Abstract: The present invention provides an edge band including a protective layer attached to a wood portion. The wood portion includes a first side and a second side. A first adhesive is disposed between the protective layer and the first side of the wood portion and a second adhesive is disposed on the second side of the wood portion and may be used to attach the edge band to an article. The protective layer can be removed from the band when desired, for example, following the application of a finishing material to the associated article.

Abstract: The present invention is directed to a method of producing a photoluminescent adhesive for use in manufacturing signs which emit light in the dark after being exposed to ambient light by using photoluminescent adhesives. The sign comprises a clear acrylic substrate, a photoluminescent adhesive placed over the substrate and a protective layer over the photoluminescent adhesive.

Abstract: A method is provided of resurfacing a substrate with a natural stone the substrate having a top surface and an edge, the method including placing a plurality of templating strips on the top surface to form a template defining an outside dimension, cutting out a top piece for resurfacing the top surface based on the outside dimension of the template, cutting out an edge band for resurfacing the edge of the substrate, bonding the edge band and the top piece together to form a replacement top and adhesively joining the replacement top to the substrate. A plurality of templating jigs may be used for forming a template. Pieces of natural stone may have respective bevel cuts made in their respective edges for adjoining with other pieces to form a replacement top of natural stone. Inside edges may be reinforced with a fiberglass cloth coated with a polyester resin.

Abstract: A method and means for protecting a windshield from further damage from existing cracks or breaks due to stone or other hard object impacts on windshields. An optically clear impact resistant, high tensile strength barrier film is placed directly over the crack or break in the windshield. The barrier is preferably a clear polymeric film or clear multiples of film, but could be opaque, rubber, plastic or metal. The barrier is placed on the glass surface and in contact with the center of the crack or break. The size of the barrier is selected to eliminate the higher incidence of continued damage to the crack or break to the peripheral area. The barrier should be combined with a clear pressure backed adhesive with UV sunlight blocking ingredients to reduce degeneration. A kit can be assembled with the elements needed to place the barrier on a windshield. The barrier can also be applied in fluid form, which achieves a film.

Abstract: A method of making pneumatic tyres for vehicle wheels in which during building of the tyre on a toroidal support at least one step of a partial vulcanisation is introduced, the step enabling the overall production time to be reduced by lowering the overall time of the final moulding and vulcanisation step, while maintaining the features of the bead and the carcass ply/plies linked thereto as stated in the design specifications. More particularly, by building at least one carcass structure on the toroidal support and submitting the latter to a first vulcanisation step while exerting a pressure from the outside to the inside of the structure itself, an at least partly vulcanised carcass structure is obtained that is stable in its geometry and suitable for completing the tyre building. Subsequently, a second vulcanisation step accompanied by moulding of the tread band and the sidewalls allows a finished tyre in a more reduced overall period of time to be obtained.

Abstract: The present invention is directed to a runflat tire having at least one of its components comprising the radial carcass ply, the underlay, the overlay, the bead inserts or the chippers, reinforced with polyester cords having a polyepoxide disposed on its surface. The polyester cord is formed by first obtaining a cord through twisting together a plurality of polyester yarns, secondly treating the cord with an aqueous dispersion comprising a polyepoxide, and thirdly treating the cord with an aqueous RFL dispersion comprising a resorcinol-formaldehyde resin, a styrene-butadiene copolymer latex, a vinylpyridine-styrene-butadiene terpolymer latex, and a blocked isocyanate.

Abstract: A method and apparatus for feeding a cover (10, 11, 12, 13) in the production of perfect-bound or saddle-stitched books, brochures, magazines or similar printed products (14, 15) featuring an inner part (2) that consists of a collection of folded sections, layers and/or individual sheets and a cover (10, 11, 12, 13) that is placed around the inner part (2) and connected thereto. A roll (3) comprising a wound-up cover web (4) is supplied, the cover web (4) is unwound and a cover sheet (10, 11, 12, 13) with the desired format height is separated from the cover web (4, 8) and fed to the inner part (2) in order to be placed around the inner part and connected thereto. This allows a reliable and flawless feed of the covers to the inner parts, and the operating effort for the cover feed is reduced.

