Did You Know...
...that in the early 1940s GE engineer James Wright was charged with a task of utmost importance to the war effort: develop a cheap substitute for rubber that could be used to produce tires, gas masks and a whole host of military gear. Wright tackled the task diligently -- and wound up inventing Silly Putty.
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| Number | Title | Issue Date |
| 7863493 | Process for preparing an organic hydroperoxide, industrial set-up therefore and process wherein such organic hydroperoxide is used in the preparation of an alkylene oxide A process for preparing an organic hydroperoxide, which process comprises: (a) oxidizing an organic compound to obtain an organic reaction product containing organic hydroperoxide; (b) mixing at least part of the organic reaction product of... | 01/04/2011 |
| 7312350 | Process for preparing arylalkynes The invention relates to a process for preparing arylvinyl halides and sulphonates and arylalkynes by reacting haloaromatics or aryl sulphonates with vinyl halides or sulphonates in the presence of a palladium catalyst and a base and, if appropriate, subsequent elim... | 12/25/2007 |
| 7041856 | Coupling catalyst and process using the same There are disclosed a process for producing a coupling compound of formula (1): (Y—)(n−1)R1—R2—(R1)(n′−1), (1) wherein R1 and R2 | 05/09/2006 |
| 7030285 | Alkylation process A side-chain of a substituted aromatic compound is alkylated by reacting the aromatic compound with an alkylating agent in the presence of a catalyst. The catalyst comprises a restructured smectite clay to which basic ions are incorporated by ion-exchange. The restr... | 04/18/2006 |
| 6929787 | Composite and manufacturing method thereof A composite which is easy to manufacture and has excellent catalytic activity and mechanical strength is obtained by heating and drying a mixture of a carrier in powder form and a metal hydroxide in powder form or in molten form under a gas flow or under reduced pre... | 08/16/2005 |
| 6921731 | Process for regenerating Pd catalysts Process for regenerating a Pd catalyst after a homogeneously catalyzed C—C coupling reaction in which the Pd catalyst precipitates, is separated from the reaction mixture and subsequently treated with I2 or Br2. The Pd catalyst can then be us... | 07/26/2005 |
| 6703436 | Neopentylglycol ester based plasticizer composition for polyvinyl chloride resin and method of process thereof The present invention relates to a plasticizer composition, and more particularly a plasticizer composition comprising neopentylglycol ester capable of being using as plasticizer of polyvinyl chloride resin, and method of prepation thereof. The plasticize... | 03/09/2004 |
| 6603013 | Heterogeneously catalyzed process for cross coupling alkenyl halides with boronic acids The present invention relates to a process wherein heterogeneous finely-dispersed palladium catalysts are used in a cross-coupling reaction of alkenyl halides and aryl or heteroaryl boronic acids in the presence of base in an aprotic solvent to produce ar... | 08/05/2003 |
| 6462246 | Method of preparing alkenyl-substituted aromatic hydrocarbon A method of preparing an alkenyl-substituted aromatic hydrocarbon, which comprises alkenylating an aromatic hydrocarbon with an olefin using ଲ-diketone together with a rhodium complex catalyst in the presence of oxygen.... | 10/08/2002 |
| 6414206 | Process for preparing bisindenylalkanes The present invention relates to a process for preparing bisindenylalkanes of formula I: ##STR1## wherein R1, R2, R3, and R4 independently represent H or a C1 -C6 hydrocarbon group or R | 07/02/2002 |
| 6403852 | Process for producing alkenyl-substituted aromatic hydrocarbons There are provided a process for producing an alkenyl-substituted aromatic hydrocarbon by alkenylation of an alkyl-substituted aromatic hydrocarbon having a hydrogen atom at the -position of a side chain thereof with a conjugated diene, using a cat... | 06/11/2002 |
| 6239324 | Diene compound and process for producing the same The invention provides a chain diene compound with desirable regioselectivity, in the presence of a specific ruthenium compound. This chain diene compound is a promising raw material for terpene. It has a structure represented by the general formula (IX):... | 05/29/2001 |
| 6194627 | Process for preparing aromatic olefins by using palladaphosphacyclobutanes as catalysts The invention relates to a process for preparing monofunctional, bifunctional and polyfunctional aromatic olefins of the formula (I) ##STR1## by reacting haloaromatics of the formula (II) ##STR2## with olefins of the formula (III) ##STR3## wherein a ... | 02/27/2001 |
