Borealis Ag

Bhawna Kulshreshtha

Markus Gahleitner

Carl-Gustaf Ek

Denis Yalalov

Francis Costa

Susanne Kahlen

Yi Liu

Norbert Reichelt

Cornelia Anita Tranninger

Johan Defoer

Davide Tranchida

Luc Monnissen

Juliane Braun

Velichko Hristov

Laurent Blayac

Klaus-Juergen Buchmann

Gernot Baumgärtel

The present invention is directed to a polyolefin composition which provides improved contrast of laser marks. It is suitable for many applications where precise marking of a molded article made of a polyolefin composition is required, e.g. as outer layer of a wire or cable or in automotive applications. The polyolefin composition of the present invention comprises a polyolefin, carbon black in an amount of 0.25 to 1.0 wt % and an optical brightener in an amount of 0.001 to 0.1 wt %. The present invention is further directed to a molded article comprising the polyolefin composition of the present invention. Further on, the present invention is directed to the use of the polyolefin composition of the present invention as an outer layer of a cable. Finally, the present invention is directed to a method of inducing print on a molded article by laser printing.

Polyolefin composition providing improved contrast of laser marks

The invention provides a flame retardant polyolefin composition comprising a) an ethylene based plastomer with a density in the range of 0.850 to 0.915 g/cmand an MFRin the range 0.5-30 g/10 min; b) a propylene based plastomer with a density in the range of 0.860 to 0.910 g/cmand an MFRin the range 0.01-30 g/10 min; and c) a flame retardant.

Flame retardant polyolefin composition

The present invention is directed to a polyolefin composition comprising carbon black which shows fluorescence when irradiated with UV light. The polyolefin composition of the present invention comprises a polyolefin, carbon black in an amount of 0.25 to 1.0 wt %, an optical brightener in an amount of 0.001 to 0.1 wt %, and a UV agent. The present invention is further directed to a molded article comprising the polyolefin composition of the present invention. The present invention is further directed to a wire or cable comprising an outer layer comprising the polyolefin composition of the present invention. Finally, the present invention is directed to a method for detection of a polyolefin composition by UV light and to a method for detection of a molded article or a wire or cable by UV light.

Polyolefin composition providing marking by fluorescence

The present invention is directed to a method for quantitative and qualitative evaluation of laser printed samples, the method comprising the following steps: a) providing (S1) a laser printed sample, b) capturing (S2) a digital raster image of the laser printed part of the laser printed sample and thereon providing digital image information that constitutes the digital raster image, c) identifying (S3) at least one distinct part within the digital image information, d) obtaining at least one image histogram for the identified at least one distinct part of the digital image information, e) fitting (S4) a probability density function on the obtained at least one image histogram, and f) determining (S5) at least one parameter of the probability density function.

Method for evaluation of quality of laser printed samples

The present invention relates to a polyolefin composition, the use of the polyolefin composition in a compound with one or more virgin polymers for automotive articles or applications, pipes or profiles for construction applications, the use of a heterophasic polypropylene (HECO) as compatibilizer for polyolefin blends A) between a copolymer of ethylene and one or more C4 to C19 alpha olefin B) and a reinforcing mineral filler D) as well as a process for producing the polyolefin composition.

PP-rich material composition having high stiffness and processability

The invention is related to a composition of polypropylene and polyethylene, which contains specific compatibilizer and flow enhancer. Furthermore the present invention is also related to articles comprising the said composition and the use of said articles in packaging application.

Polypropylene-polyethylene composition with improved flowability

Bimodal high density polyethylene composition for producing molded articles comprising&#x2014;an ethylene homopolymer or an ethylene alpha-olefin copolymer which is a bimodal high density polymer (COMPONENT A) in combination with&#x2014;an alphanucleating agent (COMPONENT B),&#x2014;a slip agent being a primary fatty acid amide, (COMPONENT C) and&#x2014;one or more additives selected from antioxidants, acid scavengers, pigments and UV-stabilizers (COMPONENT D), the composition showing an increased the crystallization temperature and a decreased coefficient of friction compared to a bimodal HDPE composition prepared with the sole use of nucleating agent and compared to the sole use of a slip agent; and its use for producing injection molded articles, especially caps and closures.

Growing community of inventors

Linz, Austria

Bhawna Kulshreshtha