Cleaning and liquid contact with solids – Processes – Longitudinally traveling work of bar – strip – strand – sheet...
Reexamination Certificate
2002-02-19
2004-08-24
El-Arini, Zeinab (Department: 1746)
Cleaning and liquid contact with solids
Processes
Longitudinally traveling work of bar, strip, strand, sheet...
C134S026000, C134S028000, C134S032000, C134S018000
Reexamination Certificate
active
06780254
ABSTRACT:
This invention relates to a process and an installation for lubricating and for cleaning and/or disinfecting filling lines for containers for holding beverages or foods, the cleaning and/or disinfection cycle taking place during the actual filling and conveying of the particular containers. Accordingly, production no longer has to be interrupted after just a few hours for the purpose of cleaning and/or disinfecting the filling line. The invention may be used in particular for automatic chain and belt lubricating systems of the type used in the packaging of foods, preferably beverages, in glass and plastic bottles, cans, glasses, casks, kegs, paper and paperboard containers and the like.
In bottle cellars and cask cellars of beverage factories and in the packaging of foods, conveyor belts or other conveyor installations lubricated with suitable water-based lubricant preparations via automatic belt lubrication systems are normally used for transporting the corresponding containers.
At present, conveyor lubricants based on fatty amines are mainly used for this purpose. Thus, DE-A-36 31 953 describes a process for lubricating chain-type bottle conveyors in bottling factories, more particularly in breweries, which is characterized in that the chain-type bottle conveyors are lubricated with conveyor lubricants based on neutralized primary fatty amines which preferably contain 12 to 18 carbon atoms and which have an unsaturated component of more than 10%.
EP-A-0 372 628 discloses fatty amine derivatives corresponding to the following formulae:
in which
R
1
is a saturated or unsaturated, branched or linear alkyl group containing 8 to 22 carbon atoms,
R
2
is hydrogen, an alkyl or hydroxyalkyl group containing 1 to 4 carbon atoms or —A—NH
2
,
A is a linear or branched alkylene group containing 1 to 8 carbon atoms and
A
1
is a linear or branched alkylene group containing 2 to 4 carbon atoms, as lubricants.
In addition, lubricants based on N-alkylated fatty amine derivatives which contain at least one secondary and/or tertiary amine are known from DE-A-39 05 548.
DE-A-42 06 506 relates to lubricants based on amphoteric compounds, primary, secondary and/or tertiary amines and/or salts of such amines corresponding to general formulae (I), (IIa), (IIb), (IIIa), (IIIb), (IIIc), (IVa) and (IVb):
in which
R is a saturated or mono- or polyunsaturated, linear or branched alkyl group containing 6 to 22 carbon atoms which may optionally be substituted by —OH, —NH
2
, —NH—, —CO—, —(CH
2
CH
2
O)
l
— or —(CH
2
CH
2
CH
2
O)
l
—,
R
1
is hydrogen, an alkyl group containing 1 to 4 carbon atoms, a hydroxyalkyl group containing 1 to 4 carbon atoms or a group —R
3
COOM,
R
2
is hydrogen, an alkyl group containing 1 to 4 carbon atoms or a hydroxyalkyl group containing 1 to 4 carbon atoms, but only where M represents a negative charge,
R
3
is a saturated or mono- or polyunsaturated, linear or branched alkyl group containing 1 to 12 carbon atoms which may optionally be substituted by —OH, —NH
2
, —NH—, —CO—, —(CH
2
CH
2
O)
l
— or —(CH
2
CH
2
CH
2
O)
l
—,
R
4
is a substituted or unsubstituted, linear or branched, saturated or mono- or polyunsaturated alkyl group containing 6 to 22 carbon atoms which may contain at least one amine, imine, hydroxy, halogen and/or carboxy group as substituent, a substituted or unsubstituted phenyl group which may contain at least one amine, imine, hydroxy, halogen, carboxy and/or a linear or branched, saturated or mono- or polyunsaturated alkyl group containing 6 to 22 carbon atoms as substituent,
R
5
is hydrogen or—independently of R
4
—has the same meaning as R
4
,
X
−
is an anion from the group consisting of amidosulfonate, nitrate, halide, sulfate, hydrogen carbonate, carbonate, phosphate or R
6
—COO
−
where
R
6
is hydrogen, a substituted or unsubstituted, linear or branched alkyl group containing 1 to 20 carbon atoms or alkenyl group containing 2 to 20 carbon atoms, which may contain at least one hydroxy, amine or imine group as substituent, or a substituted or unsubstituted phenyl group which may contain an alkyl group with 1 to 20 carbon atoms as substituent, and
R
7
and R
8
independently of one another represent a substituted or unsubstituted, linear or branched alkyl group containing 1 to 20 carbon atoms or alkenyl group containing 2 to 20 carbon atoms which may contain at least one hydroxy, amine or imine group as substituent, or a substituted or unsubstituted phenyl group which may contain an alkyl group with 1 to 20 carbon atoms as substituent,
M is hydrogen, alkali metal, ammonium, an alkyl group containing 1 to 4 carbon atoms, a benzyl group or a negative charge,
n is an integer of 1 to 12,
m is an integer of 0 to 5 and
l is a number of 0 to 5,
containing alkyl dimethylamine oxides and/or alkyl oligoglycosides as nonionic surfactants.
