Alkylatedurea-aldehyde Condensate Patents (Class 8/186)
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Patent number: 9944769Abstract: Urea-derived products, for example liquid compositions containing urea-derived compounds, such as dihydroxyethyleneurea (“DHEU”), and methods for making same are provided.Type: GrantFiled: October 26, 2012Date of Patent: April 17, 2018Assignee: The Procter & Gamble CompanyInventors: Jacqueline Besinaiz Thomas, Stephen Wayne Heinzman, Gregory Charles Gordon, James Cyrus Winchester, III, Roy Lee Oakley, Jr.
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Patent number: 7494968Abstract: The present invention relates to the use as perfuming ingredient of a compound of formula wherein R represents a hydrogen atom or a methyl or ethyl group, and R1 represents (i) a (Me)(R2)C?C(R3) group, R2 representing a hydrogen atom or a methyl group and R3 representing a methyl or ethyl group, or (ii) a phenyl group optionally substituted by one or two methyl groups; as well as to the compositions or articles associated with these compounds.Type: GrantFiled: September 27, 2006Date of Patent: February 24, 2009Assignee: Firmenich SAInventors: Jean-Marc Gaudin, Pascal Millet
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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: 6719809Abstract: A process for treating a textile fabric to impart or enhance at least one property of the fabric comprising: introducing the fabric into an aqueous formaldehyde containing solution to provide a wet pickup of an effective amount of the solution by the fabric, applying to the fabric an effective amount of a catalyst for catalyzing a reaction between formaldehyde and the fabric; thereafter exposing the wet fabric to a temperature of at least about 300° F. to react the formaldehyde with the fabric to impart or enhance the property of the fabric before there is a substantial loss of formaldehyde from the exposed fabric.Type: GrantFiled: February 7, 2002Date of Patent: April 13, 2004Assignee: The Procter & Gamble CompanyInventor: George L. Payet
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Patent number: 6716255Abstract: A process for treating a textile fabric to impart or enhance at least one property of the fabric comprising: introducing the fabric into an aqueous formaldehyde containing solution to provide a wet pickup of an effective amount of the solution by the fabric, applying to the fabric an effective amount of a catalyst for catalyzing a reaction between formaldehyde and the fabric; thereafter exposing the wet fabric to a temperature of at least about 300° F. to react the formaldehyde with the fabric to impart or enhance the property of the fabric before there is a substantial loss of formaldehyde from the exposed fabric.Type: GrantFiled: February 7, 2002Date of Patent: April 6, 2004Assignee: The Procter & Gamble CompanyInventor: George L. Payet
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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: 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: 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: 6599327Abstract: Provided are compounds and methods for modifying a material to change properties of the material, as well as a variety of products obtained using the methods. In one embodiment, a material comprising one or more modifiable functional groups is reacted with an activated hydrophobic acyl group in the presence of a hindered base, thereby to covalently attach the hydrophobic acyl group to the modifiable functional groups on the material. The material which is modified may be, for example, a carbohydrate, and the modifiable functional groups on the material may be hydroxyls. For example, materials such as cellulose may be modified by reacting it with an acid chloride or acid anhydride including a hydrophobic acyl group, in the presence of a hindered base, such as tripentylamine, to attach the hydrophobic acyl groups to the hydroxyls on the cellulose, thereby to increase the hydrophobicity of the cellulose.Type: GrantFiled: July 5, 2002Date of Patent: July 29, 2003Assignee: Nano-Tex, LLCInventors: David S. Soane, David A. Offord
