POLYSACCHARIDES; DERIVATIVES THEREOF (polysaccharides containing less than six saccharide radicals attached to each other by glycosidic linkages C07H; fermentation or enzyme-using processes C12P19/00; sugar industry C13; production of cellulose D21)

Introduced: September 1968

Description

C08B encompasses polysaccharides and their chemical derivatives, including natural polymers such as cellulose, starch, gums, and glycans, as well as modified forms obtained through chemical treatment, cross-linking, or substitution. This subclass covers both the isolation and purification of polysaccharides from natural sources and their synthetic preparation, chemical working-up, and formulation into composition-based products. Typical applications include food additives, thickening agents, biodegradable polymers, pharmaceutical excipients, and industrial binders. Adjacent classes cover other macromolecular compounds (C08C-C08L) and specific processing aspects covered under C08H and related subdivisions.

Title

Titles differ between systems:

IPC: POLYSACCHARIDES; DERIVATIVES THEREOF

CPC: POLYSACCHARIDES; DERIVATIVES THEREOF (polysaccharides containing less than six saccharide radicals attached to each other by glycosidic linkages C07H; fermentation or enzyme-using processes C12P19/00; sugar industry C13; production of cellulose D21)

Full Title

Full titles differ between systems:

IPC:

POLYSACCHARIDES; DERIVATIVES THEREOF

CPC:

POLYSACCHARIDES; DERIVATIVES THEREOF (polysaccharides containing less than six saccharide radicals attached to each other by glycosidic linkages C07H; fermentation or enzyme-using processes C12P19/00; sugar industry C13; production of cellulose D21)

IPC and CPC are identically structured here. All 15 subcodes exist in both systems.

5 shared codes have differing titles between IPC and CPC.

Child Classifications

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C08B 1/00 Preparatory treatment of cellulose for making derivatives thereof +2 CPC IPC+CPC Available in IPC and CPC
C08B 11/00 Preparation of cellulose ethers IPC+CPC Available in IPC and CPC
C08B 13/00 Preparation of cellulose ether-esters IPC+CPC Available in IPC and CPC
C08B 15/00 Preparation of other cellulose derivatives or modified cellulose +1 CPC IPC+CPC Available in IPC and CPC
C08B 16/00 Regeneration of cellulose since 1974 IPC+CPC Available in IPC and CPC
C08B 17/00 Apparatus for esterification or etherification of cellulose IPC+CPC Available in IPC and CPC
C08B 3/00 Preparation of cellulose esters of organic acids IPC+CPC Available in IPC and CPC
C08B 30/00 Preparation of starch, degraded or non-chemically modified starch, amylose, or amylopectin since 1985 IPC+CPC Available in IPC and CPC
C08B 31/00 Preparation of derivatives of starch (derivatives of amylose C08B33/00; derivatives of amylopectin C08B35/00) since 1974 +1 CPC IPC+CPC Available in IPC and CPC
C08B 33/00 Preparation of derivatives of amylose since 1974 IPC+CPC Available in IPC and CPC
C08B 35/00 Preparation of derivatives of amylopectin since 1974 IPC+CPC Available in IPC and CPC
C08B 37/00 Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof (cellulose D21; ) since 1974 +3 CPC −6 IPC IPC+CPC Available in IPC and CPC
C08B 5/00 Preparation of cellulose esters of inorganic acids IPC+CPC Available in IPC and CPC
C08B 7/00 Preparation of cellulose esters of both organic and inorganic acids IPC+CPC Available in IPC and CPC
C08B 9/00 Cellulose xanthate; Viscose IPC+CPC Available in IPC and CPC