Invention Grant
- Patent Title: Addition of organic initiators during the pressure drop in vinyl chloride monomer polymerization reactions
- Patent Title (中): 在氯乙烯单体聚合反应过程中加入有机引发剂
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Application No.: US12044768Application Date: 2008-03-07
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Publication No.: US07834110B2Publication Date: 2010-11-16
- Inventor: Lambertus Meulenbrugge , Koen Antoon Kornelis Vanduffel , Hans Westmijze
- Applicant: Lambertus Meulenbrugge , Koen Antoon Kornelis Vanduffel , Hans Westmijze
- Applicant Address: NL Arnhem
- Assignee: Akzo Nobel N. V.
- Current Assignee: Akzo Nobel N. V.
- Current Assignee Address: NL Arnhem
- Agency: Kenyon & Kenyon LLP
- Main IPC: C08F2/00
- IPC: C08F2/00 ; C08F4/38 ; C08F4/28 ; C08F114/06
Abstract:
The invention pertains to a process to polymerize one or more monomers wherein one or more initiators and optionally one or more surfactants are added to a polymerization mixture when the pressure in the polymerization reactor is dropping. This process allows a shorter polymerization time due to a higher pressure drop rate at the end of the polymerization reaction. Moreover, the cooling capacity of the polymerization reactor is used more efficiently.
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