Abstract: A polymeric composition comprises a thermosetting resin and a polyolefin resin that cures to a semi-interpenetrating polymer network and is useful for producing plastic shipping and storage containers. The containers exhibit one or more friction surfaces, and can include fire resistance and other properties derived from property enhancing agents.

Abstract: A polymeric composition comprises a thermosetting resin and a polyolefin resin that cures to a semi-interpenetrating polymer network and is useful for producing plastic shipping and storage containers. The containers exhibit one or more friction surfaces, and can include fire resistance and other properties derived from property enhancing agents.

Abstract: A polymeric composition comprises a thermosetting resin and a polyolefin resin that cures to a semi-interpenetrating polymer network and is useful for producing plastic shipping and storage containers. The containers exhibit one or more friction surfaces, and can include fire resistance and other properties derived from property enhancing agents.

Abstract: An environmental closure and method are provided, for use in generating an environmental seal about wire splices or the like. The preferred closure comprises a unitary construction having an outer, openable, shell with an internal biasing mechanism. In use, viscous sealant material is positioned within the closure such that the biasing mechanism generally forces sealant material around a junction to be sealed and, in particular, between adjacent wires in such junctions. In one application relatively highly viscous sealant material is utilized in association with junctions in a manner according to the present invention. In another general application, a relatively low viscosity sealant is used; the low viscosity sealant being generally bordered by high viscosity sealant, to inhibit leakage outwardly from a closure during use.