Proteinaceous Base (e.g., Wool, Leather, Etc.) Patents (Class 427/389)
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Patent number: 5821177Abstract: A mixture of at least one acid and at least one metal compound enhance the stain resistance or acid dye fixation and resistance to cold water bleeding of fibrous polyamide and wool substrates, for example, carpets, treated with a water-soluble sulfonated aromatic-aldehyde condensation resin, for example, sulfonated resole and sulfonated novolak type resins; at the same time an improvement in light fastness or non-yellowing is obtained and the durability or wash fastness of the stain resistance is improved; the condensation resin is optionally employed in conjunction with a polymeric methacrylic acid. The acid of the mixture is one or more of phosphoric acid, polyphosphoric acid, citric acid and sulfuric acid; the metal compound is, in particular, a salt of magnesium or copper.Type: GrantFiled: December 16, 1996Date of Patent: October 13, 1998Assignee: Trichromatic Carpet Inc.Inventor: Yassin M. Elgarhy
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Patent number: 5817377Abstract: The invention comprises a method for applying a curable resin, such as a photosensitive resin, to a substrate such as a papermaker's dewatering felt. The method comprises the steps of providing a substrate; providing a curable liquid resin; providing a second material different from the curable liquid resin; applying the second material to the substrate to occupy at least some of the voids in the substrate intermediate the first and second surfaces of the substrate; applying the curable resin to the substrate; curing at least some of the resin to provide a resin layer on the substrate; and removing at least some of the second material from the substrate, wherein at least some of the second material is removed from the substrate after applying the curable resin to the substrate.Type: GrantFiled: May 12, 1997Date of Patent: October 6, 1998Assignee: The Procter & Gamble CompanyInventors: Paul Dennis Trokhan, John Robert Powers, James Daniel Miller, II, Glenn David Boutilier
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Patent number: 5807409Abstract: The present invention provides for a method of improving the pull-up characteristic of a leather substrate darkened with a finishing oil modified by dissolving a modifier in a conventional finishing oil. The modifier may be polymerized from a monomer mix of alkyl acrylates and alkyl methacrylates. Improved pull-up characteristic of a leather substrate is esthetically very appealing and is highly desired by a consumer. The modifier of the present invention increases the viscosity of the finishing oil, thereby extending the open time, which is a time duration during which the oil applied over the leather substrate surface stays on the surface. Increased open time permits a manufacturer to spread the oil over more area of the leather substrate than conventional unmodified finishing oils, without substantially affecting the pull-up characteristic of a leather substrate darkened with the finishing oil.Type: GrantFiled: October 30, 1996Date of Patent: September 15, 1998Assignee: Rohm and Haas CompanyInventors: John Shaftoe Moore, Robert Howard Gore, John Hawthorn
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Patent number: 5770264Abstract: This invention relates to a method for coating leather with an anionically modified polyurethane urea prepared by(1) reacting(A) an aromatic diisocyanate,(B) a polyether polyol having a number average molecular weight greater than 1500,(C) at least one compound containing 1 to 2 isocyanate-reactive groups and at least one ionic group, and(D) a polyamine having a number average molecular weight of at least 32,wherein the average total functionality of compounds (B), (C), and (D) is 1.85 to 2.2 and the molar ratio between the NCO groups of component (A) and the NCO-reactive groups of components (B), (C), and (D) is greater than 1, thereby forming an intermediate having residual NCO groups, and(2) mixing the intermediate product with water to form an aqueous dispersion of an anionically modified polyurethane urea having 800 to 1500 mmol of urethane groups and 800 to 1800 mmol of urethane plus urea groups per kilogram of the polyurethane urea.Type: GrantFiled: September 5, 1996Date of Patent: June 23, 1998Assignee: Bayer AktiengesellschaftInventors: Thomas Munzmay, Tillmann Hassel
