Abstract: A co-polymer composition for coating porous structural material includes a compatible surfactant resulting in a structural inter-bonding between the coating composition and the structural material. The co-polymer composition cured in a layer of unsupported foam has sufficient strength to be used as a substitute for comparably or larger sized layers of re-enforced concrete for conducting fluids while resisting compressive loads. A co-polymer foam composition for coating structural material cures to have an atmosphere-facing surface that is substantially impervious to corrosive substance penetration.

Abstract: Antiabrasion curved section made of reinforced curved plastic material and comprising in at least one of a lower portion and an upper portion in antiabrasion material. A plurality of antiabrasion sections are produced inside a profiled mold having a plurality of grooves in which is arranged the antiabrasion material of the lower faces. Reinforced filaments impregnated with a stabilizable resin are supplied to the mold and, finally, the antiabrasion material of the upper faces is applied. The mold is wound on a mandrel and the plastic material is stabilized before removing the mold sections which form a unitary assembly dividable particulary during the stranding of arm rings.

Abstract: The present invention relates to a food packaging bag comprising a water-resistant perforated sheet part which composes of at least a part of an outer layer of the bag, a moisture permeable waterproof film which is laminated by bonding in part to an inside of the perforated sheet part as an inner layer to form a moisture permeable waterproof part, and a waterproof sheet part which composes of the rest of the outer layer part. Further, when, if desired, an absorbent sheet layer is provided on at least a part of the inside of the waterproof sheet part, the functions of the moisture permeable waterproof film such as moisture permeability are scarcely impaired when the packed food is heat-cooked, and the moisture permeable waterproof film weak in strength is seldom broken by scraping distribution or bursting during cooking with heat.

Abstract: This invention provides a densified previously expanded PTFE article having remnants of a fibril and node structure and a process for producing the article. A PTFE shape is compressed through the application of heat and pressure while the shape itself is under a vacuum, thus forming the densified ePTFE article. The densified PTFE article exhibits increased flexural strength.A diaphragm containing the densified ePTFE article as one layer is also disclosed.

Abstract: In the heat-sensitive indicator herein disclosed, a colored heat-fusible substance 3 is accommodated in an inner hollow portion of a projection 1 which is formed from a film collapsible by application of an external pressure such as a finger-pressure. The opening of the hollow portion is sealed with a thin cover 9 collapsible through the application of the foregoing pressure. An An absorber 7 in which the colored heat-fusible substance 3 in the molten state can permeate is arranged outside the thin cover 9 of the hollow portion. The colored heat-fusible substance 3 is supported by a carrier 5 and accommodated in the interior of the hollow portion of the projection 1. A space in which the carrier is dropped when the thin cover 9 is broken through the application of a pressure is formed, behind the thin cover 9, by a hollow ring 11.

Abstract: Bonded yarn bundle, manufacture thereof and textile sheet materials obtainable therefrom.There is described a yarn bundle having a tenacity of at least 42 cN/tex, comprising at least one twisted multifilament yarn composed of a first synthetic polymer, for example polyethylene terephthalate, whose individual filaments have become bonded together over essentially the entire thread cross-section by the melting of a second thermoplastic synthetic polymer whose melting point is at least 10.degree. C. below the melting or decomposition point of the first synthetic polymer.The yarn bundles are notable for high strength, good flexural stiffness and good hydrolysis resistance and are usable in particular for manufacturing textile sheet materials for use in hot, moist environments, in particular for use as wire cloths for papermaking machines.

Abstract: Use as formaldehyde collectors of the products of formula ##STR1## in which R represents an acetoacetyl or 3,5-dioxo hexanoyl group, R.sub.1 represents a hydrogen atom or a methyl radical, m is equal to 1, 2, 3 or 4 and n is either equal to 1 when R.sub.1 represents a methyl radical or equal to 1, 2 or 3 when R.sub.1 represents a hydrogen atom, and finishing process for fabrics based on cellulose fibers using an aminoplastic resin containing formaldehyde in the free or combined state, using a product of formula (I) as the formaldehyde collector.

