C
SECTION C — CHEMISTRY AND METALLURGY
  
CHEMISTRY
 C08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON (production of artificial threads, fibres, bristles or ribbons D01)
 C08C
TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
 C08C

Note(s)

This sub-class includes:

  1. processes directed to natural rubber or to conjugated diene rubbers (synthesis thereof C08F);
  2. processes directed to rubbers in general (to a specific rubber, other than provided for by (a) above, C08F-C08H). [2]

 C08C 1/00 - 
C08C 19/00
Preparation
 C08C 1/00
Treatment of rubber latex
 C08C 1/02
·  Chemical or physical treatment of rubber latex before or during concentration
 C08C 1/04
·  ·  Purifying; Deproteinising
 C08C 1/06
·  ·  Preservation of rubber latex (preserving ingredients C08K)
 C08C 1/065
·  ·  Increasing the size of dispersed rubber particles  [2]
 C08C 1/07
·  ·  ·  characterised by the agglomerating agents used  [2]
 C08C 1/075
·  ·  Concentrating  [2]
 C08C 1/08
·  ·  ·  with the aid of creaming agents
 C08C 1/10
·  ·  ·  by centrifugation
 C08C 1/12
·  ·  ·  by evaporation
 C08C 1/14
·  Coagulation
 C08C 1/15
·  ·  characterised by the coagulants used  [2]
 C08C 1/16
·  ·  in floc form
 C08C 1/18
( transferred to C08J )
 C08C 2/00
Treatment of rubber solutions  [2]
 C08C 2/02
·  Purification  [2]
 C08C 2/04
·  ·  Removal of catalyst residues  [2]
 C08C 2/06
·  Winning of rubber from solutions  [2]
 C08C 3/00
Treatment of coagulated rubber
 C08C 3/02
·  Purification  [2]
 C08C 4/00
Treatment of rubber before vulcanisation, not provided for in groups C08C 1/00-C08C 3/02  [2]
 C08C 5/00
( transferred to C08C 19/00 )
 C08C 7/00 - 
C08C 9/00
( transferred to C08L )
 C08C 11/00 - 
C08C 15/00
( transferred to C08K, C08L )
 C08C 17/00
( transferred to C08J )
 C08C 19/00
Chemical modification of rubber (crosslinking agents, other than provided for by group C08C 19/30, C08K)  [2]
 C08C 19/00

Note(s)

In the absence of an indication to the contrary, a process is classified in the last appropriate place. [2]

 C08C 19/02
·  Hydrogenation  [2]
 C08C 19/04
·  Oxidation  [2]
 C08C 19/06
·  ·  Epoxidation  [2]
 C08C 19/08
·  Depolymerisation  [2]
 C08C 19/10
·  Isomerisation; Cyclisation  [2]
 C08C 19/12
·  Incorporating halogen atoms into the molecule  [2]
 C08C 19/14
·  ·  by reaction with halogens  [2]
 C08C 19/16
·  ·  by reaction with hydrogen halides  [2]
 C08C 19/18
·  ·  by reaction with hydrocarbons substituted by halogen  [2]
 C08C 19/20
·  Incorporating sulphur atoms into the molecule  [2]
 C08C 19/22
·  Incorporating nitrogen atoms into the molecule  [2]
 C08C 19/24
·  Incorporating phosphorus atoms into the molecule  [2]
 C08C 19/26
·  Incorporating metal atoms into the molecule  [2]
 C08C 19/28
·  Reaction with compounds containing carbon-to-carbon unsaturated bonds (graft polymers C08F)  [2]
 C08C 19/30
·  Addition of a reagent which reacts with a hetero atom or a group containing hetero atoms of the macromolecule  [2]
 C08C 19/32
·  ·  reacting with halogens or halogen-containing groups  [2]
 C08C 19/34
·  ·  reacting with oxygen or oxygen-containing groups  [2]
 C08C 19/36
·  ·  ·  with carboxy radicals  [2]
 C08C 19/38
·  ·  ·  with hydroxy radicals  [2]
 C08C 19/40
·  ·  ·  with epoxy radicals  [2]
 C08C 19/42
·  ·  reacting with metals or metal-containing groups  [2]
 C08C 19/44
·  ·  ·  of polymers containing metal atoms exclusively at one or both ends of the skeleton  [2]