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Patent number: 5753747Abstract: A reactive hot melt adhesive and/or sealing composition having a heat of crystallization in joules/gram of -2 or lower, comprising a curable heat-flowable adhesive material and a particulate filler, wherein said composition has a thermal conductivity of less than 0.30 W/m.multidot..degree.C. The invention also relates to a method of using the adhesive/sealer composition described herein to fill a cavity or recess in a substrate and the filled substrates formed thereby.Type: GrantFiled: April 22, 1996Date of Patent: May 19, 1998Assignee: Minnesota Mining and Manufacturing CompanyInventor: Hans T. Oien
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Patent number: 5744199Abstract: This invention relates to a method of sealing openings in structural components of a building to reduce the amount of smoke which may pass through the opening in the event of a fire. The method comprises filling an opening in a structural component of a building with a support material; applying a coating of a silicone composition over the filled opening and allowing the silicone composition to cure into a continuous elastomeric film having certain properties. These silicone compositions exhibit pseudo plastic rheology which facilitates their application by spraying.Type: GrantFiled: October 31, 1996Date of Patent: April 28, 1998Assignee: Dow Corning CorporationInventors: Eric Jude Joffre, Robert Mark Schroeder, Arthur James Tselepis, Andreas Thomas Franz Wolf
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Patent number: 5738912Abstract: The invention relates to a method for coating textiles and/or leather with an aqueous dispersion comprising(A) a mixture of(i) a urethane-containing blocked NCO prepolymer having a number average molecular weight of 2000 to 10,000, a content of blocked isocyanate groups (calculated as NCO) of 0.5 to 5 wt. %, an ethoxy group content of 2 to 50 wt. %, an ionic group content of 5 to 30 meq per 100 g of the prepolymer, and(ii) a polyamine having (cyclo)aliphatically bonded primary and/or secondary amino groups,wherein the equivalent ratio of blocked NCO groups of component (i) to amino groups of component (ii) is 1:0.9 to 1:1.2, and(B) an aqueous phase.Type: GrantFiled: December 11, 1996Date of Patent: April 14, 1998Assignee: Bayer AktiengesellschaftInventors: Eberhard Konig, Detlef-Ingo Schutze, Josef Pedain
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Patent number: 5738688Abstract: The invention consists of a process to improve the resistance to stains on fibres, processed or not, finished or not on the basis of dyeable natural or synthetic fibres, in particular polyamide. According to the invention the fibres are treated with a solution containing tannic acid and a condensation product of a sulphonated phenol- or naphtol-derivate with an aldehyde. The treatment can be made before, during or after the dyeing process. The treatment is done in an acid medium.Type: GrantFiled: August 2, 1996Date of Patent: April 14, 1998Assignee: N. V. Denderland-MartinInventor: Armand De Lathauwer
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Patent number: 5738687Abstract: A method for imparting soil resistance to unscoured carpets, and a carpet treated in accordance with the method, are provided. In accordance with the method, a substrate comprising unscoured carpet fibers is treated with the ammonium salt of a polycarboxylic acid, such as an ammonium salt of a hydrolyzed styrene/maleic anhydride copolymer. The treated substrate is found to have enhanced water and oil repellency in both heat cured and room temperature drying conditions.Type: GrantFiled: July 23, 1996Date of Patent: April 14, 1998Assignee: Minnesota Mining and Manufacturing CompanyInventors: Robert F. Kamrath, John C. Chang, Shou-Lu G. Wang, Irvin F. Dunsmore
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Patent number: 5723182Abstract: An aqueous leather coating composition and a method for coating leather with the aqueous coating composition containing a multi-stage emulsion polymer which has been contacted with a transition metal oxide, hydroxide, or carbonate is provided. The leather coating fulfills desirable protective and aesthetic functions.Type: GrantFiled: August 27, 1996Date of Patent: March 3, 1998Assignee: Rohm and Haas CompanyInventors: Chol-Yoo Choi, Patricia Marie Lesko, Katherine Sue Rice
