By the mid- to late-1940s, two of Joe’s sons, Ben and Rudy Miller, were running Miller Waste Mills and realized that the railroad era and the waste business had peaked. With the same entrepreneurial spirit as their father, they began to look for new opportunities, and settled on the relatively new plastics industry. In 1948, they started Fiberite, a thermoset plastic company. Although Fiberite struggled at first, it proceeded to grow and prosper, and was sold to Beatrice Foods in 1980. A small fraction of Fiberite’s products were thermoplastics. The thermoplastics portion of the business was sold back to the Miller family in 1982, and ultimately became RTP Company, named for Reinforced ThermoPlastics. Hugh Miller, Ben’s son and Joe’s grandson, has been running RTP Company ever since.
Over the years, we have grown steadily and have added facilities around the world: Wiman Corporation, our plastic film subsidiary; Engineered Sheet Products, our plastic sheet division; Hueforia, our color team; a high volume contract manufacturing division; and a partnership with ResMart, a distributor of unfilled resins.
Today, RTP Company is a world leader in specialty thermoplastic compounding. Headquartered in Winona, the original plant is located on Front Street where a sawmill once stood. With manufacturing operations in the U.S., Europe and Asia, RTP Company makes thousands of products each year for a variety of markets, including electronics, business machines, automotive, appliance, consumer, medical, sports and leisure, and industrial. RTP Company employs over 1,600 people and is founded upon a very strong customer service culture that focuses on technology, flexibility, independence, and speed.