Abstract: An insert injection molding method is characterized by using an insert member having an applied surface coating comprised of an organic polymer compound, and at least one compounds selected from the group consisting of spiro ortho ester compound, spiro orthocarbonate compounds, trioxacylooctane compounds, and ketal lactone compounds.

Abstract: A novel isotropically reinforced microcomposite is described. An entirely fluid-phase method has been devised for producing the net-shape filamentary structures. The process depends for its success on the ability to generate in situ, within a shaped mold, a three-dimensional random weave of carbon filaments by catalytic decomposition of a hydrocarbon feed. Almost any desired filament filler matrix combination can be produced by utilizing chemical vapor deposition to modify the surface and bulk properties of the filamentary structure. Infiltration of filler matrix materials can be achieved by adaptation of existing materials technologies.

Abstract: A process for making a rigid composite structure with a thermoplastic polymer surface by:a. thermoforming a thermoplastic polymeric sheet into a three dimensional structure; the sheet has a primary glass transition temperature that is at least 10.degree. C. greater than the molding temperature of step c. below;b. placing the thermoformed structure and a charge of sheet molding compound (SMC) in a mold andc. heating the charge and thermoformed structure under pressure in the mold to cure the SMC and to adhere the SMC to the thermoformed structure, where the molding temperature is at least 10.degree. C. below the primary glass transition temperature of the thermoplastic polymeric sheet;the resulting composite structure which can be finished with a paint or a layer of clear coat and color coat also is part of the invention.

Abstract: A pneumatic type pipe-end protector pressurizable for clamping onto a pipe-end is manufactured by centering a containment ring supported by a filling duct in a casting mold, covering the filling inlet with a pneumatically expandable element attached to the ring maintaining the outer end of the filling duct in communication with the ambient atmosphere, and then introducing plastic into the casting mold for forming the protector body.

Abstract: A process for producing a composite laminate comprising a insert part and an injection-molded resin part by coating the insert part with a primer comprising a copolymer aqueous emulsion having a glass transition point of not higher than 20.degree. C. which is obtained by emulsion polymerization of a monomer mixture consisting mainly of (a) from 35 to 75% by weight of an alkyl acrylate having from 1 to 8 carbon atoms in the alkyl moiety thereof, (b) from 10 to 50% by weight of an alkyl methacrylate having from 1 to 4 carbon atoms in the alkyl moiety thereof, (c) up to 15% by weight of styrene and/or acrylonitrile, the sum of the (b) and (c) components ranging from 15 to 55% by weight, (d) up to 5% by weight of a vinyl monomer selected from the group consisting of an .alpha.,.beta.

Abstract: An encapsulated multiple glazed structure is formed by positioning at least two spaced apart substantially coextensive sheets of glazing material wherein the sheets are maintained in aligned spaced relation by a suitable spacer element adjacent the peripheral portions of the facing surfaces of the glazing sheets. The above assemblage is then typically placed within a mold cavity of a suitable molding apparatus and a charge of an elastomeric gasket forming material is injected therein to form an encapsulating gasket around the peripheral edge portions of the assemblage to produce a multiple glazed structure.

Abstract: A printed circuit is formed by conventional methods over an adhesive coating applied to a flexible high temperature withstandability disposable backing to form a flexible laminate which is positioned in a cavity of an injection mold to conform to surface variations. The printed circuit conductors are surrounded on three sides by molten plastic material injected into the mold cavity to embed the conductors in the respective surfaces of the molded plastic article, which surfaces are non-coplanar and adjoining and the conductors are continuous from one surface to the other. The bond strength of the adhesive is preferably high with regard to the backing and low with regard to the printed circuit conductors to permit adhesive and backing to be peeled away after molding, thereby providing a three diemensional printed circuit in, for example, a recessed area of a molded plastic housing part of electrical apparatus.

Abstract: A method of covering steel parts onto the outer surface of which there is applied a plastic coating which is surrounded by an embedding material. In order to obtain in a simple manner increased adherence between plastic coating and embedding material a granular powder or granulate is applied to the plastic coating which is still not completely hardened so that the individual powder granules are received only in part by the coating surface, so as to form profiling projections. In accordance with a variant, the profiling projections can also be formed by the side flanks of a helical rib which is extruded onto the heated plastic coating.

