Abstract: A gas adsorptive member is disposed in a space communicating with film deposition chambers, and deposition films are deposited while continuously feeding gas components released from this member, thereby enabling the high quality and uniform deposition films to be formed on the substrate with good reproducibility.

Abstract: A substrate cassette contains two physically spaced and parallel reels. A relatively long web of flexible substrate material is wound about one reel and the exposed end of the web is connected to the other reel, to thus expose a relatively short length of the substrate material at a deposition-plane that lies between the two reels. A first idler roller is associated with the first reel, a second idler roller is associated with the second reel, and the web is guided by the two idler rollers as the web moves between the two reels. The two idler rollers are mounted at fixed positions in order to accurately establish a fixed-position deposition-plane. The substrate cassette is placed within one or more vacuum deposition chambers, the web is advanced between the two reels, and one or more semiconductor layers are deposited on substantially the entire length of the web. A protective layer is provided as part of the web in order to protect the semiconductor layer(s) when the web is wound unto a take-up reel.

Abstract: Application of radiation curable coatings to a flexible vinyl web, which is usually printed with a decorative pattern. This printed vinyl may be laminated to a backing for support and is often embossed. The actinically irradiated coated vinyl surface has improved stain resistance and is resistant to chemical attack by common as well as aggressive household cleaning solvents such as pine oil cleaners and nail polish remover. The coating is essentially free of hazardous volatile organic compounds and does not pose a toxicological threat to humans nor does it contaminate the atmosphere. These surface coated, actinically crosslinked vinyl laminates can be used in the manufacture of wallcoverings, automotive interiors, upholstery, tablecloths and other such applications especially where heat sensitive plastics are employed.

Abstract: A substrate cassette contains two physically spaced and parallel reels. A relatively long web of flexible substrate material is wound about one reel and the exposed end of the web is connected to the other reel, to thus expose a relatively short length of the substrate material at a deposition-plane that lies between the two reels. A first idler roller is associated with the first reel, a second idler roller is associated with the second reel, and the web is guided by the two idler rollers as the web moves between the two reels. The two idler rollers are mounted at fixed positions in order to accurately establish a fixed-position deposition-plane. The substrate cassette is placed within one or more vacuum deposition chambers, the web is advanced between the two reels, and one or more semiconductor layers are deposited on substantially the entire length of the web. A protective layer is provided as part of the web in order to protect the semiconductor layer(s) when the web is wound unto a take-up reel.

Abstract: A method of manufacture for an adhesive-based system to removably stick relatively flat articles on large area surfaces. A cured pressure-sensitive adhesive is coated on both sides of a central flat, flexible support scrim in a zoned thickness pattern which includes sufficient, continuous thickness such that the system is well suited to the removable installation of many types of articles having rough surface textures including, but not limited to, floor coverings such as woven and double-backed carpets having backs of a relatively rough texture and unitary backed carpet having a rough latex or polymeric coating and no applied secondary scrim. The adhesive is cured in situ but remains pressure sensitive.

Abstract: A coating is applied to reinforcing fibers arranged into a tow by coaxially aligning the tow with an adjacent separation layer and winding or wrapping the tow and separation layer onto a support structure in an interleaved manner so that the separation layer separates a wrap of the tow from an adjacent wrap of the tow. A coating can then be uniformly applied to the reinforcing fibers without defects caused by fiber tow to fiber tow contact. The separation layer can be a carbon fiber veil.

Abstract: A fiber having a surface with a relatively low coefficient of friction portion and a relatively high coefficient of friction portion. The fiber may be produced by slitting a film/sheet which has been coextruded, laminated and/or coated, or by partially coating a base fiber. Fabrics made from such fibers exhibit increased structural integrity.

Abstract: Paint or varnish is applied to the exterior of elongate elements such as pencils, by passing the pencils(3) through a receptacle(12) containing the paint or varnish(13), causing the pencils(3) to leave the receptacle(12) through a washer(17) which permits the pencils to leave the receptacle with a coating of paint or varnish on the exterior thereof, and subsequently passing the pencils through a light box(23) adapted to apply light to each point on the exterior of each pencil(3), the paint or varnish(13) comprising a resin which has the property that curing of the resin is initiated in response to the application of the light.

