Did You Know...
...that Kleenex tissue was originally designed to be a gas mask filter? It was developed at the beginning of World War I to replace cotton, which was then in short supply as a surgical dressing.
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| Number | Title | Issue Date |
| RE39761 | Laminate wall structure A laminate wall structure which can be used as an exterior wall in manufactured housing and site built construction is made up of a low density layer having a density of from about one-half pound to three pounds per cubic foot, a second, reinforcing layer laminated ... | 08/07/2007 |
| 7196025 | Method and apparatus for forming fabrics and fabrics made by the method A method for forming a material having an individually stabilized ply includes providing a ply having a non-orthogonal orientation. A stabilizing agent is then applied to maintain the orientation of the ply. The stabilizing agent could alternately be applied before ... | 03/27/2007 |
| 7153792 | Flexible composites and applications including the flexible composites A flexible composite includes a ply having a non-orthogonal orientation. The flexible composite may be a component of a flexible assembly. The flexible assembly may be any number of fabric-based assemblies such as a radome cover of a radome, a belt for an industrial... | 12/26/2006 |
| 7060817 | Sulfonamide anions as catalysts for NCO oligomerization The present invention relates to the use of sulphonamide salts as catalysts for oligomerizing isocyanates and also to a process for NCO oligomerization using the catalysts of the invention. ... | 06/13/2006 |
| 6867155 | Non-abrasive composite doctor blade A multiplayer composite doctor blade has a side edge configured for application to the surface of a rotating roll in a paper making machine. The doctor blade has an inner core and intermediate layers preferably enclosed by outer layers. The inner core is predominant... | 03/15/2005 |
| 6841026 | Method for reducing coefficient of thermal expansion in chip attach packages A simple, inexpensive, drillable, reduced CTE laminate and circuitized structures comprising the reduced CTE laminate, is provided. One embodiment of the reduced CTE laminate comprises: from about 40% to 75%, preferably from about 55% to 65%, by weight resin; from a... | 01/11/2005 |
| 6825137 | Lightweight ballistic resistant rigid structural panel A lightweight ballistic resistant rigid structural panel especially for use in aircraft interiors is disclosed. The rigid structural panel is made up of a core layer including a plurality of sheets of flexible, high-tensile strength fabric interleaved with a plurali... | 11/30/2004 |
| 6737368 | Multiple threat penetration resistant articles The present invention relates to multiple threat penetration resistant articles. The articles include, in order, fabric layers, polymer impregnated fabric layers, and woven fabric layers. The articles can additionally include tightly woven fabric layers which define... | 05/18/2004 |
| 6610617 | Ballistic resistant article A flexible ballistic resistant article is disclosed that includes a plurality of layers of fabric having an areal density of 2 to 10 kg/m2, wherein at least two of the layers of fabric are loosely woven. The loosely woven fabric layers include ... | 08/26/2003 |
| 6583073 | Drying process for woven glass fabric intended for use as a reinforcing laminate in printed circuit boards A process for the drying of woven glass fabric to be used in a reinforcing laminate in sensitive electronic equipment is disclosed. The process adopts a drying technique of utilizing dielectric or radio frequency heating which results in a cleaner product... | 06/24/2003 |
| 6555488 | Three-dimensionally reinforced cellular matrix composite and method of making same A light-weight and impact-resistant composite material formed from a three-dimensional textile structure preform comprising at least three systems of yarns that define a plurality of interstices within the textile structure. A cellular matrix material imp... | 04/29/2003 |
| 6387830 | Method for reducing coefficient of thermal expansion in chip attach packages A simple, inexpensive, drillable, reduced CTE laminate and circuitized structures comprising the reduced CTE laminate, is provided. The reduced CTE laminate comprises: from about 40% to 75%, preferably from about 55% to 65%, by weight resin; from about 0.... | 05/14/2002 |
| 6297177 | Drumhead construction A drumhead lamination comprising upper and lower layers of synthetic plastic sheet materials and a layer of impregnated polyester or natural fabric sheet material sandwiched in between the systhetic plastic layers. A substance employed to impregnate the f... | 10/02/2001 |