Abstract: A method of making molds which is easy, quick and can be accomplished at room temperatures and atmospheric pressures. The method includes applying at least one layer of gel to a male mandrel and curing at least one layer of polyester impregnated fabric to the gel layer. At least one layer of epoxy impregnated fabric is cured to the polyester impregnated fabric. At least one layer of plaster impregnated is cured to the epoxy impregnated fabric. At least one layer of epoxy impregnated fabric is cured to the plaster impregnated fabric. The resulting mold is removed from the male mandrel.

Abstract: An aqueous coating composition is provided for thermoplastic films comprising(i) from 1 to 10 weight percent based upon the total weight of the coating composition, of a sulfonated copolyester consisting essentially of the polyester condensation product of the following monomers or their polyester-forming equivalents:(A) about 65 to 95 mole percent of isophthalic acid;(B) about 0 to 30 mole percent of at least one aliphatic dicarboxylic acid of the formula HOOC(CH.sub.2)--.sub.n COOH, wherein n ranges from about 1-11;(C) about 5 to about 15 mole percent of at least one sulfomonomer containing an alkali metal sulfonate group attached to a dicarboxylic aromatic nucleus; and(D) stoichiometric quantities of about 100 mole percent of at least one copolymerizable aliphatic or cycloaliphatic alkylene glycol having about from 2 to 11 carbon atoms,(ii) from 0.

Abstract: A high optical quality transparent plastic sheet having a polyurethane layer formed by reactive pouring or reactive pulverization onto a flat horizontal support of a reaction mixture containing a polyol component and an isocyanate component, with the surface of the polyurethane layer which was facing the support during the formation of the layer containing an acrylic polymer resulting from the contact, during deposition of the reaction mixture, of the reaction mixture with a thin acrylic layer previously deposited on the support. The acrylic layer and the polyurethane layer are interpenetrated.

Abstract: Method for producing a gas separation membrane comprising a microporous support having provided thereon a non-porous coating layer. The method comprises melt extruding a thermoplastic crystalline polymer under particular melt-extrusion conditions to form a precursor in the form of a hollow fiber or flat film, coating the precursor as a support with a coating substance composed of a natural or synthetic substance capable of forming a polymeric layer which does not form pinholes upon subsequent drawing after solidification to form a coating layer on the surface of the support, and solidifying the coating layer. The support is annealed either before or after the cooling process, and this is followed by cold drawing and heat setting the support to form the gas separation membrane.

Abstract: The body of a magnetic tape cassette is formed by injection molding of plastic material or the like, and is provided with a protecting film layer on at least a part of the outer surface thereof. The protecting film layer is bonded to the surface of the cassette body simultaneously with the molding of the cassette body by injecting molding material into a cavity of a plastic injection mold with a protecting film material being inserted into the cavity before injection.

Abstract: A method of making a porous mold for pressure slip casting. A surface porous layer is cast which has an average pore diameter of at most 20 microns and a thickness of 5 to 40 mm. An adhesive is applied in a pattern to the rear surface of the surface porous layer to leave an unapplied portion on the rear surface. A coarse porous layer is applied to the adhesive applied and unapplied portions of the rear surface of the surface porous layer which is made of a mixture of liquid resin and a filler of a particle diameter of 0.1 to 5.0 mm at a volume ratio of 15 to 50:100. The coarse porous layer has a thickness of 5 to 30 mm. A sealing adhesive is applied to the surface of the coarse porous layer and means is applied for passage of water from and air into the coarse porous layer.

Abstract: A comfort-enhancing improvement upon a known dental film packet having sensitized film and protective opaque sheets enclosed by a light-tight envelope that includes an opposed pair of generally parallel walls covering the sheets, those walls being joined together along facing marginal areas thereof surrounding the sheets so as to define a main body portion and a perimetric edge portion of the envelope. The improvement includes a pliant bead of substantially non-porous, non-toxic, polymeric elastomeric material, preferably a silicone resin, that is molded in situ around at least part of the perimetric edge portion to encapsulate that part of the edge portion with such material and thereby provide the encapsulated part with a softer, smoother, and more rounded peripheral surface.