Abstract: A label applicator system provides for high speed, accurate label transfer from a web to items moving on an item transport along a path relative to the system. The items, such as bottles, have a contoured surface. The applicator includes a supply reel for supplying labels on a web and a take-up for taking up the web after transfer of the label. A drive roller moves the web through the applicator system. The system includes a web positioning assembly and a movable label applicator head. A contour sensor senses the bottle contour and develops a profile for the head to follow to apply the labels to the bottles. The supply, take-up and the drive are operably engaged with one another to maintain a relatively constant tension in the web.

Abstract: An apparatus of manufacturing a gummed member includes a supply spool, a support for conveying a continuous sheet of base member from the supply spool, a funnel for depositing adhesive material on the continuous sheet of base member to form a continuous layer-thereon, cooling means, and means for cutting the continuous sheet of base member into base members having a releasable sheet formed thereon. A method of binding papers of a document includes cutting a unit out of a base member formed thereon with a releasable sheet having a gummed member, removing the gummed member, adhering the gummed member to a spine of a hard cover, folding a cover to initially position papers therein, upright holding the cover and inserting same into a binding device for heating the gummed member to bind the papers in the cover, and cooling.

Abstract: An apparatus for printing and applying a patch which has a face with adhesive, to an article, the apparatus including a printing module and a patch applying module, the printing module including a transport mechanism for transporting the patch when removeably adhered to a backing, through a printing station where a print head is provided for effecting printing on the patch, and the printing module including a patch removing mechanism for removing the patch from the backing after printing and for feeding the patch through a printing module opening, to the patch applying module which is located at or adjacent to a face of the printing module, for applying to the article, and characterised in that the printing module has first and second faces each with an opening through which the printed patch may be led by the patch removing mechanism, and the patch applying module is locatable at at least either of the first face or the second face of the printing module depending upon the relative position of the article to

Abstract: An optical subassembly is described comprising a stack of at least two optical films bonded with an adhesive having a relatively high initial peel strength. The peel strength is capable of being reduced upon exposure to radiant energy. Method of making an optical subassembly and display are also described. The backlight of the display may provide the radiant energy that reduces the peel strength of the adhesive.

Abstract: A method is provided for attaching together a pair of telescoped tubes. Prior to telescoping the tubes together, an adhesive storage cavity is formed on the surface of at least one of the tubes, and the adhesive cavity is filled with adhesive, so that adhesive within the adhesive cavity faces toward the surface of the other tube when the tubes are telescoped together. After the tubes are telescoped together, with the inner tube inside the outer tube, the adhesive within the storage cavity is cured so that the inner and outer tubes are adhesively attached together. During the curing of the adhesive, the adhesive will flow or expand out of the storage cavity to coat a portion of the opposing surfaces of the inner and outer tube.

Abstract: A method of forming a fuel cell may include treating a surface of a membrane electrode assembly (MEA) of the fuel cell, positioning a preformed adhesive insert on the treated surface, and bonding an electrically conductive member to the treated surface with the adhesive. Treating the surface may include a pre-treatment to increase adhesive properties thereof. Positioning the adhesive insert may include locating the adhesive insert on a surface of the membrane electrolyte adjacent to an edge of the electrode.

Abstract: In performing plasma etching with the aim to form a gate electrode on a large-diameter substrate, it is difficult according to prior art methods to ensure the in-plane uniformity of CD shift of the gate electrode. The present invention solves the problem by supplying processing gases having different flow rates and compositions respectively through openings formed at positions opposing to the substrate and at the upper corner or side wall of the processing chamber.

Abstract: An apparatus is invented for forming a tire tread on the surface of a prototype tire that is pre-fabricated during the tire manufacturing processes. The apparatus for forming the tire comprises six forming devices disposed above the circular rotary base for securing the prototype tire, a transporting compression ring disposed around the rotary base for supplying and compressing an iron core belt onto the prototype tire of the forming device, and a first extruder, a second extruder, a third extruder, and a fourth extruder for extruding a ribbon-shaped rubber band to form a tire tread on the surface of the prototype tire. Accordingly, by constructing a plurality of extruders around the circular rotary base, the installation space can be smaller than the conventional prototype tire forming apparatus, the device fabricating cost can be reduced, and various shaped tires can be fabricated.

Abstract: The present invention aims to provide a label affixing jig which has an A member formed so as to allow a container to pass therethrough, a B member formed so as to allow the container to pass therethrough, a C member, and a D member, wherein the A member is configured to follow expansion and contraction of the B member to closely contact with the adhesive surface of a cylindrically curled stretch label and hold the stretch label on the A member; the B member is configured to contract and expand the A member in the radial direction of the cylindrically curled stretch label; and the C member is a holder of the container; and the D member is a pedestal for the C member and is equipped with a height adjustment unit configured to adjust the height of the C member.

