After-treatment of sols (; preparation of hydroorganosols, organosols or dispersions in an organic medium from hydrosols C01B33/145)

Introduced: January 1980

Title

Titles differ between systems:

IPC: After-treatment of sols

CPC: After-treatment of sols (; preparation of hydroorganosols, organosols or dispersions in an organic medium from hydrosols C01B33/145)

Full Title

Full titles differ between systems:

IPC:

Silicon; Compounds thereof > Silicon oxides; Hydrates thereof > Silica; Hydrates thereof, e.g. lepidoic silicic acid > Colloidal silica, e.g. dispersions, gels, sols > After-treatment of sols

CPC:

Silicon; Compounds thereof ( C01B21/00, C01B23/00 take precedence; persilicates C01B15/14; carbides C01B32/956) > Silicon oxides; Hydrates thereof > Silica; Hydrates thereof, e.g. lepidoic silicic acid > Colloidal silica, e.g. dispersions, gels, sols > After-treatment of sols (; preparation of hydroorganosols, organosols or dispersions in an organic medium from hydrosols C01B33/145)

Of 4 combined children, 3 exist in both systems.

1 codes are CPC-only extensions.

1 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 1980.

Child Classifications

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C01B 33/1465 CPC only CPC only
C01B 33/148 Concentration; Drying; Dehydration; Stabilisation; Purification since 1980 +1 CPC IPC+CPC Available in IPC and CPC
C01B 33/149 Coating since 1980 IPC+CPC Available in IPC and CPC
C01B 33/151 by progressively adding a sol to a different sol, i.e. "build-up" of particles using a "heel" since 1980 IPC+CPC Available in IPC and CPC