| 6127590 | Oxidative coupling of olefins and aromatics using a rhodium catalyst and a copper(II) redox agent This invention relates generally to the field of chemical synthesis, and more specifically, to the field of oxidative coupling of olefinic compounds and aromatic compounds, to produce olefinically substituted aromatic compounds. More particularly, this in... | 10/03/2000 |
| 6096920 | Preparation of carboxylic compounds and their derivatives Palladium-catalyzed arylation of an olefin (e.g., ethylene) with an aromatic halide (e.g., 2-bromo-6-methoxynaphthalene, m-bromobenzophenone, or 4-isobutyl-1-bromobenzene) is conducted in specified media. After a special acid or base phase separation proc... | 08/01/2000 |
| 6005151 | Processs for preparing aromatic olefins using palladacycle catalysis The invention relates to a process for preparing monofunctional, bifunctional or polyfunctional aromatic olefins of the formula (I) ##STR1## wherein a palladium compound of the formula (IV) ##STR2## is used as a catalyst in the preparation of th... | 12/21/1999 |
| 5811611 | Method for producing monoalkenyl benzene A method for producing a monoalkenyl benzene including reacting an alkyl benzene having 7 to 10 carbon atoms with a conjugated diene compound having 4 to 6 carbon atoms in the presence of a particular catalyst. The particular catalyst is obtained by depos... | 09/22/1998 |
| 5789639 | Process for manufacturing alkenyl compounds A process for manufacturing an alkenyl compound which comprises reacting an alkylbenzene and 1,3-butadiene in the presence of metallic sodium or a combination of metallic sodium and an oxide, a hydroxide, or a salt of potassium, rubidium or an alkaline ea... | 08/04/1998 |
| 5659097 | Process for producing a monoalkenyl aromatic hydrocarbon compound A process for producing a monoalkenyl aromatic hydrocarbon which comprises alkenylating a side chain of an aromatic hydrocarbon compound having at least one hydrogen atom at the -position of a side chain (such as o-xylene) with a conjugated diene h... | 08/19/1997 |
| 5523504 | Process for manufacturing alkenyl aromatic compounds A process for manufacturing an alkenyl aromatic compound which is an industrially valuable compound as a raw material for the manufacture of naphthalenedicarboxylic acid, a highly useful raw material of polymers. The process comprises reacting an alkylben... | 06/04/1996 |
| 5475176 | Process for preparing vinyl-substituted aromatic compounds from arylamines The present invention relates to a process for preparing vinyl-substituted aromatic compounds of the formula (I) Ar--CH.dbd.CH2, where Ar is a phenyl group that may bear 1 to 5 substituents, naphthyl or anthryl or a naphthyl radical bearing 1 t... | 12/12/1995 |
| 5444172 | Process for producing a monoalkenyl aromatic hydrocarbon compound There is disclosed a process for producing a monoalkenylbenzene which comprises alkenylating a side chain of an aromatic hydrocarbon compound having at least one hydrogen atom bonded at -position of the side chain (such as xylene) with a conjugated... | 08/22/1995 |
| 5436381 | Process for producing a monoalkenyl aromatic hydrocarbon compound There is disclosed a process for producing a monoalkenylbenzene which comprises alkenylating a side chain of an aromatic hydrocarbon compound having at least one hydrogen atom bonded at -position of the side chain (such as xylene) with a conjugated... | 07/25/1995 |
| 5344806 | Process for producing monoalkenyl aromatic hydrocarbon compound There is disclosed a process for producing a monoalkenyl aromatic hydrocarbon compound which comprises alkenylating a side chain of an aromatic hydrocarbon compound having at least one hydrogen atom bonded at -position of the side chain (such as xy... | 09/06/1994 |
| 5334794 | Process for producing monoalkenyl aromatic hydrocarbon compound A process for producing a monoalkenyl aromatic hydrocarbon compound which comprises alkenylating a side chain of an aromatic hydrocarbon compound having at least one hydrogen atom bonded at an -position of the side chain (such as xylene) with a con... | 08/02/1994 |
| 5329058 | Process for producing alkenylbenzene In a process for producing an alkenylbenzene by the reaction of an alkylbenzene having 8 or more carbon atoms and a conjugated diolefin, the improvement in which the reaction is performed in the presence of a catalyst obtained by dispersing (a) an alkali ... | 07/12/1994 |
