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 |
| 7285613 | Free-radical curable polyesters and methods for use thereof The invention is based on the discovery that certain polyester compounds bearing free-radical curable moieties are useful as b-stageable adhesives for the microelectonic packaging industry. ... | 10/23/2007 |
| 7247756 | 1,4-disubstituted benzenes as insecticides Compounds of formula I: wherein A, B, D, and R are as defined herein and their agriculturally acceptable salts are disclosed as effective insecticides. In addition, compositions comprising an insecticidally effec... | 07/24/2007 |
| 7214835 | 1,7,8-Trifluoronaphthalene-2-naphthol, and method for producing liquid crystal compound using same The present invention provides 1,7,8-trifluoro-2-naphthol and a derivative thereof as intermediates for efficiently producing a trifluoronaphthalene liquid crystal material. A method for efficiently producing a trifluoronaphthalene liquid crystal material using such... | 05/08/2007 |
| 7182885 | Fluorinated indenes and 1,7-dihydroindacenes of negative dielectric anisotropy Fluorinated indenes and 1,7-dihydroindacenes of the general formulae (I) and (II) of negative dielectric anisotropy (Δε | 02/27/2007 |
| 7115784 | Copper-catalyzed formation of carbon-heteroatom and carbon-carbon bonds The present invention relates to copper-catalyzed carbon-heteroatom and carbon-carbon bond-forming methods. In certain embodiments, the present invention relates to copper-catalyzed methods of forming a carbon-nitrogen bond between the nitrogen atom of an amide or a... | 10/03/2006 |
| 6864396 | Substituted pentacene semiconductors Substituted pentacene compounds comprise at least one substituent selected from the group consisting of electron-donating substituents, halogen substituents, and combinations thereof; the substituent(s) each being bonded to a carbon atom of a terminal ring of pentac... | 03/08/2005 |
| 6770463 | Process for the preparation of chiral isofluoroenes There is provided a process for the preparation of a chiral insecticidal and acaricidal compound of formula I. Also provided are intermediate compounds useful in the process of the present invention. ... | 08/03/2004 |
| 6768025 | Benzoylcyclohexanedione derivatives and their use as herbicides Benzoylcyclohexanedione derivatives of the formula (I) and their use as herbicides are described. In this formula (I), R1, R3, and R4 are various radicals, L—(R2)n | 07/27/2004 |
| 6686371 | Non-steroidal, tetracylic compounds for estrogen-related treatments The invention provides non-steroidal estrogenic compounds with estrogenic and anti-estrogenic compounds effects for treatment of estrogen-deficiency related disorders, which compounds are having formula (I) wherein, one of Ra or Rb i... | 02/03/2004 |
| 6534135 | Process of preparing discotic liquid crystalline compounds The invention relates to a process of preparing a discotic liquid crystalline compound by intramolecular oxidative cyclisation of a diaryl compound in an organic solvent in the presence of a strong acid, characterized in that an oxidative agent comprising... | 03/18/2003 |
| 6444860 | Naphthopyrans and phenanthropyrans annelated in C5-C6 with a bicyclic group, and compositions and (co) polymer matrices containing them The invention relates to novel naphthopyran- and phenanthropyran-type compounds having a carbobicycle annelated in 5,6- position. These compounds have formula (I) given below: ##STR1## These compounds (I) have interesting photochromic properties. The inve... | 09/03/2002 |
| 6379590 | Method for making unsymmetrically substituted fluorenyl compounds for nonlinear optical applications A new method for producing unsymmetrically substituted fluorenyl compounds, one step of which is the preparation of 2,7-disubstituted fluoren-9-one derivatives via the nucleophilic substitution of a compound of the formula D ##STR1## wherein A' is se... | 04/30/2002 |
| 6342642 | 1,4-diaryl-2-fluoro-1-buten-3-ol compounds and their use in the preparation of 1,4-diaryl-2-fluoro-1,3-butadiene and 1,4-diaryl-2-fluoro-2-butene compounds The present invention provides novel 1,4-diaryl-2-fluoro-1-buten-3-ol compounds of the structural formula I ##STR1## a method for the preparation of those formula I compounds, and the use of those formula I compounds in the preparation of 1,4-diaryl-... | 01/29/2002 |
