Antistatic Additives- Migrating and Non- Migrating

Karlheinz Hausmann

DuPont Packaging and Industrial Polymers
PO Box 50, CH-1218 Le Grand Saconnex, Switzerland
Tel: +41 2271 76995 Fax: +41 2271 76688

Biography

Dr Karlheinz Hausmann, Research and Technology Fellowwith DuPont de Nemours International SA is holding a doctoral degree in Material Science from the Swiss Federal Institute of Technology (EPFL) in Lausanne, Switzerland and  has more than  18 years of experience in ethylene copolymers. He joined DuPont in 1987 and has been in a number of R&D and Technical Development assignments. Currently he is part of the P&IP Technical Organisation in Meyrin near Geneva, Switzerland and specialist for polymer modification and compatibilisation. He is also  supporting, among other projects, the  DuPont Cosmetic Solutions Business, where he holds the function of Global Technology Coordinator and is leading the technical developments on biopolymers for DuPont Packaging and Industrial Polymers in Europe.

Abstract

After a brief overview of  the different antistatic agents (migrating and nonmigrating antistatic agents)  we are focusing  on Entira™ AS, a novel permanent polyolefin based polymeric nonmigrating antistatic agent for polyolefines such as Polyethylene and Polypropylene which can be used in various potential applications of which pharma and medical packaging is one.
Static decay time and surface resistivity will be given as measure of antistatic properties.
We will discuss recent findings in terms of processing and saleability.
We will furthermore show that while using matrix polymers with high crystallinity and low density it is possible to overcome deficiencies in sealability that can arise from blending polymeric antistatic agents with polyolefines. In order to overcome saleability issues we will highlight also the use of this antistatic agent in a hidden layer of a multilayer structure. This concept allows maintaining low static decay time and hence low dust attraction while showing higher surface resistivity values than when used as an outer layer of a multilayer structure.
New findings in the area of styrenic polymers will be highlighted as an example for future work.