Invention Grant
- Patent Title: Copolyester including cyclic aliphatic unit, method of preparing the same, and optical film with low water absorption and low birefringence including the same
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Application No.: US16992319Application Date: 2020-08-13
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Publication No.: US11667752B2Publication Date: 2023-06-06
- Inventor: Jinhwan Kim , Soo-Jung Kang , SangWon Park , Jae Min Jeong
- Applicant: Research & Business Foundation Sungkyunkwan University
- Applicant Address: KR Suwon-si
- Assignee: Research & Business Foundation Sungkyunkwan University
- Current Assignee: Research & Business Foundation Sungkyunkwan University
- Current Assignee Address: KR Suwon-si
- Agency: NSIP Law
- Priority: KR 20190125770 2019.10.11
- Main IPC: C08G63/85
- IPC: C08G63/85
Abstract:
The present disclosure relates to a copolyester including a polymer formed by polymerization of monomers represented by the following Structural Formula 1 to Structural Formula 4:
(in the above Structural Formula 1 to Structural Formula 4, R1 to R18 are identical to or different from each other and are each independently selected from the group consisting of H, substituted or unsubstituted linear or branched C1-C20 alkyl and substituted or unsubstituted C6-C20 aryl).
(in the above Structural Formula 1 to Structural Formula 4, R1 to R18 are identical to or different from each other and are each independently selected from the group consisting of H, substituted or unsubstituted linear or branched C1-C20 alkyl and substituted or unsubstituted C6-C20 aryl).
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