Abstract: Disclosed herein are improved urethane prepolymers comprising the reaction product of a polyol with a monomeric isocyanate. The amount of residual unreacted monomeric isocyanate in said prepolymer is less than about 0.7% by weight of said prepolymer.

Abstract: A method for forming dried, solid, particulate product from complex sugar solutions by drying the solution in a current of heated air and in the presence of separately introduced recycled dried solids which have undergone additional conditioning to have a moisture content of not greater than about 0.5 percent therein.

Abstract: Disclosed herein is a fabric softener-containing article comprising a fabric softener impregnated into an open-celled reticulated urethane foam; said impregnated foam being compressed to form a sheet or wafer. The fabric softener also acts as a solid binder which maintains the reticulated urethane foam in compressed form. The compressed sheet-like compositions are especially advantageous in that they are only 1/5 to 1/15 the size of comparable materials containing equivalent loadings of fabric softener. During the laundry wash cycle the water-dispersible fabric softener is released allowing the foam to slowly rebound to substantially its original uncompressed shape.

Abstract: This invention relates to radiation curable compositions comprising mixtures of epoxy resin and di- or polyacrylate or methacrylate terminated monomers in combination with a catalyst system comprising a carbonyl type photoinitiator with an aromatic onium salt capable of effecting the cure by release of a Lewis Acid.

Abstract: This invention relates to a process for preparing a catalytic solution of a sulfonium salt of a complex anion, capable of yielding a Lewis Acid when irradiated by UV or high energy ionizing radiation comprising reacting a sulfonium halide with an alkali metal salt of the complex anion in a solvent mixture containing a polyol having at least two hydroxy groups and a lactone.

Abstract: A method of controlling and removing ice and snow from roads and bridge deckings in a substantially non-corrosive manner by applying calcium nitrite to such areas at a rate of from 1 to 50 tons per two-lane mile. The present method is particularly applicable to the control and removal of snow and ice from roads and bridges formed from hydraulic cement.

Abstract: This invention is directed to polyenes derived from hydantoin acids, amines and esters. The polyene is typically a reaction product of a hydantoin amine, e.g., N,N'-bis(3-aminopropyl)-dimethylhydantoin, a diisocyanate and an unsaturated ether, e.g., trimethylolpropane diallyl ether. Upon exposure to a free radical generator, e.g., actinic radiation, in combination with a polythiol, this polyene cures to a solid, insoluble, chemically resistant, crosslinked polythioether product having excellent heat stability.

Abstract: This invention is directed to polyenes derived from hydantoin acids, amines and esters. The polyene is typically a reaction product of a hydantoin amine, e.g., N,N'-bis(3-aminopropyl)-dimethylhydantoin, a diisocyanate and an unsaturated ether, e.g., trimethylolpropane diallyl ether. Upon exposure to a free radical generator, e.g., actinic radiation, in combination with a polythiol, this polyene cures to a solid, insoluble, chemically resistant, crosslinked polythioether product having excellent heat stability.

Abstract: This invention relates to photocurable compositions comprising an epoxy resin and a catalytic amount of a photodecomposable thiopyrylium salt of the formula: ##STR1## WHERE R.sub.1, R.sub.2 and R.sub.3 are independently selected from the group consisting of hydrogen, alkyl containing 1 to 10 carbon atoms, cycloalkyl containing 5 to 12 carbon atoms, aryl containing 6 to 12 carbon atoms and substituted derivatives thereof, M is a metal or metalloid, X is a halogen radical, a is a whole number equal to 1 to 10 and n is a whole number equal to 1 to 3.

Abstract: Disclosed herein is an improved feed additive for administration to ruminants to prevent or minimize lactic acidosis when the ruminant is switched from a diet of roughage to starch (high energy). The additive comprises a bacterial culture of Megasphaera elsdenii admixed with an ingestible animal feed additive. The additive utilizes the unexpected ability of M. elsdenii to ferment lactic acid in preference to simple sugars, thereby minimizing accumulation of lactic acid. The preferred embodiment is the combination of M. elsdenii with substances (including bacterial cultures) producing ruminal propionic acid, thereby providing a high propionic level while avoiding lactic acid accumulation.