Abstract: A molding material is disclosed, comprising a film (A) coated on one surface with a thermosetting resin composition containing a hollow filler, a film (B) on which no resin composition is applied, and a reinforcing fiber layer positioned between the coated surface of film (A) and film (B), wherein the reinforcing fiber layer is impregnated with the liquid component of the resin composition coated on film (A). A piled material is also disclosed, comprising the two portions of the said molding material, wherein the respective molding materials are positioned on top of the other portion in a face-to-face relationship having their respective film (A) sides facing inwardly to each other, where the respective films (A) have been stripped off prior to positioning.

Abstract: The invention is to a non-woven fabric sheet for a storage battery separator. The sheet has an excellent property of holding electrolyte by using conjugate fibers having a specific sectional form. The sheet comprises an ethylene copolymer having a specific structure which can introduce a desirable amount of sulfo groups efficiently under mild reaction conditions. Conjugate fibers having a split sectional form include a first component and a second component having a radial arrangement. The conjugate fibers are obtained by forming an ethylene based random copolymer containing a unit represented by a formula --CH.sub.2 CH(COOH)--, with polypropylene. Subsequently, a non-woven fabric sheet of a thermally bonding type is obtained by mixing the conjugate fibers with polypropoylene fibers. Subsequently, a non-woven fabric sheet for a storage battery separator is obtained by sulfonating the non-woven fabric sheet using gas such as SO.sub.3 to form a unit of the formula --CH.sub.2 C(SO.sub.3 H)(COOH)--.

Abstract: Acrylic polymers having a minimum molecular weight of about 500,000, and preferably of about 1,500,000, are blended at levels of from 1 to 25% with thermoplastic resins to improve the melt rheology of the thermoplastic resins and facilitate blow molding, thermoforming, extrusion and similar processes.

Abstract: The dimension-stable impregnated polyester tire cord is at least 95% by weight polyethylene terephthalate and has an intrinsic viscosity of 0.70 dl/g to 0.89 dl/g for undrawn cord, a fineness of at least 1100 x 2 dtex, a dimension stability coefficient of at least 30'000 cN.sup.2 /tex.sup.2, a thermal shrinkage of about 0.8 percent measured at a temperature of 160.degree. C. with 0.1 cN/tex pre-stress and a permanent lengthening of less than 1.5 percent at a tire pressure of 2 bar and a temperature of 100.degree. C., so as to reduce shrinkage during vulcanization and in tires heated in operation and so as to provide a quieter running tire. The fatigue resistance of this polyester tire cord suffers a drop in tensile strength of less than 20 percent measured at 10.8 MC with 6 percent strain and 6 percent compression so that tires made from the polyester cord have a greater durability and increased life.

Abstract: Disclosed are fibers comprising a graft copolymer consisting of a propylene polymer material backbone having graft polymerized thereto an ethylenically unsaturated monomer(s) or a blend of at least two of said graft copolymers.

Abstract: Sandwich elements in the form of slabs, shells and the like, consisting of facings and a rigid polyurethane foam core can be joined together in an airtight and watertight manner when they are provided with edge profiles which are cast from casting materials forming flexible polyurethane foam and which have a groove and a tongue.

Abstract: A camouflage net made from a flame-retardant material includes a support material of polyester fibers in a perforated structure, which is provided with a coating of a flame-retardant polymer, that in turn is coated with infrared camouflage paint. The support material is a knitted fabric of polyester fibers into which metal fibers are inserted.

Abstract: A powder puff has a polyester pile fabric for applying cosmetics or the like to the skin.

Abstract: An oral pouch that is constructed of an orally safe natural rubber material that can be packed with any brand or flavor of loose moist snuff, by the individual user. The pouch is sized using scissors for maximum comfort and fit, and once inserted between the lower gum and lip, serves as a barrier between the tobacco product and the lip and gum area, therefore reducing the direct physical contact of the tobacco product against the gum and lip. Because the pouch is perforated, saliva flows through the pouch moistening the tobacco, creating the tobacco juice.

