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Patent No. 5377411

Hair Cutting Appliance

A haircutting appliance comprises an enclosed housing having a hollow handle connecting the housing to a vacuum source to carry away cut hairs from a subject's head.

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Class 562/595 - Unsaturated


Subclass of Class 562 - Organic compounds -- part of the class 532-570 series
Definition: Compounds wherein the acid contains a double or triple bond.
No. of patents: 226
Last issue date: 05/19/2009


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NumberTitleIssue Date
7534917Method of producing dicarboxylic acids
A method of producing dicarboxylic acids (e.g., α,ω dicarboxylic acids) by reacting a compound having a terminal COOH (e.g., unsaturated fatty acid such as oleic acid) and containing at least one carbon-carbon double bond with a second generation Grubbs catalyst i...
05/19/2009
7348455Process for producing (meth)acrylic acids
A process for producing (meth)acrylic acid or (meth)acrylic acid esters, which comprises a reaction step comprising vapor phase catalytic oxidation of propylene, propane or isobutylene and, if necessary, a reaction step comprising an esterification step, characteriz...
03/25/2008
7001625Solid phase synthesis of salts of organic acids including butyric acid
A process for the solid-phase synthesis of salts of organic acids in a granular, free-flowing, and dust-free form particularly suited for use as animal feed additives. A mixture of liquid organic acids, including butyric acid, is applied to an inert, absorbent carri...
02/21/2006
6986909Solid phase synthesis of salts of organic acid
A process for the solid-phase synthesis of salts of organic acids in a granular, free-flowing, and dust-free form particularly suited for use as animal feed additives. A liquid organic acid is applied to an inert, absorbent carrier. A solid base is then added during...
01/17/2006
6982286Carbocyclic hydrazino inhibitors of copper-containing amine oxidases
The present invention is directed to carbocyclic hydrazino compounds that function as inhibitors of copper-containing amine oxidases commonly known as semicarbazide-sensitive amine oxidases (SSAO), including the human SSAO known as Vascular Adhesion Protein-I (VAP-1...
01/03/2006
6844463Method for the carbonylation of pentenoic acid and its derivatives thereof
Process for the carbonylation of n-pentenoic acid or its derivatives of the formula (I) C4H7—R1  (I) where R1 is —CN or COOR2 where R2 is hydrogen, alkyl or aryl by reactio...
01/18/2005
6696496Low water-soluble venlafaxine salts
Low water soluble salts of venlafaxine, especially venlafaxine maleate, are provided. Such salts can provide a variety of dosage forms including hydrogel-based extended release dosage forms....
02/24/2004
6664417Catalysts and processes for the conversion of succinates to citraconates or itaconates
Processes for producing citraconic anhydride and citraconic acid using porous materials with specific surface acidities and surface areas are described. The preferred catalyst is a porous gamma alumina. Itaconic acid is produced from citraconic acid. Itac...
12/16/2003
6504055Catalysts and processes for the conversion of succinates to citraconates or itaconates
Processes for producing citraconic anhydride and citraconic acid using porous materials with specific surface acidities and surface areas are described. The preferred catalyst is a porous gamma alumina. Itaconic acid is produced from citraconic acid. Itac...
01/07/2003
6482980Process for producing maleic acid
The present invention relates to a process for producing maleic acid with close control of the temperature for optimum conversion of maleic anhydride into maleic acid and minimal production of fumaric acid....
11/19/2002
6372943Polyenepolycarboxylic acids, derivatives thereof with respect to carboxyl groups, or salts of these
Polyenepolycarboxylic acids represented by the following formula (1); ##STR1## (wherein n represents an integer of 0 to 5 and m represents an integer of 1 or 2, provided m is 1 when n is 0), or derivatives thereof at their carboxyl group(s) or their salts...
04/16/2002
635301215-Hydroxyeicosatetraenoic acid-related compounds and methods of use
HETE derivatives and methods of their use for treating dry eye are disclosed....
03/05/2002
6156850Process for making polyalkenyl derivative of an unsaturated acidic reagent
