TAPE OF A PLURALITY OF SHEATHED CONTINOUS MULTIFILAMENT STRANDS

    公开(公告)号:US20210070009A1

    公开(公告)日:2021-03-11

    申请号:US16772420

    申请日:2018-12-21

    Abstract: The invention relates to a tape comprising a plurality of sheathed continuous multifilament strands, wherein each of the sheathed continuous multifilament strands comprises a core that extends in the longitudinal direction and a polymer sheath which intimately surrounds said core, wherein each of the cores comprises an impregnated continuous multifilament strand comprising at least one continuous glass multifilament strand, wherein the at least one continuous glass multifilament strand is impregnated with an impregnating agent in an amount from 0.50 to 15.0 wt %, for example from 0.5 to 10.0 wt % or for example from 10.0 to 15.0 wt % based on the sheathed continuous multifilament strand, wherein the impregnating agent has a melting point of at least 20° C. below the melting point of the thermoplastic polymer composition, has a viscosity of from 2.5 to 200 cSt at 160° C., wherein the continuous glass multifilament strand comprises at most 2 wt % of a sizing composition based on the continuous glass multifilament strand and wherein the polymer sheath consists of a thermoplastic polymer composition, wherein the thermoplastic polymer composition comprises at least 60 wt %, for example at least 80 wt % of a thermoplastic polymer, wherein the amount of impregnated continuous multifilament strand is in the range of 10 to 70 wt % based on the sheathed continuous multifilament strands and wherein the amount of polymer sheath is in the range of 30 to 90 wt % based on the sheathed continuous multifilament strand and wherein the sum of the amount of impregnated continuous multifilament strand and the polymer sheath is 100 wt %.

    PELLET COMPRISING AN AXIAL CORE AND A POLYMER SHEATH, AND ITS MANUFACTURE

    公开(公告)号:US20200078988A1

    公开(公告)日:2020-03-12

    申请号:US16469944

    申请日:2017-12-14

    Abstract: Pellet having an axial direction and comprising a core that extends in the axial direction and further comprising a polymer sheath applied around said core, wherein said core comprises a plurality of filaments that extend in the axial direction; said polymer sheath is at least substantially free of said filaments; said polymer sheath comprising a plurality of filler particles; said pellet comprises at least 30%, preferably at least 35%, more preferably at least 40%, and preferably at most 60%, preferably at most 50%, of filaments by weight of the total weight of said pellet. Further disclosed is a reinforced article obtained from molding a plurality of said pellets, and a method of making such a pellet.

    PROCESS FOR PRODUCTION OF FIBER REINFORCED TAPE

    公开(公告)号:US20220242068A1

    公开(公告)日:2022-08-04

    申请号:US17610995

    申请日:2020-05-11

    Abstract: The invention relates to a process for the production of a tape comprising a plurality of impregnated continuous multifilament strands and a polymer sheath which intimately surrounds the plurality of impregnated continuous multifilament strands, wherein each of the plurality of impregnated multifilament strands extends in the longitudinal direction, wherein each of the plurality of impregnated continuous multifilament strands comprises at least one continuous glass multifilament strand, wherein the at least one continuous glass multifilament strand is impregnated with an impregnating agent, wherein the process comprising the steps of a) unwinding from a package the continuous glass multifilament strands, b) applying the impregnating agent to the continuous glass multifilament strands to form the plurality of impregnated continuous multifilament strands, c) placing the plurality of impregnated continuous multifilament strands in parallel alignment in the longitudinal direction and d) applying a sheath of a thermoplastic polymer composition around the plurality of impregnated continuous multifilament strands of step c) to form the tape, wherein steps c) and d) are performed in a die having a guiding means arranged for placing the plurality of impregnated continuous multifilament strands in parallel alignment in the longitudinal direction, wherein the plurality of impregnated continuous multifilament strands pass through a melt of the thermoplastic polymer composition inside of the die downstream of the guiding means.

    PROCESS FOR PRODUCING A GLASS FIBRE-REINFORCED THERMOPLASTIC POLYMER COMPOSITION
    9.
    发明申请
    PROCESS FOR PRODUCING A GLASS FIBRE-REINFORCED THERMOPLASTIC POLYMER COMPOSITION 审中-公开
    生产玻璃纤维增​​强热塑性聚合物组合物的方法

    公开(公告)号:US20160279833A1

    公开(公告)日:2016-09-29

    申请号:US15036319

    申请日:2014-10-31

    Abstract: The present invention relates to a process for producing a glass fibre-reinforced themoplastic polymer composition, comprising subsequent steps of unwinding from a package of a continuous glass multifilament strand and applying a sheath of thermoplastic polymer around said multifilament strand to form a sheathed continuous multifilament strand, wherein at least two continuous glass multifilament strands together are provided within said sheath of themoplastic polymer, wherein said sheath of thermoplastic polymer surrounds said at least two continuous glass multifilament strands in such a way that said at least two continuous glass multifilament strands are in close contact with each other.

    Abstract translation: 本发明涉及一种生产玻璃纤维增​​强聚合物组合物的方法,其包括以下步骤:从连续的玻璃复丝线束的包装中退绕并在所述复丝股线周围施加热塑性聚合物的护套以形成包覆的连续复丝股线 其中在所述塑料聚合物的所述护套内提供至少两个连续的玻璃复丝束,其中所述热塑性聚合物护套围绕所述至少两个连续的玻璃复丝股线,使得所述至少两个连续的玻璃复丝股线处于紧密状态 互相接触。

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