B
SECTION B — PERFORMING OPERATIONS; TRANSPORTING
 B01 - 
B07
Subsection index
LIQUID/LIQUID, LIQUID/GAS OR GAS/GAS SEPARATION
Method
General operationsB01D
by centrifugal force, using centrifuges or free-vortex apparatusB01D
using magnetic or electrostatic effectB03C
Apparatus
General operationsB01D
by centrifugal force, using centrifuges or free-vortex apparatusB04B, B04C
using magnetic or electrostatic effectB03C
SOLID/LIQUID OR SOLID/GAS SEPARATION
Method
General operationsB01D
by centrifugal forceB01D
using centrifuges or free-vortex apparatusB01D
using magnetic or electrostatic effectB03C
Apparatus
General operationsB01D
by centrifugal forceB01D
using centrifuges or free-vortex apparatusB04B, B04C
using magnetic or electrostatic effectB03C
SOLID/SOLID SEPARATION
Method
Dry methods
material in bulkB07B
Individual sortingB07C
Screening, sifting, pneumatic sortingB07B
using pneumatic tables or jigsB03B
by magnetic or electrostatic effectB03C
by centrifugal forceB07B
using centrifuges or free-vortex apparatusB07B
Wet methods
General operationsB03B
flotation, differential sedimentationB03D
screeningB07B
Combinations Dry methods - wet methodsB03B
Apparatus
Dry methods
material in bulkB07B
Individual sortingB07C
Screening, sifting, pneumatic sortingB07B
using pneumatic tables or jigsB03B
by magnetic or electrostatic effectB03C
by centrifugal forceB07B
using centrifuges or free-vortex apparatusB04B, B04C
Wet methods
General operationsB03B
flotation, differential sedimentationB03D
screeningB07B
Combinations Dry methods - wet methodsB03B
  
SHAPING
 B29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL (processing doughs A21C; working chocolate A23G; casting of metals B22; working cement, clay B28; chemical aspects, see section C, particularly C08; working glass C03B; candle making C11C 5/00; making soap C11D 13/00; manufacture of artificial filaments, threads, fibres, bristles or ribbons D01D, D01F; manufacture of articles from cellulosic fibrous suspensions or from papier-mâche D21J)
 B29

Note(s)

  1. This class does not cover the working of plastics sheet material in a manner analogous to the working of paper, which is covered by class B31[4]
  2. In this class, the following term is used with the meaning indicated:
    • "plastics" means macromolecular compounds or compositions based on such compounds.
  3. In this class, the following rules apply:
    1. The working of plastics is, as far as possible, classified primarily according to the particular shaping technique used, e.g. in subclass B29C[4]
    2. A product is not classified in this class unless it results from a technique which is covered by this class.
    3. Classification according to production of particular articles in subclass B29D is restricted to:
      1. aspects which are characteristic for the production of a particular article, and not classifiable in subclass B29B or B29C;
      2. combined operations for making the particular article which are not fully classifiable in subclass B29C[4]
 B29C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (working in the manner of metal B23; grinding, polishing B24; cutting B26D, B26F; making preforms B29B 11/00)  [4]
 B29C

Note(s)

  1. Attention is drawn to Note (3) following the title of class B29.  [4]
  2. Layered products or laminating methods are further classified in subclass B32B.  [4]
  3. In this subclass:
 B29C
Subclass index
COMPONENT PARTS, DETAILS ACCESSORIES, AUXILIARY OPERATIONS
Moulds or cores 33/00