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Patent number: 5716676Abstract: The invention relates to the use of coating compositions to prepare coatings having water vapor permeabilities of at least 2500 g/m.sup.2 per day (DS 2109 TM1 method) containing(A) a polyurethane containing (1) 0.1 to 75 meq/100 g of ionic groups and (2) 11 to 50% by weight of --(CH.sub.2 CH.sub.2 O).sub.Type: GrantFiled: November 18, 1996Date of Patent: February 10, 1998Assignee: Bayer AktiengesellschaftInventors: Detlef-Ingo Schutze, Wilhelm Thoma, Klaus Nachtkamp, Josef Pedain, Reinold Schmitz
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Patent number: 5714082Abstract: This invention provides compositions suitable for treating fibrous substrates to render them durably resistant to dry soil and durably repellent to water and oil. One composition is an aqueous emulsion comprising: a dry soil resistant and water and oil repellent fluorochemical treatment and an effective amount of one or more fluorochemical surfactants wherein the surfactants comprising one or two fluorochemical groups and one or two water-solubilizing polar groups. Another composition is an aqueous emulsion comprising: a dry soil resistant and water and oil repellent fluorochemical treatment; an effective amount of one or more fluorochemical surfactants wherein the surfactants comprising one or two fluorochemical groups and one or two water-solubilizing polar groups; and one or more non-fluorinated additives.Type: GrantFiled: June 2, 1995Date of Patent: February 3, 1998Assignee: Minnesota Mining and Manufacturing CompanyInventors: Gail S. Boardman, Steven J. Martin, Aaron D. Otteson, Jeffrey G. Linert, Pamela A. Wolf, Roger R. Alm
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Patent number: 5693704Abstract: A dry, non-oily, non-greasy, rubber or vinyl surface protectant contains a silicone component and an acrylic component in its formulation. When only the silicone component is applied to rubber and vinyl surfaces, the surfaces become glossy but feel oily. When only the acrylic component is applied, they are glossy and feel dry but are tacky and draggy as if a heavy residue was present. When components are blended and applied to rubber and vinyl surfaces, the surfaces have a dry shine with good gloss and feel completely dry. The treated surfaces are also not tacky and give no sensation of heavy residue presence.Type: GrantFiled: November 3, 1995Date of Patent: December 2, 1997Assignee: Dow Corning CorporationInventor: Tara Nicole Estes
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Patent number: 5683611Abstract: Aqueous dispersions containing special aminopropionic acid derivatives and co-oligomers based on fatty crotonates are suitable for the oiling of leather. The leathers thus treated are distinguished by high resistance to washing and cleaning and by impermeability to water.Type: GrantFiled: July 12, 1996Date of Patent: November 4, 1997Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Rudolf Zauns-Huber, Fredi Wolter, Guenter Uphues, Gilbert Schenker
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Patent number: 5681620Abstract: Hydrofluorosilicic acid and its water soluble salts enhance the stain resistance or acid dye fixation and resistance to cold water bleeding of fibrous polyamide and wool substrates, for example, carpets, treated with a water soluble sulfonated aromatic-aldehyde condensation resins, for example, sulfonated resole and sulfonated novolak type resins; at the same time an improvement in light fastness or non-yellowing is obtained and the durability or wash fastness of the stain resistance is improved; the condensation resin is optionally employed in conjunction with a polymeric methacrylic acid.Type: GrantFiled: January 11, 1996Date of Patent: October 28, 1997Inventor: Yassin M. Elgarhy
