Famous Patents
British merchant Peter Durand invented the tin can in 1810.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 3954394 | Method for the combined precleaning texture formation and stabilization and coloring of textile materials The dyeing and finishing of textured textile webs made of synthetic fibers is carried out by immersing the web in a hot dye solution, moving the web and solution in the same direction and at the same speed whereby a constant amount of dye liquid is applie... | 05/04/1976 |
| 3953162 | Dyeing process Dyeing nylon by applying sulphonated or unsulphonated dyestuffs containing cyclic anhydride groups, anhydride forming dicarboxylic acid groups or half-esters or half-amides thereof, as free acids or as salts with ammonia or volatile amines, and heating th... | 04/27/1976 |
| 3951599 | Polyamides having improved dyeability prepared from aromatic carboxylic monosulfonated compounds A basic dye receptive polyamide polymer and fiber and fabric prepared therefrom said polymer containing minor percentages of at least one sulfoaryloxycarboxylic acid or salt thereof.... | 04/20/1976 |
| 3951590 | Mixtures of optionally substituted sulfophenyl-azo-naphthylene or tetrahydronaphthylene-azo-para-alkoxyphenyl dyes Compounds of the formula ##SPC1## Wherein A is 1,4-naphthylene, substituted 1,4-naphthylene, 1,4-(5,6,7,8-tetrahydronaphthylene) or substituted 1,4-(5,6,7,8-tetrahydronaphthylene), wherein each substituent of substituted 1,4-naphthylene and substitut... | 04/20/1976 |
| 3951591 | Process for dyeing synthetic fiber materials A process for the continuous dyeing of synthetic fibrous materials from organic solvents, which comprises impregnating the said fibrous materials with organic dyebaths containing at least one dyestuff of the formula (1) ##SPC1## In which R represents a se... | 04/20/1976 |
| 3951598 | Viscous water-in-oil type dye or fluorescent brightening agent emulsion and method for the manufacture thereof A viscous water-in-oil type emulsion comprising a dye or a fluorescent brightening agent which is sparingly soluble in water and liquid hydrocarbons, water, a liquid hydrocarbon and a nonionic or amphoteric surface active agent. The emulsion is suitable f... | 04/20/1976 |
| 3950347 | Naphtholactam dyestuffs Naphtholactam dyestuffs of the formula ##SPC1## Wherein A represents the remaining members of an aromatic ring system and R represents hydrogen, alkyl, aralkyl, cycloalkyl, alkyl, aryl or an alkylene radical bonded to the naphthalene ring in the 2-positio... | 04/13/1976 |
| 3947407 | Fibre-reactive dyestuffs The invention relates to reactive dyestuffs containing as reactive group a radical of the formula ##EQU1## wherein R1 is hydrogen, C1 -C5 -alkyl, C1 -C5 -alkyl substituted by chlorine, bromine, ... | 03/30/1976 |
| 3943095 | Acid dyeable yarn from polyamide having N,N'-di (3-aminopropyl)piperazine moiety units Yarns of good color characterized by a high capability of being deeply dyed with acid dyes are spun from copolyamides having a relative viscosity of 35-75, an amine end concentration of 35-80 gram equivalents per 106 grams of polymer and a defi... | 03/09/1976 |
| 3940417 | Quaternised benzofuranyl-benzimidazoles The invention relates to new quaternised benzofuranyl-benzimidazole derivatives which can be prepared by known methods. Said compounds are useful as optical brighteners for organic material.... | 02/24/1976 |
| 3940246 | Sublimation transfer and isocyanate fixation of amino- or hydroxy-containing dyestuffs and transfer sheets therefor The invention relates to a process for the manufacture of prints which are fast to wet processings and sublimation on textile or non-textile sheets by means of the transfer printing process, wherein dyestuffs containing mercapto, hydroxyl and/or amino gro... | 02/24/1976 |
| 3936266 | Trihalo monoazo dyestuffs Monoazo dyes exhibiting excellent wash- and lightfastness and being essentially insensitive to acid having the formula ##SPC1## Wherein X, X1 and X2 are chlorine or bromine, and M is an alkali metal or hydrogen.... | 02/03/1976 |
| 3936268 | Method of reducing barre in synthetic polymide textiles dyed with acid dyes In dyeing nylon textiles with acid dyes, barre is reduced by using a synergistic mixture of a dye-leveling alkyl sulfonate and a dye-leveling alkyl aryl sulfonate.... | 02/03/1976 |
| 3935248 | Anthraquinone dyes A water-soluble anthraquinone dye having the general formula: ##SPC1## Wherein Z represents an optionally substituted hydrocarbon residue carrying at least one half sulphuric acid ester or sulphonic acid group. The dyes are suitable for the coloration of ... | 01/27/1976 |
| 3932378 | Sulfonated disazo dyestuffs containing an ether group Disazo compounds of the formula ##SPC1## In which R1 represents a sulphobenzene or sulphonaphthalene radical, B1, B2, E1 and E2 each represents a hydrogen atom, a low molecular alkyl or alkoxy radical... | 01/13/1976 |
| 3932446 | Quaternized 6-diethylamino-2-[benzimidazolyl-(2)]benzofuran A benzofuran compound of the formula ##SPC1## Where X- denotes HSO4- , CH3 SO4- , Cl-, Br-, 1/2 2ZnCl.sub. 4-.sup.- or CH3 COO-. The said ... | 01/13/1976 |
