DEINKING COMPOSITIONS AND METHODS OF USE

DEINKING COMPOSITIONS AND METHODS OF USE

Provided are surfactant compositions and their use for deinking various substrates, such as waste paper. The compositions comprise: (a) an alkyldiphenyloxide disulfonate compound of formula (I): wherein R1 at each occurrence is independently C6-C18 alkyl, M+ is H+ or a monovalent cation, p and q are...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: GAO MICHAEL PENG, MU JEFF JIANHAI, WANG WINKLE ZHI HUI
Format: Patent
Sprache:eng
Schlagworte:
ADHESIVES
APPARATUS THEREFOR
CHEMISTRY
DYES
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
PAINTS
PAPER-MAKING
POLISHES
PRODUCTION OF CELLULOSE
PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCESFROM CELLULOSE-CONTAINING MATERIALS
REGENERATION OF PULPING LIQUORS
TEXTILES
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Beschreibung
Zusammenfassung:Provided are surfactant compositions and their use for deinking various substrates, such as waste paper. The compositions comprise: (a) an alkyldiphenyloxide disulfonate compound of formula (I): wherein R1 at each occurrence is independently C6-C18 alkyl, M+ is H+ or a monovalent cation, p and q are independently 0 or 1 provided that at least one of p and q is 1; and (b) a nonionic surfactant of formula (II): wherein X and Y are independently ethylene oxide or propylene oxide, m and n are independently integers ranging from 0 to 50, provided that at least one of m and n is not 0, z is an integer ranging from 1 to 50, and R is RA or RA-C(=O)- wherein RA is C4-C22 alkyl or C4-C22 alkenyl.