Abstract: Adhesives comprising: a) 35-85 weight percent of a pressure sensitive adhesive comprising: i) a polymer selected from rubbers and polyacrylate polymers and ii) optionally one or more tackifiers; and dispersed therein b) 15-50 weight percent fire retardant (FR) particles comprising one or more phosphorus-containing compounds selected from organophosphine oxides and organophosphinates. In some embodiments, the phosphorus-containing compounds comprise 35-65 weight percent of an organophosphine oxide and 65-35 weight percent of an organophosphinate. The FR particles may have a D50 particle size of 1-120 micrometers, 40-120 micrometers, or 70-120 micrometers. Adhesive films comprising the adhesives described herein may be free-standing adhesive films or adhesive layers comprised in tapes.

Abstract: A composition includes water, a polymeric adhesive dispersed in the composition, and a water-soluble polymer dissolved in the composition. The water-soluble polymer has a weight average molecular weight of at least 90,000 grams per mole. Typically, and advantageously, upon spraying the composition, the composition provides filaments including the polymeric adhesive and the water-soluble polymer. A process for making the composition, a method of using the composition, and a method for making a bonded article using the composition are also described.

Abstract: A composition includes an acrylic polymer, an emulsifier, and water. The acrylic polymer includes monomer units of at least one alkyl acrylate or alkyl methacrylate, wherein alkyl has at least 8 carbon atoms. Not more than one percent by weight of monomer units include a carboxylic acid, sulfonic acid, or phosphonic acid, based on the total weight of monomer units in the acrylic polymer. The composition is an emulsion of the acrylic polymer in water. The composition is a spray adhesive composition and/or coagulates upon being subjected to shear forces. A process for making the composition and a method for making a bonded article using the composition are also described.

Abstract: An adhesive spray nozzle, comprising a nozzle tip having a deflector mounted on the nozzle tip adjacent the spray adhesive outlet, where the deflector includes angled surfaces configured to impinge upon the adhesive spray exiting the outlet for spray adhesive.

Abstract: Adhesives comprising: a) 35-85 weight percent of a pressure sensitive adhesive comprising: i) a polymer selected from rubbers and polyacrylate polymers and ii) optionally one or more tackifiers; and dispersed therein b) 15-50 weight percent fire retardant (FR) particles comprising one or more phosphorus-containing compounds selected from organophosphine oxides and organophosphi-nates. In some embodiments, the phosphorus-containing compounds comprise 35-65 weight percent of an organophosphine oxide and 65-35 weight percent of an organophosphinate. The FR particles may have a D50 particle size of 1-120 micrometers, 40-120 micrometers, or 70-120 micrometers. Adhesive films comprising the adhesives described herein may be free-standing adhesive films or adhesive layers comprised in tapes.

Abstract: A fire resistant (FR) pressure sensitive adhesive (PSA) comprises a blend of: a) a (meth)acrylate polymer comprising cationic monomer units; and b) a non-halogenated flame retardant. In some embodiments, the cationic monomer units comprise cationic quaternary amine groups. The (meth)acrylate polymer may additionally comprise anionic monomer units, in which case the molar ratio of anionic monomer units present in the polymer to cationic monomer units present in the polymer is typically less than 0.9. The FR PSA may be aqueous based and may be free of common solvents. The FR PSA may demonstrate improved flame retardance with good compatibility between PSA and flame retardant, and may retain compatibility even at high loadings of flame retardant.