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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 568/745 - Halogen containing


Subclass of Class 568 - Organic compounds -- part of the class 532-570 series
Definition: Compounds which contain halogen.
No. of patents: 34
Last issue date: 09/14/1999


NumberTitleIssue Date
5952386Dihalopropene 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
5777007Brominated p-cumylphenol flame-retardants for resin composition
Brominated p-cumylphenol represented by the formula (1) described hereinafter and derivative thereof represented by the formula (2) described hereinabove, process for the preparation of the same, and flame-retardant resin compositions containing the same,...
07/07/1998
5530030Nematicides against pine wood nematodes
Highly effective nematicides against pine wood nematodes containing chlorinated hydroxystilbene or salts thereof (preferably, 3',4'-Dichloro-3-hydroxystilbene and 3',5'-dichloro-3-hydroxystilbene) which are prepared by synthesizing chlorinated methoxystil...
06/25/1996
5420361Formulation of and dehydration of hydroxylated diphenyl acetylenes
The production of cis-dihydrodiol compounds of the formula ##STR1## where n is 0 or 1 (preferably 0) by the microbial oxidation of a diphenylaceylene compound of the formula ##STR2## using a mutant of a Pseudomonas bacteria at 25° to 35° C. ...
05/30/1995
5258554Process for monobenzylation of p-substituted phenols
The invention relates to a process for the preparation of p-substituted o-benzylphenols by reaction of p-substituted phenols with optionally substituted benzyl halides, benzyl esters, benzyl alcohols or benzyl ethers in the presence of an acid catalyst at...
11/02/1993
5110983Hexafluoroisopropyl-containing monomers, process for their preparation and their use
Compounds of the formula I ##STR1## can be prepared by various process steps from 2-(4-methylphenyl)-2-hexafluoroisopropanol. Hexafluoroisopropyl-containing monomers are important starting compounds in the preparation of linear polycarboxamides and p...
05/05/1992
5072017Process for the preparation of P-substituted O-benzylphenols
Para-substituted o-benzylphenols are prepared by reacting p-substituted phenols with benzylating agents in the presence of zeolites of the faujasite type at elevated temperature....
12/10/1991
50474201,3-diaryl cyclopentanes and derivatives thereof as PAF antagonists
Novel 1,3-diaryl cyclopentanes of the following general formula were prepared. ##STR1## These compounds were found to have potent and specific PAF (Platelet Activating Factor) antagonistic activities and as such useful in the treatment or amelio...
09/10/1991
4871470Cyclohexane derivatives
Cyclohexane derivatives of formula I ##STR1## wherein R is an alkyl group which has 1-12 C atoms and in which one or two non-adjacent CH2 groups can also be replaced by O, --CO--O-- or --OCO--, A1 and A2 each independ...
10/03/1989
47727551,2-1,4 addition reaction sequence leading to disubstituted acelylenes
A method for synthesizing a tri-substituted phenyl compound (I) by using a 1,2-addition followed by a 1,4-addition to 1,4-benzoquinone (II): ##STR1## wherein X is hydroxy, alkoxy or alkanoyloxy, Ar1 is an organic group and R is an unsubsti...
09/20/1988
4705901Brominated hydroxyaromatic compounds
Prepare novel ring-brominated derivatives of tetraalkyl dihydroxy diaromatic compounds, e.g. 4,4'-(1,2-ethanediyl)bis(3,5-dibromo-2,6-dimethyl-phenol)....
11/10/1987
4686235Substituted cinnamyl-2,3-dihydrobenzofuran and analogs useful as anti-inflammatory agents
Substituted cinnamyl-2,3-dihydrobenzofurans and analogs were prepared from the nucleophlic substitution of a cinnamylhalide with a 2,3-dihydrobenzofuran anion or an analog thereof. These compounds were found to be potent topical anti-inflammatory agents....
08/11/1987
4532367Antimicrobially effective derivatives of phenol and methods for their production
A method is provided for the production of antimicrobially effective phenol derivatives according to general Formula I in which R1 is bromine or chlorine, R2 is methyl or ethyl, R3 is hydrogen or sodium, potassium, ammoniu...
07/30/1985
4510338Resorcin derivatives, process for their preparation and pharmaceutical compositions containing them
The invention relates to new resorcin derivatives of the formula (I) ##STR1## wherein R1 and R2 independently represent hydrogen, halogen, trihalomethyl, alkyl having from one to 3 carbon atoms or alkoxy having from one to 3 car...
04/09/1985
45089264-Hydroxy-benzhydrols, process for their preparation and pharmaceutical compositions containing them
The invention relates to new 4-hydroxy-benzhydrols of the formula (I) ##STR1## wherein R1 and R2 independently represent hydrogen, halogen, trihalomethyl, alkyl having from one to 4 carbon atoms or alkoxy having from one to 4 ca...
04/02/1985
4410737Preparation of meta-chlorophenols by selective hydrodechlorination of polychlorophenols
Meta-chlorophenols useful as intermediates in various organic syntheses are prepared by selectively catalytically hydrodechlorinating a polychlorophenol in liquid phase in an acid solvent medium which is at least partially aqueous and which comprises hali...
10/18/1983
4410738Preparation of meta-chlorophenols by selective hydrodechlorination of polychlorophenols
Meta-chlorophenols useful as intermediates in various organic syntheses are prepared by selectively catalytically hydrodechlorinating a polychlorophenol in liquid phase in an acid solvent medium which is at least partially aqueous, in the presence of a Gr...
