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 |
| 7367994 | Composition for dyeing keratin fibers, comprising a sulfonamidoxanthene direct dye, and dyeing process using the same The present invention relates to a composition for dyeing keratin fibers, in particular human keratin fibers and more particularly the hair, which comprises at least one compound chosen from direct dyes of sulfonamidoxanthene type, in other words sulfonamide derivat... | 05/06/2008 |
| 5900029 | Reaction of carbon black with diazonium salts, resultant carbon black products and their uses Processes for coloring a fiber or textile by adding a carbon black product having an organic group attached to the carbon black. In one process at least one diazonium salt reacts with a carbon black in the absence of an externally applied electric current... | 05/04/1999 |
| 5554196 | Method of marking a surface of an object by means of a laser light Method of marking a surface of an object by means of a laser light beam. A description is given of a method of decorating or marking, for example, synthetic resin objects by means of an UV-laser or IR-laser by coating the object with a layer of a dye precursor... | 09/10/1996 |
| 5540739 | Process for dyeing naturally occurring or synthetic polyamide fibres A process for dyeing textile materials of naturally occurring and synthetic polyamide fibres, in which dyeing is carried out at the boiling point of the dyebath during a short dyeing time which is therefore gentle on the fibres, and level dyeings having g... | 07/30/1996 |
| 4886338 | Optical fiber event sensor A micro pH sensor is constructed by reacting powdered aminoalkylated cellulose with a dye to covalently bond the dye to the aminoalkyl groups on the cellulose. Any excess unreacted aminoalkyl groups are blocked with a blocking agent and the dye containing... | 12/12/1989 |
| 4787912 | Dyeing assistant and use thereof for dyeing or whitening synthetic nitrogen-containing fibre materials An assistant for dyeing or whitening synthetic nitrogen-containing fibre material, which comprises (A) a sulfonated polycarboxylate, (B) an anionic surfactant, (C) a nonionic surfactant, and (D) a water-soluble organic, polar solvent. The assistant is especially us... | 11/29/1988 |
| 4723961 | Process and agent for the one-bath reoxidizing and soaping of dyeings with vat or sulfur vat dyes with hypochlorite-releasing compounds and anionic detergents The alkaline reoxidation of vat and sulfur vat dyes by means of hydrogen peroxide is difficult to control and to keep constant. By using agents which split off hypochlorite in the heat, for example sodium N-chloro-p-toluenesulfonamide, at pH values above ... | 02/09/1988 |
| 4499304 | Color-forming sulfonamidodiphenylamines and corresponding sulfonimide dyes Color-forming para-sulfonamidodiphenylamines and their corresponding sulfonimide dyes are useful in imaging materials. The color-forming sulfonamidodiphenylamines are prepared by condensation reactions. The corresponding sulfonimide dyes are formed by oxi... | 02/12/1985 |
| 4488880 | Process for the reoxidation of dyeings made with sulfur dyestuffs The reoxidation of sulfur dyestuffs in an acid medium is associated with disadvantages, such as pollution of the environment, the risk of corrosion on equipment etc. Admittedly oxidation in an alkaline medium does not have these disadvantages, but it is, ... | 12/18/1984 |
| 4439206 | Dyeing process with reactive dyes and glycidyl compound The present invention relates to a new dyeing process based on the exhaustion principle. It is characterized in that dyeing liquors are used which, in addition to the dyestuff or dyestuff mixture, contain one or more salts, at least one compound having a ... | 03/27/1984 |
| 4213757 | Aqueous dye formulations for cellulose or cellulose-containing fibers Aqueous dye formulations which contain one or more sparingly water-soluble, or water-insoluble, phthalocyanine-sulfonamides of the formula ##STR1## where A is a (n+m)-valent radical of copper phthalocyanine, cobalt phthalocyanine or nickel phthalocya... | 07/22/1980 |
| 4080166 | Emulsifiers for dyeing accelerators based on alkylnaphthalenes Emulsifiers for preparing dyeing accelerators (carriers) based on alkylnaphthalenes consisting of a multi-component system of (a) a mixture of sulfonated and oxylated alkylaryl compounds, (b) alkanols, (c) sodium alkylsulfonamido acetic acid, (d) partiall... | 03/21/1978 |
| 3961883 | Process for printing a fiber product containing acrylic fibers and cellulosic fibers The invention is concerned with printing fabrics containing (a) acrylic fibers and/or modacrylic fibers having acidic dyesites but free of basic dyesites and (b) cellulosic fibers with a printing paste containing (A) an acid dye containing a single sulfon... | 06/08/1976 |
