Antisettling agent

Another group of additives are used as thickeners and antisettle agents. They affect flow and reduce sagging of thick films. 

Antiscorch agents - Scorch retardants Antisettling agents Antiskinning agents Antistatics... 

To prepare the pigmented nail varnish, 12 parts thixotropic paste and 0.8 parts antisettling agent (e.g., MPA 2000 X) are dispersed in 83.7 parts clear varnish, during which operation a temperature of at least 38°C is to be reached. One part... 

CM Wetting Agent [Sdem Industries] Vise, suppressant antisettling agent processing aid. 

Haroil SCO. [Graden] Sulfated castor oil superfatting agoit emulsifier for cosmetics plastkizer for adhesives antisagging and antisettling agent for paints and stains. 

Sta B12. [Hofflnann-La Roche] Vitamin B12. Vise, supjnessant antisettling agent fuocessing aid. 

Percbem . [Akzo] Montnxuillonite or hectorite clays riieological additives, gellant, antisettling agent, viscosifier. 

Addition of wetting and antisettling agents required for incorporation of pigments and extenders... 

Finely ground minerals such as talc (10-20 wt%) and mica, or aluminum powder (1 -5 wt%) are usually incorporated into the asphalt to improve its film properties, in particular its mechanical, weather, and aging resistance. Antisettling agents such as montmorillonite-bentone (0.5-1.5 wt%) also have to be used. 

In practice the ester is mixed with the required amount of water and a suitable solvent (e.g., alcohols, esters, ketones). To obtain 100 Vo hydrolysis of 1 mol of an orthosilicate, 2 mol of water must be added. By maintaining a constant pH (for ethyl silicate ca. 2) the condensation reaction can be suppressed to such an extent that hydrolyzates of ethyl silicate containing 20% SiOj and with a degree of hydrolysis of 80-90% remain stable for about one year. If this equilibrium is disturbed (e.g., by shifting the pH value or evaporating the solvent), condensation commences and the solution solidifies after a short time. This mechanism is used in two-pack zinc dust paints. In the simplest case the binder is a hydrolyzate in alcoholic solution. Zinc dust and, if necessary, extenders, antisettling agents, colorants, etc. are then added. Addition of zinc consumes acid and the pH value increases. 

In order to produce ready-for-use zinc dust paint, zinc dust is slowly added to the binder in a ratio of 4-4.5 1 while stirring. Binder additives (e.g., antisettling agents such as bentonite, pyrogenic silica) and zinc dust additives (e.g., extenders such as mica, talc, kaolin, or colored components such as chromium(III) oxide, titanium dioxide) can be used to adjust the application behavior and properties of the paints. 

Uses Rheology control agent pigment antisettling agent forwater[Pg.27]

CAS 112945-52-5 EINECS/ELINCS 231-545-4 Uses Thickener, thixotrope, structuring agent for epoxy-based systems, adhesive and multilayer systems antisettling agent, antisag agenL corrosion inhibitor for paints, plastics... 

Chem. Descrip. Montmorillonite clay CAS 1318-93-0 EINECS/ELINCS 215-288-5 Uses Rheology control agent, thickener, antisettling agent, syneresis inhibitor in water-based coatings, other aq. systems... 

Chem. Descrip. Bentonite organoclay CAS 1302-78-9 EINECS/ELINCS 215-108-5 Uses Rheology control agent, antisettling agent for paints/coatings, ap-pliance/metal furniture topcoats, traffic paints, anticorrosive primers, plastic clear coats, marine topcoats Features Requires a polar activator... 

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