RECOVERY OF REINFORCING FIBERS FROM FIBER-REINFORCED COMPOSITES

    公开(公告)号:US20190112446A1

    公开(公告)日:2019-04-18

    申请号:US16088757

    申请日:2016-03-30

    申请人: Vartega Inc.

    发明人: Andrew T. Maxey

    IPC分类号: C08J11/08 B29B17/02

    摘要: Processing fiber-reinforced composite to recover reinforcing fibers includes first treating the composite with a normally-liquid first solvent for material of the matrix followed by second treating of solid residue including reinforcing fibers from the first treating with a normally-gaseous material contacted with the solid residue under conditions of temperature and pressure at which the normally-gaseous material is in a liquid or supercritical fluid form. Treating a crude product including released reinforcing fibers and residual material of the matrix and/or fiber sizing includes first converting a normally-gaseous substance from a fluid form to a solid form and thereafter second converting the solid form to a gaseous form, to assist dislodgment of such residual material.

    RECOVERY OF REINFORCING FIBERS FROM FIBER-REINFORCED COMPOSITES

    公开(公告)号:US20210017352A1

    公开(公告)日:2021-01-21

    申请号:US16660189

    申请日:2019-10-22

    申请人: Vartega Inc.

    发明人: Andrew T. Maxey

    IPC分类号: C08J11/08 B29B17/02 B29B17/04

    摘要: Processing fiber-reinforced composite to recover reinforcing fibers includes first treating the composite with a normally-liquid first solvent for material of the matrix followed by second treating of solid residue including reinforcing fibers from the first treating with a normally-gaseous material contacted with the solid residue under conditions of temperature and pressure at which the normally-gaseous material is in a liquid or supercritical fluid form. Treating a crude product including released reinforcing fibers and residual material of the matrix and/or fiber sizing includes first converting a normally-gaseous substance from a fluid form to a solid form and thereafter second converting the solid form to a gaseous form, to assist dislodgment of such residual material.

    Recovery of reinforcing fibers from fiber-reinforced composites

    公开(公告)号:US11142626B2

    公开(公告)日:2021-10-12

    申请号:US16660189

    申请日:2019-10-22

    申请人: Vartega Inc.

    发明人: Andrew T. Maxey

    摘要: Processing fiber-reinforced composite to recover reinforcing fibers includes first treating the composite with a normally-liquid first solvent for material of the matrix followed by second treating of solid residue including reinforcing fibers from the first treating with a normally-gaseous material contacted with the solid residue under conditions of temperature and pressure at which the normally-gaseous material is in a liquid or supercritical fluid form. Treating a crude product including released reinforcing fibers and residual material of the matrix and/or fiber sizing includes first converting a normally-gaseous substance from a fluid form to a solid form and thereafter second converting the solid form to a gaseous form, to assist dislodgment of such residual material.