PIN synergists to improve PIN FR performanceKathrin Lehmann

Kathrin Lehmann, Evonik, summarised the advantages of organomodified siloxanes (OMS) as functional PIN synergists. Inclusion of specific functional groups onto the ends or sides or siloxane molecular chains enables either full polymer compatibility, or to ensure that part of the OMS molecule embeds in the polymer whilst part remains outside giving interface properties.

tesa performance adhesivesLim

Cai Rong Lim, tesa, is developing new performance adhesive solutions for industrial and professional customers as well as end consumers. Applications are developed for industrial sectors such as automotive, electronics, printing and paper, and building supplies.

Inorganic flame retardant developmentsDesseix PolyOne

Maryline Desseix, Polyone (pinfa member), presented development and testing of innovative solutions to combine PIN flame retardant performance in polymers with sustainability. Inorganic PIN FRs, such as ATH (aluminium trihydrate) and MDH (magnesium hydroxide) offer positive health and environment profiles, and are water soluble, which ensures that they are not bioaccumulative.

High performance PIN FR masterbatchesHannah

Mark Hannah, Gabriel-Chemie, underlines the need for stringent fire safety regulation or specifications to move the market. High fire performance masterbatches are today available, but at a cost. A good example is the sports stadium seating market, where stringent FIFA standards for fire safety of seats and installations mean that we can successfully offer state-of the art flame retardant solutions.

Innovative PIN FR systemJan Pleun Lens

Jan-Pleun Lens, FRX Polymers (pinfa member), presented new applications of the company’s phosphonate PIN FR technologies, available as polymers, oligomers with tailored functional end-groups, and polycarbonate co-polymers. Developing applications include in polyesters (film and fibres, including synthetic hair)), polycarbonates, thermoplastic polyurethanes, and thermosets like epoxies and polyurethanes 

pinfa President, Adrian Beard, Clariant,CREPIM report cover

noted that pinfa is not “campaigning” for the introduction of smoke toxicity requirements in regulation. In the current reassessment of the EU Construction Products Regulation, pinfa has submitted that “the EU should also continue to develop harmonised fire safety, smoke and sustainability standards to address the risks of modern constructions and the challenges of the circular economy” without referring to “toxicity” (see pinfa Newsletter n°84).

Discussion session on smoke toxicityCapon AMI 2017

A discussion session with conference participants, on smoke toxicity, was organised by AMI and pinfa following the CREPIM report presentation.
Participants underlined:
• Smoke is always toxic. Previous major studies have concluded that it is not meaningful to attempt to differentiate low smoke materials, for example the University of Pittsburgh methods developed for New York State were never implemented into regulation (see

Smoke toxicityGauillaume Capon

Guillaume Capon, CREPIM (fire research and testing, France), presented the initial review of published scientific data on whether PIN flame retardants impact the toxicity of smoke emissions, prepared for pinfa (see pinfa Newsletter n°85). 135 relevant scientific articles were identified after a thorough search of scientific publications from the last 30 years, with 22 being identified as containing evidence or data.

Günter Beyer, Kabelwerk EupenGünter Beyer 2

Opened the conference by identifying flame retardant development trends from an overview of scientific publications on flame retardants. All the trends noted concern PIN fire safety. He noted the increase in publications from China, now over 50% of scientific articles and patents. He highlighted 10 recent scientific papers, mostly addressing improving performance of LS0H (Low Smoke Zero Halogen) formulations.

The 12th AMI Fire resistance in Plastics ConferenceAMI

The 12th AMI Fire resistance in Plastics Conference, Cologne, 6-7 December 2017, brought together over 160 participants, mainly from the polymer, compounding and plastics additives industries.