Abstract: A preformed yarn useful in forming fiber-reinforced carbon composite articles is disclosed which includes a core of a multiplicity of inorganic reinforcing fibers, a mixed powder provided in the interstices between the fibers and including a finely divided carbonaceous binder pitch and a finely divided coke, and a flexible sleeve formed of a thermoplastic resin and surrounding the core.

Abstract: A novel isotropically reinforced microcomposite is described. An entirely fluid-phase method has been devised for producing the net-shape filamentary structures. The process depends for its success on the ability to generate in situ, within a shaped mold, a three-dimensional random weave of carbon filaments by catalytic decomposition of a hydrocarbon feed. Almost any desired filament filler matrix combination can be produced by utilizing chemical vapor deposition to modify the surface and bulk properties of the filamentary structure. Infiltration of filler matrix materials can be achieved by adaptation of existing materials technologies.

Abstract: A light weight cultured marble casket is provided which is aesthetically pleasing in appearance, durable in construction and resistant to deterioration by the elements. The casket comprises a body member having an exterior portion formed of cultured marble and a base member (which cooperates with the body member to form a unitary structure having a cavity formed therein), a closure assembly pivotally connected to the body member for selectively sealing the cavity and for permitting access thereto, and a securing assembly for securing and locking the closure assembly to the body member when the closure assembly is in a closed sealing position. The base or bottom portion of the casket, as well as the interior portion of the body member and the interior portion of the closure assembly, are fabricated of a fiberglass-containing resinous material.

Abstract: Polyimide polymer composites having a combination of enhanced thermal and mechanical properties even when subjected to service temperatures as high as 700.degree. F. are described. They comprise (a) from 10 to 50 parts by weight of a thermoplastic polyimide resin prepared from 2,2-bis[4-(4-aminophenoxy)phenyl]hexafluoropropane and (b) from 90 to 50 parts by weight of continuous reinforcing fibers, the total of (a) and (b) being 100 parts by weight. Composites based on polyimide resin formed from 2,2-bis[4-(4-aminophenoxy)phenyl]hexafluoropropane and pyromellitic dianhydride and continuous carbon fibers retained at least about 50% of their room temperature shear strength after exposure to 700.degree. F. for a period of 16 hours in flowing air. Preferably, the thermoplastic polyimide resin is formed in situ in the composite material by thermal imidization of a corresponding amide-acid polymer prepared from 2,2-bis[4-(4-aminophenoxy)phenyl]hexafluoropropane.

Abstract: A method of manufacturing a stator for a variable resistor comprises a step of preparing a heat resistant film, a step of providing a resistor film on the heat resistant film, a step of obtaining a transfer sheet by treating the resistor film provided on the heat resistant film with a silane coupling agent, a step of preparing a forming die having a cavity for forming a substrate, a step of locating the transfer sheet in the forming die to expose at least a part of the resistor film in the cavity, a step of introducing resin into the cavity to form a substrate joined with at least a part of the resistor film and a step of separating the heat resistant film from the substrate to leave the resistor film.

Abstract: A multilayer molded article having improved appearance and feeling is produced by wetting a skin material including a fabric or a thermoplastic resin sheet as an outermost layer with at least one liquid material which is water, an aqueous solution, a volatile material which is liquid in an ordinary state, or a solution including the volatile material as a medium, supplying the wet skin material between male and female molds, supplying a thermoplastic resin melt between the molds and closing the molds to form the multilayer molded article including the integrally adhered skin material and the thermoplastic resin.

Abstract: A method of manufacturing a closed, hollow toroidal structure having a rigid internal annular plate includes treating one annular surface of the plate with a release coating, applying to the other annular surface of the plate an adhesion promoting coating and positioning the plate within a mold having a generally toroidal internal cavity. Next, a fluid conduit is juxtaposed partially within the internal cavity of the mold adjacent to the annular plate and partially outside the internal cavity of the mold. The mold cavity is then filled with an elastomer followed by curing under heat and pressure.

