Abstract:
A lubricant for polyolefin carpet backing containing a copoly(oxyethylene-oxypropylene) glycol or monoether, a hindered phenol stabilizer, a coupling agent, a bulk wetting agent and, optionally, a corrosion inhibitor suitable for use in carpets having a polyolefin backing. The lubricant composition of this invention prevents degradation of the carpet backing while at the same time, affording good lubricity during the carpet manufacturing process.
Abstract:
An Oxo process using unsaturated organic reactants such as alkyl alkenoates to prepare oxygenated products comprising aldehydes which have unusually high normal to branched-chain isomer ratios. The process involves using a particularly characterized rhodiumcontaining complex catalyst under a specific combination of carefully controlled reaction conditions.
Abstract:
Zeolite-based hydrocracking catalysts having a low residual sodium content achieved by ammonium cation exchange are loaded with a hydrogenation agent comprising a mixture of a Group VIII non-noble metal and a Group VI-B metal by a process which avoids to a high degree loss of effective catalytic surface area. The use of an ammonium ion exchange medium having a pH value within critical limits for the second of two necessary cation exchange procedures is an essential feature of the process.
Abstract:
A temperature control system for raising and controlling the temperature of small volumes of liquid by heating the liquid and detecting the instantaneous temperature and rate of temperature increase and utilizing this information to control the heating of the liquid so that the desired liquid temperature is attained and maintained in a minimum time interval.
Abstract:
A machine for spray coating a rotating irregular shape which moves a spray coating device in three paths to provide constant relative speed; standoff distance; and angular relationship between the spray coating device and surface of the shape to be coated.
Abstract:
A method of cross-linking polyacrylamide is provided which is particularly suited to the fabrication of battery separators. To an aqueous solution of polyacrylamide is added a chromiumcontaining compound wherein chromium is present at a valence of other than +3 and a compound which will react with said chromium containing compound to yield chromium ions at a valence of +3 which initiate cross-linking of the polyacrylamide.
Abstract:
Process for the preparation of stable, high surface area, virtually pure zinc filaments and in particular zinc fibers and needles having a unique crystal structure consisting essentially of one or more single crystals preferentially orientated with an ''''a'''' axis parallel to the axis of the filament. The zinc fibers and needles are prepared by the electrolysis of a soluble zinc salt-containing electrolyte solution under conditions of extremely high cathode current density.
Abstract:
A process for cryogenic separation wherein precleaned compressed air is divided into a first minor portion which is cooled and work expanded to relatively low pressure, a second minor portion liquefied and distilled, and a major portion work expanded to relatively high pressure.
Abstract:
Novel polymeric blends which are capable of being fabricated into useful and novel consumer-type and industrial-type plastic products. After the useful life of such products they can be discarded. The ambient surrounding elements, including microorganisms and sunlight, thereafter cause the discarded products to degrade. The novel blends comprise a biodegradable thermoplastic polymer, e.g., poly(epsilon-caprolactone) or poly(ethylene adipate), and an evironmentally degradable normally-solid ethylene polymer.