A polyalkenyl derivative of an unsaturated acidic reagent prepared by the process of reacting a polyalkene having a Mn of at least 300 with an unsaturated acidic reagent at elevated temperatures in the absence of a strong acid until at least 25% of the po...
12/05/2000
6103935Process for production of fumaric acid by isomerization of maleic acid
The present invention relates to a process for the production of fumaric acid by the isomerization of maleic acid at high conversions which comprises heating maleic acid in the presence of phosphoric acid at a temperature sufficient to isomerize the malei...
08/15/2000
6046292Polymerizable mesophases based on substituted unsaturated carboxylic acids
Mesogens are provided based on substituted unsaturated carboxylic acids such as acrylic and methacrylic acid. Substitution of a variety of hydrophobic tails onto the carboxylic acid or acid derivative via the vinyl carbon proximal to the carbonyl of the c...
04/04/2000
5973166Method for the preparation of maleimides
In accordance with the present invention, there are provided improved methods for the preparation of maleimide monomers. This new method for the synthesis of maleimides is clearly superior to those documented in the prior art. Furthermore, the invention m...
10/26/1999
5929255Process for coproducing fumaric acid and maleic anhydride
The present invention provides a process for recovering fumaric acid formed as a by-product during the production of maleic anhydride so that both fumaric acid and maleic anhydride are obtained. The process of the present invention further eliminates the ...
07/27/1999
5905127Polymerizable mesophases based on substituted unsaturated carboxylic acids
Mesogens are provided based on substituted unsaturated carboxylic acids such as acrylic and methacrylic acid. Substitution of a variety of hydrophobic tails onto the carboxylic acid or acid derivative via the vinyl carbon proximal to the carbonyl of the c...
05/18/1999
5830966Cyclopolymerization monomers and polymers
Compounds of general formula (I) ##STR1## characterised in that R1 and R2 are independently selected from the group consisting of COOR, CN, aryl, substituted aryl, COOH, halogen, C(O)NHR4, C(O)NR5 R6
11/03/1998
5783724Allyl esters of 2-norbornane acrylic acids and 2-norbornylidene propionic aicds and perfumery uses thereof
Described are allyl esters of 2-norbornane acrylic acids and 2-norbornylidene propionic acids defined according to the generic structure: ##STR1## wherein the wavy line represents a carbon-carbon single bond or a carbon-carbon double bond; where...
07/21/1998
5698722Functionalization of polymers based on Koch chemistry and derivatives thereof
A Koch functionalized product which is the reaction product of at least one polymer having a number average molecular weight of at least 500 and at least ethylenic double bond per polymer chain, with carbon monoxide and a nucleophilic trapping agent. The ...
12/16/1997
5693359Dry food acidulent reminiscent of vinegar and food mixes containing it
A dry food acidulent composition, reminiscent of vinegar when hydrated, comprises a dry food acid, a buffering salt and a fully dissociatable salt. The dry food acid preferably comprises adipic, citric, fumaric, malic acid or a mixture. The buffering salt...
12/02/1997
5654472Triazole derivatives
The present invention relates to a novel glycerol derivative and a process for preparing the same, and a process for preparing a triazole derivative. According to the present invention, an optical active 2-arylglycerol derivative which is a novel and useful as...
08/05/1997
5629434Functionalization of polymers based on Koch chemistry and derivatives thereof
A Koch functionalized product which is the reaction product of at least one polymer having a number average molecular weight of at least 500 and at least one ethylenic double bond per polymer chain, with carbon monoxide and a nucleophilic trapping agent. ...
05/13/1997
5585517Process for reacting a perfluoroalkl iodide with an olefinic compound
A novel process is described for reacting a perfluoroalkyl iodide with an olefinic compound, which comprises carrying out a free-radical addition reaction of the perfluoroalkyl iodide to the olefin in the presence of azoic or peroxy initiator and a water-...
12/17/1996
5486528Basic ethers and process for the preparation thereof
Novel basic ether of general formula (I), ##STR1## wherein R1 and R2 are independently hydrogen, halogen or C1-4 alkoxy, or together they represent a 3,4-methylenedioxy group, R stands for C1-8 alkyl, R3
