nubiola unveils new ultramarine blue range

1
Additives for Polymers April 2007 2 MATERIALS Nubiola unveils new ultramarine blue range Nubiola Inorganic Pigments has developed Nubiperf FCP, a new ultramarine blue pigment range for plastics applications. Based on a novel technology developed in recent years by the company, the range is said to be ideal for any application that requires very low odour and taste standards. Due to the manufacturing method, the amount of sulphur compounds attached to the final 3D ultramarine blue structure is reduced com- pared to existing ultramarines, providing an “extraordinarily low and safe profile regarding potential organoleptic issues”, Nubiola says. In chemical evaluation tests involving heat- ing the pigments for an hour at 70°C, three sulphur compounds were found in conven- tional ultramarine blues at a level of around 400 ppb; however, for Nubiperf FCP products less than 5 ppb of sulphur compounds were detected, Nubiola reports. In a further orga- noleptic evaluation where the pigments were heated for two hours at 100°C, 80% of a panel of nine experts rated the vapours produced by Nubiperf FCP products as ‘acceptable, neutral or weak unpleasantness’, with no sulphurous odour detected. In contrast, the vapours from conventional ultramarine blues were classed as ‘unpleasant’ to ‘disturbing’. Applications for Nubiperf FCP products include: food packaging; cosmetic packaging; medi- cal packaging and devices; interior automotive parts; and plastic formulations containing com- ponents that are sensitive to catalytic reactions in the presence of sulphur derivatives. Contact: Nubiola Inorganic Pigments, SL, Gran Via de les Corts Catalanes, 648, 08010 Barcelona, Spain; tel: +34-93-343-5750; fax: +34-93-343-5771; URL: www.nubiola.com Dyneon develops anti-dripping additive Fluoropolymer producer Dyneon has launched anti-dripping melt modifier Dyneon™ MM 5935 EF for flame-retardant thermoplastics, the first in a planned family of innovative melt modifiers. According to the company, the new additive meets the requirements of the UL 94 vertical burn test for flame-retardant thermo- plastics typically used in electronic and electri- cal applications. The product is said to be easier to handle and process than the standard polytetrafluoroethyl- ene (PTFE) fine powders currently used. It can be stored above 19°C without premature fibril- lation, meaning it does not require refrigeration during storing and transportation. Like standard PTFE fine powders, Dyneon MM 5935 EF forms fibrils of 50 nm thickness under condi- tions of high shear. These stressed fibrils create a physical network frozen in the plastic. When the thermoplastic melts or burns, the fibrils relax causing contraction and suppressing drip- ping. According to Dyneon, the new product has free-flowing characteristics, giving excellent dispersion in compounds and resins of acrylo- nitrile butadiene styrene, polybutylene tereph- thalate, polyethylene terephthalate, high-impact polystyrene, polycarbonate, polyethylene and polypropylene, amongst others. This disper- sion enables the use of the lower concentrations needed for reliable anti-dripping. Contact: Dyneon LLC, 6744 33rd Street North, Oakdale, MN 55128, USA; tel: +1-651-733- 5353; fax: +1-651-737-7686; URL: www.dyne- on.com Danisco introduces antifogging additives for PP film Danisco Emulsifiers reports that it has devel- oped polyglycerol ester additives that show good performance as antifogging agents for use in polypropylene (PP) film. Produced from polymerized glycerol (mostly the mono- to tetraglycerol moieties) esterified with edible, refined fatty acids, the agents have uncondi- tional food contact approval and are targeted at applications in the rapidly growing film packag- ing market for PP. While antifogging agents for polyethylene have been available for many years, finding an anti- fogging agent for PP that is also approved for food contact use has been more challenging

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Page 1: Nubiola unveils new ultramarine blue range

Additives for Polymers April 2007

2

MATERIALS

Nubiola unveils new ultramarine blue rangeNubiola Inorganic Pigments has developed Nubiperf FCP, a new ultramarine blue pigment range for plastics applications. Based on a novel technology developed in recent years by the company, the range is said to be ideal for any application that requires very low odour and taste standards.

Due to the manufacturing method, the amount of sulphur compounds attached to the final 3D ultramarine blue structure is reduced com-pared to existing ultramarines, providing an “extraordinarily low and safe profile regarding potential organoleptic issues”, Nubiola says. In chemical evaluation tests involving heat-ing the pigments for an hour at 70°C, three sulphur compounds were found in conven-tional ultramarine blues at a level of around 400 ppb; however, for Nubiperf FCP products less than 5 ppb of sulphur compounds were detected, Nubiola reports. In a further orga-noleptic evaluation where the pigments were heated for two hours at 100°C, 80% of a panel of nine experts rated the vapours produced by Nubiperf FCP products as ‘acceptable, neutral or weak unpleasantness’, with no sulphurous odour detected. In contrast, the vapours from conventional ultramarine blues were classed as ‘unpleasant’ to ‘disturbing’.

Applications for Nubiperf FCP products include: food packaging; cosmetic packaging; medi-cal packaging and devices; interior automotive parts; and plastic formulations containing com-ponents that are sensitive to catalytic reactions in the presence of sulphur derivatives.

Contact: Nubiola Inorganic Pigments, SL, Gran Via de les Corts Catalanes, 648, 08010 Barcelona, Spain; tel: +34-93-343-5750; fax: +34-93-343-5771; URL: www.nubiola.com

Dyneon develops anti-dripping additive Fluoropolymer producer Dyneon has launched anti-dripping melt modifier Dyneon™ MM

5935 EF for flame-retardant thermoplastics, the first in a planned family of innovative melt modifiers. According to the company, the new additive meets the requirements of the UL 94 vertical burn test for flame-retardant thermo-plastics typically used in electronic and electri-cal applications.

The product is said to be easier to handle and process than the standard polytetrafluoroethyl-ene (PTFE) fine powders currently used. It can be stored above 19°C without premature fibril-lation, meaning it does not require refrigeration during storing and transportation. Like standard PTFE fine powders, Dyneon MM 5935 EF forms fibrils of 50 nm thickness under condi-tions of high shear. These stressed fibrils create a physical network frozen in the plastic. When the thermoplastic melts or burns, the fibrils relax causing contraction and suppressing drip-ping. According to Dyneon, the new product has free-flowing characteristics, giving excellent dispersion in compounds and resins of acrylo-nitrile butadiene styrene, polybutylene tereph-thalate, polyethylene terephthalate, high-impact polystyrene, polycarbonate, polyethylene and polypropylene, amongst others. This disper-sion enables the use of the lower concentrations needed for reliable anti-dripping.

Contact: Dyneon LLC, 6744 33rd Street North, Oakdale, MN 55128, USA; tel: +1-651-733-5353; fax: +1-651-737-7686; URL: www.dyne-on.com

Danisco introduces antifogging additives for PP film Danisco Emulsifiers reports that it has devel-oped polyglycerol ester additives that show good performance as antifogging agents for use in polypropylene (PP) film. Produced from polymerized glycerol (mostly the mono- to tetraglycerol moieties) esterified with edible, refined fatty acids, the agents have uncondi-tional food contact approval and are targeted at applications in the rapidly growing film packag-ing market for PP.

While antifogging agents for polyethylene have been available for many years, finding an anti-fogging agent for PP that is also approved for food contact use has been more challenging