Abstract: For the production of articles comprising at least one layer of leather or simulated leather material and one layer of a synthetic resin connected to the first-mentioned layer in a shape-mating fashion, a mold cavity is filled with at least one layer of leather or a simulated leather material which later is in contact with at least one of the mold walls, and thereafter a synthetic resin, in the fluid condition or in a condition wherein it is rendered fluid, is introduced into the mold cavity. Finally, the synthetic resin is allowed to penetrate at least partially into the layer of leather or simulated leather material for the purpose of attaining an at least shape-mating bond therewith, and the peripheral edges of the layer of leather or simulated leather material are allowed to be covered by the synthetic resin.

Abstract: A composite unit including metal and resin wherein a metal member and a resin member are formed integrally. A seal film made of resin or rubber having high affinity to metal and characterized by flexibility is interposed between contact surfaces of the metal member and the resin member. The seal film is formed of a dispersion having as its main component a copolymer of alkyl methacrylate-alkyl acrylate. The metal member is formed of an Fe group material and the resin member is formed of polyamide resin. The seal film, after being coated on the outer surface of the metal member as a liquid material is embedded in the resin member by insert-molding resin. The metal member is formed to provide a bracket of a starter motor and the resin member to provide a brush holder. A seal member made of rubber is baked onto the contact surfaces between the bracket and the brush holder, and the seal member is embedded in the brush holder made of resin.

Abstract: The preformed assembly of a transparent sheet material and a gasket adhered to the periphery thereof, and the method for producing the assembly. Preferably, the sheet material is glass and the gasket is formed of a thermosetting polyurethane material. The material, curable to produce the gasket, is injected into a mold cavity and thence by controlling the attendant parameters, the autogeneous pressure incident to polymerization causes the material to be urged into intimate contact with mold cavity and the sheet material. After the material has been cured sufficiently, the resultant assembly is removed from the mold cavity.

Abstract: A tough and long-lasting adhesion of polyolefins to metal substrates is realized by means of a process comprising the following four process steps, carried out in succession:(a) mechanical cleaning of the metal surface;(b) treatment of the metal surface with a water-alcohol solution containing at least an alkoxysilane and boric acid;(c) thermal treatment of the surface coming from the (b) step;(d) treatment of the so-treated surface with a polyolefin based composition, containing zeolites and carbon black.

Abstract: A method of making a porous mold used in pressure casting for forming ceramic articles, which includes the steps of: removably attaching a plurality of apertured holding members in an array at a desired interval to the inner face of an upper case made of a rigid material; threading a flexible line into the apertures of the holding members in each row to hold it at a predetermined spacing from the inner face of the upper case, at least one of the two ends of the flexible line being extended to the outside of the upper case; casting slurry into a mold cavity which is defined between the upper case and a lower basic case joined to the former case to form a porous mold; removing the upper case from the porous mold after the slurry has cured, while leaving the holding members together with the flexible lines in the porous mold; and extracting the flexible lines from the porous mold to form channels in the porous mold.

Abstract: A molded article of methacrylic resin formed of a cross-linked polymer having at least part of the surface thereof coated with an abrasion resistant layer in contact with a basic molding material made of a methacrylic partially cross-linked gel thereby allowing the methacrylic partially cross-linked gel consequently produced to possess the property of retaining the polymerization in a stopped state, and simultaneously polymerizing said two materials held in mutual contact under a condition capable of imparting a desired shape to the combined materials.

Abstract: A method of making a mold used in a pressure slip casting process, including the steps of: preparing at least two porous bodies each defining a filter layer having a plurality of channels formed therein for allowing water and air to flow therethrough; placing a reinforcing iron frame and one of the porous bodies on a bottom board with a parting agent applied to its surface; applying a sealing resin to the surface of the other porous body opposite to a molding surface thereof and to a portion of the surface of the bottom board between the box and the porous body; filling up the space between one of the porous bodies and the reinforcing iron frame with a filler; and preparing a second part of the pressure mold.

