With Aminoplast Condensate Or Aminoplast Condensate-former Patents (Class 8/182)
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Patent number: 11091606Abstract: Fibrous structures, for example sanitary tissue products, containing a plurality of filaments that employ one or more filament-forming materials, such as one or more hydroxyl polymers, and one or more hueing agents, present within the filaments such that the fibrous structures exhibit a Whiteness Index of greater than 72 as measured according to the Whiteness Index Test Method described herein.Type: GrantFiled: April 8, 2014Date of Patent: August 17, 2021Assignee: The Procter & Gamble CompanyInventors: Gregory Charles Gordon, Jacqueline Besinaiz Thomas, Elaine Marie Suszcynsky-Meister, Mark Robert Sivik, Gregory Scot Miracle
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Patent number: 6908976Abstract: A solution for forming a graft substrate containing a graft initiator, a catalyst for activating the graft initiator, a polymerizable silicon softener, and at least one additional prepolymer, each of the softener and the prepolymer which includes a functional group for reaction with an activated site on the substrate for grafting thereto and water. The treated fiber exhibits excellent crockfastness, color fastness, and abrasion resistance, strength, and has a soft hand.Type: GrantFiled: October 2, 2003Date of Patent: June 21, 2005Assignee: Healthtex Apparel Corp.Inventors: Mohan L. Sanduja, Carl Horowitz, Izabella Zilbert, Paul Thottathil, Gerald L. Williamson
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Patent number: 6645256Abstract: A solution for forming a graft substrate containing a graft initiator, a catalyst for activating the graft initiator, a polymerizable silicon softener, and at least one additional prepolymer, each of the softener and the prepolymer which includes a functional group for reaction with an activated site on the substrate for grafting thereto and water. The treated fiber exhibits excellent crockfastness, color fastness, and abrasion resistance, and has a soft hand.Type: GrantFiled: April 4, 2001Date of Patent: November 11, 2003Assignee: Healthtex Apparel Corp.Inventors: Mohan L. Sanduja, Carl Horowitz, Izabella Zilbert, Paul Thottathil, Gerald L. Williamson
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Patent number: 6645255Abstract: A solution for forming a graft substrate containing a graft initiator, a catalyst for activating the graft initiator, a polymerizable silicon softener, and at least one additional prepolymer, each of the softener and the prepolymer which includes a functional group for reaction with an activated site on the substrate for grafting thereto and water. The treated fiber exhibits excellent crockfastness, color fastness, and abrasion resistance, strength, and has a soft hand.Type: GrantFiled: April 4, 2001Date of Patent: November 11, 2003Assignee: Healthtex Apparel Corp.Inventors: Mohan L. Sanduja, Carl Horowitz, Izabella Zilbert, Paul Thottathil, Gerald L. Williamson
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Patent number: 6638319Abstract: A solution for forming a graft substrate containing a graft initiator, a catalyst for activating the graft initiator, a polymerizable silicon softener, and at least one additional prepolymer, each of the softener and the prepolymer which includes a functional group for reaction with an activated site on the substrate for grafting thereto and water. The treated fiber exhibits excellent crockfastness, color fastness, and abrasion resistance, and has a soft hand.Type: GrantFiled: April 4, 2001Date of Patent: October 28, 2003Assignee: Healthtex Apparel Corp.Inventors: Mohan L. Sanduja, Carl Horowitz, Izabella Zilbert, Paul Thottathil, Gerald L. Williamson
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Patent number: 6123739Abstract: A method for imparting wrinkle free properties to cotton or cotton blend fabrics. These wrinkle free properties are achieved through the use of a combination of a DMDHEU based reactant at high levels with a catalyst at a low level.Type: GrantFiled: June 19, 1995Date of Patent: September 26, 2000Assignee: Westpoint Stevens Inc.Inventors: George A. Andrews, Robert W. Bugg, Jr., B. Jay Bogan