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Patent number: 5679418Abstract: A polyurethane composition suitable for producing leather-like sheets having a soft hand and excellent durability and being dyeable with acid dyes comprising a mixture of:a first polyurethane (a) obtained by reacting:an intermediate product diol (D) with both ends thereof substantially being OH and obtained by reacting a tertiary amino group-containing diol (A), a polymer diol (B) having a number average molecular weight of 500 to 3,000 selected from the group consisting of polyesters, polycarbonates, polylactones and polyethers and an organic diisocyanate (C1), in such stoichiometric amounts as to make the molar ratio of NCO/OH 0.5 to 0.Type: GrantFiled: November 7, 1995Date of Patent: October 21, 1997Assignee: Kuraray Co., Ltd.Inventor: Toshiyuki Akasawa
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Patent number: 5674558Abstract: A wipe-on clear protectant based on polyurethane is provided, which provides a finish that is durable and long lasting, is not injurious to the leather or artificial leather on which it is applied, in the instance of use on vinyl, impedes, rather than fosters, plasticizer migration, and is not slippery or tacky to the touch. In the preferred composition, polyurethane is dissolved in isopropyl alcohol, and ethylene glycol monobutyl ether is added, and the resulting liquid is wiped as a clear liquid onto the surface of the cleaned and dry leather or artificial leather produce which is to be protected. The finish dries clear, even, waterproof, smooth and without tackiness in less than thirty minutes.Type: GrantFiled: September 14, 1995Date of Patent: October 7, 1997Assignee: Repair-It Industries, Inc.Inventor: Lawrence L. Speer
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Patent number: 5660887Abstract: The present invention relates to polyurethane hot melt adhesive that are hardened by the action of moisture and which contain at least one reaction product from a component that contains NCO groups and an essentially linear hydroxypolyester, hydroxypolyether, and/or hydroxypolyetherester component. In addition, the present invention relates to a procedure for manufacturing a material that is permeable to water only in vapor form, this being in the form of a fibre material, in particular in the form of a web, which is joined to a polyurethane film, in which the fibre material is coated with a polyurethane material and subsequently the polyurethane material is hardened to form a water-vapor permeable film. The present invention also relates to a material that is permeable to water only in vapor form and which is in the form of a fibre material, in particular in the form of a web, that is bonded to a polyurethane film.Type: GrantFiled: April 12, 1995Date of Patent: August 26, 1997Assignee: H. B. Fuller Licensing & Financing, Inc.Inventors: Harald Werenicz, Franz Maitz, Walter Nussbaumer, Ludwig Stingl, Franz Peter Schmitz
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Patent number: 5658484Abstract: The present invention relates to anhydrous and water-containing agents for waterproofing leathers and furs, which comprise a silicone and as emulsifier an alkyl polyalkylol ether carboxylic acid and/or an alkylaryl polyalkylol ether carboxylic acid and/or one of their alkali, alkaline earth, ammonia, amine, or alkanolamine salts. The present invention further relates to the use of these agents for waterproofing, preferably in retanning or afterwards. Subsequent to the waterproofing, an aftertreatment using metallic salts of bito tetravalent cations may be carried out.Type: GrantFiled: November 18, 1996Date of Patent: August 19, 1997Assignee: Chemische Fabrik Stockhausen GmbHInventors: Helmut Lohmann, Wolfgang Hubner, Leonardus Strijbos, Waldemar Inger
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Patent number: 5630846Abstract: The present invention provides an agent for treating textile having a combination of a modifying agent and a fixing agent, wherein the modifying agent is a fluorine-containing phosphoric acid derivative represented by the formula wherein R.sup.1 and R.sup.2 are, same or different, a hydrogen atom or R.sub.f --(CH).sub.2).sub.m -- (wherein R.sub.f is a saturated or unsaturated, linear or branched fluorine containing aliphatic group having 4 to 20 carbon atoms in which an oxygen atom, a nitrogen atom, a sulfonyl group and/or an aromatic ring may intervene between the carbon atoms; and m is 1 or 2) (R.sup.1 and R.sup.Type: GrantFiled: August 5, 1994Date of Patent: May 20, 1997Assignee: Daikin Industries Ltd.Inventors: Kazuto Hara, Yasuo Itami, Tetsuya Masutani, Nobuyuki Nose, Takashi Enomoto, Akihiko Ueda, Taro Sano, Motonobu Kubo