Abstract: This invention relates to a process for the production of a molded article partially plated with metal as in the case of circuit boards, connectors, decorative articles, etc., where a catalyst such as palladium, gold, etc. is added after roughening of the surface of the primary molded article, and then, the molded article is inserted into the mold and molded so that the portions to be plated with metal are exposed outwardly, and after such molding, the secondary molded material is plated with metal.

Abstract: A process for producing a lining member, particularly a covering member, in which a fibrous material in single or multiple layer form is located with a binder preferably comprising a thermosettable polyester resin. Preferably a foam plate support layer is positioned at least on one side of the fibrous material which has been coated with a binder and such is preferably covered with a non-woven fabric layer. The assembly is compressed in a molding press. A ultrafine glass fiber non-woven fabric is used as the fibrous material layer.

Abstract: A process for the production of a molded article such as a circuit board and the like includes applying catalyst such as palladium, gold, etc. to a primary molded article after roughening of its surfaces, then, after such pre-treatment, the primary molded article is set into a mold to form a secondary molded article covered with cover material only leaving a portion to be subjected to metal plating, and then the secondary molded article is removed from the mold and subjected to metal plating, and finally the cover material is removed after metal plating.

Abstract: In forming an electrophoretic gel, various defects can be induced by the shrinkage that generally accompanies polymerization. These defects can include pulling away from a vessel wall or voids or bubbles forming within the gel itself. Prior to polymerization, a monomer can be compressed to a density at least equal to that of the expected density of the final gel, which then is substantially free of such shrinkage defects. The disclosed method is readily generalizable to other situations to produce polymers substantially free of defects due to shrinkage.

Abstract: A process (I), for producing a pressure-sensitive electroconductive sheet by (A), forming conductive circuits or electrodes in a flexible porous substrate and (B), applying, followed by curing a pressure-sensitive conductive paste to either or both sides of the substrate to form a pressure-sensitive conductive layer; and a process (II) for producing a pressure-sensitive electroconductive sheet by (A), forming conductive circuits or electrodes in a flexible porous subhstrate, (B), subsequently applying, followed by curing, a pressure-sensitive conductive paste to either side of the substrate to form a pressure-sensitive conductive layer, and (C), applying, followed by curing, insulating silicone rubber to the side of the substrate on which the pressure-sensitive conductive layer is not formed to form an insulating silicone rubber layer.

Abstract: A method of continuous molding a rod-like product includes forming an uncured rod-like molding by passing reinforcing fibers impregnated with uncured thermosetting resin through a squeezing die having a predetermined shape. Molten thermoplastic fluororesin is extruded in a ring shape to enclose the rod-like molding. A sheathing layer of the thermoplastic resin is formed by causing the thermoplastic resin to come into contact with the outer periphery of the uncured rod-like molding and by cooling and solidifying the thermoplastic resin. The uncured rod-like molding and the sheathing layer are introduced into a heated tank thereby hardening the thermosetting resin. The sheathing layer is stripped from the molding to form a rod-like product having a surface of fiber reinforced thermosetting resin.

Abstract: A rigid, non-metallic laminate suitable as a fire barrier, made by impregnating a layer of non-metallic fibers other than glass fibers with a resin, coating glass fibers with a refractory aluminum silicate to form a sheath, superimposing a layer of the thus alumina silicate coated glass fibers on the resin impregnated layer of non-metallic fibers and then subjecting the resulting laminate simultaneously to heat and pressure to squeeze resin from the non-metallic fibers into the interstices of the alumina silicate coated glass fibers and to cure the resin binder. A rigid multi-layer laminate in a common resin binder useful as a fire resistant panel or duct for a gas turbine engine results.

Abstract: The method comprises placing upper and lower stacks of unimpregnated fibrous reinforcement plies having a core of preimpregnated fibrous reinforcement plies therebetween in a mold and injecting chemically activated resin to impregnate the upper and lower stacks of unimpregnated fibrous reinforcement plies and initiate curing of heat-activatable resin of the core, and removing the molded part from the mold after curing and cooling of the part.