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Patent number: 6102973Abstract: A method for imparting durable press and softness characteristics to garments. The initial step of the process is to start with a garment in which the pH is between about 6 and 7. The garments are immersed in a mixture of water, a non-ionic wetter, a glyoxal resin and aminofunctional silicone, and a cationic HDPE in specific amounts, depending upon the type of fabric of which the garments are made. The mixture is extracted from the garments to a specific extent. After mixture extraction, the garments are pressed and baked.Type: GrantFiled: August 23, 1995Date of Patent: August 15, 2000Inventor: Rodolfo A. Morales
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Patent number: 5942006Abstract: A process for the flame-retardant treatment of a cellulosic fabric by impregnating a fabric with an aqueous solution of a tetrakis (hydroxyorgano) phosphonium (THP) and then at least partially drying it. The partially dried impregnated fabric is passed at a speed of 30 to 100 m/minute once through a chamber containing ammonia for a single cure. Both the moisture contained in the fabric and water produced as a by-product of curing are volatilized and condensed on an interior wall of the chamber and flow down the walls to a drain for removal of the condensed water from the apparatus. The process further includes measuring the rate of ammonia in the gas fed into the chamber, determining the ammonia content of the gas and measuring the temperature within the chamber, for maintaining the initial concentration of ammonia in the gas at 70% to 90% by volume and for maintaining the ratio of ammonia input to the THP composition in the range of at least 1.Type: GrantFiled: July 31, 1997Date of Patent: August 24, 1999Assignee: Albright & Wilson UK LimitedInventor: Robert Cole
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Patent number: 5910622Abstract: Method for treating fibrous cellulosic materials using an aqueous cationic treating solution containing a cyclic polyhydroxy compound and choline chloride, by which dye uptake of the material, and the environmental effects of the subsequent dyeing process are improved.Type: GrantFiled: June 2, 1997Date of Patent: June 8, 1999Assignee: DCV, Inc.Inventor: George L. Brodmann
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Patent number: 5879410Abstract: A process for resin finishing textile containing cellulosic fiber comprises the steps of using a resin finishing agent chiefly containing a cellulose-reactive N-methylol compound having two or more functional groups and a reaction catalyst, mainly reacting only one functional group of the cellulose-reactive N-methylol compound with cellulose, water washing, again imparting reaction catalyst, drying, garment making, and heat treating. The process eliminates the conventional postcuring method drawbacks of loss of color fastness and discoloration owing to dye decomposition and formaldehyde increase by unreacted resin and residual reaction catalyst during long storage before heat treatment, and simultaneously achieves high crease-resistant property, shrink resistance, good feeling, excellent pleating property, and anti-puckering property.Type: GrantFiled: December 12, 1997Date of Patent: March 9, 1999Assignee: Nisshinbo Industries, Inc.Inventors: Yuichi Yanai, Masayoshi Oba, Yasushi Takagi, Tadashi Isogai
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Patent number: 5873909Abstract: The application of a treating solution containing polyhydroxy compound and choline chloride to a fibrous cellulosic material is made more uniform and reproducible by including in the treating solution a colorizing amount of a fugitive tint, by which the uniformity of the application can be observed and corrected by appropriate changes to the operating variables.Type: GrantFiled: April 7, 1998Date of Patent: February 23, 1999Assignee: Ducoa, L.P.Inventors: George L. Brodmann, John S. Thackrah
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Patent number: 5759210Abstract: The fibrillation tendency of lyocell fabrics, and the degree of fibrillation of fibrillated lyocell fabrics, can be reduced by treating such fabrics with a cross-linking agent in the presence of an acid catalyst. Good results may be obtained when the ratio by weight of the catalyst to the optional cross-linking agent is at least about 0.5:1. Good results may be obtained when the amount of cross-linking agent fixed on the fabric is in the range 0.5 to 1.5 percent on weight of fabric.Type: GrantFiled: September 27, 1996Date of Patent: June 2, 1998Assignee: Courtaulds Fibres (Holdings) LimitedInventors: Christopher David Potter, James Martin Taylor
