专利 等待形式审查

Terephthalic Acid Esters Formation

Overview

「Terephthalic Acid Esters Formation」对应一条老挝专利公开记录,由 9449710 Canada Inc. 于 2018-09-13 提交申请,当前状态为等待形式审查。标识字段包括:申请号 P/884;DIP 编号 LAP884;主管局代码 LA;保护类型 Patent - PCT National Phase。时间线要点:公开/公告日 2026-04-24。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 (LAO IP 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 depolymerizationof polyethyl…。

专利 老挝 DIP

申请号 P/884
申请日期 2018-09-13
申请人 9449710 Canada Inc.
代理机构 LAO TRADEMARK AGENCY (LAO IP AGENCY)
类别 C07C 67/03 · C08G 63/91 · C08J 11/24

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基础信息

类型
专利
申请号
P/884
状态
等待形式审查
申请人
9449710 Canada Inc.
代理机构
LAO TRADEMARK AGENCY (LAO IP AGENCY)
申请日期
2018-09-13
公开/公告日
2026-04-24
国际分类
C07C 67/03 · C08G 63/91 · C08J 11/24
商品 / 服务

办理流程

根据当前状态动态标注
  1. 提交申请
  2. 形式审查 进行中
  3. 实质审查
  4. 公开
  5. 授权

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摘要

The present disclosure relates to the formation of terephthalate esters of Formula (I) which are formed by the depolymerizationof 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) R1 and R2 are independently selected from the group consisting of hydrogen, C 1 -C 6 alkyl, C 1 -C 6 haloalkyl, C 1 -C 6 hydroxyalkyl, optionally substituted C 3 -C 8 cycloalkyl, optionally substituted (C 1 -C 6 alkyl)(C 3 -C 8 cycloalkyl), optionally substituted aryl, and optionally substituted (C 1 -C 6 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 depolymerizationof 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) R1 and R2 are independently selected from the group consisting of hydrogen, C 1 -C 6 alkyl, C 1 -C 6 haloalkyl, C 1 -C 6 hydroxyalkyl, optionally substituted C 3 -C 8 cycloalkyl, optionally substituted (C 1 -C 6 alkyl)(C 3 -C 8 cycloalkyl), optionally substituted aryl, and optionally substituted (C 1 -C 6 alkyl)(aryl); provided that one of R 1 or R 2 is not hydrogen.

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