Borclear - PP - Borealis AG

Kunststoffe international, 2005-11-21, General-purpose Plastics: Appearance Ever More Important
...xample. Grade PPR 3221 is suitable for transparent bottles produced by blow moulding; it can be processed over a broad range of temperatures and is noted for its exceptional transparency and surface gloss, even if extruded at low temperatures. Borclear and Borsoft are new PP grades from Borealis, which now permit PP blown films to compete with PE products (Fig.2). These grades are transparent and superior to PE in terms of their tactile properties and mechanical strength. Exxon's PP5122E1 ...

Kunststoffe international, 2005-11-21, Innovations Today and Tomorrow: Polypropylene for Flexible Packaging
... Typical examples are special films for labels (Fig. 5), food packs for cheese, snacks and cake, and the substitution of cellophane in the twist-film segment for sweet, pill and confectionery packs. Finally, the development of the new Borclear C3/C4 polymers, copolymers and terpolymers has resulted in a well-balanced combination of properties, ranging from excellent optical characteristics and heat-sealing properties to outstanding rigidity [6]. This has led to significant economic benefits in ...

Kunststoffe international, 2005-11-21, Polymer Design and Modification: Polypropylene (PP)
...n the medical field, transparent PP bags for fluids are increasingly replacing glass bottles and PVC bags. In the area of blown film production, two innovations in particular are capturing attention: The two statistical copolymers Borclear RB707CF (Borealis) and Clyrell RC1314 (Basell) represent something new and exceed known processability limits on conventional blown film equipment with an MFR of approx. 2g/10min (Fig. 6). The optical and mechanical properties are excellent. Film made from th...

Kunststoffe international, 2005-11-21, Polypropylene (PP)
... nutritional and dialysis liquids; title photo). Finally, new random copolymers with butene (C4) as a co-monomer provide glass-clear films with high gloss, optimum organoleptics and very good sealing performance (Borclear from Borealis or Clyrell from Basell). New applications for these materials include bread-packaging film for significantly faster cycles (+30%) as well as metallised film exhibiting the highest possible purity and metal adhesion. Requirements are Rising... A general essential...

Kunststoffe international, 2005-11-21, Polypropylene Films: Versatile Packaging Solutions
...od with air cooling – such as is used for polyethylene. This allows processors to be far more flexible in the way they utilise their available machinery (Fig.1). A good example of these new developments is the transparent random copolymer grade Borclear RB707BF (manufacturer: Borealis), which combines transparency, gloss and a good stiffness/toughness ratio with excellent machine running properties (Fig.2). Specifically targeted multilayer designs, which include the manufacturer's own metal...

Kunststoffe international, 2007-05-14, Customised Property Combinations
...material include stiffness, moisture barrier and optical properties. The choice between PP or PE often ended up in a combination of both polymers – either by coextrusion or as a blend. For example, by combining a PP random copolymer grade, Borclear RB707CF, with a metallocene PE-LLD such as Borecene FM5220 in blends with 10 to 30% PE content, the temperature window for sealing and the toughness of the film could be optimised. However, the resulting two-phase structure had an adverse effect on ...

Kunststoffe international, 2011-10-17, Polypropylene (PP)
...re usually either the resultant optical properties and/or the stability of the process. In flat film extrusion, an overly fast line speed frequently leads to orange peel, a surface defect which impairs the gloss and transparency of the film. Borclear RE936CF (Borealis) contains a specially designed polymer which permits high-speed production of optically perfect polymer films, and is also sterilizable [3]. When PP is processed as blown film, however, the problem of bubble instability becomes mor...