Abstract: A fibrous insulation media is formed from a non-woven mat of thermoplastic fibers having a mean diameter of less than about 15 microns. Preferably, when used as an acoustical insulation, the media is formed of fibers having a mean diameter of less than about 13 microns; the media has a density of less than about 60 Kg/m3; and the media has a Fraiser air permeability of less than 75 cubic feet per minute per square foot of surface area. The media has first and second major surfaces and a fibrous core with at least one of the major surfaces having an integral skin thereon. The skin is formed by melting fibers at and immediately adjacent the major surface of the mat formed into the media to form a thermoplastic melt layer which is subsequently solidified into a skin on the major surface of the mat. The thermoplastic fibers of the mat are point bonded together at spaced apart locations to increase the integrity of the mat.

Abstract: An encapsulated insulation composite system for increasing the burn through resistance of an aircraft fuselage includes: an insulation layer of glass fiber or foam insulation and a coating or interleaf barrier layer of a high temperature resistant material and/or a coating or barrier layer of a high temperature resistant material on an outer major surface of the insulation layer of the composite and a film encapsulating the composite. Preferably, the barrier layer or layers include a reflective mineral, such as a reflective mineral containing coating carried on a sheet material. Preferably, the encapsulating film is a polymeric film such as a polyimide film.

Abstract: An on-line method of forming a multilayered coating on a sheet of fibrous or foam insulation, includes: applying a first coating layer of a first coating composition directly to a first major surface of the insulation sheet; heating an exposed major surface of the first coating layer to stabilize the coating composition at the exposed major surface of the first coating layer so that the first coating layer remains an essentially discrete layer when a second coating layer is applied to the exposed major surface of the first coating layer and to only partially cure the coating composition at the exposed major surface of the coating composition so that a second coating layer applied to the exposed major surface of the first coating layer will readily bond to the first coating layer; applying a second coating layer of a second coating composition directly to the exposed major surface of the first coating layer subsequent to heating the exposed major surface of the first coating layer; and heating the insulation s

Abstract: A fiber glass mat especially useful for bonding to wood contains glass fibers and a “B” staged resin, and the method of making the mat, are disclosed. A substantial portion of the resin binder can be a furfural alcohol, phenol formaldehyde, melamine formaldehyde, or any other resin that can be “B” staged.

Abstract: An insulation product especially suited for use as an aircraft insulation includes a blanket of randomly oriented entangled glass fibers bonded together by a thermosetting binder and having a mean diameter of about 1+/−0.25 microns. The blanket has a density between about 0.25 and about 1.5 pounds per cubic foot and a thickness between about 0.35 inches and about 2.0 inches. The blanket, exclusive of anything else, has an average machine direction tensile strength of at least 0.6 pounds/inch of blanket width and an average cross machine direction tensile strength of at least 0.3 pounds/inch of blanket length; a transverse airflow resistance between about 300 Rayls and about 1800 Rayls; and a thermal conductivity equal to or less than about 0.32 BTU-in/hr-ft2-° F. The glass fibers of the blanket have a biodissolution rate in excess of 150 ng/cm2/hr.

Abstract: A sized staple fiber product that disperses quickly, thoroughly and uniformly in water is particularly useful in the manufacture of gypsum board by the slurry process. An aqueous chemical size composiiton on the surface of the fibers contains a high level of surfactant and can contain a polymer film former and a biocide. Preferably, the fiber is chopped glass fiber. Novel sizing composition and methods of making and using the fiber are also disclosed.

Abstract: A glass fiber wallcovering is made by sequential application of hydrophilic and hydrophobic agents to selectively create an image for painted effects.

Abstract: A method of making a fiber glass mat especially useful for bonding to wood contains glass fibers and a “B” staged resin is disclosed. A substantial portion of the resin binder can be a furfuryl alcohol formaldehyde, phenol formaldehyde, melamine formaldehyde, or any other resin that can be “B” staged. Also, a method of making wood and wood product laminates using this new mat without any other adhesives, and the resultant laminates are disclosed.

Abstract: An on-line method of forming a multilayered coating on a sheet of fibrous or foam insulation, includes: applying a first coating layer of a first coating composition directly to a first major surface of the insulation sheet; heating an exposed major surface of the first coating layer to stabilize the coating composition at the exposed major surface of the first coating layer so that the first coating layer remains an essentially discrete layer when a second coating layer is applied to the exposed major surface of the first coating layer and to only partially cure the coating composition at the exposed major surface of the coating composition so that a second coating layer applied to the exposed major surface of the first coating layer will readily bond to the first coating layer; applying a second coating layer of a second coating composition directly to the exposed major surface of the first coating layer subsequent to heating the exposed major surface of the first coating layer; and heating the insulation s

Abstract: A chopper for chopping fibers or fiber strands having a back up roll and a blade roll containing blades that work against a peripheral surface of the back up roll and a method of using is disclosed. The chopper has a number of improved features for reducing the frequency of long fibers or long fiber strands and fuzz from getting into the chopped product. The chopper can have one or any combination of the improvements. The improvements include a strand guide located at least two feet up stream of the chopper, a first starting roll for starting a new strand that runs on a fluid bearing that can be adjusted to control the RPM of the first starting roll, a mount for a roll that runs against the peripheral surface of said back up roll, a strand guide insert for reducing fuzz generation and for preventing fuzz from getting into the product, and a deflector plate for catching and deflecting chopped strands thrown off the back up roll into a chopped strand product chute.

Abstract: Novel boron-free glass compositions are described which are particularly suited for making fine diameter glass fibers for HEPA electronic clean-room filtration media using flame-attenuation or rotary glass processing.

