IPC 7 English version
B29-B29B01702

SECTION B – PERFORMING OPERATIONS; TRANSPORTING


B 29WORKING 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 5/02; 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-māche D21J)


B 29 BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS  [4]


Note

 In this subclass, it is desirable to add the indexing codes of subclass B29K. The indexing codes should be unlinked.  [4]


Subclass Index

PRETREATMENT 

Mixing; kneading 

B29B 7/00 

Conditioning 

B29B 13/00 

Other pretreatment 

B29B 15/00 

MAKING GRANULES OR PREFORMS 

B29B 9/00, B29B 11/00 

RECOVERY OF PLASTICS 

B29B 17/00 


7/

00Mixing; Kneading (in general B01F; combined with calendering B29C 43/24, with injection B29C 45/46, with extrusion B29C 47/36) [4]

7/

02.non-continuous, with mechanical mixing or kneading devices, i.e. batch type  [4]

7/

04..with non-movable mixing or kneading devices  [4]

7/

06..with movable mixing or kneading devices  [4]

7/

08...shaking, oscillating or vibrating  [4]

7/

10...rotary  [4]

7/

12....with single shaft  [4]

7/

14.....with screw or helix  [4]

7/

16.....with paddles or arms  [4]

7/

18....with more than one shaft  [4]

7/

20.....with intermeshing devices, e.g. screws  [4]

7/

22..Component parts, details or accessories; Auxiliary operations  [4]

7/

24...for feeding  [4]

7/

26...for discharging, e.g. doors  [4]

7/

28...for measuring, controlling or regulating, e.g. viscosity control  [4]

7/

30.continuous, with mechanical mixing or kneading devices  [4]

7/

32..with non-movable mixing or kneading devices  [4]

7/

34..with movable mixing or kneading devices  [4]

7/

36...shaking, oscillating or vibrating  [4]

7/

38...rotary (B29B 7/52 takes precedence)  [4]

7/

40....with single shaft  [4]

7/

42.....with screw or helix  [4]

7/

44.....with paddles or arms  [4]

7/

46....with more than one shaft  [4]

7/

48.....with intermeshing devices, e.g. screws  [4]

7/

50....with rotary casing  [4]

7/

52...with rollers or the like, e.g. calenders  [4]

7/

54....with a single roller co-operating with a stationary member  [4]

7/

56....with co-operating rollers  [4]

7/

58..Component parts, details or accessories; Auxiliary operations  [4]

7/

60...for feeding, e.g. end guides for the incoming material  [4]

7/

62...Rollers, e.g. with grooves  [4]

7/

64...Stripping the material from the rollers  [4]

7/

66...Recycling the material  [4]

7/

68...Positioning of rollers  [4]

7/

70...Conditioning of rollers, e.g. cleaning  [4]

7/

72...Measuring, controlling or regulating  [4]

7/

74.using other mixers or combinations of dissimilar mixers  [4]

7/

76..with stream impingement mixing head  [4]

7/

78..by gravity, e.g. falling particle mixers  [4]

7/

80.Component parts, details or accessories; Auxiliary operations (B29B 7/22, B29B 7/58 take precedence)  [4]

7/

82..Heating or cooling  [4]

7/

84..Venting or degassing  [4]

7/

86..for working at sub- or superatmospheric pressure  [4]

7/

88..Adding charges  [4]

7/

90...Fillers or reinforcements  [4]

7/

92....Wood chips or wood fibres  [4]

7/

94...Liquid charges  [4]


9/

00Making granules (in general B01J; chemical aspects C08J 3/12) [4]

9/

02.by dividing preformed material  [4]

9/

04..in the form of plates or sheets  [4]

9/

06..in the form of filamentary material, e.g. combined with extrusion  [4]

9/

08.by agglomerating smaller particles  [4]

9/

10.by moulding the material, i.e. treating it in the molten state  [4]

9/

12.characterised by structure or composition  [4]

9/

14..fibre-reinforced  [4]

9/

16.Auxiliary treatment of granules  [4]


11/

00Making preforms (B29C 61/06 takes precedence) [4]

11/

02.by dividing preformed material, e.g. sheets, rods  [4]

11/

04.by assembling preformed material  [4]

11/

06.by moulding the material  [4]

11/

08..Injection moulding  [4]

11/

10..Extrusion moulding  [4]

11/

12..Compression moulding  [4]

11/

14.characterised by structure or composition  [4]

11/

16..comprising fillers or reinforcements  [4]


13/

00Conditioning or physical treatment of the material to be shaped (chemical aspects C08J 3/00) [4]

13/

02.by heating (B29B 13/06, B29B 13/08 take precedence)  [4]

13/

04.by cooling  [4]

13/

06.by drying (B29B 13/08 takes precedence)  [4]

13/

08.by using wave energy or particle radiation  [4]

13/

10.by grinding, e.g. by triturating; by sieving; by filtering  [4]


15/

00Pretreatment of the material to be shaped, not covered by groups B29B 7/00 to B29B 13/00  [4]

15/

02.of crude rubber, gutta-percha, or similar substances (tapping latex A01G; chemical aspects C08C)  [4]

15/

04..Coagulating devices  [4]

15/

06..Washing devices  [4]

15/

08.of reinforcements or fillers (chemical aspects C08J, C08K)  [4]

15/

10..Coating or impregnating (applying liquids in general B05)  [4]

15/

12...of reinforcements of indefinite length  [4]

15/

14....of filaments or wires  [4]


17/

00Recovery of plastics or other constituents of waste material containing plastics (chemical recovery C08J 11/00) [4]

17/

02.Separating plastics from other materials  [4]