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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 |
| 7919648 | Lateral α-substituted acrylate compound and polymer thereof The invention relates to compounds represented by Formula (1): wherein Ra is alkyl or the like; Rb is fluorine or —CF3; A is 1,4-cyclohexylene, 1,4-phenylene or the like; Z is a single bon... | 04/05/2011 |
| 7790915 | Naphthalene compound with terminal hydrogen, liquid crystal composition including the compound, and LCD device including the liquid crystal composition A liquid crystal (LC) compound having generally required physical properties, low viscosity, proper optical anisotropy, proper dielectric anisotropy and good compatibility with other LC compounds is described. An LC composition including the compound and an LCD devi... | 09/07/2010 |
| 7407691 | Photopolymerizable oxetane derivative and liquid-crystal composition containing it Provided are a liquid-crystal compound and a liquid-crystal composition containing the compound, of which the advantages are that they show nematic hybrid orientation on a rubbed TAC substrate, they are polymerizable in open air and they readily give a polymer havin... | 08/05/2008 |
| 7312366 | Preparation of one intermediate for pyrethroids Methods for preparing 2,3,5,6-tetrafluorodimethylolbenzene, an intermediate for the preparation of pyrethroids, are disclosed. A method for preparing 2,3,5,6-tetrafluorodimethylolbenzene includes the reduction of tetrafluoroterephthalate. Various reduction processes... | 12/25/2007 |
| 7262325 | Method of preparing salicylamides The present invention provides a fast, high yield method for preparing salicylamide intermediates. The method comprises reacting a C4 or higher alkyl ester of salicylic acid or derivative thereof with at least one amine selected from the group consisting ... | 08/28/2007 |
| 7108896 | Method of increasing helical twisting power, optically active compound, liquid crystal compostion containing the same, and liquid crystal display device A method of increasing helical twisting power (HTP) in an optically active compound used in a liquid crystal material is provided. An optically active compound which exhibits a large HTP value is also provided. Furthermore, a liquid crystal composition which exhibit... | 09/19/2006 |
| 7083832 | Partially fluorinated liquid crystal material The invention provides LC compositions that exhibit V-shaped switching when aligned in an analog device configuration and exhibit bistability when aligned in a bookshelf-type device configuration. The invention more specifically provides LC compositions of formula 1... | 08/01/2006 |
| 7074462 | Ester compounds and their use in liquid crystalline media The invention relates to compounds of the formula I and to a liquid-crystalline medium based on a mixture of polar compounds of positive dielectric anisotropy, characterized in that it comprises one or more compounds of the general formula I ... | 07/11/2006 |
| 7070838 | Liquid crystalline compound, liquid crystal composition and their polymers The present invention provides a compound represented by formula (1) defined in the specification and a liquid crystal composition comprising the compound. The invention further provides a polymer obtained by polymerization of compound or composition above, and furt... | 07/04/2006 |
| 7005535 | Ferroelectric liquid crystal material derived from lactic acid The present invention relates a chiral compound, comprising a general formula as formula (I): wherein A, B independently are, X, Y indep... | 02/28/2006 |
| 6936739 | Fluorine-containing bisphenols, their preparation, their precursors and intermediates, and use of the fluorine-containing bisphenols This invention relates to 1,2-di(4-hydroxyaryl)tetrafluoroethanes of the general formula (I) wherein R are each, independently of one another, hydrogen, F, Cl, Br, I, CN, COOR2, C1-C | 08/30/2005 |
| 6913629 | Building blocks containing isocyanate groups and their use for functionalizing or modifying compounds or surfaces Compounds of the formula 1 OCN—R1—NHCOX—R2—(Y)n (1), where X is a covalent bond to R2 or is O, S or NR3, Y is a hydrogen atom or a free functional group and n is an integer from ... | 07/05/2005 |
| 6908645 | Liquid-crystalline medium The invention relates to liquid-crystalline compounds of the formula I and to a liquid-crystalline medium based on a mixture of polar compounds, characterized in that it comprises one or more compounds of the general formula I | 06/21/2005 |
