IPC 7 English version
  B32 - B32B 17/12  
B32B01800-B32B03500
 

SECTION B – PERFORMING OPERATIONS; TRANSPORTING


B 32LAYERED PRODUCTS


B 32 BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM


18/

00Layered products essentially comprising ceramics, e.g. refractory products  [4]


19/

00Layered products essentially comprising natural mineral fibres or particles, e.g. asbestos, mica

19/

02.bonded with or embedded in a plastic substance

19/

04.next to another layer of a specific substance

19/

06.next to a fibrous or filamentary layer

19/

08.comprising asbestos


21/

00Layered products essentially comprising wood, e.g. wood board, veneer, wood particle board

21/

02.in the form of fibres, chips, or particles

21/

04.comprising wood as the main or only constituent of a layer, next to another layer of a specific substance

21/

06..of paper or cardboard

21/

08..of synthetic resin; of fibre-reinforced resin

21/

10.Next to a fibrous or filamentary layer

21/

12.next to a particulate layer

21/

13.all layers being exclusively wood  [3]

21/

14.comprising wood board or veneer


23/

00Layered products essentially comprising cellulosic plastic substances

23/

02.in the form of fibres or filaments

23/

04.comprising such substance as the main or only constituent of a layer, next to another layer of a specific substance

23/

06..of paper or cardboard

23/

08..of synthetic resin

23/

10.next to a fibrous or filamentary layer

23/

12.next to a particulate layer

23/

14.characterised by containing special compounding ingredients

23/

16..Modifying agents

23/

18..Fillers

23/

20.comprising esters

23/

22.comprising ethers


25/

00Layered products essentially comprising natural or synthetic rubber

25/

02.with fibres or particles embedded in it or bonded with it

25/

04.comprising rubber as the main or only constituent of a layer, next to another layer of a specific substance

25/

06..of paper or cardboard

25/

08..of synthetic resin

25/

10.next to a fibrous or filamentary layer

25/

12.comprising natural rubber

25/

14.comprising copolymers in which synthetic rubber constituents predominate

25/

16.comprising polydienes or poly-halodienes

25/

18.comprising butyl or halobutyl rubber

25/

20.comprising silicone rubber


27/

00Layered products essentially comprising synthetic resin

27/

02.in the form of fibres or filaments

27/

04.as impregnant, bonding, or embedding substance

27/

06.as the main or only constituent of a layer next to another layer of a specific substance

27/

08..of synthetic resin of a different kind

27/

10..of paper or cardboard

27/

12.next to a fibrous or filamentary layer

27/

14.next to a particulate layer

27/

16.specially treated, e.g. irradiated

27/

18.characterised by the use of special additives

27/

20..using fillers, pigments, thixotroping agents

27/

22..using plasticisers

27/

24..using solvents or swelling agents

27/

26..using curing agents

27/

28.comprising copolymers of synthetic resins not wholly covered by any one of the following subgroups

27/

30.comprising vinyl resin; comprising acrylic resin

27/

32.comprising polyolefins

27/

34.comprising polyamides

27/

36.comprising polyesters

27/

38.comprising epoxy resin

27/

40.comprising polyurethanes

27/

42.comprising melamine, urea, phenol, or similar aldehyde condensation resins


29/

00Layered products essentially comprising paper or cardboard

29/

02.next to a fibrous or filamentary layer

29/

04.next to a particulate layer

29/

06.specially treated, e.g. surfaced, parchmentised

29/

08.Corrugated paper, corrugated cardboard  [3]


31/

00Making layered products (making non-planar products B32B 1/00; making layered products comprising either a layer of plastics or a layer of substances in a plastic state B29; making products characterised by particular features of structure or of composition, see the relevant groups for such products) [4]

Note

 Layered products are also classified in this group if not characterised by their structure or composition.

31/

02.involving assembly of a non-flat intermediate product, e.g. forming a tube and then flattening it

31/

04.characterised by assembling pre-formed layers

31/

06..accompanied by formation of a layer between them

31/

08..involving the assembly of two or more webs of indefinite length

31/

10..involving the assembly of a web or webs together with a succession of separate panels or pieces of material

31/

12..combined with coating or other treatment of a layer before or during assembly

31/

14.characterised by treatment of assembled layers

31/

16..mechanically

31/

18...by cutting or otherwise severing

31/

20...by pressing, with or without heat

31/

22...by surface treatment

31/

24..non-mechanically

31/

26...by heat (B32B 31/20 takes precedence)

31/

28...by radiation other than infra-red

31/

30.characterised by layered material being formed by means of extruding apparatus


33/

00Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings (surface unevennesses or non-uniformities B32B 3/00); Layered products designed for particular purposes not covered by another single class


35/

00Operations or devices concerned specially with layered products and not otherwise provided for, e.g. for repairing

  B32 - B32B 17/12