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公开(公告)号：EP4174105A1
公开(公告)日：2023-05-03
申请号：EP22203601.4
申请日：2022-10-25
申请人： Jiangsu Kingfa Sci. & Tech. Advanced Materials Co., Ltd. , Zhuhai Wango Chemical Co., Ltd. , KINGFA SCI. & TECH. CO., LTD.
发明人： ZHANG, Chuanhui , CHEN, Pingxu , YE, Nanbiao , OUYANG, Chunping , MAI, Kaijin , DONG, Xueteng , ZENG, Xiangbin , LU, Changli , CAI, Tongmin
摘要： The present invention discloses a semi-aromatic polyester and a preparation method and an application thereof. The semi-aromatic polyester has a specific scope of double bond content. Compared with the existing semi-aromatic polyester, the semi-aromatic polyester of the present invention has better melting heat retention stability and fine color.
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公开(公告)号：EP4421106A1
公开(公告)日：2024-08-28
申请号：EP22885675.3
申请日：2022-10-12
申请人： Jiangsu Kingfa Sci. & Tech. Advanced Materials Co., Ltd. , Zhuhai Kingfa Biomaterial Co., Ltd. , KINGFA SCI. & TECH. CO., LTD.
发明人： ZHANG, Chuanhui , CHEN, Pingxu , YE, Nanbiao , OUYANG, Chunping , MAI, Kaijin , DONG, Xueteng , ZENG, Xiangbin , LU, Changli , CAI, Tongmin
IPC分类号： C08G63/183 , C08G63/85 , C08L67/02 , C08L67/04 , C08L63/00
CPC分类号： C08G63/183 , C08L63/00 , C08L67/04 , C08L67/02 , C08G63/85
摘要： The present invention discloses a semi-aromatic polyester, a preparation method therefor and use thereof. The content of hydroxyl in a semi-aromatic polyester is controlled, and particularly, the content of hydroxyl linked to aliphatic dicarboxylic acid in the semi-aromatic polyester is controlled to 17-40 mmol/kg, the content of hydroxyl linked to aromatic dicarboxylic acid in the semi-aromatic polyester is controlled to 17-40 mmol/kg, and the total content of hydroxyl is controlled to 35-80 mmol/kg, such that the compatibility of the semi-aromatic polyester with materials, e.g., polylactic acid can be significantly improved, thereby obtaining a high-strength tear-resistant film material.
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公开(公告)号：EP4206257A1
公开(公告)日：2023-07-05
申请号：EP21218097.0
申请日：2021-12-29
发明人： ZHANG, Chuanhui , HUANG, Xianbo , YE, Nanbiao , ZENG, Xiangbin , LU, Changli , CAI, Tongmin
IPC分类号： C08G63/127
摘要： Disclosed in the present invention is a semiaromatic polyester, a preparation method and application thereof. Having a specific segment length and carboxyl group content, the semiaromatic polyester provides a balance of degradation rate and mechanical properties, compared with known semiaromatic polyesters. The 30-day weight retention of the semiaromatic polyester obtained in the present invention may be contained to from 45 to 70%.
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公开(公告)号：EP4206257A3
公开(公告)日：2024-10-30
申请号：EP21218097.0
申请日：2021-12-29
发明人： ZHANG, Chuanhui , HUANG, Xianbo , YE, Nanbiao , ZENG, Xiangbin , LU, Changli , CAI, Tongmin
IPC分类号： C08G63/127
摘要： Disclosed in the present invention is a semiaromatic polyester, a preparation method and application thereof. Having a specific segment length and carboxyl group content, the semiaromatic polyester provides a balance of degradation rate and mechanical properties, compared with known semiaromatic polyesters. The 30-day weight retention of the semiaromatic polyester obtained in the present invention may be contained to from 45 to 70%.
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