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  • B29C48/00
    		•  Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor(extrusion blow-moulding B29C49/04) HB CC 4F207
  • B29C48/02
    		•  .Small extruding apparatus, e.g. handheld, toy or laboratory extruders HB CC 4F207
  • B29C48/025
    		•  .General arrangement or layout of plant HB CC 4F207
  • B29C48/03
    		•  .characterised by the shape of the extruded material at extrusion HB CC 4F207
  • B29C48/04
    		•  ..Particle-shaped(making granules B29B9/00) HB CC 4F207
  • B29C48/05
    		•  ..Filamentary, e.g. strands HB CC 4F207
  • B29C48/06
    		•  ..Rod-shaped HB CC 4F207
  • B29C48/07
    		•  ..Flat, e.g. panels HB CC 4F207
  • B29C48/08
    		•  ...flexible, e.g. films HB CC 4F207
  • B29C48/09
    		•  ..Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels HB CC 4F207
  • B29C48/10
    		•  ...flexible, e.g. blown foils HB CC 4F207
  • B29C48/11
    		•  ...comprising two or more partially or fully enclosed cavities, e.g. honeycomb-shaped HB CC 4F207
  • B29C48/12
    		•  ..Articles with an irregular circumference when viewed in cross-section, e.g. window profiles HB CC 4F207
  • B29C48/13
    		•  ..Articles with a cross-section varying in the longitudinal direction, e.g. corrugated pipes HB CC 4F207
  • B29C48/14
    		•  .characterised by the particular extruding conditions, e.g. in a modified atmosphere or by using vibration HB CC 4F207
  • B29C48/15
    		•  .incorporating preformed parts or layers, e.g. extrusion moulding around inserts HB CC 4F207
  • B29C48/151
    		•  ..Coating hollow articles HB CC 4F207
  • B29C48/152
    		•  ...the inner surfaces thereof HB CC 4F207
  • B29C48/153
    		•  ....Coating both inner and outer surfaces HB CC 4F207
  • B29C48/154
    		•  ..Coating solid articles, i.e. non-hollow articles HB CC 4F207
  • B29C48/155
    		•  ...Partial coating thereof HB CC 4F207
  • B29C48/156
    		•  ..Coating two or more articles simultaneously HB CC 4F207
  • B29C48/157
    		•  ..Coating linked inserts, e.g. chains HB CC 4F207
  • B29C48/16
    		•  .Articles comprising two or more components, e.g. co-extruded layers HB CC 4F207
  • B29C48/17
    		•  ..the components having different colours HB CC 4F207
  • B29C48/18
    		•  ..the components being layers HB CC 4F207
  • B29C48/19
    		•  ...the layers being joined at their edges HB CC 4F207
  • B29C48/20
    		•  ...one of the layers being a strip, e.g. a partially embedded strip HB CC 4F207
  • B29C48/21
    		•  ...the layers being joined at their surfaces HB CC 4F207
  • B29C48/22
    		•  ...with means connecting the layers, e.g. tie layers or undercuts HB CC 4F207
  • B29C48/23
    		•  ...with means for avoiding adhesion of the layers, e.g. for forming peelable layers HB CC 4F207
  • B29C48/25
    		•  .Component parts, details or accessories; Auxiliary operations HB CC 4F207
  • B29C48/255
    		•  ..Flow control means, e.g. valves(flow dividers B29C48/695) HB CC 4F207
  • B29C48/265
    		•  ..Support structures or bases for apparatus, e.g. frames HB CC 4F207
  • B29C48/27
    		•  ..Cleaning; Purging; Avoiding contamination HB CC 4F207
  • B29C48/275
    		•  ..Recovery or reuse of energy or materials HB CC 4F207
  • B29C48/28
    		•  ..Storing of extruded material, e.g. by winding up or stacking HB CC 4F207
  • B29C48/285
    		•  ..Feeding the extrusion material to the extruder HB CC 4F207
  • B29C48/29
    		•  ...in liquid form HB CC 4F207
  • B29C48/295
    		•  ...in gaseous form HB CC 4F207
  • B29C48/30
    		•  ..Extrusion nozzles or dies(extrusion characterised by the shape or cross-section of the extruded article B29C48/03) HB CC 4F207
  • B29C48/305
    		•  ...having a wide opening, e.g. for forming sheets HB CC 4F207
  • B29C48/31
    		•  ....adjustable HB CC 4F207
  • B29C48/315
    		•  ....with parts oscillating relative to each other HB CC 4F207
  • B29C48/32
    		•  ...with annular openings, e.g. for forming tubular articles HB CC 4F207
  • B29C48/325
    		•  ....adjustable HB CC 4F207
  • B29C48/33
    		•  ....with parts rotatable relative to each other HB CC 4F207
  • B29C48/335
    		•  ....Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles HB CC 4F207
  • B29C48/34
    		•  ....Cross-head annular extrusion nozzles, i.e. for simultaneously receiving moulding material and the preform to be coated HB CC 4F207
  • B29C48/345
    		•  ...Extrusion nozzles comprising two or more adjacently arranged ports, for simultaneously extruding multiple strands, e.g. for pelletising HB CC 4F207