Abstract: A moving strand is provided and a size is applied to the strand. A collet is rotated to wind the strand and build a package. The strand is reciprocated with a strand reciprocator to lay the strand in a pattern on the package surface as the package rotates. The strand reciprocator is lubricated with a lubricant which is compatible with the size. There is also provided an apparatus for winding a fiber strand to build a cylindrical strand package having a radially outer surface. The apparatus includes a rotatable collet for receiving the strand to build a package. A strand reciprocator is mounted to guide the strand from edge to edge of the package and to lay the strand in a helical pattern on the package surface as the package rotates. A lubricator for atomizing a lubricant creates a fog of small airborne lubrication particles which are compatible with the size.

Abstract: A method for depositing at least two components having dissimilar compositions on a cylindrical surface is disclosed wherein the method comprises the steps of:(a) rotating the cylindrical surface about its axis;(b) locating a mixing head a short distance from the cylindrical surface, said mixing head being connected to separate supply means for each of said components via flow controlling means;(c) opening a first flow controlling means thereby supplying a first component to the mixing head;(d) moving the mixing head in the axial direction along the cylindrical surface while depositing the first component from the mixing head onto the cylindrical surface;(e) opening a second flow controlling means to the extent necessary to supply a second component to the mixing head at a flow rate lower than that at which the first component is supplied;(f) gradually decreasing the flow rate of the first component while gradually increasing the flow rate of the second component until the flow of the first component is termi

Abstract: A shoe press belt for the shoe press of a paper making machine includes first and second resin layers and a base layer. Resin is coated and cured on the polished surface of a cylindrical mandrel to form the first resin layer endlessly. An inner layer of the base layer is formed by spirally winding a relatively narrower belt shaped mesh with warp threads running in the major direction of the belt and weft threads running perpendicular thereto, with the weft threads against the outer surface of the first resin layer, and without overlapping the end edges of the belt-shaped mesh. An outer layer of the base layer is formed by inserting the mandrel, with the first resin layer and the belt-shaped mesh layer applied, into a tubular mesh, and pulling the ends of the tubular mesh apart, so as to reduce its diameter and press it radially against the belt-shaped mesh layer.

Abstract: A treatment for reducing friction of seat belts which is characterized by containing therein a polyether polyester having an average molecular weight of 2000-15000 which is obtained from a polyether diol and an aliphatic carboxylic acid, and preferably further containing a silicone compound. This treatment can be applied to either seat belt yarns in the yarn-making step or to seat belt webbing. The resulting seat belt is superior in slip properties and retains them even after wear. It is also superior in retractiablity and wear resistance (durability).

Abstract: Supplying gases towards the web as it separates from the drum in a plasma-enhanced chemical vapor deposition system reduces the sticking of the web to the drum, and thus prevents power supply dropouts. The gas supplied can form into a plasma that helps dissipate the static charge which builds onto the web as it rolls off of the drum. By reducing the arcing and power supply dropouts, the quality of the deposited layer formed in a deposition zone can be improved.

Abstract: A composite part consisting of a metallic matrix and reinforcing fibers is fabricated by the simultaneous winding of the fiber and plasma spraying of the matrix onto a rotating mandrel, wherein an axi-symmetric part is produced with multiple layers of the fibers aligned in the circumferential direction. Single or multiple fiber strands are wound onto a mandrel and simultaneously sprayed with the heated powder matrix material using a thermal spray process. Rotation and translation of the mandrel produces an axi-symmetric composite part. The content of the fiber material in the plasma sprayed matrix is typically up to 40% by volume. The light-weight composite part is produced in a single processing step. The part may be used either directly, or as an insert in other components with or without further densification.

Abstract: A process for preparing a continuous optical compensatory sheet has the continuous steps of: coating a liquid of a resin for forming an orientation layer in a solvent on a surface of a moving continuous transparent film; drying the coated layer to form a transparent resin layer; subjecting the transparent resin layer to rubbing treatment to give an orientation layer; coating a coating liquid of a discotic compound in a solvent on the orientation layer to form a coated layer; drying the coated layer; heating the coated layer to form a discotic nematic phase, whereby a layer of discotic compound is formed; and winding up the transparent film.

Abstract: A bitumen-based waterproofing membrane is provided with an improved edge for sealing with a contiguous membrane to provide a membrane system with improved waterproofing characteristics. A bitumen-based reinforced membrane sheet is coated with granular material to protect the membrane sheet from ultraviolet rays. However, a section of the membrane sheet is first covered with a piece of protective tape which prevents any granular material from being deposited on the lateral section of exposed bitumen beneath the tape. The membrane sheets are then cut immediately prior to the tape or at the edge of the granular coating and then rolled up. Accordingly, the lateral section of bitumen which is covered by the protective tape is on the innermost part of the rolled-up membrane sheet. During installation, the tape is removed and the exposed bitumen or selvage section is disposed below an adjacent or contiguous membrane. Heat is then applied for an easy and effective seal between two adjacent membrane sheets.