| 6177368 | Blast resistant laminate composite container wall construction A blast resistant laminate composite container wall construction is provided for a bomb-resistant airline baggage container for withstanding gas-expansion explosives. A PVC substrate core (26) of sufficient thickness, at least about 0.5 inch, is used to p... | 01/23/2001 |
| 6136733 | Method for reducing coefficient of thermal expansion in chip attach packages A simple, inexpensive, drillable, reduced CTE laminate and circuitized structures comprising the reduced CTE laminate, is provided. The reduced CTE laminate comprises: from about 40% to 75%, preferably from about 55% to 65%, by weight resin; from about 0.... | 10/24/2000 |
| 6099946 | High pressure water jet protection A two-structure composite for protection from high velocity water jets is provided and includes one structure of tightly woven aramid yarns impregnated by a resin matrix and one structure of nonwoven, bulked, material.... | 08/08/2000 |
| 5912062 | Utilization of waste fibers in laminates The present invention provides compositions and processes wherein recycling of waste carpets and textiles is achieved by coating the individual yarn fibers with a low viscosity adhesive that is dispersed or dissolved in a suitable solvent to affect covera... | 06/15/1999 |
| 5789327 | Armor panel A ballistic-resistant article comprising a composite panel having a plurality of layers of ballistic-resistant cloth woven from high tensile-strength fibers laminated together by an elastomeric adhesive material having oriented polymer chains. The resulti... | 08/04/1998 |
| 5593767 | Laminate, a glass fiber woven fabric and a printed wiring board A laminate comprising glass fiber woven fabrics impregnated with thermo-setting resin and superposed one on another while heated and pressed and said glass fiber woven fabrics having warps and wefts which are of components different from each other and of... | 01/14/1997 |
| 5591509 | Ski containing sheetlike plates or tapes made of a fiber reinforced material The ski described is characterized by the use of a selected fiber reinforced material comprising a sheetlike textile material and a thermoset resin, the fiber content being 30-70% by weight and the fiber being not less than 30% by weight synthetic. This m... | 01/07/1997 |
| 5571609 | Polybutadiene and polyisoprene based thermosetting compositions and method of manufacture thereof An electrical substrate material is presented which comprises a thermosetting matrix which includes a polybutadiene or polyisoprene resin and an unsaturated butadiene or isoprene containing polymer in an amount of 25 to 50 vol. %; a woven glass fabric in ... | 11/05/1996 |
| 5523148 | Multilayer article comprising a toughened polycyanurate with embedded electrically conductive patterns A prepreg which is heat curable within a temperature range of between about 200° C. and 325° C. comprising a reinforcing material impregnated with a curable material said curable material comprising a blend of a fluorine-containing cyanate and a fluorin... | 06/04/1996 |
| 5462791 | Fiber-reinforced plastic material comprising stacked woven fabrics of differential weave in a plastic matrix There are disclosed fiber-reinforced plastic materials with a composite structure including at least two kinds of fibers as reinforcing materials, which have reciprocal thermal expansion and contraction properties, and a synthetic resin as a matrix. The f... | 10/31/1995 |
| 5446120 | Polyethersulfone oligomers and blends Polysulfone and polyethersulfone oligomers made by the condensation of crosslinking end caps, monomers, diols, and dihalogen moieties exhibit improved solvent resistance which is necessary for their use in aerospace applications. Blends of the oligomers a... | 08/29/1995 |
| 5429865 | Composite materials A composite material comprising a fabric of high-modulus fiber material and optionally a portion of other synthetic fiber material and a binder, the binder layers being essentially disposed only between fabric plies, the binder being a resol modified with... | 07/04/1995 |
| 5248550 | Encapsulation of thermoplastic particles for production of composites Gel coating of thermoplastic particles, such as polyimide particles, with a polyketone or polyvinyl alcohol gel, and applying the gel coated particles to reinforcement, e.g. carbon, fibers to form a pre-preg. Such gel coated thermoplastic particles can be... | 09/28/1993 |
| 5234752 | Wear-resistant laminated articles In a wear-resistant laminated article (e.g. a bearing, or a compressor rotor blade) made by heating an assembly of superimposed layers of fabric impregnated with a phenolic or other thermosetting resin, the fabric is made of non-asbestos yarn comprising a... | 08/10/1993 |