| 6333437 | Method for purifying a bromine compound A method for purifying a bromine compound by depositing the bromine compound represented by the following general formula (1) as solid particles from a crude solution containing the bromine compound: ##STR1## wherein (i) the crude solution is supplied int... | 12/25/2001 |
| 6333080 | Liquid-crystal alkenyltolan derivative, liquid-crystal composition, and liquid-crystal display element A liquid crystalline alkenyltolan derivative expressed by the general formula Ct H2t-1 --G--(CH2)m --A1 --B1 --(A2 --B2)n --(A3 --B3)p... | 12/25/2001 |
| 6309561 | Liquid crystal compounds having a chiral fluorinated terminal portion Fluorine-containing, chiral liquid crystal compounds comprise (a) a chiral fluorochemical terminal portion comprising (i) at least one chiral center, which can optionally be heteroatom-substituted; (ii) a terminal fluoroalkyl, fluoroether, perfluoroalkyl,... | 10/30/2001 |
| 6215008 | Fluorescent dyes Fluorescent dyes which fluoresce a variety of colors are prepared from substituted isoviolanthrone and substituted isoviolanthrone by reductive alkylation with alkyl halides in the presence of zinc.... | 04/10/2001 |
| 6177154 | Alkoxybenzene derivative, liquid-crystal composition, and liquid-crystal display element Disclosed are (a) liquid crystalline compounds which are essential as component of the liquid crystal compositions, are excellent in miscibility with other liquid crystal compositions, particularly in the miscibility at low temperatures, and expressed by ... | 01/23/2001 |
| 6168838 | Fluorinated phenantrene derivatives for liquid crystal mixtures Fluorinated phenanthrene derivatives and their use in liquid-crystalline mixtures Fluorinated phenanthrene derivatives of the formula (I) ##STR1## in which G is --CHF--CH2 -- or --CF.dbd.CH--, E1, E2, E3, E4 | 01/02/2001 |
| 6166272 | Molybdenum trioxide catalyzed fluorination reactions Disclosed is a method of fluorinating a substrate having the general formula ##STR1## where each R is independently selected from halogen, alkyl from C1 to C12, aryl from C6 to C12, alkoxide from C1 | 12/26/2000 |
| 6121495 | Ethynyl substituted aromatic compounds, synthesis, polymers and uses thereof Compounds of ethynyl aromatic compounds form polymers which have high thermal stability. The monomers are useful for coating a wide variety of substances such as dielectric coatings where high thermal resistance is desirable including electronic component... | 09/19/2000 |
| 6121500 | Production of 6-bromo-2-naphthol and derivatives A mixture of water and a glycol, such as ethylene glycol, is employed as the solvent for the reaction between 1,6-dibromo-2-naphthol and an alkali metal sulfite in the preparation of 6-bromo-2-naphthol and its derivatives to effect a substantial reduction... | 09/19/2000 |
| 6025310 | Organic compounds suited to lubricating films on magnetic recording media The invention provides novel organic compounds, and more particularly those having excellent lubricity, compatible with lubricating organic compounds having a benzene ring and a phosphazine ring and retaining stability free of hydrolysis for a prolonged p... | 02/15/2000 |
| 5998673 | 1, 4-diaryl-2-fluoro-2-butene insecticidal and acaricidal agents Pesticidal 1,4-diaryl-2-fluoro-2-butene compounds having the structural formula I ##STR1## and compositions and methods comprising those compounds for the control of insect and acarid pests.... | 12/07/1999 |
| 5998674 | Bromine compound production method Method of producing a bromine compound having an aliphatic unsaturated bond which includes reacting a compound having an aliphatic unsaturated bond represented by the following general formula (1) with bromine: R1 --O--Ar1 --Y--Ar2 | 12/07/1999 |
| 5972241 | Liquid crystal compounds having a chiral fluorinated terminal portion Fluorine-containing, chiral liquid crystal compounds comprise (a) a chiral fluorochemical terminal portion containing at least one methylene group and optionally containing at least one catenary ether oxygen atom; (b) a saturated, chiral or achiral, hydro... | 10/26/1999 |
| 5952386 | Dihalopropene compounds, insecticides containing them as active ingredients, and intermediates for their production The present invention provides dihalopropene compounds of the general formula: ##STR1## wherein R1 is C1 -C10 alkyl or the like; L is C(.dbd.O)NH or the like; R2, R3 and R4 are indepen... | 09/14/1999 |
