Natural Cellulose Base Patents (Class 427/392)
  • 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: 4273552
    Abstract: A process for the pretreatment of cellulose fibers which are printed according to the thermotransfer printing process, which comprises impregnating the fiber material with a solution or dispersion containing a compound of the formula ##STR1## in which x is 2 or 3, A represents--if x=2--a group of the formula ##STR2## or -if x=3 --represents a group of the formula ##STR3## W is a group of the formula --CH.sub.2 --or ##STR4## R is hydrogen or methyl, m is a number of from 1 to 30, preferably from 4 to 11, and n is a number of from 1 to 30, preferably from 1 to 10, as well as a polymerization catalyst, and steaming and drying the material.
    Type: Grant
    Filed: September 12, 1979
    Date of Patent: June 16, 1981
    Assignee: Hoechst Aktiengesellschaft
    Inventor: Ehrenfried Nischwitz
  • Patent number: 4268546
    Abstract: Non-woven fabrics are prepared from synthetic fibers by impregnating the fibers with a liquid binder system containing a polymer of from 35 to 60 weight percent of a hard monomer, 0 to 45 weight percent of butadiene or isoprene, 10 to 50 weight percent of an acrylate having from 1 to 8 carbon atoms in the ester portion and 1 to 5 weight percent of an ethylenically unsaturated mono- or dicarboxylic acid.
    Type: Grant
    Filed: June 25, 1980
    Date of Patent: May 19, 1981
    Assignee: The Dow Chemical Company
    Inventors: James E. Schwartz, Kent B. McReynolds
  • Patent number: 4261758
    Abstract: A room temperature vulcanizable silicone rubber composition with sag-control wherein the base material or mixture of ingredients for forming the composition comprises a silanol end-stopped diorganopolysiloxane polymer, at least 3 parts of a fumed silica filler and as the sag-control ingredient, from 0.03 to 2.0 parts of a polyether. As a work-like extending additive in the case of a two-part room temperature vulcanizable silicone rubber composition, there may be added to the basic ingredients of the composition a low viscosity silanol end-stopped polysiloxane.
    Type: Grant
    Filed: April 30, 1979
    Date of Patent: April 14, 1981
    Assignee: General Electric Company
    Inventors: John H. Wright, Warren R. Lampe, Alfred H. Smith, Jr.
  • Patent number: 4262107
    Abstract: A silicone rubber composition with a good shelf life and fast curing at elevated temperatures comprising a silanol end-stopped diorganopolysiloxane polymer, a silicone hydride and a rhodium complex catalyst in combination with an inhibitor compound selected from low molecular weight silanol end-stopped diorganopolysiloxanes, acetylenic compounds, olefinic carboxylic acid esters of aliphatic alcohols, alkenyl isocyanurates and mixtures of the above inhibitor compounds. The above compositions are especially suited as release coatings for plastic and cellulosic subtrates including paper.
    Type: Grant
    Filed: October 4, 1979
    Date of Patent: April 14, 1981
    Assignee: General Electric Company
    Inventor: Richard P. Eckberg
  • Patent number: 4242408
    Abstract: A non-woven flexible web having enhanced wet strength and easy disposability is prepared by adhering the fibrous elements of the web with a polymer of an unsaturated acid and an unsaturated water-insoluble monomer in a ratio wherein the polymer is insoluble at lower pH values and soluble at higher pH values.
    Type: Grant
    Filed: June 25, 1979
    Date of Patent: December 30, 1980
    Assignee: The Dow Chemical Company
    Inventors: Syamalarao Evani, William A. Foster
  • Patent number: 4233362
    Abstract: The specification discloses a polymer and the method of using the same to prepare articles of manufacture, the composition comprising a water-soluble salt of a polymer containing pendant groups derived from an unsaturated drying oil fatty acid hydroxyamide, carboxy groups, carboxy ester groups and optionally the residues of other unsaturated addition polymerizable monomers, the carboxy units being present in a critical amount and the polymer having a critical glass transition temperature, molecular weight and the like. Aqueous coating compositions are disclosed in which the soluble polymer is either the sole polymeric vehicle or is combined with a water-insoluble polymer latex.
