Abstract: A non-contact tonometer is described for measuring the intra-ocular pressure (IOP) of the eye. An ultrasonic power transducer directs an ultrasonic beam onto the eye and the force generated by the radiation pressure causes indentation or applanation which is detected by ultrasonic or optical means. An optical system provides an image of the eye with appropriate alignment beams injected through a beam splitter for positioning the device with respect to the eye. An additional ultrasonic beam may be used to measure the range to the eye. Another optical means is utilized to measure applanation or indentation; alternatively, an additional ultrasonic transducer and beam could be used. Operation of the device may be through continuous wave or pulsed excitation of the ultrasound. Feed-back control of the ultrasound power level is possible using an additional ultrasonic transducer for measuring the power levels to augment measurement accuracy.

Abstract: A method for hydrogenating unsaturated low molecular weight polymers, preferably polydiene monool, diol and polyol polymers, which comprises contacting the polymers under hydrogenation conditions with hydrogen in the presence of a fixed bed heterogeneous catalyst which is comprised of platinum, palladium or a mixture of the two supported on an alpha alumina support.

Abstract: A process for separating an alkali metal or alkali metal compound from a polymer comprising a conjugated diolefin and/or an alkenyl aromatic hydrocarbon monomer wherein a polymer and one or more alkali metal compounds is contacted with a suitable solid adsorbent. Preferably, the solid adsorbent will be selected from the group consisting of alumina, silica-alumina, silica and mixtures thereof.

Abstract: HCN, and HCN along with COS may be removed from gaseous streams, particularly those derived from the gasification of coal, by contacting the gas stream with a catalyst consisting essentially of specified amounts of molybdenum oxide, or precursor or precursors thereof, and alumina.

Abstract: A process for producing liquid elemental sulfur from a CO.sub.2 -rich gaseous stream containing H.sub.2 S. The gas is contacted with at least a stoichiometric amount of gaseous oxygen in the presence of liquid water with a fixed bed comprising a catalyst selected from the group consisting of a transition metal phthalocyanine compound dispersed on a support at a specific pH and temperature. A preferred support is activated carbon.

Abstract: Pyromellitic dianhydride is produced by reacting pseudocumene with propylene in the presence of an alkylation catalyst, said propylene being present in a stoichiometric excess, to produce 2,4,5-trimethylcumene and diisopropyl-substituted pseudocumenes, treating the resultant 2,4,5-trimethylcumene and diisopropyl-substituted pseudocumenes with an oxygen-containing gas in the presence of a catalyst comprising a vanadium-containing compound dispersed on an inorganic oxide support to produce a treatment product comprising pyromellitic dianhydride and a polycarboxylated compound, decarboxylating the polycarboxylated compound and recovering the resultant pyromellitic dianhydride.

Abstract: A hydroformylation process comprising the treatment of an unsaturated compound with carbon monoxide and hydrogen in the presence of a catalyst comprising a cobalt-containing compound is improved by the addition of a promoter comprising an ester of carbonic acid.

Abstract: Carboxylic acids are prepared by a process which comprises the treatment of an unsaturated hydrocarbon with a compound containing a hydroxy group and carbon monoxide in the presence of a catalyst comprising a zeolite which has been treated by dispersing said zeolite in an alumina hydrosol prior to aging and subsequently drying.

Abstract: The nuclear hydroxylation of aromatic compounds is effected by treating said compounds with hydrogen peroxide in the presence of a catalyst comprising an alkaline solution containing an aliphatic nitrile compound at conditions which include a temperature in the range of from -10.degree. to about 100.degree. C. and a pressure in the range of from about atmospheric to about 100 atmospheres.

Abstract: The nuclear hydroxylation of aromatic compounds is effected by treating said compounds with hydrogen peroxide in the presence of a catalyst comprising an alkaline solution containing a salt of hydrocyanic acid at conditions which include a temperature in the range of from -10.degree. to about 100.degree. C. and a pressure in the range of from about atmospheric to about 100 atmospheres.

Abstract: Cyclooctyl carboxaldehydes and acetal derivatives thereof may be utilized as fragrant compositions, either alone or in admixture with other compounds.

Abstract: A novel antioxidant utilized in a petroleum substrate comprising mono- or di(heterocyclic nitrogen)-substituted diarylalkanes is disclosed.

Abstract: A hydroformylation process comprising the treatment of an unsaturated compound with carbon monoxide and hydrogen in the presence of a catalyst comprising a polynitroaromatic and a cobalt-containing compound is disclosed.

Abstract: A novel antioxidant utilized in a rubber-substrate comprising a mono- or di(heterocyclic nitrogen)-substituted diarylalkane is disclosed.

Abstract: Foamed structures such as those formed of rigid polyurethane can be easily reinforced by a plurality of layers of reinforcement material spaced relatively uniformly throughout their thickness by coating or covering the layers of reinforcement material with absorbent material such as paper, stacking the layers at the bottom of a mold, adding the liquid resin, and curing the resin after it has had sufficient time to wet the absorbent layers. As the resin on the absorbent layers foams, the layers of reinforcement will be simultaneously lifted and spaced from each other to provide uniform reinforcement without the need for special molds or the labor usually required to position spaced layers of reinforcement.

Abstract: Nuclear hydroxylation of aromatic compounds is effected by treating said aromatic compounds with hydrogen peroxide in the presence of a catalyst comprising an alkaline solution containing a salt of hydrocyanic acid, or an aromatic or aliphatic nitrile compound.