10/18/1983
4410739Preparation of meta-chlorophenols by selective hydrodechlorination of polychlorophenols
Meta-chlorophenols useful as intermediates in various organic syntheses are prepared by selectively catalytically hydrodechlorinating a polychlorophenol in liquid organic phase and in the presence of a nobel metal catalyst and a Lewis acid, said polychlor...
10/18/1983
43918273-(2-Hydroxy-4-(substituted)phenyl)-cycloalkanone and cycloalkanol analgesic agents and intermediates therefor
Cycloalkanones, cycloalkanols and unsaturated analogs thereof, each of which has at the 3-position a 2-hydroxy-4-substituted phenyl group wherein the 4-position substituent is alkyl which can have an oxygen atom as part of the chain, or aralkyl which can ...
07/05/1983
4366330Intermediates useful in the production of liquid crystal compounds
An intermediate useful in the production of liquid crystal esters has a molecular structure ##STR1## in which of the groups R' and R" one is fluorine and the other is hydrogen, and in which R is an alkyl group having more than one carbon atom, a...
12/28/1982
4336270O-benzylphenols
Novel o-benzylphenols as well as a process for their production, a method for combating harmful microorganisms and compositions comprising said o-benzylphenols are provided....
06/22/1982
43070241,1,1-Triaryl-2,2,2-trifluoroethanes and process for their synthesis
New 1,1,1-triaryl-2,2,2-trifluoroethanes in which the aryl radicals carry one or more substitutents have been prepared by condensation of trifluoroacetophenones with substituted phenyl compounds in the presence of catalytic quantities of trifluoromethylsu...
12/22/1981
4212762Liquid crystal materials having a formula containing a diphenylethane nucleus
Novel mesomorphic substances, constituting, in certain temperature ranges, nematic or smectic liquid crystals which are compounds of the formula: ##STR1## wherein R1 is an alkyl or alkoxy group containing 1 to 10 atoms of carbon; R2
07/15/1980
4087554Method for improving growth rate and feed efficiency
The disclosure relates to a method for use in the practice of animal husbandry which comprises the oral administration to non-ruminant animals of an iodonium salt. Solid or liquid compositions of said iodonium salts for use in the said method are also dis...
05/02/1978
4081449Heterocyclic esters of alkylphenyl benzopyranopyridines
Heterocyclic esters of alkylphenyl benzopyranopyridines represented by the formula ##STR1## wherein R1 is hydrogen, loweralkyl, loweralkanoyl, cycloalkylloweralkyl, cycloalkylloweralkanoyl, loweralkenyl, loweralkynyl, haloloweralkenyl...
03/28/1978
4049653Heterocyclic esters of alkylphenyl benzopyrans
Heterocyclic esters of benzopyrans represented by the formula ##STR1## wherein n is 1 or 2; each R and R1 are the same or different members of the group consisting of hydrogen or loweralkyl; R2 is loweralkyl; R3 is ...
09/20/1977
40383273,5-Disubstituted-4-hydroxybenzyl derivative
A new series of compounds having the following formula is disclosed: ##STR1## wherein R1 and R2 are independently aralkyl or alkyl with the proviso that the aralkyl group contains no branching on the carbon alpha to the phenylen...
07/26/1977
4007207Alkyl substituted-4-oxo-cyclopenta benzopyrans
1,2,3,4-Tetrahydrocyclopenta[c][1]benzopyrans of the formulae ##STR1## wherein R is a lower alkyl group having 1 to 5 carbons, R1 is hydrogen or a lower alkyl group having 1 to 5 carbons, R2 is a lower alkyl group and R3
02/08/1977
39844822-(Dihalobenzyl)-6-nitro-4-t-butylphenol and preparation thereof
The specification describes novel 2-(4'-halobenzyl) phenols of the formula: ##SPC1## In which R1, R2 and R3, which may be the same or different, re hydrogen or a lower alkyl group, provided that only one of R1 , ...
10/05/1976
3976491Diazo compositions and diazotype materials prepared from same
Light-sensitive diazo compositions which comprise a resorcinol substituted in the 2-position with an alkyl group and in the 4-position with an aralkyl group as the yellow azo coupling component, and diazotype materials prepared therefrom....
08/24/1976
3974084Process for the manufacture of anhydrous alkali metal arylate solutions and separation of the arylates from alkali metal sulfite
Anhydrous organic solutions of alkali metal arylates are prepared by dissolving an alkali metal arylate or reacting an arylhydroxy compound with alkali metal hydroxide in a ketone immiscible or incompletely miscible with water at room temperature and remo...
08/10/1976
3957832Epoxy resins prepared from polyhydroxy-containing compounds
New polyhydroxy-containing compounds represented by the formula ##SPC1## Wherein A is --O-- or an alkylidene group having 1 to 4 carbon atoms, Y1, Y2, Y3 and Y4 are independently selected from --OH or ##SPC...
05/18/1976
39312172,3-Dihydro-5-alkoxy-5-phenyl-5H-imidazo[2,1-a]isoindoles
Novel 2[2-(1,3-diazacycloalk-2-enyl)]benzophenone compounds and novel 1,3-diazacycloalkenyl[2,1-a]isoindole compounds having useful analgesic and psychostimulant properties are prepared inter alia by condensation of o-benzoylbenzaldehydes with aliphatic d...
01/06/1976
3931340Chlorination of aromatic compounds
Nuclear chlorination of aromatic compounds having an electron donating group is effected by contacting said aromatic compound with copper (II) chloride in an aqeuous hydrochloric acid solution and adding chlorine to the reaction system to maintain the mol...
01/06/1976
 
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