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Patent number: 5755828Abstract: Crosslinked cellulose fibers having free pendant carboxylic acid groups are disclosed. The fibers include a polycarboxylic acid covalently coupled to the fibers, and are crosslinked with a crosslinking agent having a cure temperature lower than the cure temperature of the polycarboxylic acid. Methods for producing the fibers and for producing a fibrous sheet incorporating the fibers are also disclosed.Type: GrantFiled: December 18, 1996Date of Patent: May 26, 1998Assignee: Weyerhaeuser CompanyInventor: John A. Westland
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Patent number: 5614591Abstract: Durable press properties are imparted to a fabric by applying to the fabric an aqueous durable press treatment composition comprising a reactive modified ethylene urea resin, such as dimethylol dihydroxy ethylene urea (DMDHEU), a crosslinking acrylic copolymer derived from butyl acrylate and acrylonitrile and having a glass transition temperature (T.sub.g) of -30.degree. C. or lower, and a catalyst. The fabric is dried to a residual moisture content of 10 to 20 percent by weight, is pressed to remove unwanted wrinkles, and is heated at a temperature of 88.degree. to 175.degree. C. for up to fifteen minutes to cure and crosslink the durable press treatment composition and impart durable press properties to the fabric. The process can be applied either to fabrics prior to fabrication into garments, or as a garment durable press process imparting durable press properties to fabricated garments.Type: GrantFiled: December 15, 1994Date of Patent: March 25, 1997Assignee: The Virkler CompanyInventors: Brent D. Basinger, R. Keith Zimmerman
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Patent number: 5358535Abstract: Use as formaldehyde collectors of the products of formula ##STR1## in which R represents an acetoacetyl or 3,5-dioxo hexanoyl group, R.sub.1 represents a hydrogen atom or a methyl radical, m is equal to 1, 2, 3 or 4 and n is either equal to 1 when R.sub.1 represents a methyl radical or equal to 1, 2 or 3 when R.sub.1 represents a hydrogen atom, and finishing process for fabrics based on cellulose fibers using an aminoplastic resin containing formaldehyde in the free or combined state, using a product of formula (I) as the formaldehyde collector.Type: GrantFiled: May 7, 1993Date of Patent: October 25, 1994Assignee: Societe Francaise HoechstInventors: Wilhelm Didier, Antonio Gelabert
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Patent number: 5326378Abstract: Tris(2-acetoacetoxy ethyl)-amine, and its hydrosoluble mineral or organic acid salts, preparation process, use as formaldehyde collectors, and finishing process for fabrics based on cellulose fibres.Type: GrantFiled: June 24, 1993Date of Patent: July 5, 1994Assignee: Societe Francaise HoechstInventors: Didier Wilhelm, Antonio Gelabert
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Patent number: 5252387Abstract: An insect repellent fabric has a coating containing permethrin and a plasticizer, and a barrier covers the coating to protect the permethrin from degradation by ultraviolet light and oxygen. The barrier may be an acrylic coating or film, aluminum foil, a urethane coating or film, or an outer fabric barrier such as an awning or a tent fly.Type: GrantFiled: February 1, 1993Date of Patent: October 12, 1993Assignee: Graniteville CompanyInventors: Richard D. Samson, James M. McKinney, John Russell
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Patent number: 5198287Abstract: A tent fabric with a water repellent and flame retardant coating that includes the insecticide permethrin with an effective life of more than six months.Type: GrantFiled: April 1, 1991Date of Patent: March 30, 1993Assignee: Graniteville CompanyInventors: Richard D. Samson, James M. McKinney, John Russell
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Patent number: 5160503Abstract: A composition for a formaldehyde scavenger is provided which consists of a water-soluble blend of a substituted or unsubstituted polyhydric alcohol and an active methylene compound selected from the group consisting of dialkyl malonate and alkylacetoacetate.Type: GrantFiled: November 13, 1989Date of Patent: November 3, 1992Assignee: West Point PepperellInventor: Richard D. Smith
