Amido-aldehyde Condensate Patents (Class 8/184)
  • Patent number: 10604868
    Abstract: Protein fibers for artificial hair include a polycation, wherein the protein fibers for artificial hair are crosslinked with an organic compound and/or a metal salt, and the protein fibers for artificial hair have curls. A method for producing the protein fibers for artificial hair includes treating artificial protein fibers that are crosslinked with an organic compound and/or a metal salt with a treatment solution containing a polycation, and curling the artificial protein fibers, or curling artificial protein fibers that are crosslinked with an organic compound and/or a metal salt, and treating the curled artificial protein fibers with a treatment solution containing a polycation.
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: March 31, 2020
    Assignee: KANEKA CORPORATION
    Inventors: Masato Fujita, Yujiro Sonoyama, Sohei Nishida
  • Patent number: 6908976
    Abstract: 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: Grant
    Filed: October 2, 2003
    Date of Patent: June 21, 2005
    Assignee: Healthtex Apparel Corp.
    Inventors: Mohan L. Sanduja, Carl Horowitz, Izabella Zilbert, Paul Thottathil, Gerald L. Williamson
  • Patent number: 6730130
    Abstract: An agent containing a lubricant, a non-ionic surfactant and an amphoteric surfactant of a specified kind in specified amounts is applied at a specified rate to spun synthetic fibers before draft and false-twisting processes are simultaneously carried on these fibers such that false-twisted yarns with a high quality without dyeing specks and without abnormal tension variations can be obtained.
    Type: Grant
    Filed: March 26, 2002
    Date of Patent: May 4, 2004
    Assignee: Takemoto Yushi Kabushiki Kaisha
    Inventors: Shigehiko Sakuraba, Masahiro Nagaya, Yukiko Nagai, Fumihiko Kimura
  • Patent number: 6719809
    Abstract: 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: Grant
    Filed: February 7, 2002
    Date of Patent: April 13, 2004
    Assignee: The Procter & Gamble Company
    Inventor: George L. Payet
  • Patent number: 6716255
    Abstract: 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: Grant
    Filed: February 7, 2002
    Date of Patent: April 6, 2004
    Assignee: The Procter & Gamble Company
    Inventor: George L. Payet
  • Patent number: 6645256
    Abstract: 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: Grant
    Filed: April 4, 2001
    Date of Patent: November 11, 2003
    Assignee: Healthtex Apparel Corp.
    Inventors: Mohan L. Sanduja, Carl Horowitz, Izabella Zilbert, Paul Thottathil, Gerald L. Williamson
  • Patent number: 6645255
    Abstract: 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: Grant
    Filed: April 4, 2001
    Date of Patent: November 11, 2003
    Assignee: Healthtex Apparel Corp.
    Inventors: Mohan L. Sanduja, Carl Horowitz, Izabella Zilbert, Paul Thottathil, Gerald L. Williamson
  • Patent number: 6638319
    Abstract: 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: Grant
    Filed: April 4, 2001
    Date of Patent: October 28, 2003
    Assignee: Healthtex Apparel Corp.
    Inventors: Mohan L. Sanduja, Carl Horowitz, Izabella Zilbert, Paul Thottathil, Gerald L. Williamson
  • Patent number: 6491727
    Abstract: Compositions and methods of rendering cellulosic materials flame resistant, and articles of manufacture including the materials, are disclosed. The compositions include one or more crosslinking agents, and, optionally, one or more phosphorus-based compounds. Dimethyloldihydroxyethylene urea, imidazole, imidazolidinones, dialdehydes, and dichlorotriazines are preferred crosslinking agents. The methods involve applying the composition to the material, and covalently linking the crosslinking agent to the material. An advantage of covalently linking the crosslinking agent to the cellulosic material is the lack of any potential toxicity associated with uncrosslinked fire retardants on the cellulosic material and the stability of the bonds between the material and the crosslinking agent to conventional steam cleaning and other carpet cleaning methods. In a preferred embodiment, the fire-retardant cotton-fiber composition is used to prepare cotton carpets, upholstery or raised surface apparel.
