Abstract: An accident-proof syringe that has an automatically and permanently covered needle point at all times for use with clinical apparatus operably applied to a patient by way of skin puncture; this disposable non-reusable hypodermic needle assembly comprises a hollow syringe body, a piston slidably mounted inside the syringe body and defining between the closed end of the syringe body and the piston a compartment for containing a liquid to be injected or withdrawn from a person, an injection needle, the base of which is fastened to a needle support member, said support member and said piston being adapted for allowing at least partial insertion of said support member in said piston and for allowing the needle to communicate with said syringe body compartment upon said insertion, a substantially cylindrical sleeve member which is open at both ends, said needle support member being mounted at one end portion of said sleeve member, retaining means for fastening said sleeve member to the syringe body during the stora

Abstract: A fat simulating composition is composed of a substantial portion of elongated, irregularly shaped carbohydrate gel particles having a longest axial dimension of up to 250 microns with a mean volume diameter ranging from about 10 microns to about 100 microns; the particles are in a hydrated state so as to have the substantially smooth organoleptic character of an oil emulsion. This fat simulating product is substituted in foods for all or a portion of the fat and/or oil used in that food product.

Abstract: A process for the preparation of an oriented multilayer laminate film having at least three layers, said method including: (a) extruding in a molten state (i) polypropylene selected from a homopolymer or a copolymer of propylene wherein said copolymer comprises an alkene monomer having 2 or 4-6 carbons; (ii) adhesive; and (iii) co-polyester of a polyesterification reaction product where the reactants are at least one glycol and at least one dibasic acid with the total reactants being at least three of the glycols and dibasic acids, (b) laminating (i), (ii) and (iii) together in the molten state to form the film; (c) cooling the film; (d) drawing the film in a temperature range that allows orienting without breaking; and (e) heat setting the oriented film.

Abstract: A new composition of matter that can be substituted as a bulking agent for sugar or starch to reduce the caloric content of foods comprising the polymeric product of the reaction of a water-soluble polyol with a di- or tri-epoxide, in water containing a water-soluble inorganic base that serves as a catalyst, and the process for making it.

Abstract: A purified hydroxyethylcellulose (HEC) or hydroxypropylcellulose (HPC) reacts with a perfluorinated alkyl glycidyl ether to produce an associative thickener wherein a fluorinated C.sub.8 chain is nearly as effective as a hydrocarbyl C.sub.16 straight chain hydrophobe. A preferred glycidyl ether is prepared by reacting a terminal hydroxyl of a perfluorinated surfactant with epichlorohydrin.

Abstract: Novel carbon fiber in the form of a plurality of tows or bundles comprising a multitude of continuous filaments is disclosed. The novelty of the carbon fiber resides in its unique combination of mechanical properties that make it admirably suited for use in composites comprising an organic matrix. Such composites are particularly useful in aerospace applications that have designs in which weight and performance are critical.

Abstract: Used as a thickener a Fluidized Polymer Suspension (FPS) with or without salt as a suspending agent allows producing joint, spackling and texture compounds in significantly reduced time. Products produced with FPS are more uniform and stable than ones made with solid thickeners.

Abstract: Emulsions, solutions and coatings comprising nitrocellulose are stabilized against yellowing on thermal aging when treated with boric acid or borax or hydrogen peroxide or 0.1 to 0.5% by weight of a chlorinated hydantoin such as 1,3-dichloro 5,5-dimethylhydantoin (DCH). Boric acid or borax may be added as aqueous solutions during nitrocellulose manufacture. Combined treatments and/or additions of boric acid and DCH give optimum stabilization against yellowing.

Abstract: Fluidized aqueous suspensions of 15% or more by weight hydroxyethylcellulose, hydrophobically modified cellulose ether, hydrophobically modified hydroxyethylcellulose, methylcellulose, hydroxypropylmethylcellulose and polyethylene oxide are prepared by addition of the polymer to a concentrated sodium formate solution containing xanthan gum as a stabilizer.

Abstract: Fluidized aqueous suspensions of 15% or more by weight hydroxyethylcellulose, hydrophobically modified cellulose ether, hydrophobically modified hydroxyethylcellulose, methylcellulose, hydroxypropylmethylcellulose and polyethylene oxide are prepared by addition of the polymer to a concentrated sodium formate solution containing xanthan gum as a stabilizer.

