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Overcome Cellulosics Drawbacks with Rheotech™ x800

Overcome Cellulosics Drawbacks with Rheotech™ x800. Agenda. What is currently known about HEC and HASE thickeners : strengths and weaknesses Case studies addressing HEC and HASE known weaknesses thanks to new HASE technologies. Stable viscosities for shelf life stability

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Overcome Cellulosics Drawbacks with Rheotech™ x800

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  1. Overcome Cellulosics Drawbacks with Rheotech™ x800

  2. Agenda • What is currently known about HEC and HASE thickeners : strengths and weaknesses • Case studies addressing HEC and HASE known weaknesses thanks to new HASE technologies

  3. Stable viscosities for shelf life stability Robustness vs binder technology Color compatibility, homogeneous appearance to tinted paints Open time to thin and thick paint coatings Powder form, preparation time more water amount and swelling time Poor leveling, addition of glycol or HEUR thickeners Spatter issues and limited brush drag/film build due to poor high shear building Limited choice of rheology profiles HEC thickeners use and performance Case 3 Case 1

  4. A broad spectrum of rheology profiles, from Newtonian to pseudo plastic Better productivity, liquid form, no preparation, incorporation at any stage, post-addition Remarkable application properties thanks to the control of high shear rate viscosities Better price/performance ratio: less use of thickener leading to cost savings Dependant on binder technology Significant viscosity evolution overnight and in time for 0-VOC paints Open time reduction of thin and thick paint coatings HASE thickeners use and performance Case 2 Case 3

  5. A broad spectrum of rheology profiles, from Newtonian to Pseudo plastic Case 1 Eggshell Semi-gloss Balanced 3800 2800 4800 Matt Gloss Newtonian Pseudoplastic Paints Rheology RHEOTECH™

  6. A broad spectrum of rheology profiles, from Newtonian to Pseudo plastic Case 1 • Solvent free matt paint, based on 15% VAE binder type TARGET :10 rpm Brookfield Viscosity 15 000 mPa.s One coat matt paint Viscosity ICI (P) RHEOTECH™ Standard matt paint 2 P 2800 HEC Economical matt paint 3800 1 P 4800 % dry dosage / total formulation 0.2 0.4 0.6

  7. 1- A broad spectrum of rheology profiles, from Newtonian to Pseudo plastic Case 1 Newtonian Rheotech™ 2800 Pseudo plastic Rheotech™ 4800 Balanced & robust Rheotech™ 3800 film build fair excellent leveling poor good one coat matt paint semi gloss paint economical matt paint standard matt paint

  8. Dependency of HASE on binder technology Case 2 • Aim: to maintain rheological balance while choosing another latex chemistry and/or changing its amount in a Matt Paint Formulation Low Shear Viscosity  14 000 mPa.s (Brookfield at 10 rpm) Medium Shear Viscosity  120 KU High Shear Viscosity  1.1 P (ICI viscosity) • Three different latexes Two dosages Styrene Acrylic 1 5 % & 15 % of latex Styrene Acrylic 2 5 % & 15 % of latex Ethylene Vinyl Acetate 15 % of latex • Results • Difference between the obtained and targeted values is calculated in %. • Target is considered as achieved each time the difference is less than plus or minus 30%.

  9. C/P (mPa.s) C/P (mPa.s) C/P (mPa.s) Stormer (KU) Stormer (KU) Stormer (KU) Brookfield 10 rpm (mPa.s) Brookfield 10 rpm (mPa.s) Brookfield 10 rpm (mPa.s) Dependency of HASE on binder technology Case 2 • Matt dispersion paint:15% of VAE binder, 0.3% of thickener (dry) Rheotech™ 3800 Rheotech™ 3800 Rheotech™ 3800 HASE 1 HASE 1 HASE 1 HASE 2 HASE 2 HASE 2 HASE 3 HASE 3 HASE 3 HASE 4 HASE 4 HASE 4 HASE 5 HASE 5 HASE 5 60 60 60 30 30 30 % % % 0 0 0 -30 -30 -30

  10. C/P (mPa.s) Stormer (KU) Brookfield 10 rpm (mPa.s) Dependency of HASE on binder technology Case 2 • Matt dispersion paint: 5% of styrene acrylic binder, 0.3% of thickener (dry) Rheotech™ 3800 HASE 1 HASE 2 HASE 3 HASE 4 HASE 5 60 30 % 0 -30

  11. Dependency of HASE on binder technology Case 2 • Matt dispersion paint: compliance between tested thickeners compliance/5 5 • The HASE technology deployed across Rheotech™ range allows: • less binder dependency like HEC thickeners • associative character more robust vs current HASE • more flexibility for production processes 4 3 2 1 0 Rheotech™ 3800 HASE 1 HASE 2 HASE 3 HASE 4 HASE 5

  12. HASE performance ratio and application propertiesNew outlook for open time Case 3 • Low emission high PVC matt paint PVC: 84%, SC: 58.7%

  13. HASE performance ratio and application propertiesNew outlook for open time Case 3 • Low emission high PVC matt paint PVC: 84%, SC: 58.7% Storage stability at room temperature and at 50°C

  14. HASE performance ratio and application propertiesNew outlook for open time Case 3 • Low emission high PVC matt paint PVC: 84%, SC: 58.7% Storage stability: Freeze-thaw stability

  15. Medium Mw HEC HASE performance ratio and application propertiesNew outlook for open time Case 3 • Low emission high PVC matt paint PVC: 84%, SC: 58.7% Application Properties: Sag evaluation (ASTM D4400) Rheotech™ 2800 Experimental HASE thickener No sag until 16 mils No sag until 24 mils No sag until 24 mils

  16. Medium Mw HEC Rheotech™ 2800 HASE performance ratio and application propertiesNew outlook for open time Case 3 • Low emission high PVC matt paint PVC: 84%, SC: 58.7% Application Properties: leveling evaluation (ASTM : D4062) Experimental HASE thickener Leveling = 4 Leveling = 5 Leveling = 7

  17. HASE performance ratio and application propertiesNew outlook for open time Case 3 • Low emission high PVC matt paint PVC: 84%, SC: 58.7% Open Time

  18. The review of the valuable advantages of HEC thickeners shows that • Robustness / binder • Storage stability • Open time are totally matched by Rheotech™ technology Rheotech™ family offers as well the added value of HASE thickeners • Efficiency • Versatility • Improved coating properties

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