Colormatrix Holdings, Inc.

Colormatrix Europe Limited

Emerson & Renwick Limited

Brian Stewart Jones

Harry Baker

Ian Campbell

David Whitehead

Andrew Stuart Overend

John Pickles

Keith A Bell

Mark Frost

Sergio Malorni

Colin Hargreaves

David Hargreaves

David Loftus

Michael Alexander Pratt

Mark Dix-baker

Jon Pickle

Jon Pickles

Apparatusfor dosing a liquid colour formulation into polymer includes a weighing platformwhich is supported on a pair of load cellswhich are, in turn, supported on a base. A reservoircontains liquid colour formulation. A pumpis arranged to pump liquid formulation, via a tube, to an extruder or injection moulding machine. Above inletis a delivery packwhich includes a bag-in-a-box arrangement. The delivery packincludes a transfer pumpassociated with an outlet of the receptacle. A transfer pump motoris arranged to be engaged with the transfer pumpand operated so that liquid formulation can be pumped from the receptacleinto reservoiracross an air gapdefined between the transfer pumpand the inletof reservoir. There is no pipe, tube or other conduit through which liquid formulation passes on travel between delivery packand reservoir

Apparatus and method for dosing a fluid formulation into a polymeric material

Injector () for injecting a liquid formulation into a molten polymer includes outlet () at one end and, at its other end, is arranged to be connected to upstream conduit () via a coupling housing () so that liquid formulation can pass from conduit into the injector, and further includes an elongate conduit () 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 (), the injection apparatus includes a spool () which is rotatably mounted within wall () 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 () 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.

Method of and apparatus for injecting a liquid formulation into a molten polymer

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 bodyof a first progressing cavity pump (pcp) (). The first pcp () is driven by motor () and is arranged to accurately meter the liquid formulation into a second pcp () 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 () is a delivery valve () arranged to control passage of liquid formulation, via outlet (), into pressurised molten polymer stream () which is present in an extruder ().

Apparatus and method for injecting a fluid formulation into a melted polymeric material

High pressure injection apparatus () 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 () 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 () into a first pump () (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 (), a pipe () is arranged to deliver formulation from the pump () to a gear pump (), driven by a motor (). 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.

Polymeric materials

A receptacle includes a cardboard box in which is arranged a plastics container. A first securement element associated with the plastics container is positioned in a gap defined by the cardboard of the box thereby to restrict movement of the container within the box.

Formulations

A reservoir assembly () comprises a container (), a support assembly () on which the container () is mounted and fixed and a rotary electric vibrator device () coupled to the support assembly (). The container holds a shear thinning additive for a plastics material. The reservoir assembly is arranged so that on operation of the device (), an appropriate frequency and amplitude of vibration is applied to the container () and, therefore, its contents. As a result, a liquid dispersion in the container is shear thinned and recovery of dispersion from the container is increased.

Delivering liquid additive

Apparatus for delivering a fluid to a location includes a mechanism for supplying fluid connected to a reservoir. The reservoir has a variable volume and includes an outlet via which fluid may be delivered to the location.

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Newton-le-Willows, United Kingdom

Brian Stewart Jones