ANTIFOAMING AGENT COMPOSITION

PROBLEM TO BE SOLVED: To provided an antifoaming agent having an excellent antifoaming and foam inhibiting effect and stable viscosity in addition without increasing the viscosity even in a long term storage. SOLUTION: The antifoaming agent is prepared by dispersing a bisamide compound (A) and hydro...

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Bibliographic Details
Main Authors MURAKI HISATOMI, ANDO SETSUO, HAMASHIMA TAKAHARU, NAKAI TAKUYA
Format Patent
LanguageEnglish
Published 27.10.1998
Edition6
Subjects
ADHESIVES
ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES
APPARATUS THEREFOR
CANDLES
CHEMICAL PAINT OR INK REMOVERS
CHEMISTRY
COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS
CORRECTING FLUIDS
DETERGENT COMPOSITIONS
DETERGENTS
DYES
FATTY ACIDS THEREFROM
FILLING PASTES
INKS
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
PAINTS
PAPER-MAKING
PASTES OR SOLIDS FOR COLOURING OR PRINTING
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
POLISHES
PRODUCTION OF CELLULOSE
PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCESFROM CELLULOSE-CONTAINING MATERIALS
RECOVERY OF GLYCEROL
REGENERATION OF PULPING LIQUORS
RESIN SOAPS
SEPARATION
SOAP OR SOAP-MAKING
TEXTILES
TRANSPORTING
USE OF MATERIALS THEREFOR
USE OF SINGLE SUBSTANCES AS DETERGENTS
WOODSTAINS
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Summary:PROBLEM TO BE SOLVED: To provided an antifoaming agent having an excellent antifoaming and foam inhibiting effect and stable viscosity in addition without increasing the viscosity even in a long term storage. SOLUTION: The antifoaming agent is prepared by dispersing a bisamide compound (A) and hydrophobic silica and/or silicone oil (B) in hydrocarbon oil, the bisamide compound is expressed by a general formula, R CONH-(CH2 )n - NHCOR (in the formula, each of R and R expresses a 12-20C alkyl group, both can be the same or different from each other and (n) expresses integers of 1-6) and is produced by adding the bisamide compound and a partially esterified compound of a copolymer made of α-olefin and maleic anhydride as a main component in the weight ratio of 1.5:1 to 50:1 to the hydrocarbon oil, after dissolving at a temp. above the m.p. of each of the components, cooling to deposit an α-type bisamide compound and then high-pressure-dispersing the bisamide compound with a pressure type homogenizer.
Bibliography:Application Number: JP19970094083