Did You Know...
...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.
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| Number | Title | Issue Date |
| 7910754 | Colorant compounds A compound of the formula wherein R1, R2, R3, R4, R5, R6, R′, R″, Y, CA+, and A− each, independently of the others are as defined... | 03/22/2011 |
| 7485737 | Colorant compounds A compound of the formula wherein R1, R2, R3, R4, R5, R6, R′, R″, Y, CA+, and A− each, independently of the others are as defined... | 02/03/2009 |
| 7453004 | Process for preparing aloe-emodin A process for preparing aloe-emodin from aloin by oxidizing aloin by treatment with an oxygen-containing gas in the presence of an acid. The aloe-emodin may be used for the production of rhein and diacerein by oxidizing aloe-emodin by treatment with a chromium-free ... | 11/18/2008 |
| 7371894 | Optimized liquid-phase oxidation Disclosed is an optimized process and apparatus for more efficiently and economically carrying out the liquid-phase oxidation of an oxidizable compound. Such liquid-phase oxidation is carried out in a bubble column reactor that provides for a highly efficient reacti... | 05/13/2008 |
| 7361784 | Optimized liquid-phase oxidation Disclosed is an optimized process and apparatus for more efficiently and economically carrying out the liquid-phase oxidation of an oxidizable compound. Such liquid-phase oxidation is carried out in a bubble column reactor that provides for a highly efficient reacti... | 04/22/2008 |
| 7358389 | Oxidation system employing internal structure for enhanced hydrodynamics Disclosed is an optimized process and apparatus for more efficiently and economically carrying out the liquid-phase oxidation of an oxidizable compound. Such liquid-phase oxidation is carried out in a bubble column reactor that provides for a highly efficient reacti... | 04/15/2008 |
| 7355068 | Oxidation system with internal secondary reactor Disclosed is an optimized process and apparatus for more efficiently and economically carrying out the liquid-phase oxidation of an oxidizable compound. Such liquid-phase oxidation is carried out in a bubble column reactor that provides for a highly efficient reacti... | 04/08/2008 |
| 7287745 | Liquid-continuous column distillation Bubble columns fractionate with vapor-liquid mass transfer efficiencies approaching that of distillation towers when vapor velocities in excess of 50% of jet flood are used. If the vapor velocities are pushed above about 70% of jet flood then the distillation perfor... | 10/30/2007 |
| 7279319 | Method and apparatus for injecting oxygen into fermentation processes A sparger for delivering fluid comprising a sparger pipe for carrying the fluid from a fluid source and downwardly directed nozzles to direct the delivery of fluid is disclosed. A substantially vertical connection pipe connects the sparger to the nozzles. Also, a me... | 10/09/2007 |
| 7238335 | Process for the preparation of hydrogen peroxide by the anthraquinone cyclic process The invention concerns a process for the preparation of hydrogen peroxide by the anthraquinone cyclic process. The process includes a regeneration stage in which working solution is regenerated by being brought into contact with an aqueous solution containing an alk... | 07/03/2007 |
| 7214713 | Antraquinone compositions as anticancer compositions and nutrition supplements and methods of making and using them A food supplement having prophylactic and-cancer effects, wherein the supplement comprises 20 to 99.99% by weight of a product of biosynthesis by the productive microorganism Penicillium oxalicum var. Armeniaca CCM 8242, obtained by fermentation of a nutrient broth ... | 05/08/2007 |
| 7160335 | Anthraquinone dyes The present invention relates to a compound of formula I wherein R1 and R3 are each independently of the other —NHR5, NHSO2R5, —NHCOR5, —OR | 01/09/2007 |
| 7132403 | Antihelminthic anthraquinones and method of use thereof Anthraquinones are described which are antihelminthic and in particular, are useful in compositions for inhibiting Schistosoma sp. in vitro or in vivo. The preferred anthraquinones have the formula: wherei... | 11/07/2006 |
| 7056346 | Direct dye composition for the hair, comprising a crosslinked polymer containing acrylic units and C10-C30 alkyl acrylate units The present invention relates to a composition comprising, in a cosmetically acceptable support suitable for dyeing the hair, at least one direct dye and at least one crosslinked polymer containing acrylic residue units of the structure | 06/06/2006 |
