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    Process for pre-contacting catalyst components ex-reactor to produce amorphous poly alpha-olefins
    1.
    发明授权
    Process for pre-contacting catalyst components ex-reactor to produce amorphous poly alpha-olefins 有权

    公开(公告)号：US10995162B2

    公开(公告)日：2021-05-04

    申请号：US16508491

    申请日：2019-07-11

    Applicant: REXtac, LLC

    Inventor： Mitchell Arnold ,  Andres Sustic ,  Steve Oetting ,  Nick Fowler

    IPC: C08F10/06

    Abstract: A continuous process for pre-contacting coordination polymerization catalyst components with each other before they are introduced into a polymerization reactor at 130 degrees Fahrenheit to 200 degrees Fahrenheit, where the activated coordination catalyst is contacted with at least one monomer to produce amorphous poly alpha olefin (APAO), the process involving blending a Ziegler-Natta pro-catalyst with a liquid carrier forming a Ziegler-Natta pro-catalyst slurry and flowing a co-catalyst mixture into the Ziegler-Natta pro-catalyst slurry continuously in a pre-contacting device, forming an activated Ziegler-Natta catalyst; continuously injecting the activated Ziegler-Natta catalyst into the heated polymerization reactor while simultaneously, and continuously, injecting propylene monomer and any other alpha-olefin monomers, and hydrogen gas for molecular weight control, initiating an exothermic reaction forming a monomer-polymer-catalyst slurry then continuously stirring the monomer-polymer-catalyst slurry forming an amorphous poly alpha olefin with a saturated backbone.

    PROCESS FOR PRE-CONTACTING CATALYST COMPONENTS EX-REACTOR TO PRODUCE AMORPHOUS POLY ALPHA-OLEFINS
    3.
    发明申请
    PROCESS FOR PRE-CONTACTING CATALYST COMPONENTS EX-REACTOR TO PRODUCE AMORPHOUS POLY ALPHA-OLEFINS 有权

    公开(公告)号：US20210017306A1

    公开(公告)日：2021-01-21

    申请号：US16508491

    申请日：2019-07-11

    Applicant: REXtac, LLC

    Inventor： Mitchell Arnold ,  Andres Sustic ,  Steve Oetting ,  Nick Fowler

    IPC: C08F10/06

    Abstract: A continuous process for pre-contacting coordination polymerization catalyst components with each other before they are introduced into a polymerization reactor at 130 degrees Fahrenheit to 200 degrees Fahrenheit, where the activated coordination catalyst is contacted with at least one monomer to produce amorphous poly alpha olefin (APAO), the process involving blending a Ziegler-Natta pro-catalyst with a liquid carrier forming a Ziegler-Natta pro-catalyst slurry and flowing a co-catalyst mixture into the Ziegler-Natta pro-catalyst slurry continuously in a pre-contacting device, forming an activated Ziegler-Natta catalyst; continuously injecting the activated Ziegler-Natta catalyst into the heated polymerization reactor while simultaneously, and continuously, injecting propylene monomer and any other alpha-olefin monomers, and hydrogen gas for molecular weight control, initiating an exothermic reaction forming a monomer-polymer-catalyst slurry then continuously stirring the monomer-polymer-catalyst slurry forming an amorphous poly alpha olefin with a saturated backbone.

    PROCESS FOR PRE-CONTACTING METALLOCENE CATALYST COMPONENTS TO PRODUCE AMORPHOUS POLY ALPHA-OLEFINS
    4.
    发明申请
    PROCESS FOR PRE-CONTACTING METALLOCENE CATALYST COMPONENTS TO PRODUCE AMORPHOUS POLY ALPHA-OLEFINS 有权

    公开(公告)号：US20210009721A1

    公开(公告)日：2021-01-14

    申请号：US16945654

    申请日：2020-07-31

    Applicant: REXTAC LLC

    Inventor： Andres Sustic ,  Mitchell Arnold ,  Nick Fowler

    IPC: C08F10/02

    Abstract: A continuous process for pre-contacting coordination polymerization catalyst components with each other before they are introduced into a polymerization reactor at 130 degrees Fahrenheit to 200 degrees Fahrenheit, where the activated coordination catalyst is contacted with at least one monomer to produce amorphous poly alpha olefin (APAO). Embodiments of the process involves blending a metallocene pre-catalyst with an organic solvent forming a metallocene pre-catalyst solution and flowing a co-catalyst mixture into the metallocene pre-catalyst solution continuously in a pre-contacting device, forming an activated metallocene catalyst. Embodiments further involve continuously injecting the activated metallocene catalyst into the heated polymerization reactor while simultaneously and continuously injecting propylene monomer and/or other alpha-olefin monomers, and hydrogen gas for molecular weight control, initiating an exothermic reaction forming a monomer-polymer-catalyst slurry. Embodiments further involve continuously stirring the monomer-polymer-catalyst slurry forming an amorphous poly alpha olefin with a saturated backbone.

    Method for making hexene-1 containing amorphous poly alpha olefins for improved hot-melt adhesives
    6.
    发明授权
    Method for making hexene-1 containing amorphous poly alpha olefins for improved hot-melt adhesives 有权

    公开(公告)号：US10738222B2

    公开(公告)日：2020-08-11

    申请号：US16383914

    申请日：2019-04-15

    Applicant: REXTAC, LLC

    Inventor： Andres Sustic ,  Nick Fowler ,  John Passmore ,  John J. Decair

    IPC: C09J123/14 ,  C08J3/00

    Abstract: A method to make a hot-melt polymer formulation with from 50 wt % to 100 wt % of a propylene-co-butene-1-co-hexene-1 terpolymer or a propylene-co-hexene-1 copolymer, each polymer made using a metal chloride supported Ziegler-Natta catalyst, at a process temperature between about 130 degrees Fahrenheit and about 200 degrees Fahrenheit and at a reactor pressure sufficient to maintain the propylene in a liquid phase without solvent; using 1 wt % to 20 wt % of at least one of: a metallocene-catalyst made polymer; a homopolymer of propylene with 0.1%-5% functionality; and a styrene block copolymer; and wherein the melt viscosity of the terpolymer or copolymer formulation is controlled by addition of hydrogen gas as a chain transfer agent.

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