  • B29C48/35
    		•  ...with rollers HB CC 4F207
  • B29C48/355
    		•  ..Conveyors for extruded articles HB CC 4F207
  • B29C48/36
    		•  ..Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die HB CC 4F207
  • B29C48/365
    		•  ...using pumps, e.g. piston pumps HB CC 4F207
  • B29C48/37
    		•  ....Gear pumps HB CC 4F207
  • B29C48/375
    		•  ...Plasticisers, homogenisers or feeders comprising two or more stages HB CC 4F207
  • B29C48/38
    		•  ....using two or more serially arranged screws in the same barrel HB CC 4F207
  • B29C48/385
    		•  ....using two or more serially arranged screws in separate barrels HB CC 4F207
  • B29C48/39
    		•  ....a first extruder feeding the melt into an intermediate location of a second extruder HB CC 4F207
  • B29C48/395
    		•  ...using screws surrounded by a cooperating barrel, e.g. single screw extruders HB CC 4F207
  • B29C48/40
    		•  ....using two or more parallel screws, e.g. twin screw extruders HB CC 4F207
  • B29C48/405
    		•  .....Intermeshing co-rotating screws HB CC 4F207
  • B29C48/41
    		•  .....Intermeshing counter-rotating screws HB CC 4F207
  • B29C48/415
    		•  .....and having partially non-intermeshing screws HB CC 4F207
  • B29C48/42
    		•  .....Non-identical or non-mirrored screws HB CC 4F207
  • B29C48/425
    		•  .....using three or more screws(serially arranged screws B29C48/38, B29C48/385) HB CC 4F207
  • B29C48/43
    		•  ......Ring extruders HB CC 4F207
  • B29C48/435
    		•  .....Sub-screws HB CC 4F207
  • B29C48/44
    		•  ......Planetary screws HB CC 4F207
  • B29C48/445
    		•  ....Coaxially arranged screws, i.e. one within the other HB CC 4F207
  • B29C48/45
    		•  ....Axially movable screws HB CC 4F207
  • B29C48/455
    		•  ....Screws arranged to convey material towards each other, e.g. separate screws arranged after each other and feeding in opposite directions HB CC 4F207
  • B29C48/46
    		•  ...using vanes HB CC 4F207
  • B29C48/465
    		•  ...using rollers HB CC 4F207
  • B29C48/47
    		•  ...using discs, e.g. plasticising the moulding material by passing it between a fixed and a rotating disc that are coaxially arranged HB CC 4F207
  • B29C48/475
    		•  ...using pistons, accumulators or press rams HB CC 4F207
  • B29C48/48
    		•  ....Two or more rams or pistons HB CC 4F207
  • B29C48/485
    		•  ....Hydrostatic extrusion HB CC 4F207
  • B29C48/49
    		•  ...using two or more extruders to feed one die or nozzle HB CC 4F207
  • B29C48/495
    		•  ....Feedblocks(extrusion moulding of multi-component articles B29C48/16) HB CC 4F207
  • B29C48/50
    		•  ...Details of extruders HB CC 4F207
  • B29C48/505
    		•  ....Screws HB CC 4F207
  • B29C48/51
    		•  .....with internal flow passages, e.g. for molten material HB CC 4F207
  • B29C48/515
    		•  ......for auxiliary fluids, e.g. foaming agents HB CC 4F207
  • B29C48/52
    		•  .....with an outer diameter varying along the longitudinal axis, e.g. for obtaining different thread clearance HB CC 4F207
  • B29C48/525
    		•  ......Conical screws HB CC 4F207
  • B29C48/53
    		•  .....having a varying channel depth, e.g. varying the diameter of the longitudinal screw trunk HB CC 4F207
  • B29C48/535
    		•  .....with thread pitch varying along the longitudinal axis HB CC 4F207
  • B29C48/54
    		•  .....with additional forward-feeding elements HB CC 4F207
  • B29C48/55
    		•  .....having reverse-feeding elements HB CC 4F207
  • B29C48/56
    		•  .....having grooves or cavities other than the thread or the channel HB CC 4F207
  • B29C48/565
    		•  .....having projections other than the thread, e.g. pins HB CC 4F207
  • B29C48/57
    		•  .....provided with kneading disc-like elements, e.g. with oval-shaped elements HB CC 4F207
  • B29C48/575
    		•  .....provided with elements of a generally circular cross-section for shearing the melt, i.e. shear-ring elements HB CC 4F207
  • B29C48/58
    		•  .....provided with seal ring elements, i.e. elements of generally circular and tapered shape for preventing the back flow of the melt HB CC 4F207
  • B29C48/585
    		•  .....provided with gears interacting with the flow HB CC 4F207
  • B29C48/59
    		•  .....characterised by details of the thread, i.e. the shape of a single thread of the material-feeding screw HB CC 4F207
  • B29C48/595
    		•  ......the thread having non-uniform width HB CC 4F207
  • B29C48/60
    		•  ......Thread tops HB CC 4F207
  • B29C48/605