| 7048262 | Method and apparatus for injecting oxygen into fermentation processes A sparger for delivering fluid including a sparger pipe for carrying the fluid from a fluid source and downwardly directed nozzles to direct the delivery of fluid is disclosed. A substantially vertical connection pipe connects the sparger to the nozzles. Also, a met... | 05/23/2006 |
| 6914114 | Absorbing compounds for spin-on-glass anti-reflective coatings for photolithography An absorbing ether-like compound including a siliconethoxy, silicondiethoxy, or silicontriethoxy species attached to a naphthalene or anthracene chromophore via an oxygen linkage is used as an organic light-absorbing compound. The absorbing ether-like compound is in... | 07/05/2005 |
| 6903076 | Antihelminthic anthraquinones and method of use thereof Anthraquinones are described which are antihelminthic and in particular, are useful in compositions for inhibiting Schistosoma sp. in vitro or in vivo. The preferred anthraquinones have the formula: wherein R | 06/07/2005 |
| 6875746 | Anticancer anthraquinones and method of use thereof Anthraquinones are described which have anticancer or antitumor activity and which are useful for inhibiting cancer cells and cells comprising tumors in vitro or in vivo. Preferably, the anthraquinones have the chemical formula: ... | 04/05/2005 |
| 6861541 | Method for preparation of an anthraquinone colorant composition Disclosed herein is a method for producing a 1-[4-(biphenyl-4-carbonyl)]phenylaminonthraquinone colorant composition where the method comprises: reacting 4-halobenzoic acid with about 1 mole to about 4 moles of a halogenating agent per mole of said 4-halobenzoic aci... | 03/01/2005 |
| 6838443 | Antihelminthic anthraquinones and method of use thereof Anthraquinones are described which are antihelminthic and in particular, are useful in compositions for inhibiting Schistosoma sp. in vitro or in vivo. The preferred anthraquinones have the formula: wherein R | 01/04/2005 |
| 6835211 | Direct hair dyes and use thereof The invention relates to coloring and toning agents for keratinous fibers, in particular human hair, comprising at least one hydroxyanthraquinone derivative of formula (I), as a direct dye, in a cosmetically acceptable vehicle, where R=a group of formula (II), where... | 12/28/2004 |
| 6800615 | Antihelminthic anthraquinones and method of use thereof Anthraquinones are described which are antihelminthic and in particular, are useful in compositions for inhibiting Schistosoma sp. in vitro or in vivo. The preferred anthraquinones have the formula: wherein R1... | 10/05/2004 |
| 6673257 | Thermal cutoff construction compositions A thermal cutoff member and compositions used to manufacture such members are described herein as including at least two organic compounds which, when sufficiently combined, give rise to a component which has a lower melt transition temperature than the i... | 01/06/2004 |
| 6669994 | Water-soluble coating agents bearing initiator groups A method of forming a polymer layer on a support surface by the use of a coating agent and polymerizable compounds. The coating agent provides photoreactive groups adapted to attach the agent to the surface, as well as photoreactive groups adapted to rema... | 12/30/2003 |
| 6635350 | Polymeric 1,5- or 1,8-disubstituted anthraquinone-derivative colorants and articles comprising such colorants Red colorants comprising a chromophore having at least one poly(oxyalkylene) chain attached to the 1-position, as well as at least one poly(oxyalkylene) chain attached to either the 5-position or the 8-position of an anthraquinone backbone are provided. S... | 10/21/2003 |
| 6620858 | Colorants containing copolymerizable vinyl groups and sulfonamide linkages Disclosed are thermally-stable, colored, photopolymerizable compounds containing a vinyl group which are capable of being copolymerized with reactive vinyl monomers to produce colored compositions such as polyacrylates, polymethacrylates, polystyrene, etc... | 09/16/2003 |
