About PureTemp LLC


PureTemp is a biobased specialty chemical company with offices in Plymouth, Minn., and Tuscaloosa, Ala.

PureTemp LLC, originally known as Entropy Solutions, began producing the world’s first 100 percent renewable phase change material in 2007. These patented PCMs, developed in three years of research sponsored by the U.S. Department of Agriculture, are used in a wide variety of temperature-control applications, from cooling vests and warming blankets to refrigerators and thermal energy storage tanks. Derived from 100 percent sustainable sources such as animal fat and plant oil, PureTemp phase change material is nontoxic and biodegradable. It is engineered to maintain more than 200 different transition temperatures with consistent, repeatable performance.


Henry Cousineau Chief Executive Officer
Henry Cousineau

Mr. Cousineau helps manage the company’s strategic direction, as well as develop major business partnerships. He is also PureTemp’s chairman of the board and its lead investor. In 1985, he founded Novus Marketing Inc., a successful direct marketing and print-buying business. In 2000, he sold Novus to Omnicom Group, Inc. (NYSE: OMC). Since then, and prior to his work at PureTemp, he has invested in and helped found various start-up organizations. Henry is the founding partner of Atlas Capital Partners, an angel investment fund providing financial and human capital to early stage businesses (www.ACPartners.us). He has been a Minnesota resident his entire life.

RoxAnne Best President

Ms. Best joined the company in 2014. She holds an MBA degree in marketing from the University of St. Thomas and a bachelor’s degree in mathematics from St. Olaf College. She has held leadership roles at Universal Technical Institute, Rasmussen College, Capella Education Co., Star Tribune Interactive Media and Novus Marketing Inc. She has spent much of her career leading executive teams through significant change in high-growth markets. She has extensive experience in transforming information, technology and analytics into full-scale strategic operating plans that optimize operational effectiveness, improve customer service and diversify revenue streams. She and her husband, Scott, live in Minnesota and have three adult children.

Erik Warg Supply Chain and Operations Manager

Mr. Warg joined the company in 2014. He holds a bachelor of science degree in chemistry from the University of Minnesota and an MBA from the University of St. Thomas. He has a decade of experience in product development and commercialization, supply chain and quality management within the pharmaceutical and chemical industries. He lives in the Twin Cities with his family. He enjoys skiing, golfing and going up to the cabin (like a good Minnesotan).

Chris Servais Vice President of Operations
Chris Servais

Mr. Servais joined the company in 2008. He holds a bachelor of science degree in Industrial Engineering and Management from North Dakota State University and an MBA  from the University of St. Thomas. He held a variety of engineering and operational roles at UPS (1987-2000) and at SimonDelivers, where he served as director of engineering and logistics and as vice president of operations (2000-2008).


William R. Sutterlin, Ph.D. Chief Science Officer
William Sutterlin, Ph.D.

Dr. Sutterlin has more than 16 years of experience in the animal fat and vegetable oil research and development field. His educational background includes a Ph.D. in chemistry from the University of Missouri and post-doctoral studies in chemical engineering. He has been the primary investigator for numerous projects funded by a total of $5 million in federal and private grants. He has served as a board member for several companies in the United States and abroad. He is part of the U.S.-Brazil research collaboration in biomass conversion. Sutterlin’s honors include the prestigious Presidential Green Chemistry Challenge Award. He has experience in chemical production, analysis and planning. His research interests include the conversion of agricultural products and other biomass materials into higher value added chemicals.

Heather M. Watson, Ph.D. Manager, Analytical Services
Heather Watson, Ph.D.

Dr. Watson earned her Ph.D. in analytical chemistry at the University of Alabama. As manager for analytical services, she developed the lab methods and procedures associated with PureTemp's ISO 9001 quality management system and oversees key analytical laboratory testing of all manufactured lots. She has expertise in a number of advanced analytical techniques including differential scanning calorimetry and mass spectrometry.

Aymara Albury, Ph.D. Organic Chemist
Aymara Albury, Ph.D.

Dr. Albury joined the company in 2013 after earning her Ph.D. in synthetic organic chemistry at the University of Alabama, where she specialized in the total synthesis of biologically active natural products. She earned her bachelor of science degree in chemistry at University of Alabama, where she was an outstanding track and field athlete, specializing in the shot put and hammer throws. She earned numerous athletic and academic awards during her time at the Capstone. She was born and raised in Nassau, Bahamas, and has represented the Bahamas in numerous international sporting events.

Keith McNeil, Ph.D. Chemist
Keith McNeil, Ph.D.