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Patent number: 5629052Abstract: The invention comprises a method for applying a curable resin, such as a photosensitive resin, to a substrate such as a papermaker's dewatering felt. The method comprises the steps of providing a substrate; providing a curable liquid resin; providing a second material different from the curable liquid resin; applying the second material to the substrate to occupy at least some of the voids in the substrate intermediate the first and second surfaces of the substrate; applying the curable resin to the substrate; curing at least some of the resin to provide a resin layer on the substrate; and removing at least some of the second material from the substrate, wherein at least some of the second material is removed from the substrate after applying the curable resin to the substrate.Type: GrantFiled: February 15, 1995Date of Patent: May 13, 1997Assignee: The Procter & Gamble CompanyInventors: Paul D. Trokhan, John R. Powers, James D. Miller, II, Glenn D. Boutilier
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Patent number: 5629402Abstract: This invention relates to coating compositions containing (A) a polyurethane system containing either a polyurethane containing ionic groups and polyethylene oxide units or a precursor thereof prepared from a blocked isocyanate prepolymer and a cross-linking agent and, optionally, (B) organic solvents. This invention further relates to the use of such coating compositions to prepare coatings that are permeable to water vapor.Type: GrantFiled: March 31, 1994Date of Patent: May 13, 1997Assignee: Bayer AktiengesellschaftInventors: Josef Pedain, Detlef-Ingo Schutze, Wilhelm Thoma, Klaus Nachtkamp
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Patent number: 5620748Abstract: Soft leathers with a pleasant hand are obtained on fatliquoring and filling leather and fur skins with water-soluble or water-dispersible graft polymers of vegetable and animal oils, obtainable by radically initiated polymerizationA) of a monomer or monomer mixture comprising(a) from 20 to 100% by weight of monoethylenically unsaturated carboxylic acids and/or monoethylenically unsaturated sulfonic acids and/or monoethylenically unsaturated phosphonic acids or their alkali metal, alkaline earth metal or ammonium salts,(b) from 0 to 80% by weight of other monoethylenically unsaturated monomers which are copolymerizable with the monomers (a), and(c) from 0 to 5% by weight of at least doubly ethylenically unconjugatedly unsaturated monomersin the presence ofB) vegetable and/or animal oils in a weight ratio of A:B of (80-1):(20-99).Type: GrantFiled: March 3, 1994Date of Patent: April 15, 1997Assignee: BASF AktiengesellschaftInventors: Hermann Birkhofer, Peter Danisch, Walter Denzinger, Heinrich Hartmann, Michael Kneip
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Patent number: 5618577Abstract: A multi-ply structure which includes a release coating sandwiched between two plies of the structure and present in an amount of about 5 to about 25 g/sq yd., one of the plies of the structure being flexible and in contact with the release coating and removable therefrom by the application of a force of between about 90 to about 600 g/in., as determined by the Keil test procedure, including a composition for forming the release coating and comprising an aqueous coating composition which includes a solids portion and which is effective in forming a coating having release properties, the solids portion of the composition comprising a major amount of resin binder and a minor amount of filler, the filler comprising a major amount of clay and a minor amount of magnesium or calcium hydroxide, and including also a continuous process for forming such multi-ply structure, including particularly a structure comprising a poly(vinyl chloride) ply strippable from a support ply.Type: GrantFiled: June 6, 1995Date of Patent: April 8, 1997Assignee: Congoleum CorporationInventors: John D. Pearson, Salvatore Diodati
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Patent number: 5603733Abstract: Leather is rendered flexible and water repellent by treatment with a low molecular weight, generally monomeric, amphoteric surfactant having at least one surfactant hydrophobe, at least two cationic groups and at least two anionic groups which are carboxylic groups.Type: GrantFiled: December 12, 1995Date of Patent: February 18, 1997Assignee: Allied Colloids LimitedInventors: Adrian S. Allen, Finlay D. Aiston