Heating, cooling, curing 35/00
Other features 31/00, 37/00
MOULDING
by casting, by coating a mould 39/00, 41/00
Compression moulding 43/00
by internal pressure 44/00
Injection moulding 45/00
Extrusion moulding 47/00
Blow-moulding 49/00
Thermoforming 51/00
OTHER SHAPING TECHNIQUES
Bending, folding, twisting, straightening, flattening 53/00
Stretching 55/00
Liberation of internal stresses 61/00
Other techniques 67/00
JOINING 65/00
PARTICULAR APPLICATIONS
Shaping tube ends 57/00
Surface shaping 59/00
Lining or sheathing 63/00
Shaping composites 70/00
COMBINATIONS OF SHAPING TECHNIQUES 69/00
AFTER-TREATMENT 71/00
REPAIRING 73/00
 B29C 31/00 - 
B29C 37/00
Component parts, details or accessories; Auxiliary operations  [4]
P:200 B29C 31/00
Handling, e.g. feeding of the material to be shaped (in general B65G)  [4]
 B29C 31/04
·  Feeding, e.g. into a mould cavity (to presses in general B30B 15/30)  [4]
P:210 B29C 33/00
Moulds or cores; Details thereof or accessories therefor  [4]
 B29C 33/02
·  with incorporated heating or cooling means  [4]
 B29C 33/04
·  ·  using liquids, gas or steam  [4]
 B29C 33/06
·  ·  using radiation  [4]
 B29C 33/08
·  ·  for dielectric heating  [4]
 B29C 33/10
·  with incorporated venting means  [4]
 B29C 33/12
·  with incorporated means for positioning inserts, e.g. labels  [4]
 B29C 33/14
·  ·  against the mould wall  [4]
 B29C 33/20
·  Opening, closing or clamping  [4]
 B29C 33/22
·  ·  by rectilinear movement  [4]
 B29C 33/30
·  Mounting, exchanging or centering  [4]
 B29C 33/38
·  characterised by the material or the manufacturing process (B29C 33/44 takes precedence; manufacture of moulds or parts thereof from metal B22, B23)  [4]
 B29C 33/40
·  ·  Plastics, e.g. foam, rubber  [4]
 B29C 33/42
·  characterised by the shape of the moulding surface, e.g. ribs, grooves  [4]
 B29C 33/44
·  with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles  [4]
 B29C 33/46
·  ·  using fluid pressure  [4]
 B29C 33/48
·  ·  with means for collapsing or disassembling  [4]
 B29C 33/52
·  ·  soluble or fusible  [4]
 B29C 33/54
·  ·  made of powdered or granular material  [4]
 B29C 33/56
·  Coatings; Releasing, lubricating or separating agents  [4]
 B29C 33/70
·  Maintenance  [4]
 B29C 33/76
·  Cores (B29C 33/02-B29C 33/70 take precedence)  [4]
P:220 B29C 35/00
Heating, cooling or curing, e.g. crosslinking, vulcanising; Apparatus therefor (moulds with incorporated heating or cooling means B29C 33/02; curing devices for plastics dental prostheses A61C 13/00; before moulding B29B 13/00; chemical aspects C08J 3/00)  [4]
 B29C 35/02
·  Heating or curing, e.g. crosslinking, vulcanising (cold vulcanisation B29C 35/00)  [4]
 B29C 35/04
·  ·  using liquids, gas or steam  [4]
 B29C 35/08
·  ·  by wave energy or particle radiation  [4]
 B29C 35/10
·  ·  ·  for articles of indefinite length  [4]
 B29C 35/12
·  ·  Dielectric heating  [4]
P:230 B29C 37/00
Component parts, details, accessories or auxiliary operations, not covered by group B29C 33/00 or B29C 35/00  [4]
 B29C 39/00 - 
B29C 70/00
Particular shaping techniques, e.g. moulding, joining; Apparatus therefor  [4]
P:60 B29C 39/00
Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor (B29C 41/00 takes precedence)  [4]
 B29C 39/02
·  for making articles of definite length, i.e. discrete articles  [4]
 B29C 39/04
·  ·  using movable moulds (B29C 41/02 takes precedence)  [4]
 B29C 39/10
·  ·  incorporating preformed parts or layers, e.g. casting around inserts or for coating articles  [4]
