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公开(公告)号：US11065798B2
公开(公告)日：2021-07-20
申请号：US15758911
申请日：2016-09-09
Applicant: COLORMATRIX HOLDINGS, INC.
Inventor： Brian Jones , David Whitehead , Ian Campbell , Harry Baker
IPC: B29C48/285 , F04C11/00 , B29C48/29 , F04C2/107 , F04C13/00 , F04C14/24 , B29K105/00
Abstract: Injection apparatus for injecting a liquid formulation into a molten polymer at high pressure includes a reservoir containing liquid formulation at ambient temperature and pressure which is arrange to flood-feed pump body 26 of a first progressing cavity pump (pcp) (4). The first pcp (4) is driven by motor (6) and is arranged to accurately meter the liquid formulation into a second pcp (8) which is downstream of the first pcp and is arranged to increase the pressure of the liquid formulation by 200 bar or more. Downstream of pump (8) is a delivery valve (14) arranged to control passage of liquid formulation, via outlet (17), into pressurised molten polymer stream (75) which is present in an extruder (77).
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公开(公告)号：US11618972B2
公开(公告)日：2023-04-04
申请号：US16488824
申请日：2018-02-23
Applicant: COLORMATRIX HOLDINGS, INC.
Inventor： Brian Jones , David Whitehead , Ian Campbell
Abstract: Injector (14) for injecting a liquid formulation into a molten polymer includes outlet (21) at one end and, at its other end, is arranged to be connected to upstream conduit (25) via a coupling housing (26) so that liquid formulation can pass from conduit into the injector, and further includes an elongate conduit (27) in which an elongate pin is slideably arranged being capable of expelling all liquid formulation from conduit. To address the risk the outlet could become blocked in use, whilst avoiding the need to depressurize and/or stop the flow or polymer in extruder (19), the injection apparatus includes a spool (34) which is rotatably mounted within wall (35) of the extruder and is arranged to be rotated about an axis which extends substantially perpendicularly to the elongate extent of the extruder through which a polymer stream (18) flows. The spool may be moved between a first configuration and a second configuration wherein a flow path is interrupted, but wherein molten polymer continues to flow in said polymer flow conduit.
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3.发明申请公开(公告)号：US20190039276A1
公开(公告)日：2019-02-07
申请号：US15758911
申请日：2006-09-09
Applicant: COLORMATRIX HOLDINGS, INC.
Inventor： Brian Jones , David Whitehead , Ian Campbell , Harry Baker
Abstract: Injection apparatus for injecting a liquid formulation into a molten polymer at high pressure includes a reservoir containing liquid formulation at ambient temperature and pressure which is arrange to flood-feed pump body 26 of a first progressing cavity pump (pep) 4. The first pep 4 is driven by motor 6 and is arranged to accurately meter the liquid formulation into a second pep 8 which is downstream of the first pep and is arranged to increase the pressure of the liquid formulation by 200 bar or more. Downstream of pump 8 is a delivery valve 14 arranged to control passage of liquid formulation, via outlet 17, into pressurised molten polymer stream 75 which is present in an extruder 77.
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公开(公告)号：US10947969B2
公开(公告)日：2021-03-16
申请号：US14980724
申请日：2014-06-26
Applicant: COLORMATRIX HOLDINGS, INC.
Inventor： Andrew Overend , Ian Campbell , Brian Jones
Abstract: High pressure injection apparatus (2) for addition of a liquid formulation into a melt stream comprises a first pump which is arranged to accurately meter the liquid formulation (including highly loaded formulations comprising solids comprising particles of relatively large size) and a second pump which boosts the pressure of the formulation to that of the melt stream into which it is to be injected. In an embodiment, the apparatus includes a tank (4) for initially receiving liquid formulation. The tank is subjected to ambient temperature and pressure and need not be stirred or otherwise agitated. The tank is arranged to deliver the formulation via pipe (6) into a first pump (8) (which may be a diaphragm pump or a progressing cavity pump). The pump is arranged to work at a pressure up to 120 bar to boost pressure. Downstream of pump (8), a pipe (10) is arranged to deliver formulation from the pump (8) to a gear pump (12), driven by a motor (13). The gear pump acts to meter the liquid formulation. In an alternative embodiment, apparatus may include a progressing cavity pump to meter formulation and a gear pump to increase pressure. The apparatus may be used to inject a fluid formulation into a melted polymeric material.
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