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Patent number: 5578348Abstract: Aqueous emulsions of graft copolymers comprising acrylate esters of alkanols having 2-24 carbon atoms grafted onto a backbone polymer comprising monomers of acrylate esters of alkanols having 2-24 carbon atoms are disclosed, as is the finishing of surfaces such as tanned leather by applying such emulsions thereto.Type: GrantFiled: May 22, 1995Date of Patent: November 26, 1996Assignee: R ohm GmbHInventors: Harald Bauer, Juergen Christner, Maria L. Weber, Wolfgang Hoehne
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Patent number: 5571444Abstract: A textile treatment composition which comprises; a textile binding agent which forms a chemical bond with the outer layer of the textile according to the formula (Ia): ##STR1## and, a barrier agent which forms a chemical bond with the textile binding agent and which increases the surface tension of the textile. Methods for treating textiles with the treatment composition, and kits comprising the components are also provided.Type: GrantFiled: January 11, 1996Date of Patent: November 5, 1996Assignee: Invicta Group Industries Pty Ltd.Inventors: Arthur D. Fisher, Dieter Reinehr, Jorg Binz, Sven Strunk
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Patent number: 5567205Abstract: Wet leather treating compositions and methods of wet treating leather hides employing alkylpolyglycosides for enhancing the penetration and absorption of the leather treatment formulations in an environmentally safe manner. The compositions are substantially free of volatile organic compounds.Type: GrantFiled: June 6, 1995Date of Patent: October 22, 1996Assignee: Henkel Corp.Inventors: Michael W. Counts, John A. Thompson, Jack O. Lavoie, Robert A. Aleksejczyk
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Patent number: 5567343Abstract: An aqueous dispersion of amphiphilic co-oligomers for oiling leather or skins wherein the dispersion contains co-oligomers of(a) fatty crotonates,(b) radical-copolymerizable, hydrophilic, ethylenically unsaturated acids, anhydrides and mixtures thereof, wherein the weight ratio of (a):(b) is 30-90%:70-10%, based on the weight of (a)+(b), the dispersion having an active substance content in the range from about 30-70% by weight, based on the weight of the dispersion, and optionally(c) copolymerizable comonomers having neither a pronounced hydrophobicizing effect nor containing hydrophilicizing groups.Type: GrantFiled: February 17, 1995Date of Patent: October 22, 1996Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Wolfgang Ritter, Hans-Dieter Sitz, Rudolf Zauns-Huber, Emil Ruscheinsky
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Patent number: 5562761Abstract: Compositions in the form of aqueous dispersions which contain dihydroxypolyorganosiloxanes, amino-functional silanes and cyclic oligosiloxanes and/or reaction products of these components, are suitable for coating sheet materials made of fiber materials. This confers, to the sheet materials, good waterproofness properties with good permanency of the waterproofness, good low-temperature flexibility and springiness.Type: GrantFiled: December 27, 1995Date of Patent: October 8, 1996Assignee: Ciba-Geigy CorporationInventors: Franz Dirschl, Harald Chrobaczek, Rainer Augart, Hans-Ludwig Kienle, Jurgen Uhl
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Patent number: 5549930Abstract: The present invention is directed to a silicon based drying accelerator and top coat for wet nail polish, as well as a method for drying nail polish using the accelerator. The silicone based composition is comprised of at least 50% dimethicone and at least 25% cyclomethicone. It may be applied to wet nail polish using traditional spray or brush methods, or by using a dropper. The drying accelerator significantly reduces nail polish drying time over natural and other drying methods. The composition poses no health or environmental detriment.Type: GrantFiled: May 25, 1995Date of Patent: August 27, 1996Inventor: Moisei Reysis
