DISPONIL FES 32 P is an emulsifier for the manufacture of polymer dispersions, in particular for. Fatty alcohol ether sulphate, sodium salt

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1 DISPONIL FES 32 P Use DISPONIL FES 32 P is an emulsifier for the manufacture of polymer dispersions, in particular for acrylate homo and copolymers, vinyl acetate-acrylate copolymers, styrene-acrylate copolymers. DISPONIL FES 32 P is suitable for the manufacture of extremely finely dispersed polymer dispersions. Composition Fatty alcohol ether sulphate, sodium salt Specification Fatty alcohol ether sulphate, sodium salt (QC ) Sodium sulphate <0.5 % (DGF H-III, 8A(92)) Sodium chloride <0.1 (DGF H-III 9(92) ph-value 20 C (QP ) (10% in aqueous solution) Pour Point C (DIN ISO 3016(94)) Color Hazen/Apha <100 (ISO ) Additional data Appearance colorless to slightly yellowish liquid Ionic character anionic Density 20 C 1.05 g/cm³ (DGF C-IV 2 (52))

2 Properties Surface tension (mn/m) according to Lecomte du Noüy, at 25 C and different application concentrations. 0,025 g AS/l = 44,74 mn/m 0,054 g AS/l = 35,90 mn/m 0,089 g AS/l = 31,06 mn/m 0,129 g AS/l = 27,10 mn/m 0,174 g AS/l = 24,28 mn/m 0,226 g AS/l = 23,00 mn/m 0,342 g AS/l = 24,60 mn/m 0,405 g AS/l = 25,30 mn/m 0,469 g AS/l = 26,30 mn/m 0,532 g AS/l = 27,00 mn/m C M C = 0, 2 2 g A S / l 20 0,010 0,100 1,000 g A S / l DISPONIL_r_FES_32_P_E 2

3 Application I. Polymerization of styrene/butyl acrylate Reactor p. b. w. Water, demineralised 78.5 p. b. w. DISPONIL FES 32 P 3.0 p. b. w. Potassium peroxodisulphate Dosage p. b. w. Sodium disulphite, 2 % solution Dosage p. b. w. Styrene p. b. w. n-butyl acrylate 5.0 p. b. w. Methacrylic acid 5.0 p. b. w. Ammonia, 25 % solution p. b. w. Polymer dispersion Technical data of the polymer dispersion Coagulum after polymerization 0 % Appearance extremely fine, slightly viscous polymer dispersion MFT approx. 20 C ph-value 7-8 Freezing/thawing stability good (-5 C) Solid contents approx. 48 % Storage stability at least 6 months Abrasion resistance of the film, > 5000 cycles (DIN 53778) DISPONIL_r_FES_32_P_E 3

4 II. Polymerization of ethyl acrylate-methyl methacrylate Reactor p. b. w. Water, demineralised 76.0 p. b. w. DISPONIL FES 32 P 3.0 p. b. w. Potassium peroxodisulphate Dosage p. b. w. Sodium disulphite, 2 % solution Dosage p. b. w. Ethyl acrylate p. b. w. Methyl methacrylate 5.0 p. b. w. Methacrylic acid 5.0 p. b. w. Ammonia, 25 % solution p. b. w. Polymer dispersion Technical data of the polymer dispersion Coagulate after polymerization 0 % Appearance extremely fine, slightly viscous polymer dispersion Particle size micron MFT < 0 C ph-value 8-9 Freezing/thawing stability good (-5 C) Solid contents % Storage stability at least 6 months Abrasion resistance of the film, > 5000 cycles (DIN 53778) DISPONIL_r_FES_32_P_E 4

5 III. Styrene/n-butyl acrylate/2-ethyl hexyl acrylate-copolymer Reactor p. b. w. Water, demineralised 66.6 p. b. w. DISPONIL FES 32 P 1.0 p. b. w. Ammonium perodoxisulphate Dosage p. b. w. Ammonium peroxodisulphate, 2 % solution Dosage p. b. w. Styrene p. b. w. n-butyl acrylate p. b.w. 2-ethyl hexyl acrylate 20.0 p. b. w. Methacrylic acid 20.0 p. b. w. Ammonia, 25 % solution p. b. w. Polymer dispersion Technical data of the polymer dispersion Coagulate after polylmerization 0 % Appearance extremely fine, slightly viscous polymer dispersion Particle size 0.05 micron MFT 6-7 C ph-value 8-9 Solid contents approx. 42 % Storage stability at least 6 months Abrasion resistance of the film, > 5000 cycles (DIN 53778) Equipment Reaction vessel with two dosage devices and reflux condenser DISPONIL_r_FES_32_P_E 5

6 Process Fill the reaction vessel with demineralised water, DISPONIL FES 32 P and potassium peroxodisulphate, afterwards flush with nitrogen. Add approx % of the quantity of the monomer blend (dosage 2) as well as the 2 % sodium disulphite solution (dosage 1). Heat reaction vessel to C. After the exothermic heat has subsided, the monomer blend (dosage 2) and the 2% sodium disulphite solution are added at a rate by which the reaction temperature ranges between 70 and 75 C (dosage time 1-2 hours) Afterwards post-polymerize for approximately one hour at 75 to 80 C. Cooling of the polymer dispersion to < 40 C. In the cooling stage the ph-value of the dispersion is adjusted with ammonia (25 % solution) to approx. 8. By addition of non-ionics, such as, for example DISPONIL NP 10, DISPONIL NP 3070 or DISPONIL OP 4070, it is possible to poststabilize the polymer dispersion. Dosage Amount to be used quantity is dependent upon the type and amount of the initial monomers as well as upon the polymerization process and the desired properties of the polymer dispersion. In general, the amount added ranges between 0.5 and 5 % DISPONIL FES 32 P (100 % active substance), calculated on the monomers. DISPONIL FES 32 P is suitable as an anionic sole emulsifier. Incoporation frequently takes place, however, in combination with non-ionic coemulsifiers of the DISPONIL NP, DISPONIL OP, DISPONIL LS or DISPONIL TA, DISPONIL A types. Approvals BfR XIV Plastic dispersions BfR XXI Natural and synthetic rubber BfR XXXIV Vinylidene chloride mixed polymers DISPONIL FES 32 P is in compliance with the FDA 21 CFR , , , , and DISPONIL_r_FES_32_P_E 6

7 Furthermore, under Food Contact Notification Number 054 DISPONIL FES 32 P is allowed for use as an emulsifier in the production of acrylic and modified acrylic polymers and vinyl acetate copolymers applied as pigment binders in coatings for paper and paperboard, (max, 2.0 % w/w) in coatings for paper and paperboard complying with 21 CFR (contact aqueous and fatty foods), and as emulsifier 0.3 % (w/w) of styrene-butadiene copolymer coatings for paper and paperboard in contact with aqueous or fatty foods under 21 CFR Regulatory Status Miscellaneous TSCA, DSL, PICCS, AICS, ECL, ENCS/MITI, IECSC, EINECS Preservation with methylisothiazolinon/benzisothiazolinon Revision-No Effective April 15, 2008 Subject to appropriate storage under the usual storage and temperature conditions, our products are durable for at least 1 year. Suggestions of processing and using our products are given with best knowledge and information but without obligation. COGNIS does not accept any guarantee to the suitability of a product for the user's specific purpose. Furtheron the user himself assumes a liability to follow all legal regulations by using our products. The user can only pass on our sample to third parties with previous assent of COGNIS DISPONIL_r_FES_32_P_E 7