Abstract: An adhesive for bonding comprising a blocked isocyanate and organic carbonate, and optionally a phenoxy resin, catalyst, metal acetylacetonate, and a process for using such an adhesive to bond elastomers, such as liquid silicone rubber to substrates, such as polycarbonate in an injection molding process.

Abstract: An adhesive composition containing an aqueous butadiene polymer latex, and an acid scavenging compound, wherein the adhesive comprises essentially no phenolic resin or methylene donor compounds. The aqueous covercoat adhesive is particularly well suited for rubber to metal bonding applications. The adhesive have shown excellent adhesion to a number of compounds but perform best on natural rubber compounds and prefer higher cure temperatures to lower cure temperatures. Further, the formulation has been developed without the need for a methylene donor such as 2-polyoxymethylene dimethylether (gamma POM).

Abstract: An adhesive composition containing an aqueous butadiene polymer latex, and an acid scavenging compound, wherein the adhesive comprises essentially no phenolic resin or methylene donor compounds. The aqueous covercoat adhesive is particularly well suited for rubber to metal bonding applications. The adhesive have shown excellent adhesion to a number of compounds but perform best on natural rubber compounds and prefer higher cure temperatures to lower cure temperatures. Further, the formulation has been developed without the need for a methylene donor such as 2-polyoxymethylene dimethylether (gamma POM).

Abstract: An aqueous adhesive composition that includes (A) a butadiene polymer latex that is prepared by an emulsion polymerization in the presence of a polyvinyl alcohol stabilizer and (B) a phenolic resin, preferably a polyvinyl alcohol stabilized resole.

Abstract: A method for bonding two substrates that includes applying an autodepositable adhesive to one of the substrates and then bonding the substrates together. This method is especially useful for bonding elastomers to metals. According to a first embodiment, the autodepositable adhesive is a one coat adhesive having a low pH (approximately 1-3) and including (A) a flexibilizer or film-former, (B) optionally, an aqueous dispersion of a phenolic resin that includes water and a reaction product of a phenolic resin precursor, a modifying agent and, optionally, a multi-hydroxy phenolic compound wherein the modifying agent includes at least one functional moiety that enables the modifying agent to react with the phenolic resin precursor and at least one ionic moiety, and (C) an acid.

Abstract: What is disclosed are adhesives and bonding methods employing a single coat of a solvent-based adhesive that effectively bonds thermoplastic polymers and especially thermoplastic elastomers. The adhesive components are a organosilane component selected from organosilane-isocyanate adduct and isocyanato-organosilane, a post-chlorinated polymer containing propylene repeating units or derivative thereof, and solvent. Also disclosed are methods for joining a rigid, structural substrate to a molten polymer such as a TPE via injection molding or extrusion. Durable adhesion between the adhesive treated portion of the rigid substrate and the melt-processed polymer is achieved with or without a previous heat treatment on the adhesive-coated substrate prior to joining to the thermoplastic melt.

Abstract: Adhesive compositions effective for bonding runner to metal and containing no more than about 1000 ppm of lead especially adapted to bond vulcanized elastomers to rigid substrates, like metal are disclosed. The adhesives are useful in combination with primer coats, and as one-coat adhesives and provide durable, rubber tearing primary adhesive bonds after exposure to harsh conditions. The adhesives exhibit excellent bond versatility, sweep resistance, and in-can storage stability. In one embodiment, the adhesive compositions of the present invention consist essentially of less than 1000 ppm of lead, at least one diluent as water or organic solvent, a halogen-containing film former, optionally a nitroso compound, brominated dichlorobutadiene, and/or adhesion promoter, and an acid scavenger comprising zinc phosphate.

Abstract: A method for applying at least one coating composition to an electrochemically active metal substrate, and the coated substrate produced thereby are disclosed. Preferably, an articulable electromechanical device such as a robot arm is utilized to aid in precision coating electrochemically active metal substrates, particularly complex shaped electrochemically active metal substrates through autodeposition. The electromechanical device is articulable through a wide range of motions and can substantially eliminate drip edges or pockets of retained coating in otherwise poorly draining areas of the substrate, producing fully and/or evenly coated, aesthetically pleasing coated substrates. Throughput of coated substrates is maximized through the method of the present invention.

Abstract: What is disclosed are adhesives and bonding methods employing a single coat of a solvent-based adhesive that effectively bonds thermoplastic polymers and especially thermoplastic elastomers. The adhesive components are a organosilane component selected from organosilane-isocyanate adduct and isocyanato-organosilane, a post-chlorinated polymer containing propylene repeating units or derivative thereof, and solvent. Also disclosed are methods for joining a rigid, structural substrate to a molten polymer such as a TPE via injection molding or extrusion. Durable adhesion between the adhesive treated portion of the rigid substrate and the melt-processed polymer is achieved with or without a previous heat treatment on the adhesive-coated substrate prior to joining to the thermoplastic melt.

Abstract: What is disclosed are bonded articles of a peroxide cured elastomer and a substrate which an adhesive composition that exhibits substantial environmental resistance and rubber tearing bonds. The invention is also directed to adhesives consisting essentially of water, a phenol-aldehyde condensate, an etherified bis phenol aldehyde adduct and PVOH colloid protectant, optional polymeric film former, acid scavenger and precipitated silica. The present invention is further directed to a method of bonding peroxide-curable elastomers to metallic surfaces whereby the substrate is coated with the adhesive composition, drying the adhesive composition coating, applying a peroxide-cured elastomer to the adhesive composition coating, and curing the assembly with heat and/or pressure.

