Metal or metal-plated reinforcement with sulfur polybenzoxazine-coated surface
AssigneeCompagnie Generale Des Etablissements Michelin
InventorsMilan Fedurco, Marco Ribezzo
Life of this patent
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Abstract
A metallic or metallized reinforcer has at least a surface of which is at least partially metallic, the at least partially metallic surface being coated with a polybenzoxazine sulfide whose repeating units include at least one unit corresponding to formula (I) or (II): in which the two oxazine rings are connected together via a central aromatic group, the benzene ring of which bears one, two, three or four groups of formula —Sx—R in which “x” is an integer from 1 to 8 and R represents hydrogen or a hydrocarbon-based group including 1 to 10 carbon atoms and optionally a heteroatom chosen from O, S, N and P. Such a reinforcement can be used for the reinforcement of a rubber article, in particular a motor vehicle tire.
Claims18
A metallic or metallized reinforcer, at least a surface of which is at least partially metallic, the at least partially metallic surface being coated with a polybenzoxazine sulfide, repeating units of which include at least one unit corresponding to formula (I) or (II):
- in which the two oxazine rings are connected together via a central aromatic group, a is an integer from 1 to 4, x is an integer from 1 to 8, R represents hydrogen or a hydrocarbon-based group including 1 to 10 carbon atoms and optionally a heteroatom chosen from O, S, N and P, and *, which may be identical or different, represents any attachment to a carbon atom or to a heteroatom chosen from O, S, N and P.
A metallic or metallized reinforcer, at least a surface of which is at least partially metallic, the at least partially metallic surface being coated with a polybenzoxazine sulfide, the repeating units of which comprise at least one unit corresponding to formulae (I-a-1), (I-b-1), (II-a-1) or (II-b-1):
- wherein *, which may be identical or different, represents any attachment to a carbon atom or to a heteroatom chosen from O, S, N and P.
A metallic or metallized reinforcer, at least a surface of which is at least partially metallic, the at least partially metallic surface being coated with a polybenzoxazine sulfide, the repeating units of which correspond to at least one of the formulae (I-1) or (II-1) below:
- in which:
- X1 and X2, which may be identical or different, represent O or S;
- Ar1 and Ar2, which may be identical or different, represent an aromatic group;
- Z represents O or (S)n, representing an integer greater than or equal to 1;
- a is an integer from 1 to 4;
- x is an integer from 1 to 8;
- R represents hydrogen or a hydrocarbon-based group including 1 to 10 carbon atoms and optionally a heteroatom chosen from O, S, N and P;
- and
- *, which may be identical or different, represents any attachment to a carbon atom or to a heteroatom chosen from O, S, N and P.
A rubber article reinforced with at least one metallic or metallized reinforcer, at least a surface of which is at least partially metallic, the at least partially metallic surface being coated with a polybenzoxazine sulfide, repeating units of which include at least one unit corresponding to formula (I) or (II):
- in which the two oxazine rings are connected together via a central aromatic group a is an integer from 1 to 4, x is an integer from 1 to 8, R represents hydrogen or a hydrocarbon-based group including 1 to 10 carbon atoms and optionally a heteroatom chosen from O, S, N and P, and *, which may be identical or different, represents any attachment to a carbon atom or to a heteroatom chosen from O, S, N and P.
A motor vehicle tire reinforced with at least one metallic or metallized reinforcer, at least a surface of which is at least partially metallic, the at least partially metallic surface being coated with a polybenzoxazine sulfide, repeating units of which include at least one unit corresponding to formula (I) or (II):
- in which the two oxazine rings are connected together via a central aromatic group, a is an integer from 1 to 4, x is an integer from 1 to 8, R represents hydrogen or a hydrocarbon-based group including 1 to 10 carbon atoms and optionally a heteroatom chosen from O, S, N and P, and *, which may be identical or different, represents any attachment to a carbon atom or to a heteroatom chosen from O, S, N and P.
Dependencies are inferred from the claim text.