公开(公告)号：US20210053253A1

公开(公告)日：2021-02-25

申请号：US16979085

申请日：2019-02-28

Applicant: COLORMATRIX HOLDINGS, INC.

Inventor： Brian JONES ,  David WHITEHEAD ,  Ian CAMPBELL ,  David LOFTUS ,  Andrew OVEREND

IPC: B29B7/82 ,  B29B7/60 ,  B29B7/72 ,  B29B7/76 ,  B29B7/94 ,  B29C48/29 ,  B29C48/285 ,  B29C48/385 ,  B29C48/797 ,  B29C48/39

Abstract: Polymeric Materials An injector (14) for injecting liquid formulation into molten polymer includes a conduit (117) having regions (44, 46) which are secured within a wall of an extruder (19). Conduit (117) includes an annular collar (120) having an upwardly facing annular surface (122) which is arranged to bear against part of a sleeve nut (124). Conduit (117) is arranged within a port (125) which includes a screw-threaded wall (126). The sleeve nut (124) includes a cylindrical body (146) having an inwardly facing cylindrical wall which is arranged to define a cylindrical air gap (148) between itself and an outer wall (147) of conduit (117). Region (150) of the sleeve nut is screw-threadedly engaged in wall (126) of the extruder. In use, cool compressed air is introduced into the assembly in the direction of arrow (170) and it flows through the assembly to cool it.

公开(公告)号：US20200032421A1

公开(公告)日：2020-01-30

申请号：US16488824

申请日：2018-02-23

Applicant: COLORMATRIX HOLDINGS, INC.

Inventor： Brian JONES ,  David WHITEHEAD ,  Ian CAMPBELL

IPC: D01D1/06 ,  D01D5/08

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.