Grafting Textile Fibers Patents (Class 8/DIG18)
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Patent number: 5614598Abstract: This invention relates to polymers having enhanced hydrophilicity and thermal regulative properties. Exemplary polymers include aliphatic polyamide polymers and polyester polymers. The polymer has bonded thereto a hydrophilic polysiloxane having an affinity for the polymer and having a molecular weight greater than about 1000 g/mol preferably greater than about 2000 g/mol, and preferably greater than about 4000 g/mol. The polymer has substantially no polymerization with the hydrophilic polysiloxane. Alternatively, an aliphatic polyamide polymer is provided having enhanced hydrophilicity and thermal regulative properties. The polymer has bonded thereto an anionic hydrophilic polysiloxane having an affinity for the aliphatic polyamide polymer. The aliphatic polyamide polymer has substantially no polymerization with the anionic hydrophilic siloxane.Type: GrantFiled: May 12, 1995Date of Patent: March 25, 1997Assignee: Comfort Technologies, Inc.Inventors: Lloyd F. Barringer, Jr., William T. Ledford
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Patent number: 5605756Abstract: A flavored toothpaste composition is bonded to the bristles of a disposable toothbrush by a process which involves the chemical grafting and polymerizing of selected monomers and prepolymers to the bristles via a free radical mechanism. This process locks in the flavor until the product can be utilized. When the toothpaste is brought into contact with an aqueous medium, such as saliva in the oral cavity, the toothpaste dissolves thereby releasing the desired flavor to the teeth and oral cavity.Type: GrantFiled: March 23, 1995Date of Patent: February 25, 1997Assignee: GMZ Holding CompanyInventors: Mohan L. Sanduja, Kenneth Sugathan, Carl Horowitz, Lina Zilberman
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Patent number: 5354815Abstract: This invention relates to polymers having enhanced hydrophilicity and thermal regulative properties. Exemplary polymers include aliphatic polyamide polymers and polyester polymers. The polymer has bonded thereto a hydrophilic polysiloxane having an affinity for the polymer and having a molecular weight greater than about 1000 g/mol preferably greater than about 2000 g/mol, and preferably greater than about 4000 g/mol. The polymer has substantially no polymerization with the hydrophilic polysiloxane. Alternatively, an aliphatic polyamide polymer is provided having enhanced hydrophilicity and thermal regulative properties. The polymer has bonded thereto an anionic hydrophilic polysiloxane having an affinity for the aliphatic polyamide polymer. The aliphatic polyamide polymer has substantially no polymerization with the anionic hydrophilic siloxane.Type: GrantFiled: June 5, 1992Date of Patent: October 11, 1994Assignee: Comfort TechnologiesInventors: Lloyd F. Barringer, Jr., William T. Ledford
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Patent number: 5049684Abstract: An electrically conducting material including a cyanic group-containing material having adsorbed thereby copper sulfide. The cyanic group-containing material is in the form of powder or shaped body such as fiber, film, plate, rod or like and is formed of a synthetic polymer such as polyacrylonitrile or a polyamide having introduced thereinto cyanic groups; a naturally occurring polymeric substance such as cotton having introduced thereinto cyanic groups; or a low molecular compound such as phthalonitrile. The electrically conducting material may be prepared by treating the cyanic group-containing material with a source of monovalent copper ions and a sulfur-containing compound to form copper sulfide adsorbed by the cyanic group-containing material.Type: GrantFiled: September 3, 1982Date of Patent: September 17, 1991Assignee: Nihon Sanmo Dyeing Co., Ltd.Inventors: Shinji Tomibe, Reizo Gomibuchi, Kiyofumi Takahashi
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Patent number: 4748076Abstract: A water absorbent fibrous product comprising a fibrous cellulosic material impregnated with a water absorbent acrylic polymer and a fibrous material, which is produced by a method in which an aqueous solution of a monomeric component comprising acrylic acid and a radical initiator is diffused in a fibrous cellulosic material and heated, followed by blending with a fibrous material. The fibrous product exhibits a high water absorbency, and finds applications as high-quality disposable diapers, sanitary napkins, surgical pads, surgical sheets, paper towels or the like.Type: GrantFiled: February 13, 1986Date of Patent: May 31, 1988Assignee: Hayashikane Shipbuilding & Engineering Co., Ltd.Inventor: Kazuo Saotome
