GELLED FIBER REINFORCED PLASTICS AND GEL COATS
Publication Date: 2002-Mar-21
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Gelled matrix liquid compositions suitable for constructing fiber reinforced plastics and gel coats are disclosed which comprise a matrix liquid and a gellant, the liquid being a mixture of one or more polymerizable monomers, an unsaturated polyester resin, a curing catalyst and optional components such solvent and inert filler and an organic polyamide gellant. The preferred polyamide gellant is a polymerized fatty acid-based polyamide terminated by either ester or secondary amide groups. The disclosed gellants are readily incorporated into the matrix liquid composition by mild heating and or high shear mixing to form, when cooled, a homogenous, shear-thinnable gel with thixotropic character that prevents separation of the liquid from the fiber matrix or sagging of the gel coat.