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Patent number: 6500212Abstract: The present invention is directed to a method for treating a material to impart wrinkle reduction and temporary crease resistance thereto, and improve feel. The method involves: applying to said material a solution of a treatment composition in an amount effective to impart temporary crease and stain resistance, said fabric treatment composition comprising a hydroxy urea or hydroxy amide compound; and allowing said treatment composition to dry at ambient temperature, wherein said hydroxy urea compound comprises one urea and at least one hydroxyl group and said hydroxy amide compound comprises at least one amide group and at least one hydroxyl group. The material treatment is useful in reducing wrinkles in clothing, improving the feel of fabrics, and increasing the moisture adsorbence and retention in natural and synthetic fabrics.Type: GrantFiled: November 8, 2000Date of Patent: December 31, 2002Assignee: National Starch and Chemical Investment Holding CorporationInventors: Klein A. Rodrigues, Susanne Goodson
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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: 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: 5789326Abstract: A binder is applied to fibers to bind particles to the fibers. The fibers have hydrogen bonding functional groups. The particles have functional groups capable of forming a hydrogen bond or a coordinate covalent bond. The binder comprises binder molecules, the binder molecules having at least one functional group that is capable of forming a hydrogen bond or a coordinate covalent bond with the particles, and at least one functional group that is capable of forming a hydrogen bond with the fibers. A substantial portion of the particles that are adhered to the fibers are adhered in particulate form by hydrogen bonds or coordinate covalent bonds to the binder, and the binder is in turn adhered to the fibers by hydrogen bonds. Fibers containing particles bound by this method are easily densified.Type: GrantFiled: November 19, 1996Date of Patent: August 4, 1998Assignee: Weyerhaeuser CompanyInventors: Michael R. Hansen, Richard H. Young, Sr.
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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: 5707404Abstract: An improved method of treating a fabric comprising the step of contacting a fabric with the cis isomer of a compound having the general formula; ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, and R.sub.4 are the same or different and each of R.sub.1, R.sub.2, R.sub.3, and R.sub.4 represent branched or straight chain alkyl, carbocyclic or aryl.Type: GrantFiled: January 14, 1994Date of Patent: January 13, 1998Assignee: WestPoint Stevens, Inc.Inventors: George A. Andrews, Joseph Peterson, William Hough
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Patent number: 5639281Abstract: This invention relates to methods of applying finishes to garments. More particularly, this invention relates to improved methods for applying specialty finishing on the garments using a cellulose-type based carrier and to a carrier/finish composition for practicing the method which achieves a smooth and even coating of the finishing onto fabric without having to recover unused finishing and which can be accomplished using standard garment production equipment.Type: GrantFiled: July 1, 1996Date of Patent: June 17, 1997Assignee: Hopkins Chemical IncorporatedInventor: Gregory J. Hopkins
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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: 5589256Abstract: A method of producing easily densified high bulk fibers that have adhered particulates. The high bulk fibers have hydrogen bonding or coordinate covalent bonding functionalities, and a binder is applied to the fibers to bind the particles to the fibers. The binder has a functional group that forms a hydrogen bond or a coordinate covalent bond with the particles, and a functional group that forms a hydrogen bond with the fibers. A substantial portion of the particles that are adhered to the fibers are adhered in particulate form by hydrogen bonds or coordinate covalent bonds to the binder, and the binder is in turn adhered to the fibers by hydrogen bonds. Fibers containing particles bound by this method are easily densified.Type: GrantFiled: August 17, 1992Date of Patent: December 31, 1996Assignee: Weyerhaeuser CompanyInventors: Michael R. Hansen, Richard H. Young, Sr.