Abstract: A solid lubricant application procedure is combined in-line with a steel strip processing method which comprises processing steps upstream and downstream of the lubricant application procedure. The latter comprises applying the lubricant material in molten form or as a solution and may include temperature adjusting steps both upstream and downstream of the lubricant material-applying step. The space for incorporating the lubricant application procedure into the steel strip processing line is limited. The strip speed in the lubricant application procedure is synchronized with the strip speed normally attained in the steel strip processing method in the absence of an in-line lubricant application procedure. The steps of the lubricant application procedure are constrained to accommodate the space limits and strip speed synchronization requirement imposed on the lubricant application procedure when it is combined in-line with the steel strip processing method.

Abstract: The invention encompasses the pattern coating of a thick layer of adhesive on a single substrate. The adhesive strips may be continuous or discontinuous on the single substrate. In one preferred embodiment of the invention, the substrate is a release liner and the adhesive is a hot melt, thereby not requiring the use of an extruder in the application of the adhesive onto the substrate. When it is desired to produce a non-foamed product, the web is chilled on a chilled drum. Elimination of this chilling step, results in the formation of a foamed tape product, due to the evaporation of the moisture which is typically contained within the silicone-coated paper web. The product is a thick (10-100 mils), free (no carrier) film of adhesive made to the desired width (3/8" to approximately 6") of a high cohesive strength adhesive, with good temperature resistance (>196.degree. F.), with low bubble content (appears clear), wound into rolls containing from 100-800 feet or greater in length.

Abstract: A composite storage tank is built which has double wall characteristics. A method of building the tank comprises the steps of applying a viscous resinous core material to a support surface and then winding onto, into or along with the viscous resinous core material discrete filament bundles. The resinous core material encapsulates the filament bundles, but does not significantly penetrate into an interior of the bundles. The substantially resin-free interiors provide flow paths for the ready detection of wall leakage. The resultant composite storage tank has double wall characteristics. A crack or hole in either an inside or outside surface which extends at least to the encapsulated filament bundle interiors will alert the tank's operator/owner to a leakage problem.

Abstract: A method of forming flexible disks containing annular loop packets for the purpose of transmitting traction forces between fastening elements is disclosed. The loop packets and the fastening elements are combined into a ring and subsequently embedded in rubber-elastic material. In a preparatory operation, the loop packets are injection-coated either individually or in groups by a coating of elastomer material, which defines and stabilizes their outer contour. The elastomer material is only partially vulcanized before the ring is completely embedded in the rubber-elastic material. Injection coating renders the loop packets or groups of loop packets into components which are true to shape and size with defined wall thicknesses. Consequently, the characteristics and the life of the flexible disks are standardized for mass production and material consumption is reduced.

Abstract: A moving strand is provided and a size is applied to the strand. A collet is rotated to wind the strand and build a package. The strand is reciprocated with a strand reciprocator to lay the strand in a pattern on the package surface as the package rotates. The strand reciprocator is lubricated with a lubricant which is compatible with the size. There is also provided an apparatus for winding a fiber strand to build a cylindrical strand package having a radially outer surface. The apparatus includes a rotatable collet for receiving the strand to build a package. A strand reciprocator is mounted to guide the strand from edge to edge of the package and to lay the strand in a helical pattern on the package surface as the package rotates. A lubricator for atomizing a lubricant creates a fog of small airborne lubrication particles which are compatible with the size.

Abstract: Applicants have discovered that the speed of fiber manufacture can be substantially increased by employing a two-step curing process in which the fiber is drawn, coated and exposed to ultraviolet light on-line at high line speeds to effect a partial cure of the coating. After further cooling, the partially cured coating is fully cured by an on-reel exposure to ultraviolet light. The on-reel exposure can take place on the draw tower take-up reel as it is filing with fiber or it can take place off-line after the take-up reel has been filled and removed from the line. The on-reel exposure advantageously takes place either during filling the take-up reel, or during emptying the reel, so that each layer of fiber on the reel is exposed equally to the ultraviolet light. This method of UV illumination improves the energy efficiency in the second exposure by at least a factor of 10 to as much as a factor of 1000. The fiber primary coating pullout strength and mechanical modulus are enhanced.

