B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 19/04 (2006.01) D21H 17/00 (2006.01) D21H 17/14 (2006.01) D21H 21/12 (2006.01)
Patent
CA 2074054
Antifoams for the paper industry are based on oil-in-water emulsions in which the oil phase accounts for from 5 to 50% by weight of the emulsion and contains (a) an alcohol of not less than 12 carbon atoms, fatty esters of alcohols of not less than 22 carbon atoms arid C1-C36-carboxylic acids, distillation residues which are obtainable in the preparation of alcohols having a relatively large number of carbon atoms by the oxo synthesis or by the Ziegler method and which may be alkoxylated, a mixture of the stated com- pounds and/or (b) a fatty ester of C12-C22-carboxylic acid with a monohydric to trihydric C1-C18-alcohol and, if required, (c) a hydrocarbon having a boiling point above 200°C or a fatty acid of 12 to 22 carbon atoms, in combination with (d) from 1 to 80% by weight of polyglyceryl esters which can be prepared by not less than 20% esterification of a polyglycerol mixture which contains, as essential components, di-, tri- and tetraglycerol and, if required, polyglycerols having higher degrees of condensation with saturated or un- saturated C12-C36-fatty acids.
Dralle Gabriele
Hohmann Andreas
Oppenlaender Knut
Schuhmacher Rudolf
Wegner Brigitte
Basf Aktiengesellschaft
Borden Ladner Gervais Llp
Dralle Gabriele
Hohmann Andreas
Oppenlaender Knut
LandOfFree
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