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Actor Marlon Brando has four patents, all named "Drumhead tensioning device and method."
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| Number | Title | Issue Date |
| 4173551 | Heat curable compositions Aromatic onium salts, such as diaryliodonium salts, have been found to be effective thermal initiators for the polymerization of a variety of cationically polymerizable materials including epoxides, cyclic ethers, phenol formaldehyde resins, etc., when us... | 11/06/1979 |
| 4171339 | Process for preparing a polycrystalline diamond body/silicon carbide substrate composite A mass of diamond crystals in contact with a mass of eutectiferous silicon-rich alloy and a silicon carbide ceramic substrate are disposed in a container and placed within a pressure transmitting powder medium. Pressure is applied to the powder medium res... | 10/16/1979 |
| 4170711 | Brominated biphenol derivatives Monomeric and polymeric halogenated organic compounds derived from 2,2',6,6'-tetrabromo-3,3',5,5' -tetraalkyl-4,4'-biphenols are described. The derivatives are useful in their monomeric and polymeric form as flame retardant additives and/or concentrates f... | 10/09/1979 |
| 4168957 | Process for preparing a silicon-bonded polycrystalline diamond body A mass of diamond crystals in contact with a mass of eutectiferous silicon-rich alloy are disposed in a container and placed within a pressure transmitting powder medium. Pressure is applied to the powder medium resulting in substantially isostatic pressu... | 09/25/1979 |
| 4167399 | Process for preparing a polycrystalline diamond body A cavity of predetermined size is formed in a compressed pressure transmitting powder medium, a mass of diamond crystals in contact with a mass of elemental silicon are disposed within the cavity and additional pressure transmitting powder is placed over ... | 09/11/1979 |
| 4165422 | Acyl capped quinone-coupled polyphenylene oxides New polymers comprising acyl capped quinone-coupled polyphenylene oxides are described. The resulting new polymers have improved color and in combination with styrene resins provide thermoplastic compositions having improved chemical and physical properti... | 08/21/1979 |
| 4164424 | Alumina core having a high degree of porosity and crushability characteristics A core for investment casting directionally solidified eutectic and superalloy material consists of alumina which has a porous microstructure in which the grain morphology is characteristic of grains which have undergone vapor phase transport action.... | 08/14/1979 |
| 4163833 | Method for making aromatic cyclic polyformal There is provided, a method for making cyclic poly-formal substantially free of linear polyformal by agitating a plural phase mixture of an aqueous alkali metal salt solution of bisphenol in contact with methylene halide and a phase transfer catalyst. The... | 08/07/1979 |
| 4163037 | Method for making thermoplastic foams Foamable blends are provided of high performance thermoplastic polymers such as polycarbonates, polyesters, etc., and an effective amount of a dihydrooxadiazinone blowing agent. The blends can be melt extruded into pellets and sheet and converted into the... | 07/31/1979 |
| 4163030 | Novel polyetheramide-imide phenolic resin blends This invention is concerned with a new class of polyetheramide-imide phenolic resin blends. More particularly, the invention is concerned with polyetheramide-imide phenolic resin blends which exhibit melt viscosities suitable for solventless-dry powder co... | 07/31/1979 |
| 4162918 | Rare earth metal doped directionally solidified eutectic alloy and superalloy materials Less than 3 weight percent of a rare earth metal is employed in doping a directionally solidified eutectic alloy or a superalloy material to minimize the formation of a metal-ceramic reaction layer during casting and solidification thereof.... | 07/31/1979 |
| 4162173 | Molten salt leach for removal of inorganic cores from directionally solidified eutectic alloy structures Cores made of either Y2 O3, Y3 Al5 O12, LaAlO3, MgAl2 O4 or Al2 O3 are removed from castings of advanced superalloy materials by immersion in a molten... | 07/24/1979 |
