Celebrity Inventors
Glam girl Heddy Lamar may have used her good looks to good effect on the silver screen, but she put her smarts to better use as an inventor. During World War II, she co-patented a frequency-switching system for torpedo guidance that was considered years ahead of its time.
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| Number | Title | Issue Date |
| 7049435 | Extractive methods for purifying sucralose The present invention relates to novel extractive methods for purifying sucralose. The present invention also relates to compositions comprising the sucralose preparations made by the methods of the present invention. ... | 05/23/2006 |
| 6998480 | Process for improving sucralose purity and yield This invention relates to processes for purifying sucralose by the use of an initial non-crystallization purification procedure followed by three or more sequential crystallization steps and recycle of the mother liquor remaining from each crystallization step to th... | 02/14/2006 |
| 6794540 | Process for the preparation of sorbic acid A process for the preparation of sorbic acid by thermal cleavage of the polyester prepared from crotonaldehyde and ketene, in the presence of a solvent and of an amine as catalyst with simultaneous distillation out of the sorbic acid formed and of the solvent throug... | 09/21/2004 |
| 6673963 | Process for preparing sorbic acid by thermal cleavage The invention relates to a process for preparing sorbic acid by thermal cleavage in a solvent of the polyester prepared from crotonaldehyde and ketene, the cleavage of the polyester being carried out in the presence of 20 to 100% by weight of a secondary ... | 01/06/2004 |
| 6652921 | Wood containing fixed sorbic acid or sorbic acid salts The present invention relates to wood which contains a sorbic acid store and to processes for producing the sorbic acid store in the wood or on the surface of the wood. The present invention also relates to a process for using sorbic acid and its salts fo... | 11/25/2003 |
| 6652820 | Methods of making cesium salts and other alkali metal salts A method of making a cesium salt is described and involves reacting a cesium sulfate containing solution with lime to form 1) a solution containing at least cesium hydroxide and 2) a residue comprising calcium sulfate. The method further involves removing... | 11/25/2003 |
| 6590122 | Processes for producing polyesters and producing sorbic acid The invented process for producing a polyester supplies a crotonaldehyde with a purity of 95% by weight or more to a reaction system in the reaction of ketene with crotonaldehyde. In this process, unreacted crotonaldehyde may be recovered from a reaction ... | 07/08/2003 |
| 6545180 | Process for the preparation of sorbic acid The invented process for producing sorbic acid includes the step of decomposing a polyester at temperatures of 100° C. or less with hydrochloric acid, which polyester is obtained from ketene and crotonaldehyde. In the process, the reaction temperature af... | 04/08/2003 |
| 6525218 | Process for producing sorbic acid A process produces sorbic acid by hydrolyzing a polyester with an aqueous hydrochloric acid solution having a concentration of 15% by weight or less under the application of pressure or at a temperature of 100° C. or higher, which polyester is obtained b... | 02/25/2003 |
| 6512142 | Potassium sorbate granulate and production processes thereof A granulated product of potassium sorbate (i) has an overall pore volume of 0.3 ml/g or less, (ii) has an Na content of 450 ppm or less, or (iii) has an overall pore volume of 0.4 ml/g or less, or a granule hardness of 15% or less, and an Na content of 10... | 01/28/2003 |
| 6509498 | Process for the preparation of sorbic acid or salts thereof The invented process produces sorbic acid or its salt through the decomposition of a polyester obtained from ketene and aldehyde, and includes the step of treating a solution containing-sorbic acid or its salt with a chemically activated carbon, which sor... | 01/21/2003 |
| 6495718 | Method for suppressing sorbate- and/or sorbic acid-induced discoloration Compositions which comprise sorbic acid and/or one or more sorbates, and a flavonoid and/or flavonoid derivative, a method for the preparation thereof, and their use.... | 12/17/2002 |
