Invention Grant
- Patent Title: Method for producing polyvinylacetals
- Patent Title (中): 生产聚乙烯缩醛的方法
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Application No.: US10513691Application Date: 2003-09-04
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Publication No.: US07351765B2Publication Date: 2008-04-01
- Inventor: Kurt Stark , Peter Tschirner , Karl-Heinz Eichel , Georg Friedl , Franz Eichberger
- Applicant: Kurt Stark , Peter Tschirner , Karl-Heinz Eichel , Georg Friedl , Franz Eichberger
- Applicant Address: DE Burghausen
- Assignee: Wacker Polymer Systems GmbH & Co. KG
- Current Assignee: Wacker Polymer Systems GmbH & Co. KG
- Current Assignee Address: DE Burghausen
- Agency: Brooks Kushman P.C.
- Priority: DE10242417 20020912
- International Application: PCT/EP03/09821 WO 20030904
- International Announcement: WO2004/026917 WO 20040401
- Main IPC: C08F8/00
- IPC: C08F8/00
Abstract:
Polyvinyl acetals are obtained in a cost-effective and environmentally advantageous manner by employing as at least a portion of the aqueous acetalization medium, the mother liquor from a previous acetalization reaction.
Public/Granted literature
- US20050171280A1 Method for producing polyvinylacetals Public/Granted day:2005-08-04
Information query
