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US 2026/0308352 A1Published application
Elastomer compositions comprising at least one sp2 hybridized carbon allotrope and a 2,5-disubstituted pyrrole derivative
AssigneePirelli Tyre S.p.A.
InventorsMaurizio Stefano GALIMBERTI, Vincenzina BARBERA, Fatima MARGANI, Luca GIANNINI
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Abstract
The present invention generally relates to elastomer compositions comprising at least one sp2 hybridized carbon allotrope and a 2,5-disubstituted pyrrole derivative, preferably provided as a pre-formed adduct, the process for their preparation and tyres comprising such elastomer compositions. The present invention further relates to adducts between said pyrrole derivatives and sp2 hybridized carbon allotropes as well as to the process for their preparation.
Claims29
An elastomer composition comprising:
- at least one sp2 hybridized carbon allotrope and
- a compound of formula (I)
- wherein X and Y are independently selected from the group consisting of:
- —NHR′ and OR″, and
- wherein R″ is selected from the group consisting of hydrogen, linear or branched C1-C10 alkyl, linear or branched C2-C10 alkenyl or alkynyl, aryl, linear or branched C1-C10 alkyl-aryl, linear or branched C2-C10 alkenyl-aryl, linear or branched C2-C10 alkynyl-aryl, and heteroaryl;
- and
- wherein R and R′ are independently selected from the group consisting of:
- hydrogen, linear or branched C1-C10 alkyl, linear or branched C2-C10 alkenyl or alkynyl, aryl, linear or branched C1-C10 alkyl-aryl, linear or branched C2-C10 alkenyl-aryl, linear or branched C2-C10 alkynyl-aryl, heteroaryl, and carboxyl;
- or R and/or R′ is
- wherein M, Q and J are independently selected in a group consisting of;
- amine, hydroxyl, hydrogen, linear or branched C1-C10 alkyl, and linear or branched C2-C10 alkenyl or alkynyl, or in a group consisting of:
- wherein R1-R15 are independently selected from the group consisting of:
- hydrogen, linear or branched C1-C10 alkyl, linear or branched C2-C10 alkenyl or alkynyl, aryl, linear or branched C1-C10 alkyl-aryl, linear or branched C2-C10 alkenyl-aryl, linear or branched C2-C10 alkynyl-aryl, heteroaryl, and carboxyl;
- and wherein R10-R12 can be —OCH2—CH3, or —OCH3;
- and wherein R14 can be —CH2—SH, or —CH2—CH2—S—CH3;
- and wherein T is —O— or —S—, and when T is —S— then p′ is an integer from 1 to 4, when T is —O— then p′ is an integer from 1 to 2;
- and
- wherein l′, p′, q′, r′ are independently integers from 0 to 12;
- or R and/or R′ is
- wherein R16 is selected from the group consisting of:
- hydrogen, alkyl, aryl, benzyl, amine, alkylamine, arylamine, benzylamine, and aminoaryl;
- and
- R17-R21 are independently selected from the group consisting of:
- hydrogen, linear or branched C1-C10 alkyl, linear or branched C2-C10 alkenyl or alkynyl, and 1-(4-aminocyclohexyl)methylene, and
- at least one elastomer.
22 more elements
An adduct between a sp2 hybridized carbon allotrope and a compound of formula (I)
- wherein X and Y are independently selected from the group consisting of:
- —NHR′ and OR″, and
- wherein R″ is selected from the group consisting of:
- hydrogen, linear or branched C1-C10 alkyl, linear or branched C2-C10 alkenyl or alkynyl, aryl, linear or branched C1-C10 alkyl-aryl, linear or branched C2-C10 alkenyl-aryl, linear or branched C2-C10 alkynyl-aryl, and heteroaryl;
- and
- wherein R and R′ are independently selected from the group consisting of:
- hydrogen, linear or branched C1-C10 alkyl, linear or branched C2-C10 alkenyl or alkynyl, aryl, linear or branched C1-C10 alkyl-aryl, linear or branched C2-C10 alkenyl-aryl, linear or branched C2-C10 alkynyl-aryl, heteroaryl, and carboxyl;
- or R and/or R′ is
- wherein M, Q and J are independently selected in a group consisting of:
- amine, hydroxyl, hydrogen, linear or branched C1-C10 alkyl, and linear or branched C2-C10 alkenyl or alkynyl, or in a group consisting of:
- wherein R1-R15 are independently selected from the group consisting of:
- hydrogen, linear or branched C1-C10 alkyl, linear or branched C2-C10 alkenyl or alkynyl, aryl, linear or branched C1-C10 alkyl-aryl, linear or branched C2-C10 alkenyl-aryl, linear or branched C2-C10 alkynyl-aryl, heteroaryl, and carboxyl;
- and wherein R10-R12 can be —OCH2—CH3, or —OCH3;
- and wherein R14 can be —CH2—SH, or —CH2—CH2—S—CH3;
- and wherein T is —O— or —S—, and when T is —S— then p′ is an integer from 1 to 4, when T is-O-then p′ is an integer from 1 to 2;
- and wherein l′, p′, q′, r′ are independently integers from 0 to 12;
- or R and/or R′ is
- wherein R16 is selected from the group consisting of:
- hydrogen, alkyl, aryl, benzyl, amine, alkylamine, arylamine, benzylamine, and aminoaryl;
- and
- R17-R21 are independently selected from the group consisting of:
- hydrogen, linear or branched C1-C10 alkyl, linear or branched C2-C10 alkenyl or alkynyl, and 1-(4-aminocyclohexyl)methylene.
19 more elements
Dependencies are inferred from the claim text.