Use of polymers for modifying the surface tension of secure particles

Verwendung von Polymeren zur Modifizierung der Oberflächenladung fester Teilchen

Utilisation de polymères destinés à la modification du chargement de surface de petits éléments solides

Abstract

Use of a polymer in the form of polymerized units comprising: (a) a monomer containing amide unit (I), (b) a monomer containing amide unit (II); (c) acrylic and/or methacrylic acid; and/or (d) further monomers comprising 3-6C ethylenically unsaturated carboxylic acids such as crotonic acid, maleic acid, maleic acid anhydride, fumaric acid, itaconic acid or their salts or half esters, or sulfonic acid compound (III) or their salts, preferably alkali metal- and ammonium salts for dispersing solid particles in liquid, preferably aqueous media, is claimed. Use of a polymer in the form of polymerized units comprising: (a) a monomer containing an amide unit of formula (H 2C=CR 1>-CO-NH-R 2>-N +>R 3>R 4>R 5>X ->) (I), (b) a monomer containing an amide unit of formula (H 2C=CR 6>-CO-NR 7>R 8>) (II); (c) acrylic and/or methacrylic acid; and/or (d) further monomers comprising 3-6C ethylenically unsaturated carboxylic acids such as crotonic acid, maleic acid, maleic acid anhydride, fumaric acid, itaconic acid or their salts or half esters, or sulfonic acid compound of formula (H 2C=CR-CO-NH-CR1aR2aR3a-SO 3H) (III) or their salts, preferably alkali metal- and ammonium salts for dispersing solid particles in liquid, preferably aqueous media, is claimed, where the polymer is water-soluble at 20[deg] C, and the amount of the component (c) is not more than 25 wt.%, R 1>H or 1-4C-alkyl; R 2>1-12C alkylene; R 3>-R 5>H, 1-18C-alkyl or phenyl residue; X ->anions from the group of halo, sulfate or alkyl sulfate for hydroxide, phosphate, acetate, formate or ammonium; R 6>R 1>; R 7>, R 8>H, 1-4C alkyl or 3-6C cycloalkyl; and R, R1a-R3a : H or 1-4C alkyl. Provided that R 7>and R 8>are not simultaneously represents a hydrogen atom. Independent claims are included for: (1) the solid particles, produced by contacting carrier particles in an aqueous medium with the polymer, where the polymer remains in the aqueous medium and after treatment the solid particles are separated, dried or left the particles in the medium; and (2) a method for galvanic or autocatalytic metal deposition on metal surfaces, preferably for nickel plating of metal surfaces, comprising adding aqueous nickel solution containing at least one nickel salt, organic acid and inorganic phosphorus compound to an aqueous dispersion of boron nitride particles, and contacting the solution with the metallic surface until dispersion layer from metal and boron nitride particles are separated.
Die vorliegende technische Lehre ist gerichtet auf die Verwendung von bei 20° C wasserlöslicher Polymere, die mind. 3 unterschiedliche Monomere a), b), c) und/oder d) enthalten, wobei gilt, dass die Monomeren a) und b) zwingend im molaren Verhältnis von 1 : 1 bis 1 : 10 enthalten sein müssen und zusätzlich Monomere c) und/oder d) enthalten sind, wobei als Monomere a) MAPTAC, als monomeres b) NIPAM, als monomeres c) Acrylsäure oder Methacrylsäure und als monomeres b) AMPS ausgewählt sind, zur Umladung der Oberflächenladung fester Teilchen, gemessen über das Zeta-Potential einer wässrigen Dispersion der Teilchen.

Claims

Description

Topics

Download Full PDF Version (Non-Commercial Use)

Patent Citations (13)

    Publication numberPublication dateAssigneeTitle
    EP-0333473-A2September 20, 1989Mitsui-Cyanamid, Ltd.Verfahren zum Tunneln
    EP-1767554-A1March 28, 2007Cognis IP Management GmbHAmpholytic polymer and its use
    FR-2774994-A1August 20, 1999Rhodia Chimie SaParticules composites comprenant un coeur a base d'un polymere organique contenant une matiere active et un revetement externe a base d'au moins un oxyde et/ou un hydroxyde, leur procede de preparation et leurs utilisations
    US-145517-ADecember 16, 1873Improvement in agricultural boilers
    US-4098654-AJuly 04, 1978Akzo N.V.Codeposition of a metal and fluorocarbon resin particles
    US-4302374-ANovember 24, 1981Akzo N.V.Stable dispersion of positively charged polyfluorocarbon resin particles
    US-5637635-AJune 10, 1997Phillips Petroleum CompanyWater dispersible thickeners comprising hydrophilic polymers coated with particulate fatty acids or the salts thereof
    WO-0152979-A1July 26, 2001Bio MerieuxProcede de preparation de particules colloïdales stables et fonctionnalisees et reactif particulaire obtenu
    WO-02096954-A1December 05, 2002AtofinaPreparation of hydrophilic polymer powders with low grain size distribution
    WO-03097721-A1November 27, 2003Skw Polymers GmbhVerwendung von wasserlöslichen polymeren als trocknungshilfmittel für die herstellung polymerer dispergiermittel
    WO-2004016701-A1February 26, 2004Perstorp Specialty Chemicals AbDispersion d'homopolymere ou de copolymere hydrophile
    WO-2005003186-A1January 13, 2005Celanese Emulsions Norden AbMethod for production of a waterborne copolymer dispersion
    WO-9948953-A1September 30, 1999Nippon Zeon Co., Ltd.Polymer dispersion composition

NO-Patent Citations (1)

    Title
    DATABASE WPI Week 199951, Derwent Publications Ltd., London, GB; AN 1999-601206, XP002489350

Cited By (1)

    Publication numberPublication dateAssigneeTitle
    WO-2016062879-A1April 28, 2016Basf SeSchleifelemente und verfahren zu deren herstellung von schleifelementen