    Type: Grant
    Filed: December 18, 1978
    Date of Patent: November 11, 1980
    Assignee: Rohm and Haas Company
    Inventors: Ronald W. Novak, Benjamin B. Kine
  • Patent number: 4199643
    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: November 3, 1977
    Date of Patent: April 22, 1980
    Assignee: Rohm and Haas Company
    Inventors: Dominic R. Falgiatore, William D. Emmons
  • Patent number: 4198462
    Abstract: The invention is a process for manufacturing low free-formaldehyde crease-proofing compositions for textiles and a process for treating the textile materials therewith.
    Type: Grant
    Filed: August 2, 1978
    Date of Patent: April 15, 1980
    Assignee: American Cyanamid Company
    Inventors: Carole M. Dixon, Edward B. Lawler
  • Patent number: 4194032
    Abstract: Flame resistance sufficient to enable cellulose containing materials to pass modern flammability standards has been imparted to these materials by application of an aqueous solution containing a methylol phosphorus compound followed by heat drying to about 15% or less moisture content, and finally by polymerizing the phosphorus material in the cellulose containing material by any one of several indirect aqueous ammonia curing techniques. The invention provides an improved process for flame proofing cellulosic materials which avoids the use of ammonia gas during the cure and which results in little or no loss in tensile strength or in an undesirable change in hand. Cellulosic textiles treated by this process retain their flame resistant properties after repeated laundering.
    Type: Grant
    Filed: March 5, 1975
    Date of Patent: March 18, 1980
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Robert J. Harper, Jr., Timothy A. Calamari, Jr., Sidney P. Schreiber
  • Patent number: 4191802
    Abstract: A composition comprising:(1) at least one (poly)carbamoyl or (poly)thiocarbamoyl sulphonate containing at least one radical of the formula ----NH.CO.SO.sub.3.sup..theta. X.sup.+ [Z]or--NH.CS.SO.sub.3.sup..theta. X.sup.+ [Y]wherein X.sup.+ represents a cationic group with one or more positive charges to maintain electrical neutrality in the sulphonate; and(2) at least one non-halogenated polymer selected from the following classes --A. polymers derived from the polymerization of ethylenically unsaturated monomers, andB. polymers having a backbone of carbon atoms and at least one ester, amide, ether, urethane, urea, sulphide, disulphide, thioamide, sulphone, or carbonate linkage.
    Type: Grant
    Filed: January 6, 1978
    Date of Patent: March 4, 1980
    Assignee: Commonwealth Scientific and Industrial Research Organization
    Inventors: Geoffrey B. Guise, Maxwell A. White
  • Patent number: 4184004
    Abstract: Organosilicone terpolymers containing a plurality of reactive epoxy groups and a plurality of polyoxyalkylene groups are employed as hydrophilic softening agents for natural and synthetic textile fabrics.
    Type: Grant
    Filed: April 21, 1978
    Date of Patent: January 15, 1980
    Assignee: Union Carbide Corporation
    Inventors: Arthur N. Pines, Gordon C. Johnson, Fannie L. Campbell
  • Patent number: 4176108
    Abstract: 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: Grant
    Filed: April 17, 1978
    Date of Patent: November 27, 1979
    Assignee: National Starch and Chemical Corporation
    Inventors: Ronald J. Caimi, Walter F. Schlauch
  • Patent number: 4171391
    Abstract: A method of preparing a composite sheet material having properties similar to leather is provided. At least a portion of a porous sheet material is impregnated with an aqueous ionic dispersion of a polyurethane polymer. The polyurethane polymer which is impregnated in the porous sheet is ionically coagulated from the dispersion. Preferably, both the ionic dispersing and coagulating media are removed from the impregnated sheet. The impregnant is then dried to form a composite sheet material.