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Patent number: 5580356Abstract: The fibrillation tendency of solvent-spun cellulose fibre is reduced by treating the fibre with a cross-linking agent and a flexible linear polymer with terminal functional groups, for example polyethylene glycol (PEG) of molecular weight 300 to 600. The fibre may be treated in never-dried or in fabric form.Type: GrantFiled: August 17, 1995Date of Patent: December 3, 1996Assignee: Courtaulds Fibres (Holdings) LimitedInventor: James M. Taylor
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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: 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: 4854934Abstract: They have the formula: ##STR1## where either R.sub.1 and R.sub.2 are identical and represent --CH.sub.2 R where R=H or a C.sub.1 to C.sub.4 alkyl group or R.sub.1 and R.sub.2 together form the --CH.sub.2 (CR.sub.4 R.sub.4).sub.n --CH.sub.2 group where n=0 or 1, R.sub.4 =H or --CH.sub.3, R.sub.3 =H or --CH.sub.2 R.sub.5 where R.sub.5 =H or a C.sub.1 to C.sub.4 alkyl group. A and A.sub.1 are either identical and represent H or A and A.sub.1 together form an ethylene, trimethylene or --CH(OCH.sub.2 R.sub.6)--CH(OCH.sub.2 R.sub.6)-- radical where R.sub.6 =H or a C.sub.1 to C.sub.4 alkyl group or, when R.sub.3 =H, a 1,2 dihydroxy-ethylene group.They are obtained by reacting a disubstituted ethanal ##STR2## with a urea ANH--CO--NHA, followed if required by etherification with an alcohol R.sub.5 CH.sub.2 OH.Type: GrantFiled: March 14, 1988Date of Patent: August 8, 1989Assignee: Societe Francaise HoechstInventors: Didier Wilhelm, Antonio Gelabert, Alain Blanc
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Patent number: 4847143Abstract: A binder composition is disclosed, which comprises:(A) a copolymer emulsion which contains as its essential ingredients vinyl acetate, ethylene, and a monomer represented by the formula (1): ##STR1## wherein R.sub.1 is H or CH.sub.3 ; and R.sub.2 is H or an alkyl group having not more than 5 carbon atoms, the proportions of the respective ingredients being within the range of 55-96.5/3-40/0.5-5 on a weight basis;(B) a formaldehyde-free nitrogen-containing glyoxal resin;(C) a metal salt catalyst; and optionally(D) a higher alcohol sulfuric acid ester-based surfactant.Nonwoven fabrics and impregnated papers using the binder composition are also disclosed. The binder composition exhibits not only high resistance to water and solvents but also low residual free formaldehyde level, with an improvement in foamability being optionally attainable.Type: GrantFiled: June 4, 1986Date of Patent: July 11, 1989Assignee: Sumitomo Chemical Company, LimitedInventors: Katsuyoshi Watanabe, Takashi Miyaoka, Takeo Oyamada
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Patent number: 4615708Abstract: 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: GrantFiled: October 18, 1985Date of Patent: October 7, 1986Assignee: The United States of America as represented by the Secretary of AgricultureInventors: Eugene J. Blanchard, Joseph S. Bruno
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Patent number: 4585827Abstract: Textile treating agent for imparting crease resistance is made by mixing 1 mol glyoxal, 2 mols formaldehyde, 1 mol urea and 1.5 mol ethylene glycol and reacting the mixture first at pH 6 to 7 at 60.degree. C. and then at pH 3 at 60.degree.. The product is found to have more stable formaldehyde release properties in textile treating baths as pH of the bath is varied in the range from about 3.0 to about 4.5.Type: GrantFiled: July 13, 1984Date of Patent: April 29, 1986Assignee: American Cyanamid CompanyInventor: Kenneth H. Remley
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Patent number: 4505712Abstract: Cyclic urea/glyoxal/polyol condensates are excellent formaldehyde-free crosslinking resins for cellulosic textile fabrics and insolubilizers for binders in paper coating compositions.Type: GrantFiled: February 13, 1984Date of Patent: March 19, 1985Assignee: Sun Chemical CorporationInventors: William C. Floyd, Bernard F. North
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Patent number: 4486197Abstract: A fabric containing viscose fibres is subjected to cross-linking followed by mercerization and then generally further cross-linking. It is possible to obtain products having good dyeability soft handle and good wet and dry crease resistance.Type: GrantFiled: February 3, 1982Date of Patent: December 4, 1984Assignee: Lintrend Licensing Company LimitedInventor: Frederick R. W. Sloan
