Elastomer-modified epoxy coatings adhesion

The chemical literature reveals relatively new and varied interests for nitrile elastomer-modification of epoxy resins in diverse areas of coatings and primers. Desirable properties such as impact resistance, mandrel bend and adhesion improvement are attainable with little or no sacrifice in critical film properties. In some instances, it is documented that proper elastomer modification of select epoxy coatings will enhance corrosion and moisture resistance. This may relate to better film/substrate adhesion durability. The combined literature, journal and patent, has led to continuing study of nitrile elastomer modified epoxy coatings. [Pg.16]

As previously mentioned in this chapter, carboxyl-reactive nitrile liquids appear to be the preferred modifiers for latent epoxy structural film adhesives. One of the major components used in formulating these adhesives is a solid epoxy resin of similar molecular weight (1000). This limited coatings study suggests that similar elastomer-modified epoxy resins are equally impressive in solution epoxy coatings. In addition. Table XI/Recipe 3 features a high impact coating modified with both liquid and solid carboxylated nitrile elastomers. [Pg.16]

W.D. Bascom and S. Mostovoy, "Adhesive Fatigue Failure of an Elastomer-Modified Epoxy, ACS Org. Coat, and Plast. Preprints, , 152 (1978). [Pg.480]

Elastomer-modified epoxy resins are used in composites and structural adhesives, coatings, and electronic applications. Similar approach to toughen epoxy vinyl esters using other elastomeric materials has been reported (204). Other elastomer-modified epoxies include epoxy-terminated urethane prepolymers, epoxy-terminated polysulfide, epoxy-acrylated urethane, and epoxidized polybutadiene. Preformed dispersions of epoxy-insoluble elastomers have been developed and reported to achieve toughening without Tg reduction (205,206). [Pg.2746]

Uses Modifier for elastomers, adhesives, fibers reactive diluent for epoxies reactive Intermediate for coatings sizing/finishing agent for fi-... [Pg.968]

Uses Modifier for elastomers, adhesives, fibers reactive diluent for epoxies reactive intermediate for coatings sizing/finishing agent for fiberglass silane intermediate in elec, coatings stabilizer of chlorinated compds., vinyl resins, rubber defoamer comonomer for polyepichlorohydrin rubber, unsat. polyester resins, and crosslinked PU elastomers curing system additive in bisphenol A-epichlorohydrin epoxies for food-contact articles... [Pg.162]

Epoxy, bisphenol A Epoxy, bisphenol F Epoxy resin Ethylene/propylene/dicyclopentadiene terpolymer Ethylene-propylene-ethyl idene norbomene Glycidyl neodecanoate PEG-4 dimethacrylate 3-(n-Pentadecyl) phenol Saccharin sodium anhydrous Saccharin sodium dihydrate Sodium-4-chlorophthalate resin modifier, adhesive coating elastomer Glyceryl hydrogenated rosinate resin modifier, adhesive coating film-formers Glyceryl hydrogenated rosinate resin modifier, adhesives... [Pg.5616]