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3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
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| Number | Title | Issue Date |
| 8173850 | Alkanediol composition, process for producing the same, and cosmetic A less malodorous alkanediol composition, a process for producing the alkanediol composition efficiently, and a cosmetic containing the alkanediol composition are provided. An alkanediol composition contains 0.005 parts by mass or less of ester compound per 100 part... | 05/08/2012 |
| 8053609 | Solid catalyst useful for converting an alkylene oxide to an alkylene glycol A solid (i.e., heterogeneous) catalyst useful for preparing an alkylene glycol from the corresponding alkylene oxide as well as a process for the catalytic hydration of an alkylene oxide to an alkylene glycol utilizing such a catalyst are provided. The catalyst of t... | 11/08/2011 |
| 8013192 | Process for preparing 1,3-propanediol The invention provides a process for preparing 1,3-alkanediols, such as 1,3-propanediol (PDO), from 3-hydroxyaldehydes, such as 3-hydroxypropanal (HPA), comprising providing a mixture of 3-hydroxyaldehydes in an organic solvent; extracting into an aqueous liquid a m... | 09/06/2011 |
| 7683221 | Process for the production of alkylene glycols using homogeneous catalysts A process for the manufacture of alkylene glycol by the hydration of alkylene oxide using a soluble catalyst that permits the separation of the reaction product into an alkylene glycol product stream and a recycle stream without the significant precipitation of the ... | 03/23/2010 |
| 7663005 | Process for preparing an alkylene glycol A catalytic process for preparing a monoalkylene glycol from a corresponding alkylene oxide utilizing an ion exchange resin and a reactor in which an upflow process is used is provided. In particular, the process includes reacting water and an alkylene oxide in at l... | 02/16/2010 |
| 7504545 | Process for the preparation of alkylene glycols A process for the conversion of an alkylene oxide to the corresponding alkylene glycol in the presence of carbon dioxide, water and a catalytic composition comprising a mixture of an organic base present in an amount in the range of from 10 to 90 mol % (based on the... | 03/17/2009 |
| 7491856 | Method of making alkylene glycols Methods and systems for preparing alkylene glycols are described herein. The methods and systems incorporate the novel use of a high shear device to promote dispersion and solubility of alkylene oxides with water. The high shear device may allow for lower reaction t... | 02/17/2009 |
| 7459589 | Process for the preparation of an alkylene glycol The invention provides for the utilization of microchannel apparatus in a process for the preparation of an alkylene glycol by the reaction of a corresponding alkylene oxide and water. ... | 12/02/2008 |
| 7453015 | Process for the preparation of alkylene glycols A process for the conversion of an alkylene oxide to the corresponding alkylene glycol in the presence of a catalytic composition, carbon dioxide and water, wherein the catalytic composition comprises a halide, a metalate and optionally a macrocyclic chelating compo... | 11/18/2008 |
| 7435858 | Process for the preparation of alkylene glycols A process for the production of alkylene glycol by hydrolysis of alkylene oxide with water is described wherein at least one reaction feed is first passed through a guard bed before entering a catalyst bed comprising hydrolysis catalyst. ... | 10/14/2008 |
| 7399891 | Process for alcohol production by selective ether decomposition This invention relates to a process for the production of an alcohol, the process comprising (a) reacting an olefin and water in the presence of a catalyst under conditions sufficient to form a crude alcohol stream comprising alcohol, and a dialkyl ether; (b) separa... | 07/15/2008 |
| 7342141 | Process for the preparation of alkanediol The invention provides a process for the preparation of alkanediol comprising the steps: (i) contacting alkylene oxide with carbon dioxide in the presence of a carbonation catalyst to obtain a reaction mixture containing alkylene c... | 03/11/2008 |
| 7335801 | Polyglycerols and production thereof A polyglycerol composition contains diglycerol, triglycerol, and tetraglycerol each in a content of 5 percent by weight or more, has a total content of diglycerol, triglycerol, and tetraglycerol of 75 percent by weight or more, has a total content of higher polyglyc... | 02/26/2008 |
| 7329785 | Process for the production of 1,3-propanediol by catalytic hydrogenation of 3-hydroxypropanal in the presence of a hydration co-catalyst A process for preparing 1,3-propanediol comprising the steps of: (a) preparing an aqueous mixture of 3-hydroxypropanal, (b) passing said aqueous 3-hydroxypropanal mixture to a hydrogenation zone wherein the hydrogenation zone is comprised of at least two stages wher... | 02/12/2008 |