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Patent number: 5066307Abstract: Polyhydroxyalkyl melamine used in the processing of textiles with amino resins to reduce formaldehyde emissions and improve textile "hand".Type: GrantFiled: March 18, 1991Date of Patent: November 19, 1991Assignee: American Cyanamid CompanyInventors: Robert G. Lees, Edward B. Lawler
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Patent number: 4911700Abstract: Adsorbent retentive pulp is described which is capable of retaining good adsorbency even after having been highly compressed. The pulp is produced by subjecting a microfibrillated pulp slurry to pore generation with pore generating particles and to cross-linking with a cross-linking agent.Type: GrantFiled: December 18, 1986Date of Patent: March 27, 1990Assignee: McNeil-PPC, Inc.Inventors: Kambiz B. Makoui, Pronoy K. Chatterjee
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Patent number: 4880433Abstract: There is disclosed a process for aftertreating cellulose and cellulosic materials printed with reactive dyes by treating said printed material with an aqueous liquor that contains at least one cationic assistant, at least one amphoteric and/or at least one cationic fluorescent whitening agent. The prints so obtained have very good washfastness, especially very good wetfastness, and the required degree of whiteness.Type: GrantFiled: January 27, 1987Date of Patent: November 14, 1989Assignee: Ciba-Geigy CorporationInventors: Wolfgang Sutterlin, Raymond Defago
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Patent number: 4618512Abstract: Synthetic-cellulosic blended fabric is padded with a solution of nitrogen rich N-methylol crosslinking agent, acid catalyst, antimony oxide and a halogen containing alcohol; dried at about 140.degree.-190.degree. F. and then cured at about 250.degree.-400.degree. F. for sufficient time to impart smooth-dry and flame retardant properties to the fabric. Aqueous polyethylene or silicone emulsion softeners can be added to the padding solution if desired. Dibromoneopentyl glycol makes an exemplary halogen containing alcohol. The process can be varied to first pad with antimony oxide, dry, and then repad with a solution of: nitrogen rich N-methylol crosslinking agent, acid catalyst, and a halogen containing alcohol, dry again and cure, at the above specified temperatures.Type: GrantFiled: June 28, 1985Date of Patent: October 21, 1986Assignee: The United States of America as represented by the Secretary of AgricultureInventor: Robert J. Harper, Jr.
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Patent number: 4615707Abstract: A process for improving the fastness properties of a sulphur dyestuff on a substrate comprising hydroxy group-containing fibres by applying to the dyed or printed substrate the reaction product (R) of(A) the product of reacting a mono- or polyfunctional primary or secondary amine with cyanamide, dicyanodiamide, guanidine or bi-guanidine; said product containing reactive hydrogen atoms bound to nitrogen, and(B) an N-methylol derivative of a urea, melamine, guanamine, triazinone, urone, carbamate or acid amidein the presence of (C) a catalyst for the crosslinking of N-methylol compounds of the type (B) above, and subsequently carrying out a heat-curing step.These compounds are useful for the aftertreatment of textile material.Type: GrantFiled: September 30, 1985Date of Patent: October 7, 1986Assignee: Sandoz Ltd.Inventor: Tibor Robinson
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Patent number: 4536422Abstract: Fabric is padded with a solution of nitrogen rich N-methylol crosslinking agent, acid catalyst, antimony oxide and a halogen containing alcohol; dried at about 140.degree.-190.degree. F. and then cured at about 250.degree.-400.degree. F. for sufficient time to impart smooth-dry and flame retardant properties to said fabric. Aqueous polyethylene or silicone emulsion softeners can be added to the padding solution if desired. Glycol, polyol and dibromoneophentyl glycol make exemplary halogen containing alcohols. The process can also be varied to first pad with antimony oxide, dry, and then repad with a solution of: nitrogen rich N-methylol crosslinking agent, acid catalyst, and a halogen containing alcohol, dry again and cure, at the temperatures specified supra.Type: GrantFiled: March 6, 1984Date of Patent: August 20, 1985Assignee: The United States of America as represented by the Secretary of AgricultureInventor: Robert J. Harper, Jr.
