Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 4148819 | Aliphatic diisocyanates Covers a diisocyanate having the following structural formula: ##STR1## WHERE X IS AN AVERAGE NUMBER RANGING FROM ABOUT 6 TO 50, AND Y AND Z ARE AVERAGE NUMBERS RANGING FROM ABOUT 1 TO ABOUT 20, WITH THE SUM OF Y AND Z BEING FROM ABOUT 6 TO ABOUT 40.... | 04/10/1979 |
| 4147857 | Epoxy cure with polyamine-polyether succinimide systems An adhesively superior epoxy resin composition comprises a vicinal polyepoxide, a curing amount of an amine curing agent, and an effective amount of an additive comprising a polyoxyalkylenepolyamine-maleic anhydride condensation product having thioureide,... | 04/03/1979 |
| 4146701 | Polyether diureide epoxy additives An epoxy resin having superior resistance to thermal shock comprises a vicinal polyepoxide, a curing amount of a certain bicyclic anhydride and an effective amount of an additive comprising a polyoxyalkylenepolyamine-maleic anhydride condensation product ... | 03/27/1979 |
| 4146700 | Diamides of polyoxyalkylenepolyamine-urea condensates as epoxy resin additives The adhesion properties of amine-cured epoxy resins are unexpectedly enhanced by addition of certain diamides of polyoxyalkylenepolyamine-urea condensates. The adhesively superior epoxy resin composition comprises a vicinal polyepoxide, a curing amount of... | 03/27/1979 |
| 4146560 | Catalyst pellet stabilization in the preparation of polyamines from polynitriles Covers a process for preparing polyamines from the corresponding polynitriles via a pelleted cobalt-copper-chromium hydrogenation catalyst which comprises contacting a polynitrile with hydrogen in presence of said catalyst and a stabilizing agent comprisi... | 03/27/1979 |
| 4144035 | Detergent and corrosion inhibited motor fuel composition Motor fuel composition comprising a mixture of hydrocarbons in a gasoline boiling range containing a compound represented by the formula: ##STR1## in which R is an aliphatic hydrocarbon radical having from about 8 to 20 carbon atoms, X and Y alternat... | 03/13/1979 |
| 4143071 | High tertiary amine content compositions useful as polyurethane catalysts Covers compounds of the formula ##STR1## where R" is lower alkyl, R is hydrogen or lower alkyl and Y is selected from the group consisting of CN, CONH2, CO2 R', CONR'2 and COR' where R' independently is hydrogen, lowe... | 03/06/1979 |
| 4141885 | Bis ureide of a polyoxyalkylene polyamine as an epoxy additive The resistance to thermal shock of anhydride cured epoxy resins is improved by the addition of a bis ureide of a polyoxyalkylene polyamine additive. The heat deflection properties of the epoxy resins are not appreciably compromised by the addition of the ... | 02/27/1979 |
| 4139698 | Aminated starch derivatives Covers an aminated starch derivative prepared by the reductive amination of an oxidized starch by reaction with ammonia or ammonium hydroxide. Also, covers a process of preparing said derivative.... | 02/13/1979 |
| 4139524 | Bis ureide of a polyoxyalkylene polyamine as an epoxy additive The adhesive strength of amine-cured epoxy resins are improved by the addition of a bis ureide of a polyoxyalkylene polyamine additive. The improved epoxy resin composition comprises a vicinal polyepoxide, an effective amount of a polyamine curing agent, ... | 02/13/1979 |
| 4137265 | Water-insoluble nitrogen-containing polyols A group of water-insoluble nitrogen-containing polyols is provided which are capable of self-catalyzed reaction with organic polyisocyanates to form rigid polyurethane foams of excellent dimensional strength. The polyols of this group are prepared by reac... | 01/30/1979 |
| 4136996 | Directional drilling marine structure Marine structure adapted to be fixed to the ocean floor for drilling wellbores into the latter. A drill conductor cage is removably positioned within the marine structure at a submerged position. The cage holds one or more drill string guides in a manner ... | 01/30/1979 |
| 4136240 | Metallic quaternary ammonium carboxylates as polyisocyanurate catalysts Covers the use of metallic quaternary ammonium carboxylate salts as polyisocyanurate catalysts. Said catalysts are useful in promoting the reaction between a polyol and an aromatic polyisocyanate to prepare a polymer containing recurring isocyanurate and ... | 01/23/1979 |
