Modification Of Molecular Structure Of Substrate By Chemical Means, E.g., Cross-linking Of Substrate, Hydrolysis Of Substrate, Etc. Patents (Class 8/493)
  • Patent number: 7276088
    Abstract: The invention provides new hair colorant and cosmetic compositions comprising carbon nanotubes that have either been chemically functionalized or physically modified to increase their affinity for hair.
    Type: Grant
    Filed: March 30, 2005
    Date of Patent: October 2, 2007
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Xueying Huang, Robert K. Kobos, Gann Xu
  • Patent number: 7195695
    Abstract: The invention provides a method for preparing cross-linked cellulosic fibers. A sheet of cellulosic fibers treated with a caustic solution under non-mercerizing conditions is cross-linked with a solution containing polymeric polycarboxylic acid cross-linking agents. The treated cellulosic fibrous material is dried and cured in sheet form to promote intrafiber cross-linking. Cross-linked fiber products of this method, which is economic, that possess good absorption and wet resiliency properties are also disclosed.
    Type: Grant
    Filed: October 2, 2003
    Date of Patent: March 27, 2007
    Assignee: Rayonier Products & Financial Services Company
    Inventors: Karl D. Sears, W. Jason Cooper, Tina R. Murguia
  • Patent number: 7018511
    Abstract: The invention provides a method for preparing cross-linked cellulosic fibers. A sheet of mercerized cellulosic fibers with a purity of at least 95% is treated with a solution containing a carboxylic acid cross-linking agent. The treated cellulosic fibrous material is dried and cured in sheet form to promote intrafiber cross-linking. Cross-linked fiber products produced are economic and possess good porosity, bulking characteristics, wet resiliency, absorption characteristics, low fines, low nits and low knots. The invention also includes blended cellulose compositions comprising a minor proportion of cross-linked mercerized cellulosic fibers and a major proportion of other cellulosic fibers. The invention further provides individualized, chemically cross-linked mercerized cellulosic fibers of high purity.
    Type: Grant
    Filed: October 16, 2002
    Date of Patent: March 28, 2006
    Assignee: Rayonier Products & Financial Services Company
    Inventors: Karl D. Sears, Michael E. Haeussler, Tina R. Solomon
  • Patent number: 6949126
    Abstract: Garments are constructed from lyocell fabric which has been resinated using a textile resin having just two groups per molecule which can reactively cross-link with cellulose molecules of the lyocell fabric then causticised by application under tension of an aqueous solution of sodium hydroxide, and the constructed garments are dyed in a garment dyeing operation. Garments can be produced by this route which retain a smooth, evenly-dyed appearance with unpuckered seams and minimal creasing and so present a desired formal look, as distinct from the casual look imparted by the effects of fibrillation normally produced when lyocell garments undergo garment dyeing.
    Type: Grant
    Filed: January 23, 2002
    Date of Patent: September 27, 2005
    Assignee: Lenzing Fibers Limited
    Inventors: James Martin Taylor, Geoffrey William Collins
  • Patent number: 6773464
    Abstract: A hair coloring composition or kit of parts comprises: a compound which is capable of acting as a substrate for endogenous transglutaminase in and/or on hair and which comprises a chromophore that is capable of absorbing and/or emitting light in the visible part of the electromagnetic spectrum; and a reducing agent. The composition may be used to coloring hair.
    Type: Grant
    Filed: April 5, 2002
    Date of Patent: August 10, 2004
    Assignee: Unilever Home & Personal Care USA, division of Conopco, Inc.
    Inventor: Pawel Slusarewicz
  • Patent number: 6773462
    Abstract: A method of coloring hair comprises: treating hair with an oxidizing agent; and applying to the hair either during or after treatment with the oxidizing agent a composition comprising a compound which is capable of acting as a substrate for endogenous transglutaminase in and/or on the hair and which comprises a chromophore that is capable of absorbing and/or emitting light in the visible part of the electromagnetic spectrum. Products for use in the method comprise the oxidizing agent packaged separately from the compound.