    		•  ......the thread being discontinuous HB CC 4F207
  • B29C48/61
    		•  ......Threads having wavy profiles HB CC 4F207
  • B29C48/615
    		•  ......Threads having varying helix angles HB CC 4F207
  • B29C48/62
    		•  .....characterised by the shape of the thread channel, e.g. U-shaped HB CC 4F207
  • B29C48/625
    		•  .....characterised by the ratio of the threaded length of the screw to its outside diameter [L/D ratio] HB CC 4F207
  • B29C48/63
    		•  .....having sections without mixing elements or threads, i.e. having cylinder shaped sections HB CC 4F207
  • B29C48/635
    		•  .....Eccentrically rotating screws; Screws revolving around an axis other than their central axis HB CC 4F207
  • B29C48/64
    		•  .....Screws with two or more threads HB CC 4F207
  • B29C48/645
    		•  ......neighbouring threads and channels having identical configurations HB CC 4F207
  • B29C48/65
    		•  ......neighbouring threads or channels having different configurations, e.g. one thread being lower than its neighbouring thread HB CC 4F207
  • B29C48/655
    		•  ......having three or more threads HB CC 4F207
  • B29C48/66
    		•  ......Barrier threads, i.e. comprising primary and secondary threads whereby the secondary thread provides clearance to the barrel for material movement HB CC 4F207
  • B29C48/67
    		•  .....having incorporated mixing devices not provided for in groups B29C48/52 to B29C48/66 HB CC 4F207
  • B29C48/68
    		•  ....Barrels or cylinders HB CC 4F207
  • B29C48/685
    		•  .....characterised by their inner surfaces, e.g. having grooves, projections or threads HB CC 4F207
  • B29C48/69
    		•  ....Filters or screens for the moulding material HB CC 4F207
  • B29C48/691
    		•  .....Arrangements for replacing filters, e.g. with two parallel filters for alternate use HB CC 4F207
  • B29C48/692
    		•  .....in the form of webs displaceable for using adjacent areas consecutively HB CC 4F207
  • B29C48/693
    		•  .....Substantially flat filters mounted at the end of an extruder screw perpendicular to the feed axis HB CC 4F207
  • B29C48/694
    		•  .....Cylindrical or conical filters HB CC 4F207
  • B29C48/695
    		•  ....Flow dividers, e.g. breaker plates HB CC 4F207
  • B29C48/70
    		•  .....comprising means for dividing, distributing and recombining melt flows HB CC 4F207
  • B29C48/71
    		•  ......for layer multiplication(extrusion of multi-component articles B29C48/16) HB CC 4F207
  • B29C48/72
    		•  ....Feedback means, i.e. part of the molten material being fed back into upstream stages of the extruder HB CC 4F207
  • B29C48/74
    		•  ....Bypassing means, i.e. part of the molten material being diverted into downstream stages of the extruder HB CC 4F207
  • B29C48/76
    		•  ....Venting means; Degassing means HB CC 4F207
  • B29C48/78
    		•  ..Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling HB CC 4F207
  • B29C48/79
    		•  ...of preformed parts or layers HB CC 4F207
  • B29C48/793
    		•  ...upstream of the plasticising zone, e.g. heating in the hopper HB CC 4F207
  • B29C48/797
    		•  ....Cooling HB CC 4F207
  • B29C48/80
    		•  ...at the plasticising zone, e.g. by heating cylinders HB CC 4F207
  • B29C48/82
    		•  ....Cooling(B29C48/84 takes precedence) HB CC 4F207
  • B29C48/84
    		•  ....by heating or cooling the feeding screws(for hollow screws B29C48/515) HB CC 4F207
  • B29C48/85
    		•  .....Cooling HB CC 4F207
  • B29C48/86
    		•  ...at the nozzle zone HB CC 4F207
  • B29C48/87
    		•  ....Cooling HB CC 4F207
  • B29C48/875
    		•  ...for achieving a non-uniform temperature distribution, e.g. using barrels having both cooling and heating zones HB CC 4F207
  • B29C48/88
    		•  ..Thermal treatment of the stream of extruded material, e.g. cooling;
    		HB CC 4F207
  • B29C48/885
    		•  ...External treatment, e.g. by using air rings for cooling tubular films HB CC 4F207
  • B29C48/89
    		•  ...Internal treatment, e.g. by applying an internal cooling fluid stream HB CC 4F207
  • B29C48/90
    		•  ...with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article HB CC 4F207
  • B29C48/91
    		•  ...Heating, e.g. for cross linking HB CC 4F207
  • B29C48/92
    		•  ..Measuring, controlling or regulating HB CC 4F207
  • B29C48/94
    		•  ..Lubricating HB CC 4F207
  • B29C48/95
    		•  ...by adding lubricant to the moulding material HB CC 4F207
  • B29C48/96
    		•  ..Safety devices HB CC 4F207
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