Invention Grant
US07790833B2 Processes for the polymerization of trimethylene carbonate to poly(trimethylene glycol carbonate trimethylene glycol ether) diol
有权
将三亚甲基碳酸酯聚合成聚（三亚甲基二醇碳酸酯三亚甲基二醇醚）二醇的方法
- Patent Title: Processes for the polymerization of trimethylene carbonate to poly(trimethylene glycol carbonate trimethylene glycol ether) diol
- Patent Title (中): 将三亚甲基碳酸酯聚合成聚（三亚甲基二醇碳酸酯三亚甲基二醇醚）二醇的方法
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Application No.: US12277644Application Date: 2008-11-25
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Publication No.: US07790833B2Publication Date: 2010-09-07
- Inventor: Robert DiCosimo , Neville Everton Drysdale , Hari Babu Sunkara
- Applicant: Robert DiCosimo , Neville Everton Drysdale , Hari Babu Sunkara
- Applicant Address: US DE Wilmington
- Assignee: E.I. du Pont de Nemours and Company
- Current Assignee: E.I. du Pont de Nemours and Company
- Current Assignee Address: US DE Wilmington
- Agent Gail D. Tanzer
- Main IPC: C08G64/00
- IPC: C08G64/00 ; C08G63/02
Abstract:
This invention relates to solventless processes for the polymerization of an unsubstituted or substituted trimethylene carbonate to an unsubstituted or substituted poly(1,3-propanediol carbonate 1,3-propanediol ether)diol, using one or more solid acid catalysts.
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