    Type: Grant
    Filed: September 7, 1978
    Date of Patent: October 16, 1979
    Assignee: Wilmington Chemical Corporation
    Inventor: Gordon M. Parker
  • Patent number: 4152481
    Abstract: A method of improving the flame retardant characteristics of substrates by applying thereto an organobromosilicone fluid of the general formula (BrCH.sub.2).sub.3 CCH.sub.2 O(R.sub.2 SiO).sub.x CH.sub.2 C(CH.sub.2 Br).sub.3 wherein each R is selected from the group consisting of hydrocarbon radicals containing from 1 to 18 carbon atoms, fluorinated hydrocarbon radicals containing from 1 to 18 carbon atoms, chlorinated hydrocarbon radicals containing from 1 to 18 carbon atoms and cyanohydrocarbon radicals containing from 1 to 18 carbon atoms, and x has a value from 1 to 10, is disclosed.
    Type: Grant
    Filed: September 22, 1976
    Date of Patent: May 1, 1979
    Assignee: Dow Corning Corporation
    Inventor: Terence J. Swihart
  • Patent number: 4151327
    Abstract: Paper, cotton cloth, wood, fiberboard, and other cellulosic products are first treated with an organic base and then treated with a halosilane. This results in the formation of an amine/silane complex within the cellulose fibers as well as on the surface of the cellulosic product. This treatment imparts oil and water repellency, adhesive properties, and dimensional stability to cellulosic products.
    Type: Grant
    Filed: February 24, 1978
    Date of Patent: April 24, 1979
    Inventor: William R. Lawton
  • Patent number: 4133929
    Abstract: A cellulosic absorption material for the removal of heavy metal ions from fluids, which material contains at least one chelate-forming amino acid group which is bonded through the group of the formula ##STR1## to the cellulose portion wherein the carbonyl group is linked to the chelate-forming radical and the oxygen is linked to the cellulose portion.
    Type: Grant
    Filed: June 14, 1977
    Date of Patent: January 9, 1979
    Assignee: Ciba-Geigy Corporation
    Inventors: Quentin Bowes, Jaroslav Haase, Rudolf F. Wurster
  • Patent number: 4128675
    Abstract: An aqueous medium containing reactive polymers, the reactive groups being N-methylol and/or etherified N-methylol groups, preferably based on methylolated, etherified or not, unsaturated carboxylic acid amides, included by polymerization, the portion of said reactive monomers being preferably 2.5 to 20% by weight, related to the total weight of the polymers, is applied to textiles by impregnation or preferably by coating in the presence of silanes and/or siloxanes containing amino groups and organometallic compounds, preferably zinc soaps and/or dialkyl-tin dicarboxylates as hardening agents, and heated at elevated temperature. A waterproof and water-repellent finish is obtained, resistant to washing and dry cleaning.
    Type: Grant
    Filed: April 11, 1977
    Date of Patent: December 5, 1978
    Assignee: Ciba-Geigy Corporation
    Inventors: Erich Rossler, Hans Deiner, Bernhard Sandner, Hans Schilling
  • Patent number: 4119746
    Abstract: 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: Grant
    Filed: June 14, 1977
    Date of Patent: October 10, 1978
    Assignee: W. R. Grace & Co.
    Inventor: Merrill Bleyle
  • Patent number: 4113902
    Abstract: A process for rendering natural materials, synthetic materials and blend of same, flame retardant which entails treating said materials with an aqueous dispersion of a brominated aliphatic compound, said brominated compound being a solid at room temperature, substantially insoluble in water and having been reduced to a fine particle size, together in the same bath with an emulsion of a suitable adhesive polymeric binder, followed by drying and baking.
    Type: Grant
    Filed: December 17, 1976
    Date of Patent: September 12, 1978
    Assignee: White Chemical Corporation
    Inventor: Vladimir Mischutin
  • Patent number: 4112153
    Abstract: A method is provided for increasing the water-repellency of a normally water-wettable, bonded, non-woven fabric bearing a surfactant selected from the group consisting of non-ionic surfactants and anionic surfactants. The method comprises heating a selected region of the fabric to an elevated temperature at which the surfactant is unstable, and maintaining the region at the elevated temperature for a time period sufficient to denature the surfactant without damaging the fabric.
