Cross-linked acrylate

B. Vollmert, Impact-resistant plastic compositions comprising a styrene polymer and a cross-linked acrylic acid ester polymer, and process for preparing same, US Patent 3 055 859, assigned to BASF AG, September 25,1962. 

Super absorbent polymers. These cross-linked acrylic polymers are used in baby diapers. Copolymer versions are used in agriculture and other specialty absorbent applications. 

These cross-linked acrylic polymers are referred to as Super Absorbents and Water Crystals . The origins of super absorbent polymer chemistry trace back to the early 1960s when the US Department of Agriculture developed the first super absorbent polymer material. This chemical is featured in the Maximum Absorbency Garment used by NASA. 

Progesterone Mucoadhesive Cross-linked acrylic acid [49]... 

Superabsorbents. Water-swellable polymers are used extensively in consumer articles and for industrial applications. Most of these polymers are cross-linked acrylic copolymers of metal salts of acrylic acid and acrylamide or other monomers such as 2-acrylamido-2-methylpropanesulfonic acid. These hydrogel forming systems can have high gel strength as measured by the shear modulus (134). Sometimes inorganic water-insoluble powder is blended with the polymer to increase gel strength (135). Patents describe processes for making cross-linked polyurethane foams which contain superabsorbent polymers (136,137). 

Fig. 1. Modulus—temperature curve of amorphous and cross-linked acrylic polymers. To convert AfPa to kg/crn2, multiply by 10.

Electron-Beam Sensitivity of Cross-Linked Acrylate Resists... 

S. Asakuma, H. Okada, T. Kunitake, Template Synthesis of Two-Dimensional Network of Cross-Linked Acrylate Polymer in a Cast Multibilayer Film , J. Am. Chem. Soc., 113, 1749 (1991)... 

An extremely soft cross-linking acrylic polymer Advantages ... 

CNC THICKENER 60 is an acid-containing, cross-linked acrylic emulsion copolymer. When the emulsion is diluted with water and neutralized with a base, each emulsion particle swells greatly. The emulsion then becomes highly viscous. 

Self cross-linking acrylic emulsion. Excellent product for compounded coatings. 

Self cross-linking acrylic copolymer. Excellent durability. Very tough polymer. 

Very soft cross-linking acrylic emulsion. 

Self cross-linking acrylic. Very soft hand, resistance. 

Porous polymers also are useful for gas analyses and for very polar molecules, such as amines, glycols, and acids. Copolymers of styrene and divinylbenzene and others, such as ethylvinylbenzene-divinylbenzene, cross-linked acrylic ester, vinylpyridine, pyrollidone, and ethylene glycol dimethacrylate, are commercially available. ... 

The photolnltlated degradation of a typical melamine cross-linked acrylic enamel studied by using this technique will be discussed. 

Subsequently D Alello developed the polystyrene-hased resin in 1944 (4). Two years later, polystyrene anion-exchange resins made hy chloromethylation and amination of the matrix were produced. Four principal classes of ion-exchange resins were commercially availahle by the 1950s. These are the strong-acid, strong-hase, and weak-hase resins derived from styrene-divinylbenzene copolymers, and the weak-acid resins derived from cross-linked acrylics. To this day, the most widely used ion exchangers are synthetic organic polymer resins based on styrene- or acrylic-acid-type monomers as described by D Alelio in U.S. Patent 2,3666,007. 

Cross-linked acrylic ester 400-500 Polar 660 620 General mid-polar, solvents, esters, aldehydes, ketones... 

Cross-linked acrylic ester 100-200 Polar 710 645 Selective for polar compounds, HCHO aldehydes, carboxylic acids and esters, glycols... 

Acrylics (cyanoacrylates anaerobic, by heating or UV-irradiation cross-linking acrylates) for mounting adhesives, sealants, and for adhesive tapes [2,3]... 

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