Did You Know...
...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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| Number | Title | Issue Date |
| 5178671 | Ink, and ink-jet recording method and apparatus employing the ink Provided is an ink comprising a recording agent and a liquid medium for dissolution or dispersion thereof, the recording agent being a compound represented by the general formula ##STR1## where R1 is a radical selected from the group of lo... | 01/12/1993 |
| 5127946 | Ink, and ink-jet recording method and apparatus employing the ink Provided is an ink containing a recording agent and a liquid medium for dissolution or dispersion thereof, said ink comprising, as the recording agent, a compound represented by the general formula (A) ##STR1## where n is 0 or 1; R1, R | 07/07/1992 |
| 4841037 | Amino sulfonaphtholtrisazo compounds and recording liquids containing the same A naphthalene trisazo compound represented by the general formula (I) or (II): ##STR1## wherein A and B each represents a substituted or unsubstituted benzene or naphthalene ring; m represents zero or 1; and M represents an alkali metal atom, am... | 06/20/1989 |
| 4758659 | Hexakisazo dyes A hexakisazo dye suitable for dyeing cellulose, natural or synthetic polyamide meterials, leather, represented by the formula ##STR1## wherein X is --CH.dbd.CH--, --CONH--, --CRH-- (wherein R is phenyl which is unsubstituted or substituted by H or a ... | 07/19/1988 |
| 4665162 | 1:1 and 1:2 metal complexes of sulfo group-free azo compound having on average at least 1.3 basic water-solubilizing groups Metal-free azo compounds of the formula ##STR1## wherein Ra is an aromatic group or an active methylene coupling component radical as defined in the specification, Rt is an arylazo group or a group of the formula --Y--Z, wherein Y is a direct b... | 05/12/1987 |
| 4563520 | Metal complexes of dis- or trisazo compounds containing a middle component twice substituted by hydroxy and/or amino Compounds containing sulfonic acid groups and of the general formula I ##STR1## where D1 is a radical of a diazo component, X1 and X2 independently of one another are each hydroxyl or unsubstituted or substituted amin... | 01/07/1986 |
| 4540651 | Electrophotographic photosensitive member There is disclosed an electrophotographic photosensitive member comprising a photosensitive layer comprising a combination of a carrier generating layer and a carrier transporting layer provided on an electroconductive support, the carrier generating laye... | 09/10/1985 |
| 4081437 | Water soluble polyazo dyestuffs Dyestuffs of the formula: ##STR1## in which C2 represents the radical of the formula: ##STR2## where X is NH2 or OH, C1 and C3 are different residues of molecules C1 H and C3 H fr... | 03/28/1978 |
| 3969339 | Water-soluble pentakis-azo dyestuffs derived from 4,4'-diaminoazobenzene The invention is directed to pentakisazo dyestuffs of the formula: ##SPC1## In which A1 and A2 may be the same or different and each is monosulphonaphthylene, hydroxy-monosulpho-naphthylene or hydroxy-disulphonaphthylene and B1 | 07/13/1976 |