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Patent number: 4524093Abstract: An improved polymeric latex coating composition, which substantially comprises an aqueous emulsion of alkyl acrylate monomers; copolymerized with acrylonitrile, itaconic acid, and N-methylol acrylamide; and containing a glyoxal curing resin and an acid catalyst, substantially reduces the evolution of formaldehyde and exhibits good durability.Type: GrantFiled: April 30, 1984Date of Patent: June 18, 1985Assignee: The B. F. Goodrich CompanyInventor: William E. Devry
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Patent number: 4447241Abstract: The level of released formaldehyde in a durable press treated fabric is significantly reduced or eliminated altogether by an oxidative aftertreatment process in which the fabric, after treatment with a formaldehyde-based durable press finishing agent and curing to impart durable press properties, is contacted with an oxidizing agent to destroy formaldehyde-releasing moieties present in the fabric. Preferably, the treatment of the durable press fabric with the oxidizing agent is carried out by impregnating the fabric with a solution containing the oxidizing agent and then providing the fabric a residence time in contact with the oxidizing agent to allow for reaction of the oxidizing agent with the formaldehyde-releasing moieties.Type: GrantFiled: April 12, 1982Date of Patent: May 8, 1984Assignee: Springs Industries, Inc.Inventors: James E. Hendrix, George L. Payet
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Patent number: 4431699Abstract: A composition adapted to treating textiles and non-woven cellulosic products comprising a mixture of a cross-linking agent and a nitroalkanol. A method of reducing the residual formaldehyde content of the wrinkle-resistant fabric and a wrinkle-resistant fabric per se comprising the use of the claimed composition.Type: GrantFiled: January 4, 1982Date of Patent: February 14, 1984Assignee: Angus Chemical CompanyInventor: Jerry H. Hunsucker
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Patent number: 4425131Abstract: The method of pretreating pile fabrics with resin at relatively low percentage levels in order to stabilize the appearance (pile shrinkage and distortion) of the pile as affected by a subsequent treatment with liquid ammonia.Type: GrantFiled: July 15, 1983Date of Patent: January 10, 1984Assignee: Cluett, Peabody & Co., Inc.Inventors: Harry A. Webb, Jackson Lawrence
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Patent number: 4421880Abstract: A composition comprising a mixture of a curable ureaaldehyde resin or other crosslinking agent and a nitroalkanol and having particular utility for treating textiles and non-woven cellulose products to provide permanent press and wrinkle-resistant characteristics.Type: GrantFiled: July 21, 1980Date of Patent: December 20, 1983Assignee: International Minerals & Chemical Corp.Inventors: Jerry H. Hunsucker, Milton E. Woods
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Patent number: 4396391Abstract: The products of the reaction of dimethyloldihydroxyethylene urea (DMDHEU) or an alkylated DMDHEU with a polyol impart permanent press properties to a textile fabric and contain only a small amount of free formaldehyde.Type: GrantFiled: June 30, 1982Date of Patent: August 2, 1983Assignee: Sun Chemical CorporationInventor: Bernard F. North
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Patent number: 4292036Abstract: Flame retardance is imparted to textile materials by impregnating them with a flame retardant composition comprising(a) at least one compound represented by the formula ##STR1## wherein R.sup.1 and R.sup.2 are each independently selected from the group consisting of aryl, arylalkyl, alkylaryl, alkenyl and alkyl having from 1 to about 6 carbon atoms and ##STR2## R.sup.3 represents an alkylene group having from 1 to about 5 carbon atoms, and R.sup.4 and R.sup.5 are each independently selected from the group consisting of hydrogen, ##STR3## wherein R.sup.6 represents an alkyl group having from 1 to about 4 carbon atoms; provided that not all of said R.sup.4 's and R.sup.5 's are --CH.sub.3 at the same time:(b) an aminoplast; and(c) an acid catalyst; and heating the impregnated textile material sufficiently to cure said flame retardant composition.Type: GrantFiled: May 5, 1980Date of Patent: September 29, 1981Assignee: Stauffer Chemical CompanyInventors: Edward N. Walsh, Thomas A. Hardy
