Abstract: A compound having the following formula: ##STR1## wherein R.sup.1 is --N.sup.+ H.sub.3 as found in claim 1 and R.sup.2 is either the same as F.sup.1 or hydrogen. "A" is an oxidizing anion, and X is selected to provide a neutral charge balance for the compound. A method of making a compound of the indicated structure from a compound of similar structure by an anion exchange process is also disclosed. Finally, propellant formulations incorporating the novel compounds of the present invention as fuels and oxidizers are disclosed.

Abstract: Unsaturated polyester resin coating powder composition consisting essentially of at least one unsaturated polyester resin; at least one copolymerizable second resin; and an initiator which comprises 1,1'-di(t-butylperoxy)-3,3,5-trimethylcyclohexane (AE), or which contains a small proportion of a fast initiator and a relatively large proportion of a slow initiator as defined herein. Initiator AE has been found to work better as a single initiator than other initiators previously employed in in-mold powder coating formulations. The combination of initiators works better than either one alone, and better than any of the few moderate rate initiators available.

Abstract: Methods for forming or purifying organometallic compounds of elements of Group III-A of the Periodic Table. An intermediate compound is formed which is an adduct of the desired organometallic compound and a Group I-A or Group II-A compound. The adduct is nonvolatile, so volatile impurities are removed from the adduct by distillation. The adduct is decomposed to release the volatile organometallic compound, which is then distilled away from the nonvolatile remainder of the adduct. The method can be used to produce organometallic compounds which are substantially free of volatile metallic compounds and complexed solvents. A method of separating volatile Group II-B impurities from volatile Group III-A compounds is also disclosed.

Abstract: A gas generant composition especially adapted for inflating automotive airbags in the event of a vehicle collision to protect the occupants of the vehicle from injury. The composition consists essentially of 65-74% alkali metal azide; 10-28% ferric oxide; 6-16% sodium nitrate; 0.1-2% fumed silica; and 0-2% molybdenum disulfide. The composition burns at from about 1.2 to about 1.7 inches per second (about 3.0 to about 4.3 cm/sec).

Abstract: Compositions and methods for developing quinone diazide positive-working photoresists. The compositions consist essentially of an aqueous solution of a tetraalkylammonium hydroxide primary alkali and an alkanolamine having the following structure: ##STR1## wherein n is zero or 1, and each R is independently selected from hydrogen, methyl, or ethyl. The methods involve use of this composition to develop the indicated photoresists. The addition of an alkanolamine of the indicated type prevents the formation of irregular deposits on the edges of unexposed portions of the photoresist lines when the photoresist is developed. Selection of these alkanolamines also increases the uniformity of line widths of photoresist lines developed according to the present invention, and increases the process latitude of the developer.

Abstract: Process for forming a liner and cast propellant charge in a rocket engine casing without separately precuring the liner, comprising the steps of providing a blocked curable liner composition which is the reaction product of a prepolymer, an isocyanate curing agent, and a blocking agent; applying the liner composition to an internal surface of a rocket casing; preheating the casing and liner assembly to simultaneously prepare the assembly for receiving a propellant, unblock the liner, and precure the liner to a tacky state; casting the propellant change into interfacial contact with the liner; and cocuring the liner and propellant compositions. The blocked, curable liner composition has a very long pot life which is terminated by heating the composition sufficiently to uncouple the blocking agent from the isocyanate curing agent and initiate a rapid cure. The liner composition does not require precuring, as it is unblocked by preheating the liner and rocket casing sufficiently to receive to cast propellant.

Abstract: A process for depositing a gallium nitride film on a substrate. A source compound is provided which has the formula:H.sub.3 GaNR.sub.3Each R is independently selected from alkyl groups having from 1 to about 4 carbon atoms. The source compound is conveyed into a deposition chamber containing a substrate. The source compound, maintained in the gaseous phase, decomposes in the deposition chamber and optionally reacts with other materals in the deposition chamber. Gallium nitride is deposited on the substrate as a result.

Abstract: Compositions comprising an impermeable acrylate-terminated oligomer, a reactive diluent, and 2-hydroxycyclohexylphenone, 2-hydroxy-2-methyl-1-phenyl-propan-1-one, or diethoxyacetophenone as a photoinitiator, are disclosed. These compositions have utility in optical coatings and electrical insulation.

Abstract: Compositions comprising an impermeable acrylate-terminated oligomer, at least one reactive diluent, and alpha-hydroxycyclohexylphenyl ketone, diethoxyacetophenone, 1-(4-dodecylphenyl)-2-hydroxy-2-methylpropan-1-one, or 2-hydroxy-2-methyl-1-phenylpropan-1-one as a photoinitiator, are disclosed. These compositions have utility in optical coatings.

Abstract: Method of directly precipitating substantially pure beta HMX from a substantially anhydrous nitric acid solution without forming and recrystallizing polymorphic HMX. HMX dissolved in a solvent consisting essentially of anhydrous nitric acid is added to water which is seeded with crystals of beta HMX to substantially completely precipitate all the HMX from solution as beta HMX without forming crystals of the other polymorphic forms of HMX. A preferred reaction and apparatus for preparing HMX in anhydrous nitric acid is also disclosed.

Abstract: Metal amine complexes are formed from amines adhering to the general formulas ##STR1## by reaction with various metal salts. Prior to reaction with various metal salts, the above amines may first be reacted with a formaldehyde source or with a formaldehyde source followed by an epoxide or with an epoxide or with an epoxide followed by a formaldehyde source. The resultant metal amine complexes are then employed in asphalt compositions in order to increase the overall strength of such compositions.