EP-B-629 234 discloses a lubricant combination consisting of
a) one or more compounds corresponding to the following formula:
in which
R
1
is a saturated or mono- or polyunsaturated, linear or branched alkyl group containing 6 to 22 carbon atoms which may optionally be substituted by —OH, —NH
2
—, —NH—, —CO—, halogen or a carboxyl group,
R
2
is a carboxyl group containing 2 to 7 carbon atoms,
M is hydrogen, alkali metal, ammonium, an alkyl group containing 1 to 4 carbon atoms or a benzyl group and n is an integer of 1 to 6,
b) at least one organic carboxylic acid selected from monobasic or polybasic, saturated or mono- or polyunsaturated carboxylic acids containing 2 to 22 carbon atoms,
c) optionally water and additives and/or auxiliaries.
WO 94/03562 describes a lubricant concentrate based on fatty amines and optionally typical diluents or auxiliaries and additives, characterized in that it contains at least one polyamine derivative of a fatty amine and/or a salt of such an amine, the percentage content of the polyamine derivatives of fatty amines in the formulation as a whole being from 1 to 100% by weight.
In one preferred embodiment of WO 94/03562, this lubricant concentrate contains at least one polyamine derivative of a fatty amine corresponding to the following general formula:
R—A—(CH
2
)
k
—NH—[(CH
2
)
l
—NH]
y
—(CH
2
)
m
—NH
2
·(H
+
X
−
)
n
in which
R is a substituted or unsubstituted, linear or branched, saturated or mono- or polyunsaturated alkyl group containing 6 to 22 carbon atoms, the substituents being selected from amino, imino, hydroxy, halogen and carboxy, or a substituted or unsubstituted phenyl group, the substituents being selected from amino, imino, hydroxy, halogen, carboxy and a linear or branched, saturated or mono- or polyun- saturated alkyl group containing 6 to 22 carbon atoms,
A represents either —NH— or —O—,
X
−
is an anion of an inorganic or organic acid,
k, l and m independently of one another are integers of 1 to 6,
y is 0, 1, 2 or 3 where A=—NH— or 1, 2, 3 or 4 where A=—O— and
n is an integer of 0 to 6.
DE-C-42 44 536 relates to a water-based lubricant for bottle conveyor belts containing at least one alkyldiamine corresponding to the general formula H
2n+1
C
n
—NH—(CH
2
)
x
—NHR, where n is a number of 8 to 20 and x is a number of 1 to 5 and R is a hydrogen atom or an alkyl group containing 1 to 20 carbon atoms, the salt of the alkyldiamine and an organic acid and optionally an organic acid and at least one ether carboxylic acid corresponding to the following general formula:
H
2n+1
C
n
(O—C
2
H
5
)
x
—O—(CH
2
)
y
—COOH,
where n is a number of 10 to 20, x is a number of 1 to 20 and y is a number of 0 to 5.
DE-A-36 31 953 describes a process for lubricating chain-form bottle conveyor belts in bottling factories and for cleaning the belts with a liquid cleaning preparation, the chain-form bottle conveyor belts being lubricated with conveyor lubricants based on neutralized primary fatty amines and cleaned with cationic cleaning preparations or organic acids. Accordingly, the document in question describes a process which uses a combination of a conveyor lubricant and an adapted cleaning preparation. However, this means that
Kluschanzoff Harald
Schmitz Karl-Heinz
Wershofen Thomas
Ecolab GmbH & Co. OHG
El-Arini Zeinab
Merchant & Gould P.C.
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