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Patent number: 4280812Abstract: Smolder resistance is imparted to cotton and cotton-containing fabrics by applying a certain boron-nitrogen-phosphorus system to the fabric, employing conventional equipment. An inorganic boron compound is placed in solution with a phosphorus-containing compound, then a nitrogen-containing compound is added. The aqueous mixture is applied using conventional textile equipment, dried, and cured by standard methods.Type: GrantFiled: March 21, 1980Date of Patent: July 28, 1981Assignee: The United States of America as represented by the Secretary of AgricultureInventors: Darrell J. Donaldson, Robert J. Harper, Jr.
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Patent number: 4224030Abstract: An aluminum acetate salt solution containing sodium and chloride ions is prepared by reaction of aqueous aluminum chloride and sodium acetate. It is suitable for use as a catalyst in the treatment of cellulosic-containing textiles with formaldehyde or a formaldehyde-amide adduct crosslinking agent to produce durable press properties in the finished material. There is no discoloration in the thus-treated fabric which also exhibits greater strength than is normally present in fabric treated to the same level of wrinkle resistance with an aluminum salt catalyst.Type: GrantFiled: January 5, 1979Date of Patent: September 23, 1980Assignee: The United States of America as represented by the Secretary of AgricultureInventors: Robert M. Reinhardt, Russell M. H. Kullman
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Patent number: 4208173Abstract: Foamable fabric treatment compositions are disclosed which are composed of a fabric finishing agent and a foam stabilizer, which compositions are capable of forming a foam having a blow ratio in the range from about 2:1 to 20:1 and a foam density range from about 0.5 gm/cc to 0.05 gm/cc. Methods for preparing and using the foamable compositions are disclosed. Included in the composition is up to about 10 percent of foam stabilizer.Type: GrantFiled: July 27, 1978Date of Patent: June 17, 1980Assignee: United Merchants and Manufacturers, Inc.Inventors: Razmic S. Gregorian, Chettoor G. Namboodri
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Patent number: 4196260Abstract: A process is provided for flameproofing cellulosics in which an aqueous solution is applied thereto which contains(A) the phosphorinane of the formula ##STR1## (B) an aminoplast precondensate, e.g. a methylolmelamine, and, optionally, (C) a latent acid catalyst, e.g. 2-amino-2-methyl-1-propanolchloride.The cellulosics, e.g. textiles containing natural or regenerated cellulose, are then dried up to 100.degree. C. and subjected to a heat treatment above 100.degree. C., e.g. at 130.degree. to 200.degree. C.Type: GrantFiled: February 28, 1978Date of Patent: April 1, 1980Assignee: Ciba-Geigy CorporationInventor: Hermann Nachbur
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Patent number: 4180382Abstract: An improvement in the process of preparing wrinkle resistant textile fabrics containing cellulosic fiber wherein said fabrics are impregnated with an N-methylol durable press resin and cured. The improvement comprises adding to the durable press resin an oxazolidine or mixture of oxazolidines having the general formula ##STR1## wherein R is selected from the group consisting of H, methyl, ethyl, hydroxymethyl and hydroxyethyl.Type: GrantFiled: July 1, 1977Date of Patent: December 25, 1979Assignee: International Minerals & Chemical Corp.Inventor: Jerry H. Hunsucker