    Type: Grant
    Filed: June 9, 1999
    Date of Patent: December 10, 2002
    Assignee: Cotton Incorporated
    Inventors: William A. Rearick, John Turner, Michele Lefeber Wallace, Dana Wernsman
  • Patent number: 6488718
    Abstract: Compositions and methods of rendering cellulosic materials fire retardant, and articles of manufacture including the materials, are disclosed. The compositions include an amino acid, protein and/or peptide and optionally include one or more crosslinking and/or coupling agents. Enzymes are a preferred protein. The methods involve applying the composition to the material, and optionally involve covalently linking the amino acid, protein and/or peptide to the material, either directly or via a crosslinking agent. An advantage of covalently linking the amino acid, protein and/or peptide to the cellulosic material is the lack of any potential toxicity associated with breathable dust particles of unbound amino acid, protein and/or peptide, and the stability of the bonds between the material and the amino acid, protein and/or peptide to conventional steam cleaning and other carpet cleaning methods.
    Type: Grant
    Filed: November 10, 1999
    Date of Patent: December 3, 2002
    Assignee: Cotton Incorporated
    Inventor: William A. Rearick
  • Patent number: 6432144
    Abstract: An agent containing a lubricant, a non-ionic surfactant and an amphoteric surfactant of a specified kind in specified amounts is applied at a specified rate to spun synthetic fibers before draft and false-twisting processes are simultaneously carried on these fibers such that false-twisted yarns with a high quality without dyeing specks and without abnormal tension variations can be obtained.
    Type: Grant
    Filed: May 4, 2000
    Date of Patent: August 13, 2002
    Assignee: Takemoto Yushi Kabushiki Kaisha
    Inventors: Shigehiko Sakuraba, Masahiro Nagaya, Yukiko Nagai, Fumihiko Kimura
  • Patent number: 6102973
    Abstract: 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: Grant
    Filed: August 23, 1995
    Date of Patent: August 15, 2000
    Inventor: Rodolfo A. Morales
  • Patent number: 5879410
    Abstract: 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: Grant
    Filed: December 12, 1997
    Date of Patent: March 9, 1999
    Assignee: Nisshinbo Industries, Inc.
    Inventors: Yuichi Yanai, Masayoshi Oba, Yasushi Takagi, Tadashi Isogai
  • Patent number: 5759210
    Abstract: 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: Grant
    Filed: September 27, 1996
    Date of Patent: June 2, 1998
    Assignee: Courtaulds Fibres (Holdings) Limited
    Inventors: Christopher David Potter, James Martin Taylor
  • Patent number: 5755828
    Abstract: 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: Grant
    Filed: December 18, 1996
    Date of Patent: May 26, 1998
    Assignee: Weyerhaeuser Company
    Inventor: John A. Westland
  • Patent number: 5580356
    Abstract: 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: Grant
    Filed: August 17, 1995
    Date of Patent: December 3, 1996
    Assignee: Courtaulds Fibres (Holdings) Limited
    Inventor: James M. Taylor
  • Patent number: 5399240
    Abstract: The invention is a method of making a wet formed, sheeted, readily reslurriable sheeted crosslinked cellulose and the products made by the method. Crosslinked wood pulp fibers tend to be quite brittle. If crosslinked while in sheeted form, the sheets cannot be readily defibered, either in a wet or dry state, without serious fiber degradation. The sheet products of the present invention can be easily redispersed or repulped in water without significant fiber breakage. The present products are made by including within the sheet, while still in wet form, a debonding or softening agent which is preferably added before the latent crosslinking reactant. Most preferably the debonder is added prior to the headbox of a paper machine and the crosslinking reactant is applied near the end of the forming wire or at the press section. The treated sheet is dried conventionally. Crosslinking may occur entirely during drying or during a period of additional heating, usually at a temperature in excess of 100.degree. C.
