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    Method for producing a fibre-composite made from amorphous, chemically modified polymers with reinforcement fibres
    24.
    发明授权
    Method for producing a fibre-composite made from amorphous, chemically modified polymers with reinforcement fibres 有权

    公开(公告)号：US10711110B2

    公开(公告)日：2020-07-14

    申请号：US15567480

    申请日：2016-04-22

    Applicant: INEOS STYROLUTION GROUP GMBH

    Inventor： Norbert Niessner ,  Eike Jahnke

    IPC: C08K7/00 ,  C08J5/08 ,  C08L33/20 ,  C08L25/12 ,  C08K7/02

    Abstract: The invention relates to a method for producing a thermoplastic fibre composite containing a thermoplastic moulding compound (A) as a polymer-matrix (M), reinforcement fibres (B), and optionally additive (C). Said method comprises the following steps: i) flat structures (F) made from reinforcing fibres (B) treated with a silane sizing material are provided, ii) the flat structures (F) are placed in a thermoplastic molding compound (A) which comprises at least 0.3 mol %, with respect to components (A), of a chemically reactive functionality, iii) chemically reactive groups of the thermoplastic molding compound (A) are reacted in the polymer matrix (M) with the polar groups of the treated reinforcing fibres (B), iv) the at least one additive (C) is optionally incorporated v) cooling. Said method is particularly suitable for producing fibrous composites.

    Process for the depolymerization of polystyrene
    28.
    发明授权
    Process for the depolymerization of polystyrene 有权

    公开(公告)号：US12116337B2

    公开(公告)日：2024-10-15

    申请号：US17641474

    申请日：2020-09-17

    Applicant: INEOS STYROLUTION GROUP GMBH

    Inventor： Norbert Niessner ,  Bianca Wilhelmus ,  Achim Schmidt-Rodenkirchen ,  Konstantin Mierdel ,  Frank Neuner

    IPC: C07C4/22 ,  C08J11/12

    CPC classification number: C07C4/22 ,  C08J11/12 ,  C07C2527/224 ,  C08J2325/06

    Abstract: The invention relates to a process for the preparation of styrene monomers by depolymerising polystyrene, to a device for carrying out the process and to the use of a fluidised bed reactor for the depolymerisation of polystyrene. Said process comprising the following steps: a) feeding a polymer composition (A) containing 60 to 99.9 wt. polystyrene, based on the total weight of the polymer composition (A), into the reaction zone (R) of a pyrolysis reactor (P); b) thermally cracking the polystyrene contained in the polymer composition (A) in the reaction zone (R) of the pyrolysis reactor (P) at a temperature of between 400° C. to 1000° C. to obtain a product mixture (G) containing styrene monomers and other components; c) removing the product mixture (G) obtained in step b) from the reaction zone (R) of the pyrolysis reactor (P); d) cooling the product mixture (G) removed in step c) to obtain a condensed product mixture (K) containing styrene monomers and further components; and e) separating the styrene monomers from the further components of the condensed product mixture (K) obtained in step d), wherein the average residence time (Z) of the polymer composition (A) in the reaction zone (R) of the pyrolysis reactor (P) is from 0.01 sec to 10 sec.

    Vinyl aromatic/diene-block copolymers having good organoleptic properties
    30.
    发明授权
    Vinyl aromatic/diene-block copolymers having good organoleptic properties 有权

    公开(公告)号：US11326014B2

    公开(公告)日：2022-05-10

    申请号：US16622520

    申请日：2018-06-18

    Applicant: INEOS STYROLUTION GROUP GMBH

    Inventor： Norbert Niessner ,  Daniel Wagner ,  Michiel Verswyvel

    IPC: C08F297/04 ,  C08F6/10

    Abstract: The invention relates to a vinyl aromatic/diene-block copolymer A, obtained by an anionic polymerization of a monomer composition, comprising: Al: 60-95 wt.-% of at least one vinyl aromatic monomer, and A2:5-40 wt.-% of at least one diene monomer, wherein the vinyl aromatic/diene-block copolymer A in total comprises less than 10 parts per million (ppm) of acetaldehyde, methacrolein and styrene based on the total amount of vinyl aromatic/diene-block copolymer A; the vinyl aromatic/diene-block copolymer A has improved orgnoleptic properties and is in particular suitable for producing food packaging materials.

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