December I996
Additives for Polymers
such as Ultranox 626 solid and Weston 399 liquid types.
region under laser light from scanners or detectors (and are invisible to the naked eye).
Anticipating strongly-growing demand as a result of excellent results fi-om laboratory and plant-scale trials worldwide, GE Specialty Chemicals is building a new flexible phosphite plant in Morgantown, West Virginia, due to start production at the beginning of 1997 with full capacity in 1998.
The NIRF-based inks can be used on a variety of substrates, white or coloured (especially where invisible coding will enhance aesthetic appeal or save space on labelling. Applications include packaging for CDs, audio tapes, videotapes, pharmaceuticals and cosmetics and systems for identification, security, tagging and inventory control.
The company has also commissioned a new blending facility in Europe, at Bergen op Zoom, The Netherlands, to meet increased demand for its prepared solid blends of primary and secondary antioxidants, reports European Commercial Leader Roberto Robotti. Solid blends are offered in both standard and custom configurations, containing a combination of phosphite antioxidant and a variety of primary phenolic antioxidants, in various ratios. Custom blends may contain antioxidants, neutralisers, HALS, UL light stabilisers, processing aids and other additives, as required, in powders and low dust freeflowing pellets and granules. Contact: GE Specialty Chemicals Inc, PO Box 1868, 501 Avery Street, Parkersburg, WV 26102-1868, USA; tel: + I-304 424 5698
Near-infrared fluorescents open new possibilities in bar coding Aninvisible bar code system, using inks with novel compositions formulated on nearinfrared fluorophores (NIRFs), has been demonstrated by Eastman Chemical. At the ScanTech show in Chicago (November 6-8) the company introduced the system, which is claimed to be more reliable than other invisible bar code systems using either ultraviolet or infrared absorption-based materials, because it is less prone to background interference. It has been demonstrated to work at commercial printing and scanning speeds. The technology relies on the behaviour of NIRFs, which fluoresce in the near-infrared 6
Contact: Eastman Chemical Co, Kingsport, TN37662, USA; tel: +-l-615 229 3149
Masterbatch use confirms claims for TiO, petformance Claims of good performance at elevated temperature for a new Tioxide pigment have been confirmed by masterbatch producer Transcolor $4, which adopted it at the end of 1995. General manager Eduardo Altable reports that Transcolor customers are very pleased with the pigment, Tioxide TR27, because it does not cause die build-up or lacing in high temperature processing. The pigment was developed especially for the film and packaging industry, in close partnership with masterbatch producers. Its mineral and organic coating is designed to minimise emission of volatiles, which can contribute to lacing. Other benefits include high levels of brightness, colour and opacity. Contact: Tioxide Group Ltd, 137-143 Hammersmith Road, London W14 OQL, UK; tel: +44-I71 331 7746; fax: +44-171 331 7711
PATENTS CA2127721 Rigid propylene-based compound Showa Denko KK Priority date: 12 May 1994 For automobile and packaging applications, a propylene-based compound with a xyleneextended insolvent part with specified isotactic pentadiene ratio and average chain length has good rigidity and heat-resistance. 01996
Elsevier Science