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 trademark. The latter had been designed by Theodore Birnbaum, an executive of the Gramophone Company pressing plant in Hanover, Germany. While the general public came to refer to the records and company as "His Master's Voice" or "HMV" because of the prominence of the phrase on the record labels, The Gramophone Company was never officially known as the HMV or His Master's Voice Company. The painting "His Master's Voice" was made in the 1890s with the dog Nipper listening to an Edison cylinder phonograph. In 1899, Owen bought the painting from Francis Barraud, the artist, and asked him to paint