Abstract: An aqueous adhesive composition, as for bonding nitrile rubbers to a metal substrate, has very good pre-bake resistance. The adhesive composition comprises a phenolic novolac or resole resin, chlorinated natural rubber, a reactive fillers, and precipitated silica. Utilization of the adhesive composition results in essentially failure of the nitrile rubber.

Abstract: Adhesive compositions effective for bonding runner to metal and containing no more than about 1000 ppm of lead especially adapted to bond vulcanized elastomers to rigid substrates, like metal are disclosed. The adhesives are useful in combination with primer coats, and as one-coat adhesives and provide durable, rubber tearing primary adhesive bonds after exposure to harsh conditions. The adhesives exhibit excellent bond versatility, sweep resistance, and in-can storage stability. In one embodiment, the adhesive compositions of the present invention consist essentially of less than 1000 ppm of lead, at least one diluent as water or organic solvent, a halogen-containing film former, optionally a nitroso compound, brominated dichlorobutadiene, and/or adhesion promoter, and an acid scavenger comprising zinc phosphate.

Abstract: A method for bonding two substrates that includes applying an autodepositable adhesive to one of the substrates and then bonding the substrates together. This method is especially useful for bonding elastomers to metals. According to a first embodiment, the autodepositable adhesive is a one coat adhesive having a low pH (approximately 1-3) and including (A) a flexibilizer or film-former, (B) optionally, an aqueous dispersion of a phenolic resin that includes water and a reaction product of a phenolic resin precursor, a modifying agent and, optionally, a multi-hydroxy phenolic compound wherein the modifying agent includes at least one functional moiety that enables the modifying agent to react with the phenolic resin precursor and at least one ionic moiety, and (C) an acid.

Abstract: An adhesive composition useful for bonding silicone and other peroxide-cured elastomers is disclosed. The adhesive comprises a solvent, a crosslinker and a film former reactive with the elastomer for bonding the elastomer to a substrate. Preferably, the crosslinker is at least one organic compound having at least two maleimide groups, and the film former is a block copolymer with a polysilicone segment and a hard segment. A method of bonding an elastomer to a substrate, a composite and an article of manufacture are also disclosed.

Abstract: A method for bonding two substrates that includes applying an autodepositable adhesive to one of the substrates and then bonding the substrates together. This method is especially useful for bonding elastomers to metals. According to a first embodiment, the autodepositable adhesive is a one coat adhesive having a low pH (approximately 1-3) and including (A) a flexibilizer or film-former, (B) optionally, an aqueous dispersion of a phenolic resin that includes water and a reaction product of a phenolic resin precursor, a modifying agent and, optionally, a multi-hydroxy phenolic compound wherein the modifying agent includes at least one functional moiety that enables the modifying agent to react with the phenolic resin precursor and at least one ionic moiety, and (C) an acid.

Abstract: What is disclosed is an adhesive composition that exhibits substantial durability in bonding peroxide cured elastomers to many substrates. The invention is directed to adhesives consisting essentially of a diluent, a maleimide compound, acid scavenger, a polymeric film former and precipitated silica, optionally a phenolic resole, polyyisocyanate, or isocyanatosilane. The present invention is further directed to a method of bonding peroxide-curable elastomers to metallic surfaces whereby the substrate ius coated with the adhesive composition, drying the adhesive composition coating, applying a peroxide-cured elastomer to the adhesive composition coating, and curing the assembly with heat and/or pressure.

Abstract: An aqueous adhesive composition, as for bonding nitrile rubbers to a metal substrate, has very good pre-bake resistance. The adhesive composition comprises a phenolic novolac or resole resin, chlorinated natural rubber, a reactive fillers, and precipitated silica. Utilization of the adhesive composition results in essentially failure of the nitrile rubber.

Abstract: A method for bonding two substrates that includes applying an autodepositable adhesive to one of the substrates and then bonding the substrates together. This method is especially useful for bonding elastomers to metals. According to a first embodiment, the autodepositable adhesive is a one coat adhesive having a low pH (approximately 1-3) and including (A) a flexibilizer or film-former, (B) optionally, an aqueous dispersion of a phenolic resin that includes water and a reaction product of a phenolic resin precursor, a modifying agent and, optionally, a multi-hydroxy phenolic compound wherein the modifying agent includes at least one functional moiety that enables the modifying agent to react with the phenolic resin precursor and at least one ionic moiety, and (C) an acid.

Abstract: An adhesive composition containing a polyvinyl alcohol-stabilized butadiene polymer latex and a methylene donor compound. The butadiene polymer latex is prepared by an emulsion polymerization in the presence of polyvinyl alcohol. The adhesive composition may also contain other optional ingredients such as a supplemental polymeric film-forming component, a nitroso compound crosslinker, a maleimide compound crosslinker, a vulcanizing agent, and an acid-scavenging compound. The polyvinyl alcohol-stabilized butadiene polymer latex and methylene donor compound combine to provide a tightly crosslinked, robust film which provides for excellent adhesion and environmental resistance.

Abstract: A composite including an elastomer of low unsaturation, a coated reinforcing fiber, an adhesive composition that bonds the elastomer to the coated reinforcing fiber including a halogenated polyolefin, a nitroso compound, a maleimide, the maleimide present in an amount of at least 50% by weight of the halogenated polyolefin.