Abstract: The turn-up portion (217) of the carcass ply in the bead portion (219) of a pneumatic tire is interposed between the bead core (213) and a clamping member (231). The clamping member (231) comprises a heat shrinkable material that secures the turn-up in a desired location.

Abstract: A shaft connection (10) for rapid mounting and dismounting of a tire building drum by rotating a clamping ring (38) on a sleeve member (20) of a main shaft (14) around an end piece (24) of a drum shaft (12) positioned in the sleeve member (20) to engage or disengage overlapping lugs (42,44) on the clamping ring (38) and end piece (24). Screw members (56,58) connect the clamping ring (38) to a segmental ring (54) in a circumferential slot (68) in the sleeve member (20) for rotating the clamping ring (38). Resilient means (60) are associated with at least some of the screw members (56) and biasing the clamping ring (38) and outer lugs (42) against the inner lugs (44) of the end piece (24) to provide a tight fit between the sleeve member (20) and end piece (24). A central shaft (104) has a sliding connection 112' between a retractable inboard section (116) with a sliding connection (112') with an outboard section (114) for engagement after mounting of the sleeve member (20) over the end piece (24).

Abstract: This invention is directed to the preparation of polymerizable monomers that are prepared from 1-(1-isocyanato-1-methylethyl)-3-(1-methylethenyl) benzene (m-TMI) and 1-(1-isocyanato-1-methylethyl)-4-(1-methylethenyl) benzene (p-TMI). The monomers prepared from m- and p-TMI can contain numerous chemical moieties, and when polymerized, produce polymers that have chemically bonded to the polymeric backbone the functional moiety. More specifically, these TMI derived monomers may contain chain breaking antioxidant moieties, peroxide decomposing antioxidant moieties, ultraviolet stabilizing moieties, triplet quenching moieties, and other chemical moieties that are useful in polymers.

Abstract: High molecular weight polyester resins such as polyethylene terephthalate, are sometimes produced from low molecular weight polyester prepolymers having the same composition by solid state polymerization. The low molecular weight polyester prepolymers which are used in such solid state polymerizations are normally prepared by conventional melt polymerizations and are generally in the form of pellets or chips. Solid state polymerization rates can be greatly improved by utilizing polyester prepolymers which are in the form of porous pills. By utilizing polyester prepolymers that are in the form of porous pills, higher molecular weights can be achieved after shorter solid state polymerization times.This invention relates to an improved process for solid state polymerizing porous pills which are made by compacting fine fibers of the polyester prepolymer.

Abstract: This invention is concerned with the prevention of gel formation in polymers. More specifically, this invention is directed to a unique combination of materials that greatly lessens the formation of gel in elastomers during processing and storage. The combination comprises a hindered phenolic antioxidant and an alkylated phenol/primary mercaptan/formaldehyde reaction product.

Abstract: Metals from Groups I and II and organometallic compounds thereof can be used to catalyze the polymerization of diene monomers into polymers. The polymers formed in such polymerizations are terminated with the metal used to catalyze the polymerization and are sometimes referred to as living polymers. Very useful blends of such polymers can be made by utilizing the process of the present invention.

Abstract: Condensation polymers of high molecular weight, such as polyesters, polyureas, and polyamides, are usually prepared at temperatures of 200.degree. C. or greater. However, by utilizing the catalyst systems of the present invention, condensation polymers can be synthesized at much lower temperatures. The polycondensation catalyst systems of the present invention are particularly useful for synthesizing aliphatic polyesters, such as polyethylene terephthalate, from dicarboxylic acids and aliphatic glycols. The present invention more specifically discloses a process for the synthesis of an aliphatic polyester comprising polymerizing at least one dicarboxylic acid with at least one aliphatic glycol in the presence of (1) at least one phosphorus containing compound which contains at least one trivalent or pentavalent phosphorus atom which is bonded directly to at least one phenyl group, (2) an acid acceptor, and (3) at least one halogenated organic compound.

Abstract: A pneumatic tire having gum strips (19,21) for encapsulation of the cut edge of a cord reinforced ply (14), in particular a carcass ply. The gum strips are formed from an elastomeric compound having physical properties such that its 300% Modulus (ASTM D412) is comprised between 5 and 7 MPa and its Shore A Hardness (ASTM D1415) is comprised between 55 and 65. It has been found that such gum strips when used in the bead portion (11) of a tire to encapsulate the ply end (18), improve the durability of the tire.

Abstract: It has been determined that certain rubbery polymers having multiple glass transition temperatures can be utilized in making tires which have improved rolling resistance, improved wet skid resistance, and outstanding tread wear. These rubbery polymers are derived from at least one conjugated diolefin monomer, have a first glass transition temperature which is between -110.degree. C. and -20.degree. C. and have a second glass transition temperature which is between -50.degree. C. and 0.degree. C. These rubber polymers can be homopolymers of conjugated diolefin monomers, copolymers of more than one conjugated diolefin monomer, or copolymers derived from at least one conjugated diolefin monomer and at least one vinyl aromatic monomer.

