Ethers

Introduced: July 1974

Full Title

Full titles differ between systems:

IPC:

Preparation of chemical derivatives of starch > Ethers

CPC:

Preparation of derivatives of starch (derivatives of amylose C08B33/00; derivatives of amylopectin C08B35/00) > Ethers

IPC and CPC are identically structured here. All 3 subcodes exist in both systems.

1 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 1974.

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C08B 31/10 Alkyl or cycloalkyl ethers since 1974 IPC+CPC Available in IPC and CPC
C08B 31/12 having alkyl or cycloalkyl radicals substituted by heteroatoms, since 1974 +1 CPC IPC+CPC Available in IPC and CPC
C08B 31/14 Aryl or aralkyl ethers since 1974 IPC+CPC Available in IPC and CPC