An improved process for preparing elastomeric coatings on fibers and compositions of water-dispersed polymers.

摘要

Novel water-dispersed compositions are prepared containing an amine-containing polymer or a carboxyl-containing polymer, useful in water-borne resin systems. Additionally, fibers having uniformly thin and continuous elastomeric coatings by contacting the fibers with water-dispersed compositions, and drying then curing said compositions; wherein said compositions contain (1) reactive polymer, (2) epoxy resin, and (3) curing agent; and wherein said reactive polymer composition contains (a) a lower molecular weight reactive polymer, (b) a select solvent, (c) a dispersing agent, and (d) water. The elastomeric films have a Tg value of about 0 DEG C. or below. The elastomer coated fibers are useful as strengtheners and impact modifiers for brittle materials such as epoxy resins.