Alkali-soluble emulsions

Alkali-soluble emulsion that improves the high-shear viscosity of a formulation. Recommended in conjunction with the ACRYSOL ASE thickeners to maintain viscosity at high shear rates. Not recommended as a primary thickener in most applications. [Pg.489]

Anionics (e.g., hydrophobically modified alkali-soluble emulsions, HASE) Inorganic thickeners... [Pg.115]

FIG. 5.3 Measured flow curves for aqueous solutions of four common types of rheology modifiers. ASE is an alkali swellable/soluble emulsion-type rheology modifier and HASE is a hydrophobically modified alkali-soluble emulsion. [Pg.117]

Both of the types of polymer mentioned above can be modified by the incorporation of hydrophobic monomers onto the essentially hydrophilic acrylate backbone. The effect of this is to modify their characteristics by giving them so-called associative properties. These hydrophobes can interact or associate with other hydrophobes in the formulation (e.g., surfactants, oils, or hydrophobic particles) and thus build additional structures in the matrix [3-11]. These associative polymers are termed cross-polymers when they are based on carbomer-type chemistry [12] and hydrophobically modified alkali-soluble emulsions (HASEs) when based on ASE technology. [Pg.119]

HASE, hydrophobically modified alkali-soluble emulsion x-ASE, crosshnked alkali swellable/soluble emulsion. [Pg.122]

The AST process receiving the greatest industrial and academic attention by far has been that of emulsion polymerization, and because of the relative importance of the emulsion thickeners, these polymers will be the object of considerable discussion in this review. When conventional ASTs are specifically prepared by this process, alkali-swellable or alkali-soluble emulsions (ASE) are obtained. For conventional ASTs produced by processes other than emulsion polymerization (nonemulsion), the acronym ASNE has been adopted herein. The associative ASTs have analogous designations. HASE is the common acronym for hydrophobically modified, alkali-swellable or alkali-soluble emulsion, and HASNE is the adopted acronym for the associative nonemulsion thickeners. The family of AST polymers reflecting this classification scheme is shown in Figure 2. [Pg.461]

HASE Hydrophobically modified alkali-swellable or alkali-soluble emulsion... [Pg.491]

Hydrophobically Modified Alkali-Soluble Emulsions as Thickeners for Exterior Latex Paints... [Pg.543]

LeSota et al. Hydrophobically Modified Alkali-Soluble Emulsions 545... [Pg.545]

HASH hydrophobically-modified alkali-soluble emulsions ... [Pg.32]

Alkali-soluble emulsion polymers were originally developed as thickeners based on copolymers of acrylic acid and methacrylic acid with simple acrylic and methacrylic esters, as exemplified by their preparation in patents to S.C. Johnson... [Pg.137]

Wood and metal including anticorrosive finishes - special emulsions ensure requisite hardness, solvent resistance etc. in air drying of stoving finishes Alkali-soluble emulsion polymers provide a reliable, consistent varnish base, particularly for flexographic inks... [Pg.225]

Sheng WP, Tam KC, Jenkins RD, Bassett DR (2000) Calorimetric studies of model hydrophobically modified alkali-soluble emulsion polymers with varying spacer chain length in ionic surfactant solutions. Macromolecules 33 1727-1733... [Pg.251]

The only conventional synthetic thickeners used in substantial amounts in water-based coatings are the alkali-soluble emulsions (ASE). These are supplied in liquid form as low viscosity water-insoluble latexes at low pH. In use they are neutralized with anmonia or a volatile aminoalcohol to provide thickening. The most commonly used ASEs are copolymers of methacrylic acid and ethyl acrylate. Some are lightly crosslinked with a small amount (<1%) of a polyfimctional monomer to enhance viscosity. The ASEs are similar to the cellulosics in theology, but more bioresistant and somewhat more water sensitive. [Pg.140]

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