TEREPHTHALIC ACID ESTERS FORMATION
本页收录老挝专利「TEREPHTHALIC ACID ESTERS FORMATION」的公开登记要点，由 9449710 Canada Inc. 于 2018-09-13 提交申请，当前状态为已注册。公开档案中可核验：申请号 P/735，DIP 编号 LAP735，主管局代码 LA，保护类型 Patent - PCT National Phase。时间线要点：公开/公告日 2023-09-15；授权日 2023-09-13；届满/失效参考日 2038-09-13。国际分类 / IPC 标注为 C07C 67/03、C08G 63/91、C08J 11/24。发明人 / 设计人包括 Adel, ESSADDAM、Fares, ESSADDAM。代理机构 / 代理人记载为 Lao Trademark Agency。公开摘要提示：The present disclosure relates to the formation of terephthalate esters of Formula (I) which are formed by the depolymerization of polyethy…。
P/735
图样
基础信息
- 类型
- 专利
- 申请号
P/735- 状态
- 已注册
- 申请人
- 9449710 Canada Inc.
- 代理机构
- Lao Trademark Agency
- 申请日期
- 2018-09-13
- 注册号
P/735- 公开 / 公告日
- 2023-09-15
- 注册 / 授权日
- 2023-09-13
- 到期日
- 2038-09-13
- 保护类型
- Patent - PCT National Phase
- 公报号
- 224 · 2023-09-15
- 申请人地址
- 9449710 Canada Inc. · 480 Fernand-Poitras Street, Terrebonne, Que'bec J6Y 1Y4, Canada · CA
- 代理地址
- Lao Trademark Agency · 148-149 Ban Sisavath Kang, Unit 16 Chanthabury District, P.O. Box: 925, Vientiane · LA
- 国际分类
- C07C 67/03 · C08G 63/91 · C08J 11/24
- 商品 / 服务
- —
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摘要
The present disclosure relates to the formation of terephthalate esters of Formula (I) which are formed by the depolymerization of polyethylene terephthalate (PET) or poly(ethylene glycol-co-1,4-cyclohexanedimethanol terephthalate). The depolymerization process comprises contacting polyethylene terephthalate or poly(ethylene glycol-co-1,4-cyclohexanedimethanol terephthalate) with a solvent for swelling the polyester, an alcoholic solvent, and a sub-stoichiometric amount of an alkoxide. In the Formula (I) R 1 and R 2 are independently selected from the group consisting of hydrogen, C1-C6 alkyl, C1-C6 haloalkyl, C1-C6 hydroxyalkyl, optionally substituted C3-C8 cycloalkyl, optionally substituted (C1-C6 alkyl)(C3-C8 cycloalkyl), optionally substituted aryl, and optionally substituted (C1-C6 alkyl)(aryl); provided that one of R 1 or R 2 is not hydrogen.
The present disclosure relates to the formation of terephthalate esters of Formula (I) which are formed by the depolymerization of polyethylene terephthalate (PET) or poly(ethylene glycol-co-1,4-cyclohexanedimethanol terephthalate). The depolymerization process comprises contacting polyethylene terephthalate or poly(ethylene glycol-co-1,4-cyclohexanedimethanol terephthalate) with a solvent for swelling the polyester, an alcoholic solvent, and a sub-stoichiometric amount of an alkoxide. In the Formula (I) R 1 and R 2 are independently selected from the group consisting of hydrogen, C1-C6 alkyl, C1-C6 haloalkyl, C1-C6 hydroxyalkyl, optionally substituted C3-C8 cycloalkyl, optionally substituted (C1-C6 alkyl)(C3-C8 cycloalkyl), optionally substituted aryl, and optionally substituted (C1-C6 alkyl)(aryl); provided that one of R 1 or R 2 is not hydrogen.
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