Ureas, Thioureas, Pseudoureas, Or Pseudothioureas Patents (Class 8/585)
  • Patent number: 4629470
    Abstract: Processes for dyeing, print-dyeing and differentially dyeing smooth-dry cellulose containing fabric are disclosed. Cellulose containing fabric is treated with a solution of crosslinking agent and a reactive additive which can be either polyethylene glycol or choline quaternary. The resultant fabric can then be dyed with a cellulosic dye. Print-dyeing is accomplished by selective application of a choline quaternary to a fabric padded crosslinking agent or by printing with a combination of crosslinking agent and choline quaternary on an untreated cellulosic fabric. These treatments are then followed by curing and dyeing. Differential dyeing is accomplished by first treating separate yarns with different solutions containing crosslinking agent with and without choline quaternary, drying, knitting, curing and dyeing the knitted fabric.
    Type: Grant
    Filed: October 18, 1985
    Date of Patent: December 16, 1986
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventor: Robert J. Harper, Jr.
  • Patent number: 4619668
    Abstract: A cellulosic fabric is treated with a crosslinking agent selected from the group consisting of: an adduct from an amide and glyoxal, an acetal derived from a dialdehyde and an aldehyde other than formaldehyde and an acidic catalyst. The catalyst and crosslinking agent is of sufficient amount and concentration to impregnate the fabric and produce wrinkle-resistance and smooth-drying finishes when dried from about 3-10 minutes at from about 60.degree.-100.degree. C. and then cured from about 1-5 minutes at from about 120.degree.-180.degree. C. The resultant fabric is then dyed.
    Type: Grant
    Filed: September 11, 1985
    Date of Patent: October 28, 1986
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: John G. Frick, Jr., Brian W. Jones, Robbie L. Stone, Michael D. Watson
  • Patent number: 4615708
    Abstract: Cellulosic materials, such as cotton fabrics, can be colored insitu by first treating the fabric with N-phenyldiethanolamine and a crosslinking agent for cellulose, such as dimethylol dihydroxyethyleneurea. After the fabric has been cured it is then colored by treating with sufficient concentrations of nitrous acid to form the colored nitroso derivative of the tertiary aromatic amine. The colors obtained are shades of green and yellow which are determined by: concentration of the N-phenyldiethanolamine; type of crosslinking agent; strength of the nitrous acid, and reaction times.
    Type: Grant
    Filed: October 18, 1985
    Date of Patent: October 7, 1986
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Eugene J. Blanchard, Joseph S. Bruno
  • Patent number: 4602915
    Abstract: A new storage-stable solution of the reactive dyestuff of the formula ##STR1## wherein CuPc=the radical of a Cu phthalocyanine dyestuff,m=1, 2 or 3,n=1, 2 or 3,m+n=3 to 4 andM.sup..sym. =H.sup..sym., an alkali metal cation or an ammonium ion,is provided.The storage-stable solution according to the invention is characterized in that it contains 10-35% by weight of reactive dyestuff (1), 10-30% by weight of solubilizing agent, 0-10% by weight of anionic dispersing agent, 0-7% by weight of inorganic salts, such as Na.sub.2 SO.sub.4, Li.sub.2 SO.sub.4 and the like, and 0.1-3% by weight of buffer (pH 4-7), the remainder to make up to 100% by weight being water.
    Type: Grant
    Filed: January 17, 1985
    Date of Patent: July 29, 1986
    Assignee: Bayer Aktiengesellschaft
    Inventors: Joachim Wolff, Karlheinz Wolf
  • Patent number: 4560747
    Abstract: A process for producing granulates of water-soluble dyes by means of fluidized bed granulation, wherein there is added a granulating auxiliary having a softening point or softening range between 30.degree. and 150.degree. C. and consisting of(a) at least one compound of the formula IA--(CH.sub.2 CH.sub.2 O).sub.n --H (I)in which A is the group R--O-- or ##STR1## wherein R is an aliphatic or alicyclic hydrocarbon radical having 8 to 22 carbon atoms, R' is an aliphatic hydrocarbon radical having 8 to 22 carbon atoms, and n is 10 to 200, preferably 20 to 150, or(b) a mixture of a compound of the formula II ##STR2## in which m is 50 to 500, and x is 3 to 5, with a compound of the formula IIIR.sub.1 --NH--CO--NH--R.sub.1 (III),in which each R.sub.1 independently of the other is hydrogen or methyl, or(c) a mixture of a compound of the formula I with at least one compound of the formula II or III.