Abstract: A ribbonizing apparatus and method for forming a fiber band from a plurality of fiber tows extending along respective fiber tow pathways. The ribbonizing apparatus includes an assembly for selectively heating at least a respective one of the plurality of fiber tows as the fiber tow extends along the fiber pathways. When not needed, the heat is removed from the fiber tow. A plurality of embodiments for accomplishing the method are contemplated.

Abstract: A fat simulating composition is composed of a substantial portion of elongated, irregularly shaped carbohydrate gel particles having a longest axial dimension of up to 250 microns with a mean volume diameter ranging from about 10 microns to about 100 microns; the particles are in a hydrated state so as to have the substantially smooth organoleptic character of an oil emulsion. This fat simulating product is substituted in foods for all or a portion of the fat and/or oil used in that food product.

Abstract: A tool for using in aligning, fastening, supporting, and sealing adjacent sections of a mandrel having a curved outer surface is provided. This tool has a T-shaped cross section and includes a leg section that has a composite sheet extending through the middle of it and a top section that is integral with said leg section. The top section has a pair of grooves therein spaced apart from each other along the length of the tool where O-ring means fits in the grooves and seals the adjacent section of the mandrel gas tight.

Abstract: A container providing controlled atmospheric storage of produce (i.e., fresh fruits, vegetables and flowers) to improve retention of product freshness by adjusting the carbon dioxide to oxygen ratio, for the storage of said produce, can be attained and maintained, thereby retarding premature maturation and spoilage. The environment is controlled by providing a microporous membrane panel of a uniaxially or biaxially oriented microporous polyolefin coated with a cured silicone elastomer, said panel being of limited carbon dioxide and oxygen permeance on an otherwise substantially impermeable container. The size of the area of the panel is a function of its permeance, the amount and respiration rate of the contents, and the ratio of carbon dioxide to oxygen desired.

Abstract: An innerliner for tubeless tires is comprised of at least one non-elastomeric barrier layer such as poly(vinylidene chloride) or ethylene--vinyl alcohol copolymer film with each barrier layer sandwiched between two layers of an elastomeric material adhering to the rubber stock employed in the carcass of the tire. The innerliner has the advantage of imparting equal or better air retention properties to the tire with a substantial reduction in the thickness and weight relative to conventional halobutyl rubber innerliners.

Abstract: Biaxially oriented film is post-treated by an annealing process in a limited temperature range of 45.degree. C. to 120.degree. C. for various time periods based on the temperature for annealing in order to produce a film having less than a 0.2% shrinkage in the machine direction as measured at 51.7.degree. C. for 24 hours. This film has a wide range of uses, such as overwrapping film.

Abstract: The present invention concerns natural 5-decanolide and 5-dodecanolide, obtainable by biocatalytic reduction of natural 2-decen-5-olide, respectively 2-dodecen-5-olide, as well as the production of natural 5-decanolide and 5-dodecanolide by biocatalytic reduction of the corresponding unsaturated natural 2-decen-5-olide, respectively 2-dodecen-5-olide.

Abstract: Polyacrylonitrile (PAN)-based carbon fiber in the form of a filament bundle has a high Modulus and a high Tensile Strength in the Impregnated Strand Test respectively between about 42 million and 50 million psi and between about 600,000 and 900,000 psi, and Short Beam Shear Strength between about 15,000 and 19,000 psi in the Laminate Test; this PAN-based carbon fiber also has an electrolytically treated surface at 0.2 to 0.8 columbs per inch per approximate 12,000 filaments. The preparation of this PAN-based carbon fiber was accomplished by stretching during carbonization previously stretched and stabilized fine denier precursor while maintaining temperatures and heat up rates within certain ranges.

Abstract: The use of acetals as aldehyde generators in foodstuff applications is disclosed.

Abstract: Process of carbon fiber manufacture wherein the polyacrylonitrile precursor is stretched prior to oxidation step of the carbonization operation but after the stretching step of the spinning operation in limited temperature range. Process permits greater throughput in precursor manufacture and reduces flaws in the precursor because significant stretching is at lower line speeds typically used for oxidation and carbonization in making carbon fiber.