    Type: Grant
    Filed: July 2, 1993
    Date of Patent: March 21, 1995
    Assignee: Weyerhaeuser Company
    Inventors: Peter A. Graef, Frank R. Hunter
  • Patent number: 5358535
    Abstract: 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: Grant
    Filed: May 7, 1993
    Date of Patent: October 25, 1994
    Assignee: Societe Francaise Hoechst
    Inventors: Wilhelm Didier, Antonio Gelabert
  • Patent number: 5225047
    Abstract: The invention is a method of making a wet formed, sheeted, readily reslurriable sheeted crosslinked cellulose and the products made by the method. Crosslinked wood pulp fibers tend to be quite brittle. If crosslinked while in sheeted form, the sheets cannot be readily defibered, either in a wet or dry state, without serious fiber degradation. The sheet products of the present invention can be easily redispersed or repulped in water without significant fiber breakage. The present products are made by including within the sheet, while still in wet form, a debonding or softening agent which is preferably added before the latent crosslinking reactant. Most preferably the debonder is added prior to the headbox of a paper machine and the crosslinking reactant is applied near the end of the forming wire or at the press section. The treated sheet is dried conventionally. Crosslinking may occur entirely during drying or during a period of additional heating, usually at a temperature in excess of 100.degree. C.
    Type: Grant
    Filed: August 17, 1989
    Date of Patent: July 6, 1993
    Assignee: Weyerhaeuser Company
    Inventors: Peter A. Graef, Frank R. Hunter
  • Patent number: 5160503
    Abstract: 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: Grant
    Filed: November 13, 1989
    Date of Patent: November 3, 1992
    Assignee: West Point Pepperell
    Inventor: Richard D. Smith
  • Patent number: 5139531
    Abstract: Flame retardant cellulosic fabrics having reduced shrinkage are obtained by treatment involving reaction of fabric with a non self-condensing methylolamide under aqueous acid conditions, followed by treatment of fabric with tetrakis hydroxylmethyl phosphonium compound or condensate and then curing the ammonia.
    Type: Grant
    Filed: January 11, 1991
    Date of Patent: August 18, 1992
    Assignee: Albright & Wilson Limited
    Inventors: Robert Cole, Geoffrey Hand
  • Patent number: 5135541
    Abstract: Flame retardant cellulosic fabrics having reduced shrinkage are obtained by treatment of fabric with a tetrakis hydroxymethyl phosphonium compound or condensate and then curing with ammonia, followed by treatment involving reaction of the fabric with a non self-condensing methylolamide under aqueous acid conditions.
    Type: Grant
    Filed: September 21, 1990
    Date of Patent: August 4, 1992
    Assignee: Albright & Wilson Limited
    Inventors: Robert Cole, Geoffrey Hand
  • Patent number: 5066307
    Abstract: Polyhydroxyalkyl melamine used in the processing of textiles with amino resins to reduce formaldehyde emissions and improve textile "hand".
    Type: Grant
    Filed: March 18, 1991
    Date of Patent: November 19, 1991
    Assignee: American Cyanamid Company
    Inventors: Robert G. Lees, Edward B. Lawler
  • Patent number: 4702957
    Abstract: Nonwoven fabrics characterized by a superior balance of strength and softness are formed utilizing an aqueous emulsion prepared by the emulsion polymerization of a vinyl ester of an alkanoic acid interpolymerized with: 10 to 30% by weight ethylene; 15 to 40% by weight of C.sub.4 -C.sub.10 dialkyl maleate; and 1 to 5% by weight of copolymerizable N-methylol containing monomer.
