Abstract: This invention is comprised of a thermoplastic polyurethane elastomer fiber obtained by melt spinning a polyurethane having a rebound of 60% or greater and a isocyanate-terminated polyether or polyester additive. The elastic fibers have low shrinkage, high heat resistance, low tensile set, and high elongation.

Abstract: A method of making oleochemical oil-based polyols by mixing an acid activated or acid leached clay, an epoxidized oleochemical oil, alcohol, and acid activated or acid leached clay so the epoxidized oleochemical oil reacts with said alcohol to form a oleochemical oil-based polyol, filtering out said clay, stripping off any excess alcohol, and recovering the oleochemical oil-based polyol.

Abstract: A means to improve thermoplastic formulations in terms of the physical properties they exhibit, such as impact strength and ductility, have been developed. The addition of a block chlorinated polyolefin (b-CPO) to polymer blends in which at least one component comprises a halogen-free hydrogen-bond acceptor polymer, achieves the desired enhancement. The synergetic effect of the b-CPO with the selected polymer blend is demonstrated. Blends of thermoplastic polyurethanes, polycarbonates, copolyesters and copolyamides with a blend partner such as thermoplastic polyolefins, styrenic copolymers such as styrene acrylonitrile copolymers, styrene ethylene butylene styrene copolymers, high rubber graft copolymers such as acrylonitrile butadiene styrene copolymers, methylmethacrylate butadiene styrene copolymers and the b-CPO have enhanced ductility and impact resistance. The addition of 0.5 wt.

Abstract: Flame retardant thermoplastic polyurethane (TPU) compositions are disclosed having melamine cyanurate as the only organic flame retardant additive. Processes are disclosed to make the TPU compositions and to make wire and cable constructions having the TPU compositions as the jacket of the wire and cable constructions. The TPU compositions have excellent physical properties and are capable of passing both the UL-1581 section 1080 and UL-1581 section 1080, subject 758, section G tests for wire and cable constructions. The levels of melamine cyanurate used in the TPU compositions are from about 28 to about 50 weight percent of the TPU composition. The ultimate tensile strength of the TPU composition is greater than 1500 psi and preferably greater than 2900 psi. The TPU compositions also have both a low LOI % and a low peak rate of heat release.

Abstract: The present invention relates to a thermoplastic, multi-layer, electrostatic discharging, laminate comprised of at least one outer layer that is permanent static dissipative and non-contaminating, and a core or base layer that is conductive. The outer layer has a surface resistivity of from about 1.0×105 to about 1.0×1012 Ohm/sq, and the core layer has a surface resistivity of from about 1.0×101 to about 1.0×1011 Ohm/sq.

Abstract: Thermoplastic polyurethane compositions are prepared from polyols having high secondary hydroxyl content, diisocyanates, chain extenders and catalysts. The resulting polyurethanes have high molecular weight and can be prepared by a one-shot process wherein the reactants and any additional desired components are brought together and reacted simultaneously or substantially simultaneously.

Abstract: The present invention relates to a halogen containing polymer compound containing a modified zeolite stabilizer. The modified zeolite stabilizer has a small particle diameter, narrow particle size distribution and less than 10 weight percent water. The modified zeolite stabilizer is formed by shock annealing, coating or a combination of the two methods.

Abstract: Talc is combined with polyurethane to facilitate crystallization of a polyurethane composition, particularly a polyester-based polyurethane composition. The addition of talc can allow for more rapid formation of products by, for example, injection molding, compression molding, extrusion, and film formation techniques.

Abstract: A composition and method purge resin deposits from the inner surfaces of polymer processing machinery upon the flow of a stream of resin through the polymer processing machinery. The composition includes a mixture of purging agents separate from the resin that are poured into the stream of resin as an additive. The purging agents include a blowing agent to induce foaming of the stream of resin and an abrasive to scrub the resin deposits from the inner surfaces of the polymer processing machinery. The purging agents further include a surfactant to promote the flow of the stream of resin along the inner surfaces of polymer processing machinery. A binder binds the purging agents together in the mixture. The method includes feeding a mixture comprised of a blowing agent, an abrasive, a surfactant, and a binder into the stream of resin entering the polymer processing equipment.

Abstract: A plastic pallet (10) having good load bearing construction and held together without mechanical fasteners, includes deck boards (30). The deck boards include ridges (24) on an upper side (32) and a lower side (34) thereof. Deck boards are positioned transversely on stringers (12) and joined thereto by either an adhesive or thermoplastic welding processes. The stringers and deck boards may be provided with end caps (26, 42) which seal interior areas of the stringers and deck boards and prevent tearing thereof. The stringers and deck boards have interior reinforcement ribs (22,40). The cross sectional profiles of the stringers, deck boards, and end caps provide a cost effective and light weight pallet. Openings which extend between the stringers allow for either two way fork entry and/or four way fork entry. The stringers and deck boards provide flexibility in constructing pallets of various designs. The plastic pallet preferably is highly durable and fully recyclable.

Abstract: Chlorinated polyvinyl chloride (CPVC) is prepared from polyvinyl chloride (PVC). When PVC is made utilizing polyvinyl alcohol, the low molecular weight CPVC compound so prepared is colored. A low molecular weight CPVC compound prepared from PVC that was made in the presence of a cellulose ether instead of polyvinyl alcohol resulted in a very low color compound having a DE of O by definition. However, a CPVC compound prepared from PVC made in the presence of polyvinyl alcohol resulted in a relatively high color (DE 18.51). During the polymerization of vinyl chloride, polyvinyl alcohol is replaced with the hydroxypropylmethyl cellulose ether having a methoxyl substitution of 15-35 percent and a hydroxypropoxyl substitution of from 4-35 percent.