Abstract: A hand held masking machine is described having one or more of the following features: a structurally designed metal frame, a directional handle with thumb grip, a cutting blade with a slotted adjusting means, a sheet reel including a wire spring with four pressure points for various core sizes, and a tape reel with a tapered face and flexible ribs that holds a variety of tape widths.

Abstract: Presses with heaters, such as mug presses, comprise a thermal sensor which is separated from a heater element by at least one layer of insulation. The thermal sensor is advantageously in electrical communication with the heating element to shut off the heating element when a predetermined temperature is reached. By spacing the thermal sensor from the actual heater, the sensor is insulated from the heater so that the temperature at the sensor will be less than the certain pre-determined temperature at the heater during heating. Accurate control of the heating of the mugs and substrate is achieved in a manner which eliminates the need for separately controlling and/or monitoring the time which the heat is applied.

Abstract: A safety device is provided that includes a roller shutter and a fire alarm. A communications connection is provided between the fire alarm and the roller shutter. When the fire alarm detects the presence of a fire, a corresponding signal is transmitted to the roller shutter via the communications connection. The roller shutter is then opened.

Abstract: A curtain device with an upper and lower section thereof, wherein a manual reel and an automatic reel apparatuses are mounted on an upper guideway for controlling a suspension pole and a curtain body, and a top end of the curtain body is fixed by the suspension pole, thereby the rising and descending of the suspension pole is controlled by the manual reel apparatus for forming an interval between the suspension pole and the upper guideway so as to receive the sunshine, and the shading area is controlled by the operating of the curtain body of the user.

Abstract: A reinforcement assembly for a panel garage door, the assembly having multiple sliding locking members that are repositioned from a neutral or disengaged position on panel stiles to an active or engaged position bridging the hinge connecting adjacent stiles, such that adjacent panels are precluded from pivoting. Preferably, header and footer engagement assemblies are also provided to secure the door to the header and floor.

Abstract: A flexible guide (1) for a mosquito net (100) of a type which is fixable to a window opening, comprising a plurality of rigid adjacent links (2a, 2b, 200), in which each link (2a, 2b 200) exhibits a pair of opposite flanks (5a, 5b, 205) which between them receive the mosquito net (100), and a connecting portion (6, 206) arranged transversally and fixed to the flanks (5a, 5b), each link (2a, 2b, 200) being provided with a seating (4, 204) for receiving a flexible strap element (3, 230) in order to form, with adjacently-situated links (2a, 2b), a single chain.

Abstract: Method for producing a fibrous web exclusively from cellulose fibers of natural origin, comprising the following procedural steps: forming an essentially uniformly thick, dry fiber layer from loose fibers having a low moisture content, pressing and embossing the fiber layer to obtain a fibrous web and forming an embossed pattern, moistening the fibrous web with a water-latex mixture having a high water concentration (75 to 99% by weight of water) and precipitating the latex in a drying process while the fibers are bonded inside and outside the fiber bond zones.

Abstract: The present invention relates to a papermaking machine and papermaking method that make paper web by removing moisture while making a paper stock layer travel, and the object of the invention is to dehydrate the paper stock layer more efficiently. A papermaking machine for making continuous paper web by holding a paper stock suspension 1a jetted from a head box 2 into the shape of a layer, and removing moisture while making this paper stock layer 1 travel. The papermaking machine is provided with steam type heating means 6 and adjustment means 11. The steam type heating means 6 is provided in a moisture removing part as heating means for heating the paper stock layer 1 to accelerate the moisture removal, and supplies steam to the paper stock layer 1 and heats the paper stock layer 1 by condensation of the steam.

Abstract: A double layer papermakers' fabric that is particularly suitable for forming or through-air drying (TAD) of high bulk tissue and towel product is provided. The fabric includes a single warp yarn system interwoven with three weft yarn systems such that: a first of the weft yarn systems is located on the paper side (PS) surface of the fabric; a second of the weft yarn systems is located on the machine side (MS) surface of the fabric; and the third weft yarn system is located intermediate between the first and second weft yarn systems. The yarns of the first and second weft yarn systems are interwoven with the warp yarn system such that they are vertically stacked with respect to one another in the fabric.

