...that after Walter Hunt patented the safety pin in 1849, he sold the rights to it for $400?
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| Number | Title | Issue Date |
| 7371887 | Oligo(p-phenylene vinylene) amphiphiles and methods for self-assembly Amphiphilic oligo(p-phenylene vinylene) compounds and methods of use en route to self-assembled composites and device fabrication. ... | 05/13/2008 |
| 7193019 | Process for the production of vinyl compound A process for the production of a vinyl compound of the formula (1), which process comprises reacting a bifunctional phenylene ether oligomer of the formula (2) with a vinylbenzyl halide ... | 03/20/2007 |
| 7173157 | Method for producing an allyl compound An allyl compound having a formula different from that of an allyl starting compound is prepared by a process of reacting the allyl starting compound with a nucleophilic agent in the presence of a catalyst containing at least one transition metal compound containing... | 02/06/2007 |
| 7122708 | High-functionality polyether polyols and preparation thereof The invention relates to high-functionality polyether polyols of the general formula where each R′1 is an unsubstituted or substituted aliphatic or aromatic radical and each R′2 is an un... | 10/17/2006 |
| 6864397 | Difluoromethyl ether derivative and process for producing the same The present invention provides a process for producing a difluoromethyl ether derivative simple and efficient process for producing the difluoromethyl ether derivative represented by Formula (1d′) or a difluoromethyl ether derivative represented by Formula (1c′)... | 03/08/2005 |
| 6806395 | Process for preparation of 3,5-bisalkylphenols A process for producing a 3,5-bisalkylphenol (2) according to the following reaction scheme: (wherein R1 represents a hydrogen atom, an alkali metal atom, an alkaline earth metal atom, or a hydroxyl-protecti... | 10/19/2004 |
| 6790868 | Non-halogenated phenoxy and/or benzyloxy substituted phenols, antimicrobial compositions containing the same, and methods of using the same Antimicrobial compounds, compositions containing the same, and methods of using of the same for reducing the presence of microorganisms on a substrate or in a fluid environment comprising an antimicrobial effective carrier and at least one antimicrobial compounds in... | 09/14/2004 |
| 6767923 | Benzhydryl derivatives Benzhydryl derivatives of the formula I, where the index and the variables are as defined below: X is oxygen or sulfur; R1, R3 are halogen, cyano, nitro, hydroxyl, mercapto, amino, alk... | 07/27/2004 |
| 6670512 | Substituted tetraarylethylene compounds The present invention seeks to provide novel tetraarylethylene compounds which are substituted on the aryl rings ortho to the ethylenic carbon atoms and processes for the preparation for such compounds. The compounds have potential use as molecular templa... | 12/30/2003 |
| 6541673 | Process for oxyalkylating phenolic compounds Phenolic polyether polyols are prepared by a two stage oxyalkylation process, a first stage performed at a high oxyalkylation temperature and a second stage at a lower oxyalkylation temperature. Despite the use of high temperature during oxyalkylation, po... | 04/01/2003 |
| 6281250 | Retinyl ethers, derivatives and analogues and inhibition of breast carcinogenesis The present invention is directed to retinyl ethers, derivatives and analogues and their use in inhibiting breast carcinogenesis or breast cancer cell growth.... | 08/28/2001 |
| 6211416 | Method for producing enol ethers Enol ethers of the formula I ##STR1## where R1 is an aliphatic, cycloaliphatic, araliphatic, aromatic or heterocyclic radical which may carry further substituents which do not react with acetylenes or allenes, and the radicals R, independently ... | 04/03/2001 |
| 6207835 | Process for the preparation of arylmetal compounds and their reaction with electrophilic reagents Arylmetal compounds are prepared by deprotonation of aromatics which have a hydrogen atom in the ortho position relative to a halogen atom or a trifluoromethoxy group, using a suitable base or by halogen-metal exchange of haloaromatics using a suitable me... | 03/27/2001 |
