John Pantanella, —President & Founder
Education: University of Massachusetts, BS Engineering 1990
After college, he began working for a manufacturer of specialty polyurethane chemicals, where he held various positions including formulator, technical service representative and production supervisor. In 1994, he relocated to St Louis, Missouri after accepting a sales position with a specialty chemical distributor. While selling chemicals by day, he worked nights and weekends creating formulas for polyurethane products out of a make-shift laboratory. After successfully developing multiple products, he left the security of his day job and established Chemline, Inc. in 1997 and continues to be involved in day-to-day operations.
Jim Segbers – VP of Sales
Education: Washington University, BS Chemical Engineering 1981
Jim entered the polyurethanes marketplace as a Sales Rep for the Dennis Chemical Company in 1981, becoming its Vice President of Sales in 1995. Upon the acquisition of Dennis Chemical by The Geon Company, Jim operated in a variety of Sales and Business Management roles in Geon’s Specialty Formulators Group, and continued as a National Sales Manager for the company after it was merged with MA Hanna to form PolyOne Corp. After PolyOne spun off its polyurethane business in a joint venture with Bayer MaterialScience, Jim continued his career as the National Sales Manager for BayOne Urethane Systems LLC from 2003 until 2009.
In 2009, Jim joined Chemline as Vice President of Sales, handling commercial operations for the company. In 2015, Jim transitioned into the Commercial Director/Executive Vice President role, and took on additional responsibilities to oversee all commercial activities, coordinating both the laboratory and selling departments and meshing them into a unified Commercial Development department.
Kevin McCullough – VP of Operations
Education: Southern Illinois University, BS 1977
Upon graduation, Kevin joined the Rexall Drug Company as a Production Supervisor and was promoted to Manufacturing Manager during his eight years with the company. In 1986, he joined the Dennis Chemical Company specializing in liquid vinyl and polyurethane coatings as Plant Manager. He was promoted to Vice President of Manufacturing in 1991. Dennis Chemical was acquired by GEON which subsequently merged with MA Hanna to form PolyOne in 2000. There he served as Operations Manager with responsibility over six manufacturing plants in the Specialty Formulators Division. Kevin joined Chemline in 2008 as Vice President of Operations, a role he continues in today.
Mark Bussen – VP of Finance and Accounting
Education: Baylor University, BBA Economics & Finance 1991 | Washington University, St. Louis, MBA 2000 | Certificated Management Accountant 2011
Mark began his career working for Monsanto Chemical Company in Springfield, MA in cost accounting, for 5 years before moving to Monsanto’s corporate headquarters in St. Louis, MO. There he played a key role in restructuring Monsanto’s leveraged ESOP plan in conjunction with Monsanto’s spinoff of Solutia. Mark left Monsanto in 1998 to pursue a full-time MBA at Washington University in St. Louis. Upon graduation in 2000, he worked for Earthgrains in Corporate Planning and Analysis. After Earthgrains was purchased by Sara Lee in 2001, Mark joined PlayPower Inc., a maker of commercial playground equipment, where he held a number of positions of increasing responsibility including Director of Finance and Administration. After leaving PlayPower in 2012, he joined C.L. Smith Company, a manufacturer and distributor of packaging supplies, as Controller. Mark joined Chemline in 2017 as Vice President of Finance and Accounting, and continues in that role today.
Mark Vanover – Business Unit Manager
Education: Washington University, BS Chemical Engineering, 1985
Mark entered the polyurethane systems business in 1985 as a technical sales representative for Dennis Chemical. The majority of Mark’s career has been in the technical sales area coordinating the development of polyurethane business in partnership with laboratory personnel. Past responsibilities in the polyurethane industry include Technical Sales Representative, Key Account Manager, Regional Sales Manager, Product Manager, and Industrial Marketing Manager. Past employers include Dennis Chemical, PolyOne Corporation, and Bayer MaterialScience (Covestro). Mark Joined Chemline in 2015 as the Business Unit Manager for the Fast Set Spray group.
Nick Segbers - Director, Cold Cast Elastomers
Education: BS Finance and BS Accountancy, Truman State University 2008, MBA and Knight Scholar, Washington University in St. Louis 2015
Nick began his career at Chemline as a college summer intern, and took a full-time position as a formulating chemist upon graduation in 2008. He was able to learn the business and the technology, eventually creating key formulas to gain multiple top ten customers. After three years, Nick transitioned into a sales role with responsibility for key account management and new business development.
In 2015, Nick took responsibility for the commercial operations of Chemline’s newly established Cold Cast Molded Products business unit. After a successful start, Chemline acquired T.A. Davies Co. in Los Angeles, CA to establish a West Coast manufacturing presence for the expanding Cold Cast business. Nick continues to oversee the aggressive growth of the Cold Cast business unit today.
Chris Maupin- Director, Hot Cast Elastomers
Education: BS Chemistry, University of Connecticut/MBA, University of Maryland University College
Chris began his career in urethanes with Uniroyal Chemical in 1989 developing the company’s first low-free-TDI products and patenting its manufacturing process for producing low-free-MDI and low-free-PPDI prepolymers, ultimately advancing through a series of technical, commercial and overseas positions with global scope. In 2015, Chris joined Chemline bringing a wealth of industry, formulation and application expertise. He currently guides all sales and technical aspects of the Hot Cast Elastomer business unit.