| 6605362 | Absorbing compounds for spin-on-glass anti-reflective coatings for photolithography An absorbing ether-like compound including a siliconethoxy, silicondiethoxy, or silicontriethoxy species attached to a naphthalene or anthracene chromophore via an oxygen linkage is used as an organic light-absorbing compound. The absorbing ether-like com... | 08/12/2003 |
| 6596884 | Synthesis of hydrogen peroxide A method for synthesizing hydrogen peroxide comprises the steps of: synthesizing an analog of anthraquinone that is miscible or soluble in carbon dioxide; reacting the analog of anthraquinone with hydrogen in carbon dioxide to produce a corresponding anal... | 07/22/2003 |
| 6596036 | Method for the production of a dye preparation based on madder root The present invention relates to a method for the production of a dye preparation from madder root, comprising extraction of madder root in water at a temperature below 70-75° C., preferably below 65° C., while providing oxygen to the reaction mixture o... | 07/22/2003 |
| 6579994 | Process for preparation of 2-Methyl-1,4-naphthoquinone The present invention describes a process for the preparation of 2-Methyl-1,4-naphthoquinone by oxidizing 2-methylnaphthalene with hydrogen peroxide in the presence of acetic acid.... | 06/17/2003 |
| 6562121 | Conditioning of organic pigments Organic pigments are conditioned by introducing a liquid prepigment suspension into a miniaturized continuous reactor and thermally treating therein.... | 05/13/2003 |
| 6491847 | Discotic liquid crystal and organic electroluminescence device using same A novel class of discotic liquid crystals represented by the following formula was synthesized, and a layer thereof was incorporated in an organic electroluminescence device. ##STR1##... | 12/10/2002 |
| 6464954 | Method for hydrogenating an anthraquinone compound A process for hydrogenating an anthraquinone compound or a mixture of two or more thereof utilizes specific catalysts comprising, as active metal, a metal of transition group VIII of the Periodic Table of the Elements.... | 10/15/2002 |
| 6399795 | Method for producing 2-(4-methyl-3-pentenyl) anthraquinone A method for producing 2-(4-methyl-3-pentenyl)anthraquinone (IHEAQ) that includes a Diels-Alder addition of naphtho-1,4-quinone and myrcene and an oxidation of the resulting adduct. The oxidation step is carried out in the presence of a solvent mixture th... | 06/04/2002 |
| 6372785 | Synthesis of 1,8-dichloro-anthracene analogues and pharmaceutical compositions based thereon The invention provides novel anthracene compounds useful in the treatment of allergic, inflammatory, and tumor conditions and therapeutic compositions containing such compounds or their pharmaceutically acceptable salts. The compounds of the invention are... | 04/16/2002 |
| 6359113 | Protective group, compound protected by said group and device for grafting the protective group on the compound to protect it The protective group having the following formula (I): Ar--L-- (I) wherein Ar represents a substantially planar, fused ring system containing at least 4 aromatic rings, and L represents a group containing at least one carbon atom which is capable of bonding t... | 03/19/2002 |
| 6245922 | Chromophoric photocrosslinking compound A photoactive compound that is the reaction product of an alkenyl azlactone compound and a nucleophilic aromatic ketone is described. Mer units derived from this compound can be used, for example, to crosslink via a hydrogen abstracting mechanism acrylic ... | 06/12/2001 |
| 6103917 | Method for regenerating anthraquinone derivatives during a synthesis process of hydrogen peroxide 30 % The invention concerns a method for regenerating a working solution for producing hydrogen peroxide 30%, in which the working solution is contacted with alumina at a temperature of approximately 40-160° C.... | 08/15/2000 |
| 6051360 | Dyestuffs and resin compositions Dyestuffs represented by the below-described formula (1), that is, dyestuffs formed of a chromophoric nucleus and a bisphenol introduced therein have excellent solubility in solvents and binder resins, and can provide color filters having excellent transm... | 04/18/2000 |
| 5994567 | Direct oxygen injection into bubble column reactors The invention is directed to a liquid phase oxidation process, wherein a first oxygen-containing gas is injected into the lower portion of a bubble column reactor vessel containing an oxidizeable organic liquid. A second oxygen-containing gas is further i... | 11/30/1999 |