| 6495717 | Process for producing sorbic acid or salts thereof A process produces sorbic acid or its salt and includes the step of retaining a slurry or solution containing sorbic acid or its salt while holding an oxygen concentration of a gaseous phase at 4% by volume or less, the gaseous phase being in contact with... | 12/17/2002 |
| 6489509 | Methods of storing aqueous potassium sorbate solution An aqueous potassium sorbate solution has a dissolved oxygen concentration of not more than 3.0 mg/l. The aqueous potassium sorbate solution can be obtained (i) by degassing an aqueous potassium sorbate solution to thereby control the dissolved oxygen con... | 12/03/2002 |
| 6462233 | Process for the preparation of sorbic acid The invented process produces sorbic acid. The process includes the steps of adding a crude sorbic acid to a hot water having a temperature exceeding 100° C., which crude sorbic acid is obtained by the decomposition of a polyester formed through a reacti... | 10/08/2002 |
| 6455733 | Apparatus and method for recovering sorbic acid Crude sorbic acid produced in a decomposition step 1 is subjected to a crystallization step 2 to precipitate crystalline sorbic acid, and the crystalline sorbic acid is separated from a mother liquor (filtrate). The mother liquor was subjected to an extra... | 09/24/2002 |
| 6437182 | Process for the preparation of sorbic acid The invented process produces sorbic acid by hydrolysis of a polyester in the presence of an acid, which polyester is obtained from ketene and crotonaldehyde. The process includes the step of subjecting a decomposition reaction mixture of the polyester to... | 08/20/2002 |
| 5354902 | Stabilized sorbic acid or salt thereof Stabilized aqueous solutions containing sorbic acid or salt thereof in an antimicrobial proportion, and further containing from 0.1, and preferably from 0.2, to about 5 ppm of manganous ion, said manganous ion being in an amount sufficient to inhibit oxid... | 10/11/1994 |
| 5200559 | Process for producing sorbic acid A process for producing sorbic acid from a polyester obtained by reaction of crotonaldehyde with ketene using an organic acid zinc salt as catalyst is provided, which process comprises dissolving the polyester in an aromatic hydrocarbon solvent having an ... | 04/06/1993 |
| 5191115 | Method for obtaining carboxylic acids by reaction of alkanes and formiates To produce a carboxylic acid R1 --COOH, in which R1 is a tertiary branched alkyl residue or a cycloalkyl residue with one or more rings, which may be attached, and possibly substituted by at least one alkyl residue, the alpha carbon ... | 03/02/1993 |
| 4929755 | Process for making an optically active mixture of an N-acyl-amino acid or ester containing at least two chiral centers In the process of hydrocarboxylating an -enamide with CO and H2 O or an organic hydroxyl compound to produce an N-acyl--amino acid or ester, respectively, the improvement comprising using as the -enamide reactant, an ³... | 05/29/1990 |
| 4822913 | Process for preparing carboxylic acids from esters of carboxylic acids Esters of carboxylic acids of the formula RCH2 COOR"' and R'CH:C(R")COOR"' are reacted to form a carboxylic acid and an aliphatic alcohol R"'OH wherein R, R', and R" are individually selected from the group consisting of --H, alkyl moieties of ... | 04/18/1989 |
| 4740617 | Sorbic acid process with crystallization Preparation of sorbic acid from precursors by contact with acid catalysts is improved by utilizing crystallization to separate sorbic acid during the preparation.... | 04/26/1988 |
| 4736063 | Sorbic acid process Butadiene and acetic acid are reacted with metal ion oxidant to prepare acetoxyhexenoic acids which are then converted to sorbic acid.... | 04/05/1988 |
| 4639294 | Process for production sorbic acid A process for producing sorbic acid is described, by first reacting crotonaldehyde with ketene to prepare a polyester, then decomposing the polyester with hydrochloric acid, separating the crude sorbic acid from the reaction solution, and purifying the se... | 01/27/1987 |
| 4506095 | Production of linear alkenoic acids and esters This invention provides a process for producing alkenoate products in the presence of an ethylaluminum dichloride type catalyst, such as the production of methyl 5-hexenoate by the reaction between propylene and methyl acrylate.... | 03/19/1985 |
