PRODUCTION OF LOW-SALT PREPARATION OF CONDENSATE

PROBLEM TO BE SOLVED: To provide an improved peparation of a sulfonated arom. compd.- aldehyde condensate useful as a tanning agent, a dispersant, and a liquefying agent. SOLUTION: This process for producing a low-salt preparation of a condensate based on a sulfonated arom. compd., an aldehyde and/o...

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Bibliographic Details
Main Authors TRAEUBEL HARRO DR, ZARGES WOLFGANG DR, THOLEMA EDZARD DR
Format Patent
LanguageEnglish
Published 21.04.1998
Edition6
Subjects
ADHESIVES
APPARATUS THEREFOR
CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING,IMPREGNATING, FINISHING
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS FOR TANNING
DYES
HIDES
LEATHER
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
ORGANIC MACROMOLECULAR COMPOUNDS
PAINTS
PELTS
POLISHES
SKINS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Summary:PROBLEM TO BE SOLVED: To provide an improved peparation of a sulfonated arom. compd.- aldehyde condensate useful as a tanning agent, a dispersant, and a liquefying agent. SOLUTION: This process for producing a low-salt preparation of a condensate based on a sulfonated arom. compd., an aldehyde and/or a ketone, and if necessary at least one compd. selected from among a nonsulfonated arom. compd., urea, and a urea deriv. comprises separating the whole or part of an inorg. acid present after the condensation, if necessary in the form of a salt after neutralization, from the condensate until the inorg. salt content is reduced below 10wt.% of the preparation.
Bibliography:Application Number: JP19970179154