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...that Charles Goodyear performed some of his experiments on rubber while in debtor's prison? He was there so often he referred to it as his "hotel". Chronically in debt because of poor business sense and ill health, Goodyear depended on the generosity of friends and family. Even after he unlocked the secret to vulcanizing rubber, he was unable to improve his financial situation. When he died, his estate was $200,000 in debt.

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Class 556/116 - Nitrogen containing


Subclass of Class 556 - Organic compounds -- part of the class 532-570 series
Definition: Compounds which contain nitrogen.
No. of patents: 139
Last issue date: 09/04/2007


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NumberTitleIssue Date
4093639Metal salts of N-hydroxyalkylated or N-aminoalkylated branched ଱-aminoacids
Metal complexes of zinc, copper, cobalt and nickel and N-ଲ-hydroxyalkylated or γ-aminoalkylated ଱-aminocarboxylic acids which are substituted at the ଱-carbon atom have excellent heat resistance, in particular a good heat resistance ...
06/06/1978
4089954Metal salts of fatty acid derivatives of amino acids
The invention relates to new compositions useful in the field of treatment of man, animals and plants. The compounds are of the formula : ##STR1## wherein : R-CO is the acyl moiety of a straight fatty acid RCOOH comprising from 6 to 20 carbon atoms. ...
05/16/1978
4069249N,N-di-(hydroxybenzyl)-trimethylene diaminediacetic acids
A novel chelating agent having the formula ##STR1## in whichA. EACH OF X1, X2, X3, and X4 is a member selected from the group consisting of (i) hydrogen; (ii) an alkyl group having 1-4 carbon atoms; (iii) -...
01/17/1978
40615422-Methyl-L-arginine produced by cultivating streptomyces strain
The compound 2-methyl-L-arginine having useful antibiotic and anti-bacterial properties and its methods of preparation from a new species of Streptomyces sp. X-11837 or from 5-hydroxy-2-pentanone....
12/06/1977
4055655Complexes of heavy metal ions and polyfunctional organic ligands used as antimicrobial agents
Antimicrobial agents are disclosed containing as the active ingredient a metal complex of a metal ion and a polyfunctional organic ligand. The antimicrobial metal complexes are characterized by a very unexpected aqueous proton induced dissociation propert...
10/25/1977
4048324Fungicidal composition and method
An improved fungicidal and fungistatic composition has been achieved, which does not stain plants, has neither phytotoxic effect nor toxicity to animals at concentrations required for controlling fungi development, and is biodegradable in soil. The compos...
09/13/1977
4046793Chelates for the regulation of metal-deficiency phenomena in plants
N-carboxymethyl-N-(hydroxybenzyl)-asparagic acids which may be further substituted in the phenyl nucleus possess metal-chelating properties for metals such as iron magnesium, calcium, manganese, cobalt, nickel, copper, zinc, cadmium or related metals. Che...
09/06/1977
4034037Carboxylation metallation process
A process for, and certain compositions of, the production of metal carboxylates or N-organic carbamates wherein the carboxylic acid or carbon dioxide and amine is converted to a solution of the corresponding ammonium carboxylate which in the presence of ...
07/05/1977
4020180Noncorrosive cuprammonia fungicide and method for using same
A substantially noncorrosive solution of cuprammonia low carboxylate complex of copper carboxylate and ammonium carboxylate is described wherein said complex is fungicidally and bactericidally effective when diluted with water in an amount of 3 to 200 par...
04/26/1977
4011167Lubricant compositions containing metal complexes as detergents
Lubricant compositions are provided containing a detergency improving amount of a metal complex prepared by (a) reacting a salt or oxide of a metal capable of forming a Werner complex with a compound containing at least one phenolic group to yield the met...
03/08/1977
3992159Process for purification by cryogenic sublimation
A process is described for purifying liquids by cryogenic sublimation. This process involves solidifying the liquid by reducing the temperature and pressure to below the triple point. Purification is then carried out by direct transformation from the soli...
11/16/1976
3990883N-(1-carboxy-3-methylthio)propyl urea derivatives and compositions having plant-growth regulating properties
Compounds corresponding to the general formulae: ##EQU1## in which R represents hydrogen, an alkyl radical, a halogenated alkyl raal, a cycloalkyl radical, an optionally substituted aryl radical, an optionally substituted aralkyl radical, an acyl ra...
11/09/1976
3988367Preparation of N,N'-dicarboxymethyl-1,3-propanediamines
N,N'-Dicarboxymethyl-1,3-propanediamine (designated PDDA) is prepared by reacting 1,3-propanediamine with formaldehyde and HCN to form hexahydropyrimidine-1,3-diacetonitrile, which is hydrolyzed with an aqueous alkali metal hydroxide to form dialkali meta...
10/26/1976
3981779Inhibition of scale on saline water heat exchange surfaces with iminodiacetic acid compounds
A method for decreasing fouling of metalliferous surfaces of apparatus wherein water is evaporated from an aqueous system containing components which deposit onto the surfaces as hydrophilic foulants. The method comprises adding to the aqueous system a ch...
09/21/1976
3962319଱-Hydroxy-ଲ-aminocarboxylic acids
New ଱-hydroxy-ଲ-aminocarboxylic acids which are agents for masking metal ions and auxiliaries for the paper and textile industries. Other outlets are in the textile industry in dyeing and bleaching, in metal refining, in the foodstuffs industr...
06/08/1976
3960942Leucine isoleucine separation
A process for separating leucine and isoleucine from an aqueous solution of these two amino acids, which comprises subjecting their copper or nickel salts to fractional crystallization at, alternately, relatively low and relatively high pH-values in the a...
06/01/1976
3937667Processes for separating metals
In conventional processes for separating metals by selective precipitation, the precipitate is frequently in an amorphous form, eg a slime, which is difficult to filter, wash and handle generally. In the present process mixed solutions and/or sols of the ...
02/10/1976
3933878Ligand complexes of cu(1)salts
Novel compositions of matter herein are claimed and may be represented by the general formula CuA.L, where CuA is a Cu(I) salt of medium to strong Bronsted acids and L is a ligand chosen from a variety of structural classes including phosphines, phosphite...
01/20/1976
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