I know a few folks on here highly dislike WikiPedia (and have rather rudely told me about it in previous threads - I just ignore them), but here are some basics from:
http://en.wikipedia.org/wiki/Phthalate#Uses"Phthalates are used in a large variety of products, from enteric coatings of pharmaceutical pills to viscosity control agents, gelling agents, film formers, stabilizers, dispersants, lubricants, binders, emulsifying agents, and suspending agents. End applications include adhesives and glues, agricultural adjuvants, building materials, personal care products, detergents and surfactants, plastic objects, paints, printing inks and coatings, pharmaceuticals, food products and textiles."