Ticona introduces fine UHMW-PE powders as functional additives

Ticona introduces fine UHMW-PE powders as functional additives

November 2001 Contact: Great Lakes Chemical Carp, PO Box 2200, 1 Greut Lakes Boulevard, West Lqfa_vette, Indianapolis, IN 47906.5394, USA; tel: +I317...

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November 2001

Contact: Great Lakes Chemical Carp, PO Box 2200, 1 Greut Lakes Boulevard, West Lqfa_vette, Indianapolis, IN 47906.5394, USA; tel: +I317-715-3000; .fax: +I-76.5-497-6316; URL: nww.pa.greatlakes.com

Ticona introduces fine UHMW-PE powders as functional additives Ticona has introduced fine powder grades of ultra-high molecular weight polyethylene (UHMW-PE) for use as performance additives in plastics, rubbers, paints, coatings, sealants and other materials. GUR@ MicroPowder grades have average particle sizes ranging from 30 to 60 microns. Ticona says the products enhance abrasion and mar resistance, coefficient of friction (COF), chemical resistance, impact strength and other mechanical properties. Their action is similar to that of fluoropolymer powder additives but they offer better protection against scratching. Used as an additive for plastics, GUR8 MicroPowders offer better slip, abrasion resistance and texture. For rubbers the benefits include low COF and improved thermal properties, impact strength and abrasion resistance. Coatings and paints gain improved surface texture, wear resistance and gloss reduction, the company says. The grade with an average particle size of 30 microns has a specially engineered particle morphology that creates a unique light scattering effect when used as a matting agent in coatings. The 60-micron grade has smooth, relatively spherical particles. Both grades disperse and bond well in many matrices. Ticona says the powders need no additional micronizing and can be dispersed with standard mixing equipment, usually at concentrations of 3 to 10 wt%. They also withstand high-intensity mixing with minimum particle deformation. The GUR@ powders do not absorb moisture, and have an effective thermal range of -265 to +9O”C. They also have extended deformation resistance under low mechanical load, even above their melting point (135°C) which can be important in applications such as coatings cured at high-temperature.

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In other company news, David N. Weidman has been appointed COO of Celanese AG as of 1 January 2002, with responsibility for Celanese Chemicals and Ticona Technical Polymers. From the same date, Stefan Sommer, currently COO of Ticona, becomes CEO of the technical polymers business. Contact: Ticona GmbH, Werk Ruhrchemie, Postfach 13 01 60, D-46128 Oberhausen, Germany; tel: +49-208-693-2837; .fax: +49208-693-2039; URL: t~ww.ticona.com

Chroma lnjecta introduces new transparent colours Chroma Injecta Color Systems of McHenry, IL, USA, has introduced a series of new transparent colours for thermoplastics. The company says the colours are suitable for use in a wide range of resins, including polypropylene, polystyrene, acrylic, ABS, polyethylene and PET. Low usage rates, which are normally less than 1% and can be as low as 0.5%, are an additional advantage, according to Chroma. The new liquid colours give a clear, clean, sparkling appearance in applications such as personal care, housewares and plastic bottles. Chroma Injecta Color Systems was established in 1999 when Chroma Corp acquired Morton International Inc’s liquid colorants division Injecta Color. The company specializes in the manufacture of liquid colorants for the thermoplastics industry. Contact: Chroma Corp, 3900 Dayton St, McHenry IL 600.50-837X USA: tel: +I-81.5385-8100; jl?x. +I-81.5-385-1518; e-mail. chroma@,chromacolors.com

BASF exhibits novelty blue pigment Described as a ‘trade-fair novelty’, BASF introduced a new low-warpage copper phthalocyanine blue pigment for colouring plastics at the K 200 1 show. Conventional copper phthalocyanine blues adversely affect the dimensional stability of PE-HD injection mouldings and hence their processing and functional properties. BASF claims its new Heliogen@ Blue K 6915 has no effect on the warpage of PE. The