Dr. McNeil joined the company in 2013. He earned his Ph.D. in chemistry from the University of Alabama in 2013, and a Bachelor of Science degree in chemistry at the University of West Alabama. His research interests include polymers, nanoparticles and thin films.


Sonoco ThermoSafe Arlington Heights, Ill.

Sonoco ThermoSafe logoSonoco ThermoSafe, a unit of Sonoco (NYSE:SON), is a leading global provider of temperature assurance packaging for the safe and efficient transport of pharmaceuticals, biologics, vaccines and other temperature-sensitive products. With operations in North America, Europe and Asia, Sonoco ThermoSafe has a vast product offering featuring industry-leading technology that encompasses refrigerated, frozen or controlled room temperature applications. PureTemp has an exclusive and global relationship with Sonoco ThermoSafe regarding the use of PureTemp PCMs in life science shipping applications. PureTemp phase-change materials have allowed Sonoco ThermoSafe to significantly expand its product and solution offerings for custom and ready-engineered solutions such as Envoy, Certis, Via, and pallet shipper product lines.

Glacier Tek Plymouth, Minn.

GT logoGlacier Tek offers a wide range of body cooling products powered by PureTemp phase change materials. The company has more than 20 years of experience in PCM containment. Glacier Tek's first product, the Original Cool Vest, was among the earliest self-contained cooling vests on the market. Since then, Glacier Tek has developed a unique expertise in the encapsulation and packaging of renewable PCMs and expanded its reach into large-scale thermal energy storage. 

Encapsys Appleton, Wis.

Encapsys logoThe Encapsys lineage dates back to the microencapsulation pioneers of the early 1950s. Sixty years later, the company continues to lead the industry in growth and applied innovation. Encapsys’ readily available formaldehyde-free solutions set it apart from competitors using traditional encapsulation materials and methods. Encapsys experts have helped solved encapsulation challenges from A (agriculture) to Z (zeta potential). Each year, the company manufactures tens of thousands of metric tons of various types of microcapsules and ships them worldwide from its ISO 14001-certified plant in Portage, Wis. 


Mohammed Farid, Ph.D. University of Auckland
Mohammed Farid, Ph.D.

Dr. Farid, a professor of chemical and materials engineering at the University of Auckland, New Zealand, is a leading authority on thermal energy storage and phase change materials. He has been working since 1980 on the development of PCMs, their encapsulation and applications, from buildings and cold storage to the cooling of batteries and electronic devices. His research expertise also includes food processing, biofuel and waste management. He holds a number of patents and has published several books and more than 370 papers in international journals and conferences. He earned his master’s and doctoral degrees in chemical engineering from the University of Swansea, Wales, and his bachelor’s degree in chemical engineering at the University of Baghdad.

Luisa F. Cabeza, Ph.D. University of Lleida
Luisa F. Cabeza, Ph.D.

Dr. Cabeza, a professor of industrial engineering at the University of Lleida, Spain, is a leading authority on thermal energy storage. She holds industrial engineering and chemical engineering degrees, an MBA and a doctorate in industrial engineering from the University Ramon Llull in Barcelona, Spain. She is the director of GREA Innovació Concurrent, a research group that is developing thermal energy storage concepts and systems for solar water tanks, HVAC systems, industrial applications and concentrated solar power plants. She has co-written more than 100 papers and published several books on phase change material and thermal energy storage, including "Advances in Thermal Energy Storage Systems: Methods and Applications" (Woodhead Publishing Series in Energy, 2014).


Year Grant
2011 USDA Enhanced Thermal Activity of Vegetable Oil Based Thermal Energy Storage Materials, Dr. William R. Sutterlin, Renewable Alternatives, LLC
2008 NSF SBIR Phase II: Fire-Retardant Phase Change Materials from Fats and Oils, Dr. William R. Sutterlin. Renewable Alternatives, LLC
2007 DOD Extreme Phase Change Materials for Soldier Microclimate Regulation, Dr. William R. Sutterlin, Renewable Alternatives, LLC
2006 NSF SBIR Phase I: Fire-Retardant Phase Change Materials from Fats and Oils, Dr. William R. Sutterlin, Renewable Alternatives, LLC
2005 DOD Extreme Phase Change Materials for Soldier Microclimate Regulation, Dr. William R. Sutterlin, Renewable Alternatives, LLC
2003 USDA SBIR Phase II: Phase Change Materials from Fats and Oils, Dr. William R. Sutterlin, Renewable Alternatives, LLC
2002 USDA SBIR Phase I: Phase Change Materials from Fats and Oils, Dr. William R. Sutterlin, Renewable Alternatives, LLC