Abstract: A roving laid flat of unitary metal, mineral or synthetic filaments is treated with a powder, whose grain size is equal to the diameter of the filaments, of a plastic material chosen either from the group of thermosetting polyers including the epoxides, the phenolics, the polyesters with terminal groups --COOH, the polyimides, the acrylics and the polyurethanes, or prepolymerized polyamides modified by diamines, polyolefins modified by maleic anhydride or acrylic acid, partially hydrolized EVA copolymers, the E-VA-maleic anhydride terpolymers and eva copolymers grafted by the acrylic radical, then the powder charged rovings are coated by a thermoplastic polymer, such as polyamides, copolyamides and linear polyesters, the material thus obtained being placed in a mold under pressure and at a temperature not exceeding 170.degree. C.

Abstract: Disclosed is a method of fabricating a prosthetic member (112) having personalized features of the patient, and being formed to provide an individualized fit to the patient's extremity (18). A rigid jacket (30, 32) is first formed around the uninsured foot (10) and the amputated extremity (18). The limb characteristics are impressed into an alginate (44) lining within the jackets (30, 32). A stone material poured into the alginate lining (44) forms stone models (48, 50) of the patient's limbs. A wax preliminary model (64) is scuplted in the likeness of the stone foot model (48) and used to form final stone mold halves (100, 102). The contour of the stone extremity model (50) is adjusted according to the tissue texture of the patient to provide an individualized fit. A gelatinous silicone is injected inside the final mold (100, 102) and allowed to form around the extremity model (50) to thereby provide the body of the prosthetic member (112) and the conformal sleeve (132 ).

Abstract: A process for the production of a safety pane comprising a sheet of glass and at least one polyurethane-based layer having energy-absorbent properties. The polyurethane-based layer having energy-absorbent properties is formed directly on the sheet of glass by the reactive injection, under a pressure between 2 and 10 bars, between said sheet of glass and a rigid countermold, of a reactive mixture of an isocyanate component having a viscosity under 5000 centipoises at 40 degrees C. and a polyalcohol component, with the isocyanate component containing at least one aliphatic or cycloaliphatic diisocyanate, or a prepolymer of these isocyanates, with the polyalcohol component containing at least one long difunctional polyalcohol having a molecular mass between 500 and 4000 and at least one short diol as a chain extending agent.

Abstract: A method of forming a fiber reinforced synthetic resin rod-like molding including a rod-like core portion having at least in the outer portion thereof a reinforcing fiber bundle integrally adhered together by a thermosetting resin and a thermoplastic resin layer coating the core portion is disclosed. The outer surface portion of the core portion and the inner surface portion of the thermoplastic resin layer are integrally adhered together due to an anchor effect generated by contacting between the thermosetting resin and the thermoplastic resin in a semifluid state under pressure.

Abstract: A method for bonding silicone rubber to a metal member is shown in which the metal member is first treated by heating the metal member to a temperature and for a time sufficient to form an oxide layer on the outer surface of the metal member. The treated metal member is then contacted with an uncured silicone rubber composition, and the silicone rubber composition is cured to bond the treated metal member to the silicone rubber composition.

Abstract: A polyamino-bis-maleimide prepolymer solution obtained by the reaction of 1 mol of N,N'-4,4'-diphenyl methane-bis-maleimide with 0.25 to 0.4 mol of 4,4'-diaminodiphenyl methane in an alkyleneglycol monoalkyl ether as a solvent at elevated temperatures. This solution can be impregnated with a substrate to form a prepreg. The prepreg can be laminated to form heat resistant laminate.

Abstract: A method of preparing a composite of polyurethane bonded to the surface of a cured rubber substrate and the resulting composite. The method is comprised of first applying to a cleaned, cured rubber surface a coating of methylmethacrylate-natural rubber graft polymer and then applying a liquid polyurethane reaction mixture which is cured to form the resultant composite. The invention is particularly directed to the preparation of a tire comprised of a polyurethane carcass applied to a cured rubber tread and to a tire comprised of a polyurethane tread applied to a cured rubber carcass.

