USE OF CONDENSATION PRODUCTS OF THIOALKYLENE OXIDES OR POLYTHIOALKYLENE OXIDES WITH POLYALKYLENE OXIDES TO BREAK WATER-IN-OIL EMULSIONS

    公开(公告)号:DE3662699D1

    公开(公告)日:1989-05-11

    申请号:DE3662699

    申请日:1986-02-03

    Applicant: BAYER AG

    Abstract: New sulphur-containing polyethers based on optionally polymeric thioalkylene oxides and polyalkylene oxides, method for their preparation and their use as breakers for water-in-oil emulsions, in particular, as breakers for crude oil emulsions. The polyethers are of the formula (I) in which R1 and R2, independently of each other, represent hydrogen and/or a straight-chain or branched C1 to C20 alkyl group, R3 and R4, independently of each other and independently of adjacent groups, represent in each case hydrogen, a straight-chain or branched C1 to C20 alkyl group and/or for -A-O-B, where A denotes a straight-chain or branched C1 to C20 alkylene group and B denotes a straight-chain or branched C1 to C20 alkylene-OH group or a group with R1 and R2 as defined above, n represents an integer from 1 to 100 and m represents an integer from 10 to 2,500.

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