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Patent number: 4127382Abstract: A process for scavenging free formaldehyde from cellulosic-containing articles, such as textile materials, which process comprises contacting the cellulosic-containing textile material containing free formaldehyde with a formaldehyde scavenger which comprises a heterocyclic compound free of carbonyl groups, and containing an NH group, with the ring made up of nitrogen or carbon atoms, the ring being unsaturated or, when fused to a phenyl group, being unsaturated or saturated, and the NH group bonded to a carbon or nitrogen atom which is directly bonded by a double bond to a carbon or nitrogen atom.Type: GrantFiled: April 21, 1977Date of Patent: November 28, 1978Inventor: Ronald S. Perry
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Patent number: 4118526Abstract: Foamable fabric treatment compositions are disclosed which are composed of a fabric finishing agent and a foam stabilizer, which compositions are capable of forming a foam having a blow ratio in the range from about 2:1 to 20:1 and a foam density range from about 0.5 gm/cc to 0.05 gm/cc. Methods for preparing and using the foamable compositions are disclosed.Type: GrantFiled: June 6, 1975Date of Patent: October 3, 1978Assignee: United Merchants and Manufacturers, Inc.Inventors: Razmic S. Gregorian, Chettoor G. Namboodri
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Patent number: 4105403Abstract: To the surface of knitted cotton fabrics is applied from 20 to 90% wet add-on of crosslinking agent in a novel geometric pattern by any of several techniques including kiss-roll padding, printing, or transferring the solution of crosslinking agent from impregnated material to the surface of the knitted fabric, followed by drying and curing the moist textile at elevated temperatures, and finally by washing the cured fabric to effect differential shrinkage of the fabric in the applied design, which novel shrinkage in the fabric is fixed through the life of the fabric and is stable through subsequent launderings.Type: GrantFiled: May 7, 1976Date of Patent: August 8, 1978Assignee: The United States of America as represented by the Secretary of AgricultureInventors: Bethlehem K. Andrews, Robert J. Harper, Jr., Norton A. Cashen
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Patent number: 4080160Abstract: The formation of undesired difficulty removable film on dyeing equipment when dyeing with aqueous pigment dispersions containing cross-linking resin, is reduced by incorporating in the dispersions a mono-sulphated oleic acid amide.Type: GrantFiled: June 10, 1976Date of Patent: March 21, 1978Assignee: Cassella Farbwerke Mainkur AktiengesellschaftInventors: Georg Cermak, Gerhard Pfeiffer
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Patent number: 4076870Abstract: A process for modifying a fibrous product containing cellulosic fibers, which comprises impregnating said fibrous product with a treating liquor containing a chemical textile finishing agent, and then heat-treating the impregnated fabric in the presence of an acid catalyst which comprises a fluorocarboxylic acid of the formulaC.sub.n F.sub.p H.sub.q COOHwherein n is an integer of 1 to 5, p is 2 to 10, and q is 0 or 1, with the proviso that the sum of p and q equals 2n + 1. The fibrous product thus treated has markedly improved shrinkage resistance, dry crease resistance, wet crease resistance and wash and wear properties while retaining mechanical strength characteristics.Type: GrantFiled: September 27, 1976Date of Patent: February 28, 1978Assignee: Daido-Maruta Finishing Co. Ltd.Inventor: Kazuhide Yamamoto
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Patent number: 4073617Abstract: In the process for rendering textile materials, especially cellulose-containing tent fabrics, fire-resistant by condensing dicyandiamide with formaldehyde and phosphoric acid, followed by dilution with water and application to the fabric, it has been found that the need to dilute the condensate and apply it promptly after formation can be avoided provided additional phosphoric acid is added from about 0 to 8 hours prior to the dilution. Without such additional phosphoric acid, if the dilution is later effected an insoluble precipitate will form. Thus, the invention permits production and shipping of a clear solution which, to be used, need only be diluted first with additional phosphoric acid and then with water. The initial condensation is preferably effected with about 0.9-3 moles of formaldehyde per mole of dicyandiamide in aqueous solution at a pH of about 8 to 13 and thereafter about 0.06-0.6 mole of phosphoric acid per mole of dicyandiamide and at least about 0.Type: GrantFiled: April 26, 1976Date of Patent: February 14, 1978Inventors: Robert B. Le Blanc, Destin A. Le Blanc
