Biocides in Plastics - From Preservation to Hygiene Control

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Brussels, Belgium, 26-27 February 2008
Rapra Conference Proceedings, 2008

Format: Soft-backed, 297 x 210 mm
ISBN: 978-1-84735-067-1

Proceedings from our New International Conference!
Current consumer demand for bacterial-resistant products, global concern over hospital acquired infections such as MRSA, and conditions such as the so-called “sick building syndrome” have done much to promote the rise in biocides in plastics in recent years. As such biocides are now being increasingly used in materials such as PVC, PU, PE and WPC and in low -VOC water-based paints and coatings to prevent fungal and bacterial growth.

However impending environmental regulations both in Europe and abroad present major challenges for suppliers of biocides. The EU’s Biocidal Products Directive (BPD) and the flagship REACH chemicals policy - will force the rationalisation of many product lines, removing a large number of active ingredients from the market and requiring manufacturers to source replacement “green” actives.

It is critical now – perhaps more than ever - to formulate new biocidal blends. With this in mind Smithers Rapra developed the first international conference on Biocides in Plastics: From Preservation to Hygiene Control.

The conference featured case studies from the likes of Arch Chemicals, PolyChem Alloy, Ciba Specialty Chemicals, Sanitised and Thor Specialities as well as a regulatory update from the US EPA. Papers provided insight into many key developments and solutions to the key issues of the biocides sector. These include:

Test methods for plastics: antifungal and antibacterial testing
The harmonization of regulation for biocides for treated articles
How to implement an antimicrobial hygiene concept for appliances
Modelling the end-use of plastic treated articles to support label claims

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Contents

SESSION 1 ADDRESSING THE CHALLENGE AND BASIC EFFICACY TESTING

Paper 1 KEYNOTE PRESENTATION Antimicrobial surfaces: addressing the intended application?
Prof Jo Verran, Manchester Metropolitan University, UK

Paper 2 The Development of an ISO standard for measuring the antibacterial activity of non-porous materials
Dr Shigeo Imai, SIAA, Japan

Paper 3 Performance testing of biocides–a review of the test methods in common use
Dave Ogden, Arch UK Biocides Ltd, UK

Paper 4 Preservation and testing of liquid polymer dispersions
John Gillatt, Thor SpeciaIlties UK Ltd, UK

SESSION 2 REGUALTIONS OF BIOCIDES

Paper 5 Regulatory update on the BPD and REACH and their impact on the biocides sector
Hiltrud Dornieden, Ciba Inc, Switzerland

Paper 6 EPA’s role in regulating antimicrobials in plastics
Frank Sanders, US EPA, USA

SESSION 3 THE IMPACT OF FORMUALATION DESIGN AND MICROORGANISMS ON PLASTICS

Paper 7 The use of high throughput testing matrices of optimising the design of antibacterial plastics
Dr Thorsten Bechert, QualityLabs BT, Germany

Paper 8 Biodeterioration and testing of wood/plastic composites
Dr Ina Stephan, BAM, Germany

Paper 9 Survival of microorganisms on inert surfaces: biotransfer potential and modeling in vitro
Dr. Paul Airey, Manchester Metropolitan University, UK

SESSION 4 ADRESSING THE FUNTIONALITY OF TREATED ARTICLES

Paper 10 The harmonisation of the regulation of biocides for treated articles – the OECD initiative
Malcolm Greenhalgh, MGCL & TechniTex Faraday, UK

Paper 11 Modelling the end-use of plastic treated articles to support label claims
Pete Askew, IMSL, UK

Paper 12 Antimicrobials selection criterion
Dr Chakra Gupta, PolyChem Alloy Inc, USA

Paper 13 Nano-particles in plastics to reach antimicrobial functionality and system improvements
Dipl-Chem. Helmut Schmid, Fraunhofer-Institut Chemische Technologie (ICT), Germany

SESSION 5 THE IMPACT OF TREATED ARTICLES IN REAL-LIFE SITUATIONS

Paper 14 BioCote® and the application of silver-based biocides in healthcare settings
Matthew Harte, BioCote, UK

Paper 15 How to implement an antimicrobial hygiene concept for appliances
Heinz Studer, SANITIZED AG, Switzerland

Paper 16 Microbial biofilm inhibition by tetramethyldithiooxamide and specific test methods for biofilm inhibiting activity
Svoboda V Tabakova & Prof Dr Vera V Mircheva, Bulgarian Academy of Sciences, Bulgaria

SESSION 6 NEW APPROACHES TO THE CONTROL OF MICROORGANISMS USING PLASTICS

Paper 17 Protein-based bioplastics with antimicrobial activity for potential applications in food packaging and water pollution control
Prof Pedro Partal, I. Martinez & C. Gallegos, Universidad de Huelva; A Guerrero, Universidad de Seville & Y. Vergara, OX-Compania de Tratamiento de Agus SL, Spain

Paper 18 Antimicrobial materials for coatings: novel polymers and polymer/silver nanocomposites
Ayusman Sen, The Pennsylvania State University, USA

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