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Patent number: 4613333Abstract: Textile materials containing cellulosic fibers are provided with durable press properties by reacting and crosslinking the cellulosic fibers with a durable press finishing agent consisting essentially of a silicone compound and a silicone fragmentation reactant in an effective amount to fragment the silicone compound when exposed to curing conditions. The fabric is impregnated with a finishing bath containing the durable press finishing agent and the fabric is heated to fragment the silicone compound and react and crosslink the finishing agent with the cellulosic fibers to impart durable press properties to the fabric.Type: GrantFiled: April 5, 1985Date of Patent: September 23, 1986Assignee: Springs Industries, Inc.Inventors: James E. Hendrix, John Y. Daniels, Taryn M. White
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Patent number: 4558097Abstract: This invention is a nylon fiber useful for improved comfort for wearers of apparel fabric made therefrom comprising (a) from about 5 to 15 percent by weight of poly (N,N-dimethylacrylamide) having a molecular weight which in a 25% aqueous solution gives a viscosity of from about 20 to 1 000 centipoise (0.02 to 1.0 Pa.s) at 25.degree. C. and (b) correspondingly from about 85 to 95% by weight nylon.Type: GrantFiled: May 11, 1984Date of Patent: December 10, 1985Assignee: Allied CorporationInventors: Robert A. Lofquist, Ian C. Twilley, Peter R. Saunders
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Patent number: 4549880Abstract: Textile materials containing cellulosic fibers are provided with durable press properties by reacting and crosslinking a silicone compound with the cellulosic fibers. The fabric is impregnated with a finishing bath containing the silicone compound and a suitable catalyst and the fabric is heated to dry and cure and crosslink the finishing composition.Type: GrantFiled: September 2, 1983Date of Patent: October 29, 1985Assignee: Springs Industries, Inc.Inventors: James E. Hendrix, John Y. Daniels, Taryn M. White
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Patent number: 4500396Abstract: A method is described for metal recovery from basic ammoniated metal solutions by means of a weakly-acidic cation-exchange material comprising a polymeric felt incorporating radiation-grafted monomers comprising carboxylic acid functional groups.Type: GrantFiled: January 26, 1984Date of Patent: February 19, 1985Inventors: Vincent F. D'Agostino, Joseph Y. Lee, Stephen Zapisek, George Schore
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Patent number: 4458053Abstract: This invention is a nylon fiber useful for improved comfort for wearers of apparel fabric made therefrom comprising (a) from about 5 to 15 percent by weight of poly (N,N-dimethylacrylamide) having a molecular weight which in a 25% aqueous solution gives a viscosity of from about 20 to 1 000 centipoise (0.02 to 1.0 Pa.s) at 25.degree. C. and (b) correspondingly from about 85 to 95% by weight nylon.Type: GrantFiled: October 31, 1983Date of Patent: July 3, 1984Assignee: Allied CorporationInventors: Robert A. Lofquist, Ian C. Twilley, Peter R. Saunders
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Patent number: 4277242Abstract: Shrink-resistance is provided in a wool textile by applying ionizing radiation and a polymer resin (or mixture of resins) selected such that the resin will be bonded onto the wool fibres and form a relatively thin application, the process being carried out substantially at ambient temperature. The radiation step may be a preliminary step followed by the fixing of polymer resin or polymer resin mixture onto the wool in the absence of catalysts or alternatively the polymer resin may be applied before the radiation process. The polymer resin may be just one resin selected from a group of known resins having a shrink-resistant effect on wool textiles when fixed thereto by prior art techniques, or a mixture of such known resins may be used.Type: GrantFiled: January 18, 1978Date of Patent: July 7, 1981Assignee: Australian Atomic Energy CommisionInventor: Keith G. McLaren
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Patent number: 4238193Abstract: Durable excellent water absorption property and antistatic property can be given to synthetic fiber by a simple method. In the method, a polymerization initiator is absorbed in the fiber and then the fiber is applied with a water-soluble polymerizable monomer and heat treated to form a polymer thereon.Type: GrantFiled: September 19, 1978Date of Patent: December 9, 1980Assignee: Kanebo, Ltd.Inventors: Akio Kisaichi, Masao Oguchi, Toshihide Takeda, Akira Aikawa, Toshio Saito