    Type: Grant
    Filed: April 4, 1977
    Date of Patent: September 5, 1978
    Assignee: Johnson & Johnson
    Inventors: George A. M. Butterworth, Frank Fillwalk
  • Patent number: 4112149
    Abstract: Disclosed is a method for converting a diaphragm electrolytic cell to a membrane electrolytic cell by using the standard diaphragm cell equipment and applying a membrane over top of a matting material upon the cathode surface. This method permits a manufacturer having diaphragm electrolytic cells to convert those cells to membrane electrolytic cells without significant capital expenditure to achieve the desirable characteristics of a membrane electrolytic cell.
    Type: Grant
    Filed: April 25, 1977
    Date of Patent: September 5, 1978
    Assignee: Diamond Shamrock Corporation
    Inventor: Andrew D. Babinsky
  • Patent number: 4092106
    Abstract: Cotton and cotton-blended fabrics are impregnated with an emulsion containing an N-methylolated urea resin, a Lewis-acid catalyst, an emulsifying agent, and softener in a water-chlorinated solvent formulation to impart improved durable press properties.
    Type: Grant
    Filed: September 22, 1976
    Date of Patent: May 30, 1978
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Ralph J. Berni, Ruth R. Benerito, Mary W. Pilkington
  • Patent number: 4092454
    Abstract: Nonwoven fabric having desirable water absorbency and excellent resistances to oils and solvents is obtained by use of pullulan and/or derivatives thereof as binder.
    Type: Grant
    Filed: May 27, 1976
    Date of Patent: May 30, 1978
    Assignees: Sumitomo Chemical Company, Limited, Hayashibara Biochemical Laboratories, Inc.
    Inventors: Masahiro Domoto, Kozo Tsuji
  • Patent number: 4020209
    Abstract: A coated triaxial fabric, a process for its preparation and a laminated article prepared therefrom are provided. The coated fabric comprises a triaxial fabric, such as glass or polyester fibers, having a polymeric material impregnating and coating the fabric in an amount sufficient to set the yarn courses of the fabric where they cross one another and to give such a coated fabric superior isotropic tear resistance and strength (substantially uniform in all directions) when compared to a similarly constructed coated fabric prepared from a conventional biaxial fabric or a conventional bias ply construction. The coated fabric can be bonded to substrates such as metals and polymeric films.
    Type: Grant
    Filed: April 2, 1975
    Date of Patent: April 26, 1977
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Edward Lung Yuan
  • Patent number: 4018647
    Abstract: A fiber web made by the wet method on a paper making machine is impregnated with a heat sensitized, foamed latex binder as the web passes through a screening area of the paper making machine.
    Type: Grant
    Filed: June 10, 1974
    Date of Patent: April 19, 1977
    Assignee: Chemische Industrie AKU-Goodrick B.V.
    Inventor: Popke Wietsma
  • Patent number: 4017462
    Abstract: Phosphorus- and nitrogen-containing polymers, solubilized by hydroxymethylphosphonium salts and formaldehyde, were allowed to react with phenol, alkyl substituted phenols, or halogen substituted phenols which contain one or more hydrogens ortho or para to the phenolic hydroxyl group to (a) prepare flame-resistant polymers and (b) prepare flame-, glow-, wrinkle-, and shrink-resistant woven and knit textiles which contain 25% or more cellulosic fibers.
