Textile Or Cellulosic Base Patents (Class 427/381)
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Patent number: 4176108Abstract: An improved latex binder for nonwoven webs comprising an acrylate- and/or vinyl acetate-based copolymer containing 0.1-10% by weight of 2-hydroxyethyl or 2-hydroxypropyl acrylate or methacrylate is prepared by employing in combination with the copolymer 0.2-10% by weight, on latex solids, of anionic surfactant and 0.3-15% by weight, on latex solids, of nonionic surfactant in selected relative proportions and by adding to the copolymer 1-40% by weight, on latex solids, of a water-soluble salt. The resultant binder is characterized by being stable to coagulation at room temperature but coagulable at a temperature between 40.degree. and 85.degree. C. In the preparation of nonwoven fiber material, a nonwoven web is impregnated with the copolymer latex binder, heated to a temperature of within 40.degree. and 85.degree. C. sufficient to coagulate the binder within the web and thus prevent migration, and finally dried to form a chemically bonded, nonwoven fiber material in sheet form.Type: GrantFiled: April 17, 1978Date of Patent: November 27, 1979Assignee: National Starch and Chemical CorporationInventors: Ronald J. Caimi, Walter F. Schlauch
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Patent number: 4176210Abstract: Decorative sheet-type covering material having both PVC and polyurethane wear layers is made by first forming a sheet of gelled foamable PVC plastisol or organosol on a substrate. A layer of nonfoamable PVC plastisol or organosol is then applied to the gelled foamable layer and gelled, but not cured. A layer of polyurethane is then applied to the gelled nonfoamable layer and the entire sheet is heated to a temperature sufficient to decompose the blowing agent in the foamable layer and cure both of the PVC layers and the polyurethane layer.Type: GrantFiled: April 12, 1977Date of Patent: November 27, 1979Assignee: GAF CorporationInventor: David B. Skinner
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Patent number: 4174418Abstract: Bacteriostatic, water-insoluble complexes of zirconyl acetate with inorganic peroxides are disclosed. Peroxides operative in forming these complexes are hydrogen peroxide, alkali metal perborates and alkali metal peroxydiphosphates. Processes for in situ formation and deposition of the insoluble complexes on the surfaces of cellulosic textiles are described. The textile finishes so produced inhibit the growth and spreading of odor- and infection-producing gram-negative and gram-positive bacteria on the treated textiles. The antibacterial activity imparted to the textiles is durable to repeated laundering.Type: GrantFiled: May 31, 1978Date of Patent: November 13, 1979Assignee: The United States of America as represented by the Secretary of AgricultureInventors: Clark M. Welch, Gary F. Danna, Tyrone L. Vigo
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Patent number: 4171387Abstract: A cellulosic substrate is coated by applying a polyurethane adhesive thereto, drying the adhesive, coating the adhesive with an ultraviolet curable solid polyacrylate resin and then curing the composite structure with ultraviolet rays.Type: GrantFiled: February 6, 1978Date of Patent: October 16, 1979Assignee: Champion International CorporationInventors: Ozzie Fogle, James Cooley
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Patent number: 4166145Abstract: A carbon-organic resin composite which has been initially shaped as by molding and in which the resin binder has been at least partially precured is transformed into an all-carbon composite and substantially densified by a continuous process in which the composite is continuously heated at different temperatures and subjected to increased pressure. Initially, the composite is heated at a first rate to a temperature on the order of 1000.degree. F., the first rate and the increased pressure applied to the composite being selected to substantially decompose the resin rapidly but without delamination or other damage to the composite. Heating is then continued at a second rate until the composite undergoes substantial softening and becomes plastic, typically at a temperature in excess of 3500.degree. F. Thereafter the composite is maintained at a high temperature, typically in excess of 5000.degree. F.Type: GrantFiled: February 28, 1977Date of Patent: August 28, 1979Assignee: HitcoInventors: Donald M. Hatch, Richard J. Larsen
