
申请号：US18320795
申请日：2023-05-19
Applicant: Ecovance Co. Ltd.
Inventor： Seong Dong KIM , Kyung Youn KIM , Hoon KIM , Jun Su BYEON , Hye Jin KIM
CPC classification number: C08L67/02 , C08J3/28 , C08K3/014 , C08K5/11 , C08J5/18 , C08K5/1535 , C08L2201/06 , C08J2367/02 , C08L2205/24
Abstract: An eco-friendly biodegradable molded article, including: a polyester resin including a diol, an aromatic dicarboxylic acid and an aliphatic dicarboxylic acid, wherein, when continuously irradiated with ultraviolet rays from a UVA 340 ultraviolet light lamp at an intensity of 0.75 W/m2, a tensile strength decrease rate from the beginning of the ultraviolet irradiation to 1 day ranges from 5% to 40%.
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Patent Agency Ranking
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.
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5.发明公开公开(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
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%.
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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.
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7.发明公开公开(公告)号：US20230374298A1
公开(公告)日：2023-11-23
申请号：US18320826
申请日：2023-05-19
Applicant: Ecovance Co. Ltd.
Inventor： Kyung Youn KIM , Seong Dong KIM , Hoon KIM , Jun Su BYEON , Joo Young JUNG , Ji Yeon RYU
CPC classification number: C08L67/02 , C08J5/18 , C08L2201/06 , C08L2203/16 , C08J2367/02
Abstract: An eco-friendly biodegradable polyester resin composition includes: a polyester resin including a diol, an aromatic dicarboxylic acid and an aliphatic dicarboxylic acid; and 5000 ppm to 20000 ppm of a hydrophilic regulator having a molecular weight of 400 to 1300.
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8.发明公开公开(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
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%.
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