Abstract: A pouring method and a device in a vacuum sealed process to produce a thin-wall cast by using a mold framing for the a vacuum sealed process, and a as-cast product using the pouring method are provided.

Abstract: In blowing gas-curing casting sand, which is accommodated in a receiver of a blow head, into a cavity in molding dies and thereby packing it into the cavity, prior to the blowing and packing of the casting sand into the cavity, the casting sand in the receiver is stirred by a stirrer until the stirring resistance of the stirrer enters a predetermined range (a range corresponding to an optimum bulk density range of casting sand within which casting sand can efficiently blow out through blow nozzles).

Abstract: A method of manufacturing the caliper body of a vehicular disc brake by the gravity casting method. The caliper body is used for the vehicular disc brake wherein a pair of frictional pads are disposed opposite to each other with a disc rotor held therebetween. The caliper body has a cylinder disposed on one side of the disc rotor, a reaction pawl disposed on the other side of disc rotor, and a bridge for coupling the cylinder and the reaction pawl on the outer peripheral side of the disc rotor. A sprue is provided in the bottom portion of the cylinder, and the caliper body is cast by a cavity with the side of molding the bottom portion of the cylinder disposed in the upper part of and in the vertical direction of the cavity and with the side of molding the reaction pawl disposed in the lower part of and in the vertical direction thereof.

Abstract: In a casting mold making system for blowing and packing casting sand accommodated in a receiver of a blow head into a cavity in molding dies by feeding pressurized gas into the receiver, the pressure of pressurized gas to be fed into the receiver is discontinuously raised at least once in the course of feeding of pressurized gas into the receiver.

Abstract: An oscillating device for continuous casting molds (1) for casting molten metal particularly, molten steel material includes a plurality of springs (5) or spring assemblies (5a) extending between a stationary mold frame (2) and connection or fixing points (4) for supporting a continuous casting mold (1) and are set in control oscillations such as, e.g., resonance oscillations by drive pairs, wherein by using of springs (5), spring assemblies (5a) or spring bundles (5b) formed of fiber composites (6), damaging corrosion by chemicals during continuous casting is prevented.

Abstract: The method allows the continuous, very regular production of glass-coated metal wire on the basis of the TAYLOR-ULITOVSKY principle. The feeding of the molten bath (12) by the guide tube (45) is made by means of a regulated dispensing system (40) allowing the very regular, precise adding of metal particles at a rate corresponding to the rate of wire drawing without disturbing the molten metal bath (14). The system is advantageously completed with a vacuum system (38), a pyrometer (30), a magnet (47), an automatic travel system (25) for the glass tube (20), a spooling system (11) and a water spray (34). Application to the manufacture of metal wire and in particular to glass-coated ferromagnetic wire.

Abstract: A method of continuously casting thin strip where, at the start of a casting campaign, the side dams are pressed against the end surfaces of the casting rolls with a pressure of less than 3.0 kg/cm2 but more than 1.25 kg/cm2 and after the target casting pool height is reached, reducing the pressure exerted by the side dams against the end surfaces of the casting rolls to below 1.25 kg/cm=hu 2 =l to reduce wear of the side dams against the end surfaces of the casting rolls.

Abstract: A casting belt for using in a single-belt or twin-belt casting apparatus is disclosed. The casting belt is made of aluminum alloy such as an alloy from the AA5XXX and AA6XXX systems, preferably having a thickness in the range of 1 to 2 mm. The aluminum casting belt of the invention is suitable for casting non-ferrous and light metals such as aluminum, magnesium, copper, zinc and their alloys, especially aluminum alloys such as Al—Mg, Al—Mg—Si, Al—Fe—Si and Al—Fe—Mn—Si alloy systems. A belt casting machine and process using the aluminum casting belt of the invention are also disclosed.

Abstract: A vehicle air-conditioning apparatus in which supercritical refrigerant passing through a refrigerant heat releasing passage of a heat releasing device exchanges heat with refrigerant cooling air introduced from an air introduction surface of a heat releasing device to be cooled, and the cooled refrigerant exchanges heat with air to be introduced into a passenger compartment by an evaporator. Since at least a part of discharge air discharged from an inside of a passenger compartment is introduced from an air introduction surface of the heat releasing device as a ventilation loss utilizing air, ventilation loss utilizing air can be used as a part of refrigerant cooling air. The ventilation loss utilizing air is introduced to the downstream side area of the refrigerant heat releasing passage in an air introduction surface of the heat releasing device.