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Patent number: 4161456Abstract: A base material for artificial leather having a water vapor absorption capacity of from 2 to 8% by weight, based on a fibre fleece impregnated with a rubber latex mixture containing a heat sensitizer, a quick-acting vulcanization accelerator and, as expanding agent, a silicone oil emulsion or an inert, emulsifiable substance which is insoluble both in the rubber and the other constituents of the latex. After the impregnation of the fibre fleece, the latex mixture is coagulated by heat, vulcanized and then dried.Type: GrantFiled: February 24, 1978Date of Patent: July 17, 1979Assignee: Bayer AktiengesellschaftInventors: Gustav Sinn, Martin Matner, Hermann J. Bross
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Patent number: 4160686Abstract: The present disclosure is concerned with an improved method of reverse coating textile sheets with storage stable polyurethane top and adhesive coats which are formulated to have improved resistance to deformation under heat and pressure. At least one of the coats is formulated from a diisocyanate, a high molecular weight dihydroxy compound and a mixture of at least one low molecular weight diol with a low molecular weight monoalkanolamine. The coatings are applied in the usual reverse coating manner, i.e. the top coat is applied to a release substrate from solution; dried; the adhesive coat is applied from solution onto the dried top coat; and the textile substrate is laminated to the adhesive coat.Type: GrantFiled: October 3, 1977Date of Patent: July 10, 1979Assignee: Bayer AktiengesellschaftInventors: Georg Niederdellmann, Bernd Quiring, Wilhelm Thoma
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Patent number: 4158077Abstract: A process for rendering synthetic materials, of synthetic fibers or mixtures of the same flame resistant, which entails employing water insoluble flame retardant agents which are treated as colorless pigments, reduced to extremely finely divided condition, suspended in aqueous medium and applied as such or as part of a dispersed dye paste to the fabric, dried and set in place.Type: GrantFiled: May 17, 1977Date of Patent: June 12, 1979Assignee: White Chemical CorporationInventor: Vladimir Mischutin
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Patent number: 4151316Abstract: Polyethylene terephthalate fiber-containing fabric is flameproofed by application of an aqueous suspension of finely divided particles consisting essentially of octagonal hexabromide formed by the incomplete bromination of cis, trans, trans cyclododecatriene to provide a mixture having a melting point in the range of 177.degree.-191.degree. C. determined by differential scanning colorimetry using a heating rate of 10.degree. C. per minute. The treated fabric is dried and then heated with the octagonal hexabromide particles thereon to a temperature above the melting point of the mixture, but not in excess of about 200.degree. C. for a period long enough to achieve adequate penetration (30 seconds), to cause the hexabromide particles to diffuse into the fibers of the fabric to maximize fire resistance and obtain proper fixation of the particles to the fabric in a manner providing durability to laundering with minimum damage to the fabric.Type: GrantFiled: November 9, 1977Date of Patent: April 24, 1979Assignee: Chas. S. Tanner Co.Inventor: Rene A. Eckert
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Patent number: 4148602Abstract: A water soluble product suitable for rendering textile materials flame retardant is produced by condensing (a) at least one hydroxymethyl phosphorus compound selected from the group consisting of(CH.sub.2 OH).sub.4 P--Y and (CH.sub.2 OH).sub.3 Pwith (b) about 0.33 to 3 times the molar amount of at least one substituted phosphoramide of the formulaPO(NR.sup.1 CH.sub.3)(NR.sup.2 CH.sub.3)(NR.sup.3 CH.sub.3)whereinR.sup.1 and R.sup.2 each independently is H or CH.sub.2 OH,R.sup.3 is H, CH.sub.2 OH, CH.sub.3 or [PO(NR.sup.1 CH.sub.3)NCH.sub.3 ]--.sub.1`R.sup.2, andY is an equivalent amount of at least one anion of an acid, such as chloride, bromide, carbonate, nitrate, sulfate, phosphate or carboxylate.Advantageously, the hydroxymethyl phosphorus compound is tetrakis(hydroxymethyl)phosphonium chloride or tris(hydroxymethyl)-phosphine, and is present in about 1 to 3 times the phosphoramide wherein preferably R.sup.1 and R.sup.2 are hydrogen and R.sup.3 is hydrogen or PO(NHCH.sub.3).sub.2.Type: GrantFiled: February 10, 1977Date of Patent: April 10, 1979Assignee: LeBlanc Research CorporationInventors: Destin A. LeBlanc, Robert B. LeBlanc
