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Aquaflow™ nonionic synthetic associative thickeners are efficient thickeners for high-performance waterborne paints and coatings. These easy-to-handle liquids build rheology in paints and coatings through self-association and interaction with other ingredients. Aquaflow rheology modifiers are based on hydrophobically-modified polyacetal-polyether (HM …
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The invention relates to a powdered thickener preparation based on polyurethane, which can be incorporated particularly well into water-based paints and lacquers and into other aqueous systems, and to their use as rheological additives for thickening preferably aqueous systems.
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May 06, 2009· EP 0 725 097 B discloses polyurethane thickeners for whose preparation polyethers, produced through the alkoxylation of alcohols or alkylphenols, are reacted with polyisocyanates, where the ratio of NCO to OH equivalents is in the range from 0.9:1 to 1.2:1. ... Catalysts usually used in polyurethane chemistry are organic amines, in …
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Mainly used in PU leather producing, as thickeners, for fibre reinforcement, as an filler. GGK-PU THICKENER can achieve leather-like properties, with an even, smooth surface while improving manufacturing efficiency and lowering production costs. POLYURATHANE SYNTHETIC LEATHER STRUCTURE. FEATURE( ADD GGK-PU ) 1. PU SYNTHETIC …
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EP 0 725 097 B discloses polyurethane thickeners for whose preparation polyethers, produced through the alkoxylation of alcohols or alkylphenols, are reacted with polyisocyanates, where the ratio of NCO to OH equivalents is in the range from 0.9:1 to 1.2:1. ... Catalysts usually used in polyurethane chemistry are organic amines, in …
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1. 1-15. (canceled) 16. A water-dispersible polyurethane (PU), prepared in the presence of at least one zinc carboxylate or at least one titanium alcoholate or mixtures thereof, with an essentially linear backbone composed of alternating hydrophilic and hydrophobic sections, where a. the two terminal sections (T) are hydrophobic, b. each section T is directly …
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As a professional water based polyurethane thickener factory,we can support high quality water based polyurethane thickener. inquiry now. +86 . william@ahadht . ... best soft PU AH-1619 1619 is high solid polyurethane binder, designed for textile ink and coating applications. It is very soft with high elongation ...
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TAFIGEL PUR 61 is a so-called associative thickener, which builds up and stabilizes viscosity by forming a framework between thickener molecules, binder and pigments. Formulations with TAFIGEL PUR 61 exhibit maximum pseudoplasticity. Viscosity is increased primarily in the low shear rate range, but without generating an elastic …
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Associative polyurethane thickener. The thickening mechanism of associative polyurethane thickeners is completely different. Due to their hydrophobic-hydrophilic-hydrophobic structure they form aggregates in aqueous systems (micelles), whereby e.g. one thickener molecule can be part of two or more micelles linking them physically this …
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Viscosity shear ramp of a wood coating, both with and without pigment dispersion. TAFIGEL® PUR 64 is one of the newer grades shown to be less sensitive to the addition of surface-active materials. These newer associative thickeners meet indirect food contact requirements and are APEO-, VOC- and organotin-free.
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MÜNZING's TAFIGEL® rheology modifiers are designed to cover a wide range of viscosity profiles. Focus is on good application properties, easy incorporation, and positive influence on properties of the coating formulation like gloss, water resistance, etc. Our range of synthetic rheology modifiers includes anionic associative acrylic (HASE) and nonionic …
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COAPUR TM 6050 is an associative polyurethane thickener, efficient rheological additive for matte and gloss paints.. COAPUR TM 6050 known for its ability to efficient thickening at low shear stresses, is a logical application to COAPURTM TM 5035 or COAPURTM TM 3025.. APPLICATION: It is extremely difficult to achieve regulation of rheology of modern …
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Oct 23, 2000· October 23, 2000. This article provides a set of thickener recommendations arranged by paint type, focused not on chemistry, but on practical guidelines with supporting application data. Table 1/Performance Summary. The guidelines in this article apply to organic thickeners and rheology modifiers: hydroxyethylcellulose (HEC), …
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Oct 23, 2000· Acknowledgements. Special thanks to Harold Haag, Forrest Hentz and Caroline Wilson for developing the paint applications data. For more information on thickeners, contact Aqualon Division, Hercules Inc., 1313 N. Market St., Wilmington, DE 19894; phone 302/594.5000; fax 302/992.7178; visit ; e-mail …
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Jan 01, 2015· Associative polyurethane (PU) thickener has been synthesized by preparing the prepolymer with the reaction of polyethylene glycol (PEG) and isophorone diisocyanate ... s on their self-assemblies in solution," The Journal of Physical Chemistry B, vol. 108, no. 24, pp. 8269-8277, 2004.
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Lubrizol polyurethane dispersions are used in a variety of applications, including: Paints and coatings—for adhesion to multiple substrates in transportation, industrial OEM, protective, wood, and building and construction polyurethane paint and coatings. They deliver 2K performance with 1K systems. The new high-solid content polyurethane ...
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RHEOVIS ® PU 1250 NC is a non-ionic rheology modifier for waterborne coatings that provides structural viscosity. It is a polyurethane polymer in water/butoxydiglycol. This yellowish, white hazy liquid is suitable for thickening and modification of flow properties of waterborne polymers and other aqueous systems as well as for finished ...
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Conventional thickeners and clarifiers by . thickeners and clarifiers s Conventional thickeners Features Proven design extended to all drive head amp clarifiers are designed for sizes continuous . Inquire Now; Conventional thickener THK ANDRITZ GROUP?
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Aug 24, 2021· Polyurethane thickener is a low-odor, solvent-free water-based non-ionic associative rheology modifier (hydrophobic modified polyurethane), providing excellent flow and leveling, uniform film-forming performance, and gloss display Performance and high thickening efficiency. Product features: 1. Rapid thickening effect, good dispersion ...
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Oct 01, 2003· For premium-class associative thickeners based on polyethyleneglycol, the hydrophobic caps are in most cases linked to the polyethyleneglycol by reaction with a diisocyanate to form a polyurethane. The products are therefore polyurethane thickeners, often called HEUR (hydrophobically modified ethoxylated urethane thickener) or just PU …
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These novel copolymers provides the good flow and leveling and gloss retention that polyurethane associative thickeners impart to water-based systems, without the loss of clarity that such polymers have caused in the past. Levels of the rheological thickening composition, varying between about 0.01% and about 10%, based on the total weight of ...
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1. A water soluble or water dispersible polyurethane, which is suitable as a thickener for aqueous systems, and is prepared by reacting at an NCO/OH equivalent ratio of 0.8:1 to 1.4:1. a) an alcohol component containing. a1) 25 to 80 mol-% of one or more compounds corresponding to the formula.
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