Abstract: Thermoplastic compositions are disclosed which are useful as backings for automotive carpets. The thermoplastic compositions contain a high filler content of at least 60 percent by weight, about 5 to 25 percent by weight of an ethylene homopolymer or copolymer, about 1 to 10 percent by weight of a non-vulcanized elastomeric resin and about 1 to 15 percent by weight of a plasticizer. Preferably a low viscosity precoat of polyethylene or ethylene/vinyl acetate copolymer is applied to the carpet prior to the application of the thermoplastic backing. The backed automotive carpet is moldable, withstands both high and low temperatures, possesses outstanding sound absorbing properties and can be produced economically.

Abstract: Thermoplastic compositions are disclosed which are useful as backings for automotive carpets. The thermoplastic compositions contain a high filler content of at least 60 percent by weight, about 5 to 25 percent by weight of an ethylene homopolymer or copolymer, about 1 to 10 percent by weight of a non-vulcanized elastomeric resin and about 1 to 15 percent by weight of a plasticizer. Preferably a low viscosity precoat of polyethylene or ethylene/vinyl acetate copolymer is applied to the carpet prior to the application of the thermoplastic backing. The backet automotive carpet is moldable, withstands both high and low temperatures, possesses outstanding sound absorbing properties and can be produced economically.

Abstract: Yarn is treated in air entangelemnt jet having a main passageway in which one or more multifilament yarns are entangled, a second passageway which intercepts the bottom of the main passageway at an acute angle and slants downward therefrom in the upstream direction and an air inlet which intercepts the bottom of the main passageway so that its axis intersects the axis of the main passageway at an angle of about 86.degree.-88.5.degree. with the point of intersection being not more than 0.20 inches from the downstream end of the main passageway. The air inlet duct slants downward from the main passageway in the downstream direction. A lip is provided which begins at or close to the bottom of the downstream end of the main passageway and extends in the downstream direction. A jet of air is introduced into the main passageway through the air inlet duct and strikes the upper wall thereof forming a plural vortex turbulent zone which entalges the yarns.

Abstract: This invention is directed to an improved apparatus in which a fluid jet texturing device is used to produce a composite novelty yarn having slubs of selectively varied size distributed with selectively varied spacing along the linear length of the yarn. The apparatus includes at least two feed rolls to serve to feed yarn to the texturing jet, one of said rolls being operable to feed yarn at a higher speed than the other roll or rolls. An actuator arm is provided having an idler roll at one end. The first yarn is directed into contact with a slower feed roll while a second yarn is directed into contact with the idler roll. The actuator arm is selectively moved so as to first press the second yarn against the relatively fast roll and then press this yarn into contact with a slower feed roll to thereby vary the speed at which the second yarn is fed into the texturing jet.

Abstract: A plurality of synthetic fibrous textile materials such as polymeric yarns and staple fibers are textured by a procedure which imparts a variety of spaced deformations in a random sequence. The fibrous textile materials are fed between two opposed pressure surfaces, one of which has a raised pattern of closely spaced pyramids while the other is made of a resilient material having a meshing pattern of pyramid shaped depressions. The textile material is maintained at an elevated temperature during its passage between the pressure surfaces and is then cooled to give a permanently textured product.

Abstract: Durable antistatic properties are imparted to fabrics of synthetic polymers such as nylon and polyester by forming on said fabric a water insoluble reaction product of a melamine formaldehyde resin with certain ethoxylated quaternary ammonium salts and amine compounds. A urea formaldehyde resin can optionally be included as a third component of the reaction product. In a preferred embodiment, the fabric having the reaction product thereon is washed with a solution containing an anionic surfactant.

Abstract: This invention is directed to the use as coupling agents or bonding agents for fibrous glass substrates of compounds of the formula ##STR1## wherein R at each occurrence is independently an alkyl group of 1 to 5 carbon atoms,X is chlorine or bromine,R.sub.1 is hydrogen, alkyl of 1 to 5 carbon atoms or ##STR2## and Z is selected from the group consisting of ##STR3## WHERE R.sub.2 at each occurrence is independently hydrogen or alkyl of 1 to 5 carbon atoms andP is an integer of 1 to 4, and ##STR4## WHERE M AND R ARE INTEGERS OF 1 TO 3,R.sub.2 has the meaning given above, andY is --S-- or --O--Laminates having excellent resistance to water exposure are obtained when glass substrates treated with the above coupling agents are impregnated with a thermosetting resin such as epoxy and polyester resins.

Abstract: This invention relates to a process for improving the soil release and wetting properties of a polyester textile material by applying thereto a limited amount of an aqueous solution containing about 0.5 to 2.5% by weight of sodium hydroxide and then contacting the textile material with steam while maintaining a moisture content of at least 35% to remove 0.4 to 2.5% by weight of the polyester. By using this procedure the amount of polyester removed is controlled by the limited amount of sodium hydroxide present while at the same time a substantially uniform product is obtained.