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Patent number: 4143198Abstract: A base material for artificial leather having a water vapor absorption capacity of from 2 to 8% by weight, based on a fibre fleece impregnated with a rubber latex mixture containing a heat sensitizer, a quick-acting vulcanization accelerator and, as expanding agent, a silicone oil emulsion or an inert, emulsifiable substance which is insoluble both in the rubber and the other constituents of the latex. After the impregnation of the fibre fleece, the latex mixture is coagulated by heat, vulcanized and then dried.Type: GrantFiled: August 5, 1977Date of Patent: March 6, 1979Assignee: Bayer AktiengesellschaftInventors: Gustav Sinn, Martin Matner, Hermann J. Bross
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Patent number: 4139357Abstract: Sized fiber glass fabric is cleaned and desized by contacting the sized fabric with an oxidizing agent under alkaline conditions followed by treatment with an organic solvent.Type: GrantFiled: December 8, 1977Date of Patent: February 13, 1979Assignee: PPG Industries, Inc.Inventors: George L. Brodmann, Dudley K. Moses
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Patent number: 4138518Abstract: A textile composite is formed utilizing a latex composition formulated with granular starch dispersed uniformly throughout. The composite is subjected to suitable heating or drying conditions to gelatinize substantially all the starch particles thereby imparting to the composite improved cohesiveness.Type: GrantFiled: December 6, 1977Date of Patent: February 6, 1979Assignee: Reichhold Chemicals, Inc.Inventors: Emil G. Sammak, Douglas J. Ladish, John J. Martin, Claire D. LeClaire
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Patent number: 4136037Abstract: A water soluble product suitable for rendering textile materials flame retardant is produced by condensing (a) at least one hydroxymethyl phosphorus compound selected from the group consisting of(CH.sub.2 OH).sub.4 P--Y and (CH.sub.2 OH).sub.3 Pwith (b) about 0.33 to 3 times the molar amount of at least one substituted phosphoramide of the formulaPO(NR.sup.1 CH.sub.3)(NR.sup.2 CH.sub.3)(NR.sup.3 CH.sub.3)whereinR.sup.1 and R.sup.2 each independently is H or CH.sub.2 OH,R.sup.3 is H, CH.sub.2 OH, CH.sub.3 or [PO(NR.sup.1 CH.sub.3)NCH.sub.3 ]-.sub.1-2 R.sup.2, andY is an equivalent amount of at least one anion of an acid, such as chloride, bromide, carbonate, nitrate, sulfate, phosphate or carboxylate.Advantageously, the hydroxymethyl phosphorus compound is tetrakis(hydroxymethyl)phosphonium chloride or tris(hydroxymethyl)phosphine, and is present in about 1 to 3 times the phosphoramide wherein preferably R.sup.1 and R.sup.2 are hydrogen and R.sup.3 is hydrogen or PO(NHCH.sub.3).sub.2.Type: GrantFiled: January 27, 1978Date of Patent: January 23, 1979Inventors: Destin A. LeBlanc, Robert B. LeBlanc
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Patent number: 4119746Abstract: Porous, fibrous materials such as non-woven polyester or polypropylene web materials, cotton web, paper and other materials are saturated with a storage stable one-package latex composition. The latex composition is modified with a temperature sensitive cross-linking agent and neutralizing agents. The latex composition is tailored such that a fibrous material may be impregnated and dried at controlled temperature whereby a thermoplastic resin saturant web intermediate stock material having thermoset properties is produced. The cross-linking system in the latex composition is later activated in a specific manufacturing process at heat forming and molding temperatures to obtain a specifically shaped manufacture of desired rigidity and flexibility.Type: GrantFiled: June 14, 1977Date of Patent: October 10, 1978Assignee: W. R. Grace & Co.Inventor: Merrill Bleyle
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Patent number: 4098629Abstract: A process for making composite contoured sound insulating panels of a type suitable for use adjacent to structural panels of automobile vehicle bodies, which in accordance with one embodiment of the present invention, comprises forming a fibrous pad incorporating controlled amounts of heat curable thermosetting binder and a heat softenable thermoplastic binder distributed in a controlled manner therethrough.Type: GrantFiled: May 26, 1977Date of Patent: July 4, 1978Assignee: Allen Industries, Inc.Inventor: Edward G. Goldstone
