NineSigma Inc., representing an unidentified polymer company, is seeking proposals from researchers or organizations interested in identifying, developing, or supplying chemical cross-linking agents to cure thermoset rubbers, such as EPDM (ethylene-propylene-diene-monomer) in the presence of thermoplastics. The reaction is to occur under high shear mixing conditions at temperatures ranging from 180 C to 230 C, and the chemical cross-linking system must be non-toxic, odor-free, and cost effective. Preferably, it would be a non-colorant, as well. To review a request for proposal, visit www.ninesigma.com/ManagedExchange/rfp_00127_1.html. Cleveland-based NineSigma Inc. is the creator of a Web-based marketplace that connects science and technology buyers and suppliers.