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January 31, 2022

Casein-based PIN FRs for cotton

Caseins are natural phosphorus-rich proteins, making up around 80% of milk protein. Casein was hydrolysed using acid, to give free amino groups, then reacted with phosphonic acid, formaldehyde and urea, to give a phosphorus – nitrogen bio-based PIN FR.

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Phosphorus-modified coffee waste

Coffee wastes showed some fire performance effect in epoxy, and better effect if loaded with phosphorus.

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Non-Halogenated FR Handbook

The 2nd Edition, editor Alex Morgan, updated from 2014, with 600 pages, details different PIN FR technologies and trends.

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US lists ATO as “reasonably anticipated to be a human carcinogen”.

The 15th Report on Carcinogens of the US Department of Health and Human Services adds antimony trioxide, as one of eight further substances to the 248 already known or anticipated to cause cancer.

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January 10, 2022

Solutions for new transport fire challenges

pinfa has published a 50-page brochure detailing FR applications for materials in tomorrow’s transport vehicles: airplanes, ships, trains, buses, and cars.

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EU consultation on digital chemical labelling

Public and stakeholder questionnaire on how to provide online information, via labels, to consumers for chemical products such as, detergents, fertilisers and “chemical products, such as glues, paints, solvents, lamp oils”.

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General Product Safety Directive update

The Commission proposal centres on online sales, enforcement and recalls, and new technologies: fire is not mentioned. The General Product Safety Directive (GPSD 2001/95) will become a “Regulation”, making it more directly applicable.

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EU consultation on POPs in recycling

Proposed “POP” Regulation update will reduce limits for certain chlorinated and certain FRs in recycled wastes. Consultation is open to 23rd December 2021.

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Canada consultation on P-ester FRs

Screening risk assessment proposes regulatory action on TEP and IPP (aryl organophosphate FRs) in foams. The draft screening assessment, open for comment and for input of information to 5th January 2022, covers nine aryl organophosphate (phosphate ester) PIN FRs and one brominated FRs

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UL points to increasing home fire risks

Underwriters Laboratories expert says US fire deaths are increasing with changing design and content of homes.

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NFPA US Fire Loss Report 2020

Numbers of fires and of fire casualties in the USA are approximately stable since around 2010, with some 1.4 million fires, 3 500 civilian fire deaths, 5 200 reported civilian fire injuries and nearly US$22 billion fire damage in 2020.

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Insurers cautious on building cladding

One third of UK underwriters are willing to cover fire safety risks in building works to replace defective cladding, and nearly all of the remaining two thirds offer only partial coverage

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New UK tax to fund cladding fire safety

A new 4% yearly tax property developers’ profits > 25 M£ will fund building fire safety remediation for the coming decade.

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E-scooters banned for fire risks

Transport for London (TfL) has banned electric scooters on buses and the underground because of fire risks for batteries. This follows a fire on a tube train (Parsons Green, 1/11/21), which caused the train to be evacuated and where the scooter continued to burn after removing it onto the platform, and a fire in a scooter in lost property.

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Silsesquioxane synergist for PIN FR

1% POSS significantly improved fire performance achieved by a phosphorus – nitrogen intumescent FR in polypropylene. Nano- octavinyl POSS (polyhedral oligomeric silsesquioxane) was supplied by Zhengzhou Alfa.

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Flame retardants for battery electrolytes

Flame retardants can reduce the fire risk of the liquid carbonate-based electrolytes in lithium-ion batteries. Two PIN flame retardants (phenoxycylophosphazene, melamine phosphate) and tris (2-chloropropyl) phosphate were tested in a battery electrolyte consisting of 1M LiPF6 dissolved in 1:1:1 ethylene carbonate – dimethyl carbonate – diethyl carbonate.

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Novel PIN additives reduce smoke toxicity

Carbon microspheres modified with molybdenum reduced smoke and carbon monoxide emission from TPU polyurethane.

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PIN FRs showed effective in particle board

An ATH – APP based PIN FR system reduced heat loss and smoke emission from wood – polyester particleboard. The particleboard was produced by compression molding of sawdust with polyester resin, after treating the sawdust with sodium hydroxide to improve compatibility.

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Recycled PIN FRs from flue gas cleaning

Magnesium and aluminium minerals from coal power plant flue gas scrubbing can be recycled as PIN flame retardants. The 1 400 MW coal power plant, Nantong, Jiangsu, China, operates lime/gypsum flue gas desulphurisation (FGD), with an objective of zero liquid discharge.

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PIN FRs reduce smoke and toxicity

APP with bio-based cobalt phytate reduce heat release, smoke production, density and toxicity from polyurethane foam. The recognised workhorse PIN flame retardant, ammonium polyphosphate (APP) was dosed at 33% loading in polyurethane rigid foam during foaming reaction, and at 27% with 6% cobalt phytate (a commercially available metal salt of bio-sourced phytate, a phosphorus-rich molecule found in plant seeds).

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Study suggests PBDEs fed to mother mice can cause brain modifications in offspring

Penta-BDE was fed to mother mice at 0.4 mg/kg body weight per day (orders of magnitude higher than general human population exposure). PBDEs were transferred to offspring both in utero and in lactatio...

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Leaching of FRs from recycled ABS plastic in birds’ digestive fluids

Recycled ABS was obtained from a plastic producer in China. Levels of individual FRs analysed in the ABS were highest for BTBPE at 1.8 mg/kg, with DecaBDE (BDE 209), several other brominated FRs and T...

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November 30, 2021

pinfa launches new report on innovative and sustainable flame retardant solutions for transportation

Brussels 30 November – Designers, manufacturers and operators of different forms of transportation are constantly trying to strike the right balance to meet energy reduction requirements as well as...

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November 16, 2021

European Fire Safety Week meets FRiP

pinfa online worldwide event, on fire safety of green energies, from AMI Fire Resistance in Plastics Düsseldorf, 1st December 2021, 16h – 17h30 CET. Speakers will include the US National Fire Prote...

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