Copolymers pigment dispersion

Uses Plasticizer/stabilizer for epoxy, PVC, paints plasticizer/synergist for PVC heat stabilizers plasticizer in food-contact polymers coupling agent for S/B block copolymers pigment dispersant in PVC-P in closure-sealing gaskets for food containers in food-contact polysulfide polymer/polyepoxy resins... 

I.C. Chu, M. Fryd, and L.E. Lynch, Aqueous graft copolymer pigment dispersants, US Patent 5 231131, assigned to E. I. Du Pont de Nemours and Company (Wilmington, DE), July 27,1993. 

Exploiting ATRP as an enabling technology, we have recently synthesised a wide range of new, controlled-structure copolymers. These include (1) branched analogues of Pluronic non-ionic surfactants (2) schizophrenic polymeric surfactants which can form two types of micelles in aqueous solution (3) novel sulfate-based copolymers for use as crystal habit modifiers (4) zwitterionic diblock copolymers, which may prove to be interesting pigment dispersants. Each of these systems is discussed in turn below. 

Poly(acrylic acid) is water soluble. Because of its water solubility and its ability to increase the viscosity of water, it is used as a thickener. It is also a good flocculent for sewage treatment and is added as a pigment dispersant in latex paints, and is used in binders and adhesives. Polymers and copolymers containing acrylic or/and methacrylic acid are manufactured at a rate of about 2,000,000 metric tons yearly. 

Ma S-H, Ford C. (1999) Block copolymers of oxazolines and oxazines as pigment dispersants and their use in ink jets, EP0915138. 

Vinyl copolymers substituted with -OH, -0-R, -0C(0)-R, -C(0)-R, or -C5H4N groups have various practical applications, depending on their composition. These applications include uses in glues, lacquers, protective films, flocculent agents, various formulations in cosmetics (e.g. poly(1-vinyl-2-pyrrolidinone-co-ethyl methacrylate-co-methacrylic acid) is used in hair spray formulations, poly(1-ethenyl-2-pyrrolidinone-co-1-eicosene) is used as a pigment dispersant in cosmetics), etc. A number of pyrolysis studies were done on these materials [43], etc. Some thermal properties of a few common vinyl copolymers are summarized in Table 6.5.14. 

A C Copolymer. [Allied-Signal] EVA and ethylaie-acrylic acid copolymers plastics lubricant and processing aid, pigment dispersant... 

Scripset . [Monsanto] Styrene maleic anhydride copolymer emulsifier, binder, sizing agent vise, modifier, stabilizer starch modifier pigment dispersant protective colloid, sizing, coating, watm -paint calsomines, ad ives, printing, paints. 

Chem. Descrip. Sodium 04-12 olefin/maleic acid copolymer Uses Dispersant for dyestuffs, pigments, emulsion polymerization, paints Features High performance in dispersing inorganics such as TiOj and clay in aq. systems... 

Chem. Descrip. Glycerin-1-allylether CAS 123-34-2 EINECS/ELINCS 204-6204 Uses Can be polymerized into polyesters, polyurethanes, polyacetals, and epoxy resins (hydroxyl group) or with acrylates, methacrylates, or styrene (ilyl group) for prod, of PL) rubber and foam printed circuit boards unsat. polyesters used for radiation-resist, coatings copolymers as dispersants for pigments or as corrosion inhibitors Properties Colorless to yish. vise, liq., perceptible odor sol. in water, ethanol, and many org. soivs. dens. 1.07 g/cc vapor pressure 0.004 mbar (20 C) m.p. < C b.p. 245 C (decomp.) flash pt. 135 C pH 7 (5% aq.) 9 /o assay... 

Chem. Descrip. POE-modified dimethylpolysiloxane block copolymer Uses Wetting agent, emulsifier in water-based coatings, inks, polishes, hard surf, cleaners clay/pigment dispersant leveling agent flow control... 

Chem. Descrip. Monofunctional oleo alkyleneoxide block copolymer Uses Wetting agent, pigment dispersant, gloss aid for coatings and aq., binder, and solv.-free pigment pastes, water-based alkyds, polyester resins, aq. PU emulsions... 

Chem. Descrip. Silicone copolyol copolymer Uses Gloss aid in hard surf, cleaners and carwashes pigment dispersant release agent... 

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