Waterbased one coat adhesive composition

A bonded assembly comprising;

• (a) a rigid substrate having an interfacial bond area,
• (b) an unvulcanized rubber;
• and
• (c) an aqueous adhesive composition bonding the rigid substrate to the unvulcanized rubber;
• wherein the aqueous adhesive composition comprises an admixture of:
• (i) a first aqueous composition comprising, (1) one or more film forming polymers, (2) one or more lower crystallinity polynitroso compounds, (3) one or more higher crystallinity polynitroso compounds, and (4) one or more bismaleimide-containing monomers;
• and
• (ii) a second aqueous composition comprising (1) an aqueous dispersion of at least one phenolic resin which is a condensation product of a phenol and formaldehyde, wherein the aqueous dispersion is stabilized by at least one polyacrylate derived from a monomer represented by Formula I:
• wherein R1 is H, CH3, C2 to C4 alkyl or C6 to C12 aryl;
• R2 is H, OH, CN, CH3, C2 to C8 alkyl, or a halogen;
• and R3 and R4 are each independently H, CH3, C2 to C8 alkyl, C6 to C12 aryl, O—CH3, O—C2 to C8 alkyl, and O-aryl;
• (2) one or more latices formed from one or more halogenated polyolefins;
• and (3) one or more metal oxides.

A method for bonding rubber to a rigid substrate, the method comprising:

• (a) interposing an aqueous adhesive composition between at least a portion of a rigid substrate and an unvulcanized rubber to form an assemblage, wherein the aqueous adhesive composition comprises:
• (i) a first aqueous composition comprising, (a) one or more film forming polymers, (2) one or more lower crystallinity polynitroso compounds, (3) one or more higher crystallinity polynitroso compounds, and (4) one or more bismaleimide-containing monomers;
• and
• (ii) a second aqueous composition comprising (1) an aqueous dispersion of at least one phenolic resin which is a condensation product of a phenol and formaldehyde, wherein the aqueous dispersion is stabilized by at least one polyacrylate derived from a monomer represented by Formula I:
• wherein R1 is H, CH3, C2 to C4 alkyl or C6 to C12 aryl;
• R2 is H, OH, CN, CH3, C2 to C8 alkyl, or a halogen;
• and R3 and R4 are each independently H, CH3, C2 to C8 alkyl, C6 to C12 aryl, O—CH3, O—C2 to C8 alkyl, and O-aryl;
• (2) one or more latices formed from one or more halogenated polyolefins;
• and (3) one or more metal oxides;
• and
• (b) heating the assemblage to a vulcanization temperature and under pressure for a time sufficient to vulcanize the unvulcanized rubber and the aqueous adhesive composition thereby bonding the rubber to the rigid substrate.