 B29C 39/12
·  ·  Making multilayered or multicoloured articles  [4]
 B29C 39/22
·  Component parts, details or accessories; Auxiliary operations  [4]
 B29C 39/24
·  ·  Feeding the material into the mould  [4]
 B29C 39/26
·  ·  Moulds or cores  [4]
 B29C 39/28
·  ·  ·  with means to avoid flashes  [4]
 B29C 39/30
·  ·  ·  with means for cutting the article  [4]
 B29C 39/32
·  ·  ·  with joints or the like for making the mould impervious  [4]
 B29C 39/34
·  ·  ·  for undercut articles  [4]
 B29C 39/38
·  ·  Heating or cooling  [4]
 B29C 39/42
·  ·  Casting under special conditions, e.g. vacuum  [4]
P:50 B29C 41/00
Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor (with compacting pressure B29C 43/00)  [4]
 B29C 41/02
·  for making articles of definite length, i.e. discrete articles  [4]
 B29C 41/04
·  ·  Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould  [4]
 B29C 41/08
·  ·  Coating a former, core or other substrate by spraying or fluidisation, e.g. spraying powder  [4]
 B29C 41/12
·  ·  Spreading-out the material on a substrate  [4]
 B29C 41/14
·  ·  Dipping a core  [4]
 B29C 41/18
·  ·  Slush casting, i.e. pouring moulding material into a hollow mould with excess material being poured off  [4]
 B29C 41/22
·  ·  Making multilayered or multicoloured articles  [4]
 B29C 41/34
·  Component parts, details or accessories; Auxiliary operations  [4]
P:40 B29C 43/00
Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor (shaping or impregnating by compression composites comprising reinforcements other than fibres of short length B29C 70/04; presses in general B30B)  [4,6]
 B29C 43/02
·  of articles of definite length, i.e. discrete articles  [4]
 B29C 43/04
·  ·  using movable moulds  [4]
 B29C 43/10
·  ·  Isostatic pressing, i.e. using non-rigid pressure-exerting members against rigid parts or dies  [4]
 B29C 43/14
·  ·  in several steps  [4]
 B29C 43/16
·  ·  Forging  [4]
 B29C 43/18
·  ·  incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles  [4]
 B29C 43/20
·  ·  Making multilayered or multicoloured articles  [4]
 B29C 43/22
·  of articles of indefinite length  [4]
 B29C 43/24
·  ·  Calendering  [4]
 B29C 43/32
·  Component parts, details or accessories; Auxiliary operations  [4]
 B29C 43/34
·  ·  Feeding the material to the mould or the compression means  [4]
 B29C 43/36
·  ·  Moulds for making articles of definite length, i.e. discrete articles  [4]
 B29C 43/44
·  ·  Compression means for making articles of indefinite length  [4]
 B29C 43/52
·  ·  Heating or cooling  [4]
 B29C 43/58
·  ·  Measuring, controlling or regulating  [4]
P:70 B29C 44/00
Shaping by internal pressure generated in the material, e.g. swelling, foaming  [6]
 B29C 44/02
·  for articles of definite length, i.e. discrete articles  [6]
 B29C 44/34
·  Component parts, details or accessories; Auxiliary operations  [6]
P:80 B29C 45/00
Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor (injection blow-moulding B29C 49/06)  [4]
 B29C 45/02
·  Transfer moulding, i.e. transferring the required volume of moulding material by a plunger from a "shot" cavity into a mould cavity  [4]
 B29C 45/03
·  Injection moulding apparatus (transfer moulding B29C 45/02)  [4]
 B29C 45/14
·  incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles  [4]
 B29C 45/16
·  Making multilayered or multicoloured articles  [4]
 B29C 45/17
·  Component parts, details or accessories; Auxiliary operations  [4]
 B29C 45/18
·  ·  Feeding the material into the injection moulding apparatus  [4]