| 4161498 | Blends of low molecular weight polyalkylene terephthalate resins and organopolysiloxane-polycarbonate block copolymers A blend comprising a low molecular weight polyalkylene terephthalate resin and an organopolysiloxane-polycarbonate block copolymer having improved impact and heat distortion properties. The polymer blends can be molded or formed into films, sheets, fibers... | 07/17/1979 |
| 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 |
| 4161469 | Polyalkylene terephthalate and organopolysiloxane-polycarbonate block copolymer blends A blend comprising a polyalkylene terephthalate resin and an organopolysiloxane-polycarbonate block copolymer having improved impact and heat distortion properties. The polymer blends can be molded or formed into films, sheets, fibers, laminates, or other... | 07/17/1979 |
| 4161412 | Method of heat treating γ/γ'- eutectic nickel-base superalloy body A method of improving the mechanical properties of a γ/γ'- eutectic nickel-base superalloy body containing a γ-phase, a γ'-phase, and an aligned molybdenum fiber -phase which comprises the steps (a) heating the body to a temperature... | 07/17/1979 |
| 4161405 | Method of cationally polymerizing oxirane free materials with group VIa onium salts Cationic polymerization of a variety of organic materials such as vinyl monomers, prepolymers, cyclic ethers, cyclic esters, cyclic sulfides and organosilicon cyclics can be achieved by the use of certain radiation sensitive aromatic onium salts of Group ... | 07/17/1979 |
| 4160785 | Reduction of diimino compounds to diamino compounds Organic diamines can be prepared by hydrogenating a preformed diimine in the presence of methanol and in the further presence of the tertiary alkyl mono-amine used to make the diimino compound. The diamino compounds thus obtained are useful as catalysts i... | 07/10/1979 |
| 4160679 | Migration of fine liquid wires by thermal gradient zone melting through doped surfaces Uniform initiation and migration of fine liquid wires by thermal gradient zone melting processing through a solid body of semiconductor material is enhanced by a heavily doped region of the body which includes the surface of initiation of the migration.... | 07/10/1979 |
| 4160110 | Method for stabilizing bisphenols under melt or distillation conditions A process is provided for improving the stability of bisphenols under melt or distillation conditions by employing an aromatic anhydride such as phthalic anhydride as a stabilizing agent. A reduction is effected in the rate of formation of phenol and othe... | 07/03/1979 |
| 4160088 | Dihydrooxadiazinones and method for making Dihydrooxadiazinones are provided which can be used as blowing agents in various thermoplastic polymeric materials to produce high performance thermoplastic foams. A ketone having at least one -hydrogen atom is halogenated and hydroxylated to produ... | 07/03/1979 |
| 4159916 | Thermal migration of fine lined cross-hatched patterns Mutually perpendicular, intersecting, straight, fine molten wires, (ࣘ0.002" in width) can be migrated through a solid matrix body of semiconductor material of (100) planar orientation by migration along a unidirectional thermal gradient which is establi... | 07/03/1979 |
| 4159216 | Enhanced line stability by alloying of deposition A saturated or a supersaturated solution of the material of a solid body of semiconductor material in a layer of metal to be migrated by thermal gradient zone melting processing is utilized to achieve uniform penetration of fine lines (1 mil in width and ... | 06/26/1979 |
| 4159215 | Droplet migration doping using reactive carriers and dopants Aluminum is employed as a carrier metal for antimony in order to N-type dope semiconductor material by temperature gradient zone melting (TGZM) processing.... | 06/26/1979 |
| 4159213 | Straight, uniform thermalmigration of fine lines Straight, fine molten wires ( | 06/26/1979 |
| 4158728 | Heterocyclic-coupled polymers of polyphenylene oxides Heterocyclic-coupled linear, branched and/or crosslinked polymers of polyphenylene oxides are described which comprise poly-functional heterocyclic radicals coupled with mono- and/or polyphenoxy radicals derived from (a) polyphenylene oxides having an ave... | 06/19/1979 |
| 4158094 | Dihydrooxadiazinones and method for making Dihydrooxadiazinones are provided which can be used as blowing agents in various thermoplastic polymeric materials to produce high performance thermoplastic foams. A ketone having at least one -hydrogen atom is halogenated and hydroxylated to produ... | 06/12/1979 |
