Bizarre Patents
Mountable Printable Placard With Headband
A resilient headband in a shape for being mounted on the head of the user. The headband is equipped with a longitudinal slotted member for holding a placard.
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| Number | Title | Issue Date |
| 8183406 | Process for recovering valued compounds from a stream derived from purification of methyl methacrylate The present invention provides a method for extractive recovery and conversion of selected compounds, such as methacrylic acid (MAA) and 2-methacrylamide (MAM), from a stream derived from purification of methyl methacrylate (MMA) or methacrylic acid (MAA) produced v... | 05/22/2012 |
| 8173832 | Process for producing 2-isopropenyl-5-methyl-4-hexene-1-yl-3-methyl-2-butenoate Provided is a method capable of solving the problems associated with production of LVSA, which is a pheromone produced by female pest mealybugs, and is useful as an agrochemical pest, at an industrial large scale, and producing LVSA in a high yield. Specifically, th... | 05/08/2012 |
| 7750179 | Method of purifying (meth) acrylates The invention relates to a process for purifying (meth)acrylates. ... | 07/06/2010 |
| 7491841 | Process for producing acrylic ester A process for producing an acrylic ester using acrylic acid and an aliphatic or alicyclic alcohol having from 5 to 8 carbon atoms, as raw materials, and using a strongly acidic cation exchange resin as a catalyst. In such a process for producing an acrylic ester, a ... | 02/17/2009 |
| 7332092 | Method of separating E and Z isomers of an alkene alcohol and derivatives thereof E and Z isomers of alkene alcohols and/or alkene alcohol derivatives are separated by substantially continuously contacting an ion exchange medium which is ion exchanged with silver and/or copper ions with the feed stream comprising the E and Z isomers of at least o... | 02/19/2008 |
| 7326323 | High capacity purification of thermally unstable compounds Separations processes and apparati capable of purifying thermally sensitive materials at high capacity. An apparatus having a rectification section and a stripping section with the stripping section having a stripping tray with 5 to 50% open area, a pressure drop fr... | 02/05/2008 |
| 7319167 | Method for distilling (meth)acrylic acid and/or the ester thereof A method for distilling (meth)acrylic acid and/or the ester thereof by withdrawing vapor generated in a distillation column by distillation from the top of the column, condensing the vapor to give a condensate, and circulating part of the condensate as reflux liquid... | 01/15/2008 |
| 7319162 | Method of decomposing by-product during the production of (meth)acrylic ester A method of decomposing a Michael addition reaction product formed as a by-product in the production step of a(meth)acrylic ester and recovering (meth)acrylic acid, a (meth)acrylic ester and an alcohol, in which the formation of an olefin as a by-product can be supp... | 01/15/2008 |
| 7304176 | Process for producing easily polymerizable substance It is an object of the present invention to provide a process for producing easily polymerizable substance, which can realize stable operation of a purification system, and can stably maintain a production amount by avoiding production stoppage, upon production of a... | 12/04/2007 |
| 7300555 | Method for the rectifying separation of liquids containing (meth)acrylic monomers in a rectification column A process for rectificatively separating liquids containing (meth)acrylic monomers in a rectification column is provided, in which a stream is withdrawn from the rectification column and recycled into the rectification column as a molecular oxygen-enriched liquid ph... | 11/27/2007 |
| 7294240 | Method for producing (meth)acrylic acid esters Basic (meth)acrylates IV are prepared by transesterification of alkyl (meth)acrylates I in the presence of a catalyst and working-up of the reaction mixture by distillation, by a process in which a gas or gas mixture which is inert under the reaction conditions is p... | 11/13/2007 |
| 7276139 | Method for concentrating solution An low concentration dope is fed through a nozzle into a concentrating apparatus, and flash evaporation of the low concentration dope is performed at an end of the nozzle. The low concentration dope is concentrated thereby to an concentrating dope which is contained... | 10/02/2007 |
| 7265241 | Method for purifying (meth)acrylic acid A method for purifying a crude (meth)acrylic acid obtained by a vapor phase catalytic oxidation method, characterized in that the crude (meth)acrylic acid having most parts of water and acetic acid removed therefrom, is fed to and distilled in a first distillation c... | 09/04/2007 |