| 7276634 | Reduction of the viscosity of reactive heavy byproducts during the production of 1,3-propanediol The present invention is an improvement upon the process for the production of 1,3-propanediol wherein an aqueous solution of 3-hydroxy propanal is formed, catalyst, if any, used in said formation is removed from the solution, sodium hydroxide is added to the soluti... | 10/02/2007 |
| 7259129 | Silver-containing catalysts, the manufacture of such silver-containing catalysts, and the use thereof A high activity and high selectivity silver catalyst comprising silver and, optionally, one or more promoters supported on a suitable support material having the form of a shaped agglomerate. The structure of the shaped agglomerate is that of a hollow cylinder havin... | 08/21/2007 |
| 7230145 | Catalyst for producing both end-hydroxyl group-terminated diols, process for producing the catalyst, process for producing the diols by using the catalyst, and both end-hydroxyl group-terminated diols obtained by the process A process for producing a both end-hydroxyl group-terminated diol, wherein an epoxy alcohol represented by the general formula (1) is subjected to a hydrogenolysis reaction in the presence of a catalyst for producing both end-hydroxyl group terminated diols, which c... | 06/12/2007 |
| 7196233 | Process for the preparation of alkylene glycols Disclosed is a process for the preparation of alkylene glycols from the corresponding alkylene oxide, such as ethylene glycol from ethylene oxide, in the presence of water, a catalyst and, optionally, carbon dioxide. The catalyst contains an amphoteric compound, suc... | 03/27/2007 |
| 7193105 | Histone deacetylase inhibitors based on trihalomethylcarbonyl compounds Histone deacetylase is a metallo-enzyme with zinc at the active site. Compounds having a zinc-binding moiety, for example, a trihalomethylcarbonyl group, such as a trifluoromethylcarbonyl group, can inhibit histone deacetylase. Histone deacetylase inhibition can rep... | 03/20/2007 |
| 7164048 | High-purity polyalkylene glycols and preparation thereof A process is described for purifying polyalkylene glycols obtained by adding alkylene oxide to alkylene glycol, in which, after addition is complete, the resultant polyalkylene glycol is treated at a pH of >7 with a bleaching agent selected from the group consisting... | 01/16/2007 |
| 7145045 | Process for the preparation of alkanediol The invention relates to a process for the preparation of alkanediol, which process involves (a) contacting alkylene oxide with carbon dioxide in the presence of catalyst to obtain a first liquid reaction mixture containing cyclic carbonate, (b) optionally removing ... | 12/05/2006 |
| 7115540 | Synthesis of aliphatic 1,3-diols utilizing reduced ligand concentration and water extraction This invention is a process for synthesizing aliphatic 1,3-diols in one step by hydroformylation and hydrogenation of oxirane, carbon monoxide, and hydrogen employing a catalyst comprising a cobalt carbonyl compound and a cocatalyst metal compound ligated with a lig... | 10/03/2006 |
| 7105710 | Process of preparing an alkylene glycol A process of preparing an alkylene glycol which process involves: i) reacting a respective alkylene oxide and water in a first reactor, ii) removing from the first reactor a reactor output mixture comprising an alkylene glycol and unreacted water, iii) transferring ... | 09/12/2006 |
| 7098367 | Process for the preparation of alkylene glycols Disclosed is a process for the preparation of alkylene glycols from the corresponding alkylene oxide, such as ethylene glycol from ethylene oxide, in the presence of water, a catalyst and, optionally, carbon dioxide. The catalyst contains amines which are weak bases... | 08/29/2006 |
| 7084310 | Method for the continuous production of propylene glycol Process for the continuous preparation of propylene glycols, which comprises the steps (i) to (ii): (i) reacting propylene with hydrogen peroxide to form propylene oxide and give propylene glycols as by-products, (... | 08/01/2006 |
| 7056439 | Process for producing 1, 3-propanediol Disclosed herein are processes for the recovery of 1,3-propanediol from an aqueous feed stream. The present invention involves contacting an aqueous feed stream that comprises water, 1,3-propanediol, and at least one contaminant with at least one solvent extractant ... | 06/06/2006 |
| 6972346 | Solid acid catalyzed reactive stripping of impurities formed during the production of 1, 3-propanediol A process for producing 1,3-propanediol comprising the steps of: a) forming an aqueous solution of 3-hydroxypropanal, b) hydrogenating the 3-hydroxypropanal to form a first crude 1,3-propanediol mixture comprising 1,3-propanediol, water, and MW 132 cyclic acetal, c)... | 12/06/2005 |