Abstract: Disclosed is a nonwoven textile material comprising fibers of a propylene polymer material blended with an olefin polymer material.

Abstract: The present invention provides a method for forming a coherent vermiculite film which can be performed on a continuous basis. An exemplary method comprises the steps of providing a non-flocculated dispersion of delaminated vermiculite platelets, providing a flexible release carrier having a surface operative for retaining thereupon a wet film of said dispersion and further operative for releasing the vermiculite film when dried, applying a wet vermiculite film to the moving carrier, and drying the vermiculite film, whereby the dried film is releasable from the carrier. The flexible release carrier preferably comprises paper having a release agent coating thereon. The invention also provides a flexible carrier-supported releasable vermiculite film, a film made from an vermiculite-aziridine composition, a composition of vermiculite and an aziridine, and a composition of vermiculite and amine resulting from an aziridine.

Abstract: Undrawn preoriented polyester yarns containing 0.03 to 0.01% of fumed silica with a particle size of between 5 and 15 nm, exhibit a delay in crystallization.

Abstract: According to the present invention, there is provide a monofilament, based on the total weight of the monofilament composition, (a) from about 10 weight % to about 60 weight % of a functionalized polyphenylene ether, (b) from about 40 weight % to about 90 weight % of a polyamide, and (c) from about 1 weight % to about 30 weight % of a functionalized elastomeric polymer, and industrial conveyer belts fabricated therefrom.

Abstract: An electrical cable having a wire bundle core surrounded by a thermal protection sleeve, the thermal protection sleeve consisting of a sandwich structure of outer acrylic adhesive layer and a silicone foam core.

Abstract: An electrical cable having a wire bundle core surrounded by a thermal and chafe protection sleeve, the thermal and chafe protection sleeve consisting of a sandwich structure having an additional outer layer of fiberglass lacing tape and a fluorosilicone fuel resistant coating.

Abstract: Annularly ribbed tube comprises one or more coaxial co-extruded inner layers and a coaxial outer layer of thermoplastic material. The tube has sharply upstanding annular or helical ribs having a width which is small in comparison to distance between annular ribs or between turns of the helix. At least one of the inner layers of extrudate fills a hollow outer shell of each rib which is formed by the outer layer. An innermost layer may be a smooth inner skin or may have a smooth inner wall and another wall which bulges into the rib cavity.

Abstract: Fiber with unique elastic properties comprising copolymer, of ethylene and comonomer, having density in the range of about 0.86 to about 0.93 g/cm.sup.3, MWD in the range of about 2 to about 3.5, melt index in the range of about 4 to about 1000, and SDBI less than about 25.degree. C.

Abstract: Thermoplastic polymeric material in pelletized or chip form are initially coated with a wetting agent in a mixer, then a powdered phosphorescent pigment is added to the mixer and mixing continued until the pellets are substantially uniformly coated with phosphorescent powder. The coated polymeric material is then fed to an extruder where it is heated to form a melt and mixed to distribute the phosphorous material uniformly throughout the melt before being extruded to form phosphorescent textile fibers, filaments, yarns, tapes or fibrillated films having highly uniform phosphorescent properties.

Abstract: A pipe joining construction includes a tube, two or more extensions extended from the tube, a tube member coupled to each of the extensions so as to form a joint portion, an insert disposed in each of the tube members and the extensions and having an envelope and a foamable material disposed in the envelope, a covering having an outer layer wrapped around the joint portion and a foamable material disposed between the outer layer and the joint portion. When foamed, the foamable materials apply forces against the tube members and the extensions so as to solidly couple them together.

Abstract: The present invention relates to an abrasive article comprising:(a) a flexible substrate having a front side and a back side;(b) at least one layer of abrasive grains bonded to said front side of said substrate by means of a make coat;(c) optionally one or more additional coats selected from the group consisting of a size coat, a supersize coat, a saturant coat, a presize coat, and a backsize coat;wherein at least one of said make, size supersize, saturant, presize, and backsize coats comprises a maleimide binder. The invention also relates to a method of making the abrasive articles.

