Terephthalic Acid Esters Formation
The following summary describes a Laos Patent titled “Terephthalic Acid Esters Formation”, filed by 9449710 Canada Inc. on 2018-09-13; current status: Awaiting formal examination. Identifiers include application No. P/884; DIP id LAP884; protection kind Patent - PCT National Phase. Key dates: publication 2026-04-24. Classification: C07C 67/03、C08G 63/91、C08J 11/24. Inventor(s)/designer(s): Adel, ESSADDAM, Fares, ESSADDAM. Abstract hint: The present disclosure relates to the formation of terephthalate esters of Formula (I) which are formed by the depolymerizationof polyethyl…. This prose is informational only and does not constitute legal advice, ownership proof or an infringement opinion.
P/884
Mark
Key facts
- Type
- Patent
- App. no.
P/884- Status
- Awaiting formal examination
- Applicant
- 9449710 Canada Inc.
- Agent
- LAO TRADEMARK AGENCY (LAO IP AGENCY)
- Filing date
- 2018-09-13
- Publication
- 2026-04-24
- Protection kind
- Patent - PCT National Phase
- Applicant address
- 9449710 Canada Inc. · 480 Fernand-Poitras Street, Terrebonne, Qu6bec J6Y 1Y4, Canada · CA
- Agent address
- LAO TRADEMARK AGENCY (LAO IP AGENCY) · LLC Bldg, Nongbone Road, P.O.BOX 925,Tel: +(856 21)264 866, 264 877; Fax: +(856 21) 264 344 · LA
- Nice / IPC classes
- C07C 67/03 · C08G 63/91 · C08J 11/24
- Goods / services
- —
Process
Steps follow the current public status-
Filed
-
Formal examination In progress
-
Substantive examination
-
Published
-
Granted
Related records
Linked from the LaoBiz.com company databaseSimilar Patent
Abstract
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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