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Patent number: 4472165Abstract: A method for the removal of free formaldehyde from textile fabrics which have been treated with formaldehyde derived resins to make the fabrics crease-resistant is disclosed. The process comprises forming a composition composed of a foaming agent, ethylene urea and an appropriate diluent and then foaming this composition to form a stable foam. The foam is then applied to the resin treated fabric in a layer, the foam is collapsed on the fabric to force it through the fabric and then the fabric is subjected to drying and curing conditions. The process is advantageous in that it utilizes relatively small volumes of liquids and thus is energy efficient and environmentally favorable.Type: GrantFiled: September 24, 1982Date of Patent: September 18, 1984Assignee: United Merchants and Manufacturers, Inc.Inventors: Razmic S. Gregorian, Chettoor G. Namboodri
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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: 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: 4376633Abstract: Zwitterions are employed as catalysts in a chemical finishing process to treat cellulosic textiles with crosslinking agents and produce easy-care properties in the finished materials. The process comprises treatment of the textile material, such as cotton fabric, by impregnating it with a solution containing a cellulose-crosslinking agent and, as catalyst a zwitterion, alone or in combination with a magnesium salt, drying and curing the fabric. Said finished fabrics are characterized by an unusual combination of useful, desirable properties--smooth-drying appearance, wrinkle resistance, serviceable strength, and inoffensive formaldehyde release.Type: GrantFiled: June 12, 1981Date of Patent: March 15, 1983Assignee: The United States of America as represented by the Secretary of AgricultureInventors: Robert M. Reinhardt, Donald J. Daigle
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Patent number: 4345063Abstract: Alkylated glyoxal/cyclic urea condensates are excellent formaldehyde-free crosslinking resins for textile fabrics.Type: GrantFiled: May 15, 1981Date of Patent: August 17, 1982Assignee: Sun Chemical CorporationInventor: Bernard F. North
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Patent number: 4332586Abstract: Alkylated glyoxal/cyclic urea condensates are excellent formaldehyde-free crosslinking resins for textile fabrics.Type: GrantFiled: May 15, 1981Date of Patent: June 1, 1982Assignee: Sun Chemical CorporationInventor: Bernard F. North
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Patent number: 4307146Abstract: Cotton-polyester fiber-blended textile fabrics and knitted goods are resin-finished to be imparted with a high soft feeling and a durable crease resistance using a resin bath containing a specific combination of an amino resin having in the molecule at least two N-methylol groups which may be partially or wholly alkylated, a diol type surface active agent and an acid catalyst for cross-linkage.Type: GrantFiled: March 27, 1980Date of Patent: December 22, 1981Assignee: Sumitomo Chemical Company, LimitedInventors: Eiichi Kawai, Takeo Matsui, Kozo Kawata, Hisao Takagishi
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Patent number: 4300898Abstract: Blends of a glyoxal/cyclic urea condensate or a partially or wholly alkylated derivative thereof and dimethylol dihydroxyethylene urea or a partially or wholly alkylated derivative thereof improve the properties of textile fabrics treated therewith and contain only small amounts of free formaldehyde.Type: GrantFiled: September 16, 1980Date of Patent: November 17, 1981Assignee: Sun Chemical CorporationInventor: Bernard F. North
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Patent number: 4298747Abstract: New compounds in the class of .alpha.,.omega.-bis(4,5-dihydroxy-3-methyl-2-oxoimidazolidin-1-yl)alkanes have been prepared from the reaction of glyoxal and an alkylenebis(3-methylurea). These compounds are useful as formaldehyde-free finishing agents for textiles containing cellulose.Type: GrantFiled: August 25, 1980Date of Patent: November 3, 1981Assignee: The United States of America as represented by the Secretary of AgricultureInventors: John G. Frick, Jr., Robert J. Harper, Jr.
