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    LOW TEMPERATURE FOAMABLE POLYCARBONATE COMPOSITION AND ARTICLES THEREOF
    2.
    发明申请
    LOW TEMPERATURE FOAMABLE POLYCARBONATE COMPOSITION AND ARTICLES THEREOF 有权

    公开(公告)号：US20210095127A1

    公开(公告)日：2021-04-01

    申请号：US17007644

    申请日：2020-08-31

    Applicant: SABIC Global Technologies B.V.

    Inventor： Bart VANDORMAEL ,  Arno C. HAGENAARS ,  Johannes Gerardus Petrus GOOSSENS ,  Johannes DE BROUWER ,  Pieter Jan Antoon JANSSEN

    IPC: C08L83/10 ,  C08G64/18 ,  C08G64/16

    Abstract: A foamable poly carbonate composition comprising 5 to 95 wt % of a poly(siloxane) block copolymer comprising a poly(carbonate-siloxane) comprising 50 to 99 wt % of bisphenol A carbonate units and 1 to 50 wt % of dimethylsiloxane units, each based on the weight of the poly(carbonate-siloxane), a poly(ester-carbonate-siloxane) comprising bisphenol A carbonate units, isophthalate-terephthalate-bisphenol A ester units, and 5 to 200 dimethyl siloxane units, or a combination thereof; 5 to 95 wt % of an auxiliary component comprising a poly(alkylene ester), a poly(ester-carbonate), or a combination thereof, and optionally, a homopolycarbonate; optionally, up to 10 wt % of an additive composition, wherein the composition has a glass transition temperature of 140° C. and below measured using differential scanning calorimetry, and wherein a foamed sample of the composition has an average cell size of 10 nanometers to 20 micrometers.

    POLYCARBONATE COMPOSITIONS FOR MEDICAL DEVICES
    4.
    发明申请
    POLYCARBONATE COMPOSITIONS FOR MEDICAL DEVICES 有权

    公开(公告)号：US20210054195A1

    公开(公告)日：2021-02-25

    申请号：US17010119

    申请日：2020-09-02

    Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

    Inventor： Johannes DE BROUWER ,  Robert Dirk VAN DE GRAMPEL ,  Mark Adrianus Johannes VAN DER MEE ,  Peter DIMATTIA

    IPC: C08L69/00 ,  C08G63/195 ,  C08G63/685

    Abstract: A thermoplastic composition including a copolycarbonate comprising bisphenol A carbonate units and second carbonate units of the formula wherein Ra and Rb are each independently a C1-12 alkyl, C1-12 alkenyl, C3-8 cycloalkyl, or C1-12 alkoxy, each R3 is independently a C1-6 alkyl, R4 is hydrogen, C2-6 alkyl or phenyl optionally substituted with 1 to 5 C1-6 alkyl groups, p, q, and j are each independently 0 to 4, optionally a bisphenol A homopolycarbonate; and an acid stabilizer comprising a sulfonic acid ester; wherein the composition has an improved volatile or non-volatile organic compound content and yellowness index value when compared to a reference sample of an otherwise identical composition except for not containing the stabilizer.

    USING FILM TO PROVIDE A PREFORM FOR MICRO INJECTION MOLDING PROCESS
    5.
    发明申请
    USING FILM TO PROVIDE A PREFORM FOR MICRO INJECTION MOLDING PROCESS 审中-公开

    公开(公告)号：US20190381708A1

    公开(公告)日：2019-12-19

    申请号：US16481534

    申请日：2018-01-31

    Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

    Inventor： Johannes DE BROUWER ,  Herwig JUSTER ,  Kenneth Francis LAWSON

    IPC: B29C45/00 ,  A61M37/00 ,  B29C45/26

    Abstract: A mold assembly 100 for forming a microneedle array, wherein the mold assembly facilitates expulsion of trapped gasses from the molding system. The mold assembly may comprise a first mold portion 102 comprising a plurality of recesses 104 formed therein, a second mold portion 106 disposed adjacent the first mold portion, wherein a surface of the second mold portion and the plurality of recesses of the first mold portion define a mold cavity, a mold film insert 112 disposed within the mold cavity between the first mold portion and the second mold portion of the mold assembly, the mold film insert comprising a plurality of perforated layers 114, each of the perforated layers comprising a plurality of perforations.

    MICRONEEDLE CURVED LAMINATE MOLD AND A METHOD OF MANUFACTURING MICRONEEDLE ARRAYS USING THIS MOLD
    8.
    发明申请
    MICRONEEDLE CURVED LAMINATE MOLD AND A METHOD OF MANUFACTURING MICRONEEDLE ARRAYS USING THIS MOLD 审中-公开

    公开(公告)号：US20200094033A1

    公开(公告)日：2020-03-26

    申请号：US16471957

    申请日：2017-12-21

    Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

    Inventor： Johannes DE BROUWER ,  Herwig JUSTER

    IPC: A61M37/00 ,  B29C43/22 ,  B29C33/42

    Abstract: A method of forming a microneedle array comprising disposing a first curved laminate 100 adjacent an embossing roll 101. The laminate comprises a body having a first longitudinal side and a second longitudinal side extending from a curved base. The first longitudinal side comprises a plurality of recesses 111 disposed adjacent a periphery of the first longitudinal side. At least a second curved laminate 105 is disposed adjacent the embossing roll, defining a plurality of cavities 208 there between. A material is extruded at one or more of the first and second curved laminates. At least a portion of the embossing roll is heated at a point of contact between the material and one or more of the first and second curved laminates. The material is caused to move into the plurality of cavities forming a plurality of projections at a surface of the material and the material is demolded.

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