01/23/1996
5463111Process for preparing dialkyl 2-haloethyl malonates
Dialkyl 2-haloethyl malonates are prepared from a dialkyl cyclopropane-1,1-dicarboxylate by reaction with a hydrogen halide in the presence of a 1,2-dialkoxy ethane as a solvent and of a Friedel-Crafts catalyst....
10/31/1995
5451667Fumaric acid derivatives, process for the production thereof and pharmaceutical compositions containing same
Fumaric acid derivatives of the formula ##STR1## wherein R1 is a hydrogen atom, a C1 -C8 alkyl group or a metallic cation, and R2 is a saturated or unsaturated aliphatic C6 -C24 alkyl ...
09/19/1995
5430181Process for improving a controlled oxidation reaction
Process for improving a controlled oxidation reaction between at least one reactant and oxygen, in which at least one reactant is reacted with oxygen or an oxygen containing gas, constituting a reaction mixture, in the presence of at least one additional ...
07/04/1995
5373023Tetrahydronaphtalene derivatives, their preparation and pharmaceutical compositions containing them
The invention provides compounds which are tetrahydronaphthalene derivatives of the formula (I) ##STR1## wherein R1 represents a halogen atom, a cyano group, a nitro group, an unbranched (C1 -C6) alkoxy group, a (C
12/13/1994
5354887Preparation of hexene-1,6-dioic acids
Hexene-1,6-dioic acids, e.g., hex-3-ene-l,6-dioic acid, are prepared by reacting carbon monoxide and water with at least one diacyloxylated butene in a polar, aprotic and basic solvent, in the presence of a catalytically effective amount of palladium valu...
10/11/1994
5354895Oxadimethacrylics and preparation thereof
Oxadimethacrylics useful for preparing pollers have the general formula I CH2 .dbd.C(A)CH2 --O--CH2 C(B).dbd.CH2 I where A and B are selected from the group consisting of --COOR1, --COR1, --CONR...
10/11/1994
5350867Inhibitors of farnesyl protein transferase
The present invention is directed to compounds which inhibit farnesyl-protein transferase (FTase) and the farnesylation of the oncogene protein Ras. The invention is further directed to chemotherapeutic compositions containing the compounds of this invent...
09/27/1994
5321158Production of carboxylic acids
An improved process for the production of carboxylic acids and dicarboxylic acids by the catalytic oxidation of olefins and vicinal diols by hydrogen peroxide is provided. The process employs a rhenium (VII) catalyst, and a solvent comprising a mixture of...
06/14/1994
5312969Linear dicarbonylation of difunctionalized butenes
Difunctional butenes are linearly dicarbonylated into 3-hexene-1,6-dioic acid or alkyl diesters thereof, well suited for the ultimate production of, e.g., adipic acid, by reacting such difunctional butene with carbon monoxide and, if appropriate, an alcoh...
05/17/1994
5262439Soluble analogs of probucol
The invention provides a class of water-soluble probucol derivatives having one or more ester groups replacing the phenyl hydroxyl groups of the probucol molecule. Some derivatives have polar or charged functionalities such as carboxylic acid groups, amin...
11/16/1993
5260479Inhibitors of farnesyl protein transferase
The present invention is directed to compounds which inhibit farnesyl-protein transferase (FTase) and the farnesylation of the oncogene protein Ras. The invention is further directed to chemotherapeutic compositions containing the compounds of this invent...
11/09/1993
5245061Inhibitors of farnesyl protein transferase
The present invention is directed to compounds which inhibit farnesyl-protein transferase (FTase) and the farnesylation of the oncogene protein Ras. The invention is further directed to chemotherapeutic compositions containing the compounds of this invent...
09/14/1993
5216181Liquid telechelic polymers having high 1,4-diene structure
Liquid telechelic polymers are made from dienes and are produced via anionic polymerization. While having low molecular weight, for example less than 15,000, the telechelic polymers are generally gel-free, have high amounts of trans-1,4 structure, low vin...
06/01/1993
5214198Process for the manufacture of halomaleic and halofumaric esters
There is provided a method of manufacture of dialkyl monohalomaleate and dialkyl monohalofumarate and mixtures thereof via a dehydrohalogenation of the appropriate dialkyl dihalosuccinate precursor in the presence of an aqueous base and a phase transfer c...
05/25/1993
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