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| Number | Title | Issue Date |
| 5003093 | Process for making alkyl arsine compounds Alkyl arsines are made by reaction of arsine and an olefin in contact with acid catalyst. Products are mono and di-substituted arsines, e.g. alkyl and dialkyl arsines. The products contain practically no metallic or oxygenating impurities.... | 03/26/1991 |
| 4942252 | Synthesis of phosphorus and arsenic, halides and hydrides Method for synthesizing alkyl halides of phosphorus, arsenic, or antimony from the corresponding phosphorus, arsenic, or antimony alkyl and phosphorus, arsenic, or antimony halide. An improved synthesis of alkyl phosphorus or arsenic hydrides from the cor... | 07/17/1990 |
| 4916214 | Cationic complexes of technetium-99m The invention concerns cationic complexes of Technetium-99m with bidentate ligands (L), including complexes having the formulae [Tc(NO) X L2 ]+ and [Tc L3 ]+, which are of interest as heart imaging agents. The ... | 04/10/1990 |
| 4906762 | Process for producing trialkylarsenic compound According to the process of the present invention, trialkylarsenic compounds having a very high purity of usually over 99% can be obtained by using inexpensive, easily available arsenic oxides and without any complicated operations. The trialkylarsenic co... | 03/06/1990 |
| 4902486 | Novel gallium arsenide precursor and low temperature method of preparing gallium arsenide therefrom A novel gallium arsenide precursor has the formula R2 GaAs(SiR')2 wherein R is selected from the group consisting of alkyl substituted cycloaliphatic group and alkyl substituted aromatic group and R' is alkyl. Preferably, R is pentam... | 02/20/1990 |
| 4900855 | Chemical process for obtaining high purification of monoalkylarsines and dialkylarsines and purified mono- and dialkylarsines A method is provided for highly pure mono- and dialkylarsines, particularly removing substantially all silicon-containing impurities. A mono- or dialkylarsine is reacted with either an alkali metal or an alkali metal hydrocarbyl, thereby producing an alka... | 02/13/1990 |
| 4879397 | Novel gallium arsenide precursor and low temperature method of preparing gallium arsenide therefrom A novel gallium arsenide precursor has the formula R2 GaAs(SiR')2 wherein R is selected from the group consisting of alkyl substituted cycloaliphatic group and alkyl substituted aromatic group and R' is alkyl. Preferably, R is pentam... | 11/07/1989 |
| 4857655 | Process for making alkyl arsine compounds Alkyl arsines are made by reaction of arsine and an olefin in contact with acid catalyst. Products are mono and di-substituted arsines, e.g. alkyl and di-alkyl arsines. The products contain practically no metallic or oxygenating impurities.... | 08/15/1989 |
| 4798701 | Method of synthesizing amorphous group IIIA-group VA compounds A method of synthesizing amorphous Group IIIA-Group VA compounds. A first solution is prepared which consists of a tris(trialkylsilyl) derivative of either a Group IIIA or Group VA element dissolved in an organic solvent. A second solution is then prepare... | 01/17/1989 |
| 4772296 | Method of purifying and depositing group IIIa and group Va compounds to produce epitaxial films Thermally decomposable Group IIIa compounds are purified by conveying the relatively impure material through a prescrubber module, then heating the scrubbed Group IIIa compound and conveying same through a preconditioned gas chromatographic column packed ... | 09/20/1988 |
| 4734514 | Hydrocarbon-substituted analogs of phosphine and arsine, particularly for metal organic chemical vapor deposition 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; a... | 03/29/1988 |
| 4720560 | Hybrid organometallic compounds, particularly for metal organic chemical vapor deposition Compounds having the molecular formula: wherein 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,... | 01/19/1988 |
| 4720561 | Preparation of metal alkyls A method of preparing a metal alkyl of formula (R3 M)x where R3 represents three alkyl groups R which may be the same or different, M represents a Group III metallic element and x is 1 or 2, which method comprises (a) form... | 01/19/1988 |
| 4710576 | Thermochromic arsenic and antimony compounds There are disclosed compounds having the formula ##STR1## wherein R and R' are selected from the group consisting of (a) substituents having the formula R1 R2 R3 C-wherein R1 is H or an alkyl group of 1 to ... | 12/01/1987 |
| 4683317 | Photopolymerizable organic compositions and diaryliodonium salts used therein Aryliodonium salts resulting from the condensation of aryliodosotosylates and aryl ketones are provided which are used as photoinitiators to effect deep section UV cures. Deep section photopolymerizable organic materials are also provided which can be use... | 07/28/1987 |
| 4675416 | Ternary charge transfer complex Disclosed herein are organometallic ternary charge transfer complexes of the formula (I) wherein RX is an inorganic chloride or fluoride which contains at least one oxygen and/or sulfur atom and is capable of forming a complex salt a(R).multidot.MX.sub.(a... | 06/23/1987 |
| 4624701 | Coreduction process for incorporation of halogens into chalcogens and chalcogenide alloys A process for the preparation of halogenated chalcogens, or halogenated chalcogenide alloys which comprises providing in solution pure esters of the desired chalcogen, and subsequently subjecting a mixture of the esters and a chalcogenide halide to a core... | 11/25/1986 |
| 4611071 | Metal alkyl process Metal alkyls such as trimethyl arsine are made in improved yields by reacting a metal halide, e.g. AsCl3, with a Grignard reagent such as methyl magnesium bromide complexed with a polyether such as di(2-methoxyethyl)ether.... | 09/09/1986 |
