Sulfurized polybenzoxazine that can be used for coating metal and for the bonding of same to rubber
AssigneeCompagnie Generale Des Etablissements Michelin
InventorsMilan Fedurco, Marco Ribezzo
Life of this patent
Estimating the term…
Abstract
A polybenzoxazine sulfide has repeating units including 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 polybenzoxazine can be used as an adhesive layer on metal, in particular for the adhesive bonding of a metallic substrate, in particular made of carbon steel, to rubber.
Claims19
A polybenzoxazine sulfide or ring-opened polybenzoxazine sulfide, repeating units of which include at least one unit corresponding to formula (I) or (II):
- in which the 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 polybenzoxazine sulfide or ring-opened polybenzoxazine sulfide, 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):
Dependencies are inferred from the claim text.