For the manufacturers of waxes, solvents and additives, 2007 was a solid year, although there are Photo courtesy of Colloides Naturels, Inc. numerous challenges as raw material costs surged. However, there was also good news, as interest in new technologies, notably environmentally-friendly products, is driving growth in the market.     “Lubrizol’s waxes and additives lines followed a very strong year in 2006 with another good year in 2007,” said Josh Rosenheck, commerci...