Abstract: Sulfur-based roof shingles which consist essentially of a fibrous base mat coated on at least one surface with a plasticized-sulfur composition were found to have surprising flexibility and fire resistance when compared to similar asphalt shingles.

Abstract: Symmetrical 1,3-dichloroacetone is prepared by contacting chlorine with an aqueous mixture of acetone, monochloroacetone, or mixtures thereof and an iodine-containing promoter.

Abstract: A process for cyclizing 2,4-dibromobutyric acid (DBBA) to alpha-bromo-gamma-butyrolactone (BBL) which comprises contacting the dibromobutyric acid with a base at a temperature between 20.degree. C. and 100.degree. C. and a pH below about 4.0.

Abstract: An offshore structure which is able to withstand the ice forces imposed thereon by impinging ice sheets and other larger masses of ice wherein the structure has an upper conical portion coaxially positioned relative to a lower conical portion. The walls forming both the upper and lower portions are inclined at an angle to the horizontal to receive ice masses moving into contact with the structure. The angle of inclination from the horizontal of the upper portion is greater than the angle of inclination of the lower portion, and the cross-sectional diameter of the upper conical portion is less than that at the top of the lower conical portion so that there exists a step-like section between the upper conical portion and the lower conical portion.

Abstract: 3-Oxacaprolactam is prepared by a process which comprises: contacting an organic acid anhydride solution of a cyanoalkoxyalkanoate with hydrogen in the presence of a noble metal hydrogenation catalyst to prepare an amide-ester; and heating the amide-ester in excess water at a temperature above about 200.degree. C.

Abstract: A vapor-recovery system in which a coaxial vapor-recovery fuel dispensing nozzle cooperates with portions of the vehicle fuel receiving and storage system to prevent the escape of vapors into the atmosphere during refueling. The fuel-dispensing nozzle comprises a rigid, tubular vapor-recovery member coaxially arranged around the nozzle discharge spout to define a vapor-recovery passageway therebetween. A seal means is located inwardly of the fuel tank fillpipe opening to sealingly engage the vapor-recovery member when the nozzle discharge spout is operatively inserted into the fillpipe so that substantially all refueling emissions will flow into the vapor-recovery passageway of the vapor-recovery member.

Abstract: Method for sterilizing soft contact lenses and the like using methoxymethane while the lenses are in a liquid-wetted state. Methoxymethane on the water-wet surface for a sufficient time kills the microorganisms (bacteria, molds and yeasts) that invade and are entrapped in the pores and irregular surfaces of the hydrophilic materials from which such soft contact lenses are made. An easily portable apparatus for applying this sterilization technique to the lenses is also disclosed. It includes a lens holder that can be held in a chamber that can be pressure-isolated to receive the methoxymethane gas from portable sources. In one form, an indicator shows that the lenses are under sterilization pressure. This novel arrangement dispenses with the inconvenience of using prolonged steaming, or questionable sterilization in disinfecting fluids which may affect the composition of the soft contact lens.

Abstract: N-carbamylalkyl-2,6-dialkyl-.alpha.-haloacetanilides have herbicidal activity, particularly in pre-emergent applications against grassy weeds.

Abstract: A process for producing a lactone-substituted aniline wherein a 3-halo-tetrahydro-2-oxofuran is reacted with an aniline in the presence of water and a base at a temperature between 80.degree. and 160.degree. C. and wherein the base is added at a sufficiently slow rate so that the pH does not exceed about 7.5.

Abstract: A method for reducing the fibrillation of polypyrrolidone fibers which comprises contacting the fibers with an aqueous solution containing dimethyloldihydroxyethyleneurea and an acidic catalyst.

Abstract: Novel N-haloacetylphenylamino carbonyl oximes represented by the formula ##STR1## wherein Ar is aryl, R.sup.1 is halomethyl, R.sup.2 is hydrogen, alkyl or aryl, R.sup.3 is hydrogen, alkyl or aryl, n is 0 or 1 and R is hydrogen, aryl, alkyl, alkenyl or alkynyl, with the proviso that R.sup.2 and R.sup.3 may be joined together to form a carbocyclic ring of 5 to 6 carbon atoms or a heterocyclic ring of one N, O or S hetero atom and 4 to 5 carbon atoms. The oxime compounds are useful as herbicides and plant growth regulators.

Abstract: Compounds of the formula ##STR1## wherein R is aliphatic hydrocarbyl, alicyclic hydrocarbyl or aryl suitably substituted, if desired, or a heterocyclic group, R.sup.1 is hydrogen or alkyl, R.sup.2 is alkyl or alkoxy, R.sup.3 is ##STR2## wherein a is 0 or 1, R.sup.4 is hydrogen or CW'.sub.3, the W' being hydrogen or halogen, Z is halogen and X is halogen, hydroxy, alkoxy, acetoxy, carbethoxyalkoxy, phenoxy, alkylthio, carbethoxyalkylthio, phenylthio, phosphono, dithiophosphonoxy, phosphoramido, isocyanato, isothiocyanato, alkyl- and dialkylthiocarbamoylthio, alkyl- and dialkylcarbamoyloxy, alkylsulfonyl, etc., have herbicidal activity.

Abstract: Fungi, mites and mite eggs are killed by applying thereto sulfonamides of the formula ##STR1## wherein R and R.sup.1 individually are alkyl, cycloalkyl, aryl, carbamylalkyl, or alkoxycarbonylalkyl and R.sup.2 is haloalkyl, with the proviso that one R or R.sup.1 group is carbamylalkyl or alkoxycarbonylalkyl.

Abstract: A shielding means which has a continuous sidewall made up of a first set of multiple layers of ballistic nylon. An open end of the sidewall is closed with a second set of multiple layers of ballastic nylon. The other open end of the sidewall fits over and is securable to a housing cover to be shielded.

Abstract: A credit card imprinter with a base for retaining the printing elements and transaction form. The imprinter includes a platen adapted to be moved from an initial position to an extreme position and back over the printing area on the base. Gear wheels are provided for positioning print wheels, and a stop means is provided to prevent movement of the platen to a movable mode until all the print wheels have been reset by actuation of a reset handle preceding a printing operation.

Abstract: Compounds of the formula ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 are alkyl and R.sup.4 is alkyl, haloalkyl or aryl.

Abstract: Compounds of the formula ##STR1## wherein X is halogen of atomic number 9 through 35, i.e., fluorine, chlorine or bromine, or alkyl of 1 to 3 carbon atoms, n is 0, 1 or 2, and R and R.sup.1 are individually hydrogen, methyl or ethyl, possess acarid ovicidal activity.

Abstract: A process is disclosed wherein a naphtha feedstock is subjected to hydrotreating, a C.sub.5 + fraction from the hydrotreating zone effluent is catalytically reformed in a reforming zone with the reformate being subjected to selective catalytic hydrocracking to produce C.sub.4 + liquid fraction. The liquid fraction is then admixed with a portion of C.sub.4 hydrocarbons obtained from the hydrotreating zone effluent.

Abstract: Calcium and barium bis-O,S-dialkyl-N-alkanoylphosphoroamidothioate salts have high insecticidal activity and are substantially more stable than the corresponding O,S-dialkyl-N-alkanoylphosphoroamidothioate compound.

Abstract: This invention relates to novel N-alkyl-N-cyanoformyl carbamates and N-alkyl-N-cyanoformyl thiolcarbamates and their use as nematocides.