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IPC Subclass
C11C

FATTY ACIDS OBTAINED FROM FATS, OILS OR WAXES; CANDLES; FATS, OILS OR FATTY ACIDS OBTAINED BY CHEMICAL MODIFICATION OF FATS, OILS OR FATTY ACIDS

Introduced: September 1968

Classification Context

Section:
CHEMISTRY; METALLURGY
Class:
ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
Subclass:
FATTY ACIDS OBTAINED FROM FATS, OILS OR WAXES; CANDLES; FATS, OILS OR FATTY ACIDS OBTAINED BY CHEMICAL MODIFICATION OF FATS, OILS OR FATTY ACIDS

Description

C11C covers the extraction, isolation, and chemical transformation of fatty acids from natural sources (fats, oils, and waxes), as well as the manufacture of candles and chemically modified lipid products. This includes hydrogenation, oxidation, esterification, and other chemical processes that alter the properties of fatty substances for industrial or consumer applications. The classification encompasses both traditional candle production and modern derivatives used in pharmaceuticals, cosmetics, lubricants, and food additives, excluding crude oil refining and purely physical separation processes covered elsewhere in C11.

Additional Content

Glossary

Fat fats Solid triester of glycerol and (mostly) saturated fatty acids Fatty acid fatty acids Any of a class of aliphatic monocarboxylic acids that form part of a lipid molecule and can be derived from fat by hydrolysis; nearly all fatty acids are built around a series of carbon atoms linked together in a chain of 4 to 28 carbon Esterification A chemical reaction resulting in the formation of at least one ester product. Hydrogenation Chemical process that adds hydrogen atoms to an unsaturated fat or fatty acid Isomerisation Process by which one molecule is transformed into another molecule which has exactly the same atoms, but the atoms are rearranged e.g. A-B-C → B-A-C, usually requiring special conditions of temperature, pressure, or catalysts Lipid lipids Any of a group of organic compounds, including the fats, oils, waxes, sterols, and triglycerides, that are insoluble in water but soluble in nonpolar organic solvents, are oily to the touch, and together with carbohydrates and proteins constitute the principal structural material of living cells. Wax waxes Any of a group of substances composed of hydrocarbons, alcohols, fatty acids, and esters that are solid at ordinary temperatures. They are similar to fats, but are less greasy and more brittle.

Limiting references

Sulfonated fats or oils Epoxidised fats Natural vulcanised oils, e.g. factice Recovery of fatty acids from waste materials

Application references

Drying-oils; Methods of obtaining and chemically modifying

Related Keywords

preparation of FATScandlesREFINING of fats, fatty acids or waxesREFINING of oilsanimal or vegetable WAX(ES)

3 direct subcodes

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Top Applicants

Top 10 applicants by patent filingsfor class C11, 2013–2023, worldwide · Source: EPO PATSTAT

  1. P&G (PROCTER & GAMBLE COMPANY) US 5,930
  2. HENKEL DE 3,288
  3. BASF (BADISCHE ANILIN & SODA FABRIK) DE 2,162
  4. ECOLAB US 1,454
  5. UNILEVER NL 1,430
  6. NOVOZYMES DK 1,366
  7. UNILEVER IP HOLDINGS NL 1,227
  8. CONOPCO, INC., D/B/A UNILEVER US 1,022
  9. KAO CORPORATION 947
  10. KAO CORPORATION JP 853