Abstract: An absorptive laminated sheet material having improved, moisture-resistant, pressure bonded spots for locking the lamination layers together. During fabrication of the laminated product, a thermoplastic low-viscosity wax-like substance, such as melted wax or paraffin, hot melt plastic or the like, is applied in minute amounts onto juncture lines of pressure bonded spots formed in the pads. The thermoplastic material penetrates the layers of the laminated product so that, on cooling, it forms a "wax rivet" at each bonded spot, thus providing added strength for the juncture lines and rendering the layers impervious to absorbed liquid at the points of application.

Abstract: A chemically implemented method is disclosed for producing structural connections between pairs of members, a portion of the first member being telescoped within an opening formed by and within the second member, such connections being substantially comparable in strength and rigidity to connections produced by forced fit or by thermal shrinkage methods.Members are formed to provide for mutual fits which may range from "coarse clearance fit" to "light push fit", allowing generally for hand assembly. Prior to assembly the interfacing surfaces are coated with simple ferrous oxide. After assembly the members are clamped or supported temporarily to provide immobility to the joint during the expansive conversion of simple ferrous oxide to higher levels of ferric oxide via the introduction of hydrogen peroxide solution of at least 15% concentration into the interstices of the joint. The clamp or support is then removed leaving a strong and compressively impacted joint.

Abstract: A fabric of a polymer material useful for filtration and other purposes can be treated with a mixture of a solvent for the polymer material in a liquid which is not a solvent for the polymer material and which is more volatile than the solvent for a time and at a temperature sufficient to dissolve some polymer material in the strands. As this occurs the surface tension of the dissolved polymer will cause the dissolved polymer to move to create a continuous, smooth walled, curved surface connecting adjacent strands and extending between such strands.

Abstract: An absorptive laminated sheet material having improved, moisture-resistant, pressure bonded spots for locking the lamination layers together. During fabrication of the laminated product, a thermoplastic low-viscosity wax-like substance, such as melted wax or paraffin, hot melt plastic or the like, is applied in minute amounts onto juncture lines of pressure bonded spots formed in the pads. The thermoplastic material penetrates the layers of the laminated product so that, on cooling, it forms a "wax rivet" at each bonded spot, thus providing added strength for the juncture lines and rendering the layers impervious to absorbed liquid at the points of application.

Abstract: A method and a structure for mounting to a head carriage a magnetic head applicable to a magnetic recorder or reproducer in an electronic camera system wherein an object is electronically photographed and recorded into a rotating magnetic disc and an image is reproduced by a television system or a printer. In the method and structure, a pin is inserted through a through-bore in a head mount plate and is then brought into abutment with the head carriage. Adhesives are applied to clearances between the pin and the through-bore of the head mount plate as well as between the pin and the abutment surface of the head carriage to fill them up. In the method and structure, since the head mount plate is adhesively attached to the head carriage via the pin, the resultant adhesive layers are reduced in thickness, thereby preventing the magnetic head from shifting out of position when the adhesives are hardened.

Abstract: A wooden tile which is preferably used for floor covering is formed by a number of individual members which are bonded together. The wooden tile is made by knife cutting a sheet of wood from a substantially stressless piece of timber and then cutting the individual members from the wooden sheet. Adhesive such as ureaformaldehyde is applied to the edges of the members to bond them together. Alternatively, the individual members are adhesively bonded onto a mesh and some adhesive seeps between the edges of the members. The tile so formed is flexible, durable and economic to manufacture.