| 6828466 | Process for the synthesis of phenols from arenes A process to synthesize substituted phenols such as those of the general formula RR′R″Ar(OH) wherein R, R′, and R″ are each independently hydrogen or any group which does not interfere in the process for synthesizing the substituted phenol including, but not... | 12/07/2004 |
| 6759101 | Liquid crystalline materials containing perfluoroalkyl and alkenyl tail groups Compounds that are useful as components in liquid crystal compositions, particularly in ferroelectric liquid crystal compositions. Compounds of the invention are rod-like molecules with a mesogenic (generally linear) core to which an alkene tail and an alkyl or alko... | 07/06/2004 |
| 6730371 | Optically active compound and liquid crystal composition containing the compound An optically active compound of the following general formula (1) useful as a chiral dopant, and use thereof, wherein each of X and Y is independently a hydrogen atom or a fluorine atom, R is (C2H5)... | 05/04/2004 |
| 6706338 | Liquid-crystalline compounds The invention relates to liquid-crystalline compounds of the formula I, and to liquid-crystalline media comprising at least one compound of the formula I and to electro-optical displays containing such a liquid-crystalli... | 03/16/2004 |
| 6685995 | Ester compounds, liquid crystal compositions and liquid crystal display devices Liquid crystalline compounds suitable for driving at a low voltage and at a wide temperature range, and suitable for high speed response, liquid crystal compositions comprising the compound, and liquid crystal display devices comprising the liquid crystal... | 02/03/2004 |
| 6677475 | Optically active compound and liquid crystal composition containing the compound Optically active compounds of the following general formula (1) useful as chiral dopant, ##STR1## wherein n is an integer of 0 to 5, provided that when n is 0, A is a single bond (--) and that when n is 1 to 5, A is a single bond (--), --O--, --C... | 01/13/2004 |
| 6639093 | Process for the preparation of hydroxybenzoic benzyl esters The invention relates to the preparation of hydroxybenzoic benzyl esters by reacting benzyl chloride with hydroxybenzoic acids in the presence of one or more amides.... | 10/28/2003 |
| 6565769 | Electrooptical liquid crystal system To improve switching times, especially at low temperatures, one or more reactive liquid crystalline compounds is added to a liquid crystal mixture used in an electrooptical system. The electrooptical system comprises a PDLC film comprising a liquid crystal mix... | 05/20/2003 |
| 6551666 | Cyclohexane derivatives and liquid-crystalline medium The invention relates to cyclohexane derivatives of the formula I ##STR1## in which n, m, p, R1, X1, X2, Z1, Z2, Z3, A1 A2 and Y are as defined above.... | 04/22/2003 |
| 6544604 | Liquid crystalline compound having difluoropropyleneoxy group as bonding group, liquid crystal composition and liquid crystal display element The present invention provides a liquid crystalline compound having a difluoropropyleneoxy group as a bonding group, which is represented by Formula (1): ##STR1## wherein R1 and R2 each independently represent hydrogen, halogen, ... | 04/08/2003 |
| 6538138 | Process and a novel intermediate for the preparation of Flecainide The invention relates to processes for the preparation of compounds of the formula ##STR1## wherein R is a 2-piperidyl or 2-pyridyl radical, and pharmaceutically acceptable salts thereof, the process comprising the steps of: a) reacting 2,5-bis(2,2,2-trif... | 03/25/2003 |
| 6514578 | Polymerizable mesogenic tolanes Polymerizable tolanes of formula I ##STR1## wherein P, Sp, X, n, A1, A2, Z1, Z2, m1, m2, L1, L2, r and R have the meanings defined herein, polymerizable liquid crystal compositions comprisi... | 02/04/2003 |
| 6511719 | Chiral compounds The invention relates to chiral compounds of formula I ##STR1## wherein R1, R2, MG1, MG2, Sp, X, Y, a, b, c and d have the meaning given in claim 1, to a liquid crystalline mixture comprising at least one chiral... | 01/28/2003 |
| 6468606 | Phenylbenzoate derivatives and liquid crystal compositions A liquid crystal composition which comprises at least one phenylbenzoate derivative represented by formula (1) ##STR1## wherein R1 is a hydrogen atom or an alkyl group of 1-10 carbons and others; X is a hydrogen atom or a halogen atom; A and B ... | 10/22/2002 |