Abstract: A method and apparatus is disclosed for the in-line pre-impregnation of glass or synthetic fibers with a non-aqueous chemical treatment. The apparatus includes a first applicator for applying a curable, non-aqueous chemical treatment agent and a second applicator for applying a curing agent for the chemical treatment agent. The fibers are passed over the first and second applicators which are arranged either in parallel or in series, and are then joined by a gathering device to initiate curing of the chemical treatment agent on the fibers. In an alternative embodiment, the apparatus comprises a spray gun in which a mixture of the non-aqueous chemical treatment agent and curing agent are sprayed onto an applicator roll in contact with the fibers.

Abstract: An EMI shielding member and method of making the member. The member includes a non-metallic substrate having an electrically non-conductive coating of a dielectric polymer matrix material loaded with an EMI shieldingly effective amount of electrically conductive fibers. The member can be formed by spraying the fiber loaded, dielectric polymer matrix onto a flexible fabric or tape.

Abstract: Method for the production of a silicone-based fireproof protection means and protection means thus obtained.According to the invention, the protection means include:an inner polymerized unfilled silicone coating (3) adhering to an object (2) to be protected; anda fire-resistant fibrous jacket (5) carried by said inner coating (3), without adhering to it.Application to the protection of pipes, especially hydraulic pipes.

Abstract: A method for producing an optical element, the method comprising the steps of: forming a liquid crystal polymer layer on a sheet-form substrate; forming a surface protective layer on the liquid crystal polymer layer; and carrying out a heat-treatment for crosslinking the liquid crystal polymer, or the method comprising the steps of: forming a liquid crystal polymer layer on a sheet-form substrate; carrying out a first heat-treatment for controlling the multidomain structure of the liquid crystal polymer layer; forming a surface protective layer on the liquid crystal polymer layer; and carrying out a second heat-treatment for crosslinking the liquid crystal polymer layer.

Abstract: The invention relates to a process for the preparation of a porous material layer covered with an electronically conductive polymer and to the product obtained by this process.This process consists of placing the layer (1) on a support sheet (3) optionally having roughnesses or unevennesses (4), applying to the layer a polymerization solution comprising a monomer (pyrrole), an oxidizing agent (FeCl.sub.3) and a doping agent (naphthalene disulphonic acid salt) using nozzles (6). The assembly is then wound up to form a composite roll (11), which is then immersed in the same polymerization solution for an adequate time to form a uniform, conductive polymer deposit (polypyrrole).It is thus possible to obtain conductive textiles with surface resistances of 5 to 20 Ohm.sup.2.

Abstract: A PC strand is coated with rust inhibitive material of thermoplastic resin so as to wholly close spaces left around a core and peripheral wires twisted around the core, thus preventing the core and wires from rusting. The strand coated with the rust inhibitive material can be produced without being untwisted by use of an extruding machine having an auxiliary pressure head connected to a cross head.

Abstract: A tube-shaped film, made of fluorine resin, has a fold-free, smooth, and uniform inner peripheral surface formed thereon by a surface treatment. An apparatus for treating the inner peripheral surface of the tube-shaped film includes a holding device for holding the tube-shaped film on the inner peripheral surface of a cylindrical body with a cylindrical configuration of the tube-shaped film maintained. A treatment device is inserted into the cylindrical body to treat the inner peripheral surface of the tube-shaped film held on the inner peripheral surface of the cylindrical body. The holding device and the treatment device make a uniform linear motion relative to each other and a uniform rotary motion relative to each other.

Abstract: A long continuous tube, strip or like material has a coating of brazing powders applied and formed thereon. It may be cut to sections of specific length when actually used. A uniform coating of brazing powders is applied in specific quantities and fixed onto the long continuous tube, strip or like material. A travel path has a tube made from aluminum or aluminum alloy running therealong. At least one spray gun section projects a coating mixture of brazing powders toward the travel path. A pressurized air supply section supplies pressurized air to the spray gun section, and a coating mixture supply section includes a coating mixture circulating arrangement and a feed line. A drying section is provided downstream of each respective spray gun section, and a rewinding section is provided at the end of the travel path.