Abstract: A combined fluid-air evaporator having at least two separate duct systems is described, through which separate material flows may be conducted, at least one of the two duct systems having a free surface which may be brought into thermal contact with an air flow, and the at least two duct systems being at least partially in thermal contact with one another. Furthermore, a ventilation arrangement for a building is described using the combined fluid-air evaporator, in which a used air flow directed out of the building, which is in thermal contact with an outside air flow via an air-air heat exchanger, comes into thermal contact with the combined fluid-air evaporator, through which a refrigerant and an exothermic fluid pass, the refrigerant circulating in the loop of a heat pump, whose condenser is connected downstream in the flow direction from the air-air heat exchanger in the heated outside air flow, and the exothermic fluid circulates in the loop of a heat accumulator system.

Abstract: A heat exchange easy mount system is presented. A number of embodiments are presented. The easy mount system includes one or more tabs or appendages extending from the heat exchange unit and locking into holes or cavities in surfaces of an electronic system housing. Another embodiment of the easy mount system includes one or more guide pins extending from the heat exchange unit and into holes or cavities in surfaces of an electronic system housing for additional stability. Yet another embodiment of the easy mount system includes one or more shock absorbers disposed on the tabs or guide pins for reducing shocks associated with movement of the electronic system; reducing noise from the heat exchange unit in operation; and reducing the transmission of vibrations from heat exchange unit in operation to the system housing. Another embodiment includes a tool for easy disengagement of the heat exchange unit from the system housing.

Abstract: According to one embodiment of the invention, a cooling system for heat-generating structures comprises a plurality of heat exchangers, a structure which directs flow of the fluid coolant substantially in the form of a liquid to each of the plurality of heat exchangers, and a structure which reduces a pressure of the fluid coolant to a pressure at which the fluid coolant has a boiling temperature less than a temperature of the heat-generating structures. Each of the plurality of heat exchangers is in thermal communication with at least one of the heat-generating structures and has an inlet and an outlet. Thermal energy from the heat-generating structure causes the fluid coolant substantially in the form of a liquid to boil and vaporize in each of the plurality of heat exchangers so that the fluid coolant absorbs thermal energy from the heat-generating structure as the fluid coolant changes state.

Abstract: A heat exchanger including at least a first manifold and a second manifold connected by a bundle of horizontal tubes. An air flow circulates to be cooled by a cooling air flow. The bundle includes at least: a first portion including a first series of tubes with turbulators of passage section corresponding to the section; a second portion including a first series of tubes with no turbulators of passage section and a second series of tubes with turbulators of passage section corresponding to the section; and a distribution box of internal air flow to be cooled including a connection mechanism between the first portion and the second portion.

Abstract: A water-cooling heat dissipation device includes a water block and a pump communicated with the water block and having cooling liquid therein. The water-cooling includes a casing and a metal panel, where the casing includes a hollow and closed cavity, a water inlet and a water outlet outside the casing and communicated with the cavity. The metal panel includes a plurality of continuously-bent heat-dissipating plates, a heat-dissipating channel defined between two adjacent heat-dissipating plates, one end of the heat-dissipating plate is attached to bottom of the cavity of the casing. Therefore, the heat-dissipating plate has more contact area with the cooling liquid in a limited space to increase heat exchange effect.

Abstract: The invention relates to a soldered cooler block, especially for a charge air cooler/coolant cooler, which is constructed in a packet-type manner. Cooling channels (2) for a liquid coolant are arranged in said cooler block in a crossways manner in first layers and gas channels (1) for a gas which is to be cooled are arranged in a crossways manner in second layers. The cooling channels (2) are respectively formed by two wall areas (3) which are arranged at a distance and by intermediate strips and connection strips (4.5) comprising groove profiles.

Abstract: A plurality of angle portions 2c of the fins on an upstream side and those on a downstream side of an air flow are provided so as to be substantially symmetrical with each other. Due to this, bending forces are continuously exerted on a thin plate-like fin material in a direction where the bending deformation of the fin material is cancelled, during the fin forming process. Accordingly, when the angle portions 2c are formed it can be prevented in advance that the fin material 11 is deformed in a state where the repeated deformations of the fin material 11 are accumulated in the same direction.