| 4134854 | Nonionic surfactant with low pour point Nonionic surface-active agents prepared by the addition of ethylene oxide to mixtures of alcohols containing from 8 to 20 carbon atoms are often solids or mixtures of solids and liquids at room temperatures. The pour points of such nonionic surfactants ca... | 01/16/1979 |
| 4134916 | N-polyalkoxyalkyl acrylamides or methacrylamides Covers a new composition of matter comprising an acrylamide or methacrylamide monomer characterized by the following structural formula: ##STR1## where R1 is hydrogen or methyl, R2 and R3 are hydrogen or lower alkyl, ... | 01/16/1979 |
| 4133803 | Polyoxypropylene polyamine polyamide thermoplastic adhesives A novel thermoplastic adhesive having a melting point between about 20° C to about 180° C. is disclosed which is comprised of a resinous polyamide reaction product of a polyoxypropylene polyamine selected from diamines, triamines, or mixtures thereof ha... | 01/09/1979 |
| 4129716 | Urea-aldehyde resins A novel polyether containing urea-aldehyde resin useful in plastics, sealants, molds, foams and coatings. The novel composition comprises the condensation product of a ureido-terminated polyoxyalkylene and an aldehyde. The ureido terminated polyoxyalkylen... | 12/12/1978 |
| 4128525 | Thermoplastic adhesives Novel thermoplastic adhesive components, prepared from inexpensive and readily available synthetic materials, having melting points between about 20° C. to about 180° C. and broad ranges of hardness, flexibility and compatibility are disclosed. The nove... | 12/05/1978 |
| 4127514 | Process for accelerated cure of epoxy resins A process for the accelerated cure of an epoxy resin is disclosed. The resulting epoxy resin may be used in protective coatings, adhesives, seamless and terrazo flooring and caulking and sealing compositions. The resulting resin is also useful, for exampl... | 11/28/1978 |
| 4124617 | Process for preparing unsaturated aliphatic esters from aliphatic dienes This invention relates to the selective production of fatty acid derivatives from aliphatic diene substrates, such as 1,3-butadiene, in the presence of dual-function homogeneous palladium complexes and certain classes of organic tertiary nitrogen bases.... | 11/07/1978 |
| 4124758 | Aminated hydroxyalkyl cellulose Covers aminated cellulose derivatives prepared by the reductive amination of a hydroxyalkyl cellulose.... | 11/07/1978 |
| 4122253 | Aminated starch derivatives Covers an aminated starch derivative prepared by the reductive amination of an oxidized starch by reaction with a dialkyl amine. Also, covers a process of preparing said derivative.... | 10/24/1978 |
| 4122069 | Polyether dihydroxyalkyl carbamate epoxy additive for epoxy resins The adhesion properties of amine-cured epoxy resins are unexpectedly enhanced by addition of certain di-hydroxyalkyl carbamate terminated polyether additives. The adhesively superior epoxy resin composition comprises a vicinal polyepoxide, a curing amount... | 10/24/1978 |
| 4122068 | Polyether dihydroxyalkyl carbamate epoxy additive for epoxy resins Resistance to thermal shock of certain anhydride cured epoxy resins is unexpectedly enhanced by addition of certain polyether dihydroxyalkyl carbamate additives. This superior resistance does not appreciably compromise heat deflection properties. The resi... | 10/24/1978 |
| 4119615 | Thermoplastic adhesive polyoxamide from polyoxypropylene polyamine Covers a novel thermoplastic adhesive composition comprising a polyoxamide formed by reacting a polyoxypropylene polyamine selected from the group consisting of diamines, triamines and mixtures thereof, and having an average molecular weight of about 190 ... | 10/10/1978 |
| 4119412 | Ammonia absorption process A process is disclosed whereby a gas stream from the process for the manufacture of a morpholine compound by the catalytic reaction of a dialkylene glycol with ammonia to form a morpholine compound in the presence of hydrogen is disclosed. The ammonia is ... | 10/10/1978 |
| 4118286 | Process for reducing the acidity of organic polymeric isocyanates In a process for purifying and reducing the acidity of a polymethylene polyphenylpolyisocyanate mixture wherein the mixture is subjected to a distillation step, such as by passing a flowing stream of a crude polymethylene polyphenylpolyisocyanate mixture ... | 10/03/1978 |
