Invention Grant
- Patent Title: Process for preparing polyalkylene ether-modified polysiloxanes and use thereof
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Application No.: US15768590Application Date: 2016-11-02
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Publication No.: US10752736B2Publication Date: 2020-08-25
- Inventor: Lothar Engelbrecht , Wolfgang Peter , Andreas Gernandt , Clemens Auschra , Ralf Knischka , Reiner Kranwetvogel
- Applicant: BASF SE
- Applicant Address: DE Ludwigshafen am Rhein
- Assignee: BASF SE
- Current Assignee: BASF SE
- Current Assignee Address: DE Ludwigshafen am Rhein
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@7b41536
- International Application: PCT/EP2016/076340 WO 20161102
- International Announcement: WO2017/076856 WO 20170511
- Main IPC: C08G77/18
- IPC: C08G77/18 ; C08G77/08 ; C08G77/38 ; C08G77/14 ; C09D183/04
Abstract:
The invention relates to a process for preparing oligo- or polyalkylene ether-modified polysiloxanes by transesterification of alkoxy-functionalized polysiloxanes with OH-terminated oligo- or polyalkylene ethers in the presence of an alkanesulfonic acid as catalyst. Oligo- or polyalkylene ether-modified polydimethylsiloxanes obtainable through this process are suitable as defoamers, as wetting agents, and as additives in coating material formulations.
Public/Granted literature
- US20180298149A1 PROCESS FOR PREPARING POLYALKYLENE ETHER-MODIFIED POLYSILOXANES AND USE THEREOF Public/Granted day:2018-10-18
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