C08H DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS (polysaccharides C08B; natural rubber C08C; natural resins or their derivatives C09F; bituminous materials C10)
Introduced: September 1968
Description
C08H covers chemical modifications and derivatives of naturally occurring macromolecules, including cellulose, starch, proteins, and polysaccharides obtained from plant or animal sources. This classification encompasses chemical reactions such as esterification, etherification, crosslinking, and substitution applied to natural polymers to alter their properties. Typical applications include modified cellulose products (acetates, ethers), chemically treated starches for industrial use, and protein-based materials with enhanced functionality. Adjacent classes C08B (polysaccharides) and C08G (synthetic macromolecular compounds) are distinguished by focusing on naturally derived starting materials rather than fully synthetic polymers or unmodified natural substances.
Title
Titles differ between systems:
IPC: DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS
CPC: DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS (polysaccharides C08B; natural rubber C08C; natural resins or their derivatives C09F; bituminous materials C10)
Full Title
Full titles differ between systems:
DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS
DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS (polysaccharides C08B; natural rubber C08C; natural resins or their derivatives C09F; bituminous materials C10)
Additional Content IPC
Glossary
Factice Vulcanised oil, used as a substitute for rubber.
Limiting references
Food proteins e.g. Polysaccharides Natural rubber Graft polymers obtained by polymerising monomers on to polysaccharides, natural rubbers or derivatives thereof , Compositions of bituminous materials, e.g. asphalt, tar or pitch Natural resins or their derivatives Glue, gelatine Working up pitch, asphalt or bitumen
Of 6 combined children, 4 exist in both systems.
1 codes are CPC-only extensions, 1 exist only in IPC.
1 shared codes have differing titles between IPC and CPC.
Child Classifications
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- C08H 1/00 Macromolecular products derived from proteins (food proteins A23; glue, gelatine C09H) IPC+CPC Available in IPC and CPC
- C08H 7/00 Lignin; Modified lignin; High-molecular-weight products derived therefrom IPC only IPC only
- C08H 8/00 Macromolecular compounds derived from lignocellulosic materials since 2010 IPC+CPC Available in IPC and CPC
- C08H 99/00 Subject matter not provided for in other groups of this subclass since 2010 IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
Class C08,2013–2023, worldwide · Source: EPO PATSTAT
- LG CHEM KR 14,262
- DOW GLOBAL TECHNOLOGIES US 12,486
- BASF (BADISCHE ANILIN & SODA FABRIK) DE 9,858
- SINOPEC (CHINA PETROCHEMICAL CORPORATION) 7,877
- CHINESE ACADEMY OF SCIENCES 6,993
- FUJIFILM JP 5,049
- 3M INNOVATIVE PROPERTIES COMPANY (MINNESOTA MINING AND MANUFACTURING INNOVATIVE PROPERTIES COMPANY) US 4,923
- SHIN-ETSU CHEMICAL COMPANY JP 4,517
- BOREALIS AT 4,213
- ARKEMA FR 4,098
Top Applicants (CPC)
Class C08,2013–2023, worldwide · Source: EPO PATSTAT
- LG CHEM KR 15,432
- DOW GLOBAL TECHNOLOGIES US 14,214
- BASF (BADISCHE ANILIN & SODA FABRIK) DE 11,155
- 3M INNOVATIVE PROPERTIES COMPANY (MINNESOTA MINING AND MANUFACTURING INNOVATIVE PROPERTIES COMPANY) US 6,455
- FUJIFILM JP 6,178
- CHINESE ACADEMY OF SCIENCES 5,569
- SHIN-ETSU CHEMICAL COMPANY JP 5,506
- SINOPEC (CHINA PETROCHEMICAL CORPORATION) 5,443
- TORAY INDUSTRIES JP 4,635
- NITTO DENKO CORPORATION JP 4,620