| 6093517 | Calixarenes for use as dissolution inhibitors in lithographic photoresist compositions A lithographic photoresist composition is provided containing novel calixarene compounds, particularly calix[4]resorcinarenes that are partially or wholly protected with acid-labile functionalities, as dissolution inhibitors. Also provided is a process fo... | 07/25/2000 |
| 5780403 | Ash-free detergents their preparation and use in lubricating oil compositions A compound comprised of a moiety derived from an organic nitrogen-containing base and a calixarene moiety in which the hydroxyl substituent (or substituents) is (are) substituted by oligoether chains. Typically, the compounds are complexes of the formula ... | 07/14/1998 |
| 5618984 | Phenol aralkyl resins, preparation process thereof and epoxy resin compositions An allyletherificated phenol aralkyl resin is obtained through the reaction of a phenol aralkyl resin with an allyl halide in the presence of a base in an organic solvent at room temperature to 100° C. and changed into an allylated phenol aralkyl resin a... | 04/08/1997 |
| 5510540 | Polyfunctional vinyl ether compound and photoresist resin composition containing the same A polyfunctional vinyl ether compound represented by formula (I): ##STR1## wherein n, which is an average repeating number, represents a number of from 0 to 20; R1 and R2 each independently represents a hydrogen atom, a halogen ... | 04/23/1996 |
| 5493050 | Diphenyl dialkyl methane surfactants In one embodiment, the present invention relates to novel two tail--two head and two tail--one head surfactants. In one embodiment, the present invention comprises a novel composition of matter having the general formula: ##STR1## wherein R1 and... | 02/20/1996 |
| 5463133 | Phenethyl alcohol derivative and recording material containing the same The present invention is to provide phenethyl alcohol derivative represented by the general formula (I), which is a stabilizing agent for colored images, particularly improved in resistance to plasticizers for the use in recording materials. ##STR1##... | 10/31/1995 |
| 5386058 | Method of producing polymethine dyes A method for producing polymethine dyes comprising the steps of: (a) reacting a 1,1-diaryl-2-metallo-ethene with an ω, ω,-diaryl-polyalkene-aldehyde in an anhydrous solvent under an inert atmosphere; and (b) neutralizing the reaction mixture from step (a) wi... | 01/31/1995 |
| 5362822 | Mesogenic adducts An adduct is prepared by reacting (A) a compound containing at least one epoxy group per molecule, with (B) a compound containing at least one epoxide reactive group per molecule selected from the group consisting of phenolic, thiol, secondary amine and c... | 11/08/1994 |
| 5288923 | Preparation of ethers of diphenols A process for the preparation of hydroxyalkyl ethers of diphenols is disclosed. Accordingly, aromatic polycarbonate resin is reacted with alkylene diol in the presence of a basic catalyst, at temperatures of 150° to 250° C. at a molar ratio of 514 10 mo... | 02/22/1994 |
| 5258410 | Aromatic compounds, their production processes and their compositions for the control of insect pests An aromatic compound of the formula ##STR1## , which is useful as an insect pest controlling agent.... | 11/02/1993 |
| 5250742 | Process for the production of propargyl ethers and new propargyl ethers The invention relates to a process for the production of new propargyl ethers in the presence of iron as catalyst and to new propargyl ethers.... | 10/05/1993 |
| 5242996 | Modified epoxy resins having acetylenically unsaturated functions A modified epoxy resin or compound of the formula: ##STR1## wherein A is the backbone reside of a glycidyl ether epoxy resin with removal of the glycidyloxy groups; R1 and R2 are independently a hydrogen atom or C1 -C... | 09/07/1993 |