| 6916963 | Process using water tolerant Lewis acids in catalytic hydration of alkylene oxides to alkylene glycols Water tolerant Lewis acids are used in a process for the preparation of alkylene glycols by catalytic hydration of the corresponding alkylene oxide. The water tolerant Lewis acids can be a metal salt of a non-coordinating or weakly coordinating anion and a Group III... | 07/12/2005 |
| 6909022 | Process of removing organic halogen-containing compounds The present invention relates to a process of removing organic halogen-containing compounds from a liquid stream mainly containing one or more of the compounds selected from the group consisting of glycol, water and alcohol, which process involves contacting the str... | 06/21/2005 |
| 6903044 | One-step production of 1,3-propanediol from ethylene oxide and syngas with a catalyst with a N-heterocyclic ligand Disclosed is a new catalyst composition comprising a bimetallic Co—Ru catalyst complexed with a N-heterocylcic ligand that is effective, economical, and provides improvements in oxidative stability in the one step synthesis of 1,3-propanediol (1,3-PDO) from ethyle... | 06/07/2005 |
| 6897343 | Process for the preparation of propanediol The invention relates to a process for the preparation of 1,2-propanediol from propylene oxide, which process involves contacting propylene oxide with carbon dioxide in the presence of a homogeneous phosphorus containing catalyst to obtain propylene carbonate, optio... | 05/24/2005 |
| 6858761 | Process for preserving resin catalyst for addition reaction of alkylene oxide and utilization of this process The present invention provides a process and its utilization in a process comprising the step of carrying out an addition reaction of an alkylene oxide to an addition-receiving substance in the presence of a resin catalyst, thereby producing the addition reaction pr... | 02/22/2005 |
| 6780810 | MULTIFUNCTIONAL CATALYST USEFUL IN THE SYNTHESIS OF CHIRAL VICINAL DIOLS AND PROCESS FOR THE PREPARATION THEREOF, AND PROCESS FOR THE PREPARATION OF CHIRAL VICINAL DIOLS USING SAID MULTIFUNCTIONAL CATALYSTS The present invention relates to a multifunctional reusable catalyst and to a process for the preparation thereof on a single matrix of the support to perform multicomponent reaction in a single pot. The multifunctional catalysts of the invention are useful for the ... | 08/24/2004 |
| 6750373 | One-step production of 1, 3-propanediol from ethylene oxide and syngas with a cobalt-iron catalyst Disclosed is a new catalyst composition comprising a bimetallic Co—Fe catalyst, optionally complexed with a ligand selected from a N-heterocycle, phosphine, or porphorine ligand, that provides a lower cost alternative for the one step synthesis of 1,3-propanediol ... | 06/15/2004 |
| 6660892 | Synthesis of aliphatic 1,3-diols utilizing reduced ligand concentration and water extraction This invention is a process for synthesizing aliphatic 1,3-diols in one step by hydroformylation and hydrogenation of oxirane, carbon monoxide, and hydrogen employing a catalyst comprising a cobalt carbonyl compound and a cocatalyst metal compound ligated... | 12/09/2003 |
| 6646083 | Crosslinked polymers containing tertiary amine and/or quaternary ammonium salt structures, processes for making and uses thereof Crosslinked polymers excellent in ion exchange capacity and catalytic activity and in resistance to thermal decomposition and widely applicable in various fields of use; a crosslinking agent which is suited for use as a raw material in the production of c... | 11/11/2003 |
| 6608235 | Method of reducing epoxidized organic compound with hydrogen In reduction of an epoxy group-containing organic compound, for example, a C5 -C20 saturated or unsaturated epoxy cycloaliphatic compound, in the presence of a nickel catalyst, by bringing the compound into contact with hydrogen, the... | 08/19/2003 |
| 6586643 | One-step production of 1,3-propanediol from ethylene oxide and syngas with a catalyst with a N-heterocyclic ligand Disclosed is a new catalyst composition comprising a bimetallic Co--Ru catalyst complexed with a N-heterocylcic ligand that is effective, economical, and provides improvements in oxidative stability in the one step synthesis of 1,3-propanediol (1,3-PDO) f... | 07/01/2003 |
| 6580008 | Catalytic process for producing an alkylene glycol with reactor-output recycle A process for the production of an alkylene glycol comprising: a feed mixture containing a respective alkylene oxide and water is introduced to at least one inlet of a reactor containing a fixed bed of a solid catalyst based on an anion exchange resin, and a r... | 06/17/2003 |
| 6576802 | One-step production of 1, 3-propanediol from ethylene oxide and syngas with a catalyst with a phospholanoalkane ligand Disclosed is a novel class of modified ruthenium catalysts useful in the one step synthesis of 1,3-PDO comprising (a) a cobalt component comprising one or more non-ligated cobalt compounds; and (b) a ruthenium component comprising in major part a rutheniu... | 06/10/2003 |