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Patent number: 4080480Abstract: 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: GrantFiled: June 9, 1976Date of Patent: March 21, 1978Assignee: The United States of America as represented by the Secretary of AgricultureInventors: Robert M. Reinhardt, Russell M. H. Kullman, Donald J. Daigle
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Patent number: 4055689Abstract: Process for flameproofing organic material, which comprises applying to said material a preparation containing a phosphate of the formula ##STR1## wherein X is phenyl or substituted phenyl, R.sub.1 and R.sub.2 each is bromoalkylene, then drying the material and subjecting it to heat treatment.Type: GrantFiled: January 12, 1976Date of Patent: October 25, 1977Assignee: Ciba-Geigy CorporationInventors: Hermann Nachbur, Arthur Maeder
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Patent number: 4053670Abstract: A process for the manufacture of non-woven fabric which comprises the following steps:A. impregnating a web of non-woven fibers with a chemical binder capable of thermal polymerization and with a curing agent for the binder,B. coagulating but not drying the binder, to form a non-woven fabric,C. coating one face of the fabric with a paste or foam of a waterproofing agent,D. drying the impregnated and coated fabric andE. heat embossing the non-coated face of the fabric; non-woven fabric whenever made by the above process.Type: GrantFiled: October 31, 1975Date of Patent: October 11, 1977Assignee: Lantor International LimitedInventor: Roger LePoutre
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Patent number: 4047959Abstract: Stable nonionic water emulsions of the flame retardant (2,3-dibromopropyl)phosphate are disclosed and claimed. The water emulsions are achieved by use of a ketone solvent and one or more nonionics from selected groups which when used have a sole or combined HLB in the range of about 10 to 14. The stable emulsions are compatible with all water repellents including the cationic fluorochemical oil and water repellents.Type: GrantFiled: February 9, 1976Date of Patent: September 13, 1977Assignee: Pennwalt CorporationInventor: George Paul Guzzardo
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Patent number: 4045601Abstract: Woven fiber glass fabric is simultaneously resin finished and dyed in a rapid process which impregnates the fabric with a liquid finishing media of low surface tension and high volatility containing dyes and dissolved resins in a halogenated hydrocarbon solvent.Type: GrantFiled: October 4, 1976Date of Patent: August 30, 1977Assignee: PPG Industries, Inc.Inventors: George L. Brodmann, Carl Nelson Schlatter
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Patent number: 4045173Abstract: Hydroxymethylphosphorus compounds are insolubilized in and reacted with cellulosic textiles by combination with poly(ethyleneureas) and poly(N-methylolethyleneureas) to impart durable flame retardancy to the textile. The poly(ethyleneurea) or poly(N-methylolethyleneurea) may be employed as the sole coreactant for the hydroxymethyl phosphorus compound or as a supplement to urea, N-methylolureas, and the like.Type: GrantFiled: November 18, 1975Date of Patent: August 30, 1977Assignee: The United States of America as represented by the Secretary of AgricultureInventor: Stanley P. Rowland
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Patent number: 4039710Abstract: A method for preparing a novel compound, i.e. a resinous material, characterized in that an epoxy compound is allowed to react with ammonium salt or a metal salt (for example, lithium salt, sodium salt, potassium salt, magnesium salt, etc.) of polyglutamic acid. The resulting reaction product is useful in a method for treating shaped materials especially polyester textiles. In this method the shaped materials are treated with the novel resinous material to improve the appearance and handling characteristics thereof. A process for providing a wooly finish on polyester textiles is characterized by treating textiles (including polyester knittings and mixed spun fabrics or knittings or mixed woven fabrics or knittings) in a bath of an emulsified mixed solution of an epoxy compound and a metal salt of polyglutamic acid containing a catalyst, and carrying out a heat-treatment of the resulted textiles after pre-drying.Type: GrantFiled: February 28, 1975Date of Patent: August 2, 1977Assignee: Kyowa Hakko Kogyo Co., Ltd.Inventors: Yasuo Fujimoto, Keizo Tatsukawa, Koichi Nagaoka, Masayuki Nagumo, Kiichi Nagai