Abstract: Improved method and apparatus for use in sealing gelatin capsules filled with medicinal ingredients wherein each capsule has a generally cylindrical cap and body arranged with the side wall of the body telescopically within the side wall of the cap to contain the medicament therein comprising an economical and compact wetting device for automatically conveying filled capsules from a capsule-filling machine by pneumatic pressure conveyance through one or more passageways to a wetting location where each capsule is maintained in a generally cap-upright position and metered amounts of a wetting liquid are applied to side wall portions of the body of the capsule adjacent the seam of the cap and body to pass by capillary action into the space between the overlapping cap and body side walls, and the capsules are released from wetting positions in the passageways for further pneumatic conveyance to a point of heat treatment for final sealing of the body and cap portions of the capsule to prevent their separation and

Abstract: A method of making shaped bodies of silicon carbide, of graphite coated with silicon carbide or of a graphite-like material with a silicon carbide surface wherein a graphitic body is assembled from preformed parts in the desired shape and is immersed, under a chemically inert atmosphere, in a silicon melt and after penetration of the melt into gaps between abutting surfaces of the body and after reaction of the silicon with the graphite or the graphite-like material to form silicon carbide at the junctions, the body is removed from the melt and is cooled in a chemically inert atmosphere.

Abstract: A process for chemically bonding a screen fabric material to a frame structure for serigraphic printing purposes. The bonding or fastening process includes, providing a screen fabric material in taut communication to peripheral portions of a frame structure. A cyanoacrylate based adhesive is applied to the screen fabric portions in communication with the frame periphery. A chemically basic catalyst is then brought in contact with the applied cyanoacrylate adhesive to activate or accelerate the anionic polymerization of the applied adhesive for quick curing thereof. The use of methylcyanoacrylate, ethylcyanoacrylate and isopropylcyanoacrylate adhesives are provided for specific end-use purposes. A basic catalyst, in a spray mixture, consisting of aromatic amines is used for quick and easy anionic polymerization of the cyanoacrylate based adhesive.

Abstract: An iron-on interlining composite of nonwoven and knit material is described, the knit being similar to the nonwoven material as to fiber structure and the knit fibers being tightly welded to the nonwoven fibers.

Abstract: Wood veneer panels bonded with cupriethylenediamine hydroxide and iron sodium tartrate, and methods of preparing same.

Abstract: An improved method for fabricating electrode structures, particularly flame-front sensors, spark plugs and the like, wherein the center electrode, the insulating housing therefor, and an outer housing are dimensioned such that a small clearance space is provided between each of the parts; a fluid glue is inserted in the clearance or spacing provided in a fixation zone at one end of the structure by capillary action, so that the device is self-centering and heat sealed and not more than 3 mm in diameter, thus facilitating quick and easy installation in engine cylinder heads and combustion chambers.

Abstract: A method of bonding elements together with a bond of high strength and good electrical conductivity which comprises: applying an unfilled polyimide resin between surfaces of the elements to be bonded, heat treating said unfilled polyimide resin in stages between a temperature range of about 40.degree. to 365.degree. C. to form a strong adhesive bond between said elements, applying a metal-filled polyimide resin overcoat between said elements so as to provide electrical connection therebetween, and heat treating said metal-filled polyimide resin with substantially the same temperature profile as the unfilled polyimide resin. The present invention is also concerned with an adhesive, resilient, substantially void free bonding combination for providing a high strength, electrically conductive adhesive attachment between electrically conductive elements which comprises a major amount of an unfilled polyimide resin and a minor amount of a metal-filled polyimide resin.

Abstract: Methods are disclosed for the sealing of gelatin capsules having coaxial cap and body parts which overlap when telescopically joined. Also described are apparatus and denaturation-melting point depression mixtures to seal the capsules.

Abstract: A plastic part has a broad surface area for solvent bonding to another plastic part; the bonding surface has a groove, recess, or non-dissolvable portion for restricting the solvent to a narrow marginal edge area for uniform distribution. In one embodiment, a plastic hinge (FIG. 2) and two hinged members (64,66) are pivotally interconnected by the leaves. Grooves (52, 54) are formed on the mating surface of hinge halves. These grooves define and isolate marginal portions (56, 58) on the faces of the leaves from inner portions (60, 62). The grooves act as barriers to prevent penetration of a solvent, used for bonding the hinge leaves to the two hinged members, from the inner support portions of the leaves. When the solvent is injected into the area of contact between the mating plastic parts from the outer edge of each hinge element, e.g., by a syringe, it wets and dissolves the marginal portions and the underlying areas of the two hinged members but is restricted to the marginal areas by the grooves.