    Type: Grant
    Filed: October 20, 1980
    Date of Patent: December 24, 1985
    Assignee: Ciba Geigy Corporation
    Inventors: Beat Bruttel, Hansjorg Schneider, Werner H. Dorfel
  • Patent number: 4500321
    Abstract: A process for the preparation of storage-stable concentrated fluid dye compositions of water-soluble dyes, wherein an aqueous solution or suspension of at least one anionic crude dye is passed over a semi-permeable membrane containing ionic groups and having a pore diameter of 1 to 500 .ANG., to remove salts and synthesis by-products of molecular weights less than 500 and to partially remove water, optionally dried, and mixed with a water-miscible organic solvent and, if desired, further additives, before and/or after passage over the semi-permeable membrane. The fluid dye compositions obtained are particularly suitable for use in spray solutions for dyeing leather, as well as for the dying and printing of textile materials, in particular cellulosic fibres.
    Type: Grant
    Filed: February 22, 1983
    Date of Patent: February 19, 1985
    Assignee: Ciba-Geigy Corporation
    Inventors: Paul Hugelshofer, Beat Bruttel, Heinz Pfenninger, Roger Lacroix
  • Patent number: 4492584
    Abstract: A melamine derivitive resin such as melamine formaldehyde is polymerized, but not significantly cross-linked, within the natural or synthetic cellulosic fibrous structure of a textile fabric of the type having a significant percentage of natural or synthetic cellulosic fibers, wool, or other animal fibers (usually cotton) by either steam curing the resin or by ensuring that the resin polymerizes on the alkaline side as by, for example, using an alkaline or latent alkaline catalyst. The transfer printing step then is effected with the resulting fabric exhibiting good color levels with superior hand characteristics and excellent wash fastness, as well as other physical properties.
    Type: Grant
    Filed: August 19, 1982
    Date of Patent: January 8, 1985
    Assignee: Apollo Chemical Corporation
    Inventor: Evans M. Jenkins
  • Patent number: 4452606
    Abstract: The wet fastness properties of direct or reactive dyeings on cellulosic substrates are improved by aftertreatment with a precondensate or mixture of(A) the product of reacting a polyalkylenepolyamine in free base or salt form with an epihalohydrin or a precursor thereofand (B) and N-methylol derivative of a urea, melamine, guanamine, triazinone, urone, carbamate or acid amidein the presence of(C) a catalyst for the cross-linking of N-methylol compounds of the type (B) above,followed by a heat-curing step.
    Type: Grant
    Filed: May 10, 1982
    Date of Patent: June 5, 1984
    Assignee: Sandoz Ltd.
    Inventors: Joseph van Diest, Salvatore Valenti
  • Patent number: 4399068
    Abstract: Salts of acetoacetylamino-arylsulphonic acids, of the formula ##STR1## wherein R denotes an optionally substituted benzene or naphthalene nucleus,Me denotes a protonated, tertiary, hydrophilizing nitrogen base or the lithium cation andm denotes 1,2 or 3are easily obtained by reacting compounds of the formulaH.sub.2 N--R--(SO.sub.3 H).sub.mwherein R and m have the above mentioned meaning, with diketene in an aqueous or aqueous-organic solvent maintaining a pH>3 during the reaction by adding tertiary, hydrophilizing nitrogen bases or a basic lithium salt.The salts can be obtained as concentrated solutions which are easily reacted with diazotized aromatic amines to concentrated solutions of azo dyestuffs.