    Type: Grant
    Filed: April 5, 2002
    Date of Patent: August 10, 2004
    Assignee: Unilever Home & Personal Care USA Division of Conopco, Inc.
    Inventor: Pawel Slusarewicz
  • 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: 6620293
    Abstract: The invention provides a method for preparing cross-linked cellulosic fibers. A sheet of mercerized cellulosic fibers with a purity of at least 95% is treated with a solution containing carboxylic acid cross-linking agents. The treated cellulosic fibrous material is dried and cured in sheet form to promote intrafiber cross-linking. Cross-linked fiber products of this method, which is economic, that possess good porosity, bulking characteristics, wet resiliency, and absorption, low fines, low nits, and low knots, are also disclosed. This invention also includes a blended cellulose composition comprising a minor proportion of cellulose fibers having been similarly cross-linked with carboxylic acids and a major proportion of other cellulose fibers. This invention further provides individualized, chemically cross-linked cellulosic fibers comprising mercerized individualized cellulosic fibers with a purity of at least 95%, cross-linked with carboxylic acids.
    Type: Grant
    Filed: April 11, 2001
    Date of Patent: September 16, 2003
    Assignee: Rayonier Inc.
    Inventors: Karl D. Sears, Michael E. Haeussler, Tina R. Solomon
  • Patent number: 5922865
    Abstract: Process for dyeing natural or synthetic polyamide fibre materials, which comprises dyeing these fibre materials with at least one anionic acid dye of the formula ##STR1## and treating the fibre material mentioned, during or after the dyeing process, with a colourless fixing agent which contains sulfo or sulfato groups and contains at least two fibre-reactive groups, whereR.sub.1 and R.sub.2 independently of one another are hydrogen or substituted or unsubstituted C.sub.1 -C.sub.4 alkyl,X.sub.1 is substituted or unsubstituted C.sub.1 -C.sub.8 alkyl, C.sub.5 -C.sub.7 cycloalkyl, phenyl or naphthyl,or the radical of the formula --N(R.sub.2)--X.sub.1 is a ring, which may contain further heteroatoms,Y.sub.1 is a radical of the formula ##STR2## in which B.sub.1 is a colourless organic bridge member,R.sub.3 is hydrogen or substituted or unsubstituted C.sub.1 -C.sub.4 alkyl andR.sub.4 is hydrogen or substituted or unsubstituted C.sub.1 -C.sub.8 alkyl, C.sub.5 -C.sub.7 cycloalkyl, phenyl or naphthyl, andA.sub.
    Type: Grant
    Filed: June 2, 1998
    Date of Patent: July 13, 1999
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Jean-Marie Adam, Jean-Pierre Bacher, Francine Casi
  • Patent number: 5897673
    Abstract: Fine metallic particles-containing fibers with various fine metallic particles therein, which have fiber properties to such degree that they can be processed and worked, and which can exhibit various functions of the fine metallic particles, such as antibacterial deodorizing and electroconductive properties are provided, as well as a method for producing the same.
    Type: Grant
    Filed: December 6, 1996
    Date of Patent: April 27, 1999
    Assignee: Japan Exlan Company Limited
    Inventors: Ryosuke Nishida, Yoko Yamamoto
  • Patent number: 5873909
    Abstract: 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: Grant
    Filed: April 7, 1998
    Date of Patent: February 23, 1999
    Assignee: Ducoa, L.P.