    Type: Grant
    Filed: March 4, 1976
    Date of Patent: April 12, 1977
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Donald J. Daigle, Armand B. Pepperman, Jr., Sidney L. Vail
  • Patent number: 4013813
    Abstract: New aminoalkylphosphonic acid esters of the formula ##STR1## wherein R is H or alkyl of up to 4 carbon atoms,R.sub.1 is H or CH.sub.3,R.sub.2 is H, CH.sub.3 or --C(R.sub.1)(NHR.sub.3)P(O)OR.sub.2, andR.sub.3 is H,--C(R.sub.1)(R.sub.2)P(O)(OR).sub.2 or --CH.sub.2 CH.sub.2 NHC(R.sub.1)(R.sub.2)P(O)(OR).sub.2,are prepared from (RO).sub.2 P(O)H, NH.sub.3 or ethylene diamine and formaldehyde, glyoxal, acetaldehyde or acetone. These new compounds can be reacted with methylol phosphorus compounds of the formulaP(CH.sub.2 OH).sub.4 Y or P(CH.sub.2 OH).sub.3where Y is an equivalent amount of the anion of at least one acid, and optionally additionally with urea. The reacting molar ratio of the hydroxymethyl phosphorus compound to the aminoalkylphosphonic acid ester is up to about 6:1 and preferably between about 0.5:1 and 3:1.
    Type: Grant
    Filed: February 27, 1975
    Date of Patent: March 22, 1977
    Assignee: LeBlanc Research Corporation
    Inventors: Robert Bruce LeBlanc, James Henry Badger
  • Patent number: 4008353
    Abstract: Water swellable polyacrylate articles are made from a solution of the polyacrylate having an effective amount of a soluble crosslinking agent therein by heating and/or drying the solution. The polyacrylate solution is made from a polyacrylate by saponification and the crosslinking agent is then added.
    Type: Grant
    Filed: June 30, 1975
    Date of Patent: February 15, 1977
    Assignee: The Dow Chemical Company
    Inventors: James R. Gross, Russell T. McFadden
  • Patent number: 4006274
    Abstract: 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: Grant
    Filed: September 19, 1975
    Date of Patent: February 1, 1977
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Leon H. Chance, Judy D. Timpa, George L. Drake, Jr.
  • Patent number: 3995085
    Abstract: A new class of hybrid copolymers which confer improved spray rating, resistance to staining, particularly aqueous stains and improved resistance to crocking on surfaces is obtained from (I) fluoroaliphatic radical-containing component in combination with (II) hydrocarbyl radical-containing component together conferring controlled oleophobicity and hydrophobicity in air and (III) a balanced combination of hydrophilic components conferring oleophobicity in water.
    Type: Grant
    Filed: December 4, 1975
    Date of Patent: November 30, 1976
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Joseph Dana McCown
  • Patent number: 3989702
    Abstract: Mixtures comprising compounds of the formula ##EQU1## 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.
    Type: Grant
    Filed: July 22, 1974
    Date of Patent: November 2, 1976
    Assignee: Monsanto Research Corporation
    Inventor: Albert Y. Garner
  • Patent number: 3984594
    Abstract: A sized cellulosic fiber-containing yarn having an excellent weaving property and processing property is provided by sizing, in a non-aqueous medium, with a copolymer prepared by copolymerizing 20 to 80% by weight of at least one monomer selected from the group consisting of methyl methacrylate, styrene and acrylonitrile and 80 to 20% by weight of at least one monomer selected from the group consisting of acrylic esters of aliphatic alcohols having 1 to 8 carbon atoms and methacrylic esters of aliphatic alcohols having 4 to 8 carbon atoms, and removing the non-aqueous medium from the yarn, the copolymer having a glass transition temperature of 40.degree. to 80.degree.C and a Young's modulus of 1 .times. 10.sup.3 to 1 .times. 10.sup.4 kg/cm.sup.2.
    Type: Grant
    Filed: August 23, 1974
    Date of Patent: October 5, 1976
    Assignee: Kanebo, Ltd.
    Inventors: Junzi Sano, Kiyoshi Aoki, Syoso Makino
  • Patent number: 3984367
    Abstract: Durable crease and wrinkle resistance properties are permanently imparted to fabrics and garments by treating the same with a novel composition prepared by reacting a urea with a condensation product of an aldehyde, an amine and phosphoric acid under curing conditions.
