Water expandable polymer beads

G. Ghurmallah (Inventor), T. Sciarone (Inventor), L. Nelissen (Inventor)

    Research output: PatentPatent publication

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    Abstract

    The present invention relates to a process for the preparation of water expandable polymer beads, which process comprises the steps of: a) providing a starting composition comprising styrene and a cross-linking agent containing a hydrophilic polymer chain and at least two hydrolysable end-groups having a carbon-to-carbon double bond, b) prepolymerizing the starting composition to obtain a prepolymer composition, c) adding an aqueous dispersion of a modifier-free nanoclay to the prepolymer composition to obtain an inverse emulsion, d) suspending the inverse emulsion obtained by step c) in an aqueous medium to yield an aqueous suspension of suspended droplets and e) polymerizing the monomers in the droplets of the suspension obtained by step d) to obtain the water expandable polymer beads.

    Original languageEnglish
    Patent numberWO2015181113
    IPCC08K 3/ 34 A I
    Priority date28/05/14
    Publication statusPublished - 3 Dec 2015

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    Polymers
    Water
    Emulsions
    Chemical analysis
    Suspensions
    Carbon
    Styrene
    Patents and inventions
    Monomers

    Cite this

    Ghurmallah, G., Sciarone, T., & Nelissen, L. (2015). IPC No. C08K 3/ 34 A I. Water expandable polymer beads. (Patent No. WO2015181113).
    Ghurmallah, G. (Inventor) ; Sciarone, T. (Inventor) ; Nelissen, L. (Inventor). / Water expandable polymer beads. IPC No.: C08K 3/ 34 A I. Patent No.: WO2015181113.
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    abstract = "The present invention relates to a process for the preparation of water expandable polymer beads, which process comprises the steps of: a) providing a starting composition comprising styrene and a cross-linking agent containing a hydrophilic polymer chain and at least two hydrolysable end-groups having a carbon-to-carbon double bond, b) prepolymerizing the starting composition to obtain a prepolymer composition, c) adding an aqueous dispersion of a modifier-free nanoclay to the prepolymer composition to obtain an inverse emulsion, d) suspending the inverse emulsion obtained by step c) in an aqueous medium to yield an aqueous suspension of suspended droplets and e) polymerizing the monomers in the droplets of the suspension obtained by step d) to obtain the water expandable polymer beads.",
    author = "G. Ghurmallah and T. Sciarone and L. Nelissen",
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    Ghurmallah, G, Sciarone, T & Nelissen, L 2015, Water expandable polymer beads, Patent No. WO2015181113, IPC No. C08K 3/ 34 A I.

    Water expandable polymer beads. / Ghurmallah, G. (Inventor); Sciarone, T. (Inventor); Nelissen, L. (Inventor).

    IPC No.: C08K 3/ 34 A I. Patent No.: WO2015181113.

    Research output: PatentPatent publication

    TY - PAT

    T1 - Water expandable polymer beads

    AU - Ghurmallah, G.

    AU - Sciarone, T.

    AU - Nelissen, L.

    PY - 2015/12/3

    Y1 - 2015/12/3

    N2 - The present invention relates to a process for the preparation of water expandable polymer beads, which process comprises the steps of: a) providing a starting composition comprising styrene and a cross-linking agent containing a hydrophilic polymer chain and at least two hydrolysable end-groups having a carbon-to-carbon double bond, b) prepolymerizing the starting composition to obtain a prepolymer composition, c) adding an aqueous dispersion of a modifier-free nanoclay to the prepolymer composition to obtain an inverse emulsion, d) suspending the inverse emulsion obtained by step c) in an aqueous medium to yield an aqueous suspension of suspended droplets and e) polymerizing the monomers in the droplets of the suspension obtained by step d) to obtain the water expandable polymer beads.

    AB - The present invention relates to a process for the preparation of water expandable polymer beads, which process comprises the steps of: a) providing a starting composition comprising styrene and a cross-linking agent containing a hydrophilic polymer chain and at least two hydrolysable end-groups having a carbon-to-carbon double bond, b) prepolymerizing the starting composition to obtain a prepolymer composition, c) adding an aqueous dispersion of a modifier-free nanoclay to the prepolymer composition to obtain an inverse emulsion, d) suspending the inverse emulsion obtained by step c) in an aqueous medium to yield an aqueous suspension of suspended droplets and e) polymerizing the monomers in the droplets of the suspension obtained by step d) to obtain the water expandable polymer beads.

    M3 - Patent publication

    M1 - WO2015181113

    ER -

    Ghurmallah G, Sciarone T, Nelissen L, inventors. Water expandable polymer beads. C08K 3/ 34 A I. 2015 Dec 3.