Invention Grant
- Patent Title: Process for the production of a polyvinyl-chloride (PVC) resin
- Patent Title (中): 生产聚氯乙烯(PVC)树脂的方法
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Application No.: US13240291Application Date: 2011-09-22
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Publication No.: US09334344B2Publication Date: 2016-05-10
- Inventor: Johann Hiermeier , Ulrich Lauter , Peter Voth
- Applicant: Johann Hiermeier , Ulrich Lauter , Peter Voth
- Applicant Address: DE Isamaning
- Assignee: VINNOLIT GMBH & CO. KG
- Current Assignee: VINNOLIT GMBH & CO. KG
- Current Assignee Address: DE Isamaning
- Agency: Licata & Tyrell P.C.
- Main IPC: C08F2/18
- IPC: C08F2/18 ; C08F14/06 ; C08F114/06 ; C08F214/06

Abstract:
The present invention relates to a process for the production of polyvinyl chloride (PVC) having a median grain size of from 10 to 80 μm by suspension polymerization of vinyl chloride, the process comprising the following process steps: (a) introduction of water, initiator(s), optionally one or more further adjuvants, and some of the vinyl chloride into a container as initial charge and mixing of the constituents; (b) dispersion, and addition of one or more suspension auxiliaries with continued dispersion; (c) heating of the mixture; (d) addition of the remaining vinyl chloride; and (e) working-up of the product.
Public/Granted literature
- US20120095176A1 Process for the production of a polyvinyl-chloride (PVC) resin Public/Granted day:2012-04-19
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