Functional ethylene and 1,3-diene copolymers
AssigneeCompagnie Generale Des Etablissements Michelin
InventorsEmma Moreso, Vincent Lafaquiere
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Abstract
A copolymer of ethylene and of a 1,3-diene of formula CH2═CR—CH═CH2, which copolymer bears a silanol or alkoxysilane function, the symbol R representing a hydrocarbon chain having from 3 to 20 carbon atoms, is provided. Such a copolymer improves the compromise between the content of ethylene in the polymer, its crystallinity and the stiffness of a rubber composition containing it.
Claims19
A copolymer of ethylene and of a 1,3-diene of formula (I), which copolymer bears a silanol or alkoxysilane function,
- CH2═CR—CH═CH2 (I)
- the symbol R representing a hydrocarbon chain having from 3 to 20 carbon atoms, which copolymer contains units of the 1,3-diene of 1,2 or 3,4 configuration, the group consisting of units of the 1,3-diene of 1,2 configuration and units of the 1,3-diene of 3,4 configuration representing more than 50 mol % of the units of the 1,3-diene.
A copolymer consisting of ethylene and of a 1,3-diene of formula (I), which copolymer bears a silanol or alkoxysilane function,
- CH2═CR—CH═CH2 (I)
- the symbol R representing a hydrocarbon chain having from 3 to 20 carbon atoms, and in which the copolymer is a statistical copolymer.
Dependencies are inferred from the claim text.