Invention Grant
US08901272B2 Polyester polymers with low acetaldehyde generation rates and high vinyl ends concentration
有权
具有低乙醛生成速率和高乙烯基末端浓度的聚酯聚合物
- Patent Title: Polyester polymers with low acetaldehyde generation rates and high vinyl ends concentration
- Patent Title (中): 具有低乙醛生成速率和高乙烯基末端浓度的聚酯聚合物
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Application No.: US11701794Application Date: 2007-02-02
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Publication No.: US08901272B2Publication Date: 2014-12-02
- Inventor: Mary Therese Jernigan
- Applicant: Mary Therese Jernigan
- Applicant Address: MX San Pedro Garza Garcia
- Assignee: Grupo Petrotemex, S.A. de C.V.
- Current Assignee: Grupo Petrotemex, S.A. de C.V.
- Current Assignee Address: MX San Pedro Garza Garcia
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Main IPC: C08G63/00
- IPC: C08G63/00 ; C08G63/83 ; C08G63/85 ; C08G63/84 ; C08G63/78 ; C08G63/02 ; C08G63/183
Abstract:
A polyester polymer comprising alkylene arylate units, said polymer having an It.V. of at least 0.72 dl/g, a vinyl ends concentration of at least 0.8 microequivalents per gram, an AA generation rate of less than 20 ppm are prepared by addition of a catalyst deactivator either late in the polycondensation or upon remelting of a solid polyester polymer.
Public/Granted literature
- US20080188602A1 Polyester polymers with low acetaldehyde generation rates and high vinyl ends concentration Public/Granted day:2008-08-07
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