Abstract: An artificial soil made from thermoplastic resin foamed particles is disclosed, in which a plurality of thermoplastic resin foamed particles and a plurality of fine substances are bonded to each other by heat fusion of the thermoplastic resin foamed particles to form a porous structure. The artificial soil is excellent in not only air permeability, hydrophobic properties, and draining properties but also water retention and fertilizer retention.

Abstract: Provided are wrappings for foods comprising a laminated composite sheet which comprises an impermeable sheet, an absorbent fiber sheet and a hydrophobic fiber sheet, said hydrophobic fiber sheet having a water resistance of at least 5 cmH.sub.2 O and an air permeability of at least 10 c/cm.sup.2 /sec. Also provided are bags and boxed fabricated from the above wrappings.These wrappings are microwaveable and have heat insulation property.

Abstract: The invention relates to a preferably hollow metal stock for drawer sides, especially drawer sides, and to a method for the production of such hollow stock. The hollow material has a hollow space which is foam-filled, to improve the properties of the action of a drawer made from the stock by reducing the noise that occurs when a drawer is opened and closed. The strength of the stock is also improved and as is a drawer made from the stock.

Abstract: An ink roll made of a microporous thermoplastic structure impregnated with an ink has sufficient strength, toughness and flexibility to deliver ink to a transfer roll without substantial misting of the ink from the ink roll surface as the ink roll is driven by a drive roll at peripheral speeds of 200 ips or more. The microporous plastic structure of the roll may be formed from a blend of a first polymer having particles sizes in the range of 1 to 100 .mu.m, and a second polymer having particles sizes from more than 100 .mu.m to 600 .mu.m. The second polymer is selected to impart greater strength and abrasion resistance to the roll than the first polymer. Both of the first and second polymers may be copolymers of PVC and polyvinyl acetate. The second copolymer has more acetate groups than the first polymer, giving it significantly greater strength.

Abstract: A gas separating asymmetric membrane such as a gas separating asymmetric hollow fiber comprises an aromatic polyimide comprising recurring units of the formulae (I) and (II): ##STR1## wherein A.sup.1 is a tetravalent unit having a diphenylhexafluoropropane structure, A.sup.2 is a tetravalent unit having a benzene structure, and A.sup.3 is a divalent aromatic unit which is a unit derived from a sulfur atom-containing diamine such as diaminodibenzothiophene, diaminodiphenylenesulfone, diaminothioxanthene-5,5-dioxide or diaminothioxanthone-5,5-dioxide. The aromatic polyimide contains the recurring unit of the formula (I) in an amount of 40 to 90 molar % and the recurring unit of the formula (II) in an amount of 10 to 40 molar %. Further, a process for the preparation of the gas separating asymmetric hollow fiber membrane is also disclosed.

Abstract: A multilayer composite and an easily openable container produced by using the multilayer composite are provided. The multilayer composite comprises a surface layer of a polyolefin resin, an intermediate layer of a mixture of a polystyrenic resin with a thermoplastic elastomer or with a thermoplastic elastomer and a polyolefin resin, and a base layer of a polystyrenic resin, and the peeling strength between the intermediate layer and the base layer is larger than the peeling strength between the surface layer and the intermediate layer. The easily openable container produced by using the multilayer composite is capable of being sealed with a lid strongly while maintaining easy openability because the opening of the sealed container is performed utilizing the peeling between the surface layer and the intermediate layer.

Abstract: A foil for use in the vacuum packaging of an article comprises first and second foil layers, the second foil layer being a plastics matrix incorporating a volatile substance such that in use, after evacuation and closing of the package, the volatile substance slowly diffuses into the package, thereby exerting a beneficial influence on the article, for example protection against corrosion.

Abstract: Disclosed is a shaped article comprising a continuous oriented thermoplastic polymer matrix having dispersed therein microbeads of a polymer which are at least partially bordered by void space, the microbeads being present in an amount of about 5-50% weight based on the weight of said oriented thermoplastic, said void space occupying about 2-60% by volume of said shaped article. Preferably, the microbeads are cross-linked to an extent they will be resilient and elastic at the orientation temperature, and are coated with a slip agent. The shaped article is preferably in the form of a sheet, fibers, or other molded article, and preferably has a relatively low specific gravity and whiteness.