Abstract: A process for bonding the surfaces of two polymeric materials and an improved optocoupler manufactured therewith is provided. Optocouplers are typically manufactured with the emitter and detector devices enclosed within a coupling material such as silicone gel for providing an electrical dielectric while being transparent to light. The coupling material is enclosed within an encapsulating material that is both reflective to light, protective against mechanical forces, and opaque to ambient light. The disclosed process bonds the coupling material to the encapsulating material to eliminate creepage paths and prevent the resultant voltage breakdown between electrodes along the interface of the two materials. The coupling material is treated so that active functional groups are formed on the surface, leaving it in an activated state. The surface of the second material is placed over the treated surface of the first material so that a chemical bond is formed.

Abstract: A chemically implemented method is disclosed for producing structural connections between pairs of members, a portion of the first member being telescoped within an opening formed by and within the second member, such connections being substantially comparable in strength and rigidity to connections produced by forced fit or by thermal shrinkage methods.Members are formed to provide for mutual fits which may range from "course clearance fit" to "light push fit", allowing generally for hand assembly. Prior to assembly the interfacing surfaces are coated with simple ferrous oxide. After assembly the members are clamped or supported temporarily to provide immobility to the joint during the expansive conversion of simple ferrous oxide to higher levels of ferric oxide via the introduction of strong hydrogen peroxide into the interstices of the joint. The clamp or support is then removed leaving a strong and compressively impacted joint.

Abstract: A material intended to form a joint between at least two bodies on the outside of their interface, at least one of the bodies being deformable, is characterized by the following features:(a) it is formed of a fluid mixture having a viscosity, measured at normal temperature, of from 0.3 Pa.s to 700 Pa.s;(b) a dry extract of the fluid mixture, measured at normal temperature and pressure, is from 20% by weight to 80% by weight, based on the weight of the fluid mixture;(c) the dry extract of the fluid mixture comprises an elastomer fraction at least 20% by weight of which elastomer fraction is formed of at least one unsaturated elastomer capable of cross-linking either at ambient temperature or by heating for a period of time of less than one minute.Methods for producing assemblies with this material, consisting, for instance, of manufacturing, repairing or recapping a tire.Assemblies obtained by these methods.

Abstract: A strong, durable nonwoven fabric comprising polyester and/or polyolefin fibers arranged in a pattern of high density, lightly entangled fiber regions. Distributed throughout the fibers is an adhesive binder material to provide the final fabric with improved strength characteristics.Entangled nonwoven fabrics are dry print bonded to produce nonwoven fabrics having an excellent combination of strength, softness and durability.

Abstract: A moveable clamp and an improved method of fabricating insulated glass is disclosed according to the preferred teachings of the present invention. The clamp includes first and second clamping rollers which are rotatably mounted to the first ends of first and second arms. The arms are pivotally mounted together by a third arm having a first end attached to the first arm and having a second end pivotally secured to the second arm. The second ends of the first and second arms are biased apart by a spring for creating a clamping force between the first and second clamping rollers. A first guide wheel is rotatably mounted to the first arm for rolling on the outside surface of the glass sheet to prevent the clamp from tipping with respect to the stacked glass sheets. A second guide wheel is rotatably mounted to the first arm for rolling on the edges of the stacked glass sheets for preventing the clamp from moving away from the perimeter of the stacked glass sheets.

