selected from titanium, zirconium, hafnium, vanadium, niobium, or tantalum [2]
4
/
78
•
•
•
•
selected from chromium, molybdenum, or tungsten [2]
4
/
80
•
•
•
selected from iron group metals or platinum group metals [2]
4
/
82
•
•
•
•
pi-Allyl complexes [2]
6
/
00
Post-polymerisation treatments (C 08 F 8/00 takes precedence; of conjugated diene rubbers C 08 C) [2]
6
/
02
•
Neutralisation of the polymerisation mass, e.g. killing the catalyst (short-stopping C 08 F 2/42) [2]
6
/
04
•
Fractionation [2]
6
/
06
•
Treatment of polymer solutions [2]
6
/
08
•
•
Removal of catalyst residues [2]
6
/
10
•
•
Removal of volatile materials, e.g. monomers, solvents [2]
6
/
12
•
•
Separation of polymers from solutions [2]
6
/
14
•
Treatment of polymer emulsions [2]
6
/
16
•
•
Purification [2]
6
/
18
•
•
Increasing the size of the dispersed particles [2]
6
/
20
•
•
Concentration [2]
6
/
22
•
•
Coagulation [2]
6
/
24
•
Treatment of polymer suspensions [2]
6
/
26
•
Treatment of polymers prepared in bulk [2]
6
/
28
•
•
Purification [2]
8
/
00
Chemical modification by after-treatment (graft polymers, block polymers, crosslinking with unsaturated monomers or with polymers C 08 F 251/00 to C 08 F 299/00; of conjugated diene rubbers
C 08 C; crosslinking in general C 08 J) [2]
Note
In this group, in the absence of an indication to the contrary, a process is classified in the last appropriate place. [2]
8
/
02
•
Alkylation [2]
8
/
04
•
Reduction, e.g. hydrogenation [2]
8
/
06
•
Oxidation [2]
8
/
08
•
Epoxidation [2]
8
/
10
•
Acylation [2]
8
/
12
•
Hydrolysis [2]
8
/
14
•
Esterification [2]
8
/
16
•
•
Lactonisation [2]
8
/
18
•
Introducing halogen atoms or halogen-containing groups [2]
8
/
20
•
•
Halogenation [2]
8
/
22
•
•
•
by reaction with free halogens [2]
8
/
24
•
•
Haloalkylation [2]
8
/
26
•
Removing halogen atoms or halogen-containing groups from the molecule [2]
8
/
28
•
Condensation with aldehydes or ketones [2]
8
/
30
•
Introducing nitrogen atoms or nitrogen-containing groups (polymeric products of isocyanates or thiocyanates C 08 G) [2]
8
/
32
•
•
by reaction with amines [2]
8
/
34
•
Introducing sulfur atoms or sulfur-containing groups [2]
8
/
36
•
•
Sulfonation; Sulfation [2]
8
/
38
•
•
Sulfohalogenation [2]
8
/
40
•
Introducing phosphorus atoms or phosphorus-containing groups [2]
8
/
42
•
Introducing metal atoms or metal-containing groups [2]
8
/
44
•
Preparation of metal salts or ammonium salts [2]
8
/
46
•
Reaction with unsaturated dicarboxylic acids or anhydrides thereof, e.g. maleinisation [2]