Abstract: A fly shuttle loom shuttle box is provided with a solid elastomer binder attached at both ends in place of a conventional pivoted, rigid-backed binder. In one modification there is attached to the end of the binder a pivoted extension which permits use of dagger fingers in the normal position on a loom. The greater force exerted by the binder results in improved shuttle deceleration when it enters the shuttle box. This also eliminates picker stick over throw when accelerating the shuttle, which permits, when in proper adjustment, in some cases elimination of picker stick loom side bumper and check strap without, of course, eliminating their useful functions. As there is a considerable amount of heat developed by the flexing of the solid elastomer, it is desirable to provide for ventilation in the form of a few relatively large holes in the elastomer near its center and adjacent to the leather face of the binder.

Abstract: A drive for a guide bar on a Raschel knitting machine to permit shogging across the full width of narrow fabrics. The drive is by cam, double lever linkage with adjustment slots and pins at at least two points on the levers. For maximum fabric width, for example significantly wider than 1.25 inches, there is also a minor modification of the guide bar supports themselves. These involve pins, and the pins are enough longer so that the bar can move a greater distance without interfering or striking other portions of the knitting machine.

Abstract: A cloth stuffing chamber or container, preferably a tube with entrance and exit portions, is provided with means for preventing backward movement of the cloth. This means is preferably in the form of a fixed ring at the beginning of the exit portion having around its inner surface at least several segments of wire which are slanted toward the exit portion of the tube. There is provided between the entrance and fixed ring a movable ring with wires or pins also slanting in the same exit direction, which ring is reciprocated by a drive, such as a cam and follower. Cloth is introduced into the entrance portion of the chamber and passes through the two rings, and as the movable ring reciprocates, its slanted wires move the cloth forward on the forward stroke and on the reverse stroke the slanted pins of the fixed ring prevent the cloth from moving backwards.

Abstract: Yarn is treated in an air entangling apparatus having a yarn introducing guide tube through which one or more yarns are fed, a central bore positioned so that the yarn guiding tube enters it at an angle, and an air jet blowing into the central bore substantially at right angles to the axis thereof. The central bore extends through the texturizing block, and the air jet causes air to leave at both ends of the bore. The yarn continues through the bore, leaving at the downstream end. Overfeed of the yarn is kept at a fairly low point, from a fraction of a percent to a maximum of about 10% and the air pressure is also moderately low, preferably from about 6 psig to 12 psig. At least one of the yarns used is a multifilament yarn and treatment with the present apparatus entangles or interlaces the filaments. If two or more yarns are employed, the product is a plied yarn.

Abstract: The present invention is an automatic bobbin changer for sewing machines of the lock stitch type having bobbin holders with holder pins and latches. A magazine of full bobbins and cases is positioned adjacent the sewing machine, and a cross slide is provided which is movable from a first position to a second. This slide is provided with two powerful magnets, preferably permanent magnets, which are spaced on the slide so that in one position one magnet is aligned with the sewing machine bobbin holder and the second is aligned with the full bobbin magazine. The two magnets are provided with actuators, preferably fluid operated actuators, which can move the magnets forward so that they contact, respectively, an empty casing in the sewing machine bobbin holder and a full bobbin and casing in the magazine. The two magnets then retract toward the slide and the slide moves to the second position.

Abstract: Yarn is treated in an air entangling apparatus having a yarn passageway through which one or more multifilament yarns are fed and an air inlet duct intercepting the bottom of said passageway at right angles, the longitudinal axis of the inlet duct passing through or close to the longitudinal axis of the yarn passageway. A jet of air is introduced into said passageway and strikes the upper wall thereof forming a plural vortex turbulent zone in the upper portion of the yarn passageway which entangles the multifilament yarns. An air outlet duct intercepts the top of the yarn passageway and serves to create an air flow which holds the yarn in the upper portion of the passageway. Yarn is fed into the passageway with a small degree of overfeed, generally from about 0.1 to 10%. A structure, such as a rod, extends into the yarn passageway and contacts the yarn fed therethrough. The resistance to yarn movement resulting from this contact creates yarn slack in the area of the turbulent zone.

Abstract: A multilayer floor covering is provided which is suitable for use as a playing surface of an athletic facility. The floor covering comprises a composite needlepunched material in which a fiber batt bottom layer is needled into a support layer so that a portion of the fiber batt protrudes through the top of the support layer, a layer of polyurethane elastomer adhered to the composite needlepunched material and a top wear coating of polyurethane adhered to the layer of urethane elastomer.

Abstract: A high temperature resistant filtration material is produced having outer layers of a nonwoven fabric made of fibers of an aromatic polyamide having repeating units of the formula ##SPC1##A first inner layer of nonwoven fabric made of glass fibers and a second inner layer woven from yarns of glass or said aromatic polyamide. The fibers of the layers are interentangled by needling to form an integral structure.