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Patent number: 4227882Abstract: Change of color of grafted fiber or fibrous material having active hydrogen can be prevented by treating the fiber or fibrous material with a processing agent consisting mainly of a compound having the following general formula ##STR1## wherein M.sub.1 -M.sub.5 represent a hydrogen atom or alkali metal, and n represents 0 or 1.Type: GrantFiled: September 6, 1979Date of Patent: October 14, 1980Assignee: Kanebo, Ltd.Inventors: Toshio Saito, Masao Oguchi, Akio Kisaichi
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Patent number: 4212649Abstract: A method for manufacturing heat-resistant polyvinyl chloride fiber is given without injuring the flame-retardance of the polyvinyl chloride fiber, by grafting acrylic acid or calcium acrylate onto polyvinyl chloride by a radiation chemical process. The polyvinyl chloride fiber is irradiated either in contact with a mixture of water, ethylene dichloride and acrylic or in contact with a mixture of methanol, water, ethylene dichloride and calcium acrylate. In the case of the grafting of acrylic acid the graft fiber is subjected to a heat treatment or grafted polyacrylic acid is converted to a divalent metal salt.Type: GrantFiled: August 26, 1977Date of Patent: July 15, 1980Assignee: Japan Atomic Energy Research InstituteInventors: Ichiro Sakurada, Toshio Okada, Kanako Kaji
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Patent number: 4210415Abstract: Knitted fabrics are fulled and shrinkproofed by a process wherein a loosely-knitted fabric is exposed to a diisocyanate. The so-treated material is then fulled and treated with a polyamine, whereby a polyurea is formed on the surface of the fibers and the fabric thus becomes shrinkproofed.Type: GrantFiled: April 7, 1977Date of Patent: July 1, 1980Assignee: The United States of America as represented by the Secretary of AgricultureInventors: Clay E. Pardo, Jr., Robert E. Foster, Willie Fong, deceased
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Patent number: 4203723Abstract: A process for producing aromatic polyamides having improved nonflammability characteristics in which a polyamide substrate is contacted with a gaseous medium comprising a minor amount of a haloolefinic material and an inert diluent in the presence of light having sufficient energy to effect chemical addition of the haloolefin to said polyamide substrate.Type: GrantFiled: December 6, 1976Date of Patent: May 20, 1980Inventors: James C. Administrator of the National Aeronautics and Space Administration, with respect to an invention of Fletcher, Madeline S. Toy, Roger S. Stringham
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Patent number: 4190623Abstract: Two basic methods for texturizing or structurizing high-polymer materials are disclosed. One method resides in selectively irradiating a high-polymer material so as to form chemically active species in the material. The material is contacted with a treating medium which reacts with the chemically active species in such a manner as to cause shrinkage of the material. The texturizing or structurizing effects are due to the fact that the irradiated areas of the material will shrink to a different extent in dependence upon the concentration of the chemically active species and/or that the irradiated areas of the material will shrink to a different extent than the nonirradiated areas of the material. The other method resides in homogeneously irradiating a high-polymer material so as to form chemically active species in the material. The chemically active species in certain areas of the material are at least partially destroyed by contacting selected areas of the material with a suitable medium.Type: GrantFiled: April 9, 1975Date of Patent: February 26, 1980Assignee: Forschungs Institut Fuer TextiltechnologieInventors: Wolfgang Bobeth, Adolf Heger, Helmar Passler, Hermann Roloff, Ellen Patitz, Adolf-Ernst Schwind, Erwin Zilinski
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Patent number: 4138298Abstract: Two basic methods for texturizing or structurizing high-polymer materials are disclosed. One method resides in selectively irradiating a high-polymer material so as to form chemically active species in the material. The material is contacted with a treating medium which reacts with the chemically active species in such a manner as to cause shrinkage of the material. The texturizing or structurizing effects are due to the fact that the irradiated areas of the material will shrink to a different extent in dependence upon the concentration of the chemically active species and/or that the irradiated areas of the material will shrink to a different extent than the non-irradiated areas of the material.Type: GrantFiled: May 24, 1974Date of Patent: February 6, 1979Assignee: Forschungs Institut fur TextiltechnologieInventors: Wolfgang Bobeth, Adolf Heger, Helmar Passler, Hermann Roloff, Ellen Patitz, Adolf-Ernst Schwind, Erwin Zilinski
