Stabilizing agent
AssigneeDegussa AG
InventorsUdo Jegelka, Jochen Kirchhoff, Thomas Hjertberg, Bill Gustafsson, Johan Linner, Annika Smedberg
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Abstract
The present invention relates to a stabilizing agent for polymers or copolymers which is a copolymer of ethylene or propylene (A) and a vinyl compound (B) having the formula: 1 wherein X is O, NH or NR5; R1, R2 and R3 are each independently H, C1-C8 alkyl, C1-C8 substituted aryl; R4 is H, C1-C8 alkyl, C6-C12 cycloalkyl, C1-C10 acyl, C1-C10 acyloxy or C1-C8 alkyl ether; R5 is C1-C8 alkyl and wherein the copolymer has at least 1 mol % (B) and has an MFR2 of 1-1000 g/10 min.
Claims8
A stabilizing agent for polymers, characterised in that it comprises a copolymer of ethylene or propylene (A) and a vinyl compound (B) with the formula (I)
- 4
- wherein X═O, NH or NR5;
- R1, R2 and R3 independently each ═H, C1-C8 alkyl, C1-C8-alkenyl or C1-C8 substituted aryl;
- R4═H, C1-C8 alkyl, C6-C12 cycloalkyl, C1-C10 acyl, C1-C10 acyloxy or C1-C8 alkyl ether;
- R5═C1-C8 alkyl;
- the copolymer contains at least 1 mol % of (B);
- and the copolymer has an MFR2 of 1-1000 g/10 min.
Dependencies are inferred from the claim text.