    Type: Grant
    Filed: September 8, 1986
    Date of Patent: October 27, 1987
    Assignee: National Starch and Chemical Corporation
    Inventor: Paul R. Mudge
  • Patent number: 4520176
    Abstract: A textile finishing composition comprising (1) a diluent and (2) a durable press resin composition containing (a) an aminoplast resin and (b) an aldehyde. The textile finishing composition is combined with an acid catalyst and applied to textile materials to impart softness, improved wetting properties and durable press properties.The textile finishing composition is applied at lower than normal dry add-on levels to textile materials to provide textile materials having lower levels of formaldehyde.
    Type: Grant
    Filed: December 12, 1983
    Date of Patent: May 28, 1985
    Assignee: SWS Silicones Corporation
    Inventors: Eugene R. Martin, David S. Ansel, Paul A. Manis
  • Patent number: 4486197
    Abstract: 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: Grant
    Filed: February 3, 1982
    Date of Patent: December 4, 1984
    Assignee: Lintrend Licensing Company Limited
    Inventor: Frederick R. W. Sloan
  • Patent number: 4483689
    Abstract: The use of 4,4'-azobis(4-cyanovaleric acid) and its salts as water-soluble free radical initiators, and simultaneously or alternatively the addition of catalytic amounts of tetrakis(hydroxymethyl)phosphonium sulfate as a polymerization accelerator, in the sequential polymerization and acid-catalyzed grafting of N-methylolacrylamide on cotton textiles from a single treating bath in a padding and two-stage heat curing operation, is disclosed. The cotton textiles as treated are free from discoloration and excessive tendering produced by peroxide-type initiators, and these textiles exhibit increased smooth drying performance, abrasion resistance and strength relative to textiles treated conventionally with dimethyloldihydroxyethyleneurea to comparable wrinkle recovery angles.
    Type: Grant
    Filed: July 29, 1983
    Date of Patent: November 20, 1984
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventor: Clark M. Welch
  • Patent number: 4472165
    Abstract: 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: Grant
    Filed: September 24, 1982
    Date of Patent: September 18, 1984
    Assignee: United Merchants and Manufacturers, Inc.
    Inventors: Razmic S. Gregorian, Chettoor G. Namboodri
  • Patent number: 4447241
    Abstract: 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: Grant
    Filed: April 12, 1982
    Date of Patent: May 8, 1984
    Assignee: Springs Industries, Inc.
    Inventors: James E. Hendrix, George L. Payet
  • Patent number: 4376633
    Abstract: 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: Grant
    Filed: June 12, 1981
    Date of Patent: March 15, 1983
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Robert M. Reinhardt, Donald J. Daigle
  • Patent number: 4336023
    Abstract: There is disclosed a process for imparting to cellulose or cellulose-containing textile materials durable press properties by treating cellulose or cellulose-containing textile materials by applying to the textile materials a treating composition of (a) about 1-25% by weight, based on dry weight of the material, of an activated water-soluble bisvinyl compound and (b) about 0.2-25% by weight, based on dry weight of material, of (1) a copolymer having a Tg<20.degree. C., said copolymer being produced from a monomer mixture containing (i) about 0.25-99.5% by weight, based on weight of copolymer, of a quaternary monomer obtained by reacting an epihalohydrin having the formula, ##STR1## with an ammonium salt having the formula CH.sub.2 .dbd.C(R)C(O)O-A-N(CH.sub.3).sub.2 HY, wherein R is H or methyl, A is a (C.sub.2 -C.sub.6) alkylene group having at least two carbons in a chain between adjoined O and N atoms or A is a polyoxyethylene group, (CH.sub.2 CH.sub.2 O).sub.n CH.sub.2 CH.sub.
    Type: Grant
    Filed: December 30, 1980
    Date of Patent: June 22, 1982
    Assignee: Rohm and Haas Company
    Inventor: Charles E. Warburton, Jr.