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Patent number: 4026847Abstract: Method of partially converting wood into plastic material by impregnating the wood with a phenol and substances which form a reaction product which forms a prepolymer with the lignin in the wood, heating said impregnated wood to form said reaction product and pre-polymer, and thus applying further heat and pressure to said impregnated wood to form a copolymer between said pre-polymer and the lignin in said wood.Type: GrantFiled: May 13, 1975Date of Patent: May 31, 1977Assignee: Universidad Tecnia Federico Santa MariaInventors: Rodolfo Ripa, Alberto Garcia
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Patent number: 4024305Abstract: A method for producing a resin rich epoxy-glass prepreg and laminate wherein the epoxy-glass prepreg is given a first pass through an impregnation tower and impregnated with dicyandiamide cured brominated bisphenol type epoxy modified with a polyfunctional additive and advanced to 80-85% of complete cure. The prepreg is given a second pass through the tower and given a dip coating of, for example, brominated bisphenol A which is advanced to 80-85% of complete cure. The resulting prepreg serves as the outer sheet of a multi-layer printed circuit board and it has a resin rich surface necessary for chemical roughening and subsequent additive plating.Type: GrantFiled: June 4, 1975Date of Patent: May 17, 1977Assignee: International Business Machines CorporationInventors: Warren Alan Alpaugh, William Joseph Summa
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Patent number: 4022942Abstract: The invention relates to high ortho phenolic resole resins and varnishes. The phenolic resole resins are produced by reacting under acidic conditions formaldehyde with a phenol in the presence of a divalent electropositive metal ion. The resulting novel resole is then dissolved in organic solvent. The solutions are useful as varnishes in the manufacture of impregnated sheets, laminates and other reinforced plastics.Type: GrantFiled: February 17, 1972Date of Patent: May 10, 1977Assignee: Monsanto CompanyInventors: George J. Anderson, Harry M. Culbertson
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Patent number: 4020224Abstract: Mixtures comprising compounds of the formula ##STR1## wherein A is either NH.sub.2 or N=P(NH.sub.2).sub.3, provided at least one A is N=P(NH.sub.2).sub.3, have been found to be good flame-retardants for material made from cotton or polyester-cotton having about 30 to 70% by weight cotton. Conveniently the material can be treated with an aqueous solution containing a sufficient amount of said mixtures and the material dried to make the material self extinguishing. Then the treated and dried material is cured at a sufficient temperature to bond said compounds to the material. Alternatively and usually preferably the drying and curing can be accomplished as a single operation. The treatment solution can additionally contain auxiliary treatment agents to make the material more durable to washing.Type: GrantFiled: January 16, 1976Date of Patent: April 26, 1977Assignee: Monsanto Research CorporationInventor: Albert Y. Garner
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Patent number: 4020262Abstract: A water soluble product suitable for rendering textile materials flame retardant is produced by condensing (a) at least one hydroxymethyl phosphorus compound selected from the group consisting of(CH.sub.2 OH).sub.4 P--Y and (CH.sub.2 OH).sub.3 Pwith (b) about 0.33 to 3 times the molar amount of at least one substituted phosphoramide of the formulaPO(NR.sup.1 CH.sub.3)(NR.sup.2 CH.sub.3)(NR.sup.3 CH.sub.3)whereinR.sup.1 and R.sup.2 each independently is H or CH.sub.2 OH,R.sup.3 is H, CH.sub.2 OH or CH.sub.3, andY is an equivalent amount of at least one anion of an acid, such as chloride, bromide, carbonate, nitrate, sulfate, phosphate or carboxylate.Advantageously, the hydroxymethyl phosphorus compound is tetrakis(hydroxymethyl)phosphonium chloride or tris(hydroxymethyl)phosphine, and is present in about 1 to 3 times the phosphoramide which is preferably tris(N',N",N'"-methyl)phosphoramide [OP(NHCH.sub.3).sub.3 ].Type: GrantFiled: February 24, 1975Date of Patent: April 26, 1977Assignee: LeBlanc Research CorporationInventors: Destin A. LeBlanc, Robert Bruce LeBlanc