Abstract: A method of molding the insulating covering of an organic electrical insulator comprising a long central rod (3) having end fittings (5, 6). Retractable supports (11, 12, 21, 22) are disposed at regular intervals along an injection mold for the covering. The covering is injected, and at the end of injection, prior to vulcanization, the supports are retracted. The voids left in the mold (1, 2) by the supports are instantly filled by the injected material. Protective sleeves (24, 25) are interposed between the rod and the said supports.

Abstract: High strength, flexible compositions with improved mechanical properties at elevated temperatures for wire insulation coatings and other shaped articles used in hostile environments are disclosed, consisting of a high temperature fluorocarbon polymer, such as an ethylene-tetrafluoroethylene copolymer or the like, and from about 1% wt. to about 50% wt. of a polyvinylidene fluoride compound.

Abstract: A process for preparing an iodine stainable polyester polarizer film which comprises:(a) extruding a moving molten web of polyester film; and(b) quenching said moving web to solidify it in a substantially amorphous form; and(c) applying an anchor coating to at least a portion of the surface of said film wherein said anchor coating improves adhesion of polyvinyl alcohol to polyester film; and(d) applying a coating of a dispersed aqueous composition of polyvinyl alcohol to at least a portion of the surface of said film; and(e) stretching said moving web in a direction transverse to the direction of motion while heating said web at a temperature of from about its glass transition temperature to about 160.degree. C.; and(f) crystallizing said moving web by heating it to a temperature in the range of 130.degree. C. to 240.degree. C. without stretching said web; and(g) cooling said web to substantially ambient atmospheric temperature.

Abstract: A process for manufacturing a precast composite structure of a matrix of cured carbon fiber reinforced concrete and at least one ferrous metallic member at least partly buried in said matrix, by forming an insulating layer of an electric resistance of at least about 100 ohms at least on that surface of the ferrous metallic member, which will otherwise be brought in contact with a concrete mix, placing the metallic member in position in a mold, pouring into the mold a concrete mix containing 0.2 to 10% by volume of carbon fiber so that said metallic member may be at least partly buried in said concrete mix, partly curing the structure until it becomes self-supporting, de-molding the partly cured structure, and fully curing the structure in an autoclave at a temperature between 100.degree. C. and 215.degree. C.

Abstract: Injection molding a tread on an annular tire casing (44) positioned in a mold (10') by introducing a fluid molding compound (76',78') at high pressures and high temperatures into a tread molding space (105) through runner passages (114) extending from an edge (116) to a centerplane (20'--20') of the mold (10') and having gates (118) opening into the tread molding space (105). Alternatively the runner passages (56,58) may be defined by annular runner surfaces (60,62,64,66) in communication with the tread molding space (48) through annular gates (52,54). The fluid molding compound (76,78) may be ejected from annular transfer recesses (68,70) in the mold (10) by squeeze rings (84,86) movable into the transfer recesses (68,70) to introduce the fluid molding compound (76,78) into the runner passages (56,58).

Abstract: The disclosed process for making cast vegetable/mineral structural products having flame retardant properties utilize a major volume portion of ligneus plant fragments such as soft and hardwoods, sugarcane, cereal and fiber plant stalks, and a minor volume proportion of a mineral binder deposit comprised of magnesium or calcium oxyphosphates and inert filler particles. Fragments having thickness ranging from 0.3 mm to 8 mm including chips, shavings, strips, strands, fibre bundles, slivers, fibres and peeled and sawn veneer sheets, have applied to their surfaces an aqueous solution of ammonium polyphosphate or soluble acid phosphate salt supplying from 0.15 to 0.40 parts of P.sub.2 O.sub.5 as phosphate ion per part of fragments by weight, and particulate cement solids comprised of MgO or CaO or Mg(OH).sub.2 or Ca(OH).sub.2 or MgCO.sub.3 or CaCO.sub.3 ranging from 0.25 to 1.0 part per part of fragment, and from 0.01 to 0.