Abstract: Two-shot hot-melt bookbinding adhesives, books and related articles bound thereby, a method for applying such adhesives, and a system for performing the method are provided. The disclosed bookbinding developments all utilize a low viscosity primer formulation having a viscosity of between about 1100 and about 2500 cps at a temperature of about 350.degree. F. and a cover glue formulation having a viscosity which is greater than the viscosity of the primer formulations at a temperature of about 350.degree. F. In the preferred embodiments, the primer and cover glue formulations contain a backbone polymer which includes an ethylene-based polymer either alone or in combination with another polymer. The disclosed primer formulations are especially useful in binding books made with paper substrates that present difficult adhesion problems. The disclosed cover glue formulations are capable of penetrating, fusing and re-enforcing the primer while simultaneously adhering to a soft cover or liner substrate.

Abstract: Polymerizable acrylic monomers, and anaerobic adhesives which contain such monomers, wherein the acrylic monomers contain internal chain unsaturation in addition to terminal acrylic unsaturation.

Abstract: Polymerizable acrylic monomers, and anaerobic adhesives which contain such monomers, wherein the acrylic monomers contain internal chain unsaturation in addition to terminal acrylic unsaturation.

Abstract: Paper products, such as wrapped rolls of newsprint, are provided wherein paper is bonded to paper by a glue formulation that is pumpable at elevated temperatures, which glue formulation includes animal glue, water and a water-soluble salt having an anion that is substantially divalent at the pH of the glue formulation. The paper product is prepared by heating the glue formulation and applying same at an elevated temperature.

Abstract: Articles are provided that include pressure sensitive adhesive compositions which are especially suitable for forming contact bonds that are resealable at room temperature. Such adhesive compositions include a blend of a linear or a radial block copolymer, an end-block modifying resin compatible with the end or thermoplastic block of the copolymer and incompatible with the mid or elastomeric block, a plasticizing process oil compatible with the mid or elastomeric block; and, only if desired, not more than about 14 weight percent of a mid block or elastomeric block associating or modifying resin compatible with the mid or elastomeric block and incompatible with the end or thermoplastic block. Articles that particularly advantageously utilize these compositions are thin-walled storage or sandwich bag products made of a polyolefin or other film that has a releasable and resealable sealing strip. Others include peelable labels and note pads and dispensers for thin storage wrap products.

Abstract: Adhesives and coatings, especially two-compartment epoxy laminating adhesives, are prepared so as to be flame-resistant in the so-called part B or polyamide component thereof by including in that compartment a chlorinated hydrocarbon solvent together with an adduct of a polyamide and an aromatic hydroxy or epoxy compound. By this approach, the amine is tied up and is rendered resistant to premature reaction with the chlorinated hydrocarbon solvent within the part B component, which premature reaction would lead to the formation of undesirable crystals within the part B component and reduce its pot life. When the part B component is blended with an epoxy-containing art B component, the polyamine adduct gradually disassociates in order to free the polyamine to catalyze setting of the two-component system, particularly the epoxy resin of the part A component.

Abstract: Polymerizable acrylic monomers, and anaerobic adhesives which contain such monomers, wherein the acrylic monomers contain internal chain unsaturation in addition to terminal acrylic unsaturation.

Abstract: Pressure sensitive adhesive compositions are provided that are especially suitable for forming contact bonds that are resealable to polyethylene surfaces at room temperature. Such adhesive compositions include a blend of a linear or a radial block copolymer, an end-block modifying resin compatible with the end or thermoplastic block of the copolymer and incompatible with the mid of elastomeric block, a plasticizing process oil compatible with the mid or elastomeric block, and, only if desired, not more than about 14 weight percent of a mid block or elastomeric block associating or modifying resin compatible with the mid or elastomeric block and incompatible with the end or thermoplastic block. A particularly advantageous utilization of these compositions is as a releasable and resealable sealing strip for thin-walled storage or sandwich bag products made of a polyolefin film.

Abstract: Adhesives and coatings, especially two-component epoxy laminating adhesives, are prepared so as to be flame-resistant in the so-called part B or polyamide component thereof by including in that component a chlorinated hydrocarbon solvent together with an adduct of a polyamide and an aromatic hydroxy or epoxy compound. By this approach, the amine is tied up and is rendered resistant to premature reaction with the chlorinated hydrocarbon solvent within the part B component, which premature reaction would lead to the formation of undesirable crystals within the part B component and reduce its pot life. When the part B component is blended with an epoxy-containing part B component, the polyamine adduct gradually disassociates in order to free the polyamine to catalyze setting of the two-component system, particularly the epoxy resin of the part A component.

Abstract: Non-terminal hydroxy diesters of unsaturated dicarboxylic acids or anhydrides are used to plasticize acrylic monomers containing internal chain unsaturation in anaerobic adhesive systems.