Abstract: Two or more webs (11 and 12) of highly bulked substrate are passed into a nip formed between a gravure roller (14) and an impression roller (15). The impression roller has raised areas defining an interconnected network of lines such that the webs are compressed only under the raised areas; as a result, the binding liquid applied by the gravure roller (14) to the laminate of the two webs is absorbed substantially through the webs in the compressed areas. The gravure roller (14) may have a uniform surface, such that a light coating of binding liquid is applied to the surface of the uncompressed areas in the laminate, or the gravure roller may have a pattern of etched grooves or cells which matches and registers with the pattern of raised areas on the impression roller. In the latter embodiment, binding liquid will be absorbed into the laminate only in the compressed areas.

Abstract: A resin solution is made from (1) an adhesive resin, such as a polyester resin containing an adhesive component, (2) a mica bonding resin such as an epoxy resin containing both cycloaliphatic epoxy and novolac epoxy, and (3) latent curing agent for the mica bonding resin; where the resin solution is used to coat a mica-backing composite, to provide, when dried at a time and temperature only to remove solvent, a mica bond mica tape useful for wrapping electrical coils without splitting or loss of mica.

Abstract: To produce a vessel prosthesis, a hose (12) is wrapped with a reinforcing thread (13) to avoid bending and clogging of the vessel prosthesis. The reinforcing thread (13) is wound substantially tensionless on the soft hose (12) thus prohibiting wavy deformations inside the hose. To exclude prior to the solidification of the adhesive connection a displacement of the reinforcing thread (13) being bonded to the hose, a band-shaped spacer (14) is wound up together with the reinforcing thread (13) and removed subsequently.

Abstract: An improved glazing system wherein glass panels are secured to a frame member in an edge-to-edge sealed relationship. A first glass panel is bonded to a frame member such as a vertical mullion using a sealant which adheres to the edge of the first glass panel and to the face of the first glass panel adjacent the edge. A portion of the frame is removed to expose a section of the bonded sealant and thereafter a second glass panel is positioned on the sealant such that the two glass panels are in an edge-to-edge, sealed relationship. The edge to edge abutting relationship of the panels may be accomplished without the need for caulking or exterior access to the glass panels.

Abstract: A connection between a graphite or carbon block having a cavity therein and the end of an electrical conductor disposed therein is made with a tamping material comprising flowable graphite powder, a metal oxide, a resin binder, and a flow promoter such a silica or a resin. The finished connection is treated with an acid dopant which reacts with the metal oxide to form a bond between the conductor and the block.

Abstract: A thin sheet is formed into a surface having compound curvature by vacuum forming the sheet against an array of support posts which have been adjusted to define the locus of the desired surface. A rigid frame is placed on the exposed back surface of the sheet and bonded thereto while the vacuum formed shape is maintained. Alternatively, a frame of beam members kerfed to make them compliant is placed on the back surface and bonded to the sheet which restores the structural integrity of the beams by briding the kerfs.

Abstract: The method of splicing belt ends to form an endless belt wherein such belt has reinforcing cords extending longitudinally therethrough. The respective belt ends are sheared to provide complimentary mating faces which are cemented together. Slots are cut along the running length of both end belt sections across the splice line and spaced laterally from the reinforcing cords. Additional cords are placed into such slots and cemented to both sections to provide an integral endless belt.

Abstract: A storage tank for liquid bitumen including a steel shell having heat insulation adjacent to its interior surface. The insulation is glass foam. Preferably, the insulation is in the form of glass foam panels which are initially arranged with gaps between them. When the tank is filled for the first time, the liquid bitumen penetrates into the gaps and solidifies therein to permanently interconnect the glass foam panels. A glass foam insulating cover floats on the surface of the liquid bitumen, and a heating unit is located within the tank.

Abstract: A corn popping machine and method of assembling the same for the popping, storing and displaying of popcorn, which includes a three-sided panel member of a generally U-shape forming three side walls to the popping machine. A top chassis plate is secured to the top edge of the panel member by securing means and includes means for attachment of corn popping equipment and electrical connecting and controls. The lower edge of the panel member is secured to a base member having channels to matingly retain the lower edges of the panel member. Doors are attached to the corn popping machine and cover the vertical opening between ends of the U-shaped panel. The method of assembling the corn popping machine includes the steps of attaching the top chassis member and the base member to the top and bottom edges of the panel member respectively.