| 4117227 | Production of N-(substituted) morpholine An improved process is disclosed for selectively producing an N-(substituted) morpholine compound from the corresponding N-(substituted) diethanolamine compound. The improved process includes contacting the N-(substituted) diethanolamine compound with a c... | 09/26/1978 |
| 4116938 | Polyether diureide epoxy additives Resistance to thermal shock of certain anhydride cured epoxy resins is unexpectedly enhanced by addition of certain polyether diureide additives. This superior resistance does not appreciably compromise heat deflection properties. The resins comprise a vi... | 09/26/1978 |
| 4115360 | Polyether urea epoxy additives The adhesion properties of amine-cured epoxy resins are unexpectedly enhanced by addition of certain amino terminated polyether ureylene additives. The adhesively superior epoxy resin composition comprises a vicinal polyepoxide, a curing amount of an amin... | 09/19/1978 |
| 4115361 | Polyether urea epoxy additives The adhesion properties of amine-cured epoxy resins are unexpectedly enhanced by addition of certain amino terminated polyether succinimide additives. The adhesively superior epoxy resin composition comprises a vicinal polyepoxide, a curing amount of an a... | 09/19/1978 |
| 4115446 | Polyether polyureides Novel polyether polyureides useful in the manufacture of plastics, sealants, molds, foams and coatings. The novel composition comprises a mono- or di-substituted ureido-terminated polyoxyalkylene prepared by reacting a primary amine-terminated polyoxyalky... | 09/19/1978 |
| 4115301 | Cross-linker for flexible and semi-flexible polyurethane foams Novel flexible and semi-flexible polyurethane foams having good hardness properties and superior resistance to permanent set are disclosed. The novel foams are produced by reacting an organic polyisocyanate with a polyether polyol and employing as a cross... | 09/19/1978 |
| 4113445 | Process for the partial oxidation of liquid hydrocarbonaceous fuels The reaction zone of a free-flow refractory lined partial oxidation gas generator is preheated by the complete combustion of fuel gas, supplied by means of a preheat burner, with air at atmospheric pressure. The preheat burner is replaced by the main proc... | 09/12/1978 |
| 4113697 | Polyether diamide epoxy additives Resistance to thermal shock of certain anhydride cured epoxy resins is unexpectedly enhanced by addition of certain polyether diamide additives. This superior resistance does not appreciably compromise heat deflection properties. The resins comprise a vic... | 09/12/1978 |
| 4110310 | Polyether diamide epoxy additives The adhesion properties of amine-cured epoxy resins are unexpectedly enhanced by addition of certain polyether amide additives. The adhesively superior epoxy resin composition comprises a vicinal polyepoxide, a curing amount of an amine curing agent, and ... | 08/29/1978 |
| 4110313 | Epoxy curing agent Epoxy resins, particularly those of the polyglycidyl ether of a polyhydric phenol type, are cured by incorporating therein a polyoxyalkylenepolyamine usually with an accelerator such as a combination of piperazine and an alkanolamine. Rapidity of curing i... | 08/29/1978 |
| 4110352 | Boride catalyst for epoxidizing olefinic compounds A novel catalyst material of a boron containing substance for catalyzing the liquid phase oxidation of an olefin with an organic hydroperoxide to the corresponding oxirane is disclosed. The novel catalyst materials are characterized as binary or ternary b... | 08/29/1978 |
| 4110359 | Production of cleaned and purified synthesis gas and carbon monoxide A continuous process for simultaneously producing a stream of cleaned purified synthesis gas having a mole ratio H2 /CO in the range of about 2 to 12, and a separate stream of CO-rich gas. In one embodiment of the process, cleaned and purified ... | 08/29/1978 |
| 4110371 | Preparation of oxydicarboxylic acid salts Oxyethylene dicarboxylic acid alkali metal salts are prepared from the corresponding oxydiethylene or polyoxyethylene diol and an aqueous alkali metal hydroxide in the presence of a catalytically effective amount of a nickel-copper-chromia catalyst at tem... | 08/29/1978 |