    Inventors: George L. Brodmann, John S. Thackrah
  • Patent number: 5792222
    Abstract: Process for dyeing natural or synthetic polyamide fiber materials, which comprises dyeing these fiber materials with at least one anionic acid dye of the formula ##STR1## and treating the fiber material mentioned, during or after the dyeing process, with a colorless fixing agent which contains sulfo or sulfato groups and contains at least two fiber-reactive groups, whereR.sub.1 and R.sub.2 independently of one another are hydrogen or substituted or unsubstituted C.sub.1 -C.sub.4 alkyl,X.sub.1 is substituted or unsubstituted C.sub.1 -C.sub.8 alkyl, C.sub.5 -C.sub.7 cycloalkyl, phenyl or naphthyl, or the radical of the formula --N(R.sub.2)--X.sub.1 is a ring, which may contain further heteroatoms,Y.sub.1 is a radical of the formula ##STR2## in which B.sub.1 is a colorless organic bridge member,R.sub.3 is hydrogen or substituted or unsubstituted C.sub.1 -C.sub.4 alkyl andR.sub.4 is hydrogen or substituted or unsubstituted C.sub.1 -C.sub.8 alkyl, C.sub.5 -C.sub.7 cycloalkyl, phenyl or naphthyl, andA.sub.
    Type: Grant
    Filed: March 3, 1997
    Date of Patent: August 11, 1998
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Jean-Marie Adam, Jean-Pierre Bacher, Francine Casi
  • Patent number: 5607482
    Abstract: The present invention relates to a method for textile printing with aqueous dispersions in which an organic fixing agent is crosslinked with a blocked polyisocyanate having (i) an average molecular weight of about 800 to about 25,000, (ii) a content of blocked isocyanate groups, calculated as free NCO and based on non-blocked polyisocyanate, corresponding to an NCO content of about 5 to about 20% by weight, (iii) an ionic group content of about 1 to about 75 milliequivalents per 100 g of blocked polyisocyanate, and (iv) a content of polyalkylene oxide units of about 1 to about 20% by weight, based on blocked polyisocyanate, said blocked polyisocyanate being obtained by the reaction of(a) organic polyisocyanates,(b) isocyanate-reactive compounds containing (potential) ionic groups,(c) polyalkylene ether alcohols,(d) NCO blocking agents, and(e) optionally, isocyanate-reactive compounds that are different from components (b), (c), and (d).
    Type: Grant
    Filed: September 8, 1995
    Date of Patent: March 4, 1997
    Assignee: Bayer Aktiengesellschaft
    Inventors: Helmut Reiff, Herbert Wigger, Matthias Gehling, Karl-Heinz Passon
  • Patent number: 5578088
    Abstract: Process for dyeing aminated cellulose/polyester blend fabric with fiber-reactive disperse dyestuffs Fiber materials comprising cellulose fibers or a mixture of cellulose and polyester fibers are dyed by first modifying the fiber material with one or more compounds containing amino groups and then dyeing the modified fiber material with a fiber-reactive disperse dyestuff in supercritical CO.sub.2.
    Type: Grant
    Filed: June 29, 1995
    Date of Patent: November 26, 1996
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Andreas Schrell, Werner H. Russ
  • Patent number: 5575821
    Abstract: A process for the dyeing of fiber materials with water-soluble anionic dyes, in particular those having a fiber-reactive group, is described, according to which dyeing is carried out using low-electrolyte or entirely electrolyte-free and/or low-alkali or entirely alkali-free dye solutions (dye liquors, printing pastes) and in which a fiber material is used which was modified by means of a saturated straight-chain or branched aliphatic or cycloaliphatic compound which is unsubstituted or substituted by one or more hydroxy groups and contains at least one primary, secondary or tertiary amino group or quaternary ammonium group and at least one hydrolyzable ester group, it also being possible for the aliphatic radical in this compound to be interrupted by one or more hetero groups.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: November 19, 1996
    Assignee: Hoechst AG
    Inventors: Andreas Schrell, Werner H. Russ, Thomas Riehm
  • Patent number: 5507839
    Abstract: A dye is fixed to a solid material by using a diene or dienophile as the dye, incorporating a dienophile or diene into the solid material, effecting Diels-Alder reaction between the diene and the dienophile or between the dye and the solid material for binding the dye to the solid material. The dyed solid material has an increased dye concentration and prevents dye diffusion with the lapse of time.