| 4529490 | Photopolymerizable organic compositions and diaryliodonium ketone salts used therein Aryliodonium salts resulting from the condensation of aryliodosotosylates and aryl ketones are provided which are used as photoinitiators to effect deep section UV cures. Deep section photopolymerizable organic materials are also provided which can be use... | 07/16/1985 |
| 4529554 | Process for the preparation of nickel ylides containing ylide ligands with a sulfonated group V component A process is provided for preparing nickel ylides which are themselves novel compounds defined by the following Formula I: ##STR1## wherein R1, R2, R3, R4, R5, R6, R7 and R | 07/16/1985 |
| 4522932 | Phosphine and phosphonium compounds and catalysts Novel ligand materials and transition metal complexes thereof are disclosed which are useful as solvents and/or catalysts for various processes, including catalytic conversion processes for the conversion of hydrocarbons or carbon monoxide, such as the hy... | 06/11/1985 |
| 4518534 | Layered vanadium compounds containing phosphorus or arsenic and pendant organic groups A layered oxide containing vanadium together with phosphorus or arsenic and an organic group may be prepared which has a unique layered structure of the formula: VORAO3.nS or VOROAO3.nS where A is phosphorus or arsenic, S is a solven... | 05/21/1985 |
| 4507247 | Sulfonated Group Va ylides and process for preparing same There are provided novel sulfonated Group Va ylides defined by the following Formula I: ##STR1## wherein R1, R2, R3 and R4 are either alike or different members selected from the group consisting of hydroge... | 03/26/1985 |
| 4455291 | Accelerators for forming cationic technetium complexes useful as radiodiagnostic agents A composition for preparing cationic lipophilic technetium complexes is described. The composition comprises an admixture of (a) an accelerator compound selected from the group of water-soluble organic bidentate ligands that are capable of coordinating wi... | 06/19/1984 |
| 4394322 | Group VA ylides and process for preparing same There are provided novel Group VA ylides defined by the following Formula I: ##STR1## wherein R1, R2, R3, R4 and R5 are either alike or different members selected from the group consisting of hyd... | 07/19/1983 |
| 4377528 | Group VA salts and process for preparing same There are provided novel salts defined by the following Formula I: ##STR1## wherein R1, R2, R3, R4 and R5 are either alike or different members selected from the group consisting of hydrogen, alkyl ... | 03/22/1983 |
| 4377529 | Sulfonated group VA ylides and process for preparing same There are provided novel sulfonated group Va ylides defined by the following Formula I: ##STR1## wherein R1, R2, R3, and R4 are either alike or different members selected from the group consisting of hydrog... | 03/22/1983 |
| 4301318 | Process for recovering oligomerization product Ammonium hydroxide is used to remove nickel ylide residue from an oligomerization reaction product obtained by contacting ethylene with a nickel ylide catalyst under oligomerization conditions. The oligomerization reaction product is contacted with ammoni... | 11/17/1981 |
| 4294989 | Methylcyclohexyl-O-anisylphosphine Process for the homogeneous catalytic hydrogenation of ଲ-substituted--acylamido-acrylic acids which yields, after hydrogenation, an optically active mixture. The process comprises the hydrogenation of ଲ-substituted--acylamido-acr... | 10/13/1981 |
| 4293502 | Nickel ylides A new group of nickel ylides is provided that is highly active at relatively low operating temperatures and pressures in the oligomerization of ethylene. The compounds can be defined by the following Formula I: ##STR1## wherein R1, R2... | 10/06/1981 |
| 4265827 | Catalytic asymmetric hydrogenation Process for the homogeneous catalytic hydrogenation of -substituted--acylamido-acrylic acids which yields, after hydrogenation, an optically active mixture. The process comprises the hydrogenation of ଲ-substituted-ଲ-acylamido-acr... | 05/05/1981 |
| 4261919 | Catalytic asymmetric hydrogenation Process for the homogeneous catalytic hydrogenation of ଲ-substituted--acylamido-acrylic acids which yields, after hydrogenation, an optically active mixture. The process comprises the hydrogenation of ଲ-substituted--acylamidoacry... | 04/14/1981 |
| 4161478 | Photoinitiators Onium salts of Group VIa elements having an MF6 -anion, where M is selected from P, As and Sb, have been found to be photo active under ultraviolet light. These onium salts can be employed as cationic photoinitiators when used with a variety of... | 07/17/1979 |
| 4005232 | Coatings of metal phosphates on metals or glass A metal phosphate coating is applied to a glass article. A liquid composition containing at least in part an organic component and a metal compound having a metal with an atomic number of 12, 14, 20-32, 39-50, 56-80, 90 or 92 and an oxyacid of phosphorus ... | 01/25/1977 |
| 3955017 | Method of coating metal phosphates on organic polymeric substrates An organic polymer article has a surface coating of a metal phosphate. The coating has a thickness in the range of 0.01 to 5 microns; preferably, the metal phosphate comprises a mixture of iron and titanium orthophosphate, although the metal may be chosen... | 05/04/1976 |
| 3931265 | Process for producing anionic metal-containing sulfonates A process for producing oil-soluble anionic metal sulfonates is disclosed wherein an anionic metal acid anhydride or its corresponding hydrate is reacted with an oil-soluble sulfonic acid and a polyamine compound to produce the desired metal sulfonate. Th... | 01/06/1976 |