  • Patent number: 4292036
    Abstract: 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: Grant
    Filed: May 5, 1980
    Date of Patent: September 29, 1981
    Assignee: Stauffer Chemical Company
    Inventors: Edward N. Walsh, Thomas A. Hardy
  • Patent number: 4279959
    Abstract: Disclosed is a water-insoluble addition copolymer of an ethylenically unsaturated unsubstituted amide and at least one other ethylenically unsaturated monomer comprising sufficient amide groups mono-functionally bonded to a polyaldehyde to render the copolymer thermosettable. The copolymer is adapted for use as or for formulation in a binder. Such a binder is readily made from a copolymer latex and is useful in processes for the preparation of products such as nonwoven fabrics and bonded papers.
    Type: Grant
    Filed: December 28, 1979
    Date of Patent: July 21, 1981
    Assignee: Rohm and Haas Company
    Inventors: Dominic R. Falgiatore, William D. Emmons
  • Patent number: 4277243
    Abstract: 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: Grant
    Filed: January 31, 1979
    Date of Patent: July 7, 1981
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventor: Stanley P. Rowland
  • Patent number: 4255149
    Abstract: High levels of durable-press appearance rating and conditioned wrinkle recovery angle together with improved abrasion resistance, breaking strength, and tearing strength are the primary textile qualities imparted to cellulosic textile with aqueous solutions containing N-methylolacrylamide-type reagents, a salt of persulfuric acid, and an alkali metal phosphate, which may be supplemented with standard wetting agents and fabric softeners.
    Type: Grant
    Filed: January 31, 1979
    Date of Patent: March 10, 1981
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Stanley P. Rowland, Florine A. Blouin, Frederick F. Shih
  • Patent number: 4224030
    Abstract: 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: Grant
    Filed: January 5, 1979
    Date of Patent: September 23, 1980
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Robert M. Reinhardt, Russell M. H. Kullman
  • Patent number: 4200564
    Abstract: 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: Grant
    Filed: October 18, 1978
    Date of Patent: April 29, 1980
    Assignee: Sandoz Ltd.
    Inventors: Paul Komminoth, Tibor Robinson, Milica Urosevic
  • Patent number: 4180382
    Abstract: 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: Grant
    Filed: July 1, 1977
    Date of Patent: December 25, 1979
    Assignee: International Minerals & Chemical Corp.
    Inventor: Jerry H. Hunsucker
  • Patent number: 4127382
    Abstract: 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: Grant
    Filed: April 21, 1977
    Date of Patent: November 28, 1978
    Inventor: Ronald S. Perry
  • Patent number: 4125652
    Abstract: 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, prepolymerised, 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: Grant
    Filed: May 13, 1977
    Date of Patent: November 14, 1978
    Assignee: Sandoz Ltd.
    Inventors: Paul Komminoth, Tibor Robinson, Milica Urosevic
  • Patent number: 4105403
    Abstract: 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: Grant
    Filed: May 7, 1976
    Date of Patent: August 8, 1978
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Bethlehem K. Andrews, Robert J. Harper, Jr., Norton A. Cashen
  • Patent number: 4090844
    Abstract: Wrinkle resistance, soil release, improved breaking strength and abrasion, and durable deodorant (bacteriostatic) quality are a plurality of useful properties imparted to cotton by a process with chemicals which include polyfunctional crosslinking compounds, zinc salts of polymerizable acrylic-type acids, and basic persulfates. The fabric is impregnated, heat-fixed, and cured by conventional methods and employing conventional equipment.
    Type: Grant
    Filed: June 23, 1977
    Date of Patent: May 23, 1978
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventor: Stanley P. Rowland
  • Patent number: 4088443
    Abstract: An aluminum chlorhydroxide-phosphoric acid catalyst system has been devised that is practical for treatments of cellulose-containing textile materials with formaldehyde and formaldehyde-amide adducts under flash curing conditions to produce valuable, improved durable-press properties in the treated textiles.