    Type: Grant
    Filed: September 30, 1974
    Date of Patent: October 5, 1976
    Inventor: Glenn A. Pearson
  • Patent number: 3983269
    Abstract: Durable crease and wrinkle resistance properties are permanently imparted to fabrics and garments by treating the same with a novel composition prepared by reacting a urea with a condensation product of an aldehyde, an amine and phosphoric acid under curing conditions.
    Type: Grant
    Filed: September 30, 1974
    Date of Patent: September 28, 1976
    Inventor: Glenn A. Pearson
  • Patent number: 3983289
    Abstract: An electrically insulating prepreg which comprises a resin composition of an alicyclic epoxy compound prepared by the expoxidation of an alkadiene alcohol ester of an alicyclic polybasic carboxylic acid, a latent curing agent, and a solid substrate, wherein said resin composition, once it has been applied to the substrate, is in the B-stage cured state and is thereby acetone soluble, thermoplastic and nontacky.
    Type: Grant
    Filed: April 9, 1974
    Date of Patent: September 28, 1976
    Assignees: Mitsubishi Chemical Industries Ltd., Mitsubishi Denki Kabushiki Kaisha
    Inventors: Syunichiro Nishizaki, Hiroshi Teratani, Osamu Fujisawa, Jiro Fukushima, Makoto Tokizawa, Nobukatsu Wakabayashi, Takashi Saito
  • Patent number: 3979178
    Abstract: Improvement in the strength of fabric finished for durable press properties with an N-methylol amide cross-linking agent and sulfuric acid catalyst is obtained by inclusion of magnesium sulfate in the finishing formulation.
    Type: Grant
    Filed: October 9, 1974
    Date of Patent: September 7, 1976
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Robert M. Reinhardt, Russell M. H. Kullman
  • Patent number: 3979532
    Abstract: 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: Grant
    Filed: August 30, 1973
    Date of Patent: September 7, 1976
    Assignee: Statni vyzkumny ustav kozedelny
    Inventors: Eduard Muck, Josef Horak, Jaroslav Strachota, deceased, Jiri Boleslav, Lubomir Grygera, Ladislav Bogdanovicz, Otto Hvezda
  • Patent number: 3976604
    Abstract: An ethylenimine prepolymer has been prepared by mixing certain alkyl halides with ethylenimine in molar ratios of about from 44:1 to 27:1, respectively, and allowing the mixture to stand for not more than about 16 hours.
    Type: Grant
    Filed: January 30, 1975
    Date of Patent: August 24, 1976
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Earl J. Roberts, Stanley P. Rowland
  • Patent number: 3962509
    Abstract: Waterproof corrugated paperboard and other paper constructions and a process for producing such waterproof paperboard by impregnating paperboard with a mixture containing from about 10 to about 50 weight percent tung oil and from about 90 to about 50 weight percent paraffin wax and curing the impregnated paper at a temperature from about 80.degree.C to about 163.degree.C.
    Type: Grant
    Filed: December 24, 1974
    Date of Patent: June 8, 1976
    Assignee: Continental Oil Company
    Inventor: Charles E. Thompson
  • Patent number: 3961110
    Abstract: Phosphorus- and nitrogen-containing polymers, solubilized by hydroxymethylphosphonium salts and formaldehyde, were allowed to react with phenol, alkyl substituted phenols, or halogen substituted phenols which contain one or more hydrogens ortho or para to the phenolic hydroxyl group to (a) prepare flame-resistant polymers and (b) prepare flame-, glow-, wrinkle-, and shrink-resistant woven and knit textiles which contain 25% or more cellulosic fibers.
