While introducing the general properties of PVC suspension resin that make it unique for processors, the speaker will discuss why PVC formulations can get complicated and present so many options for optimized processing and customization by application. The focus will mostly revolve around suspension PVC for rigid vinyl applications, but touch upon some basics of plasticized or flexible vinyl as well. The speaker will talk about gelation theory, why lubricant balance is important and how different additives can influence rheology, mechanical performance, and even weatherability. The talk will be an introduction to PVC overall but also a lead-in for the next workshop, an introduction to acrylic impact modifiers and core-shell modifier chemistry.
Kevin Yocca has been working as a materials scientist and polymer engineer in the plastics industry since 2008. He has completed projects for plastic materials including acrylic copolymers, biorenewable plastics, and PVC along with the additives for the respective resin types. Kevin’s research has largely focused on PVC where he has experience with acrylic additives, organotin stabilizers, and PVC lubricants. Kevin is a graduate of Penn State University and the University of Minnesota.
His professional experience is as follows:
Arkema, Inc., King of Prussia, PA. 2010 – 2012, 2014 to present. Continuing his career with Arkema in technical service and R&D, Kevin focused on new acrylic additives for cellular PVC and rigid PVC profiles and additives for PLA and bioplastics. Kevin helped commercialize new high molecular weight process aids for foamed PVC, high efficiency impact modifiers for rigid PVC, and helped to develop new PVC matting agent technology. In January 2021, Kevin took on the role of Global Market Manager in Building and Construction for Plastics Additives responsible for identifying unmet market needs and driving commercial development of new technologies in B&C applications globally.
PMC Group (PMC Organometallix), Lansdale, PA. 2012 – 2014. Technical Service Manager helping PVC customers with organotin stabilizers and lubricants. Kevin was responsible for the transition of the legacy Arkema and Rohm and Haas organotin stabilizer technical service and products to PMC Group through acquisition. Kevin designed and assembled PMC’s new Center for Vinyl Innovation, a laboratory in Lansdale, PA, centering on serving the PVC industry for new product development and customer technical service.
Rohm and Haas Co. Spring House, PA. 2008 – 2009. Kevin began his career with Rohm and Haas in the plastics additives area responsible for acrylic additives research in acrylic resins, rigid PVC, and acrylic additives for PLA and bioplastics.
University of Minnesota, Twin Cities Campus, MN; September 2007
M.S. in Materials Science and Engineering
Thesis Topic: Rheology of and Capillary Electrophoresis in Soft F127 Gels
Pennsylvania State University, University Park, PA; May 2005 B.S. in Materials Science and Engineering
Polymer Science and Engineering Option
Presentations to the Industry