| 5948933 | Tropane analogs and methods for inhibition of monoamine transport New tropane analogs that bind to monoamine transporters are described, particularly, 8-aza, 8carbo and 8-oxo tropanes having 6- or 7-substituents. The compounds of the present invention can be racemic, pure R-enantiomers, or pure S-enantiomers. Certain pr... | 09/07/1999 |
| 5907069 | Production of nabumetone or precursors thereof In producing nabumetone or precursor thereof, use is made of 2-bromo-6-methoxynaphthalene formed by (a) methylating 6-bromo-2-naphthol with methyl bromide or methyl chloride, in a halogen-free liquid solvent comprising at least about 40% by weight of one ... | 05/25/1999 |
| 5849958 | 1,4,diaryl-2-fluoro-2-butene insecticidal and acaricidal agents Pesticidal 1,4-diaryl-2-fluoro-2-butene compounds having the structural formula I ##STR1## and compositions and methods comprising those compounds for the control of insect and acarid pests.... | 12/15/1998 |
| 5844056 | Star polymers having multiple polyisobutylene arms emanating from a calixarene core, initiators therefor, and method for the synthesis thereof The synthesis and characterization of novel linear polymers and multi-arm star polymers comprising polyisobutylene arms connected to a well-defined calixarene core are described. The polymers are directly telechelic. They synthesis has been achieved using... | 12/01/1998 |
| 5840996 | Production of brominated methoxynaphthalene compounds Bromine is generated in situ in a mixture formed by mixing together 2-methoxynaphthalene, hydrogen bromide, at least one peroxidic compound and a chemically indifferent organic liquid solvent or diluent under conditions effective to produce 1,6-dibromo-2-... | 11/24/1998 |
| 5770108 | Pyrimidine compound and liquid crystal composition and liquid crystal element using the same A novel pyrimidine compound represented by the following Formulas (1) and (2), a liquid crystal composition containing said compound and a liquid crystal element having excellent characteristics such as high speed response, orientation and high contrast r... | 06/23/1998 |
| 5763700 | Pesticidal fluoroolefins A pesticidal compound, suitable for combating soil borne insect pests has formula I: ##STR1## in which formula: ArA represents a phenyl or naphthyl group optionally substituted by one or more groups selected from halogen, alkoxy, halo... | 06/09/1998 |
| 5756851 | Production of nabumetone or precursors thereof In producing nabumetone or precursor thereof, use is made of 2-bromo-6-methoxynaphthalene formed by (a) methylating 6-bromo-2-naphthol with methyl bromide or methyl chloride, in a halogen-free liquid solvent comprising at least about 40% by weight of one ... | 05/26/1998 |
| 5702637 | Liquid crystal compounds having a chiral fluorinated terminal portion Fluorine-containing, chiral liquid crystal compounds comprise (a) a chiral fluorochemical terminal portion containing at least one methylene group and optionally containing at least one catenary ether oxygen atom; (b) a saturated, chiral or achiral, hydro... | 12/30/1997 |
| 5643495 | 1,2,2,2-tetrafluoroethyl ethers, and liquid-crystalline medium 1,2,2,2-Tetrafluoroethyl ethers of the formula I R--(A1 --Z1)m --A2 --Z2 A3 --O--CHF--CF3(I) are suitable as components of liquid-crystalline media wherein R is H, a substituted or unsubst... | 07/01/1997 |
| 5563298 | Stilbene-based materials, their preparation and use Materials of the formula I: ##STR1## in which R1, R2 and R3 in each case independently of one another can be identical or different and are a hydrogen atom, halogen atom, hydroxyl group, nitro group, cyano group or mo... | 10/08/1996 |
| 5554316 | Hexenediyne derivative and a liquid crystal composition A novel compound having superior characteristics as a liquid crystal material and having a good stability under usual use environment, and a composition having improved viscosity, optical anisotropy and other properties, and further a liquid crystal displ... | 09/10/1996 |
| 5492917 | Endothelin antagonists incorporating a cyclobutane Novel compounds of the general structural formula I: ##STR1## have endothelin antagonist activity and are therefore useful in treating cardiovascular disorders, such as hypertension, pulmonary hypertension, postischemic renal failure, vasospasm, cere... | 02/20/1996 |
