- Email: [email protected]
New titanium dioxide pigment offers improved masterbatch dispersion
MATERIALS
News
New titanium dioxide pigment offers improved masterbatch dispersion Millennium Chemicals, a Lyondell Company, is launching a new titanium dioxide pigment for the European masterbatch industry. The company says that Tiona® 125 offers a combination of improved dispersion, low volatiles for easier processing at the higher
machine temperatures now used and optimum particle size for greater optical efficiency. Millennium Chemicals says that this performance is achieved through the use of new surface treatment technology and improvements in the manufacturing process.
The new surface treatment is claimed to significantly raise dispersion performance, which enables a considerable reduction in filter screen blockage and film defects, as well as extremely low 'bound' moisture content. The company adds that Tiona 125 has been developed to meet the
demands of masterbatchers looking for ease of dispersion and faster cycle times with optimum opacity levels. Contact: Millennium Chemicals Tel: +1 410 229 8062 Website: www.millenniumchem.com
GE develops dry silane coupling agent for hydrated mineral fillers A dry silane coupling agent has been developed by GE Advanced Materials, Silicones for hydrated mineral fillers in polyolefins and elastomers. The company says that Silquest FR522 MB is a dry silane masterbatch based on Silquest FR-522 silane on porous polymer carriers. Silquest FR-522 MB is said to be a multicomponent coupling agent for halogen-free flame retardant filled polyolefin and elastomeric compounds. The company adds that it allows the use of halogen-free polymers, including polyolefin alloys,
containing up to 70% by weight of hydrated mineral fillers. A key advantage of the coupling agent is claimed to be that the reduction of mechanical properties previously associated with high levels of hydrated minerals is substantially eliminated. The company adds that Silquest FR-522 MB may be used in polyolefins or elastomer compounds containing high levels of aluminium trihydrate or magnesium hydroxide to provide a number of benefits. These include good flame retardancy and electrical
Plastics Additives & Compounding May/June 2005
properties. It is also possible to use untreated hydrated fillers. Improved mechanical properties are also possible, such as higher impact resistance, tensile strength, elongation, heat deformation resistance, flexural strength and Environmental Stress Crack Resistance. In addition, the dispersion of fillers is substantially improved and there is a chemicallyresistant bond between filler and resin. Dripping during burning is low or even absent and the material is said to be easy to handle. There is
18
reduced die drool during cable extrusion and reduced moisture retention during storage. The main areas of application are halogen-free flame retardant insulation and jacketing for wires and cables, as well as extruded profiles and calendered sheets. It is also suitable for extruded electrical conduits. Contact: GE Advanced Materials, Silicones Tel: +41 22 989 2111 Fax: +41 22 989 2393
News
New titanium dioxide pigment offers improved masterbatch dispersion Millennium Chemicals, a Lyondell Company, is launching a new titanium dioxide pigment for the European masterbatch industry. The company says that Tiona® 125 offers a combination of improved dispersion, low volatiles for easier processing at the higher
machine temperatures now used and optimum particle size for greater optical efficiency. Millennium Chemicals says that this performance is achieved through the use of new surface treatment technology and improvements in the manufacturing process.
The new surface treatment is claimed to significantly raise dispersion performance, which enables a considerable reduction in filter screen blockage and film defects, as well as extremely low 'bound' moisture content. The company adds that Tiona 125 has been developed to meet the
demands of masterbatchers looking for ease of dispersion and faster cycle times with optimum opacity levels. Contact: Millennium Chemicals Tel: +1 410 229 8062 Website: www.millenniumchem.com
GE develops dry silane coupling agent for hydrated mineral fillers A dry silane coupling agent has been developed by GE Advanced Materials, Silicones for hydrated mineral fillers in polyolefins and elastomers. The company says that Silquest FR522 MB is a dry silane masterbatch based on Silquest FR-522 silane on porous polymer carriers. Silquest FR-522 MB is said to be a multicomponent coupling agent for halogen-free flame retardant filled polyolefin and elastomeric compounds. The company adds that it allows the use of halogen-free polymers, including polyolefin alloys,
containing up to 70% by weight of hydrated mineral fillers. A key advantage of the coupling agent is claimed to be that the reduction of mechanical properties previously associated with high levels of hydrated minerals is substantially eliminated. The company adds that Silquest FR-522 MB may be used in polyolefins or elastomer compounds containing high levels of aluminium trihydrate or magnesium hydroxide to provide a number of benefits. These include good flame retardancy and electrical
Plastics Additives & Compounding May/June 2005
properties. It is also possible to use untreated hydrated fillers. Improved mechanical properties are also possible, such as higher impact resistance, tensile strength, elongation, heat deformation resistance, flexural strength and Environmental Stress Crack Resistance. In addition, the dispersion of fillers is substantially improved and there is a chemicallyresistant bond between filler and resin. Dripping during burning is low or even absent and the material is said to be easy to handle. There is
18
reduced die drool during cable extrusion and reduced moisture retention during storage. The main areas of application are halogen-free flame retardant insulation and jacketing for wires and cables, as well as extruded profiles and calendered sheets. It is also suitable for extruded electrical conduits. Contact: GE Advanced Materials, Silicones Tel: +41 22 989 2111 Fax: +41 22 989 2393