Chemical treatment or coating of shaped articles made of macromolecular substances (coating with metallic material
C 23 C; electrolytic deposition of metals C 25) [2]
7
/
02
•
with solvents, e.g. swelling agents [2]
7
/
04
•
Coating [2]
7
/
06
•
•
with compositions not containing macromolecular substances [2]
7
/
12
•
Chemical modification [2]
7
/
14
•
•
with acids, their salts or anhydrides [2]
7
/
16
•
•
with polymerisable compounds [2]
7
/
18
•
•
•
using wave energy or particle radiation [2]
9
/
00
Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof (mechanical aspects of shaping of plastics or substances in a plastic state for the production of porous or cellular articles
B 29 C; foamed polymeric products of isocyanates or isothiocyanates characterised by the monomers or catalysts used C 08 G 18/00) [2]
9
/
02
•
using blowing gases generated by the reacting monomers or modifying agents during the preparation or modification of macromolecules [2]
9
/
04
•
using blowing gases generated by a previously added blowing agent [2]
9
/
06
•
•
by a chemical blowing agent [2]
9
/
08
•
•
•
developing carbon dioxide [2]
9
/
10
•
•
•
developing nitrogen [2]
9
/
12
•
•
by a physical blowing agent [2]
9
/
14
•
•
•
organic [2]
Note
In groups C 08 J 9/16 to C 08 J 9/232, the following term is used with the meaning indicated:
-
"expandable" includes also expanding, pre-expanded or expanded. [5]
9
/
16
•
Making expandable particles [2,5]
9
/
18
•
•
by impregnating polymer particles with the blowing agent [2]
9
/
20
•
•
by suspension polymerisation in the presence of the blowing agent [2]
9
/
22
•
After-treatment of expandable particles; Forming foamed products [2,5]
9
/
224
•
•
Surface treatment [5]
9
/
228
•
•
Forming foamed products [5]
9
/
232
•
•
•
by sintering expandable particles [5]
9
/
236
•
•
•
using binding agents [5]
9
/
24
•
by surface fusion and bonding of particles to form voids, e.g. sintering (of expandable particles C 08 J 9/232) [2,5]
9
/
26
•
by elimination of a solid phase from a macromolecular composition or article, e.g. leaching out [2]
9
/
28
•
by elimination of a liquid phase from a macromolecular composition or article, e.g. drying of coagulum [2]
9
/
30
•
by mixing gases into liquid compositions or plastisols, e.g. frothing with air [2]
9
/
32
•
from compositions containing micro-balloons, e.g. syntactic foams (making micro-balloons B 01 J 13/02) [2]
9
/
33
•
Agglomerating foam fragments, e.g. waste foam [5]
9
/
34
•
Chemical features in the manufacture of articles consisting of a foamed macromolecular core and a macromolecular surface layer having a higher density than the core [2]
9
/
35
•
Composite foams, i.e. continuous macromolecular foams containing discontinuous cellular particles or fragments [5]
Recovery or working-up of waste materials (mechanical treatments B 29; polymerisation processes involving purification or recycling of waste polymers or their depolymerisation products
C 08 B, C 08 C, C 08 F, C 08 G, C 08 H) [4]
11
/
02
•
of solvents, plasticisers or unreacted monomers [4]
11
/
04
•
of polymers [2]
11
/
06
•
•
without chemical reactions [4]
11
/
08
•
•
•
using selective solvents for polymer components (working-up tar by extraction with selective solvents C 10 C 1/18; working-up pitch, asphalt, bitumen by selective extraction
C 10 C 3/08) [4]
11
/
10
•
•
by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation (depolymerisation to the original monomer C 07) [4]
11
/
12
•
•
•
by dry-heat treatment only (destructive distillation of carbonaceous materials for production of gas, coke, tar or similar matters
C 10 B) [4]
11
/
14
•
•
•
by treatment with steam or water [4]
11
/
16
•
•
•
by treatment with inorganic material (C 08 J 11/14 takes precedence) [4]
11
/
18
•
•
•
by treatment with organic material [4]
11
/
20
•
•
•
•
by treatment with hydrocarbons or halogenated hydrocarbons [4]
11
/
22
•
•
•
•
by treatment with organic oxygen-containing compounds [4]
11
/
24
•
•
•
•
•
containing hydroxyl groups [4]
11
/
26
•
•
•
•
•
containing carboxylic acid groups, their anhydrides or esters [4]
11
/
28
•
•
•
•
by treatment with organic compounds containing nitrogen, sulfur or phosphorus [4]