 B29C 45/20
·  ·  Injection nozzles  [4]
 B29C 45/23
·  ·  ·  Feed stopping equipment  [4]
 B29C 45/26
·  ·  Moulds  [4]
 B29C 45/27
·  ·  ·  Sprue channels  [4]
 B29C 45/32
·  ·  ·  having several axially spaced mould cavities  [4]
 B29C 45/33
·  ·  ·  having transversely, e.g. radially, movable mould parts  [4]
 B29C 45/34
·  ·  ·  having venting means  [4]
 B29C 45/36
·  ·  ·  having means for locating or centering cores  [4]
 B29C 45/37
·  ·  ·  Mould cavity walls  [4]
 B29C 45/38
·  ·  Cutting-off equipment for sprues or ingates  [4]
 B29C 45/40
·  ·  Removing or ejecting moulded articles  [4]
 B29C 45/42
·  ·  ·  using means movable from outside the mould between mould parts  [4]
 B29C 45/43
·  ·  ·  using fluid under pressure  [4]
 B29C 45/44
·  ·  ·  for undercut articles  [4]
 B29C 45/46
·  ·  Means for plasticising or homogenising the moulding material or forcing it into the mould  [4]
 B29C 45/53
·  ·  ·  using injection ram or piston  [4]
 B29C 45/56
·  ·  ·  using mould parts movable during or after injection, e.g. injection-compression moulding  [4]
 B29C 45/57
·  ·  ·  Exerting after-pressure on the moulding material  [4]
 B29C 45/58
·  ·  ·  Details  [4]
 B29C 45/64
·  ·  Mould opening, closing or clamping devices  [4]
 B29C 45/66
·  ·  ·  mechanical  [4]
 B29C 45/67
·  ·  ·  hydraulic  [4]
 B29C 45/70
·  ·  Means for plasticising or homogenising the moulding material or forcing it into the mould, combined with mould opening, closing or clamping devices  [4]
 B29C 45/72
·  ·  Heating or cooling  [4]
 B29C 45/73
·  ·  ·  of the mould  [4]
 B29C 45/76
·  ·  Measuring, controlling or regulating  [4]
 B29C 45/77
·  ·  ·  of velocity or pressure of moulding material  [4]
 B29C 45/78
·  ·  ·  of temperature  [4]
 B29C 45/80
·  ·  ·  of relative position of mould parts  [4]
 B29C 45/82
·  ·  ·  Hydraulic circuits  [4]
 B29C 45/83
·  ·  Lubricating means  [4]
 B29C 45/84
·  ·  Safety devices  [4]
P:90 B29C 47/00
Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor (extrusion blow-moulding B29C 49/04; extrusion presses in general B30B 11/22)  [4]
 B29C 47/02
·  incorporating preformed parts or layers, e.g. extrusion moulding around inserts or for coating articles  [4]
 B29C 47/04
·  of multilayered or multicoloured articles  [4]
 B29C 47/06
·  ·  Multilayered articles  [4]
 B29C 47/08
·  Component parts, details or accessories; Auxiliary operations  [4]
 B29C 47/10
·  ·  Feeding the material to the extruder  [4]
 B29C 47/12
·  ·  Extrusion nozzles or dies  [4]
 B29C 47/14
·  ·  ·  with broad opening, e.g. for sheets  [4]
 B29C 47/16
·  ·  ·  ·  adjustable  [4]
 B29C 47/20
·  ·  ·  with annular opening, e.g. for tubular articles  [4]
 B29C 47/22
·  ·  ·  ·  adjustable  [4]
 B29C 47/26
·  ·  ·  ·  Multiple annular extrusion nozzles  [4]
 B29C 47/30
·  ·  ·  Multi-port extrusion nozzles  [4]
 B29C 47/36
·  ·  Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die  [4]
 B29C 47/38
·  ·  ·  using screws  [4]
 B29C 47/58
·  ·  ·  Details  [4]
 B29C 47/60
·  ·  ·  ·  Screws  [4]
 B29C 47/76
·  ·  ·  ·  Venting or degassing means  [4]
 B29C 47/78
·  ·  Heating or cooling the material to be extruded or the stream of extruded material  [4]
 B29C 47/88
·  ·  ·  Heating or cooling the stream of extruded material  [4]
 B29C 47/90
·  ·  ·  ·  with calibration or sizing  [4]
 B29C 47/92
·  ·  Measuring, controlling or regulating  [4]
P:100 B29C 49/00
Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor  [4]