Abstract: An apparatus and method for fabricating accurate, numerically defined curved surfaces and volumes comprising a skeleton framework having a plurality of bulkheads fixed in spaced relationship with each other, each of the bulkheads having an equal number of boreholes passing through the outer perimeter thereof so as to provide a set of selected boreholes. A flexible spline having a memory is passed through each set of mating boreholes and is secured with the boreholes after the splines have reached their static states. The resultant framework is encased in a cured polymer and the polymer is trimmed and faired between the outer edges of the splines.

Abstract: Syndiotactic polypropylene fibers from syndiotactic polypropylene having a melting point of from 100.degree. C. to 160.degree. C. and desirably a polymer having blocks of repeating racemic dyads connected predominantly by units having a meso triad or a meso dyad and methods of making such fibers. Fabrics, yarns and tows made from these fibers are useful in the production of diapers, hospital gowns, and the like.

Abstract: A tubular multilayer film including at least two, biaxially stretched tubular layers each formed of a polypropylene resin, wherein the innermost layer contains spherical antiblocking agent particles having an average particle size of 0.2 to 5 .mu.m in an amount of 0.1 to 0.7% by weight, and the outermost layer is free of the spherical antiblocking agent particles is disclosed. The multilayer film may be prepared by biaxially stretching a multilayer tubular raw sheet having an innermost polypropylene layer containing spherical antiblocking agent particles and an outermost polypropylene layer free of such antiblocking agent particles.

Abstract: Extended polymer compositions are provided which comprise polymers containing pendant functional groups of the formula: ##STR1## extended, i.e. admixed with a chalcogenide having the empirical formula ##STR2## wherein R.sub.1 is a divalent organic radical at least 3 atoms in length, X is organoacyl or cyano, A is a chalcogen, each of R.sub.9 and R.sub.10 is independently selected from hydrogen, NR.sub.11 R.sub.12, NR.sub.13 and monovalent organic radicals, at least one of R.sub.9 and R.sub.10 being NR.sub.11 R.sub.12 or NR.sub.13, each of R.sub.11 and R.sub.12 is independently selected from hydrogen and monovalent organic radicals, and R.sub.13 is a divalent organic radical. These compositions can be extended with significant proportions of the described chalcogenides with corresponding reductions in polymer concentration without significant loss of physical properties. The resulting combinations are particularly useful as binders and coatings.

Abstract: A concrete fluid structure deteriorated to the condition of removal of substance of the concrete by sulfuric acids and like corrosive material in contact therewith is restored by a substratum of epoxy foam, polyurethane foam, or a combination thereof having a relatively thin layer of polyvinyl chloride or polyethylene bonded to the outward facing surface of the foam and bonding the layer to the structure. A method for forming the substratum in the location of the deteriorated structure is described.

Abstract: A three-dimensional woven structure which exhibits isotropic mechanical and structural properties by incorporating the highest possible degree of interweavement of its fibers or rods comprising a plurality of adjacent sets of lateral rods or fibers, a plurality of adjacent sets of transverse rods or fibers and a plurality of adjacent sets of vertical rods or fibers. These lateral, transverse and vertical sets of fibers or rods come together substantially mutually perpendicularly to one another at a plurality of intersection nodes with each intersection node being formed in such a fashion that the lateral, transverse and vertical rods or fibers are fully interwoven with one another.

Abstract: An improvement is proposed in the assemblage of a cover-packing bult-up body for a magnetic hard-disc unit to be freed from the troubles caused by dusts or contamination of the gap space between the magnetic recording disc and the magnetic head as well as by the poor vibration-damping characteristics of the rubber packing between the covering member and the body of the casing. The improvement comprises, instead of using a pre-shaped rubber packing, the built-up body is assembled by using a curable liquid silicone rubber-based composition filled with fine hollow microspheres to form a packing on the surface of the covering member by the in situ curing of the composition applied thereto so that the rubbery packing layer has a spongy structure exhibiting good vibration-damping characteristics.