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Patent number: 4018957Abstract: Sheet-type covering material having a decorative fabric base with a wear layer over the face of the fabric and a resilient backing adhered to the back of the fabric is prepared by first forming a plastic wear layer adhered to the face of a sheet of decorative fabric and then forming a resilient backing layer on the back of the fabric sheet. Preferred embodiments include the use of mechanically foamed plastic as the resilient backing layer and a conventional wear layer of polyvinyl chloride or polyurethane. The fabric is preferably textured so as to impart a textured surface to the wear layer.Type: GrantFiled: April 1, 1975Date of Patent: April 19, 1977Assignee: GAF CorporationInventors: Jesse Werner, Gordon R. Rugg
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Patent number: 4018950Abstract: Salts of 1,3,5-triaza-7-phosphaadamantane can be utilized as catalysts for finishing cellulose-containing textile materials with methylol amide crosslinking agents to give products with improved wrinkle resistance and durable press properties. Inorganic, organic, and sulfonic acid salts, and mixed salt complexes of this new tricyclic phosphorus-containing compound provide effective catalysis in the chemical reactions needed for these finishing treatments. Salts of the corresponding phosphorus oxide, 1,3,5-triaza-7-phosphaadamantane-7-oxide, provided even stronger catalysis in similar treatments.Type: GrantFiled: September 19, 1975Date of Patent: April 19, 1977Assignee: The United States of America as represented by the Secretary of AgricultureInventors: Robert M. Reinhardt, Donald J. Daigle, Russell M. H. Kullman
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Patent number: 4016335Abstract: A process for preparing stable aqueous solutions of a water-soluble urea-formaldehyde-glyoxal condensation product in which urea, glyoxal and formaldehyde are reacted under very slightly acidic conditions of pH and at a temperature of from 40.degree. to 90.degree. C., further reacted under more acidic conditions of pH and at a temperature of from 40.degree. to 90.degree. C., and then adjusted to very slightly acidic conditions of pH.Type: GrantFiled: February 7, 1975Date of Patent: April 5, 1977Assignee: American Cyanamid CompanyInventor: Tsai Hsiang Chao
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Patent number: 4008345Abstract: A process for fire-proofing treatment of shaped articles of aromatic polyamides which comprises contacting a shaped article of an aromatic polyamide with an aqueous solution of a phosphorus-containing inorganic compound free from halogen and sulfur, drying it and then post heat-treating it; characterized in that said shaped article is contacted with an aqueous solution of a treating compound selected from the group consisting of halogen- and sulfur-free, phosphorus-containing inorganic acids and their ammonium, amine and urea salts in a concentration of about 2 to about 30% by weight, dried at a temperature of not more than about 150.degree. C., and then post heat-treated at a temperature of about 300.degree. C. to about 450.degree. C.Type: GrantFiled: September 24, 1974Date of Patent: February 15, 1977Assignee: Teijin LimitedInventors: Yoshihiko Imanaka, Hiroshi Uchiyama
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Patent number: 4006273Abstract: Raised prints and graphic designs on fabrics which can safely and effectively be drycleaned and washed are provided by formulating a cross-linkable polymer printing medium with about 1 to 45 weight percent thermally expandable microspheres, applying said medium to a fabric, heating at a temperature of about 180.degree. to 250.degree. F to expand the microspheres and cross-link the polymer, and then curing for about 1 minute at a temperature of about 300.degree. F.Type: GrantFiled: February 3, 1975Date of Patent: February 1, 1977Assignee: Pratt & Lambert, Inc.Inventors: Leon E. Wolinski, Arthur R. Endress, David W. Teloh
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Patent number: 4006274Abstract: 2,4,6-Tris(carbamoylmethylamino)-1,3,5-s-triazine, abbreviated TCMT, is prepared by the reaction of 2,4,6-tris(carbethoxymethylamino)-1,3,5-s-triazine with ammonia. The methylol derivative of TCMT is prepared and applied to cotton textiles and blends of cotton and polyester to impart wrinkle recovery thereto.Type: GrantFiled: September 19, 1975Date of Patent: February 1, 1977Assignee: The United States of America as represented by the Secretary of AgricultureInventors: Leon H. Chance, Judy D. Timpa, George L. Drake, Jr.