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Patent number: 4135877Abstract: A novel process for imparting durable antistatic and hygroscopic properties together with an excellent hand to fibers comprised of a high polymer having active hydrogen atoms in its molecule or fibrous structures made thereof is provided. The process is performed by heat treating such fibers or fibrous structures in the presence of a treating solution comprising at least one water-soluble vinyl monomer, acid and water. When the fibers impregnated with the solution are heated, the water-soluble vinyl monomers are graft polymerized with the fibers. The fibers are considered to act as a polymerization initiator, so that the graft polymerization reaction according to the present invention, different from conventional processes, can be effected without the aid of any polymerization initiators such as persulfates or peroxides.Type: GrantFiled: October 31, 1977Date of Patent: January 23, 1979Assignee: Kanebo, Ltd.Inventors: Akira Aikawa, Masao Oguchi, Toshihide Takeda, Akio Kisaichi, Toshio Saito
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Patent number: 4126415Abstract: An antistatic pile carpet having a relatively pliable primary backing and a tufted surface, said surface being comprised of fibers selected from the group consisting of polyester and polyamide fibers having grafted thereon from 1 to 5 percent by weight of a conductive polymeric salt of a polyethylenimine having a molecular weight of 200 to 10,000 and a sulfonic acid compound of the formula ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 are individually hydrogen or a lower alkyl radical having 1-3 carbon atoms.Type: GrantFiled: October 12, 1977Date of Patent: November 21, 1978Assignee: Allied Chemical CorporationInventors: Marsha H. Coiner, John C. Haylock, Julian H. Newland, Judd L. Schwartz
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Patent number: 4092107Abstract: A process is provided for finishing fabric containing cellulose fibers to improve its crease resistance, soil release and wet soiling properties while retaining a hand similar to that of the fabric prior to finishing wherein a latex containing a cross-linkable resin which will impart crease resistance to a fabric contains the polymerization product of a mixture of from 70% to about 97% by weight of an ester of acrylic acid and a saturated monohydric alcohol having 1 to 8 carbon atoms and from about 30 to 3% of an ester of acrylic acid and an unsaturated monohydric alcohol having 2 to 5 carbon atoms.Type: GrantFiled: May 3, 1976Date of Patent: May 30, 1978Assignee: Akzona IncorporatedInventors: Heinz Beck, Gerhard Schlichtmann
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Patent number: 4089649Abstract: Hydrophilic additives are provided which may be introduced into fibrous articles to provide improved water absorbency and charge dissipation properties which resist abrasion and laundering. The fibrous articles are treated by contacting the articles with at least one hydrophilic additive, polyfunctional reactant and nitrogen catalyst under conditions sufficient to incorporate hydrophilic additive, polyfunctional reactant and nitrogen catalyst in the articles, followed by heating the fibrous articles to obtain the desired fiber characteristics.Type: GrantFiled: March 4, 1976Date of Patent: May 16, 1978Assignee: Allied Chemical CorporationInventors: Frank Mares, Theodore Largman
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Patent number: 4087246Abstract: Hydrophilic additives are provided which may be introduced into fibrous articles to provide improved water absorbency and charge dissipation properties which resist abrasion and laundering. The fibrous articles are treated by contacting the articles with at least one hydrophilic additive and nitrogen catalyst under conditions sufficient to incorporate additive and catalyst in the article, followed by heating the treated article to obtain the desired fiber characteristics.Type: GrantFiled: March 4, 1976Date of Patent: May 2, 1978Assignee: Allied Chemical CorporationInventors: Frank Mares, Theodore Largman