Abstract: This invention relates to a process for preparing thioethers by the addition of an SH group from a thiol-containing compound, e.g., an alcohol, ester or acid, across at least one double bond of an ethylenically unsaturated compound in the presence of an initiator comprising a pinacol of the general formula: ##STR1## wherein R is phenyl or substituted phenyl, said substituents being members of the group consisting of halogen, alkyloxy and alkyl, said alkyloxy and alkyl containing 1 to 6 carbon atoms.

Abstract: This invention relates to polyenes containing at least two ethylenically unsaturated bonds per molecule formed by reacting in substantially stoichiometric amounts, (1) a primary diamine, (2) a member of the group consisting of a benzenoid-containing dianhydride, acid anhydride and anhydride acid halide and (3) an ethylenically unsaturated alcohol. The thus formed amideacid polyene either per se or after being cured in combination with a polythiol in the presence of a free radical generator will, upon heating, imidize.

Abstract: A continuous protective coating is formed on a fiber optic by coating said fiber optic in a bath of a liquid radiation curable composition at a temperature up to 90.degree. C and thereafter exposing the coated conductor to ultraviolet or high energy ionizing radiation to cure the coating.

Abstract: This invention relates to a liquid radiation curable composition useful for coating and imaging which comprises(1) an acrylic or methacrylic terminated, urethane containing polyene,(2) a non-water soluble vinyl monomer diluent, preferably an acrylate or methacrylate monomer diluent,(3) a polythiol containing at least two thiol groups per molecule and(4) a photoinitiator.The composition on exposure to radiation, e.g., a U.V. light source, cures to a solid polythioether.

Abstract: This invention relates to polyenes containing at least two ethylenically unsaturated bonds per molecule formed by reacting in substantially stoichiometric amounts, (1) a primary diamine, (2) a member of the group consisting of a benzenoid-containing dianhydride, acid anhydride and anhydride acid halide and (3) an ethylenically unsaturated alcohol. The thus formed amide-acid polyene either per se or after being cured in combination with a polythiol in the presence of a free radical generator will, upon heating, imidize.

Abstract: This invention relates to a process for preparing thiols and polythiols by the addition of a thiolcarboxylic acid, e.g., thiolacetic acid, to ethylenically unsaturated compounds in the presence of an initiator comprising a pinacol of the general formula: ##STR1## wherein R.sub.1 and R.sub.3 are members independently selected from the group consisting of substituted and unsubstituted aromatic radicals, R.sub.2 and R.sub.4 are members independently selected from the group consisting of substituted and unsubstituted aliphatic and aromatic radicals and X and Y are members independently selected from the group consisting of hydroxyl, alkoxy and aryloxy to obtain a thiol ester which is thereafter hydrolyzed to yield the corresponding thiol.

Abstract: This invention relates to polyenes containing at least two ethylenically unsaturated bonds per molecule formed by reacting a hydantoin glycol with an ethylenically unsaturated reactant or adduct containing an isocyanate group. On exposure to a free radical generator, e.g. actinic radiation, the polyenes of the instant invention in combination with a polythiol form a solid, insoluble, crosslinked polythioether product.

Abstract: This invention is directed to a process for forming a wettable battery separator comprising a non-woven mat of polyolefin fiber by forming a non-woven mat of polyolefin fiber having a thickness in the range 10 to 40 mils and pore sizes less than 40 microns, contacting the mat with an aqueous solution of a water soluble peroxy compound, e.g. hydrogen peroxide or potassium persulfate at a temperature below 70.degree. C., rinsing the mat in water and thereafter immersing the thus treated mat in an aqueous solution of a hydrophilic vinyl monomer such as acrylic, methacrylic, vinyl sulfonic acid, said solution containing a redox catalyst, e.g. an ion of a transition metal, e.g. ferrous, cerous, cobaltous, or an organic amine, thereby causing a graft polymerization of said hydrophilic vinyl monomer on said polyolefin mat to give a wettable polyolefin battery separator.

Abstract: A process for modifying the silica hydrosol used to bind zeolite clay catalysts by adding salts of titania, zirconia, iron or ceria to the silica hydrosol in the course of preparation is disclosed. This addition alters the physical characteristics of catalyst when titania and zirconia salts are added and alters the matrix activity when quadrivalent cerium salts or iron salts are added to the silica hydrosol.

Abstract: Sucrose yield of sugarcane is increased by treating sugarcane a few weeks prior to harvest with isobutanol (2-methyl-1-hydroxypropane), n-propanol or ethyl alcohol as sugarcane ripening agents.