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Patent number: 4295847Abstract: Process for finishing textiles of natural or regenerated cellulose, which have been pretreated with liquid ammonia, wherein the finishing agent used is an N-monomethylol compound or N-monoalkoxymethyl compound of 4-hydroxy- or 4-alkoxy-5,5-dimethylpropyleneurea. The process couples a high degree of finishing effect (in respect of improvement of the shrink resistance and wrinkle resistance) with only a very slight effect on the hand and especially on the tensile strength.Type: GrantFiled: January 25, 1980Date of Patent: October 20, 1981Assignee: BASF AktiengesellschaftInventors: Harro Petersen, Panemangalore S. Pai, Manfred Reichert
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Patent number: 4295846Abstract: Process for the production of formaldehyde-free finishing agents for textiles containing or consisting of cellulose which is based on the reaction of urea or symmetrically disubstituted urea with glyoxal in the presence of buffer salts and alcohols at a pH of below 7, buffered mixtures of 4,5-hydroxyethyleneureas or N,N'-disubstituted 4,5-dihydroxyethyleneureas partially etherified in 4- and 5-positions being formed.Type: GrantFiled: March 18, 1980Date of Patent: October 20, 1981Assignee: BASF AktiengesellschaftInventors: Harro Petersen, Panemangalore S. Pai, Friedrich Klippel, Friedrich Reinert
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Patent number: 4285690Abstract: Alkylated glyoxal/cyclic urea condensates are excellent formaldehyde-free crosslinking resins for textile fabrics.Type: GrantFiled: November 17, 1980Date of Patent: August 25, 1981Assignee: Sun Chemical CorporationInventor: Bernard F. North
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Patent number: 4284758Abstract: Alkylated glyoxal/cyclic urea condensates are excellent formaldehyde-free crosslinking resins for textile fabrics.Type: GrantFiled: November 17, 1980Date of Patent: August 18, 1981Assignee: Sun Chemical Corp.Inventor: Bernard F. North
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Patent number: 4277243Abstract: Improved levels of abrasion resistance, breaking strength are coupled with high levels of resilience, as measured by durable-press appearance rating and wrinkle recovery angles, by a process in which cotton or cotton-containing fabric is treated with polyfunctional N-methylol reagents, a Bronsted acidic catalyst or Bronsted acid-generating catalyst and selected phosphate salts. The fabric is impregnated with these and supplementary agents as desired and cured by conventional methods.Type: GrantFiled: January 31, 1979Date of Patent: July 7, 1981Assignee: The United States of America as represented by the Secretary of AgricultureInventor: Stanley P. Rowland
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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: 4200564Abstract: Disclosed is a treatment process for textile substrates comprising or consisting of regenerated cellulose, which process comprises applying to the substrate an aqueous medium comprising (A) a monomeric, hydrolysis stable, hydrosoluble, resin forming cross linking agent containing at least two N-methylol or N-alkoxymethyl groups, (B) a hydrosoluble, prepolymerized, linear, filler resin forming, cross-linking agent, also containing at least two N-methylol or N-alkoxymethyl groups, (C) a reactive acetal of formula ##STR1## wherein X and Y, independently, are H or CH.sub.2 OH, (D) a first cross-linking catalyst, being an alkaline earth metal salt of a strong acid and (E) a second cross-linking catalyst, being an acidic aluminium salt, subsequently drying the substrate and subjecting same to a temperature at which cross-linking takes place, and an aqueous concentrate for use therein.Type: GrantFiled: October 18, 1978Date of Patent: April 29, 1980Assignee: Sandoz Ltd.Inventors: Paul Komminoth, Tibor Robinson, Milica Urosevic
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Patent number: 4199322Abstract: The preparation of bacteriostatic, water-insoluble peroxide-containing complexes of zinc acetate, by reaction of zinc acetate with hydrogen peroxide in the presence of acetic acid, is disclosed. A process for in situ formation and deposition of these complexes on cellulosic and polyester textiles is described. The textile finishes so produced inhibit the growth and spreading of odor- and infection-producing gram-positive and gram-negative bacteria on the treated textiles. The antibacterial activity of the finished textiles is durable to repeated launderings.Type: GrantFiled: December 28, 1978Date of Patent: April 22, 1980Assignee: The United States of America as represented by the Secretary of AgricultureInventors: Gary F. Danna, Tyrone L. Vigo, Clark M. Welch
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Patent number: 4185961Abstract: A method for reducing the fibrillation of polypyrrolidone fibers which comprises contacting the fibers with an aqueous solution containing dimethyloldihydroxyethyleneurea and an acidic catalyst.Type: GrantFiled: November 14, 1977Date of Patent: January 29, 1980Assignee: Chevron Research CompanyInventor: Mitchell Danzik