Patents by Inventor Bhawna Kulshreshtha
Bhawna Kulshreshtha has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240309184Abstract: 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/cm3 and an MFR2 in 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/cm3 and an MFR2 in the range 0.01-30 g/10 min; and c) a flame retardant.Type: ApplicationFiled: March 25, 2024Publication date: September 19, 2024Inventors: Bhawna KULSHRESHTHA, Johan DEFOER
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Patent number: 12049552Abstract: 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.Type: GrantFiled: June 12, 2019Date of Patent: July 30, 2024Assignee: BOREALIS AGInventors: Bhawna Kulshreshtha, Denis Yalalov, Francis Costa
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Patent number: 11976186Abstract: 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/cm3 and an MFR2 in 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/cm3 and an MFR2 in the range 0.01-30 g/10 min; and c) a flame retardant.Type: GrantFiled: June 14, 2019Date of Patent: May 7, 2024Assignee: BOREALIS AGInventors: Bhawna Kulshreshtha, Johan Defoer
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Patent number: 11958957Abstract: 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.Type: GrantFiled: June 14, 2022Date of Patent: April 16, 2024Assignee: BOREALIS AGInventors: Bhawna Kulshreshtha, Denis Yalalov, Francis Costa
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Patent number: 11893722Abstract: 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.Type: GrantFiled: June 12, 2019Date of Patent: February 6, 2024Assignee: Borealis AGInventors: Davide Tranchida, Klaus-Juergen Buchmann, Bhawna Kulshreshtha, Denis Yalalov
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Publication number: 20220306834Abstract: 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.Type: ApplicationFiled: June 14, 2022Publication date: September 29, 2022Inventors: Bhawna Kulshreshtha, Denis Yalalov, Francis Costa
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Publication number: 20220251329Abstract: A polyolefin composition for use as an outer layer of a cable is described, wherein the polyolefin composition comprises a multimodal olefin copolymer and carbon black and UV agent; wherein the multimodal olefin copolymer has density of 0.915-0.960 g/cm3, MFR2 of 0.1-10 g/10 min, wherein carbon black in the polyolefin composition is present in an amount of 0.25-1 wt %, and wherein the polyolefin composition has shrinkage of 1% or lower.Type: ApplicationFiled: October 4, 2018Publication date: August 11, 2022Inventors: Bhawna Kulshreshtha, Denis Yalalov, Francis Costa, Fredrik Bergfors
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Patent number: 11203683Abstract: 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.Type: GrantFiled: May 2, 2018Date of Patent: December 21, 2021Assignee: BOREALIS AGInventors: Susanne Kahlen, Markus Gahleitner, Cornelia Tranninger, Bhawna Kulshreshtha
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Publication number: 20210248733Abstract: 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.Type: ApplicationFiled: June 12, 2019Publication date: August 12, 2021Inventors: Davide Tranchida, Klaus-Juergen Buchmann, Bhawna Kulshreshtha, Denis Yalalov
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Publication number: 20210238385Abstract: 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.Type: ApplicationFiled: June 12, 2019Publication date: August 5, 2021Inventors: Bhawna Kulshreshtha, Denis Yalalov, Francis Costa
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Publication number: 20210214533Abstract: 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.Type: ApplicationFiled: June 12, 2019Publication date: July 15, 2021Applicant: BOREALIS AGInventors: Bhawna KULSHRESHTHA, Denis YALALOV, Francis COSTA
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Publication number: 20210163723Abstract: 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/cm3 and an MFR2 in 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/cm3 and an MFR2 in the range 0.01-30 g/10 min; and c) a flame retardant.Type: ApplicationFiled: June 14, 2019Publication date: June 3, 2021Inventors: Bhawna KULSHRESHTHA, Johan DEFOER
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Publication number: 20200385555Abstract: 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.Type: ApplicationFiled: May 2, 2018Publication date: December 10, 2020Inventors: Susanne Kahlen, Markus Gahleitner, Cornelia Tranninger, Bhawna Kulshreshtha
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Patent number: 10059785Abstract: 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.Type: GrantFiled: November 3, 2016Date of Patent: August 28, 2018Assignee: Borealis AGInventors: Bhawna Kulshreshtha, Markus Gahleitner
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Publication number: 20180215846Abstract: 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.Type: ApplicationFiled: November 3, 2016Publication date: August 2, 2018Applicant: BOREALIS AGInventors: Bhawna Kulshreshtha, Markus Gahleitner
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Publication number: 20170044359Abstract: Polypropylene-Polyethylene blends comprising A) 75 to 90 wt % of a blend of A-1) polypropylene and A-2) polyethylene and B) 10 to 25 wt % of a compatibilizer being a heterophasic polyolefin composition comprising B-1) a polypropylene with an MFR2 between 1.0 and 300 g/10 min (according to ISO 1133 at 230° C. at a load of 2.16 kg) and B-2) a copolymer of ethylene and propylene or C4 to C10 alpha olefin with a Tg (measured with dynamic-mechanical thermal analysis, DMTA, according to ISO 6721-7) of below ?25° C. and an intrinsic viscosity (measured in decalin according to DIN ISO 1628/1 at 135° C.) of at least 3.0 dl/g, whereby the blend has simultaneously increased Charpy Notched Impact Strength (according to ISO 179-1eA, measured at 23° C.), Flexural Modulus (according to ISO 178) as well as heat deflection resistance (determined with DMTA according to ISO 6721-7).Type: ApplicationFiled: April 30, 2015Publication date: February 16, 2017Inventors: Susanne Kahlen, Markus Gahleitner, Carl-Gustaf Ek, Bhawna Kulshreshtha, Norbert Reichelt, Gernot Baumgärtel
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Patent number: 8946326Abstract: Bimodal high density polyethylene composition for producing molded articles comprising—an ethylene homopolymer or an ethylene alpha-olefin copolymer which is a bimodal high density polymer (COMPONENT A) in combination with—an alphanucleating agent (COMPONENT B),—a slip agent being a primary fatty acid amide, (COMPONENT C) and—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.Type: GrantFiled: June 28, 2011Date of Patent: February 3, 2015Assignee: Borealis AGInventors: Bhawna Kulshreshtha, Luc Monnissen, Laurent Blayac
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Publication number: 20130237652Abstract: Bimodal high density polyethylene composition for producing moulded articles comprising —an ethylene homopolymer or an ethylene alpha-olefin copolymer which is a bimodal high density polymer (COMPONENT A) in combination with —an alphanucleating agent (COMPONENT B), —a slip agent being a primary fatty acid amide, (COMPONENT C) and —one or more additives selected from antioxidants, acid scavengers, pigments and UV-stabilisers (COMPONENT D), the composition showing an increased the crystallisation 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 moulded articles, especially caps and closures.Type: ApplicationFiled: June 28, 2011Publication date: September 12, 2013Applicant: BOREALIS AGInventors: Bhawna Kulshreshtha, Luc Monnissen, Laurent Blayac