Abstract: Tagging compounds (which function as both dyes and markers) having the following structures: ##STR1## wherein x is an integer between 0 and 3 inclusive, y is an integer between 1 and 3 inclusive, z is 0 or 1, and R is a straight or branched chain hydrocarbon having from 1 to 5 carbon atoms are disclosed. These compounds can be dissolved in a diluent at a concentration of from about 10 percent to about 30 percent, forming a concentrate which can be further dispersed in an organic liquid to form a final concentration of from about 1 ppm to about 15 ppm of said tagging compound in said liquid. Methods for detecting the presence of a tagged compound in an organic liquid are also disclosed.

Abstract: Reaction products of sulfur with an unsaturated reactant selected from d-limonene, 5-ethylidene-2-norbornene, styrene, and dicyclopentadiene, reacted at a temperature above the melting point of sulfur and below 159.degree. C. until chemically combined, then further reacted above the melting point of sulfur until solidified. The resulting products serve as vulcanizing agents when compounded with rubber. The unvulcanized rubber compounds exhibit less blooming and better adhesion to a variety of substrates than rubber compositions compounded with soluble or insoluble sulfur. Vulcanizates containing the present compositions and a method for increasing the adhesion of rubber to a substrate during a vulcanization process are also disclosed.

Abstract: Adduct of the formula:H.sub.3 GaNR.sub.3wherein each R is independently selected from lower alkyl having from 2 to about 4 carbon atoms, and a process for depositing gallium nitride, gallium arsenide, or gallium phosphide films, using the above adduct as a source of nitride (for the nitride film) and gallium. Arsenic and phosphorus compounds are also added for depositing gallium compounds of those elements. The process can also be performed using the analogous trimethylamine adduct.

Abstract: Reaction products of sulfur with an unsaturated reactant selected from d-limonene, 5-ethylidene-2-norbornene, styrene, and dicyclopentadiene, reacted at a temperature above the melting point of sulfur and below 159.degree. C. until chemically combined, then further reacted above the melting point of sulfur until solidified. The resulting products serve as vulcanizing agents when compounded with rubber. The unvulcanized rubber compounds exhibit less blooming and better adhesion to a variety of substrates than rubber compositions compounded with soluble or insoluble sulfur. Vulcanizates containing the present compositions and a method for increasing the adhesion of rubber to a substrate during a vulcanization process are also disclosed.

Abstract: Improved composition, curable to form a rocket engine liner. The uncured liner composition has a long pot life and cures rapidly.The composition comprises a hydroxyl terminated polybutadiene prepolymer; a diisocyanate curing agent for forming urethane linkages with said prepolymer; a trifunctional aziridine bond promoter; a filler; and a curing catalyst comprising maleic anhydride, magnesium oxide, and triphenyl bismuth.

Abstract: Tagging compounds (which function as both dyes and markers) having the following structures: ##STR1## wherein x is an integer between 0 and 3 inclusive, y is an integer between 1 and 3 inclusive, z is 0 or 1, and R is a straight or branched chain hydrocarbon are disclosed. These compounds can be dissolved in a diluent at a concentration of from about 10 percent to about 30 percent, forming a concentrate which can be further dispersed in an organic liquid to form a final concentration of from about 1 ppm to about 15 ppm of said tagging compound in said liquid. Methods for detecting the presence of a tagged compound in an organic liquid are also disclosed.

Abstract: Organometallic compounds having the formulas: ##STR1## wherein N is selected from phosphorus and arsenic, H is hydride, and X and Y are independently selected from hydride, lower alkyl cyclopentadienyl, and phenyl, except that Y cannot be hydrogen; andMR.sub.xwherein x is an integer from 2 to 4 inclusive, each said R substituent is independently selected from hydride, lower alkyl, phenyl, alkyl-substituted phenyl, cyclopentadienyl, and alkyl-substituted cyclopentadienyl, and M is selected from elements of Groups 2B, 2A, 3A, 5A, and 6A of the Periodic Table, except carbon, nitrogen, oxygen, and sulfur. The use of these compounds in chemical vapor deposition processes and methods for synthesizing these compounds are also disclosed.

Abstract: Compounds having the molecular formula:MR.sub.xwherein x is an integer from 2 to 4 inclusive, each said R substituent is independently selected from hydride, lower alkyl, phenyl, alkyl-substituted phenyl, cyclopentadienyl, and alkyl substituted cyclopentadienyl, at least two of said R substituents are different, and M is an element selected from Groups 2B or 3A of the Periodic Table, Bismuth, Selenium, Tellurium, Beryllium, and Magnesium, but excluding Aluminum, Bismuth, Selenium, and Tellurium if any R is hydride. The hybrid compound is used for metal organic chemical vapor deposition. The invention also includes a metal organic chemical vapor deposition process employing a hybrid of first and second compounds having the above formula, but wherein the R substituents of each compound can be like or unlike and M is selected from Groups 2B, 2A, 3A, 5A, and 6A of the Periodic Table except for Carbon, Nitrogen, Oxygen, and Sulfur.

Abstract: Electron beam curable polyurethane resin comprising the reaction product of a hydroxyl terminated polyester; a compound having ethylenic unsaturation and at least 2 hydroxyl moieties; optionally, a chain extender which is a lower aliphatic or cycloaliphatic diol; and an approximately stoichiometric proportion of an aliphatic, cycloaliphatic, or aromatic diisocyanate. The ethylenically unsaturated component has an essentially aliphatic backbone, and optionally can include carbamate linkages. Magnetic coatings incorporating these resins are adapted to be applied to a substrate, calendared, then crosslinked by exposure to electron beam radiation. Magnetic media made with such coatings are also disclosed. The present resins, and coatings made from them, have superior properties to other coatings of this type.