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Indent Level
Color Curly Brackets (indicating CPC extensions to IPC) References Date Revised

CPC
COOPERATIVE PATENT CLASSIFICATION
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FATTY ACIDS FROM FATS, OILS OR WAXES; CANDLES; FATS, OILS OR FATTY ACIDS BY CHEMICAL MODIFICATION OF FATS, OILS, OR FATTY ACIDS OBTAINED THEREFROM
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Preparation of fatty acids from fats, fatty oils, or waxes; Refining the fatty acids (recovery of fatty acids from waste materials C11B 13/00)
.
{
Sources of fatty acids, e.g. natural glycerides, characterised by the nature, the quantities or the distribution of said acids
}
.
{
Splitting up mixtures of fatty acids into their constituents (processes intended for both fats and fatty acids C11B 7/00)
}
.
{
using organic solvents
}
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from fats or fatty oils
. .
{
by saponification and release of fatty acids
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. .
by hydrolysis
. . .
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using enzymes or microorganisms, living or dead
}
. . .
using solid catalysts
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Refining
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. .
by distillation
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. . .
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after or with the addition of chemicals
}
. . . .
{
inert gases or vapors
}
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Fats, oils, or fatty acids by chemical modification of fats, oils, or fatty acids obtained therefrom (sulfonated fats or oils C07C 309/62; factice C08H; drying oils C09F)
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{
by esterification of fatty acids with alcohols (C11C 3/02 takes precedence)
}
.
{
by oxidation
}
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by esterification of fatty acids with glycerol
C11C 3/025
. .
{
with a stoechiometric excess of glycerol
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by esterification of fats or fatty oils
. .
with glycerol
. .
with fatty acids
. .
Ester interchange
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C11C 3/12
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by hydrogenation
. .
{
using catalysts based principally on nickel or derivates
}
. .
{
using catalysts based principally on other metals or derivates
}
C11C 3/14
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by isomerisation
{
(isomerisation induced by hydrogeneration C11C 3/12)
}
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Candles
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Ingredients
}
C11C 5/004
. .
{
dyes, pigments; products giving a coloured flame
}
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{
wicks, related accessories
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{
Candles characterised by their form; Composite candles, e.g. candles containing zones of different composition, inclusions, or the like
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Apparatus for preparation thereof
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by compressing solid materials in a mould without heating
}
. .
{
by casting or melting in a mould
}
. .
{
by dipping a wick in a melt
}
. .
{
by a continuous process, e.g. by extrusion by conveying a melt together with the wick through a solidification zone
}
. .
{
by shaping a preform, e.g. forming the butts, trimming
}
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Last Modified: 10/10/2013