    Type: Grant
    Filed: January 18, 1978
    Date of Patent: August 16, 1983
    Assignee: Bayer Aktiengesellschaft
    Inventor: Erich Kramer
  • Patent number: 4351638
    Abstract: Cotton-containing toweling is dyed in a dye bath solution containing a coloring amount of at least one phosphonic acid fiber reactive dye together with sufficient acids such that the fiber reactive dye reacts with and attaches to the cotton of the toweling. The deybath-saturated toweling is passed through a high expression roll until the wet pickup is in the range of about 40-55 percent wpu, and then the toweling is heated to a temperature of at least 200 degrees F. for a time sufficient to fix the dye onto the cotton producing a fully penetrated, evenly dyed toweling. The toweling may be printed in a predetermined pattern with a print paste after passage through a high expression roll and before final heating.
    Type: Grant
    Filed: September 21, 1981
    Date of Patent: September 28, 1982
    Assignee: Burlington Industries, Inc.
    Inventors: James E. Finlayson, III, Joseph P. Holder, L. Earl Holt, Seung Y. Lee
  • Patent number: 4336026
    Abstract: A liquid preparation of an anionic dye of the disazo class, which preparation contains the disazo dye, which in the form of the free acid corresponds to the formula ##STR1## dissolved in a solvent mixture which is miscible with water in any proportion and which consists of N,N,N',N'-tetramethylurea, at least one alkylene glycol ether and water, and alkyl- or alkanolamine in an amount sufficient to bring the pH value of the liquid preparation to 6.5 to 8.5, the dye being in the form of alkyl- or alkanolamine. This novel liquid preparation is a concentrated true solution which is stable in storage over several months at temperatures of between about -10.degree. C. and +60.degree. C., and which is miscible with cold and warm water in any proportion. It is suitable in particular for dyeing and printing paper, including semi-cardboard and cardboard, the dyeing of these materials being possible, for example, in the pulp, or by brushing or immersion.
    Type: Grant
    Filed: January 19, 1981
    Date of Patent: June 22, 1982
    Assignee: Ciba-Geigy Corporation
    Inventor: Roger Lacroix
  • Patent number: 4328220
    Abstract: Non-dusting pulverulent or granulated dye preparations are provided which contain (1) an organic dye, (2) a non-ionic compound having a hydrotropic action and at least one of the components (3) or (4), component (3) being a reaction product of a fatty acid having 8 to 22 carbon atoms and 1 to 2 mols of diethanolamine and component (4) being a compound of the formula ##STR1## in which R is an aliphatic hydrocarbon radical having 8 to 22 carbon atoms or a cycloaliphatic, aromatic or aliphatic-aromatic hydrocarbon radical having 10 to 22 carbon atoms, R.sub.1 is hydrogen or methyl, A is --0-- or ##STR2## X is the acid radical of an inorganic, oxygen-containing acid, the acid radical of a polybasic carboxylic acid or a carboxyalkyl radical and m is a number from 1 to 50, and (5) optionally further customary additives.
    Type: Grant
    Filed: June 13, 1980
    Date of Patent: May 4, 1982
    Assignee: Ciba-Geigy Corporation
    Inventors: Heinz Abel, Beat Bruttel, Arthur Buhler
  • Patent number: 4322415
    Abstract: Stable concentrated liquid preparations of metal complex dyes are provided. These preparations contain (1) a metal complex dye, (2) a non-ionic compound having a hydrotropic action and at least one of components (3) or (4), component (3) being a reaction product of a fatty acid having 8 to 22 carbon atoms and 1 to 2 mols of diethanolamine and component (4) being a compound of the formula ##STR1## in which R is an aliphatic hydrocarbon radical having 8 to 22 carbon atoms or a cycloaliphatic, aromatic or aliphatic-aromatic hydrocarbon radical having 10 to 22 carbon atoms, R.sub.1 is hydrogen or methyl, A is --O-- or ##STR2## X is the acid radical of an inorganic, oxygen-containing acid, the acid radical of a polybasic carboxylic acid or a carboxyalkyl radical and m is a number from 1 to 50, and (5) water, a water-soluble organic solvent having a boiling point of at least 80.degree. C. or a mixture of the two and (6) optionally conventional formulating agents.
