Abstract: An acoustic baffle assembly for sealing or baffling a hollow body having a mass of heat activated expandable material that is capable of activating at a predetermined temperature. A substrate supports the mass. The substrate has a central portion and spaced apart projections extending outwardly from the central portion. The projections are configured to control expansion of the mass.

Abstract: An acoustic baffle assembly for sealing or baffling a hollow body having a mass of heat activated expandable material that is capable of activating at a predetermined temperature. A substrate supports the mass. The substrate has a central portion and spaced apart projections extending outwardly from the central portion. The projections are configured to control expansion of the mass.

Abstract: A first substrate may be joined to a second substrate using an adhesive body. The adhesive body is formed from an adhesive composition containing at least one epoxy resin, at least one heat-activatable curing agent, and at least one radiation-curable compound. A first surface of the adhesive body is exposed to an amount of radiation effective to cure at least a portion of the at least one radiation-curable compound present in proximity to such first surface, thereby rendering said first surface less tacky and/or more resistant to deformation. A second surface of the adhesive body is then applied to a surface of said first substrate. A surface of the second substrate is thereafter positioned proximate to or in contact with the first surface of the adhesive body and the adhesive body heated to a temperature effective to activate the heat-activated curing agent and induce curing of the at least one epoxy resin.

Abstract: A solventless process for making a polymeric composition having at least two pendant carboxyl groups, which comprises reacting at least one molecule of water with at least one dicarboxylic acid anhydride group of at least one suitable polymer.

Abstract: A solventless process for making a polymeric composition having at least two pendant carboxyl groups, which comprises reacting at least one molecule of water with at least one dicarboxylic acid anhydride group of at least one suitable polymer.

Abstract: Radiation-curable resins as well as thermal and electron-beam-curable resins are provided comprising a polymeric backbone having acrylate or vinyl ether substituents and an ionically bonded neutralizing agent such as an aminoacrylate. These resins are hydrophilic and water-dispersible before curing, but resistant to most solvents including water after curing while preserving a hard, strong, adhesive character which makes them suitable for use as coatings and fabrication of three-dimensional structures in a wide variety of applications.