Abstract: A heat exchanger including a tube unit in which a plurality of tubes (2) which are disposed in a stacked state, a one side header tank part (4) which is provided at one end side of the tube unit and in which a returning tank chamber (12) is formed, an other side header tank part (5) which is provided at other end side of the tube unit and in which an inlet tank chamber (14) and an outlet tank chamber (15) are formed, an inlet pipe connecting part (18) and an outlet pipe connecting part (19) which are provided on the other side header tank part (5), inclined sections (16) and (17) configured to incline to a longitudinal direction of the tubes (2) being provided at two locations on the other side header tank part (5), the inlet pipe connecting part (18) and the outlet pipe connecting part (19) being provided on the inclined sections (16) and (17), respectively.

Abstract: The present invention relates to a heat transfer tube with spiral groove, comprising a stainless steel tube body with inward convex spiral groove on surface, wherein the stainless steel tube body possesses unequal height and width in the cross sectional view. In the EGR (Exhaust Gas Recirculation) cooling system for automotive engine, such kind of spiral groove tube with the unequal height and width in the cross-section acting as the heat transfer tube for the cooler make the cooler gain higher heat transfer effect, and it is hard to make dirt deposited inside or outside the tube, which greatly improves the emissions performance for automotive engine, and satisfies higher requirement of environmental protection.

Abstract: An air-conditioning system preventing the vented air temperature of a rear seat evaporator from not being able to be adjusted, wherein an electronic control system judges that the surface of the rear seat evaporator is frosting up when a target blowing rate of the rear seat blower is lower than a predetermined value, a detection temperature of an evaporator vented air temperature sensor is lower than TEa, and a detection temperature of the outside air temperature sensor is lower than TAMa; TEO is raised at this time, so an electric motor of an electric compressor is stopped; refrigerant no longer flows into the rear seat evaporator for this reason and the surface of the rear seat evaporator rises in temperature, so the rear seat evaporator can be defrosted; and even if the surface of the rear seat evaporator frosts, the rear seat evaporator 8 can be defrosted, so the vented air temperature of the rear seat evaporator can be prevented from not being able to be adjusted.

Abstract: An isolating tube is disclosed having a mechanically load-bearing plastic tube composed of a fiber-reinforced polymer for use in a cooling element which can be loaded with high voltage, during whose operation the isolating tube forms an electrical isolation gap and in the tube interior carries an agent which flows as a liquid and/or vapor. The isolating tube has a diffusion barrier which is held coaxially by the plastic tube. Methods for production of the isolating tube are disclosed.

Abstract: A system for conducting earth borehole operations comprising a first support; a mast attached to the first support, a top drive carried by the mast and longitudinally movable therealong, a second support, a skid carried by the second support, a CT injector carried by the skid, the skid being movable from the first support to the second support and a reel of CT for supplying CT to the CT injector.

Abstract: A reinforced resilient wiper element, for use in connection with internal pipe wipers, having peripheral wiping edges, a central bore and a rigid area surrounding such central bore. The rigid area surrounding the central bore prevents compression of the resilient wiper element in the vicinity of the central bore, thereby reducing or eliminating structural failure of the wiper element.

Abstract: A method for acquiring a sample of a virgin fluid from a subsurface formation penetrated by a wellbore surrounded by a layer of contaminated fluid is disclosed. The method includes abutting a first packer against a wall of the wellbore, and extending at least a portion of a second packer beyond the first packer, wherein the second packer is at least partially disposed in the first packer. An inlet to a first flowline is at least partially defined by the first packer, and an inlet to a second flowline is defined by the second packer. The method further includes drawing one of virgin fluid, contaminated fluid and combinations thereof into the first flowline; and drawing virgin fluid into the second flowline.

Abstract: Plastic beads, including polyamides and polystyrene beads crosslinked with divinylbenzene, having a curable resin coating are highly useful for sand control and/or hydraulic fracturing of subterranean. The curable resin coated plastic beads preferably have an apparent specific gravity less than about 1.5.

Abstract: Lightweight polyamide particulates may be used in treatment of subterranean formations, including hydraulic fracturing and sand control methods, such as gravel packing. The polyamide particulates typically have an apparent specific gravity (ASG) between from about 1.05 to about 2.0 and are stable at temperatures up to 500° C. The polyamide particulates may be used in combination with a filler which further serves to increase the strength and temperature stability of the resulting composite. Fracture conductivity may be increased by the placement of the low density polyamide particulates as a partial monolayer.