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Patent number: 4002783Abstract: The present disclosure is directed to a process for the production of a textile material length containing filling or bonding agents which are used in the production of synthetic leather which comprises impregnating the textile material with a thermo-sensibilized bonding or filling agent, heating said impregnated bonding or filling agent contact-free to a temperature at which the bonding agent coagulated and subjecting the textile material to subsequent treatment steps.Type: GrantFiled: November 4, 1974Date of Patent: January 11, 1977Assignee: Vepa AGInventor: Heinz Fleissner
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Patent number: 3999941Abstract: The subject of the invention is a process for the manufacture of polycondensation products from hydroxymethylphosphonium compounds, characterized in that at least one anhydrous tetrakis-(hydroxymethyl)-phosphonium salt or tetrakis-(hydroxymethyl)-phosphonium hydroxide is condensed with itself in an anhydrous medium, optionally using an acid catalyst and optionally in the presence of at least one inert organic solvent, at 100.degree. to 150.degree. C, preferably 120.degree. to 150.degree. C, the condensation being continued until 0.5 to 1.5 mols of water have been eliminated per 1 mol of phosphonium compound employed, free hydroxyl groups are, if appropriate, at least partially etherified with at least one alkanol with 1 to 4 carbon atoms, and that the salt of the polycondensation products are, where relevant, converted into the corresponding hydroxides.The polycondensation products are used for the flameproofing of organic fibre material, especially textiles.Type: GrantFiled: May 13, 1975Date of Patent: December 28, 1976Assignee: Ciba-Geigy AGInventors: Hermann Nachbur, Joerg Kern, Arthur Maeder
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Patent number: 3998981Abstract: An endless tire-mounted anti-skid belt is produced by spreading an endless fibrous mesh to the diameter of the vehicle tire on which the belt is to be mounted, impregnating the spread endless mesh with a hot-vulcanizable elastomer dissolved in a solvent, drying the impregnated spread endless mesh until at least 80% of the solvent has been removed, repeating the impregnation and drying steps several times until a desired thickness of elastomer has been deposited on the spread endless mesh, and curing the elastomer by vulcanization in an autoclave under hot steam.Type: GrantFiled: August 8, 1975Date of Patent: December 21, 1976Assignee: Wolkro AktiengesellschaftInventors: Lieselotte Burkhardt, Wilhelm Schuster, Walter Stuck
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Patent number: 3979532Abstract: A process for the manufacture of artificial leather which has a napped, suede or nubuck surface finish by contacting a natural, synthetic of semi-synthetic backing member with a polymeric system comprising a mixture of a heat-reactive latex and a carboxylated latex and which contains at least one dyestuff. Each of the latices is cross-linked in sequence while the contacted backing member is dried. The migration of non-polymeric components in the system of latices is suppressed during drying. The backing so treated is mechanically altered on the grain side of the backing member to provide an irregular leather-like surface thereto.Type: GrantFiled: August 30, 1973Date of Patent: September 7, 1976Assignee: Statni vyzkumny ustav kozedelnyInventors: Eduard Muck, Josef Horak, Jaroslav Strachota, deceased, Jiri Boleslav, Lubomir Grygera, Ladislav Bogdanovicz, Otto Hvezda
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Patent number: 3976818Abstract: The product of the reaction of tetrakis(hydroxymethyl)phosphonium salts and primary 1,1-dihydroperfluoroalkylamines, when applied from aqueous emulsions to which basic substances have been added, renders textiles repellent to oil and water and improves their anti-stain properties.Type: GrantFiled: July 18, 1972Date of Patent: August 24, 1976Assignee: The United States of America as represented by the Secretary of AgricultureInventors: William J. Connick, Jr., Samuel E. Ellzey, Jr.