Abstract: There is disclosed compounds of the structural formula: ##STR1## wherein X is a radical of the structural formula:--CH.sub.2 --CH.sub.2 --NH--CH.sub.2 --Ch.sub.2 --.sub.yand y is 0,1,2 or 3; which when combined with a nonhalogenated vulcanizable diene containing elastomer such as polybutadiene, polyisoprene, styrene/butadiene copolymers, terpolymers of acrylonitrile butadiene and styrene and blends thereof accelerate the rate of vulcanization without detrimentally impacting the processing safety of the rubber. These compounds either in free form structural formula (I) or as preformed complexes with zinc structural formula (II) in the plus 2 valence state offer significantly enhanced rates of cure and excellent final physical properties without a significant loss of processing safety. The preformed nonhalogeneated zinc complexes (II) may be added to sulfur vulcanizable rubbers at levels that maintain typical levels of zinc in the rubber compound.

Abstract: A hydraulically damped anti-vibration mount has a flexible diaphragm, an outer metal casing, an annular rubber spring and an inner metal portion, together defining a cavity filled with a fluid. A damper plate divides the cavity into an upper chamber and a lower chamber which are in fluid communication through a damper channel located within the damper plate. A cup-shaped bumper attached to the inner metal portion and extending axially inward into the upper chamber has a radially outwardly extending flange located at an end distal to the inner metal portion. A flexible flap in the shape of an "h" or a wishbone extends radially outwardly from the flange toward the outer metal casing to within a clearance of about 1 mm to about 6 mm to inhibit the dynamic rate of the mount.

Abstract: Solution or lacquer adhesives are utilized in a wide variety of applications. Such adhesives are particularly useful because they can be easily applied to a substrate. This invention relates to a copolyester which is particularly useful as an adhesive which is comprised of repeat units which are derived from (a) diacid component which is comprised of (1) from 0 to 60 mole percent terephthalic acid and (2) from 40 to 100 mole percent of at least one aliphatic dicarboxylic acid containing from 4 to 12 carbon atoms; (b) a diol component which is comprised of (1) from 0 to 75 mole percent neopentyl glycol and (2) from 25 to 100 mole percent ethylene glycol; and (c) hydroxymethyl benzoic acid.

Abstract: Isophthalic acid is commonly utilized as a comonomer in the preparation of copolyester resins which are utilized as solution adhesives. Unfortunately, solutions of such resins frequently become hazy due to the presence of cyclic oligomers. This invention is based upon the unexpected discovery that the presence of protonic acids during the synthesis of the copolyester resins containing isophthalic acid utilizing conventional metallic catalysts results in solutions of the resins in organic solvents being virtually haze free.

Abstract: A radial ply pneumatic tire (10) has carcass plies (13,14,15) reinforced by cables comprising only yarns of aramid filaments, and belt plies (31-35) reinforced by cables comprising at least two yarns of aramid filaments and a core yarn consisting of at least one polyamide or polyester filament which have at least a partially oriented structure, said aramid yarns being adjacent to one another and twisted about said core yarn but not being twisted together with one another.

Abstract: Textile cables (10) used for reinforcing tires comprise a plurality of yarns (11, 12, 13) which each consist of a plurality of aramid filaments (14) and each yarn has a twist imparted thereto. The yarns (11, 12, 13) are twisted together with one another to form cables (10). The twist ratio and the twist multiplier of the cable are dependent upon the intended end use of the cable. If the cable (10) is to be used in a high flex application, such as a reinforcing element in a carcass ply of a tire, the twist ratio is in the range of 1.0 to 1.9, and the twist multiplier is in the range of 8 to 12. If the cable (10) is to be used as a reinforcing element in the tread reinforcing structure of a tire, where there is some flexing but strength is very important, the twist ratio is in the range of 1.0 to 3.0, and the twist multiplier is in the range of 5 to 7. A preferred spacing between the cables is also disclosed.

Abstract: The labor costs associated with manufacturing wooden articles often represent a substantial portion of the total cost of producing the wooden article. This invention discloses a polymeric composition which can be easily molded into articles which have physical properties which are very similar to those of wood. By utilizing the polymeric composition and techniques of this invention, it is possible to manufacture a wide variety of wood-like articles by molding at reduced costs. This invention specifically reveals a polymeric composition which can be molded into articles having wood-like physical properties which is comprised of (1) from about 80 to about 99 weight percent polyethylene terephthalate, (2) from about 1 to about 20 weight percent of a polycarbonate, and (3) from about 0.3 to about 2 weight percent of 5-phenyltetrazole. These polymeric compositions can be prepared utilizing scrap polyethylene terephthalate, such as recycled polyethylene terephthalate beverage bottles.

Abstract: A pneumatic tire (10) has adjacent carcass plies (13, 14, 15) which are reinforced by cables comprising aramid filaments. The amount of strength retained by the cables over a period of normal use of the tire is increased when for each pair of adjacent carcass plies: (a) the cables of the radially innermost of said carcass plies intersect the mid-circumferential plane (CP) of the tire at a first angle in the range of 75.degree. to 105.degree. and the cables of the radially outermost of said carcass plies intersect the mid-circumferential centerplane (CP) at a second angle in the range of 75.degree. to 105.degree.; (b) said second angle is nearer to 90.degree. than said first angle; and (c) the included angle between said first and second angles is not greater than 10.degree..