Abstract: A substantially non-overlapping tightly packed layer of plastic chips is formed and attached to the surface of a substrate by a method in which the chips are dispersed onto the surface of a liquid, flowing from a first location to a second location. The rate of flow of the surface of the liquid is reduced at the second location to cause the chips to pack together in a single-chip-thickness layer. The layer of chips is then removed from the liquid by passing a porous web upward at an angle from below the liquid surface through the chip layer-liquid interface. The chip layer is then transferred to a heat-sensitive transparent adhesive coating on a suitable prepared substrate and secured thereon by means of heat and pressure. A resinous wear layer which is transparent after fusion is then applied.

Abstract: Composite materials and composite building elements have two layers:(1) a layer obtained from a vulcanizable composition based on EP(D)M and(2) a layer obtained from a vulcanizable composition based on an elastomer component consisting of 5-50% by weight of a polyoctenylene elastomer and 50-95% by weight of an elastomer, or several elastomers, selected from the group of SBR, NBR, CM and the diene elastomers.The strength of the interlayer bond attained by vulcanization welding is good to excellent.

Abstract: According to the invention a dust-proof reinforcing sheet material is provided. The sheet material is applied over and around a handling opening of a box. The sheet material comprises a base sheet having through-holes punched out, an adhesive layer applied on one side of the base sheet and an elastic film applied on the other side of the base sheet. The elastic film is stretchable five times as the original size and is transparent or translucent to allow light rays to transmit therethrough. The light rays passed through the elastic film and the throughhole is sensed by photo-sensor to cut the sheet material at a pre-set position.

Abstract: Methods are disclosed for the sealing of gelatin capsules having hard shell coaxial cap and body parts which overlap when telescopically joined. Also described are apparatus and sealing fluids to seal the capsules.

Abstract: A fire retardant material is formed by intimately associating the unexpanded form of perlite in association with a permeable mass of silica glass, said association is formed by permeating said perlite into said mass of glass. Preferedly the composition comprises particles of unexpanded perlite less than 100 mesh and preferably no larger than 200 mesh and the permeable glass comprises a glass fiber mat. The fire retardant material can be formed as a unified body capable of being applied onto other structural components or alternately, it can be intimately bonded to the surface of structural components as a veneer layer. Upon exposure to combustion temperatures the perlite expands from its unexpanded form to its expanded form at or near the deformation point of the glass mat followed by reaction of the perlite and the glass to form a flame-impenetrable ceramic.

Abstract: In order to prevent uncontrolled running, spreading and splattering by the adhesive contained in a surface-fastened frangible adhesive capsule as the capsule is smashed when two objects are brought together in a face-to-face manner while the capsule is disposed between them and has been preliminarily fastened on an interfacial surface of one of them, the capsule is ringed by a flacid plume of barrier material such as crepe paper, having a substantial thickness when unconfined, but which is subject to being compressed to insubstantial thickness. The barrier ring may be surface fastened to either of the interfacial surfaces and may be separate from or unitary with the capsule hanger.

Abstract: A protective material for use in articles of apparel such as golves, leggings, sleeves, aprons and the like. The protective material comprises a base layer composed of textile material, an intermediate layer composed of a cut-resistant material having intermeshing strands defining pores therebetween and an outer layer composed of solid, elastomeric material which retards penetration by liquid. The elastomeric material covers and is bonded to the base layer which prevents passage entirely therethrough by liquid, elastomeric material but permits partial penetration. The solid, elastomeric material extends through the pores of the intermediate layer and encapsulates the strands thereof. A method for producing the protective material comprises dipping an article composed of base layer and intermediate layer into a bath of liquid, elastomeric material preferably after absorbing into the base layer a coagulant for the liquid elastomeric material.

