An improved coating is provided for fiberglass insulation articles which is coated onto the fiberglass insulation, thereby providing the fiberglass insulation with good mechanical properties and other desirable properties such as low emission of volatiles, fire retardency, low potential smoke generation and low air friction.
A rigid fiber glass duct board for air ducts in which the air contacting surface is a mat facing formed from a saturated polyester/glass mat which presents a smooth surface to flowing air and hence avoids surface degradation at very high air velocities. A method of forming such a board is also disclosed.
A method of providing a fire barrier that includes coating an opening in a structure with a composition that includes an elastomer. The composition is substantially free of volatile organic compounds and, when dry, exhibits a tensile strength of from about 300 psi to about 1500 psi, at least about 600% elongation, a modulus of from about 200 psi to about 600 psi, and a tensile toughness of greater than 10 in-lb.
The present invention provides novel filament winding, hand lay-up, reaction injection molding, and pultrusion methods for producing novel articles. Each of the inventive methods utilizes a resin composition comprising a polyester base resin, a viscosity and flow improving agent, and a filler. The viscosity and flow improving agent comprises a phosphated polyester, said phosphated polyester being a saturated polyester having acidic groups. Using the inventive methods, articles having exceptionally high aluminum trihydrate loadings can be formed. These articles exhibit excellent flame resistance and smoke evolution properties.
A method of providing a fire barrier that includes coating an opening in a structure with a composition that includes an elastomer. The composition is substantially free of volatile organic compounds and, when dry, exhibits a tensile strength of from about 300 psi to about 1500 psi, at least about 600% elongation, a modulus of from about 200 psi to about 600 psi, and a tensile toughness of greater than 10 in-lb.
A method of directing extruded synthetic fibers toward at least one surface of a mineral fiber insulation batt, and corresponding apparatus and resulting product. In certain embodiments, a row of extrusion heads is provided for directing extruded synthetic fibers (e.g. fibers including ethyl vinyl acetate or EVA) toward a surface(s) of the batt(s) to be impregnated with same. optionally, extrusion heads may be provided all around the batts so as to impregnate substantially all surfaces thereof with the extruded synthetic fibers. As the fibers exit the heads, they are hit with pressurized heated air streams which cause them to go into an insipid spin which increases directional tensile strength of the resulting batt in all directions. In certain embodiments, every other batt of a plurality of batts passes over an elongated member which extends over top of the conveyor in order to more efficiently impregnate edge surfaces of the batts.
