Abstract: Insulating members such as plastic foamed boards or panels are positioned on curved surfaces by affixing the panels or planks to strap members attached to and positioned adjacent the surface to be insulated. This technique is particularly suitable for the insulation of tanks and like containers.

Abstract: Aziridinyl-terminated polymers containing the recurring unit ##STR1## wherein R.sub.1 is hydrogen or methyl and R.sub.2 is hydrogen or a side chain of like structure, are prepared by warming N-(2-hydroxyethyl)- or N-(2-hydroxypropyl)ethylenimine or -propyleneimine. Generally, the reaction is conducted in the presence of an alkali metal and at least trace amounts of water. The polymers are useful as curing agents for epoxy resins.

Abstract: Oxybis(4,1-phenylene(2-oxo-2,1-ethanediyl)) thiocyanate is prepared by reacting diphenyl oxide with chloroacetyl chloride and reacting the intermediate formed thereby with potassium thiocyanate. The compound has antimicrobial utility.

Abstract: A synergistic catalytic effect is realized in the esterification reaction between an organic carboxylic acid and a vicinal epoxide by using a catalyst system comprising: (a) a compound containing an amino and/or ammonium nitrogen atom, in combination with (b) a soluble compound containing an ionizable atom of iron or chromium.

Abstract: Deuterated analogues of halothane and chloroform are used to anesthetize an animal.

Abstract: C.sub.n dienes are efficiently separated and produced from a C.sub.n hydrocarbon feed stream, wherein n is 4-8. For example, 1,2- and 1,3-butadienes are separated and produced from a C.sub.4 hydrocarbon feed stream comprising C.sub.4 alkynes, n- and isobutenes, n- and isobutanes and 1,2- and 1,3-butadienes by sequentially:A. hydrogenating the C.sub.4 alkynes and removing any heavy residue produced thereby;B. separating the 1,2- and 1,3-butadienes into a first stream and the remaining C.sub.4 hydrocarbons into a second stream;C. removing first the isobutene and second the n- and isobutanes from the second stream; andD. converting the remaining alkenes of the second stream to 1,2- and 1,3-butadienes and then recycling said butadienes to the first stream of (b).This process affords greater product flexibility with less physical plant than that afforded by conventional processes.

Abstract: Compositions exhibiting high catalytic activity in the polymerization of .alpha.-olefins are provided by mixing a dinitrogen and/or dihydrogen complex of a transition metal such as titanium with a conventional Ziegler catalyst such as the reaction product of titanium tetrachloride and aluminum triethyl. Polymerization processes employing this catalyst composition do not require conventional catalyst removal steps in order to provide polymers having suitable color and other physical characteristics.

Abstract: Improved monovinyl aromatic monomer-acrylonitrile copolymers are prepared by polymerizing at temperatures above 80.degree. C in the presence of certain free radical initiators, the resultant polymers are prepared at high rates of conversion, have relatively high heat distortion temperatures, have a low oligomer content and generate relatively little additional acrylonitrile under fabrication conditions.

Abstract: 2-((2-Chlorophenyl)azo)imidazole and its hydrochloride salt and its dimethyl iodide derivative were prepared and employed as anthelmintics for the control of gastrointestinal nematodes (worms) in animals and more specifically for the control of Haemonchus in ruminant animals.

Abstract: Mixtures comprising a low molecular weight diol, a liquid modifier compound having a boiling point above about 150.degree. C, such as a fatty acid or fatty oil, a polyisocyanate having a functionality of at least about 2.5 and an organotin catalyst instantly set, after a brief induction period, to a solid, dense, rigid polymeric product which can be demolded within a period of from less than 1 minute to about 5 minutes.

Abstract: An improved process for the preparation of flexible polyurethane foams which comprise conducting the foaming in the presence of a delayed action catalyst and an inorganic filler having a pH 5 to 10, preferably 6 to 8, and an average particle size of 2-30 microns, preferably 5-15 microns. The process is suitable for slabstock and molded foams.

Abstract: (Isothiocyanatomethoxy)-1,1'-biphenyl compounds are disclosed. These compounds have utility as antimicrobials, herbicides, fungicides, and insecticides.

Abstract: The invention relates to composite panels for building constructions and more particularly to panels comprising a main body portion of a closed cell generally smooth skinned foam material having along at least one surface thereof a protective cementitious facing material adhered thereto; such panels being particularly adapted for use in roofing and curtain wall construction.

Abstract: 2-((3,5-Di-tert-butylphenyl)thio) alkanoic acids and ester derivatives and pharmaceutically-acceptable salts thereof are disclosed; pharmaceutical compositions containing said compounds and methods of reducing plasma lipid levels in mammals are also provided.

Abstract: Cured phenolic resole bodies including foams which are generally non-corrosive are prepared by including in the curable mixture an inorganic alkali-containing particulate solid such as certain glasses.

Abstract: An apparatus and method based on X-ray transmission is disclosed for determining the thickness, or equivalently, the weight per unit area, of a substance containing atoms of a non-radioactive element of atomic number of 11 or greater applied to a fabric, such as a calcium- and/or aluminum-containing latex coating on a carpet. The apparatus employs a source of radiation which emits a single predominant X-ray within the range of 12-19 Kev, such as zirconium which fluoresces at 16 Kev when bombarded with 60 Kev radiation from americium-241; a detector sensitive to the radiation emitted and having resolution at least as sharp as about 20 percent, such as a Kr/CO.sub.2 proportional counter; and a suitable electronic circuit to convert the charge pulse output of the detector to a readout signal related to the amount of the substance on the fabric.

Abstract: Quaternary ammonium compounds such as [2-(4-amino-2,6-dibromophenoxy)ethyl]dimethyl (allyl) ammonium bromide are prepared by the reaction of a tertiary amine such as 3,5-dibromo-.beta.-dimethylamino-p-phenetidine with a substituted organic compound such as allyl bromide. The quaternary ammonium compounds are useful in alleviating or inhibiting cardiac arrhythmias when the quaternary ammonium compounds, or compositions comprising the same are administered to animals.

Abstract: Novel compounds corresponding to the formula ##STR1## and the organic or inorganic acid addition salts thereof, wherein X represents chloro, bromo or fluoro; R.sup.1 represents hydrogen, amino, loweralkylamino, arylamino, loweralkylamido or N-(loweralkyl)loweralkylamido; R.sup.2 represents hydrogen, X, amino or loweralkylamino, with the proviso that one of R.sup.1 or R.sup.2 is always amino or loweralkylamino and the other of R.sup.1 or R.sup.2 is other than amino or loweralkylamino; R represents butyl, 2-hydroxypropyl, 4-hydroxybutyl, 6-hydroxyhexyl or the radical ##STR2## wherein Z represents amino, lower-alkylamino, phenylamino, hydroxy, loweralkoxy, aryloxy, 2-propenyl, hydroxyloweralkoxy, mercapto, loweralkylthio, loweralkanoyloxy or 2-haloloweralkanoyloxy and R.sup.3 represents hydrogen or methyl and with the proviso that R is other than butyl when R.sup.2 is X are prepared. These compounds are useful as herbicides and as active agents in compositions used as herbicides.

Abstract: The preparation of the azide of a carboxylic acid by reacting the hydrazide of the acid with nitrous acid is facilitated by using the organic solvent-soluble complex of an alkali metal nitrite with an ethylene oxide or propylene oxide cyclic polymer as the nitrous acid source. The improvement is particularly useful as a means for making peptides by the coupling reaction of an amino acid ester or other derivative with an acid azide in an anhydrous reaction medium.