Abstract: A surface-treated polymer film is disclosed. The film has a polymer substrate having a first surface and an opposing second surface and a primer applied to the first surface of the substrate. The primer is a cross-linked acrylic polymer or other suitable polymer. A method of insulating a surface with an insulation material constructed from the surface-treated polymer is also disclosed.

Abstract: A surface-treated polymer film is disclosed. The film has a polymer substrate having a first surface and an opposing second surface and a primer applied to the first surface of the substrate. The primer is a cross-linked acrylic polymer or other suitable polymer. A method of insulating a surface with an insulation material constructed from the surface-treated polymer is also disclosed.

Abstract: An insulation apparatus is provided that may comprise an insulation member with an inner cavity and an elongated slit, a facing substantially covering the insulation member while permitting access to the slit, a closure member extending from the facing and traversing the slit to prevent access to the inner cavity in a temporarily closed position and a permanently closed position. An adhesive bead may be disposed on the inner surface of the closure member to secure the closure member to hold the closure member in a temporarily closed position, and an adhesive tape secured to the inner surface of the closure member capable of engaging the underlying facing during the permanently closed position.

Abstract: A gas sensor for use in monitoring gases such as H2S, NO2 or SO2 comprises a film or layer of non-protonated polyaniline as the gas sensing material.

Abstract: A hydrocyclonic apparatus has been designed to separate a less dense dispersed phase (either liquid or solid) from a more dense liquid phase. The cyclone separator consists of two generally cylindrical portions positioned around the longitudinal axis in a `piggyback` manner. A vortex finder with an orifice plate captures the dispersed particles entrained in a local secondary flow established by the unique operating and design parameters of the device. Clear fluid is removed from the apparatus through an underflow tube opposite the vortex finder tube. The liquid feed containing dispersed particles is introduced into the primary cyclone around the vortex finder as a swirling annular jet. Another stream, containing no dispersed phase, is introduced as a tangential flow surrounding the annular jet. A polymer stream is injected into the core of the vortex flow of the primary cyclone to increase the stability of the vortex core and to moderate the turbulence.