    Type: Grant
    Filed: June 13, 1980
    Date of Patent: March 30, 1982
    Assignee: Ciba-Geigy Corporation
    Inventors: Heinz Abel, Paul Hugelshofer, Arthur Buhler
  • Patent number: 4322214
    Abstract: Textile materials such as fiber and cloth can be dyed more satisfactorily with sulfur dyes or sulfurized vat dyes by allowing an organic mercapto compound and/or an organic sulfur compound capable of generating mercapto groups under dyeing conditions to be present in dye baths. Still more improved dyeing results may be obtained by allowing a sulfite salt compound to be further present in such dye baths.
    Type: Grant
    Filed: April 9, 1980
    Date of Patent: March 30, 1982
    Assignee: Asahi Chemical Company Limited
    Inventors: Osamu Manabe, Masayasu Utsunomiya, Morihiro Kamiyama, Michiaki Tsutsui, Masayuki Matsumoto
  • Patent number: 4304568
    Abstract: There is disclosed a method for minimizing ozone fading in dyed polyamides by treating the dyed polyamide with a substituted piperidine thiourea of the formula ##STR1## where R is a lower alkyl radical having 1-5 carbon atoms or phenyl. The treated dyed polyamides, preferably in fiber form, display minimize ozone fade without a reduction in light stability.
    Type: Grant
    Filed: May 19, 1980
    Date of Patent: December 8, 1981
    Assignee: Akzona Incorporated
    Inventors: David A. Johnson, Robert L. Lilly
  • Patent number: 4300902
    Abstract: Process for the coloration of cellulose textile materials which comprises applying a dyestuff containing one or more s-triazinyl groups bearing a quaternary nitrogen substituent, or the precursors of such a dyestuff, in the absence of an acid-binding agent and heating the treated textile material to 150.degree. C. or higher to fix the dyestuff to the cellulose.Improved coloration is often achieved by applying urea or dicyandiamide with the dyestuff.The process is particularly valuable for the coloration of cellulose in polyester/cellulose unions when a disperse dye may be applied simultaneously with less problems than encountered with conventional alkali fixed reactive dyes.
    Type: Grant
    Filed: June 5, 1980
    Date of Patent: November 17, 1981
    Assignee: Imperial Chemical Industries Limited
    Inventor: Herbert G. Connor
  • Patent number: 4278436
    Abstract: Process for dyeing and printing cellulose fibre materials with reactive dyestuffs having a halogen leaving group or sulphonyl leaving group on a heterocyclic radical, characterized in that the process is carried out in the presence of a cyanamide or an unsaturated amide in a weakly acid to neutral medium.
    Type: Grant
    Filed: March 6, 1979
    Date of Patent: July 14, 1981
    Assignee: Bayer Aktiengesellschaft
    Inventors: Werner Marschner, Heinz Minwegen
  • Patent number: 4219332
    Abstract: A process for dyeing wool or wool/synthetic blends with 1:1 metal complex dyes or acid metal-free wool dyes from a strongly acid aqueous bath, which comprises dyeing said material in the presence of(a) a quaternization product of a polyalkylene oxide adduct of a fatty amine containing at least 16 carbon atoms and 15 to 100 moles of alkylene oxide, and(b) a free or etherified N-methylolurea or N-methylolmelamine.
    Type: Grant
    Filed: September 29, 1978
    Date of Patent: August 26, 1980
    Assignee: Ciba-Geigy Corporation
    Inventors: Heinz Abel, Charles Soiron