Polyether solution in water

Transcription

1 DSX 3220 Use Composition DSX 3220 is a solvent-free, VOC-free, low odor associative thickener specifically designed to give Newtonian rheology profile and excellent balance of performance properties to premium flat, eggshell, semi-gloss and gloss coatings. DSX 3220 is excellent for high shear viscosity build for one-coat coverage while enhancing low shear performance for superior sag resistance. DSX 3220 imparts excellent flow and leveling due it s comb-polymer structure and belongs to a family of polyether thickeners shown to have excellent exterior durability. Polyether solution in water Specification Appearance Clear to hazy liquid (8000) Solids % (8766) Brookfield viscosity, mpa.s (LVT, sp-3, 12 rpm, 25 ºC) Specific gravity,g/ml (ISO , 25 C) Properties Highly efficient in ICI viscosity development Superior sag resistance Excellent flow and leveling Excellent scrub resistance Excellent shelf life for consistent efficiency in performance (non-settling solution) Zero-VOC Application In paint formulations, typical use levels can vary from 10 grams to 40 grams per liter (10 lbs to 40 lbs per 100 gallons) of paint, depending on the system being thickened. Combinations of DSX 3220 with other low/mid shear DSX rheology modifiers can be used to attain the desired balance of high/low shear viscosities.

2 Formulation: DSX 3220 is usually added as the final ingredient in a formulation. However, in cases where there is limited agitation at this stage, addition of % of the total quantity of DSX 3220, just after the grind stage, can aid incorporation of the thickener. Semi Gloss Topcoat (50 g/l VOC) Ingredient Weight (pounds) Volume (gallons) Supplier Water Ethylene Glycol Natrosol 250 HBR Aqualon Proxel GXL Arch Hydropalat Cognis Triton CF Dow Foamstar A Cognis Ti Pure R DuPont OmyaCarb Omya High Speed Disperse 15 minutes, 6 Hegman Grind Then Add the Following Water Loxanol EFC Cognis Rhoplex SG Rohm & Haas Water Ropaque Ultra Rohm & Haas Triton X Dow Foamstar A Cognis Aqua Ammonia DSX Cognis DSX Cognis Totals NVW 49.0% NVV 37.0% VOC 45 g/l NVV 27.6% (Includes Opaque Polymer) DSX_r_3220_E 2

3 Test Results: DSX 3220 is a very efficient ICI builder. The following comparative study demonstrates similar ICI viscosity profile against a HEUR ICI builder. 2.5 DSX3220 HEUR-ICI ICI Viscosity % 1.5% 3.0% 4.5% 6.0% Rheology Modifier Level DSX 3220 use level has minimal impact on paint KU s and shows 5-8 units higher KU s response than competitive HEUR-ICI. This type of rheology behavior can help achieve desired rheology profile with minimal reformulation effort. DSX3220 HEUR-ICI KU viscosity % 1.5% 3.0% 4.5% 6.0% Rheology Modifer level Improved low shear viscosity response can help improve sag resistance of paints DSX_r_3220_E 3

4 DSX 3220 shows better sag resistance and scrub resistance when compared against a competitive HEUR-ICI. It also shows excellent flow behavior. Sag Resistance (Mils) DSX 3515 / HEUR-MID-0 /HEUR- ICI Scrub Cycles (Cut through) DSX 3515 / DSX HEUR-MID-0 / HEUR-ICI Flow & Leveling DSX 3515 / DSX 3220 HEUR-MID-0 / HEUR-ICI DSX_r_3220_E 4

5 Regulatory Status Miscellaneous Packaging, Storage and Handling TSCA, DSL, IECSC, EINECS The properties of the product are not affected by low temperatures. DSX 3220 is packaged in 55 gallon (200 liter) tight head, polyethylene/steel composite drums. Storage in a cool, dry place away from direct heat is recommended. Additional handling information is contained in a material safety data sheet which is available on request. Freight Classification DSX 3220 is classified as: Synthetic Resins, NOIBN (Resin and Resin Compounds). Revision-No Effective June 13, 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 DSX_r_3220_E 5