    Type: Grant
    Filed: November 22, 1994
    Date of Patent: April 16, 1996
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Mitsugu Tanaka
  • Patent number: 5431697
    Abstract: Disclosed are a reversibly variable color pattering composition for synthetic resin articles which includes a granulated material containing (i) an olefin polymer and (ii) at least one reversibly variable color material selected from the group consisting of thermochromic materials and photochromic materials, the granulated material having been subjected to crosslinking reaction following granulation; a method of producing the same; and a shaped article having a reversibly variable color pattern as molded from a molding composition including a synthetic resin and the color patterning composition.
    Type: Grant
    Filed: June 8, 1994
    Date of Patent: July 11, 1995
    Assignee: Matsui Shikiso Chemical Co., Ltd.
    Inventors: Masayasu Kamata, Hiromi Suno, Toshihisa Maeda, Ryuichi Hosikawa
  • Patent number: 4883496
    Abstract: A process for dyeing crystalline poly(meta-phenylene isophthalamide) fibers with a water-insoluble dye padded onto such fibers by heating with steam at critical temperatures first to activate the dye and thereafter to diffuse it into the fibers.
    Type: Grant
    Filed: December 30, 1988
    Date of Patent: November 28, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Hamid M. Ghorashi
  • Patent number: 4834770
    Abstract: A process for the simultaneous caustic treatment and dyeing of cotton goods with vat dyes by the pad steam process, wherein the goods, after being padded with a dye liquor and dried, are subjected to a caustic treatment step and subsequently further treated in conventional manner.
    Type: Grant
    Filed: June 24, 1987
    Date of Patent: May 30, 1989
    Assignee: Ciba-Geigy Corporation
    Inventor: Peter J. Horn
  • Patent number: 4812140
    Abstract: High-tenacity nylon fabrics are dyed in a multi-step continuous aqueous dyeing process. Uniformly dyed fabrics having a high degree of fiber bundle penetration result.
    Type: Grant
    Filed: July 15, 1987
    Date of Patent: March 14, 1989
    Assignee: Burlington Industries, Inc.
    Inventors: Ernest J. Russell, M. K. Choi
  • Patent number: 4668234
    Abstract: An aromatic polyamide fiber containing a large amount of a surfactant, sufficient to enable it to be dyed a deep shade. The high surfactant level enables the fiber to be stabilized, at low temperatures, against progressive laundry shrinkage.
    Type: Grant
    Filed: June 12, 1986
    Date of Patent: May 26, 1987
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Eric Vance, Bruce A. Barton
  • Patent number: 4563189
    Abstract: A method for treating natural textile fibres and synthetic polyamide fibres to enhance their affinity for disperse dyestuffs which comprises treating the fibres with an aqueous solution or dispersion of an arylating agent. The arylating agent contains both a benzene or naphthalene ring and a reactive group, such as a halo-triazine group. The fibres may be treated by exhaustion from long liquors or by padding, and the affinity for disperse dyestuffs is considerably increased thereby.
    Type: Grant
    Filed: February 6, 1984
    Date of Patent: January 7, 1986
    Assignee: Wool Development International Ltd.
    Inventor: David M. Lewis
  • Patent number: 4492585
    Abstract: Antifelting treatment of keratinous fibres according to which the material is freed of its natural or foreign impurities by an aqueous detergent bath containing at least one metal ion sequestering agent; the rinsed material is treated by a water-soluble salt of a metal having several valencies, hot, in an aqueous bath of pH 3 to 4 during a sufficient period of time to achieve the homogeneous fixing of the metal salt on the fibre; the rinsed material is treated with an aqueous bath in the presence of an oxidizing agent which does not introduce metal ions and of an organic base at a pH of 8.5 to 9, hot, for 1 hour 30 minutes to 2 hours; the rinsed material is treated with an aqueous bath containing a reducing agent which does not introduce metal ions and a sequestering agent, to eliminate the ingredients used; and the material obtained is treated by an aqueous bath at pH 3, the material being subsequently drained and dried over acid.
