Preparing or treating the raw materials individually or as batches

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Clay-wares > Preparing or treating the raw materials individually or as batches

CPC:

Clay-wares (monolithic refractories or refractory mortars C04B35/66; porous products C04B38/00) > Preparing or treating the raw materials individually or as batches

Of 5 combined children, 4 exist in both systems.

1 codes are CPC-only extensions.

2 shared codes have differing titles between IPC and CPC.

Child Classifications

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C04B 33/025 CPC only CPC only
C04B 33/04 Clay; Kaolin IPC+CPC Available in IPC and CPC
C04B 33/10 Eliminating iron or lime IPC+CPC Available in IPC and CPC
C04B 33/13 Compounding ingredients (C04B33/36, C04B35/71 take precedence ) since 1974 +3 CPC IPC+CPC Available in IPC and CPC
C04B 33/20 for dry-pressing (C04B33/13 takes precedence) IPC+CPC Available in IPC and CPC