. . "He developed and patented an acrylic-ABS material called Akralac that allowed the company to develop some of the first bathtub liners made of the blend in the early 1970s.The innovation started a chain of applications from other thermoformers in such products as automotive exteriors, boat hulls, shower stalls and recreational vehicles.Bill Benjamin was born July 19, 1939, in Youngstown, Ohio." . .