| 5217766 | Stabilized complex composite preforms A method for forming stabilized preforms for complex composite articles is disclosed using a solid meltable uncatalyzed thermosetting resin as the stabilizing agent. The resin is applied to each layer of the preform and heated to melt the resin and bond t... | 06/08/1993 |
| 5206066 | Melamine resin prepregs and melamine resin laminates based on modified melamine resins Melamine resin prepregs or melamine resin laminates which consist of a web-like fiber reinforcement which is impregnated with melamine resins which essentially comprise a) 40-85% by weight of at least partly etherified melamine resins, which are obtainabl... | 04/27/1993 |
| 5112924 | Bismaleimide compositions containing high glass transition temperature and soluble reactive oligomers and composites prepared therefrom Described are novel thermosetting maleimide compositions suitable for making cured resins, prepregs and tough thermoset composites. The thermosetting compositions comprise a multifunctional maleimide and a terminally unsaturated polyamide, polyimide, or p... | 05/12/1992 |
| 5032451 | Bisbenzocyclobutene/bisimide compositions A class of benzocyclobutene/bisimide copolymers having superior toughness are disclosed. The copolymers are derived from bisbenzocyclobutene monomers by one of structures ##STR1## in which R is selected from unsubstituted and non-electrophilic s... | 07/16/1991 |
| 4990397 | Unsaturated polyester resin compositions and electrical laminates made therefrom An unsaturated polyester composition is provided comprising an unsaturate polyester component, a cross-linking monomer and as a modifier of the resin a polyoxyalkylene alcohol at least partially esterified with a polymerizable unsaturated carboxylic acid.... | 02/05/1991 |
| 4973662 | Endcapping agent for polyimide, polyimide varnish, and intermediate material for fiber-reinforced composite material comprising same A compound represented by the following general formula [1]: ##STR1## wherein R3 and R4 are independently selected from hydrogen and alkyl groups having 1 to 4 carbon groups, is valuable as an endcapping agent for a polyimide. Namely... | 11/27/1990 |
| 4943474 | Unsaturated polyester resin compositions and electrical laminates made therefrom An unsaturated polyester composition is provided comprising an unsaturate polyester component, a cross-linking monomer and as a modifier of the resin a polyoxyalkylene alcohol at least partially esterified with a polymerizable unsaturated carboxylic acid.... | 07/24/1990 |
| 4895673 | Emulsions for electrodepositing polymeric alloys and copolymers Disclosed is an emulsion having a discontinuous phase which comprises at least two compounds of different structural formula selected from the group consisting of solvent-soluble polymers, oligomers, and monomers dissolved in an organic solvent, and a dis... | 01/23/1990 |
| 4869952 | Waterproof shelter fabric The waterproof shelter fabric of the invention is a 3-layer fabric, incorporating a first layer of lightweight fabric material, a second layer of polyurethane film and a third layer of Nylon tricot fabric material. Both the first and second layers, and th... | 09/26/1989 |
| 4867150 | Perforated elastomeric soft film and wound dressing made therewith The perforations in a film-faced wound dressing have been discovered to have edges which, though clearly defined, lack the ability to cut the neoepithelium of a healing wound, with the result that the film affords an unexpectedly high degree of comfort du... | 09/19/1989 |
| 4803115 | Glass fiber-reinforced electrical laminates and a continuous production method therefor There is provided an electrical laminate comprising a cured assemblage of a plurality of glass fiber type substrates impregnated with a curable resin composition containing (a) a halogenated bisphenol type unsaturated polyester resin and (b) an epoxy acry... | 02/07/1989 |
| 4778716 | Method of increasing the toughness of fiber-reinforced composites without loss of modulus Inclusion of minor amounts of predominately amorphous silica microfibers into thermosetting matrix resins allow manufacture of prepregs which produce toughened composites resistant to impact damage without the loss of modulus normally associated with toug... | 10/18/1988 |
| 4563385 | Hybrid glass cloth for printed circuit boards Woven glass fiber cloth for printed circuit substrates in which the warp is of plied yarn and the fill is of unplied or twisted yarn to facilitate more thorough polymeric resin impregnation and achieve improved dimensional stability.... | 01/07/1986 |
