EMULSON AG/TP1

         THE AQUEOUS
CONCENTRATE OF ANIONIC
    ACRYLIC COMPOUND
Chemical Description
  Aqueous dispersion (colloidal solution) of
            anionic acrylic polymer
 Copolymer of alky...
Structure of AMPS

 AMPS: Acrylamido-
   methyl-propane
     sulfonate



                 H
                 N
         ...
Structure of Alkylmethacrylate

                       Alkyl
                 2-methyl-propenoic
                        ...
Random Distribution of Three Linkages
       Monomer A - Monomer A
       Monomer A - Monomer B
       Monomer B - Mono...
Structures
            O            O
                   What’s the right
       Me          OR Me       OR
             ...
Specification (properties in
        certificate of analysis)

  Milky dispersion

 pH (indiluted form):
           5
 ...
Functions to be recognised
 Dispersant to dispers solid particles or liquid
          droplets in continuous phase
     ...
Like Polyelectrolyte
 Hydrophilic monomer
  (AMPS) consists of sulfonic
  group

 High molar ratio of AMPS
  provides hi...
Dispersion – Colloidal Solution
    Sulfonic groups (in AMPS monomers) improve
            solubility of copolymer in wat...
Application
 Product can be used in aqueous dispersions (mainly
aqueous suspension concentrate SC) or in preparation of
 ...
Application and Guides for SC


 Usually 2-5 % Emulson AG/TP1 gives desired
results (regarding suspension stability, rheo...
SC Formulations of following Active
Ingredients were examined obtaining
          suitable results
          Inorganic sol...
Advantages


  High tolerance to extreme conditions of ionic
              strength and temperature
 Ideal for solvent-f...
Theta Conditions


   Using NaCl (4M), CaCl2 (1M)and Na2SO4 (2M)
     the salt tolerance is excellent: no flucculation,
 ...
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Emulson AG/TP1: Acrylic Polymer Dispersant from Lamberti

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Dispersant to disperse solid particles or liquid
droplets in continuous phase.
 Multi ancor points leads to strong (irreversible) adsorption
 Building of steric barrier and behaviour of
polyelectrolyte (electrostatic repulsion)
 Reducing viscosity
 Compatibility agent
 Milling aids: easy grinding
Product can be used in aqueous dispersions (mainly aqueous suspension concentrate SC) or in preparation of slurry to be spray dried
 as dispersant or co-dispersant (in combination with other polymer and/or traditional surfactant)
 as milling aid
High tolerance to extreme conditions of ionic
strength and temperature.

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Emulson AG/TP1: Acrylic Polymer Dispersant from Lamberti

  1. 1. EMULSON AG/TP1 THE AQUEOUS CONCENTRATE OF ANIONIC ACRYLIC COMPOUND
  2. 2. Chemical Description  Aqueous dispersion (colloidal solution) of anionic acrylic polymer  Copolymer of alkylmethacrylate and AMPS  Low molar content of hydrophobic monomer (alkylmethacrylate)  Random distribution of structure units  Similar to comb-like (grafted) polymer
  3. 3. Structure of AMPS  AMPS: Acrylamido- methyl-propane sulfonate H N SO3H O
  4. 4. Structure of Alkylmethacrylate  Alkyl 2-methyl-propenoic ester O R O
  5. 5. Random Distribution of Three Linkages  Monomer A - Monomer A  Monomer A - Monomer B  Monomer B - Monomer B
  6. 6. Structures O O  What’s the right Me OR Me OR structure?? NHR NHR O O  A polymer with idrophobic and idrophilic groups
  7. 7. Specification (properties in certificate of analysis)  Milky dispersion  pH (indiluted form): 5  Low viscous liquid: <1000 mPa.s at 20 °C using Brookfield
  8. 8. Functions to be recognised  Dispersant to dispers solid particles or liquid droplets in continuous phase  Multi ancor points leads to strong (irreversible) adsorption  Building of steric barrier and behaviour of polyelectrolyte (electrostatic repulsion)  Reducing viscosity  Compatibility agent  Milling aids: easy grinding
  9. 9. Like Polyelectrolyte  Hydrophilic monomer (AMPS) consists of sulfonic group  High molar ratio of AMPS provides high charge density  Sulfonic groups are neutralised (sodium salt); full dissociation particularly in pH >7
  10. 10. Dispersion – Colloidal Solution  Sulfonic groups (in AMPS monomers) improve solubility of copolymer in water,  Alkyl chains (in methacrylate monomers) improve the adsorption and accumulation at polar/apolar interface  Due to relatively high molecular weight of copolymer , solubility characteristics of monomers and molar ratio the aqueous colloidal solution is being produced
  11. 11. Application  Product can be used in aqueous dispersions (mainly aqueous suspension concentrate SC) or in preparation of slurry to be spray dried  as dispersant or co-dispersant (in combination with other polymer and/or traditional surfactant)  as milling aid
  12. 12. Application and Guides for SC  Usually 2-5 % Emulson AG/TP1 gives desired results (regarding suspension stability, rheological characteristics)  Good compatibility with other anionic coformulants (phosphates, sulfonates)  Good compatibility with non-ionic alkoxylates (ethoxylates, EO/PO adducts)  Good compatibility with xanthan gum
  13. 13. SC Formulations of following Active Ingredients were examined obtaining suitable results Inorganic solid actives  Bordoeaux Mixture  Copper oxychloride  Sulfur Organic solid actives  Diuron  Fluometuron  Bendiocarb
  14. 14. Advantages  High tolerance to extreme conditions of ionic strength and temperature  Ideal for solvent-free aqueous system including SUSPENSIONS (slurries)  Usualy no wetting agent required
  15. 15. Theta Conditions  Using NaCl (4M), CaCl2 (1M)and Na2SO4 (2M) the salt tolerance is excellent: no flucculation, precipitation occur  Heating up to 70 °C no flucculation and noincrease in viscosity
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