Abstract: Pressure-sensitive adhesive tape, the adhesive layer of which is a copolymer of alkyl acrylate such as isooctyl acrylate and an acid such as acrylic acid and which differs from the prior art in its high acid content and by including a small amount of lower-alkoxylated amino formaldehyde condensate as a latent crosslinking agent. The adhesive does not become crosslinked until it is heated. After the tape has been applied and heated to crosslink the adhesive, the resultant bonds have outstanding resistance to peel forces combined with surprisingly good resistance to shear forces, especially at elevated temperatures.

Abstract: Pressure-sensitive adhesive tape, the adhesive layer of which is a copolymer of alkyl acrylate such as isooctyl acrylate and acid such as acrylic acid which differs from the prior art by including a small amount of lower-alkoxylated amino formaldehyde condensate as a latent crosslinking agent. The adhesive does not become crosslinked until it is heated. After the tape has been applied and heated to crosslink the adhesive, it exhibits excellent resistance to common organic solvents and also exceptional resistance to shear failure, especially at elevated temperatures. The adhesive has excellent electrical-insulating properties.

Abstract: Electrical-insulating pressure-sensitive adhesive tape, the backing of which is a web of oriented polymeric fibers impregnated with a crosslinked polymeric resin to provide a voids-volume of less than 60%.

Abstract: A flexible, fire retardant electrically insulating film material comprising a thermoplastic film backing and a thermoset fire retardant coating on one or both surfaces of the backing. Preferably, a pressure sensitive adhesive coating is applied to either the film backing or overcoated on the thermoset coating.

Abstract: A flame-retardant pressure-sensitive adhesive composition that is compatible with enameled magnet wire is provided by adding to a base adhesive material certain halogenated organic compounds, such as decabromodiphenyl oxide, which exhibit little halogen or other loss upon exposure to elevated temperature.

Abstract: Metal-clad dielectric sheeting useful in the manufacture of printed circuitry comprising an electrically conductive metallic layer adhered to a nonwoven web that comprises a unique fiber blend compacted and held together by a polymeric binder material. The fiber blend includes heat-resistant fibers (preferably aromatic polyamide fibers) and high-tensile-strength fibers that absorb little moisture (preferably polyester fibers); and the amount of fibers that absorb moisture is held to a low amount.