| 5243087 | Pyridine derivatives, their production processes and their compositions for the control of insect pests A pyridine derivative of the formula: ##STR1## wherein R1 is, the same or different, each a hydrogen atom, a halogen atom, a C1 -C4 alkyl group, a C1 -C4 haloalkyl group, a C1 -C3... | 09/07/1993 |
| 5235091 | Process for preparing diphenylmethane compounds A diphenylmethane compound (III) can be produced in a good yield by allowing a phenol compound (I) to react with a stilbene compound (II) in the presence of methanesulfonic acid ##STR1##... | 08/10/1993 |
| 5151531 | Dihydric phenols Dihydric phenol suitable for the preparation of polycarbonates are represented by the following formula: ##STR1##... | 09/29/1992 |
| 5132437 | Synthesis of 1-aminoanthraquinone 1-Aminoanthraquinone (1-AAQ) is synthesized by the reaction of 2-chlorobenzyl chloride and xylene in the presence of a solid acid catalyst to yield 2-chloro dimethyldiphenylmethane, subsequent oxidation of the methyl groups, ring closure to form a 1-chlor... | 07/21/1992 |
| 5130435 | Preparation of vinyl ethers Vinyl ethers of the formula ##STR1## wherein R1, R2 and R3 are identical to or different from one another, each being hydrogen, straight-chain or branched alkyl or alkenyl of up to 12 carbon atoms, cycloalkyl or cyclo... | 07/14/1992 |
| 5091416 | Insecticidal compounds Insecticidal and acaricidal compounds of formula: ##STR1## and stereoisomers thereof, where R1 represents C1-4 alkyl, R2 represents H, CN, CH3, or CF3 ; Q represents CH or N; and Z represents one... | 02/25/1992 |
| 5070117 | Aromatic vinyl ether compounds and compositions, and method of making the same An aromatic vinyl ether of the formula: ##STR1## wherein: R1, R2, R4, R5, R6, R8, R9, and R10 are independently selected from hydrogen, halogen, and C1... | 12/03/1991 |
| 5068457 | Method for making hydroxy-terminated arylene ethers A method for making hydroxy-terminated arylene ethers is provided by condensing an aromatic diol, such as hydroquinone with 4-fluoroacetophenone followed by a Baeyer-Villiger oxidation, and hydrolysis of the resulting diester.... | 11/26/1991 |
| 5059723 | Hydroxyalkylation of phenols or thiophenols with cyclic organic carbonates using triorganophosphine catalysts This invention relates to the use of triorganophosphine compounds as catalyst for the reaction of phenols or thiophenols with cyclic organic carbonates.... | 10/22/1991 |
| 5012004 | Ether compounds and their production, and insecticidal and/or acaricidal compositions containing them An insecticidal and/or acaricidal composition which comprises as an active ingredient an insecticidally and/or acaricidally effective amount of at least one ether compound of the formula: ##STR1## wherein X1 is a hydrogen atom, a halogen a... | 04/30/1991 |
| 5004842 | Aromatic vinyl ether compounds and compositions, and method of making the same An aromatic vinyl ether of the formula: ##STR1## wherein: R1, R2, R4, R5, R6, R8, R9, and R10 are independently selected from hydrogen, halogen, and C1... | 04/02/1991 |
| 4999448 | Method of preparing bis-phenol ethers A method of preparing a compound of Formula XII ##STR1## wherein R1 and R2 together represent the fragment --Ch2 CH2 --; each R4 independently represents C1 -C4 alkyl optionally ... | 03/12/1991 |
| 4997989 | Tert-butylalkynols Novel tert-butylalkynols of the formula (I) ##STR1## where Y is hydrogen, halogen, C1 -C4 -alkyl, C1 -C4 -alkoxy, C1 -C4 -haloalkyl, aryl, aryloxy or benzyl and m is an integer from 1 ... | 03/05/1991 |
| 4987272 | Dipropargyl ether of alpha, alpha'-bis (4-hydroxypenyl)-paradiisopropylbenzene Novel dipropargyl ether of alpha, alpha'-bis(4-hydroxyphenyl)-para-diisopropylbenzene is useful in preparing resins having desirable properties as laminates and the like.... | 01/22/1991 |
| 4954582 | Benzyloxy vinyl ethers The invention relates to benzyloxy vinyl ethers having the structure ##STR1## wherein R1 is lower alkyl; p is an integer having a value of from 0 to 2; q is an integer having a value of from 1 to 20; r is an integer having a value of from 1 to 6; n ... | 09/04/1990 |