Abstract: A plastic pallet (10) having good load bearing construction and held together without mechanical fasteners, includes deck boards (30). The deck boards include ridges (24) on an upper side (32) and a lower side (34) thereof. Deck boards are positioned transversely on stringers (12) and joined thereto by either an adhesive or thermoplastic welding processes. The stringers and deck boards may be provided with end caps (26, 42) which seal interior areas of the stringers and deck boards and prevent tearing thereof. The stringers and deck boards have interior reinforcement ribs (22,40). The cross sectional profiles of the stringers, deck boards, and end caps provide a cost effective and light weight pallet. Openings which extend between the stringers allow for either two way fork entry and/or four way fork entry. The stringers and deck boards provide flexibility in constructing pallets of various designs. The plastic pallet preferably is highly durable and fully recyclable.

Abstract: A fluid dispensing apparatus for automated dispensing high-viscosity fluids for mixing applications, such as dispensing of pigment concentrates for mixing screen printing inks and paints includes a rotatable carousel containing a plurality of different pigment concentrate supplies. The carousel is selectively rotated into a dispensing position in alignment with a dispensing pump and the pump is actuated to dispense through a dispensing valve assembly associated with each pigment concentrate supply. The dispensing valve assembly includes a pair of dispensing valves having different valve orifices so that the pigment concentrates may be dispensed in coarse and fine iterations into a container for mixing.

Abstract: Copolymers of vinyl or vinylidene halides and vinyl esters of fatty acids having low molecular weights, good particle characteristics, and improved melt flow are made by aqueous polymerization utilizing an effective amount of a mercaptan as a chain transfer agent, wherein the chain transfer agent is admixed with the vinyl esters to form a chain transfer composition, and the composition be added before the start of the polymerization.

Abstract: An improved process is disclosed for manufacturing chlorinated hydrocarbon by way of a once-through air-based oxychlorination process which yields reduced levels of environmental toxins such as chlorobenzenes, polychlorinated biphenyls, polychlorinated dibenzodioxins and polychlorinated dibenzofurans. The process involves fixed bed or fluid bed catalyzed oxychlorination of a hydrocarbon reactant containing from 1 to 3 carbon atoms. The oxychlorination process consists of contacting the hydrocarbon reactant with air or oxygen enriched air and hydrogen chloride in the presence of the oxychlorination catalyst in a heated reaction zone operated at from 150.degree. C. to 600.degree. C. and recovering chlorinated hydrocarbon from the effluents of the reaction zone. The improvement consists of the use of air which is pretreated before use in the operated oxychlorination process by a means for removal of the aromatic hydrocarbons.

Abstract: Opacified Pearlescent Compounds for Making an elongate louver or assembly of louvers having an improved multi-layer louver configuration comprising an opacified pearlescent outer layer having a claimed range of opacity which substantially or completely occludes an base layer, the increased opacity substantially reduces or eliminates perceptible non-uniformity in coloration, shade change and thickness of the outer layer, while improving resistance to yellowing, processing characteristics, and raw material cost economics.

Abstract: In accordance with the present invention there is provided a method for making and using an improved chromium catalyst which is useful in oxidation of combustible materials such as hydrocarbons, chloro-carbons, chlorohydrocarbons, polymers and other combustible materials. The process for the catalytic oxidation of combustible material, comprises: contacting a combustible material in a heated reaction zone in the presence of oxygen and a chromium impregnated catalyst prepared by impregnating a supporting material with a chromium compound and calcining the solid material at a temperature and for a time at least sufficient for the supporting material to reach a temperature of at least 725.degree. C. By the method the catalyst exhibits reduced loss of chromium to the environment.

Abstract: The subject invention relates to a process for oxychlorination of ethylene to produce 1,2-dichloroethane. The process comprises contacting a mixture of ethylene, oxygen or oxygen containing gas and hydrogen chloride with a fixed or fluidized catalyst composition in a reaction zone and recovering 1,2-dichloroethane from the effluents of the reaction zone.The invention is embodied in a process for the oxychlorination of ethylene to produce 1,2-dichloroethane by contacting a mixture of ethylene, oxygen containing gas and hydrogen chloride with a catalyst composition in a reaction zone and recovering 1,2-dichloroethane from the effluents of the reaction zone the process comprising introducing ethylene, HCl and oxygen containing gas into said reaction zone in a ratio of 1.8 and 2.2 moles of HCl per mole of ethylene and from 0.5 to 1 mole of oxygen per mole of ethylene, the oxychlorination process taking place at a temperature of from 215.degree. C. to 230.degree. C.

Abstract: Rigid thermoplastic articles are disclosed which have reduced surface gloss. The reduced gloss is achieved by the use of a mixture of polymers having different viscoelastic properties. The preferred embodiment is a mixture of PVC and crosslinked PVC.

Abstract: Polyvinyl chloride-acrylate copolymers are plasticized with plasticizers to produce a composition having low hardness values. For example, Shore A values of 55 or less can be readily achieved. Such low values are often achieved by utilizing low amounts, for example less than 100 parts by weight, of the plasticizer for every 100 parts by weight of the PVC-acrylate copolymer. Low Shore A hardness values are also aided by the use of high amounts of acrylate units in the copolymer, that is amounts of at least 45 percent by weight based upon the total weight of the copolymer. The copolymer is made from a vinyl constituent which is a vinyl chloride monomer with an optional vinyl component comonomer and one or more acrylate monomers having the formula ##STR1## wherein R.sup.1 is an aliphatic, an aromatic, or combinations thereof, having from 1 to 18 carbon atoms, or a halogen derivative thereof, or hydrogen, and R.sup.