    Type: Grant
    Filed: February 6, 1976
    Date of Patent: May 9, 1978
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Russell M. H. Kullman, Robert M. Reinhardt
  • Patent number: 4080480
    Abstract: Alkyl and aryl phosphonic acids and certain salts thereof have been found useful as catalysts for the chemical reactions involved in finishing cotton and other cellulosic textiles. These versatile catalysts can be employed in a variety of finishing treatments including dimensional stability, durable press, and flame resistance and are operative under a diverse range of processing conditions.
    Type: Grant
    Filed: June 9, 1976
    Date of Patent: March 21, 1978
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Robert M. Reinhardt, Russell M. H. Kullman, Donald J. Daigle
  • Patent number: 4073617
    Abstract: 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: Grant
    Filed: April 26, 1976
    Date of Patent: February 14, 1978
    Inventors: Robert B. Le Blanc, Destin A. Le Blanc
  • Patent number: 4052158
    Abstract: A process for producinga wash-durable finish on a textile is provided which comprises applying to the textile an effective amount of:A. at least one free-radical polymerizable monomer having a functional group capable of undergoing an acid catalyzed condensation reaction withB. at least one co-reactant having a reactive methylol, hydroxy, alkoxy or amino group capable of undergoing acid-catalyzed condensation with a reactive group on said free radical polymerizable monomer;C. at least one free radical generating catalyst and at least one acid catalyst, or at least one catalyst having both free radical generating and acidic characteristics, andD. subjecting said textile to curing conditions to conjointly effect free radical polymerization and acid-catalyzed condensation reactions.
    Type: Grant
    Filed: September 10, 1976
    Date of Patent: October 4, 1977
    Assignee: Stauffer Chemical Company
    Inventor: Edward D. Weil
  • Patent number: 4039282
    Abstract: A catalyst system composed of aluminum chlorhydroxide [Al.sub.2 (OH).sub.5 Cl] and hydrogen peroxide [H.sub.2 O.sub.2 ] is disclosed which through synergistic interaction of these components is highly efficient and effective in treatments of cellulose-containing textiles with formaldehyde-amide adduct crosslinking agents. Products with durable-press properties are produced through use of the new catalyst system in treatments employing flash curing conditions, i.e., short processing times at high temperatures, as well as in treatments employing curing temperatures down to 130.degree. C. with longer processing times. Unlike previously known synergistically activated catalyst systems based upon Al.sub.2 (OH).sub.5 Cl, the presently disclosed system utilizes the combination of Al.sub.2 (OH).sub.5 Cl with H.sub.2 O.sub.2, an oxidizing agent, rather than with an acid or a salt with latent acidic or Lewis acid properties.
    Type: Grant
    Filed: July 19, 1976
    Date of Patent: August 2, 1977
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Russell M. H. Kullman, Robert M. Reinhardt
  • Patent number: 4032992
    Abstract: 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: Grant
    Filed: October 17, 1969
    Date of Patent: July 5, 1977
    Assignee: J. P. Stevens & Co., Inc.
    Inventors: Ildo Emil Pensa, Robert Otto Rau
  • Patent number: 4017259
    Abstract: Durable press properties are imparted to cellulosic fabrics by reacting with either of two new tertiary amino-N-methylol reagents. Autocatalysis was shown by these reagents when applied as the free bases or as hydrochlorides to cotton fabric by conventional methods. Resilience, recurability, improved scorch resistance, and enhanced dye and brightener sorptions are realized.
    Type: Grant
    Filed: October 24, 1975
    Date of Patent: April 12, 1977
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Clinton P. Wade, Stanley P. Rowland
  • Patent number: 3966484
    Abstract: The present invention relates to a composition for the sizing of materials containing cellulosic fibers (e.g. paper) by the use of carbamoyl chlorides.
    Type: Grant
    Filed: March 24, 1975
    Date of Patent: June 29, 1976
    Assignee: Kemanord Aktiebolag
    Inventors: Karin Ulla Elisabet Helmer, Alf Ragnar Reuterhall