Abstract:
Una composicion de resina de policarbonato resistente a la radiacion ionizante que consiste de 0.1 a 10 partes en peso de un compuesto orgánico que tiene un enlace doble carbono-carbono formando un orbital no enlazador en la molécula en base a 100 partes en peso de una resina de policarbonato, y una parte médica que comprende la misma; la composicion de resina de policarbonato y la parte médica que la comprende exhiben un menor deterioro de color y de propiedades físicas incluso cuando irradiadas con radiacion ionizante para esterilizacion, y son, por lo tanto, utiles como material para una parte médica y una parte médica.
Abstract:
A neoalkoxy compound having the following formula: wherein M is titanium or zirconium, R, R 1 and R 2 are each a monovalent alkyl, alkenyl, alkynyl, aralkyl, aryl or alkaryl group having up to twenty carbon atoms or a halogen or ether substituted derivative thereof, and, in addition, R 2 may also be an oxy derivative or an ether substituted oxy derivative of said groups; A, B, and C are each a monovalent aroxy, thioaroxy, diester phosphate, diester pyrophosphate, oxyalkylamino, sulfonyl or carboxyl containing up to 30 carbon atoms; and a + b + c = 3. The compound is useful as a coupling and polymer processing agent and compositions containing the compound and methods of preparing polymeric material including the compound are also described.
Abstract:
Novel branched-chain monoalcohols and derivatives thereof are disclosed. Such derivatives are selected from the group consisting of a) esters of aromatic, aliphatic or cycloaliphatic acids having at least 2 carbon atoms and 1,2 or 3 carboxyl groups; b) urethanes of aromatic, aliphatic or cycloaliphatic isocyanates; c) monoethers of polyalkylene oxide glycols having 2 to 50 alkylene oxide units each containing 2 or 3 carbon atoms and the alkylpolyoxyalkylene sulfates derived therefrom; d) sulfates. The branched-chain monoalcohols are obtained by reduction of branched-chain monocarboxylic acids or esters thereof. Said acids are telomeric acids obtained by the free radical addition of 1 mole of acetic anhydride to at least three moles of hexene and/or higher olefins containing up to 30 or more carbon atoms (C 30+ ) in the presence of a trivalent manganese compound. The products of this invention are suitable for use in engine lubricating oils, lubricant compositions for polymers and wax compositions.
Abstract:
The present invention relates to a cleaning composition comprising: (a) at leat one additive selected from the group consisting of detergents, corrosion inhibitors, organic and aqueous carriers, and combinations thereof, (b) a wetting/cleaning agent selected from the group consisting of piperazine-substituted organosulfonates, piperazinone-substituted organosulfonates, and combinations thereof, and (c) a surfactant selected from the group consisting of alcohol alkoxylates, organic and inroganic salts of polycarboxylated alcohol alkoxylates, and combinations thereof. Also disclosed is an adhesive composition containing the above wetting agent, as well as a method of cleaning a substrate and a method of enhancing adhesion to a substrate using the above wetting agent.
Abstract:
The method of modifying an organic materials including rubber and plastics which consists in the steps of embodying in the organic material during manufacture of the glycerato-zinc complex (C3H6O3Zn) which is manufactured by heating a zinc compound and glycerol to a temperature below the boiling point of the glycerol to form crystals having substantial two-dimensional extension but low thickness and orientating the crystals selectively to improve tensile strength and reduce ultraviolet deterioration of the organic material.
Abstract translation:改性包括橡胶和塑料在内的有机材料的方法,其包括在通过将锌化合物和甘油加热到低于沸点的温度下制备的甘油 - 锌络合物(C 3 H 6 O 3 Zn)的制造过程中在有机材料中体现的步骤 的甘油以形成具有实质的二维延伸但低厚度并且选择性地取向晶体的晶体,以提高拉伸强度并减少有机材料的紫外线劣化。
Abstract:
Described is a preferred UV curable coating composition comprising (exclusive of any solvent present): (a) about 5% to 90% by weight of an acrylated aliphatic urethane having a molecular weight of about 500 to 2000 and formed by the reaction of a multifunctional acrylate with a molecular weight of about 190 to 500 and containing at least three polymerizable unsaturated groups per molecule, with an aliphatic urethane based on a polymer of allyl carbomonocycle diisocyanate with alkanepolyol polyacrylates; (b) about 5% to 30% by weight of a multifunctional acrylate having a molecular weight of about 170 to 1000 and containing at least two polymerizable unsaturated groups per molecule; and (c) a photopolymerization initiator and/or sensitizer. Also described are preferred processes and coated articles involving the preferred coating compositions.
Abstract:
An adhesive system, particularly suitable for the production of laminated separators for alkaline-electrolyte electrochemical cells, comprises a blend of a branched long chain polyacrylic acid with a substantially linear short chain polyacrylic acid, in an organic or aqueous solvent.
Abstract:
a curable resin composition comprising a fluoroolefin polymer containing at least 10% by weight of fluorine based on the fluoroolefin unit, being soluble in a solvent and having curable reactive sites, and a curing agent, wherein a polyfluorocarbon chain-containing compound having a functional group reactive with the fluoroolefin polymer and/or the curing agent, is incorporated.
Abstract:
A method of producing elastomeric silicone foams from a two-part system is disclosed. The method mixes the ingredients then allows a froth to form and cure at ambient temperature to an elastomeric silicone foam. The method mixes a vinyl-containing polydiorganosiloxane (1), a hydroxylated polydiorganosiloxane (2), a platinum catalyst (3), an organohydrogensiloxane (4) and a profoamer (5). The profoamer is a resinous, benzene-soluble organosiloxane copolymer consisting essentially of SiO 4/2 units, silicone-bonded hydroxyl groups, (CH₃)₃SiO 1/2 units, and fluorine-containing units. An embodiment of the method includes a liquified blowing agent and stores the mixture under superatmospheric pressure, forming a foam by releasing the mixture to atmospheric pressure. Another embodiment includes an alcohol in the mixture to provide a foam of lower density. When lauryl alcohol is used and the alcohol is mixed with (1), (3), and (5) before (2) is admixed, the foam has a Bashore resiliency of less than 20.
Abstract:
The disclosure of this application is directed to a composition, devoid of added mineral filler, comprising an ethylene polymer and an organo titanate as a water treeing inhibitor. The compositions can be extruded about electrical conductors providing insulation thereon which is resistant to deterioration in the presence of moisture and an electrical field.