Use of sterically hindered amines or stabilised ethylene polymers in the production of plastic bodies for storage and transport of vegetable oil esters

DETAILED DESCRIPTION We claim: 1.
A method for storing and transporting vegetable oil esters comprising partially or completely filling a plastic article and/or component comprising ethylene homo- and copolymers stabilized by sterically hindered amines or their N-hydroxy or N-oxyl derivatives with vegetable oil esters.
2.
The method as claimed in claim 1, wherein the ethylene homo- and copolymers are stabilized by sterically hindered amines or their N-hydroxy or N-oxyl derivatives, of the formula I ##STR6## where R.
sup.
1 and R.
sup.
2 are C.
sub.
1 -C.
sub.
4 -alkyl or phenyl or together with the carbon to which they are attached are a 5- or 6-membered saturated hydrocarbon ring, R.
sup.
3 is hydrogen, hydroxyl, amino or an m-valent, oxygen- or nitrogen-bonded organic radical or together with R.
sup.
4 is oxygen or a ring structure defined under R.
sup.
4, R.
sup.
4 is hydrogen or C.
sub.
1 -C.
sub.
12 -alkyl or together with R.
sup.
3 is oxygen or together with R.
sup.
3 and the carbon to which they are attached is a ring structure ##STR7## where m is 1 when R.
sup.
3 and R.
sup.
4 unite to form a ring structure, R.
sup.
5 is hydrogen, C.
sub.
1 -C.
sub.
12 -alkyl or --(CH.
sub.
2).
sub.
z --COOR.
sup.
6, R.
sup.
6 is identical or different C.
sub.
1 -C.
sub.
18 -alkyl, X is hydrogen, hydroxyl or oxygen, k is 0 or 1, z and p are from 1 to 12 and m is from 1 to 100.
3.
The method as claimed in claim 1, wherein the ethylene homo- and copolymers comprise sterically hindered amines or their N-hydroxy or N-oxyl derivatives in an amount of from 100 to 5000 ppm, based on the total mass of the polymers.
4.
The method as claimed in claim 1, wherein the ethylene homo- and copolymers have a density of from 0.
930 to 0.
970 g/cm.
sup.
3.
5.
The method as claimed in claim 1, wherein the ethylene polymer is HDPE.
6.
The method as claimed in claim 1, wherein the vegetable oil ester is rapeseed oil methyl ester.
7.
The method as claimed in claim 2, wherein the ethylene homo- and copolymers comprise sterically hindered amines or their N-hydroxy or N-oxyl derivatives in an amount of from 100 to 5000 ppm, based on the total mass of the polymers