Foam inhibiting composition

Foam inhibiting composition

Compositions are provided containing synergistic amounts of both a long chain hydrocarbon substituted amide which is water insoluble and a water insoluble saponified copolymer of ethylene and polyvinyl acetate, homogeneously dispersed in a water insoluble hydrocarbon oil in which said amide and said...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: MICHALSKI, RAYMOND J, COCHRANE, CHAPPELLE C
Format: Patent
Sprache:eng
Schlagworte:
APPARATUS THEREFOR
PAPER-MAKING
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
PRODUCTION OF CELLULOSE
PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCESFROM CELLULOSE-CONTAINING MATERIALS
REGENERATION OF PULPING LIQUORS
SEPARATION
TEXTILES
TRANSPORTING
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Beschreibung
Zusammenfassung:Compositions are provided containing synergistic amounts of both a long chain hydrocarbon substituted amide which is water insoluble and a water insoluble saponified copolymer of ethylene and polyvinyl acetate, homogeneously dispersed in a water insoluble hydrocarbon oil in which said amide and said copolymer are insoluble, preferably together with a surface active spreading agent, which are useful in controlling foams in aqueous systems having a pH of 1 to 7.5, especially sulfite wood pulp liquor.