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Tosaf

PFAS-free additives for the plastics industry

Tosaf, a globally active manufacturer of additives, compounds, and colour masterbatches for the plastics industry, has developed processing aids for the extrusion of polyolefins that do not contain fluoroelastomers. They can be used without restriction in place of conventional products currently affected by the PFAS debate, are suitable for a wide range of film applications, and they meet the requirements of the FDA and EFSA for use in contact with food. While AP9709PE EU provides enhanced rheological properties, AP9711PE EU is the grade of choice if the focus is on optical properties, including clarity and haze.

Advanced masterbatch technology

At Fakuma 2023, Tosaf will be presenting their latest developments in masterbatches for applications ranging from agricultural films to rigid and soft packaging and technical parts on stand B4-4402 in hall B4. For example, Tosaf's new additives for contour-sharp laser marking are also suitable for transparent plastics in a wide range of applications. Also in focus are a new masterbatch carrier system with approval for direct food contact as well as masterbatches to produce light-diffusing elements, for example for covers of LED lights. Adapted to growing sustainability requirements are blowing agents for foamed plastics that help to reduce the ecological footprint, as well as colour and functional masterbatch solutions for compounds containing recycled materials.

Tosaf Fusion on expansion

Tosaf Fusion, developer and manufacturer of customised solutions for compounders and packaging producers, is clearly on course for expansion. The small but dynamic company was founded in 2017 as a subsidiary of Tosaf Compounds Ltd. It now holds a leading position in innovative products such as modifiers for PA, compatibilizers for PP and HFFR cable compounds, as well as tie layers for PE applications in agriculture and packaging. These products complement Tosaf Compounds' comprehensive portfolio, making the company the only one in the world today that can produce both masterbatches and grafted polymers. Due to steadily increasing demand, Tosaf Fusion is currently relocating its production to a larger facility in Israel's Alon Tavor industrial area.

Reducing ecological footprint with foaming agents

With chemical foaming agents for thermoplastic materials and intensive advice on their selection and use, Tosaf helps users meet the urgent demand from society and legislation for greater sustainability. Foamed plastics reduce the consumption of raw materials, which can also offer cost benefits, and their insulating properties can help reduce the use of energy. Sink marks can be avoided to a large extent, minimizing rejects even if there are high demands on surface quality. At the same time, foaming has no effect on recycling behaviour. Hence, the recyclability of the plastics in the materials cycle is maintained.

New masterbatch system for food

A newly developed, universally applicable masterbatch carrier system from Tosaf Color Service now complies with all common food contact requirements. These include the recommendations of the German Federal Institute for Risk Assessment (BfR) as well as the complex and varied regulatory requirements of the USA and China (FDA, China Food Safety Law). Any color and, where applicable, functional and combination masterbatches based on this carrier system can be used across continents without hesitation for any appropriate applications ranging from translucent and opaque rigid and flexible packaging, toys and household items to components for machinery and equipment used in food processing.

Tosaf launches new additive

FR9185PE is a halogen-free flame retardant (HFFR) additive newly developed by Tosaf for crosslinked and non-crosslinked polyethylene foams, to enlarge its extensive portfolio of market-proven products. Even at low concentrations, it helps prevent the spread and acceleration of fire. It thus facilitates compliance with demanding fire protection standards in industries such as construction, pipe insulation, automotive and shipment packaging.

New white masterbatch without TiO2

At K2022 in Düsseldorf, Tosaf will present a series of new white masterbatches with excellent properties in terms of whiteness, colour strength and opacity, which do not contain titanium dioxide (TiO2). The company is thus responding to an increasing number of customers inquiries, since regular white pigment is suspected of being carcinogenic when inhaled in powder form, and because the EU has banned it as a food colourant (E171). Although this decision by the EU does not yet ban the use of titanium dioxide as a pigment in polymers that come into contact with food, there is a growing demand among manufacturers of hard and soft packaging for the food industry, as well as parts of the toys and cosmetics industries, to move to TiO2-free masterbatches in the future.

Light-diffusing masterbatch

Many LED light sources have a problem to create uniform diffused light, resulting in brightness concentrations – so-called "hot spots" – on backlit surfaces. Light-diffusing (LD) masterbatches from Tosaf Color Service effectively prevent this undesirable phenomenon. In extensive laboratory trials, the micro-fillers it contains were optimized with regard to material, refractive index, transparency, geometry and dimensions. As a result, only very small amounts of masterbatch – namely 1-2 % – are needed to effectively scatter the light in originally transparent material, predominantly polymethylmethacrylate (PMMA) and polycarbonate (PC). At the same time, the light transmission and mechanical properties of the base material are largely retained. In addition to color-neutral grades, combinations with specific colorings and other functional properties such as UV stabilizers are available.

Low-emission POM masterbatches

Tosaf Color Service’s color, functional and combination masterbatches for POM are now based on particularly low-emission carrier materials. In addition, the pigments have been optimally selected with regard to their effectiveness. As a result, the low emission data of the starting material – depending on the POM type – are almost fully retained, even after coloring and compounding. The new masterbatches thus help to ensure compliance with the strict specifications of the automotive industry for molded parts, and also with the requirements regarding personnel safety. The emission-optimized masterbatches are suitable for all POM grades. At the customer's request, ongoing applications can also be switched to the new technology.
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