Abstract: Novel compounds comprising siloxane modified carboxylic acid substituted amines and salts thereof are provided. The compounds according to the invention provide many of the desirable properties of ethylenediamine tetraacetic acid and its salts in a stationary phase. A process for synthesis of the compounds according to the invention are also provided.

Abstract: A sports racket comprising a frame made of an energy absorbing structural laminate. The structural laminate comprises: (a) a first layer of composite material comprising x1 plies; wherein at least 0.5x1 plies contain fibers arranged in a shape of a continuous curve; wherein said continuous curve is the same or different in different plies; (b) a second layer of composite material comprising x2 plies; wherein at least 0.5x2 plies contain fibers arranged in a shape of a continuous curve; wherein said continuous curve is the same or different in different plies; and (c) a viscoelastic layer disposed between the first and second layers such that shear strains are substantially distributed throughout the viscoelastic layer when a load is applied to the structural laminate.

Abstract: A process for treating phenol with a strong acid ion exchange resin to reduce the level of methylbenzofuran is provided. The process is capable of being carried out at elevated temperatures for extended periods, such that cooling of the phenol from distillation temperatures prior to the resin treatment is not required. The process can reduce or eliminate the substantial costs associated with conventional processes that require cooling and re-heating the phenol.

Abstract: The present invention is a thermoforming process for manufacturing clear shaped articles such as deli containers, lids, cups and the like from blended, nucleated polyolefin compositions.

Abstract: A zeolite-catalyzed cumene synthesis process in which benzene and propylene feedstocks are pre-treated to remove catalyst poisons. The benzene feedstock is pre-treated under pressure by contact with a “hot” clay bed at a temperature of about 200 to 500° C., followed by distillation of the benzene feedstock to separate the benzene from the higher molecular weight materials formed from olefinic poisons during the hot clay treatment. The benzene feed is also subjected to a “cold” clay treatment wherein the benzene distillate is contacted with an ambient-temperature clay. The propylene feedstock is pre-treated by contact with an alumina to remove trace sodium compounds and moisture, a molecular sieve to remove moisture, and two modified aluminas to remove catalyst poisons. The pre-treated propylene and benzene feedstocks are then reacted in the presence of a zeolite catalyst to form cumene without causing rapid degradation of the catalyst's activity.

Abstract: A holding device for particulate material samples features a carrier block for a holding a capillary or a loop holder that has a free mounting end for a particular sample, whereby the carrier block includes at least one integral gas channel with an opening end that is directed at the mounting end of the holding capillary or a loop holder.

Abstract: A method for purification of acetone containing at least one oxidizable impurity. The method comprises the steps of: (a) contacting acetone containing at least one oxidizable impurity with a heterogeneous oxidation catalyst in the presence of oxygen for a time and at a temperature sufficient to oxidize at least a portion of at least one of the oxidizable impurities; and (b) substantially separating purified acetone from the resulting mixture obtained from step (a).

Abstract: A diaphragm valve is described, which has a valve body having disposed within it an upper chamber and a lower chamber. The valve body also has first and second connection members that extend from the valve body at substantially a right angle, and where the connection members are hollow and in fluid communication with the upper chamber of the valve body. The valve comprises: an entrance for admitting a fluid, an exit for passage of the fluid when the fluid is flowing, a draining port for draining of the fluid from the valve, and a passage between the entrance, the exit, and the draining port; wherein the passage is shaped to permit complete draining of the fluid from the valve under force of gravity when the draining port is open.

Abstract: A foldable support rack having a body member, four hinge portions that are preferably living hinges, tabs extending from opposed ends of the body member, and holes in the body member for engaging the tabs. Additional holes in the body member are dimensioned for receiving articles for support by the rack. The rack is foldable from a first extended position to a second supporting position, forming two portions with triangular cross sections.

Abstract: An improved method for production of phenol and acetone by decomposition of cumene hydroperoxide in the presence of an acidic catalyst to phenol and acetone, wherein the improvement comprises neutralization of the acidic catalyst after substantial completion of the decomposition by addition of a substituted amine.

Abstract: A new method for the preparation of aminopropyl terminated or internal functionalized polyalkyl or aryl siloxanes is described. The method involves readily available commercial starting materials and proceeds under mild conditions in high yield. Purification is facilitated over present commercial procedures and a wider variety of internal functionalized siloxanes may be prepared. The method involves hydrosilation of commercially availably alkyl or aryl functional hydrosilicones with allyl amine or other alkenyl or arenyl amine in the presence of platinum (0) divinyltetramethylsiloxane or platinum (0) cyclovinyl complexes.

Abstract: An amorphous silicate pigment having a pore volume of at least about 4.0 ml/g as measured by mercury intrusion, a BET surface area of at least about 300 m2/g, and an Al2O3 content of about 2.0-10.0 wt % is provided. The invention can be successfully used in recording media coatings, particularly coatings for recording media used in ink jet printing systems.

Abstract: Alkanes are converted to unsaturated carboxylic acids by contacting an alkane with an oxidizing agent and a Wells-Dawson type heteropolyacid supported on wide pore polyoxometallate salts.

Abstract: A treated silica composition particularly useful for solid phase extraction in chemical analysis, the silica having both phenyl and propylsulfonic acid functional groups; a cartridge for extraction which comprises the treated silica; a column for extraction which comprises the treated silica; and a method for solid phase extraction which uses the silica composition. A method for analysis of gamma hydroxybutyric acid is also disclosed which uses the treated silica.

Abstract: In an apparatus used for perfusion-treating objects within a defined treatment area of a liquid bath, the apparatus having a ring having a lower edge which is sealingly placeable on the bottom of the liquid bath and an interior for connection to a liquid conveying device. The ring includes a holding member for receiving an inlet member of the liquid conveying device, or a wall having at least one wall chamber which communicates with the holding member on the ring and with the interior of the ring.

Abstract: A retractable blade knife is described, which has a handle composed of two parallel members connected by biasing spring assemblies and a blade orthogonal to the handle members. A cutting edge comprising cutting segments connected at varying angles to one another is disclosed, the cutting edge providing a visual effect similar to a flaked cutting edge.

Abstract: A kettle for boiling water which uses steam power to drive a rotatable outer housing for providing animation is disclosed.