Abstract: An embedment compound for a paintbrush or the like, together with a paintbrush construction and method of manufacture embodying the improved embedment compound. The embedment compound is a polyurethane composition having a crosslink density sufficient to render such compound acceptably resistant to all paint solvents.For example, a typical embodiment composition comprises a blend of Mondur MR with a prepolymer prepared from Pluracol TP-440 and Isonate 143L, and the blend cured at 100.degree. C. overnight.

Abstract: A quantum of liquid adhesive is encapsulated in an ampule-like frangible capsule. An instrumentality is provided by which the adhesive-containing capsule may be temporarily secured on one surface of two objects which are to be adhered together in a surface-to-surface manner. For instance, a foraminous paper band is looped around the capsule and thumbtacked to one of the objects. Several similar adhesive-containing capsules may be similarly temporarily secured on one or the other of the objects, these capsules being distributed in a pattern calculated to cause sufficient adhesion of the two surfaces upon application of the adhesive thereto. Then the two objects are placed in surface-to-surface, confronting relationship and one of the objects is pressed toward the other, for instance by tapping its accessible side with a hammer everywhere that there is an adhesive-containing capsule disposed on the now inaccessible side.

Abstract: The present invention relates to an improved method and apparatus for applying solvent to an object for the purpose of solvent bonding the object to another object. The present invention is especially useful in connection with narrow diameter hollow cylindrical objects such as tubing. The present invention is especially applicable to high speed and mass production requirements where numerous pieces must be solvent bonded in rapid succession.

Abstract: This invention relates to an improved method for rendering discrete portions of a moving web with an elasticized character while preserving the inelastic character of the remaining portions of the substantially inelastic web. The method is especially suitable for use in the manufacture of disposable diaper components and the like.

Abstract: A tennis-ball is made by covering a spherical core with twelve substantially identical pentagonally-shaped pieces of a cover material. Before the pentagonally-shaped pieces are attached to the core, they are covered on their outermost surface by a removable layer of adhesive-impermeable barrier material (e.g. tissue paper). The barrier material restrains the movement of the pentagonally-shaped pieces when applied to the spherical core, so that a narrow uniform seam is obtained. When all twelve cover pieces are correctly positioned on the core, the barrier material is removed and the assembly subjected to a random rolling action to "finish" the ball.

Abstract: A display panel comprising a plurality of printing ink layers having the same patterns one another being formed on the surface of a transparent substrate by means of transferring operation and a semi-opaque layer existing among the printing ink layers adjacent to each other; a display panel obtained by forming a pattern involving arbitrary characters, figures or pictures on the surface of a substrate by means of transferring technique; and a process for forming such pattern.

Abstract: A process for bonding a copper or copper-chromium alloy body and a ceramic body of components of an electrical or electronic device to each other includes a step of directly sandwiching a layer of chromium oxide between the ceramic and copper or copper-chromium bodies, a step of heating a temporary assembly of the ceramic and copper or copper-chromium alloy bodies and the layer of chromium oxide, under an atmosphere which can oxidize chromium without oxidizing copper, at a temperature of at least 900.degree. C. but below the melting point of copper or the alloy, and then a step of slowly cooling the resulting bonded assembly. In particular, in a process for bonding the alloy body to the ceramic body, the chromium oxide sandwiching step is performed concurrently with the temporary assembly heating step. The bonding process can produce a hermetic envelope, particularly a vacuum envelope of a vacuum interrupter.

Abstract: An electrolysis apparatus comprising a diaphragm of a solid polymer electrolyte, and an anode electrode structure and a cathode electrode structure located on both sides of the diaphragm, at least one of the electrode structures intimately contacting the surface of said diaphragm, the intimately contacting electrode structure comprising a gas-permeable electrically conductive substrate and a film-like porous electrode catalyst layer bonded integrally thereto and a method for producing such.