| 5159082 | Process for producing aromatic compound A process for producing an aromatic compound is disclosed, which comprises coupling an aromatic sulfinic acid or a salt thereof with an aromatic halogen compound having at least one halogen atom attached to the carbon atom of the aromatic nucleus thereof ... | 10/27/1992 |
| 5136114 | Process for the preparation of geminal diarylalkanes, new geminal diarylalkanes and alk(en)ylated aromatic compounds The invention relates to a new process for the preparation of geminal diarylalkanes of the formula ##STR1## by Friedel-Crafts alkylation of aromatic compounds with specific aliphatic halogen compounds (addition compounds of CCl4 , to ... | 08/04/1992 |
| 4962252 | Process for the production of alkenyl-substituted benzene derivatives Alkenyl-substituted benzene derivatives are produced by oxidatively coupling at elevated temperature a benzene having at least one activated saturated hydrocarbyl substituent in vapor form with a gaseous paraffinic hydrocarbon in the presence of a gaseous... | 10/09/1990 |
| 4962253 | Vinylation of aromatics catalyzed by cyclopentadienyl, indenyl, or fluorenyl rhodium complexes, and novel indenyl and fluorenyl rhodium complexes A process for the preparation of vinyl aromatic compounds comprises contacting an aromatic compound and an olefin in the presence of a catalytic amount of a cyclopentadienyl, indenyl, or fluorenyl rhodium complex under reaction conditions sufficient to fo... | 10/09/1990 |
| 4935559 | Olefination of iodoaromatic compounds A method of preparing an aryl alkene compound comprising reacting an iodoaromatic compound an alkene and an alkanol in the presence of a palladium catalyst and the absence of a Bronsted base.... | 06/19/1990 |
| 4912274 | Azaphospholenes and use thereof The invention relates to azaphospholenes of the type ##STR1## wherein R1 and R2 may be alkyl, aryl and aralkyl groups, processes for preparing same and the use thereof.... | 03/27/1990 |
| 4709109 | Preparation of alkenylaromatics Alkenylaromatics I ##STR1## where R1 is C1 -C6 -alkyl, R2 is H or C1 -C10 -alkyl and Ar is aryl, are prepared by reacting a vinylaromatic II ##STR2## with an -olefin I... | 11/24/1987 |
| 4620055 | Preparation of styrene and stilbene compounds The present invention provides a novel process for the preparation of styrene, stilbene, and/or substituted derivatives thereof. The process involves the reaction of an aryl sulfonyl chloride with an olefinic compound in the presence of a catalytic amount... | 10/28/1986 |
| 4499317 | Modified zeolite catalyst composition and process for alkylating toluene with methanol to form styrene A modified zeolite catalyst composition and process for using the catalyst composition to alkylate toluene (or derivative thereof) with methanol to form e.g. styrene and ethylbenzene (or derivatives thereof) is disclosed. The catalyst composition is exemp... | 02/12/1985 |
| 4499318 | Modified zeolite catalyst composition and process for alkylating toluene with methanol to form styrene A modified zeolite catalyst composition and process for using the catalyst composition to alkylate toluene (or derivative thereof) with methanol to form e.g. styrene and ethylbenzene (or derivatives thereof) is disclosed. The catalyst composition is exemp... | 02/12/1985 |
| 4489212 | Process for preparing allyl- and 2-chloropropyl- or propenylarene compounds Arenes are reacted with allyl chloride to produce allylarenes and 2-chloropropyl- or propenylarenes using a catalyst comprising a metal oxide substrate having tantalum (V) halide/oxide bound to the surface of the substrate.... | 12/18/1984 |
| 4479024 | Styrene from toluene and formaldehyde Toluene and formaldehyde produce styrene in a gas phase catalytic process using a basic hydroxide of Group I or II, at formaldehyde to toluene mole ratios of from 0.001 to 0.10.... | 10/23/1984 |
| 4463204 | Process for alkylating toluene with methanol to form styrene using a low sodium content potassium/cesium modified zeolite catalyst composition A process for alkylating toluene (or derivative thereof) with methanol to form e.g. styrene and ethylbenzene (or derivatives thereof) using a modified low sodium content zeolite catalyst composition is disclosed. The zeolite catalyst composition is exempl... | 07/31/1984 |
| 4446284 | Method for preparing a polymer containing pendant unsaturation There is disclosed a process for producing polymers that contain pendant unsaturation. The present invention provides a versatile method for the preparation of polymers that contain a wide range of unsaturated pendant groups.... | 05/01/1984 |