| 7250481 | Method for the production of esters of polyalcohols Unsaturated acids are esterified with polyalcohols. The resulting reaction mixtures have utility. ... | 07/31/2007 |
| 7205429 | Method for disposal of waste from acrylic acid process and acrylic ester process This invention is providing a method for efficient treatment of the waste material from a process for production of acrylic acid and an acrylic ester. This is a method for the disposal of waste material, which at least one waste material selected from the group cons... | 04/17/2007 |
| 7186856 | Process for preparing carboxylic acids and derivatives thereof Processes for preparing carboxylic acids and derivatives thereof in which an ammonium salt of the carboxylic acid is heated in the presence of an organic reagent to split the salt and form the acid or, where the organic reagent is an esterifying agent, the correspon... | 03/06/2007 |
| 7166741 | Process for producing (meth) acrylic acid compound A process for producing a (meth)acrylic acid compound, which comprises distilling acrylic acid, methacrylic acid (these will hereinafter generally be referred to as “(meth)acrylic acid”) or an ester thereof (these will hereinafter generally be referred to as “... | 01/23/2007 |
| 7119224 | Preparation of (METH) acrylic acid and (METH) acrylic esters A process for preparing and/or working up mixtures by (meth)acrylic acid and/or (meth)acrylic ester in the presence of at least one polymerization inhibitor and at least one oxygenous gas, which comprises metering in at least part of the oxygenous gas at an exit rat... | 10/10/2006 |
| 7094921 | Method for storing (meth)acrylic acid or (meth)acrylic esters There is provided a method for storing (meth)acrylic acid or (meth)acrylic esters in a storage tank for receiving or discharging the (meth)acrylic acid or (meth)acrylic esters, which is capable of storing the (meth)acrylic acid or (meth)acrylic esters for a long per... | 08/22/2006 |
| 7078561 | Preparation of (meth)acrylic esters A process for inhibiting polymerization in the preparation of (meth)acrylic esters of C1–C8-alcohols, wherein the pH of the water of reaction supplied to the C1–C8-alcohol recovery is greater than 7. ... | 07/18/2006 |
| 7048834 | Method for purification of acrylic acid The present invention provides an industrially easy and economical method for purification of acrylic acid which enables to efficiently eliminate impurities from a crude acrylic acid containing aldehydes as the impurities while the formation of acrylic acid polymer ... | 05/23/2006 |
| 7014736 | Apparatus and process for purification of acrylic acid family An apparatus and a process for purification of an acrylic acid family. The apparatus is an apparatus for distillation purification of the acrylic acid family encompassing acrylic acid and its esters, and includes: a distillation column 10 to which a liquid co... | 03/21/2006 |
| 6998026 | Method for producing tertiary C-C-alkyl esters of (meth)acrylic acid A tert-C4–C8-alkyl (meth)acrylate is prepared by reacting (meth)acrylic acid with an olefin of the formula where R1 and R2, which may be i... | 02/14/2006 |
| 6989463 | Method for handling high-viscosity substances There is provided a method for handling high-viscosity substances discharged from a production process of acrylic acid or esters thereof by gas-phase catalytic oxidation, which method is improved such that upon transporting the high-viscosity substances in a molten ... | 01/24/2006 |
| 6891055 | Process for the production of bis(trimethylsilyloxy)silylalkylglycerol methacrylates The present invention relates to a process for producing substituted glycerol acrylates from substituted epoxides. More specifically, the present invention relates to a process comprising the steps of (a) reacting a first reaction mixture comprising substitut... | 05/10/2005 |
| 6891061 | Packed column and polymerizable compound treating method using the same Provided are a packed column arranged so as to be capable of effectively preventing polymerization of a polymerizable compound such as a (meth)acrylic acid in treating the compound, and a method for treating a polymerizable compound using the packed column. The pack... | 05/10/2005 |
| 6878239 | Process for inhibiting a polymerization in a vacuum section of an easily polymerizable compound purification system A process for inhibiting a polymerization of an easily polymerizable compound purification system is disclosed. According to the present invention, the polymerization of the easily polymerizable compound such as (meth)acrylic acid and (meth)acrylate flowed in... | 04/12/2005 |
