• • • • Head Office at Wollaston, Northamptonshire Established in 1921. Totally independent company with no external shareholders employing 620 people world wide. Establish & maintain long term partnerships with customers & suppliers. Balance business needs with social, charitable & environmental obligations for sustainability. Scott Bader – Production/R&D Locations England Wollaston France Amiens Croatia Zagreb South Africa Hammarsdale 620 employees worldwide USA Stow, Ohio Asia Pacific Shanghai, China United Arab Emirates Dubaï Scott Bader Thickener Technologies www.scottbader.com Scott Bader Thickener Technologies Thickeners for water based systems Texipol® - Inverse Emulsion Texicryl® - ASE/HASE technology www.scottbader.com Scott Bader Thickener Technologies Texipol® Water soluble monomers are polymerised in oil continuous phase. Texipols are supplied as a free flowing liquid. Texipols invert when added to water to allow the dispersed polymer to hydrate and swell. Texipols are pre-neutralised, they are already activated and will thicken an aqueous system simply by addition. Texipols give a degree of opacity to a formulation www.scottbader.com Scott Bader Thickener Technologies www.scottbader.com Scott Bader Thickener Technologies www.scottbader.com Scott Bader Thickener Technologies Start Point – Oven Cleaner Water 605 Sodium Hydroxide (32%) 310 Lanspec EMP-102 15 Diethylene glycol n-Butylether 10 Texipol TD8136 60 1000 Brookfield Viscosity, 5@20rpm pH www.scottbader.com 7000 mPa.s 14 Scott Bader Thickener Technologies Texicryl® • Acrylic dispersions • ASE / HASE technology • Supplied at 30% solids in water • Active in the alkali region, pH 7.5 – 13.0 www.scottbader.com Scott Bader Thickener Technologies Texicryl® Alkali Soluble Emulsion, Texicryl 13-308 General purpose thickening pH 7.5 - 12 Psuedoplastic rheology Hydrophobically modified Alkali Soluble Emulsion, Texicryl’s 13-313 / 13-317 Highly associative character pH 7.5 – 13.0 Can function as a secondary surfactant ASE/HASE thickeners give a clear gel once adjusted with a base www.scottbader.com Scott Bader Thickener Technologies www.scottbader.com Scott Bader Thickener Technologies Start Point – Abrasive Cleaner Water Primesurf CDE-G Calcium Carbonate (50um) Texicryl 13-313 / 13-317 NaOH (to pH 12) 670 20 300 10 0 1000 www.scottbader.com Scott Bader Thickener Technologies 1000 Abrasive Cleaner 100 Texicryl 13-313 Viscosity (Pas) Texicryl 13-317 10 1 0.1 0.01 www.scottbader.com 0.1 1 Shear rate 10 100 1000 Scott Bader Thickener Technologies New Developments - Hydrolysable Thickeners • Acrylic dispersion technology • Supplied at 40% NVC • Hydrolysed under basic conditions at ambient temperature • Effective pH range of 5 - 13 www.scottbader.com Scott Bader Thickener Technologies New Developments - Hydrolysable Thickeners Approx 1% solids Item 1 Water 214.4 2 Polymer (40%) 3 NaOH (32%) 7.6 4 Water 750 28 1000 www.scottbader.com Scott Bader Thickener Technologies New Developments - Hydrolysable Thickeners Viscosity mPas 120000 100000 80000 60000 40000 20000 0 4 www.scottbader.com 5 6 pH 7 8 9 10