Download - BASF introduces yellow pigment for PP fibres
MATERIALS
Cabot expands range of masterbatches for filmCabot Corp has increased its range of additivemasterbatches with a number of new slip, anti-block and combination slip/anti-block gradesdesigned to meet the different requirements offilm processors.
Three slip grades – Plasadd® PE9020, PE9041and PE9166 – have been developed to reduce thenatural tackiness of polyolefin polymers and con-sequently increase their processability. They incor-porate oleamides and erucamides in differentquantities to provide a choice of migration speedsand slip performance duration, which enablesprocessors to find a grade to suit their manufactur-ing processes. All the products comply with foodcontact regulations, and some are particularly suit-able for high-temperature processing, Cabot says.
Three new anti-block additives that reduceadhesion between film layers are also available.Plasadd PE9007 and PE9896 contain differentlevels of natural silica, allowing addition ratesbetween 1% and 5% to be used to suit specificapplications. Plasadd PE9050 uses synthetic sil-ica to provide superior anti-block performancewithout affecting film clarity.
Cabot has also developed three grades that pro-vide slip and anti-block performance in a singleproduct. Plasadd PE8741 is primarily designedas an anti-block agent but also delivers someslip performance, while PE9172 and PE9174are principally slip masterbatches with someanti-block properties.
Contact: Gérard Romainville, Cabot Corp,Interleuvenlaan 5, B-3001, Leuven, Belgium;tel: +32-1639-2400; fax: +32-1639-2444; e-mail: [email protected];URL: www.cabot-corp.com
BASF introduces yellow pigment for PP fibresBASF Performance Chemicals has introducedPaliotol® Yellow K 0955, a transparent quinoph-thalone pigment for spin-dyeing polypropylene(PP) fibres that delivers a brilliant yellow colour.
Only pigments meeting the highest quality stan-dards are suited for the mass coloration of PPfibres, BASF says. Shade, brilliance and colourstrength are crucial for this application.Furthermore, ease of dispersion and a low filterpressure value are important prerequisites forsmooth processing. The newly developed yel-low pigment meets all these demands, deliver-ing high colour strength and outstanding bril-liance, according to the manufacturer. It pro-vides a clean, greenish yellow shade, which isclaimed to give colourists more room and flexi-bility in colour-matching, is easy to disperse andhas a very low filter pressure value. The newPaliotol Yellow K 0955 is also available as amono-pigment concentrate for the fibres indus-try, Eupolen® PP Yellow 09-5505.
Contact: BASF AG, Carl-Bosch-Straße 38, D-67065 Ludwigshafen, Germany; tel: +49-621-60-0; fax: +49-621-60-42525; e-mail: [email protected]; URL: www.basf.com/pigment
Ciba launches polymer modifier for PP nonwovensCiba Specialty Chemicals is launching CibaIrgatec® CR 76, a new polymer modifier forpolypropylene (PP) nonwoven fabrics used, forexample, in diapers, hygiene products, cleaningwipes and filtration products.
According to Ciba, Irgatec CR 76 brings a newstandard to nonwoven fabrics, allowing the pro-ducer to use standard PP spunbond grades orrecycled granules from fibre scrap to design melt-blown nonwoven fabrics that have significantlyenhanced liquid barrier properties and mechani-cal properties (for example, tensile strength) overexisting available products. The innovative tech-nology of the unique peroxide-free polymer mod-ifier reduces the viscosity of the melt, therebycontrolling the degradation of the molecularweight of the polypropylene during spinning.Additionally it narrows the molecular weight dis-tribution, bringing the advantage of better spin-ability and enhanced nonwoven fabric perform-ance. The single filaments of the meltblowns arethinner, stronger and more flexible than those ofexisting technology, Ciba claims.
The safety properties of Irgatec CR 76, both forproduct handling during production and in end use,
Additives for Polymers July2004
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