| 4157997 | Polyalkylene terephthalate and organopolysiloxane-polycarbonate block copolymer blends A blend comprising a polyalkylene terephthalate resin, an organopolysiloxane-polycarbonate block copolymer and a calcium carbonate filler having improved warp and impact properties. The polymer blends can be molded or formed into films, sheets, fibers, la... | 06/12/1979 |
| 4157996 | Coating solution of polyetherimide-forming monomers Disclosed is a solution including an aromatic bis (ether dicarboxylic acid) component, an organic diamine component and a solvent system including a water-soluble organic solvent component, which may be a dipolar aprotic solvent or a monoalkyl ether of et... | 06/12/1979 |
| 4156790 | Isomerization of dihydroxydiphenyl compounds Isomerization of an ortho, para-isomer of a dihydroxydiphenyl chloroethylene compound to the corresponding para, para-isomer can be effected by treatment of the former with trifluoromethanesulfonic acid in the presence of phenol.... | 05/29/1979 |
| 4156773 | Process for capping quinone-coupled polyphenylene oxides A process is disclosed which provides for an increase in the oxidative and/or thermal stability of quinone coupled polyphenylene oxides which comprises contacting quinone-coupled polyphenylene oxides with a capping agent in the presence of a water soluble... | 05/29/1979 |
| 4156772 | Process of forming acyl-coupled polymers of quinone-coupled polyphenylene oxides A process of forming linear, branched and/or cross-linked acyl-coupled polymers of quinone-coupled polyphenylene oxides is described which comprises contacting di- and/or tri-functional acyl halides with quinone-coupled polyphenylene oxides having an aver... | 05/29/1979 |
| 4156771 | Process of forming heterocyclic-coupled block polymers of polyphenylene oxide A process of forming heterocyclic-coupled linear, branched and/or cross-linked polymers of polyphenylene oxides is described which comprises contacting heterocyclic halides with (a) polyphenylene oxides having an average hydroxyl group per molecule value ... | 05/29/1979 |
| 4156770 | Acyl coupled polymers of quinone-coupled polyphenylene oxides Linear, branched and/or cross-linked acyl coupled polymers of quinone-coupled polyphenylene oxides are described which comprise di- and/or tri-functional acyl radicals coupled with polyphenoxy radicals, said polyphenoxy radicals being derived from quinone... | 05/29/1979 |
| 4156764 | Poly(hydroxy) telechelic styrene polymer process A poly(hydroxy) telechelic styrene polymer polymerization process comprising contacting an olefin, a free radical polymerization initiator, and a poly(hydroxyorgano) polysulfide is described. The poly(hydroxy) terminated styrene polymers can be end-capped... | 05/29/1979 |
| 4156699 | Phosphorus containing block polymers of polyphenylene oxide Phosphorus containing linear, branched and/or crosslinked block polymers of polyphenylene oxides are described which comprise di- and/or tri-functional phosphoryl radicals coupled with mono- and/or polyphenoxy radicals, said polyphenoxy radicals being der... | 05/29/1979 |
| 4156623 | Method for increasing the effectiveness of a magnetic field for magnetizing cobalt-rare earth alloy A cobalt-rare earth alloy sintered product is substantially magnetized by heating or cooling it to a temperature at which its intrinsic coercive force Hci is significantly lower than at room temperature, applying a relatively small magnetizing ... | 05/29/1979 |
| 4156614 | Alumina-based ceramics for core materials Cores made of alumina-based ceramics, such as ଲ-alumina materials, are substantially non-reactive with directionally solidified eutectic and superalloy materials, do not cause hot cracking of the same, and are easily leachable from the cast metal.... | 05/29/1979 |
| 4156099 | Process for preparing dihydroxydiphenyl chloroethylenes The compound 1,1-dichloro-2,2-bis-(4-hydroxyphenyl)ethylene can be prepared by the reaction of 1,1-dichloro-2,2-diphenoxy ethylene and phenol in the presence of triflic acid. The formed dihydroxydiphenyl chloroethylene can be treated with a phosgenating a... | 05/22/1979 |
| 4156098 | Purification of bisphenol-A Impure bisphenol-A can be purified by treatment of a phenol adduct of the latter with methylene chloride and then recovering the purified bisphenol-A.... | 05/22/1979 |
