Modifiers for anionic polymerization
AssigneeBayer Aktiengesellschaft
InventorsMichael Grün, Thomas Knauf, Wilfried Braubach
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Abstract
The invention provides modifiers for the anionic polymerization of conjugated dienes or of conjugated dienes with vinylaromatic compounds, wherein the modifiers are specific aminoethers.
Claims4
Polymers comprising conjugated dienes or copolymers comprising conjugated dienes and vinylaromatic compounds, prepared by anionic polymerization using modifiers comprising aminoethers of the formula
- wherein
- R1 and R2 are identical or different and represent alkyl groups with 1 to 10 carbon atoms, cycloalkyl groups with 5 to 8 carbon atoms, aryl groups with 6 to 10 carbon atoms, and aralkyl groups with 7 to 15 carbon atoms,
- wherein
- X represents
- R3 and R4 are defined in the same way as R1 and R2 and p represents an integer from 1 to 6,
- m is an integer from 1 to 6 and
- n is an integer from 1 to 6.
Industrial-grade rubber articles comprising polymers comprising conjugated dienes or copolymers comprising conjugated dienes and vinylaromatic compounds, prepared by anionic polymerization using modifiers comprising aminoethers of the formula
- wherein
- R1 and R2 are identical or different and represent alkyl groups with 1 to 10 carbon atoms, cycloalkyl groups with 5 to 8 carbon atoms, aryl groups with 6 to 10 carbon atoms, and aralkyl groups with 7 to 15 carbon atoms,
- X represents
- wherein
- R3 and R4 are defined in the same way as R1 and R2 and p represents an integer from 1 to 6,
- m is an integer from 1 to 6 and
- n is an integer from 1 to 6.
A process for modifying plastics comprising the steps of mixing a plastic and a polymer comprising conjugated dienes or a copolymer comprising conjugated dienes and vinylaromatic compounds, prepared by anionic polymerization using modifiers comprising aminoethers of the formula
- wherein
- R1 and R2 are identical or different and represent alkyl groups with 1 to 10 carbon atoms, cycloalkyl groups with 5 to 8 carbon atoms, aryl groups with 6 to 10 carbon atoms, and aralkyl groups with 7 to 15 carbon atoms,
- X represents
- wherein
- R3 and R4 are defined in the same way as R1 and R2 and p represents an integer from 1 to 6,
- m is an integer from 1 to 6 and
- n is an integer from 1 to 6.
Dependencies are inferred from the claim text.