 B29C 49/02
·  Combined blow-moulding and manufacture of the preform or the parison  [4]
 B29C 49/04
·  ·  Extrusion blow-moulding  [4]
 B29C 49/06
·  ·  Injection blow-moulding  [4]
 B29C 49/08
·  Biaxial stretching during blow-moulding  [4]
 B29C 49/20
·  of articles having inserts or reinforcements  [4]
 B29C 49/22
·  using multilayered preforms or parisons  [4]
 B29C 49/24
·  Lining or labelling  [4]
 B29C 49/28
·  Blow-moulding apparatus  [4]
 B29C 49/42
·  Component parts, details or accessories; Auxiliary operations  [4]
 B29C 49/48
·  ·  Moulds  [4]
 B29C 49/50
·  ·  ·  having cutting or deflashing means  [4]
 B29C 49/56
·  ·  Opening, closing or clamping means  [4]
 B29C 49/58
·  ·  Blowing means  [4]
 B29C 49/62
·  ·  Venting means  [4]
 B29C 49/64
·  ·  Heating or cooling preforms, parisons or blown articles  [4]
 B29C 49/78
·  ·  Measuring, controlling or regulating  [4]
P:110 B29C 51/00
Shaping by thermoforming, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor  [4]
 B29C 51/08
·  Deep-drawing or matched-mould forming, i.e. using mechanical means only  [4]
 B29C 51/10
·  Forming by pressure difference, e.g. vacuum  [4]
 B29C 51/14
·  using multilayered preforms or sheets  [4]
 B29C 51/18
·  Thermoforming apparatus  [4]
 B29C 51/26
·  Component parts, details or accessories; Auxiliary operations  [4]
 B29C 51/30
·  ·  Moulds  [4]
P:130 B29C 53/00
Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor (B29C 61/06 takes precedence; rim rolling of tube ends B29C 57/00)  [4]
P:140 B29C 55/00
Shaping by stretching, e.g. drawing through a die; Apparatus therefor (B29C 61/06 takes precedence)  [4]
 B29C 55/02
·  of plates or sheets  [4]
 B29C 55/04
·  ·  uniaxial, e.g. oblique  [4]
 B29C 55/10
·  ·  multiaxial  [4]
 B29C 55/12
·  ·  ·  biaxial  [4]
 B29C 55/14
·  ·  ·  ·  successively  [4]
 B29C 55/16
·  ·  ·  ·  simultaneously  [4]
 B29C 55/18
·  ·  by squeezing between surfaces, e.g. rollers  [4]
 B29C 55/20
·  ·  Edge clamps  [4]
 B29C 55/28
·  of blown tubular films, e.g. by inflation  [4]
P:150 B29C 57/00
Shaping of tube ends, e.g. flanging, belling, closing; Apparatus therefor  [4]
P:160 B29C 59/00
Surface shaping, e.g. embossing; Apparatus therefor  [4]
 B29C 59/02
·  by mechanical means, e.g. pressing  [4]
 B29C 59/04
·  ·  using rollers or endless belts  [4]
P:120 B29C 61/00
Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor (for surface shaping B29C 59/00; for lining articles B29C 63/38; for joining preformed parts B29C 65/00)  [4]
 B29C 61/06
·  Making preforms having internal stresses, e.g. plastic memory  [4]
P:170 B29C 63/00
Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor (B29C 73/00 takes precedence; by blowing B29C 49/00; by thermoforming B29C 51/00)  [4,5]
 B29C 63/02
·  using sheet or web-like material (B29C 63/26 takes precedence)  [4]
 B29C 63/26
·  Lining or sheathing of internal surfaces (B29C 63/38 takes precedence)  [4]
 B29C 63/34
·  ·  using tubular layer or sheathings  [4]
 B29C 63/36
·  ·  ·  being turned inside out  [4]
 B29C 63/38
·  by liberation of internal stresses  [4]
P:30 B29C 65/00
Joining of preformed parts; Apparatus therefor (for making boxes, cartons, envelopes or bags B31B; for sealing or securing package folds or closures B65B 51/00; joining constructional elements, in general F16B; splicing of light guides G02B 6/255)  [4,5]
 B29C 65/02
·  by heating, with or without pressure  [4]
 B29C 65/04
·  ·  Dielectric heating, e.g. high-frequency welding  [4]
 B29C 65/06