| 6465687 | Thyroid receptor ligands and method Novel thyroid receptor ligands are provided which have the general formula (I) ##STR1## where R1 is alkyl of 1 to 4 carbons or cycloalkyl of 3 to 7 carbons; R2 and R3 are the same or different and are hydrogen, halogen, ... | 10/15/2002 |
| 6436312 | Liquid crystal composition and liquid crystal shutter A liquid crystal composition comprises a host material capable of exhibiting a smectic C phase, and a chiral dopant material which imparts or enhances chirality in the host material. The composition exhibits ͌-Vmin curves. The chiral dopant ma... | 08/20/2002 |
| 6417407 | Method of making 2-bromo-4-chloro substituted phenols A 2-bromo-4-chloro substituted phenol is prepared from a first composition of a substituted phenol and benzotrifluoride in a weight ratio to the substituted phenol of about 2 to about 4. Into the first composition is sparged about 1 to about 1.5 equivalen... | 07/09/2002 |
| 6369188 | Polyfunctional urethane- or urea-containing oligomers and polymers prepared therefrom Polyfunctional polymerizable urethane- or urea-containing oligomers allow the design, adjustment, and regulation of chemical and physical properties of the described oligomers. The invention discloses the formulas and compositions of these oligomers, meth... | 04/09/2002 |
| 6326066 | 1,4-disubstituted 2,6-difluorobenzene compounds, and a liquid-crystalline medium 1,4-disubstituted 2,6-difluorobenzene compound of formula I ##STR1## wherein R is an alkyl or alkenyl radical, A.sup.1 and A.sup.2 are independently (a) a trans-1,4-cyclohexylene radical in which a CH.sub.2 group may be replaced by -O- and/or -S, (b) a 1,4-phe... | 12/04/2001 |
| 6319570 | Liquid crystalline compound, liquid crystal composition comprising the liquid crystal-line compound, and liquid crystal display device using the liquid crystal composition The invention is to provide liquid crystalline compounds which have a low viscosity, high negative dielectric anisotropy, high resistivity, and high voltage holding ratio, and are stable against heat and ultraviolet light; to provide liquid crystal compos... | 11/20/2001 |
| 6262293 | ω-Cycloalkly-prostaglandin e2 derivatives ω-Cycloalkyl-prostaglandin E2 derivatives of formula (I) ##STR1## (wherein all symbols are as defined in the description); and non-toxic salts thereof, prodrugs thereof and cyclodextrin clathrates thereof. Compounds of formula (I) strongly bind on ... | 07/17/2001 |
| 6258296 | Fluorine-substituted compounds and ferrielectric liquid-crystal composition containing the same A fluorine-substituted compound of the following general formula (1) or (2), and a ferrielectric liquid crystal composition comprising the above compound and a specific ferrielectric liquid crystal compound, ##STR1## wherein, in the formula (1), each of X... | 07/10/2001 |
| 6242636 | Liquid crystal compounds, mixtures and devices An electoclinic device having two spaced cell walls each bearing electrode structures and treated on at least one facing surface with an alignment layer, a layer of a smectic liquid crystal material enclosed between the cell walls, where the liquid crysta... | 06/05/2001 |
| 6201020 | Ortho-diphenol compounds, methods and pharmaceutical compositions for inhibiting parp This invention relates to compounds, pharmaceutical compositions, and methods of using compounds of the formula: ##STR1## A is O or S; R is C1 -C10 straight or branched chain alkyl, C2 -C10 straight or branched ... | 03/13/2001 |
| 6197216 | Ferrielectric liquid crystal compound A novel ferrielectric liquid crystal compound of the formula (1), ##STR1## wherein R is a linear alkyl group having 6 to 12 carbon atoms, X is a hydrogen atom or a fluorine atom, m is an integer of 1 to 3, n is an integer of 1 to 3, and C* is an asymmetri... | 03/06/2001 |
| 6187950 | Substituted diaryl or diheteroaryl methanes, ethers and amines having retinoid agonist, antagonist or inverse agonist type biological Compounds of the formula Y3 (R4)--X--Y1 (R1 R2)--Z--Y2 (R2)--A--B where the symbols have the meaning defined in the specification, have retinoid, retinoid antagonist or retinoid inverse ag... | 02/13/2001 |
| 6183822 | Polymerizable mesogenic fluorophenylenes The invention relates to polymerizable fluorophenylenes of formula I ##STR1## wherein P, Sp, X, n, L, Z1, Z2, A, B, m and R have the meaning of claim 1, to a polymerizable liquid crystalline composition comprising at least one polyme... | 02/06/2001 |