Abstract: An apparatus for receiving and automatically moving a moving strand of fibers from a starting position to any one of a plurality of predetermined positions in a multi-grooved separator roll is disclosed. This apparatus is particularly in processes of making continuous fiber products from molten material and replaces a manual operation that presented safety problems.

Abstract: A gypsum board/intumescent material ceiling board includes a gypsum board and a fire-resistive barrier. A first major surface of the gypsum board is an upper side for abutting framing and a second major surface of the gypsum board is an underside for facing a room interior. The fire-resistive barrier is a layer of intumescent coating material applied to and coextensive with one of the major surfaces of the gypsum board. The intumescent coating material contains expandable graphite and a corrosion inhibitor in sufficient quantities to provide a corrosion inhibiting layer on metal surfaces, such as the surfaces of metal fasteners, with which the intumescent coating material comes in contact. In addition, the intumescent coating material has a pH greater than 7.0 to reduce corrosive properties of the intumescent material and provide a chemical environment conducive to the forming of the corrosion inhibiting layer by the corrosion inhibitor.

Abstract: Fibrous sorbent media or pads are formed from non-woven mats of thermoplastic fibers, preferably polypropylene fibers, having a mean diameter between about 0.5 microns and about 25 microns. The mats have a weight between about 2 ounces/yd2 and about 25 ounces/yd2; a thickness of at least {fraction (1/20)} of an inch; an oil absorbency ratio of at least 5 to 1 or a water absorbency ratio of at least 5 to 1. The sorbent media have first and second major surfaces with abrasion resistant, liquid permeable, integral skins and fibrous cores. The liquid permeable skins of the media are formed by melting fibers at and immediately adjacent the major surfaces of the mats to form thermoplastic melt layers which are subsequently solidified into the skins on the major surfaces of the mats. For many applications, the thermoplastic fibers of the mats are point bonded together at spaced apart locations to increase the integrity of the mats.

Abstract: Cobalt alloys are disclosed for use in the fabrication of spinner discs for fiberizing molten glass into fibers in rotary fiberizing processes. The cobalt alloys fall within the following ranges, in percentage by weight, Co 22.0-54.0; Cr 30.0-34.0; Ni 9.0-31.0; Mo 0.0-7.0; C 0.45-0.65; Si 0.25-1.0; Mn 0.30-0.80; precious metals (PM) 0.0-2.0; and carbide forming metals (CFM) 0.0-1.3.

Abstract: A sound attenuating wall or ceiling assembly includes: a plurality of wall or ceiling boards; a series of parallel spaced apart, elongated framing members; and a series of elongated sound attenuating members extending along the length of the framing members, secured to the framing members and securing the boards to the framing members. Each of the sound attenuating members has a resilient cantilevered portion to which the boards are secured. The cantilevered portion of each sound attenuating member extends from the framing member to which the sound attenuating member is secured both outward away from the framing member and toward an adjacent framing member whereby the boards are resiliently secured to the framing members and spaced outwardly from the framing members to attenuate sound.

Abstract: A chopper for chopping fibers or fiber strands having a back up roll and a blade roll containing blades that work against a peripheral surface of the back up roll and a method of using is disclosed. The chopper has a number of improved features for reducing the frequency of long fibers or long fiber strands and fuzz from getting into the chopped product. The chopper can have one or any combination of the improvements. The improvements include a strand guide located at least two feet up stream of the chopper, a first starting roll for starting a new strand that runs on a fluid bearing that can be adjusted to control the RPM of the first starting roll, a mount for a roll that runs against the peripheral surface of said back up roll, a strand guide insert for reducing fuzz generation and for preventing fuzz from getting into the product, and a deflector plate for catching and deflecting chopped strands thrown off the back up roll into a chopped strand product chute.

Abstract: A biosoluble glass fiber filtration media includes a fibrous filtration layer of randomly oriented, entangled glass fibers which has an initial efficiency of 25% or greater as measured by ASHRAE 52.1 test method. The glass fibers forming the media have a biodissolution rate in excess of 150 ng/cm2/hr and a mean diameter between about 2.5×10−5 inches and about 11.0×10−5 inches. Typically, the filtration layer has a thickness ranging from about 0.12 inches to about 0.35 inches and a density ranging from about 3.0 g/ft2 to about 8.0 g/ft2. The filtration has an initial pressure drop of about 0.35 inches of water or less and a dirt holding capacity of about 1.5 g/ft2 or greater.

Abstract: The invention is directed to a sheath core monofilament which displays enhance abrasion resistance. The core is a liquid crystalline polyester and the sheath is a blend of 1-5 percent by weight polycarbonate and a polyester.

Abstract: A conveyor belt (5) for transport systems is described, containing an areal textile configuration based on predominantly synthetic yarns, characterized in that the conveyor belt has the form of an endless strip and the yarns extending in the running direction of the conveyor belt are elastic, the elastic yarns having a maximum tensile elongation of at least 60% and consisting at least 70 wt. %, referred to total yarn weight, of a thermoplastic, elastomer copolyether ester containing recurrent structural units of formulas I and II, —O—OC—Ar2—CO—O—R4—  (I) and —O—OC—Ar3—CO—O—R5—  (II), where Ar2 and Ar3 independently of each other represent bivalent aromatic radicals, R4 represents a bivalent aliphatic or cycloaliphatic radical, and R5 stands for the bivalent radical of a polyalkylene ether. Likewise described are uses of this conveyor belt, a method of transporting goods, and a transport system.