Abstract: A web coating apparatus includes a supply roll of web and a wind-up spindle for receiving a discrete length of the web. Fluid is discharged from a coating die in a direction toward the wind-up spindle to coat the web as the web is wound about the wind-up spindle. A variable speed pump directs fluid through the coating die at flow rate that is proportional to the speed of advancement of the web. The apparatus is particularly useful for coating discrete lengths of orthopedic splinting and casting tape that is packaged for single patient use.

Abstract: A rotary suture cutting apparatus includes a base having an upper resilient layer, and a cutting assembly. The cutting assembly includes a frame and a rotary cutting tool having a disk shaped circular blade. The cutting tool is slidably mounted to the frame and when moved from one end to the other of the frame, cleanly slices suture material clamped between the base and the cutting assembly without brooming, fraying or otherwise disporting the cut suture tip. A method of preparing cut suture lengths is also provided.

Abstract: A method and apparatus is disclosed for producing dried sized glass fibers wherein a drying device is used to produce current flow along sized fibers to thereby partially or fully dry the size on the fibers. The apparatus may include an applicator for applying a size to the fibers and a drying device which comprises a high voltage electrode connected to a high voltage source and at least one grounded electrode. Drying is performed by passing the sized fibers by the electrodes such that a current flows along the sized fibers from the high voltage electrode to the at least one grounded electrode. The grounded electrodes may comprise grounded gathering shoes.

Abstract: A solid lubricant application procedure is combined in-line with a steel strip processing method which comprises processing steps upstream and downstream of the lubricant application procedure. The latter comprises applying the lubricant material in molten form or as a solution and may include temperature adjusting steps both upstream and downstream of the lubricant material-applying step. The space for incorporating the lubricant application procedure into the steel strip processing line is limited. The strip speed in the lubricant application procedure is synchronized with the strip speed normally attained in the steel strip processing method in the absence of an in-line lubricant application procedure. The steps of the lubricant application procedure are constrained to accommodate the space limits and strip speed synchronization requirement imposed on the lubricant application procedure when it is combined in-line with the steel strip processing method.

Abstract: A fully absorbable prosthesis (1) for the repair of damaged ligaments and/or tendons in the form of a multilayer spiral roll comprising the following spiral layers: a foraminous layer (2) of a synthetic bioabsorbable material; a bioabsorbable film (3); and a layer (4) of a bioabsorbable biopolymer sponge. The invention also provides a method of making such a prosthesis, comprising the steps of: providing a laminate of a foraminous layer of bioabsorbable material and a bioabsorbable film; coating the laminate with a layer of an aqueous gel comprising a bioabsorbable polymer; rolling up the laminate and the gel layer into a spiral roll, followed by drying the gel to form a layer of bioabsorbable sponge. The foraminous layer (2) preferably comprises a synthetic bioabsorbable polymer having high tensile strength. The bioabsorbable film (3) and sponge layer (4) preferably comprise a chemotactic biopolymer such as collagen.

Abstract: A film capacitor element produced from a metallized polyester film is described. In the metallized polyester film, the adhesion between a vapor-deposited metal layer and a polyester substrate is improved by providing a coating layer comprising a specific water soluble or water dispersible resin. The film capacitor produced by the use of the metallized polyester film has good moist heat resistance and long term stability in performance.

Abstract: A roll-to-roll coating of plastic film with dielectric coatings formed in situ by the reaction of a reactive gas with deposited metal provides arrays of rollers around which the web is looped between the low-pressure zone at which the metal is deposited in each pass upon and a high-pressure zone in which the reactive gas primarily reacts with the deposited metal.

Abstract: A method and apparatus for bonding, coating and/or dyeing yarn which impregnates the yarn with a solution containing at least one of a polymer resin, coating or dyestuff dissolved in a flammable solvent/carrier. The solvent/carrier in the impregnated yarn is then ignited to burn away a part of the solvent/carrier from the yarn. A portion of the solvent/carrier remains in the yarn to prevent damage to the yarn. The yarn containing the residual solvent/carrier then is dried at an elevated temperature.

Abstract: A spandex supply package has a cylindrical core on which is wound spandex having a surface lubricating finish. The last few hundred meters of the wound-up spandex, which constitute about 0.1 to 0.5% of the total length of spandex wound up in the package, has less than half the concentration of finish as does the remainder of the wound-up spandex in the package.

Abstract: An acqueous solution of a dimethylsiloxane containing polyelectrolyte is provided. It incorporates:a. polydimethylsiloxane blocksb. oxygen, nitrogen or sulfur containing polar groups andc. anionic groups.It provides slip, water repellency and good release per se from pressure sensitive adhesives.