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Patent number: 4065256Abstract: A shaped article of hydrophobic synthetic polymer is graft polymerized uniformly and economically in a high yield, and consequently is endowed with various advantageous properties, when it is treated in an aqueous emulsified dispersion having dispersed in water an hydrophobic radical polymerization initiator, an organic solvent which is liquid at normal room temperature, naphthalene and an unsaturated monomer containing in the molecular unit thereof at least one double bond capable of radical polymerization.Type: GrantFiled: February 2, 1976Date of Patent: December 27, 1977Assignee: Toyo Boseki Kabushiki KaishaInventors: Kikuji Igeta, Masakatsu Ohguchi
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Patent number: 4063885Abstract: A single treatment process for imparting durable soil release and soil repellent properties to cotton fabrics and to cotton polyester blend fabrics with widely different constructions and compositions comprising free radical initiated reactions of a vinyl monomer that contains carboxyl functional groups with cotton and polyester in the fabrics, is described. Of special interest is the unusually high efficiency of removal of both aqueous soils and oily soils from the treated fabrics and the unusually high durability of the properties of treated cotton fabrics and cotton polyester blend fabrics with widely different constructions and compositions to laundering and cleaning.Type: GrantFiled: February 6, 1976Date of Patent: December 20, 1977Assignee: The United States of America as represented by the Secretary of AgricultureInventors: Trinidad Mares, Jett C. Arthur, Jr., James A. Harris
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Patent number: 4043753Abstract: Disclosed is a process for preparing fabrics which exhibit desirable stain-release, antisoil-redeposition, antistatic and hydrophilic properties. According to this process, a fabric comprised of a fiber of poly(ethylene terephthalate) modified with p-carboxycinnamic acid is contacted with acrylic acid and a free radical initiator under grafting reaction conditions.Type: GrantFiled: March 1, 1976Date of Patent: August 23, 1977Assignee: Eastman Kodak CompanyInventor: Robert B. Barbee
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Patent number: 4036588Abstract: A process for increasing the water-absorbency of cellulose-containing materials by graft-copolymerizing onto said material a vinyl monomer containing a hydrophilic group and treating the graft-copolymerized material with a decrystallizing agent for cellulose.Type: GrantFiled: March 9, 1976Date of Patent: July 19, 1977Assignee: Research CorporationInventors: Joel Lawson Williams, Vivian Thomas Stannett
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Patent number: 4003701Abstract: A peroxidic-initiated graft copolymerization process wherein a water-insoluble thiocarbonated or thiocarbamated substrate is exposed to high-frequency microwave energy in the presence of at least one ethylenically unsaturated monomer and a perioxidic free radical initiator.Type: GrantFiled: February 2, 1971Date of Patent: January 18, 1977Assignee: Scott Paper CompanyInventor: W. James Brickman
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Patent number: 3997515Abstract: Flame retardant, shaped materials comprising a vinyl polymer of crosslinked structure containing in its vinyl units 40 mole-% or more based on the polymer of COOH groups which have been partly converted to COOM (M: a mono- to tri-valent metal) groups, the COOM group content of said polymer being preferably 0.5 to 40 % by weight in terms of metal content.Type: GrantFiled: May 10, 1974Date of Patent: December 14, 1976Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Kenzo Kosaka, Haruo Miyamoto, Osamu Nakagawa, Susumu Maekawa, Tokuhisa Miyamatsu, Yasuhiko Hiromoto
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Patent number: 3975154Abstract: This invention relates to the preparation and use of durable press fabrics with strong acid grafts. The preparation is accomplished by the incorporation of a reactive hydroxyalkyl sulfonic or phosphinic acid in a crosslinking finishing system. As a consequence of this, durable press fabrics are produced with sulfonic or phosphinic acid grafts. Because of these strong acid grafts, these fabrics show improved moisture regain properties, can be dyed with basic dyes, can be whitened with basic optical brighteners and have ion exchange properties for metallic cations.Type: GrantFiled: June 9, 1975Date of Patent: August 17, 1976Assignee: The United States of America as represented by the Secretary of AgricultureInventors: Robert J. Harper, Jr., Gloria A. Gautreaux, Joseph S. Bruno