Bizarre Patents
A method of swing on a swing is disclosed, in which a user positioned on a standard swing suspended by two chains from a substantially horizontal tree branch induces side to side motion by pulling alternately on one chain and then the other.
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 |
| 7160335 | Anthraquinone dyes The present invention relates to a compound of formula I wherein R1 and R3 are each independently of the other —NHR5, NHSO2R5, —NHCOR5, —OR | 01/09/2007 |
| 6727372 | Colorant compounds containing copolymerizable vinyl groups Disclosed are novel colorant compounds which contain one or more ethylenically-unsaturated (vinyl), photopolymerizable radicals which may be copolymewrized (or cured) with ethylenically-unsaturated monomers to produce colored compositions such as colored acrylic coa... | 04/27/2004 |
| 6090165 | Dye mixtures and their use Dye mixtures which contain a dye of the formula ##STR1## together with a dye of the formula ##STR2## in which M+ in the dyes of the formulae (1) and (2) are ammonium cations ##STR3## which are identical to or different from... | 07/18/2000 |
| 5596128 | Sulfonating agent and sulfonation process A sulfonating agent represented by the general formula ##STR1## wherein the groups R1 are the same or different and are each a lower alkyl group having 1 to 3 carbon atoms, n is an integer of 3, 4 or 5, m is an integer of 1 or 2, and n+mà£... | 01/21/1997 |
| 5581000 | Sulfonic acid-substituted anthrahydroquinone alkylammonium salts Hydrogen peroxide is produced by oxidizing alkylammonium salts of sulfonic acid-substituted anthrahydroquinones. As said salts are highly soluble in protic polar solvents such as water and lower aliphatic alcohols, the concentration of hydrogen peroxide i... | 12/03/1996 |
| 5493036 | Fibre-reactive anthraquinone dyes, their preparation and the use thereof The invention relates to fibre-reactive anthraquinone dyes of formula ##STR1## wherein R1, R2, B, U, R and n are as defined in claim 1. The anthraquinone dyes of formula (1) are suitable for dyeing or printing hydroxyl group con... | 02/20/1996 |
| 5480873 | Pharmaceutical compounds Pharmaceutical compounds of the formula ##STR1## in which R1 and R2 are each hydrogen, hydroxyl, halo, C1-4 alkyl, C1-4 alkoxy, acyloxy, --O-glucoside, optionally substituted phenyl or optionally substitute... | 01/02/1996 |
| 5231171 | Reactive dyes having an allylsulfonyl or propargylesulfonyl group Reactive dyes useful for dyeing or printing hydroxyl- or nitrogen-containing substrates have the formula ##STR1## where Rg is a radical of the formula ##STR2## Ar is the radical of a benzene or naphthalene ring, Z1 and Z2 ... | 07/27/1993 |
| 5183501 | Ink compositions for ink jet recording An ink composition for ink jet recording, which contains a water-soluble dye, an organic solvent and water, in which the dye is represented by the formula (1) as shown in the state of free acid: D--(SO2 CH2 CH2 SO3 H... | 02/02/1993 |
| 4543214 | Process for the preparation of bromoanthraquinones A process for the preparation of pure bromoanthraquinones by denitrobrominating corresponding nitroanthraquinones is described. The process comprises treating nitroanthraquinones of the formula I ##STR1## wherein X is hydroxy, mercapto, carboxy or ha... | 09/24/1985 |
| 4391489 | Liquid crystal materials containing pleochroic anthraquinone dyes A material suitable for a guest-host liquid crystal device comprises a solution of a liquid crystal material and a pleochroic dye wherein the pleochroic dye comprises at least one compound having a formula: ##STR1## wherein one of X and Y is OH and t... | 07/05/1983 |
| 4385044 | Treatment of contaminated Stretford solution A side-stream portion of a Stretford Process solution is taken from the main-stream in order to reduce the amount of deleterious side-products in the solution and the ADA values and vanadium values are salvaged from the side-stream by taking up the ADA va... | 05/24/1983 |
| 4355012 | Mixed anthraquinonedisulfonic acids Mixed disulfoanthraquinonemono-, di-, or polycarboxylic acids produced by the direct sulfonation of an anthraquinone of the formula: ##STR1## wherein n is an integer of 1-4 and each R is independently selected from alkyl of 1-4 carbon atoms and chlor... | 10/19/1982 |
| 4226783 | -Chlorination process A process for -chlorination of side chains of electronegatively substituted aromatic compounds with dichlorine monoxide.... | 10/07/1980 |
| 4222947 | Anthrachinone dyestuffs Dyestuffs, which are free from nitro groups and sulphonic acid groups, of the formula wherein F denotes an anthraquinone nucleus which contains at least one auxochromic group in the -position, Z denotes a direct bond or a bridge member, A denotes alkyle... | 09/16/1980 |
| 4167510 | Ester capped alkyleneoxy fugitive tints and method for producing same Improved fugitive tints are provided wherein such tints are characterized as having from 2 to about 300 repeating alkyleneoxy capped units in the molecule and having a dyestuff molecule attached to the alkyleneoxy capped units. The solubility of the tint ... | 09/11/1979 |
| 4124606 | Sulfonation of anthraquinone in sulfur dioxide solvent Sulfonation of anthraquinone by a sulfur trioxide component including SO3 or oleum in a liquid sulfur dioxide solvent. When a mercury catalyst is used to give alpha anthraquinone sulfonate products, most of the mercury is left in the reactor or... | 11/07/1978 |
| 4065478 | Process for the manufacture of ,'-aminonitroanthraquinones A process for the manufacture of ,'-aminonitroanthraquinones, from ,'-dinitroanthraquinones, wherein the ,'-dinitroanthraquinones are reacted with ammonia in dipolar aprotic solvents which are inert to ammonia, th... | 12/27/1977 |
| 4012454 | Iodination process A decarboxylation process for substituting iodine atoms for silver carboxylate radicals which comprises reacting the silver salts of carboxylic acids with iodine under decarboxylation conditions.... | 03/15/1977 |
| 3983145 | Use of alpha-di(lower alkoxy) anthraquinones in the synthesis of Alizarin Saphirols Alpha-dihydroxyanthraquinones used as intermediates in the synthesis of many dyestuffs, such as the Alizarin Saphirols (e.g. Color Constitution No. 63000, 63005, 63010, 63011, 63315 and 63610) can be replaced on an equimolar basis by alpha-di(lower alkoxy... | 09/28/1976 |
| 3975410 | Process for the manufacture of halogen-containing anthraquinoidal compounds, their use and new halogen-containing anthraquinoidal compounds Process for the manufacture of halogen-containing anthraquinoidal compounds being useful for bulk dyeing high molecular organic compounds and having the formula ##SPC1## Wherein A is an anthraquinoidal radical being free from nitro groups, X is --NH-... | 08/17/1976 |