Abstract: The present invention provides a liquid sorbent article comprising at least two contiguous layers formed from a single sheet, said layers being joined at a fold in said sheet and being intermittently releasably bonded together.

Abstract: This invention relates to a packing used in sealing two members. As the packing material, by using a material having the surface of a flexible graphite sheet cut to a width of less than 5 mm with fibers, or a material prepared by laminating a flexible graphite sheet cut to a width of less than 5 mm with at least one of reinforcing fiber or foil material, and covering its surface with fibers, or a material prepared by impregnating a principal component composed of flexible graphite particles with at least one of short fiber, rubber, resin or lubricant to form a bar-like structure and covering its surface with fibers, a packing material which can be either twisted or braided is obtained. By fabricating a packing by using any one of such packing materials, a cord-like packing is obtained without having to produce many packings matched to with the dimensions of the members.

Abstract: High tensile and torque strength threads are provided on a thermoplastic composite rod by first cutting a thread at a relatively short pitch into an end of the rod. Thermoplastic composite tape is then wound in tight conformance to the cut thread so that the fibers of the tape align with the desired helix angle of the thread to be created. The rod and the tape are heated at their junction to above melt temperatures during the winding process to increase adhesion between the rod and the tape. While the end of the rod and the wound tape are at above melt temperatures, the end of the rod and the tape are compressed in a die conforming to the desired ultimate configuration of the thread. The tape and rod are then permitted to cool until sufficiently hardened to permit release of the compressing die without deformation of the threaded end of the tape. The result is a thermoplastic composite rod having high tensile and torque strength at its threaded end.

Abstract: According to the present invention, there is provide a monofilament, based on the total weight of the monofilament composition, (a) from about 70 weight % to about 30 weight % of a polyphenylene ether, (b) from about 30 weight % to about 70 weight % of a polyamide, (c) from about 0.1 weight % to about 2.0 weight % of a compatibilizer compound for (a) and (b), and (d) from about 1 weight % to about 35 weight % of a functionalized olefinic elastomer, and industrial conveyer belts fabricated therefrom.

Abstract: A high temperature, high pressure resistant packing (e.g., for the packing gland of a valve stem) has a core of density 1.3-1.6 gm/cc that includes a plurality of strands, each strand including a flexible graphite tape, longitudinally corrugated and folded into at least two longitudinally extending partially superimposed layers. Preferable, each strand is overknitted with a reinforcing wire, the strands in the core are braided, and a jacket, which includes a carbide fiber, an inorganic fiber, and a phenolic fiber, is disposed about the core.

Abstract: An aquatic antifouling composition characterized by containing as effective antifouling component a metal salt of hexamethylenedithiocarbamic acid represented by the formula below: ##STR1## (where M is a divalent or trivalent metal; n is 2 or 3.

Abstract: The present invention provides a plastic packaging for fresh fruit, vegetables and cut flowers. The film comprises 1 to 10% Activated Earth incorporated in polyethylene. The Activated Earth modifies the gas permeabilities of the film so that it interacts with the metabolic activity of the fresh produce modifying the atmosphere around it. It does this by modifying the permeability of the film to the various atmospheric gases. The Activated Earth is characterized by its predominantly porous aluminium/silicate composition, a pore diameter of 50,000 Angstroms, a specific surface of 0.6 m.sup.2 /gm and a specific gravity of 2.3.

Abstract: Disclosed is a shaped article comprising a continuous oriented polymer matrix having dispersed therein microbeads of a polymer which are at least partially boredered by void space, the microbeads being present in an amount of about 5-50% by weight based on the weight of said oriented polymer, said void space occupying about 2-60% by volume of said shaped article. Preferably, the microbeads are cross-linked to an extent they will be resilient and elastic at the orientation temperature, and are coated with a slip agent. The shaped article is preferably in the form of a sheet, fibers, or other molded article, preferably has a relatively low specific gravity and whiteness.