Thickener, Rheology Modifier ADEKA NOL UH-450VF

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1 <ADDRESS> ADEKA CORPORATION , HIGASHI OGU, ARAKAWA-KU TOKYO JAPAN SALES TEL FAX R&D TEL FAX Date prepared: Sep /20/ 2005 Date revised: Mar /22/ 2007 Thickener, Rheology Modifier ADEKA NOL The use of a thickener or viscosity controller has become an important factor in the formulation of synthetic emulsion paints and synthetic emulsion adhesives. Products of the ADEKANOL UH series from ADEKA are widely used as key thickeners/viscosity controllers and, in such use, impart Newtonian viscosity properties to synthetic paints and/or adhesives. Our thickener ADEKANOL has already found long time use in the Japanese market showing an excellent thickening effect, producing Newtonian shear viscosity as well as good pigment compatibility. Consequently ADEKANOL finds use in many different applications. Besides ADEKANOL, ADEKA has developed as VOC free type of. In no *VOC and SVOC raw material is used. *VOC: Volatile Organic Compound (b.p.= o C o C) SVOC: Semi Volatile Organic Compound (b.p.= o C o C) 1. Physical properties Appearance viscous liquid Active content 30 % Ionic property non ionic Viscosity (25 o C) mpa.s 2. Characteristics ADEKANOL has excellent thickening effect ADEKA NOL UH series are nonionic, no ph change of the original formulation Compatible with HEC and alkaline-swelling type thickeners Good pigment compatibility Excellent water resistance Viscosity of synthetic paints/adhesives follows leveling properties. (1/6)

2 Product Name : ADEKA NOL 3. Addition rate The suggested addition level is between 0.1 to 1.0% ADEKANOL (solution) based on weight of total formula. 4. Evaluation of synthetic emulsion 4.1 Viscosity increase Testing method Add adequate amount of ADEKA NOL and stir well. Leave the emulsion to stand overnight at 25 o C. The viscosity is measured by a Brookfield viscometer (B8H type, 50, 20, 10, 5 rpm). Viscosity data is plotted in Log-Log graph and the shear viscosity properties are calculated from the shape of plot lines as TI (thixotropic index). Test formulation Synthetic emulsion: 100 emulsion A for semi-gloss paint Defoamer (ADEKA NATE B-940): 0.2 Thickener: % (as solution) Test Thickeners: ADEKA NOL ADEKA NOL ADEKA NOL R-82 (obtained from the market) Results Emulsion A for semi-gloss paint Viscosity (mpa s/25 ) R Dosage (wt%) TI Solution dosage (wt%) R Fig1. Viscosity increase and TI (evaluation in resin emulsion) (2/6)

3 Product Name : ADEKA NOL 1E+03 Viscosity(mPa s) 1E+02 1E+01 1E+00 1E-01 1E-02 1E-03 1E-02 1E-01 1E+00 1E+01 1E+02 1E+03 1E+04 Shear Rate(1/S) Fig 2. Rheological profile (evaluation in resin emulsion) ADEKANOL shows excellent thickening effect and leveling property. (3/6)

4 Product Name : ADEKA NOL 5. Evaluation in paint 5.1 Viscosity increase 5.1.1Testing method ADEKA s own formulated white paint is used and the same evaluation as above is made. White paint formulation (wt): Materials Ratio Type, Supplier Water 9.99 Sodium tripolyphosphate 0.5 ADEKA COL W Dispersing agent (ADEKA) TiO TCR-10 (Tochem) ADEKA NATE B Defoamer (ADEKA) Total Pigment paste Emulsion for semi gloss paint Texanol 2.60 CS-12 Chisso petro chem Propylene glycol 3.80 ADEKA Ammonia solution (28 %) 0.10 ADEKANATE B Defoaming agent Total 100 Test formulation (% wt): Thickener: Test thickeners: 100 % white semi gloss paint appropriate amount (0-1.0 % as solution) ADEKA NOL ADEKA NOL ADEKA NOL R-82 (obtained from the market) (4/6)

5 Product Name : ADEKA NOL Results Semi-gloss white paint Viscosity (mpa s/25 ) R Dosage (wt%) TI Solution dosage (wt%) R Fig3. Viscosity increase and TI (evaluation in white paint) 1E+02 Viscosity(mPa s) 1E+01 1E+00 1E-01 1E-02 1E-03 1E-02 1E-01 1E+00 1E+01 1E+02 1E+03 1E+04 Shear Rate(1/S) Fig 4: Rheological profile (evaluation in white paint) ADEKANOL shows leveling flow similar to and. (5/6)

6 Product Name : ADEKA NOL 5.2 Pigment compatibility Testing method The thickener is stirred into the white paint and then a colored pigment paste is added. After one night at 25 o C the paint is applied on an art-paper and one corner is rubbed with the fingers. After drying, the color difference is compared between the rubbed area and the un rubbed area. Test pigment and formulation: Pigment FLTR manufactured by Dainichi Seika (Black paste) Paint original 100 Thickener appropriate amount to get 3,000 5,000 mpa s viscosity in the paint Pigment (black) 4 Test thickener ADEKA NOL ADEKA NOL ADEKA NOL UH-540 ADEKA NOL H-4 (typical HEC) Results 4 Semi-gloss white paint(carbon black) 3 Flat Rubbing ΔE H-4 UH-540 Fig 5. Influence on pigment dispersing ability Pigment compatibility of ADEKA NOL is good. (6/6)