    Type: Grant
    Filed: August 22, 1974
    Date of Patent: June 1, 1976
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Donald J. Daigle, Armand B. Pepperman, Jr., Sidney L. Vail
  • Patent number: 3955032
    Abstract: A process for rendering natural and synthetic materials and blends of the same flame retardant which entails treating the same with an aqueous dispersion of the flame retardant agent reduced to a finely divided state suspended in a latex medium and applied to the material with a finely divided metal oxide as synergist, by any convenient means; dried and set in place by baking. The active flame retardant agents are chlorinated cyclopentadieno compounds, chlorobrominated cyclopentadieno compounds, applied alone or in admixture with each other, or in admixture with brominated cyclopentadieno compounds, and in admixture with metallic oxides. The active flame retardant agents are reduced to a fine state of subdivision, preferably under 2 microns average particle diameter.
    Type: Grant
    Filed: November 14, 1973
    Date of Patent: May 4, 1976
    Assignee: White Chemical Corporation
    Inventor: Vladimir Mischutin
  • Patent number: 3949108
    Abstract: Organic fibrous materials especially cellulosic and other textiles are rendered flame resistant upon treatment with an emulsion containing either (1) an organic bromine containing material having at least 65% bromine such as polyvinylbromide, (2) polyvinylbromide and an N-methylol agent such as trimethylolmethylglycoluril, (3) polyvinylbromide and a metal oxide such as antimony oxide, and (4) polyvinylbromide, N-methylol agent and metal oxide. The emulsions are applied to various fibers by the pad-dry-cure technique. The finish contained the added quality of wrinkle resistance and rot resistance. The treated textiles, including polyester/cotton blends remain highly flame resistant through innumerable laundry cycles.
    Type: Grant
    Filed: June 1, 1973
    Date of Patent: April 6, 1976
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Darrell J. Donaldson, Floyd L. Normand, George L. Drake, Jr., Wilson A. Reeves
  • Patent number: 3947611
    Abstract: In the preparation of low friction thread for use in the manufacture of bearings the thread is first rendered bondable, is then coated in a bath of bonding resin, is led vertically out of the bath and the resin is cured to the B-stage, and the B-stage thread is wound into spools for subsequent use.
    Type: Grant
    Filed: October 29, 1974
    Date of Patent: March 30, 1976
    Inventor: Charles S. White
  • Patent number: 3944690
    Abstract: Nonwovens of natural and synthetic fibers which are bonded uniformly over the whole cross-section are obtained by using as binders aqueous polymer dispersions containing as heat-sensitizing agents alkoxylated amines having inverse solubility and a pH of less than 6.
    Type: Grant
    Filed: January 30, 1975
    Date of Patent: March 16, 1976
    Assignee: BASF Aktiengesellschaft
    Inventors: Dieter Distler, Kurt Wendel, Andreas Einwiller, Knut Oppenlaender
  • Patent number: 3934285
    Abstract: Mattress fabrics or the like rendered fire-resistant by coating the underside with a polymeric binder having dispersed therein from 30-60% by weight of a flake- or leaf-shaped heat conductive material selected from the group consisting of aluminum and graphite of from 50-400 mesh.
    Type: Grant
    Filed: August 16, 1971
    Date of Patent: January 27, 1976
    Assignee: Burlington Industries, Inc.
    Inventor: Robert Edward May
  • Patent number: RE28914
    Abstract: A process for imparting oil and water repellency, soil release, and durable press characteristics to a celluosic-containing textile material and product produced by this process, comprising applying thereto an aminoplast textile resin, a textile resin catalyst, a fluorocarbon, and a synthetic acid copolymer, and curing at a temperature of 100-200.degree.C.
    Type: Grant
    Filed: July 11, 1972
    Date of Patent: July 20, 1976
    Assignee: Deering Milliken Research Corporation
    Inventor: Francis W. Marco
  • Patent number: RE29630
    Abstract: Mattress .Iadd.and upholstery .Iaddend.fabrics or the like rendered fire-resistant by coating the underside with a polymeric binder having dispersed therein from 30-60% by weight of a flake- or leaf-shaped heat conductive material selected from the group consisting of aluminum and graphite of from 50-400 mesh.
    Type: Grant
    Filed: September 17, 1976
    Date of Patent: May 16, 1978
    Assignee: Burlington Industries, Inc.
    Inventor: Robert Edward May