U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Bizarre Patents

Patent No. 5996127

Wearable Device For Feeding and Observing Birds and Other Flying Animals

A device for feeding and observing flying animals comprising a hat, a support mounted on the hat and extending outward from the hat, and a feeder mounted on the support.

Newsletter  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.

 

Class 162/162 - Coloring agent


Subclass of Class 162 - Paper making and fiber liberation
Definition: Processes and products including the addition to the fibers
No. of patents: 213
Last issue date: 01/03/2012


          6  
NumberTitleIssue Date
4023924Concentrated aqueous dye compositions containing a low molecular weight amide and their use for dyeing paper
Concentrated, liquid preparations of metal-free direct azo dyes which contain in each instance 1 part by weight of dye, 1 to 8 parts by weight of water, and 0.5 to 5 or preferably 0.5 to 2 parts by weight of an amide are useful for dyeing paper in the sto...
05/17/1977
40240714,4'-Bis-(s-triazin-6-yl-amino)-stilbene-2,2'-disulphonic acid
The 4,4'-bis-[2",4"-bis-(diisopropanolamino)-s-triazin-6"-yl-amino]-stilbene-2 ,2'-disulphonic acid, its manufacture as well as its use as optical brightener for natural or synthetic polyamides and especially for paper is disclosed....
05/17/1977
4022709Phosphorescent materials
Phosphorescent materials and solutions suitable for their preparation, the solutions comprising a phosphorescence activator and a soluble condensation product capable of further reaction to form an insoluble condensation product, the latter being one that...
05/10/1977
4014870Stilbene compounds
New stilbene compounds, a process for their preparation as well as a process for optically brightening organic materials on using said stilbene compounds are disclosed....
03/29/1977
4002424Solution of isomer mixture of naphthylazophenylazonaphthyl disulfonate dye
Solution of a mixture of isomers of naphthylazophenylazonaphthyl dye containing two sulfonate substituents, the solution comprising said dye, water, triethanolamine, lithium base and urea. The dyes have good solubility and substantivity and are useful amo...
01/11/1977
4000158Phthalocyanine compounds
Disclosed are phthalocyanine dyes of formula ##STR1## IN WHICH Me signifies copper or nickel Pc signifies a phthalocyanine radical, The R1 's, independently, signify a linear, branched or cyclic aliphatic radical, unsubstituted or substituted b...
12/28/1976
3993645Stilbene optical brighteners and compositions brightened therewith
Benzofurans, benzothiophenes, indoles, naphthofurans and benzofuranobenzofurans which are substituted by 4-vinylphenyl groups wherein the 2-position of the vinyl is substituted by a monovalent aromatic radical having one to three aromatic rings are optica...
11/23/1976
3956283Bis-(triazinylamino)-stillene derivatives
Disclosed are compounds of formula I, ##SPC1## in which R1 signifies hydrogen, fluorine, bromine, chlorine, C1-6 alkyl, C1-6 alkoxy or --SO3 M, R2 signifies cyano or --CONR3 R4, in wh...
05/11/1976
3954740Bis-s-triazinylamino-stilbene-2,2'-disulphonic acids, their manufacture and their use as optical brighteners
The present invention provides new bis-s-triazinylamino-stilbene-2,2'-disulphonic acids of the formula ##SPC1## And the alkali metal, alkaline earth metal, earth metal, ammonium or amine salt thereof. The new compounds are valuable optical brighteners, es...
05/04/1976
3954392Copper phthalocyanine N-Di-N-butylaminoalkyl sulfonamide, quaternized solutions of the quaternary compound, and paper dyeing therewith
A new dye having a turquoise blue color and high water solubility suitable for dyeing cellulose materials such as paper and textile fibers such as cotton, polyamides and polyacrylonitrile having the formula: ##EQU1## WHEREIN P IS 2 OR 3, M IS 1 THROU...
05/04/1976
3953282Process for manufacturing paper-like synthetic sheet
A polyolefin micro-flake aggregation which is easily micro-flakable from the aggregation into a plurality of irregularly shaped micro-flakes suitable for producing synthetic paper, is manufactured from a solution of 5 - 40% by weight of polyolefin such as...
04/27/1976
3941778Bis(triazinylamino) stilbene compounds
New stilbene derivatives of formula: ##SPC1## In which R1 signifies a hydrogen or halogen atom, or a lower alkyl group; R2 signifies a hydrogen atom; a cycloalkyl group which is unsubstituted or substituted by one or more lower alkyl grou...
03/02/1976
3932301Stilbene optical brighteners and compositions brightened therewith
Benzofurans, benzothiophenes, indoles, naphthofurans and benzofuranobenzofurans which are substituted by 4-vinyl-phenyl groups wherein the 2-position of the vinyl is substituted by a monovalent aromatic radical having one to three aromatic rings are optic...
01/13/1976
          6  
 
Sign InRegister
Username  
Password   
forgot password?