Method for evaluation of quality of laser printed samples

    公开(公告)号:US11893722B2

    公开(公告)日:2024-02-06

    申请号:US16973483

    申请日:2019-06-12

    Applicant: BOREALIS AG

    CPC classification number: G06T7/0004 B41J29/393 G06T2207/30144

    Abstract: 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.

    POLYOLEFIN COMPOSITION PROVIDING MARKING BY FLUORESCENCE

    公开(公告)号:US20220306834A1

    公开(公告)日:2022-09-29

    申请号:US17840001

    申请日:2022-06-14

    Applicant: BOREALIS AG

    Abstract: 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.

    POLYPROPYLENE - POLYETHYLENE BLENDS WITH IMPROVED PROPERTIES
    5.
    发明申请
    POLYPROPYLENE - POLYETHYLENE BLENDS WITH IMPROVED PROPERTIES 审中-公开
    具有改进性能的聚丙烯 - 聚乙烯共混物

    公开(公告)号:US20170044359A1

    公开(公告)日:2017-02-16

    申请号:US15306620

    申请日:2015-04-30

    Applicant: BOREALIS AG

    Abstract: 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).

    Abstract translation: 聚丙烯 - 聚乙烯共混物,其包含A)75至90重量%的A-1)聚丙烯和A-2)聚乙烯的共混物和B)10至25重量%的增容剂,其为包含B-1的多相聚烯烃组合物)聚丙烯 MFR2在1.0和300g / 10min之间(根据ISO 1133在230℃,2.16kg负荷下)和B-2)乙烯与丙烯或C 4至C 10α-烯烃与Tg的共聚物(测量 使用动态机械热分析,根据ISO 6721-7的DMTA)低于-25℃,特性粘度(根据DIN ISO 1628/1在135℃下在萘烷中测量)为至少3.0dl / g,其中共混物同时增加夏比缺口冲击强度(根据ISO 179-1eA,在23℃下测量),弯曲模量(根据ISO 178)以及耐热偏转性(根据ISO 6721测定的DMTA -7)。

    POLYOLEFIN COMPOSITION PROVIDING MARKING BY FLUORESCENCE

    公开(公告)号:US20210238385A1

    公开(公告)日:2021-08-05

    申请号:US15734741

    申请日:2019-06-12

    Applicant: BOREALIS AG

    Abstract: 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 improved contrast of laser marks

    公开(公告)号:US12049552B2

    公开(公告)日:2024-07-30

    申请号:US15733971

    申请日:2019-06-12

    Applicant: BOREALIS AG

    Abstract: 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.

Patent Agency Ranking