Abstract: A superconducting magnet coil is produced by winding a superconducting wire to form a coil; impregnating the coil with a curable resin composition of low viscosity which contains for example at least one epoxy resin selected from the group consisting of diglycidyl ether of bisphenol A, diglycidyl ether of bisphenol F and diglycidyl ether of bisphenol AF, all having a number-average molecular weight of 350-1,000, a flexibilizer and a curing catalyst, to obtain a curable-resin composition-impregnated coil; and heating the curable-resin-composition-impregnated coil to cure the composition.

Abstract: The coated stent comprises a cylindrical wall formed by meshed wires and a covering layer of elastic material extending on a portion of its length, with an outer surface, and totally embracing the wire mesh.Method of coating the stent using a lifting medium and then an elastomeric composition dissolved in solvent are disclosed.

Abstract: The invention is composed of a non-aluminium metallic foil with a ceramic particle dotted layer formed on one side thereof is used and the non-aluminium metallic foil is wound on the peripheral surface of an inner shell of a duplex shell body in a state that the ceramic particle dotted layer is faced inwardly, wherein the circumference of the multi-layeredly wound layer is covered with an outer shell of the duplex shell body, and a space between the inner shell and the outer shell is sealed and evacuated.

Abstract: An endless belt in which a fibrous material is dispersed in a substantially uniform manner all over an endless elastic body layer is provided. A non-woven tape is impregnated with a polyurethane elastomer material liquid and wound and layered on a supporting belt, and then, after curing the polyurethane elastomer material liquid to form an elastic body, it is removed from supporting belt.

Abstract: An optical recording medium in which a recording layer (4) on which optically readable data are recorded is formed on a rectangular base material (1), a protective layer (5) is formed by roll coating on the recording layer (4) and wherein the base material (1) on which the recording layer (4) and the protective layer (5) have been formed is cut into a predetermined shape. The protective layer (5) provided on the recording layer (4) is formed of a material having a low Young modulus and a lower thermal conductivity as compared with the base material.

Abstract: There is provided an apparatus for producing a magnetic recording medium which enables a good-quality magnetic recording medium to be produced with an improved production efficiency.

Abstract: Apparatus for preparing first and second chemical compounds to be mixed for reaction, the first and second chemical compounds being extruded in respective first and second bands of semi-solid material and wherein one of the bands may be coated with a protective coating to prevent a chemical reaction between the epoxy resin and the curing agent until the epoxy resin and curing agent are kneaded together, the apparatus including a twisting section including a pair of endless belts which have portions overlying one another, the belts being oriented so that their axes extend at complementary angles relative to the direction of travel of an infeed conveyor belt which advances the juxtaposed bands of material through the twisting section which twists together the bands, producing an elongated, generally cylindrical product with first and second bands being wrapped helically upon one another.

Abstract: An adhesive tape is provided which is obtained starting from a roll of composite material consisting of a first continuous strip or tape of film material and a second continuous strip in a material having low adherence to adhesives, such as a siliconized continuous backing strip, the film material being a high-strength polymeric material film having adhered to one face thereof at least one extremely thin continuous run of adhesive obtained by applying said continuous backing strip onto said tape whereby said adhesive remains on said tape after removal of said continuous backing strip by virtue of the greater adhesion of said adhesive to said tape than to said continuous backing strip, said adhesive tape being useful for splicing continuous webs of thin films.

Abstract: A method of preparing a ply of composite material by applying an adhesive to a textile material comprising greige cords, so as to achieve an acceptable bond between the cords an elastomeric matrix, while not significantly altering the properties of the cords, is provided. The textile material comprises warp cords and weft cords; the weft cords are used to convey the warp cords through a heat setting oven without applying substantial tension to the warp cords, so as to not change their stress-strain properties. In the illustrated embodiment, the warp cords comprise aramid having a linear density of 500 to 3600 Denier and a twist multiplier of 5 to 8. The cords can be used in a crown reinforcing spirally wound overlay structure of a tire.

Abstract: Improved stiffening materials containing hydraulic binders are obtained by applying a hydraulic binder, if appropriate in mixture with reactive binders, in powder form to a sheetlike material, for example a bandage fabric, compacting the hydraulic binder in contact with the sheetlike material, and winding the sheetlike material thus provided with the compacted hydraulic binder into rolls.