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September 12, 2022

Recycling of PIN FR from PC/ABS

Solvent is shown to dissolve the phosphorus FR BDP from PC/ABS, enabling recovery of the PIN FR for recycling.

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Mechanical recycling of PIN FR epoxy

The PIN FR DOPO is shown to achieve fire and mechanical performance, transparency and recyclability in epoxy. The commercial phosphorus PIN FR 9,10-dihydro-9-oxa-10-phosphaphenanthrene 10-oxide (DOPO) was pre-reacted into DGEBA epoxy before curing.

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Polyphosphonate FR for quality cars

pinfa member, FRX Innovations (FRW Polymers), has started supplying PIN FR for use in interiors by a leading German car manufacturer.

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NGOs campaign on FRs in children’s car seats

US environmental health NGO “The Ecology Center” (Michigan) has published analysis of 600 components (fabric, foam, structural plastics) from 25 car seats (3 from the EU, 22 from the USA).

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Substitute brominated FR shows thyroid toxicity

BTBPE = 1, 2-bis (2,4, 6-tribromophenoxy) ethane has been used to substitute the now-banned brominated flame retardant Octa-BDE (listed as POP in 2009).

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Low risk from FRs in dust at vehicle and electronics dismantling sites

Some fifty different FRs were analysed in settled dust from a total of 18 informal e-waste and end-of-life vehicle processing workshops  in Vietnam.

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Studies on phosphorus flame retardants

Infant exposure to organo-phosphorus FRs (OPFRs). A study of 259 children aged 3.5 years and 388 mothers in France (ELFE cohort) found nine OPFRs (out of 15 analysed) in at least one fifth of hair samples.

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July 8, 2022

ECOFRAM 2022

This pinfa Newsletter summarises ECOFRAM 2022, the third International Conference on Eco-Friendly Flame Retardant Additives and Materials, Alès, France, 17-18 May 2022 (postponed from 2020 because of Covid).

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Industry actions for sustainable fire safety

Christian Battenberg, Clariant, presented the company’s objectives of climate impact reduction, the product portfolio sustainability assessment system and the Clariant “Ecotain” label for best-in-class products (pinfa Newsletter n°79). Clariant has fixed the objective to reduce greenhouse gas emissions by 40% for scope 1+2 and by 14% for scope 3 (link) between 2019 to 2030.

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New applications for PIN flame retardants

Sabyasachi Gaan, EMPA Switzerland, presented testing of PIN FRs in reactive extrusion of polyamide. An oligomeric phosphorus PIN flame retardant was embedded in polyamide, by reaction of a phosphorylated vinyl monomer (DVPPO) with the cyclic amine (piperazine) in extrusion of polyamide polymer to fibres, so embedding the resulting phosphorus-nitrogen macromolecules in the polyamide matrix.

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Environment and safety

Jérémie Pourchez, Mines Alès France, presented analysis of nano-particles in fly ash (from offgas filters) and bottom ash, both from laboratory incineration of ethylene vinyl acetate polymer containing nano-minerals: silica, alumina, boehmite, zinc, titanium.

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Innovative flame retardant coatings

Maude Jimenez, UMET Lille University, France, presented investigations of self-stratifying epoxy/silicone coatings, with the aim of achieving railway fire safety requirements.

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Innovative PIN FR application: polyelectrolytes

Jaime Grunlan, Texas A&M University, USA, presented polyelectrolytes as a mode of PIN flame retardant surface application to materials such as textiles or polymers.

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PIN flame retardants for wood and fibres

Adèle Lamandé, CSTB France (national construction technical centre), presented studies of gas emissions from timber laminates under different oxygen concentrations, intended to simulate different fire conditions.

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Bio-based PIN flame retardants

Maxinne Denis, University of Montpellier, France, presented testing of bio-based PIN flame retardants for alkyd resin coatings.

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PIN FRs for bio-based insulation materials

Lily Deborde, LGCGM Rennes University France, summarised work on PIN flame retardant alternatives to boric acid and ammonium salts for hemp fibre thermal insulation products (blown insulation, panels).

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Weathering of PIN flame retardant materials

Sandrine Therias, Institut de Chimie de Clermont Ferrand France, reviewed literature on weathering of PIN flame retarded polymers.

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June 20, 2022

pinfa webinar, 27, 28 and 30 June 2022, 16h – 17h CEST “What are Safe and Sustainable Flame Retardants?”

pinfa webinar, 27, 28 and 30 June 2022, 16h – 17h CEST “What are Safe and Sustainable Flame Retardants?” with Schneider Electric, ChemForward, TCO Development, ChemSec, Cefic.

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EU CPR text consultation

Proposed regulatory text for update of Construction Products Regulation. Prolonged to 12th July. This new Regulation text is likely to considerably modify conditions for validation of CE-marks and so EU market access, impacting fire safety of construction products.

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Canada consults to ban DBDPE and DP

To 28th July 2022: proposed bans of decabromodiphenyl ethane (DBDPE) and Dechlorane Plus (DP), as well as on extension of existing bans on brominated FRs HBCD and PBDEs.

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EU “chemicals restrictions roadmap”

The European Commission has published a “roadmap” of assessment priorities for chemicals for possible restrictions. The Commission states that the roadmap “prioritises group restrictions for the most harmful substances to human health and the environment” as set out in the Green Deal Chemicals Strategy for Sustainability, and will become the basis for multiannual planning under REACH, to be regularly reviewed to ensure flexibility and progress.

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EU biomonitoring conclusions on FRs

HBM4EU conference says data is inadequate for 60+ current use FRs, suggests potential endocrine disrupting concerns. The EU-funded HBM4EU human biomonitoring project (Horizon2020) is coordinated by th...

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Flame retardants, Classification, recycling

Analysis of 69 FRs suggests that 12 (7 halogenated/ATO, 5 PIN) may lead to Classification of plastic wastes, so posing a regulatory obstacle to recycling. In total, 23 out of 69 FRs are identified as...

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ECHA report on nanomaterials End-of-Life

EU report calling for research on recycling and environmental impacts of nano-materials is relevant for PIN FRs. The 130-page report from ECHA (European Chemicals Agency) and EUON (European Union Observatory for Nanomaterials) states that nano-fillers have “potential to contribute to increasing recycling rates of waste and the quality of the recycled products” but on the other hand it is indicated “the environmental and human health impact of nanoparticles has not yet been fully investigated;

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