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Patent number: 5531795Abstract: In the method for casein finishing of leather, transglutaminase is added to a casein solution, whereafter the thus formed solution is applied to leather, which is dried. Transglutaminase, which is not toxic, functions as a hardening agent in the method.Type: GrantFiled: July 10, 1995Date of Patent: July 2, 1996Assignee: Novo Nordisk A/SInventors: Lars Rasmussen, Annette Mollgaard, Bent R. Petersen, Niels H. Sorensen
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Patent number: 5516337Abstract: Method for imparting stain resistance to fibers, especially wool, which is adaptable to current wool processing methods. Steps comprise:A. treating fibers with a mordant;B. treatment with a combination of sulfonated or disulphonated surfactant together with a stain resist (e.g., syntan); andC. providing treatment with a fluorochemical in either step A. or B. in an amount sufficient to improve stain resistant properties. The improved method may be undertaken in the liquor remaining in a dye bath after dyeing fiber (spent bath process). Process pH is acid. Advantage: lowers the proportion of stain resist chemical to wool necessary to impart stain resistance. Tip sealing, using polymethacrylic resin and fluorochemical, may be an added step.Type: GrantFiled: January 10, 1995Date of Patent: May 14, 1996Assignee: Minnesota Mining and Manufacturing CompanyInventor: Van G. Nguyen
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Patent number: 5516578Abstract: The invention relates to a water and oil repellency imparting composition which comprises:(a) a fluoroaliphatic radical-containing agent; and(b) a polymer comprising cyclic carboxylic anhydride groups.Additionally, the composition may comprise:(c) a softener and/or a plasticizer. The composition provides water and oil repellent properties to fibrous and other substrates treated therewith and it shows high compatibility with the commonly used softeners.Type: GrantFiled: October 14, 1994Date of Patent: May 14, 1996Assignee: Minnesota Mining and Manufacturing CompanyInventor: Dirk M. Coppens
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Patent number: 5514419Abstract: There is disclosed a method for treating and protecting a substrate, said method comprising coating the surface of said substrate with a composition comprising a blend of(A) a polydimethylsiloxane polymer having a viscosity at 25.degree. C. of 5 to 100,000 cS; and(B) a polyisobutylene oligomer having a number average molecular weight of 200 to 550. The treatment imparts an aesthetically pleasing appearance to the surfaces of plastic, rubber or leather substrates whereby surface gloss is enhanced, but not excessively, as is the case for a comparable all-silicone treating agent.Type: GrantFiled: October 4, 1994Date of Patent: May 7, 1996Assignee: Dow Corning CorporationInventors: Paul J. Popa, Linda D. Kennan, Thomas M. Gentle, Dale E. Hauenstein
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Patent number: 5489389Abstract: An aqueous dispersion of amphiphilic oligomers for oiling leather or skins wherein the dispersion contains anionically modified urethane fatty oligomers containing long-chain hydrocarbon fatty groups containing from 8 to 40 carbon atoms, together with salt-forming carboxylic acid groups, sulfonic acid groups and mixtures thereof, which form urethane fatty oligomers having an at least predominantly linear basic structure of the oligomer molecule.Type: GrantFiled: February 17, 1995Date of Patent: February 6, 1996Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Wolfgang Ritter, Rudolf Zauns-Huber, Emil Ruscheinsky, Stefanie Ortanderl
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Patent number: 5478602Abstract: This invention relates to a method of coating a substrate by applying thereon an aqueous coating composition containing an alkali-swellable complex hydrophobe associative thickener. When a blade coater is utilized to apply said composition, lower blade pressures are obtained allowing increased line speeds to be used without scratching the substrate.Type: GrantFiled: April 5, 1995Date of Patent: December 26, 1995Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventors: Gregory D. Shay, Richard D. Jenkins, David R. Bassett