| 6855762 | Method for producing water soluble polymer of esters from ethylenically unsaturated carboxylic acids and polyalkylene glycols A process for the preparation of water-soluble polymers of esters of ethylenically unsaturated carboxylic acids and polyalkylene glycols by azeotropic esterification, in the presence of organic solvents which form an azeotrope with water, of ethylenically unsaturate... | 02/15/2005 |
| 6849703 | Water-soluble polymers of esters made from acrylic acid and alkylpolyalkylene glycols Water-soluble polymers of esters made from acrylic acid and alkylpolyalkylene glycols, obtainable by azeotropic esterification of a mixture of acrylic acid and alkylpolyalkylene glycol in a molar ratio of from 2 to 3:1 in the presence of at least 85% by weight, base... | 02/01/2005 |
| 6838515 | Process for the preparation of esters of (meth)acrylic acid The invention relates to a process for the preparation of esters of (meth)acrylic acid by (trans)esterifying (meth)acrylic acid or its ester derivatives with monohydric or polyhydric alcohols in the presence of an acidic (trans)esterification catalyst, wherein said ... | 01/04/2005 |
| 6818792 | Preparation of polymerizable compounds Polymerizable compounds are prepared and/or worked up using at least one liquid ring pump by a process in which a working liquid which contains a material stream from the preparation and/or working-up of the polymerizable compound is used in a liquid ring pump. ... | 11/16/2004 |
| 6770219 | Composition and method for preventing fouling in (meth)acrylic acid processes An antifoulant composition comprising (meth)acrylic acid and one or more (meth)acrylate or (meth)acrylamide antifoulant polymers and a method of preventing fouling in (meth)acrylic acid processes comprising adding the (meth)acrylate or (meth)acrylamide antifoulant p... | 08/03/2004 |
| 6670501 | Process for the production of methyl methacrylate A process for the manufacture of methyl methacrylate includes a process for separating the methyl methacrylate from certain impurities, at least one of which has a freezing point of greater than -50° C., by a fractional crystallisation process.... | 12/30/2003 |
| 6660881 | Process for producing (meth)acrylic ester The present invention provides a process for producing a (meth)acrylic ester which enables to obtain a (meth)acrylic ester in an excellent reaction yield. The process for producing a (meth)acrylic ester uses an alcohol and an acid as raw materials and an ... | 12/09/2003 |
| 6646155 | Method for producing esters of , ଲ-unsaturated carboxylic acids An ester of an ,ଲ-unsaturated carboxylic acid is prepared by reacting the carboxylic acid with a C6 -C12 -alkanol, cyclopentanol or cyclohexanol in the presence of an acidic esterification catalyst and of an entraining a... | 11/11/2003 |
| 6610879 | Reaction method by using heterogeneous catalyst and reaction apparatus therefor When carrying out a liquid-phase reaction by using a heterogeneous catalyst, the separation of the heterogeneous catalyst and the reaction liquid is carried out certainly and effectively. A reaction method involves carrying out a reaction in liquid phase ... | 08/26/2003 |
| 6605738 | Processes for refining butyl acrylate Crude butyl acrylate streams, e.g., from the reaction of butanol and acrylic acid, are refined using a splitter distillation column to yield a butyl acrylate- and heavies-containing bottoms fraction and an overhead fraction containing dibutyl ether, butyl... | 08/12/2003 |
| 6603036 | Process for the manufacture of 2-ethylhexyl acrylate 2-Ethylhexyl acrylate is obtained by esterification of acrylic acid (AA) with 2-ethylhexanol (2-EtHexOH), in the presence of at least one stabilizer for AA, with H2 SO4 as catalyst, the crude reaction mixture (B1) obtained comprising... | 08/05/2003 |
| 6512138 | Preparation of (meth)acrylates The process for the esterification of (meth)acrylic acid with an alkanol in the presence of an esterification catalyst, in which unconverted starting compounds and the (meth)acrylate to be formed are separated off by distillation and an oxyester-containin... | 01/28/2003 |
| 6506930 | Process for preparing alkyl (meth)acrylates A process for preparing alkyl acrylates is disclosed. The process provides for the synthesis of alkyl (meth)acrylates, hydrolysis of process impurities into starting materials and separation of starting materials and reaction products in one reactor.... | 01/14/2003 |
