...that after Walter Hunt patented the safety pin in 1849, he sold the rights to it for $400?
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| Number | Title | Issue Date |
| 5047175 | Salt composition and explosives using same Salt compositions are disclosed which comprise: (A) at least one salt moiety derived from (A)(I) at least one high-molecular weight polycarboxylic acylating agent, said acylating agent (A)(I) having at least one hydrocarbyl substituent having an average o... | 09/10/1991 |
| 5046846 | Method and apparatus for spectroscopic comparison of compositions A method of analysis of and an apparatus for analysing a sample comprising the steps of: (A) examining at least one characteristic of a sample as a function of a variable parameter to obtain data, (B) normalizing the data with respect to a model, (C) maki... | 09/10/1991 |
| 5047457 | Acrylate polymer modified asphalt compositions Modified asphalt compositions are described which comprise (A) asphalt, and (B) a minor effective amount, sufficient to improve the durability of the asphalt in service, of at least one hydrocarbon-soluble acrylate polymer of the formula ##STR1## wh... | 09/10/1991 |
| 5039436 | Coupled polyamine lubricant additives derived from hydrocarbyl polynitriles and polyamines Coupled polyamine additives for lubricants, fuels and functional fluids have been discovered. The coupled polyamines are prepared by the cyclization reaction of at least one reactant polyamine reactant with at least one hydrocarbyl polynitrile. This coupl... | 08/13/1991 |
| 5025085 | Curable aminoplast compositions and catalysts for curing same The present invention relates to a curable composition comprising: (A) at least one aminoplast resin; and (B) an amount effective to cure the composition of at least one catalyst which is a sulfo acid, or an anhydride, ester, ammonium salt or metal salt of the... | 06/18/1991 |
| 5015368 | Ore flotation process using carbamate compounds The present invention relates to an improved process for beneficiating an ore. In particular, the process is useful for beneficiating ores and recovering metal values such as gold, copper, lead, molybdenum, zinc, etc., from the ores. In one embodiment, th... | 05/14/1991 |
| 5008028 | Liquid compositions containing carboxylic esters A liquid composition is described which comprises (A) a major amount of a fluorine containing hydrocarbon containing one or two carbon atoms, and (B) a minor amount of a soluble organic lubricant comprising at least one carboxylic ester compound characterized ... | 04/16/1991 |
| 4997969 | Carbamate additives for lubricating compositions Compounds which improve extreme pressure and anti-wear properties of lubricating compositions are described. The compounds include the compounds of the following formula as well as statistical mixtures of those compounds: ##STR1## wherein R... | 03/05/1991 |
| 4992188 | Tertiary amide-containing compositions for refrigeration systems This invention relates to a composition comprising: (A) a major amount of a fluorine-containing hydrocarbon containing one or two carbon atoms; and (B) a minor amount of a soluble tertiary amide represented by the formula ##STR1## wherein a is one or two,... | 02/12/1991 |
| 4976881 | Coupled polyamine lubricant additives derived from hydrocarbyl polynitriles and polyamines Coupled polyamine additives for lubricants, fuels and functional fluids have been discovered. The coupled polyamines are prepared by the cyclization reaction of at least one reactant polyamine reactant with at least one hydrocarbyl polynitrile. This coupl... | 12/11/1990 |
| 4963282 | Liquid compositions containing thiocarbamates A liquid composition is described which comprises (A) a major amount of at least one fluorine containing hydrocarbon containing one or two carbon atoms; and (B) a minor amount of at least one soluble organic lubricant comprising at least one organic thiocarbam... | 10/16/1990 |
| 4943303 | Cetane improver A cetane improver for diesel fuels is a sulfur containing compound having at least one electron withdrawing group therein. The electron withdrawing group desirably is a carbonyl group.... | 07/24/1990 |
| 4941986 | Liquid compositions containing organic nitro compounds A liquid composition is described which comprises (A) a major amount of at least one fluorine containing hydrocarbon containing one or two carbon atoms; and (B) a minor amount of a soluble organic lubricant comprising at least one organic nitro compound charac... | 07/17/1990 |
| 4938887 | Liquid refrigerant compositions This invention relates to a liquid composition comprising (A) a major amount of a fluorine-containing hydrocarbon, and (B) a minor amount of soluble organic lubricant free of acetylenic and aromatic unsaturation and comprising a cyclic compound characterized by ... | 07/03/1990 |
| 4938884 | Coupled phosphorus-containing amides Coupled amides useful as lubricating additives such as load carrying agents and/or extreme pressure agents have the formula ##STR1## wherein X1, X2, and X3, independently, is O or S; wherein R1 and R2 | 07/03/1990 |
| 4927554 | Liquid compositions containing organic sulfones and sulfoxides A liquid composition is described which comprises (A) a major amount of a fluorine containing hydrocarbon containing one or two carbon atoms, and (B) a minor amount of a soluble organic lubricant free of acetylenic and aromatic unsaturation and comprising at l... | 05/22/1990 |
| 4921992 | Process for manufacturing amides Amide compounds useful as additives in lubricating fluids as extreme pressure/antiwear agents are produced on a manufacturing scale. The amides are produced by simultaneously adding together and reacting a phosphorus-containing acid and aqueous acrylamide... | 05/01/1990 |
| 4919178 | Explosive emulsion Emulsifiers are disclosed which comprise the reaction product of component (I) with component (II). Component (I) comprises the reaction product of certain carboxylic acids or anhydrides, or ester or amide derivatives thereof, with ammonia, at least one a... | 04/24/1990 |
| 4906392 | Coupled polyamine lubricant additives derived from hydrocarbyl polynitriles and polyamines Coupled polyamine additives for lubricants, fuels and functional fluids have been discovered. The coupled polyamines are prepared by the cyclization reaction of at least one reactant polyamine reactant with at least one hydrocarbyl polynitrile. This coupl... | 03/06/1990 |
| 4889880 | Modified asphalt compositions Modified asphalt compositions are described which comprise (A) asphalt, and (B) a minor amount, sufficient to reduce or retard degradation of the asphalt in service, of at least one polymer derived from a butene having a weight average molecular weight (Mw) of... | 12/26/1989 |
| 4880553 | Methylene linked aromatic pour point depressant Compositions useful as pour point depressants, novel compounds within such compositions, and processes for making same, as well as lubricant oil compositions containing same, are disclosed. The novel compounds are encompassed by the general structural for... | 11/14/1989 |
| 4879022 | Ore flotation process and use of mixed hydrocarbyl dithiophosphoric acids and salts thereof The present invention relates to an improved process for beneficiating an ore containing sulfide materials with selective rejection of pyrite, pyrrhotite and other metals and gangue. In particular, the process is useful for beneficiating ores and recoveri... | 11/07/1989 |
| 4876374 | Process for manufacturing amides Amide compounds useful as additives in lubricating fluids as extreme pressure/antiwear agents are produced on a manufacturing scale. The amides are produced by simultaneously adding together and reacting a phosphorus-containing acid and aqueous acrylamide... | 10/24/1989 |