Invention Grant
- Patent Title: Use of hyperbranched polyesters and/or polyester amides for separating oil-in-water emulsions
- Patent Title (中): 使用超支化聚酯和/或聚酯酰胺分离水包油乳液
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Application No.: US13684965Application Date: 2012-11-26
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Publication No.: US09303215B2Publication Date: 2016-04-05
- Inventor: Bernd Bruchmann , Andreas Eichhorn , Marcus Guzmann , Wolfgang Gaschler
- Applicant: BASF SE
- Applicant Address: DE
- Assignee: BASF SE
- Current Assignee: BASF SE
- Current Assignee Address: DE
- Agency: Drinker Biddle & Reath LLP
- Priority: EP07118028 20071008
- Main IPC: C08G63/02
- IPC: C08G63/02 ; C10G33/04 ; B01D17/04 ; B01D17/00 ; C08G63/668 ; C08G69/44 ; C08G83/00 ; C08G63/688
Abstract:
The use of a nondendrimeric hyperbranched polyester and/or a polyesteramide which comprise alkenyl-substituted succinic acid units as a demulsifier for splitting oil-water emulsions. The succinic acid is substituted by at least one alkenyl group containing from 16 to 20 carbon atoms. Particular emulsions suitable for splitting are crude oil emulsions. Also, a nondendrimeric hyperbranched polyester or a polyesteramide which comprises alkenyl-substituted succinic acid units, the alkenyl group having from 16 to 20 carbon atoms. In addition to the alkenyl-substituted succinic acid units, the nondendrimeric hyperbranched polyester contains, as further units, at least trifunctional alcohols having been alkoxylated with an average of from 3 to 12 ethylene oxide units.
Public/Granted literature
- US20130087485A1 Use of Hyperbranched Polyesters and/or Polyester Amides for Separating Oil-In-Water Emulsions Public/Granted day:2013-04-11
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