Abstract: A method of making a multiconductor cable assembly is disclosed wherein at least a portion of the cable assembly is comprised of multiple insulation-sheathed conductors arranged side-by-side in contiguous relation so that the insulation sheaths of adjacent conductors have a substantial interfacing contact area. First and second beads of material integral with the adjacent conductor sheaths and located adjacent each side of the interfacing contact area hold the cable together and maintain its flat profile. The cable can also include portions having a compact profile and can have unbonded ends. The cable assembly is formed by applying a bonding agent, comprised of a filler dissolved in a solvent for the insulation sheaths, as a bead between each pair and on each side of contiguous conductor sheaths. The bonding agent beads initially intermingle with the insulating sheaths material, but do not penetrate into the interfacing area between contiguous sheaths.

Abstract: An entangled non-woven fabric having a fiber structure which comprises a portion (A) in which ultrafine fiber bundles consisting of ultrafine fibers of a size of not greater than about 0.5 denier are entangled with one another and a portion (B) in which ultrafine fibers to fine bundles of ultrafine fibers branch from the ultrafine fiber bundles and are entangled with one another, and in which portions (A) and (B) are nonuniformly distributed in the direction of fabric thickness. The product of this invention has high flexibility as well as good shape retention.The invention also relates to a grained sheet having on at least one of its surfaces a grain formed by a fiber structure composed of ultrafine fibers to fine bundles of ultrafine fibers and having a distance between the fiber entangling points of not greater than about 200 microns, and a resin in the gap portions of the fiber structure.

Abstract: A new and improved structural material comprising an interpenetrating plastic and substrate network material composite including two phases, a first phase comprising a substrate of paper or paper-like material or other fibrous or absorbent material defining a fibrous network phase, and a second phase comprising a polymerized plastic material penetrating and intimately contacting the structure of the paper or other fibrous or absorbent material filling the voids and interstices between the fibers of the paper material and hardened to a desired condition of rigidity. The composite is formed by saturation and in situ polymerization from a solvolysis system. The composite material is further incorporated in a monolithic laminar structure by application of layers of the solvolysis adjusted for sufficient agglomerating and aggregative characteristics to form plastic weldments or fillets at intersections of the substrate portions.

Abstract: This application discloses a sealing floor covering useful in moist rooms and outdoor areas, comprising an undercoat and an outermost surface covering bonded to the undercoat. The undercoat is comprised of at least three bonded-together layers of a vulcanizable elastomeric material and at least one intermediate layer of the undercoat contains a vulcanization accelerator.

Abstract: A rotatable processing bowl assembly adapted for mounting in a centrifuge includes an umbilical tubing system formed of a plurality of individual flexible tubes each of which communicates with the processing bowl. Each tube has an exterior wall and includes a first portion extending adjacently from the bowl and a second portion which is spaced from the bowl. The exterior walls of the tubes are bonded together along their first portions so that the joined exterior walls collectively define the outer periphery of the tubing system along the first portions of the tubes. Preferably, the tubes are also wound to form a predetermined helical pattern along their first portions. This arrangement enhances the tubing system's durability and resistance to fatigue along the bonded together first portions, particularly at higher rotational speeds, and permits direct, facile connection of the free and unattached second portions with external apparatus.

Abstract: An adhesive resin application system which requires no external heating apparatus, and which is operative in the absence of a reactive atmosphere, is disclosed. The system provides its own heat by employing an adhesive material containing reactants which react exothermally when electrically ignited. After ignition of the reactants, sufficient heat energy is liberated by the exothermic reaction either to plasticize a thermoplastic resin or to cure a thermosetting resin and therby bond together two closely spaced objects.This application is a continuation-in-part of application Ser. No. 489,006, filed Apr. 27, 1983, which is a continuation-in-part of application, Ser. No. 929,120, filed July 28, 1978, both now abandoned.