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Patent number: 4032992Abstract: The method of treating a textile fabric comprising cellulosic fibers to produce a modified fabric intermediate from which permanently shaped wearing apparel having an improved dry crease recovery can be made, comprising the steps of: (1) impregnating the material with a cellulose cross-linking reagent selected from the groups consisting of: (a) reaction products of formaldehyde with carboxamides wherein said reaction products contain 2 or 3 N-methylol groups and methyl ethers thereof; (b) compounds having the following generic formula:R.sub.1 OCH.sub.2 CH.sub.2 SO.sub.2 (QSO.sub.2).sub.n CH.sub.2 CH.sub.2 OR.sub.2where R.sub.1 and R.sub.Type: GrantFiled: October 17, 1969Date of Patent: July 5, 1977Assignee: J. P. Stevens & Co., Inc.Inventors: Ildo Emil Pensa, Robert Otto Rau
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Patent number: 3989457Abstract: A process is described for obtaining finishing effects on textile material consisting, at least partially, of cellulose fibers, without seriously reducing the tensile strength, tearing strength or wearing strength of the fibers. A finishing agent, capable of cross-linking with the hydroxy groups of the cellulose fibers, in a solution or emulsion containing a mixture of water and at least one organic solvent, such as low aliphatic ketones, aliphatic chlorinated hydrocarbons or low aliphatic esters, is applied to the textile material. The stability of the mixture is controlled by a salting-in or salting-out effect so as to induce a phase separation between aqueous and solvent phase, this effect being induced by the use of neutral salts, acid salts, potentially acid salts, organic acids, synthetic resins or reactants. The finishing agent is concentrated in the aqueous phase in the interior of the individual fibers while the surface zones retain the good surface properties of the starting material.Type: GrantFiled: March 17, 1975Date of Patent: November 2, 1976Assignee: Heberlein & Co. AGInventor: Walter Marte
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Patent number: 3957431Abstract: Process for the easy-care finishing of cellulosics involving low formaldehyde release, wherein the cellulosics, after having been impregnated with a solution of aminoplast-forming substances and dried, are sprayed with a solution of urea.Type: GrantFiled: March 28, 1975Date of Patent: May 18, 1976Assignee: BASF AktiengesellschaftInventors: Panemangalore S. Pai, Harro Petersen, Friedrich Klippel
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Patent number: 3948600Abstract: In mild cure finishing, strong catalysts are required because of the modest curing conditions employed in the process. Suitable catalysts for mild cure finishing include strong inorganic acids, strong organic acids, active inorganic complexes, salt/acid combinations, and salts that are strong Lewis acids (i.e, certain metal salts). Ammonium salts of inorganic acids, although often used in other types of treatments for producing wrinkle resistant textiles, are not satisfactory catalysts for mild cure finishing. Unexpectedly and surprisingly, it has been discovered that ammonium salts of certain, but not all, sulfonic acids can serve as effective catalysts for mild cure finishing of cellulose-containing fabrics to produce wrinkle resistance and durable press properties. Among ammonium sulfonates which provide the catalysis needed for mild cure finishing are ammonium methanesulfonate, ammonium carboxymethanesulfonate (NH.sub.4 O.sub.3 SCH.sub.2 COOH), ammonium benzenesulfonate, and ammonium p-toluenesulfonate.Type: GrantFiled: February 27, 1975Date of Patent: April 6, 1976Assignee: The United States of America as represented by the Secretary of AgricultureInventors: Robert M. Reinhardt, Russell M. H. Kullman