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Patent number: 3974318Abstract: A method for fire retarding and preserving wood products, paper, cardboard, boxboard, cloth and other porous materials, having a plurality of internal voids, in which a water soluble silicate composition is applied to those porous materials, penetrating into the voids, and the material dried. Thereafter, a water soluble metallic salt composition is applied, also penetrating into the voids and reacting in situ to form a water insoluble metallic silicate with a high degree of water of hydration disposed throughout the voids.Type: GrantFiled: April 29, 1974Date of Patent: August 10, 1976Inventor: Allen G. Lilla
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Patent number: 3969551Abstract: The invention is a process for manufacturing a sculptured decorative finish on a textile fabric by applying an aqueous polyurethane latex in a pattern to the fabric and drying the fabric; and the sculptured fabric obtained by the process.Type: GrantFiled: July 5, 1974Date of Patent: July 13, 1976Assignee: American Cyanamid CompanyInventor: Robert E. Ellsworth
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Patent number: 3961107Abstract: This invention relates to a fiber fleece based on synthetic fibers and containing a polymeric organic reinforcing material, and having, at a proportion of polymeric elastic reinforcing material of at least 10 per cent by weight and not more than 80 per cent by weight, calculated on the total weight of a base fleece having a density between 0.1 and 0.28 g/cm.sup.3, a tensile strength of at least 0.01 kg/mm.sup.2, a tear propagation resistance of at least 7 kg/mm (according to IUP 8), and a tensile stress or not more than 0.03 kg/mm.sup.2, measured in a tensile elongation test at an elongation of 10 per cent.Type: GrantFiled: November 11, 1974Date of Patent: June 1, 1976Inventors: Klaus-Dieter Hammer, Herbert Porrmann, Ludwig Klenk
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Patent number: 3959526Abstract: An improvement in a process for preparing a high barrier, heat-sealable packaging material. A flexible base sheet carrying at least a one side copolymer high barrier coating applied from a solvent solution receives a second copolymer coating having optimum heat sealing properties from a dilute solvent coating system thereby yielding, when finally dried, a double copolymer distribution on the base sheet surface having a low level of total retained solvents, particularly high boiling point solvents.Type: GrantFiled: December 20, 1974Date of Patent: May 25, 1976Assignee: E. I. Du Pont de Nemours and CompanyInventor: Isadore Swerlick
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Patent number: 3956529Abstract: A method of finishing cloth-covered aircraft wings and fuselage. The cloth, cotton or polyester cloth of the type made from monofilaments of the condensation product of ethylene glycol with terephthalic acid or dimethyl phthalate is, after application thereof onto the airframe, coated with a layer of latex and dried, then coated with a second, or intermediate, layer of different coating and dried, and then coated with a decorative coating material. The use of latex as a first coat on the cloth results in substantial savings in labor and time and results in a coated fabric of superior flexibility integrity and durability.Type: GrantFiled: October 25, 1973Date of Patent: May 11, 1976Assignees: Cooper Aviation Industries, Inc., Hydrosol, Inc.Inventor: Earl H. Addison
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Patent number: 3947613Abstract: Knitted cotton fabrics in tubular form are impregnated to 20 to 35% wet add-on of crosslinking agent by any of several techniques including sprinkling, spraying, printing, or slop padding the solution of crosslinking agent to the outer surfaces of the fabric tube, or transferring the solution of crosslinking agent from impregnated material to the outer surfaces of the fabric tube, followed by a mechanical agitation step wherein the impregnated tubes are mechanically agitated at elevated temperatures under closed conditions, thereby eliminating agent migration toward fabric surfaces during drying of the cotton containing knitted fabrics in chemical treatments for smooth-drying properties and dimensional stabilization.Type: GrantFiled: August 7, 1974Date of Patent: March 30, 1976Assignee: The United States of America as represented by the Secretary of AgricultureInventors: Bethlehem K. Andrews, John G. Frick, Jr., Wilson A. Reeves
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Patent number: 3944688Abstract: A fire-resistant, water- and oil-repellent nonwoven fabric is prepared using a fire-retardant, surfactant-free adhesive/binder containing halogen and/or phosphorus additive, followed by treatment with a fluorochemical repellent agent.Type: GrantFiled: October 23, 1973Date of Patent: March 16, 1976Assignee: Pennwalt CorporationInventor: Charles Edward Inman
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Patent number: 3941638Abstract: A method for constructing a relief sculptured sound grill comprising the steps of soaking a strip of flexible material in a starch solution and thereafter securing the flexible material between a male and female mold member so that the mold members form the desired relief sculpture on the flexible material. The strip of material is then dried and paint is applied to the relief sculpture and dried thereby permanently forming the relief sculpture on the strip of material. A frame is then secured around the periphery of the strip of material and the mold members are removed so that a hardener may be applied to the entire strip of material. The strip of material with the attached frame is then dried thus completing the relief sculptured sound grill of the present invention.Type: GrantFiled: September 18, 1974Date of Patent: March 2, 1976Inventors: Reginald Patrick Horky, Scott Octave Frost
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Patent number: 3937612Abstract: Dialkylphosphonoacetylurea compounds which contain hydroxymethyl groups or alkoxymethyl groups and their preparation, as well as their use for the flameproofing of cellulose-containing materials.Type: GrantFiled: December 26, 1974Date of Patent: February 10, 1976Assignee: Henkel & Cie GmbHInventors: Johann Schwarzer, Peter Meins, Kurt Voparil