Small companies, long-term impact

I worked for a dozen years for one such small company with an outsized influence on the composites industry, called Fiberite, started in 1948 in Winona, MN, US, by two brothers, Ben and Rudy Miller. The two ran a family business, Miller Waste Mills, which recycled cuttings from clothing manufacturers, particularly those using denim fabrics. Such scraps found use as a lubricant for
train wheels, among other applications. Looking for a new outlet for these waste textiles, they created a cotton fabric-reinforced phenolic molding compound, and established Fiberite to manufacture and sell it into applications such as timing gears for automobiles. The product line expanded to include melamine resin compounds for food trays, then fiberglass-reinforced phenolics, melamines and epoxy compounds. Given this expertise in “putting glue on string,” Fiberite entered the continuous-fiber prepreg business, first with glass fabrics, then carbon fiber fabrics and unidirectional tapes (and some carbon fiber molding compounds as well). They expanded from Winona, adding a molding compound facility in Delano, PA, US, and a prepreg line in Orange, CA, US, to serve the aerospace industry along the US west coast. 

Having become major materials suppliers to the composites industry, the Millers added glass-reinforced engineered thermo- plastic molding compounds to their portfolio in the 1970s. They were among the first to offer a long glass (6- to 12-mm) pellet form for structural applications. In 1980, the Millers sold Fiberite to Beatrice Foods, where it became a wholly owned yet independent subsidiary. Because Beatrice already held a dominant position in engineering thermoplastic compounds through another subsidiary (LNP, now part of SABIC), they were forced to sell the thermoplastic operations of Fiberite back to Miller Waste Mills. The Millers established the business as RTP Company, which remains in Winona and is still held by the Miller family.

Beyond its role as a major player in the advanced composites industry, Fiberite had a big influence on the city of Winona, and the local composites community. A number of composites companies thrive today in Winona, some arising out of the entre- preneurial efforts of former Fiberite employees. These include not only RTP but Composite Products Inc. (now part of Core Molding Technologies), PlastiComp, Wenonah Canoe, Coda Composites and a compounding plant of Celanese Corp. (Irving, TX, US) as well. The overall population of Winona hasn’t changed much, growing from 25,000 in 1950 to about 28,000 today, but given this local concentration, Winona State University offers the only accredited undergraduate degree in composites engineering in the US, with 32 graduates in 2015.

After the divestiture of RTP, Beatrice sold Fiberite to Imperial Chemical Industries (ICI) in 1985, which established additional facilities in Texas, Arizona and Europe. In 1995, with the overall company at about 750 employees, ICI sold the company to an investment firm. Throughout these transitions, Fiberite retained its identity as a wholly owned subsidiary. In 1997, in its 49th year
of operation, a major competitor, Woodland Park, NJ-based Cytec Industries (now part of Solvay, Brussels, Belgium), purchased the company and integrated it into its operations. As employees of Fiberite, we didn’t get the chance to celebrate 50 years of independent operation, which makes the Fibergrate and IDI anniversaries all the more special.

Dow Chemical Co.