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    SPRAYABLE POLYURETHANE/UREA ELASTOMER FOR AGRICULTURE
    224.
    发明申请
    SPRAYABLE POLYURETHANE/UREA ELASTOMER FOR AGRICULTURE 审中-公开

    公开(公告)号：US20190031912A1

    公开(公告)日：2019-01-31

    申请号：US15780379

    申请日：2016-11-30

    Applicant: COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION

    Inventor： Raju ADHIKARI

    IPC: C09D175/12 ,  C08G18/10 ,  C08G18/60 ,  C08G18/62 ,  C08G18/34 ,  C08G18/32 ,  C08G18/08 ,  C08G18/65 ,  C08G18/75 ,  C05G3/00 ,  A01G13/02

    Abstract: A process for preparing a polymeric membrane for materials used in crop production comprising: a) providing an aqueous dispersion of a polyurethane or polyurethane-urea elastomer comprising segments formed from the copolymer segment of Formula I A1-[Y1]n-L-[Y2]q-A2   Formula I wherein A1 is an end capping group; A2 is hydrogen or an end capping group; each [Y1]n and [Y2]q is independently selected from a polyether macrodiol, polycarbonate macrodiol, polyester macrodiol, and wherein at least one of [Y1]n and [Y2]q is a polyester macrodiol; L is a divalent linking compound independently selected from urethane, urea, carbonate, ester, and phosphonate; n is an integer of 2 to 50; q is an integer of 2 to 50; and b) spraying the aqueous dispersion onto materials to be used in crop production to form a polymeric membrane on the materials.

    A ROTARY DEVICE
    227.
    发明申请
    A ROTARY DEVICE 审中-公开

    公开(公告)号：US20180369848A1

    公开(公告)日：2018-12-27

    申请号：US16064958

    申请日：2016-12-21

    Applicant: Commonwealth Scientific and Industrial Research Organisation

    Inventor： Andrew Joseph URBAN ,  Steven John HOGAN

    IPC: B05B13/02 ,  B05B7/14 ,  C23C24/04

    Abstract: Some embodiments relate to an apparatus for holding a workpiece under tension while one or more operations are performed on the workpiece, the apparatus comprising: a frame; a first spindle rotatably coupled to the frame; a first coupler configured to couple the first spindle to a first end of the workpiece; a second spindle rotatably coupled to the frame; and a second coupler configured to couple the second spindle to a second end of the workpiece; wherein a distance between the first and second couplers is adjustable to hold the workpiece under tension between the couplers while the one or more operations are performed, and wherein the workpiece can be rotated with the couplers relative to the frame about a common axis of rotation extending between the couplers. Some embodiments relate to a system comprising a controller for controlling rotation of the workpiece. Embodiments also relate to processes comprising holding a workpiece under tension while performing one or more operations on the workpiece. Some of the processes, systems and apparatuses described may be particularly useful for cold spraying delicate workpieces such as 3D printed static mixers.

    FORMATION, REPAIR AND MODIFICATION OF LAY UP TOOLS
    230.
    发明申请
    FORMATION, REPAIR AND MODIFICATION OF LAY UP TOOLS 审中-公开

    公开(公告)号：US20180281317A1

    公开(公告)日：2018-10-04

    申请号：US16001232

    申请日：2018-06-06

    Applicant: Commonwealth Scientific and Industrial Research Organisation

    Inventor： Stefan Gulizia ,  Mahnaz Jahedi ,  Chull Hee Oh ,  Enzo Luccio Stefano Salvatore Gulizia

    IPC: B29C70/30 ,  C23C24/04 ,  C22C38/08 ,  C22C38/04 ,  B05D1/12 ,  C22C38/02 ,  B29C33/56 ,  B29C33/38 ,  B29L31/28

    Abstract: A composite lay up tool comprising a metal faceplate (12) on a support member (13), wherein the faceplate has been formed by cold-gas dynamic spraying of particles of the metal onto a substrate and wherein the support member is compatible with the faceplate and comprises a casting of a ceramic composition. A process for forming the tool is disclosed. In one aspect, a castable ceramic composition comprises a binder and an aggregate component mixable with water to form a slurry ready for casting, wherein the aggregate component is one of, or a mixture of, fused silica and a particulate metal alloy, and the binder and aggregate component are present in the proportions 10-50 wt % and 90-50 wt % based on the dry weight of the composition. Also disclosed is a process for producing a faceplate for a lay up tool, which process comprises cold-gas dynamic spraying of particles of a nickel-iron alloy onto a substrate to form a faceplate of the nickel-iron alloy on the substrate, the faceplate being of a thickness in the range 2 to 10 mm. Further disclosed is a process for depositing a metal on a faceplate of a lay up tool in which the faceplate is formed of a nickel-iron alloy, which process comprises preparing an area of a surface of the faceplate to effect cleaning and conditioning of the area to accept and adhere to cold-gas dynamic sprayed particles, and cold-gas dynamic spraying particles of the metal onto the cleaned and conditioned area, wherein the metal is a nickel-iron alloy selected to be compatible with the faceplate.

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