| 4502993 | Process for the preparation of unsaturated aliphatic carboxylic acids The invention relates to a process for the preparation of unsaturated aliphatic carboxylic acids by thermal cracking of the polymeric intermediate product ("polyester") which is formed in the catalytic reaction of aldehydes or ketones with ketene. The rea... | 03/05/1985 |
| 4460787 | Metal and acid catalysis in sorbic acid preparation The acid conversion of certain precursors, e.g. γ-vinyl-γ-butyrolactone, to sorbic acid is improved by presence of copper or silver ions along with the acid.... | 07/17/1984 |
| 4380650 | Lactone process Acyloxyhexenoic acids are converted to γ-vinyl-γ-butyrolactone.... | 04/19/1983 |
| 4358605 | 15-Deoxy-16-hydroxy-16-vinyl and cyclopropyl substituted prostanoic acids and congeners This disclosure describes novel 15-deoxy-16-hydroxy-16- substituted prostanoic acids and congeners thereof having utility as bronchodilators as hypotensive agents, and as agents for the control of excessive gastric secretion, and particularly, alkyl ester... | 11/09/1982 |
| 4309357 | Process for preparing dienoic acids Dienoic acids are prepared by reaction of salts of 3-butenoic acid and vinyl halides, in the presence of catalysts which are phosphinic complexes of rhodium or nickel.... | 01/05/1982 |
| 4296243 | Process for producing sorbic acid or its derivatives A process for producing sorbic acid and its derivatives, which comprises reacting crotonaldehyde with ketene in the presence of a catalyst and decomposing or hydrolyzing the resulting adduct, said catalyst comprising a zinc salt of an aliphatic carboxylic... | 10/20/1981 |
| 4244776 | Fluidized bed treatment of granular potassium sorbate Granular potassium sorbate is continuously manufactured by spraying an aqueous potassium sorbate solution into or onto a bed of potassium sorbate particles fluidized by heated air.... | 01/13/1981 |
| 4158741 | Process for preparing sorbic acid Process for preparing sorbic acid which comprises contacting γ-vinyl-γ-butyrolactone with at least one catalyst selected from the group consisting of (A) solid acids, (B) transition metal oxides, (C) metals of Group VIII of the Periodic Table and (D) ha... | 06/19/1979 |
| 4132733 | Process for the manufacture of an addition compound of sorbic acid and potassium sorbate (potassium disorbate) Process for the manufacture of a molecular compound of sorbic acid -- potassium sorbate by means of crystallization from a solution of sorbic acid and potassium sorbate.... | 01/02/1979 |
| 4060535 | Process for the production of metal salts of organic acids Metal salts of organic acids are produced rapidly and efficiently by subjecting a reaction mixture that contains a metal oxide, hydroxide, or carbonate, an organic acid that has a melting point above 20° C., and a small amount of water to vigorous agitat... | 11/29/1977 |
| 4055617 | Process for preparing granular potassium sorbate A process for preparing granular potassium sorbate by adding water or a mixture of water and an organic solvent to powdery potassium sorbate, kneading the resulting mixture under specific conditions to give a uniformly wetted powder, supplying the wetted ... | 10/25/1977 |
| 4055618 | Process for preparing granular sorbic acid A process for preparing granular sorbic acid by adding water and/or a lower alkyl alcohol to powdery sorbic acid, kneading the resulting mixture under specific conditions to give a uniformly wetted powder, supplying the wetted powder to a screw type extru... | 10/25/1977 |
| 4022822 | Process for preparing sorbic acid Novel process for preparing sorbic acid comprising contacting γ-vinyl-γ-butyrolactone with an acid such as mineral acids, sulfonic acids or halogenated carboxylic acids or a cation-exchange resin at a temperature of 30° to 150° C. Sorbic acid is ... | 05/10/1977 |
| 3992442 | Process for the continuous production of sorbic acid A process for manufacturing sorbic acid in a continuous manner which comprises preparing a polyester from ketene and crotonaldehyde and then decomposing the polyester with hydrochloric acid in a multiple reactor system under such conditions that the degre... | 11/16/1976 |