·  ·  using friction, e.g. spin welding  [4]
 B29C 65/08
·  ·  using ultrasonic vibrations  [4]
 B29C 65/10
·  ·  using hot gases  [4]
 B29C 65/14
·  ·  using wave energy or particle radiation  [4]
 B29C 65/18
·  ·  using heated tool  [4]
 B29C 65/34
·  ·  using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"  [4]
 B29C 65/38
·  ·  Impulse heating  [4]
 B29C 65/40
·  ·  Applying molten plastics, e.g. hot melt (using welding bar B29C 65/10; by moulding B29C 65/70)  [4]
 B29C 65/44
·  ·  Joining a heated non-plastics element to a plastics element  [4]
 B29C 65/48
·  using adhesives (heat-activated B29C 65/02; hot melts B29C 65/40; non-mechanical parts of adhesive processes, in general C09J 5/00)  [4]
 B29C 65/50
·  ·  using adhesive tape  [4]
 B29C 65/52
·  ·  Applying the adhesive  [4]
 B29C 65/56
·  using mechanical means  [4]
 B29C 65/70
·  by moulding (using a particular moulding technique, see the relevant place for that technique)  [4]
 B29C 65/72
·  by combined operations, e.g. welding and stitching  [4]
 B29C 65/74
·  by welding and severing  [4]
 B29C 65/78
·  Means for handling the parts to be joined, e.g. for making containers or hollow articles  [4]
P:190 B29C 67/00
Shaping techniques not covered by groups B29C 39/00-B29C 65/00, B29C 70/00 or B29C 73/00  [4,6]
 B29C 67/02
·  Moulding by agglomerating  [4]
 B29C 67/08
·  Screen moulding, e.g. forcing the moulding material through a perforated screen on to a moulding surface  [4]
 B29C 67/20
·  for porous or cellular articles, e.g. of foam plastics, coarse-pored  [4]
 B29C 67/24
·  characterised by the choice of material  [4]
P:20 B29C 69/00
Combinations of shaping techniques not provided for in a single one of main groups B29C 39/00-B29C 67/00, e.g. associations of moulding and joining techniques; Apparatus therefor  [4]
 B29C 69/02
·  of moulding techniques only  [4]
P:180 B29C 70/00
Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts (chemical aspects C08, e.g. C08J 5/00)  [6]
 B29C 70/00

Note(s)

In this group, the following terms or expressions are used with the meanings indicated:  [6]

  • "reinforcement" means a structure in the form of fibres, wires, rods, bars, sections, plates or blocks, which improves the strength of an article;  [6]
  • "filler" means a relatively inert substance in the form of particles, powder, beads, flakes or spheres, which improves the physical properties or increases the bulk or weight of an article;  [6]
  • "preformed part" means a part made of any material, being completely shaped to have a determined form and which is not used as a reinforcement, e.g. wires or nets forced only into the surface of an article;  [6]
  • "insert" means a preformed part incorporated in an article during moulding.  [6]

 B29C 70/04
·  comprising reinforcements only, e.g. self-reinforcing plastics  [6]
 B29C 70/06
·  ·  Fibrous reinforcements only  [6]
 B29C 70/08
·  ·  ·  comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, with or without non-reinforced layers  [6]
 B29C 70/10
·  ·  ·  characterised by the structure of fibrous reinforcements  [6]
P:10 B29C 71/00
After-treatment of articles without altering their shape; Apparatus therefor (B29C 44/34, B29C 73/00 take precedence; surface shaping B29C 59/00; chemical aspects C08J 7/00)  [4,5,6]
 B29C 71/02
·  Thermal after-treatment  [4]
P:0 B29C 73/00
Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass B29D (retreading tyres B29D 30/52; devices for covering leaks in pipes or hoses F16L 55/16)  [5]