Cromophtal - Colorants - BASF SE

Kunststoffe international, 2005-11-21, Additives
...moisture-sensitive polymers such as polycarbonate and PET, or in odour-sensitive applications. Two years ago, Ciba Spezialitätenchemie, Basel/Switzerland, launched a new series of high-grade pigments for polyolefins and vinyl polymers: Cromophtal 2000. This range has now had the Cromophtal Red 2028 grade added to it, which is specially designed for dyeing PE-HD. This product combines the extraordinary colour properties of Cromophtal Red 2030 with freedom from warpage in polyethylene, as is other...

Kunststoffe international, 2005-11-21, Additives: Custom-engineered Plastics
...ring and the Graphotol series was expanded by five red tones for solution dyeing and colouring of polyolefin film (Fig.4). Ciba also introduced a new DDP pigment that, however, will be on the market only in the second half of 2005. Cromophtal Rot (red) PD3092 is a highly transparent, low/non-warping yellowish red pigment for colouring of PVC and polyolefins (Fig.5). The new pigment is suitable for use in polypropylene fibre and highly transparent plastic packaging, for pastel-coloured tones in ...

Kunststoffe international, 2005-11-21, Compounds: Flame Proofing and Light Stabilisation of Polypropylene
...Bewitterung = Artificial weathering time ; halogenfreies FSM = Halogen-free flame retardant Fig.3. Degraded surface shown under 50x magnification Fig.4. Light stabiliser comparison: Loss of gloss of a PP copolymer containing 0.2% Cromophtal Blue4GNP: the gloss changes during degradation of the surface Glanz = Gloss ; Dauer der künstlichen Bewitterung = Artificial weathering time ; Klassisches LS = Traditional light stabiliser; Alternatives LS = Alternative light stabiliser Fig.5. UV resistanc...

Kunststoffe international, 2005-11-21, Integrated Solutions
...r, there is rarely enough experience available on the optimum use of these colorants and their potential interactions with other aids. One interesting example for polyolefin applications is the innovative diketo-pyrrolo-pyrrole (DPP) pigment, Cromophtal Red 2028. This pigment differs from other DPP red pigments in that it causes only minimal deformation of the polyolefin parts. This property is of particular benefit for large parts, making this pigment highly suitable for large polypropylene (PP...

Kunststoffe international, 2007-09-19, Tailored to Your Timeline
... 386. Even PP homopolymers become quite transparent through addition of 200 ppm. The product has already received the requisite approvals for use in plastics in food-contact applications. In combination with the new clarifier, the new Ciba Cromophtal DPP Red TFP pigment is especially effective (Fig. 2). With its high transparency and intensity, it is ideally suited for use in combination with special-effect pigments for shimmering and sparkle effects. Milliken Chemical, Spartanburg, South Caroli...

Kunststoffe international, 2007-10-19, Your Business – Our Effects
...lue. New for the K 2007 Ciba will introduce the antioxidant Ciba Irgatec NC 66 for the first time at the K 2007. It is intended specifically to improve the durability of nanocomposites. The first products are already appearing. With Ciba Cromophtal Yello 4GV und Ciba Microlen Yello 4GV-PG, a green-tinted yellow pigment on an entirely organic basis is coming to the market in powdered and granular form for the first time. It is free of heavy metals and FDA-listed. For dust-free processing, use o...

Kunststoffe international, 2010-09-24, Color Takes on a Functional Role
...nt of new pigment chemistry was the diketopyrrolopyrroles (DPP). A pigment with Color Index P.R. 254 came on the market only in 1986 as Irgazin DPP Red BO for coating applications. The first DPP for plastics was launched in 1989 under the trade name Cromophtal DPP Red BP and was characterized by its brilliance and high color strength. With its excellent processing and performance characteristics such as light and weather fastness, heat resistance and chemical resistance, it set new standards in ...