发明名称 |
METHOD OF MAKING TRIMETHYLENE CARBONATE |
摘要 |
A method of synthesizing trimethylene carbonate is disclosed involving (a) reacting 1,3-propanediol and a compound chosen from phosgene and bis- chloroformates to form a polycarbonate intermediate having a specified structural formula; and (b) providing a combination of temperature and pressure corresponding to vapor phase conditions for trimethylene carbonate.
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申请公布号 |
CA2470951(A1) |
申请公布日期 |
2003.07.03 |
申请号 |
CA20022470951 |
申请日期 |
2002.12.12 |
申请人 |
PPG INDUSTRIES OHIO, INC. |
发明人 |
BOWMAN, MARK P.;KREUTZBERGER, CHARLES B. |
分类号 |
C07B61/00;C07D319/06;(IPC1-7):C07C68/02 |
主分类号 |
C07B61/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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