    Type: Grant
    Filed: July 5, 1983
    Date of Patent: January 8, 1985
    Assignee: Societe Normande de Recherches et de Participation
    Inventor: Pierre Prevel
  • Patent number: 4487608
    Abstract: Viscose or other regenerated cellulose fibres are prepared for dyeing by cross-linking the fibres, and they are then dyed by a continuous dyeing technique, followed by fixing of the dye in the fibres. The continuous dyeing generally involves impregnating the assembly in one or more impregnation stages with a vat or reactive dye and alkali. The process results in improved dye receptivity. The process is of particular value for the production of dyed fabrics and yarns and novel products comprise cross-linked regenerated cellulose fibres dyed with vat or reactive dyes. Other disclosed processes involve stretching cross-linked viscose fibres during mercerization, and cross-linking crimped fibres.
    Type: Grant
    Filed: March 1, 1983
    Date of Patent: December 11, 1984
    Assignee: Lintrend Limited
    Inventor: Frederick R. W. Sloan
  • 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: 4456453
    Abstract: The simultaneous oxidation and fixation are effected in the presence of a stable aqueous composition comprising an oxidation agent selected among the iodates and bromates of alkaline metals and a fixation agent selected among thermo-hardenable cationic resins.
    Type: Grant
    Filed: September 15, 1982
    Date of Patent: June 26, 1984
    Assignee: Manufacture de Produits Chimiques Protex
    Inventor: Jean Balland
  • Patent number: 4436521
    Abstract: The invention relates to a process for the production of anti-shrink treated wool dyeings in which wool is dyed with acid milling or metal complex dyes either before, after or between the steps of an anti-shrink treatment and, after the dyeing or the anti-shrink treatment or one of the steps of the anti-shrink treatment subsequent to the dyeing, is after-treated with a liquor containing a cationic fixing agent and a levelling/retarding agent having affinity for wool dyestuffs, and to a composition usable for such a process.
    Type: Grant
    Filed: May 27, 1982
    Date of Patent: March 13, 1984
    Assignee: Sandoz Ltd.
    Inventors: Oskar Annen, Hermann Egli, Karl Zesiger
  • Patent number: 4424061
    Abstract: An agent for improving the color fastness of dyed cotton fibers and textiles to chlorinated water which comprises a specific diamine compound. The combination of the diamine and hydrolyzable tannin further increases the color fastness to chlorinated water. The tannin can be more strongly fixed to the fibers by further treating with a metal salt, whereby an excellent color fastness to chlorinated water can be maintained for a prolonged period of time.
    Type: Grant
    Filed: February 17, 1982
    Date of Patent: January 3, 1984
    Assignee: Dainippon Pharmaceutical Co., Ltd.
    Inventors: Yoshiyuki Shimohiro, Akio Murata, Chiyoko Nisioka
  • Patent number: 4370143
    Abstract: A process for treatment of polyester fabrics imparts improved characteristics to the fabric, including improved moisture wicking, soil-release, and soil-redeposition properties, and less static cling. The process comprises treatment of the fabric with a caustic solution, preferably in the presence of an appropriate catalyst, followed by the application of a polyester copolymer, the copolymer having both hydrophobic and hydrophilic groups. The process treats the entire fabric, not just the surface, and provides a product sufficiently comfortable to be used for intimate apparel and active sportswear.
    Type: Grant
    Filed: March 12, 1981
    Date of Patent: January 25, 1983
    Assignee: Collins and Aikman Corp.
    Inventor: Jackson Bauer
  • Patent number: 4207068
    Abstract: A process is disclosed for producing dyed fabrics by treating cotton with inorganic phosphorylating agent, curing, and then dyeing to develop the pattern.
    Type: Grant
    Filed: October 16, 1978
    Date of Patent: June 10, 1980
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Eugene J. Blanchard, Joseph S. Bruno, Gloria A. Gautreaux