Invention Grant
US07750109B2 Use of a residual oligomer recyclate in the production of macrocyclic polyester oligomer
失效
在制备大环聚酯低聚物时使用残留的低聚物回收物
- Patent Title: Use of a residual oligomer recyclate in the production of macrocyclic polyester oligomer
- Patent Title (中): 在制备大环聚酯低聚物时使用残留的低聚物回收物
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Application No.: US11389516Application Date: 2006-03-24
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Publication No.: US07750109B2Publication Date: 2010-07-06
- Inventor: Peter D. Phelps , Jimmy Lynn Webb , David Patrick Phelon , Paul M. Andrusyszyn , Gary R. Faler
- Applicant: Peter D. Phelps , Jimmy Lynn Webb , David Patrick Phelon , Paul M. Andrusyszyn , Gary R. Faler
- Applicant Address: US NY Schenectady
- Assignee: Cyclics Corporation
- Current Assignee: Cyclics Corporation
- Current Assignee Address: US NY Schenectady
- Agency: Goodwin Procter LLP
- Main IPC: C08G63/00
- IPC: C08G63/00 ; C08G63/02
Abstract:
The invention relates to methods and systems for the use of an oligomer recyclate from a depolymerization product stream. The oligomer byproduct of a polyester depolymerization reaction can be used as a reactant in the formation of a polyester. For example, linear oligomer byproduct can be used as a reactant in a solution polymerization to form a low-acid polyalkylene terephthalate.
Public/Granted literature
- US20060235186A1 Use of a residual oligomer recyclate in the production of macrocyclic polyester oligomer Public/Granted day:2006-10-19
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