Carbon fiber reinforced polymer as epoxy, but other thermoset or thermoplastic polymers, such as polyester, vinyl ester, or nylon, are sometimes used. The composite material may contain aramid (e.g. Kevlar, Twaron), ultra-high-molecular-weight polyethylene (UHMWPE), aluminium, or glass fibers in addition to carbon fibers. The properties of the final CFRP product can also be affected by the type of additives introduced to the binding matrix (resin). The most common additive is silica, but other additives such as rubber and carbon nanotubes can be used. The material is also referred to as "graphite-reinforced polymer" or "graphite fiber-reinforced polymer" ("GFRP" is less common, as it clashes with
Gramophone Company mechanical patents that he owned, which patents were valuable in the agreement with Columbia. Thus, Victor and Columbia began making flat records in the U.S., with UK Gramophone and others continuing to do so outside the U.S. This left Edison the only major player in the making of cylinders; Columbia still made a limited number for a few years. Emile Berliner went out of the business. All he had left were the masters of his earlier records. These he took to Canada and reformed his Berliner label in Montreal, where he used the "His Master's Voice" trademark. Edison would soon