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Patent number: 5476517Abstract: The present invention relates to a composition and process for inhibiting fatty spew on leather comprising an oiling component in combination with a Guerbet alcohol having the general formula I:R.sup.1 --CH(CH.sub.2 OH)--R.sup.2 (I)wherein R.sup.1 and R.sup.2, independently of one another represent an alkyl group containing from 6 to 12 carbon atoms, and wherein the total number of carbon atoms per Guerbet alcohol molecule is in the range from 16 to 24.Type: GrantFiled: February 17, 1995Date of Patent: December 19, 1995Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Rudolf Zauns-Huber, Emil Ruscheinsky, Fredi Wolter
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Patent number: 5472741Abstract: Copolymers containing incorporated radicals of long-chain alcohols and neutralized carboxyl groups are suitable as retanning agents for leather. They result in an excellent combination of water repellency, softness and grain tightness.Type: GrantFiled: October 6, 1994Date of Patent: December 5, 1995Assignee: Bayer AktiengesellschaftInventors: Gunter Sackmann, Bruno Bomer, Joachim Kochta, Henricus Slaats
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Patent number: 5464660Abstract: Special compounds, having solidification points above 25.degree. C., selected from the group of dialkylethers and/or carboxylic acid esters are used as smooth agents for the production of wool combed slivers.Type: GrantFiled: April 8, 1994Date of Patent: November 7, 1995Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Wolfgang Becker, Raymond Mathis, Syliva Stapper-Druyen, Karin Robrahn, Rainer Hoffmann, Yasar C. Kiray
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Patent number: 5464451Abstract: A process for the re-tanning of tanned leather or pelt, wherein the tanned leather pelt is re-tanned with(A) a polymeric carboxylic acid, containing .alpha.-hydroxyacrylic units as constituent units of the polymer, optionally in salt formwith the proviso that for this re-tanning (A) is not employed immediately after a mineral tanning, immediately before a mineral re-tanning or after a mineral re-tanning and also not in a direct connection with a mineral after-treatment.Type: GrantFiled: February 17, 1994Date of Patent: November 7, 1995Assignees: Sandoz Ltd., Muenzing Chemie GmbHInventors: Jacques P. Denny, Josep R. Sorolla
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Patent number: 5458924Abstract: A durable light resistance and UV-screening action is imparted to a fibrous article by coating the fibrous article with a polymer comprising units derived from at least one monomer selected from those which are represented by the formulae (1) and (2): ##STR1## wherein R is H or CH.sub.3 and X is --O--, --OCH.sub.2 CH.sub.2 O-- or --OCH.sub.2 CH(CH.sub.3)O--, ##STR2## wherein Y is halogen or CH.sub.3, n is 1 or 2, R.sub.1 is C1-6 hydrocarbyl, m is 1 or 2, R.sub.2 is C1-6 alkylene and R.sub.3 is H or CH.sub.3.Type: GrantFiled: November 9, 1993Date of Patent: October 17, 1995Assignee: Ipposha Oil Industries Co., Ltd.Inventors: Kazuto Kashiwai, Takaichi Yamamoto, Shinichi Kumagae
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Patent number: 5453540Abstract: Fluorochemical compositions comprising fluorinated compounds, wherein the fluorinated compound comprises fluorochemical oligomeric portion, an organic moiety, and a group that can impart soft hand, stain release, water repellency, or a durable property when the compound is applied to a fibrous substrate, wherein the fluorochemical oligomeric portion is bonded to the organic moiety through an isocyanate-derived linking group. Also disclosed are fluorochemical compositions in the form of fluorochemical liquid dispersions and methods for preparing substrates treated with such compositions. Substrates so treated exhibit particularly durable and abrasion-resistant oil and water repellent properties. Intermediates in the preparation of the fluorochemical compositions are also disclosed. Some of the intermediates are useful as emulsifiers in fluorochemical liquid dispersions.Type: GrantFiled: November 29, 1993Date of Patent: September 26, 1995Assignee: Minnesota Mining and Manufacturing CompanyInventors: Rudolf J. Dams, Johan E. De Witte
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Patent number: 5442013Abstract: Aqueous emulsions of graft copolymers comprising acrylate esters of alkanols having 2-24 carbon atoms grafted onto a backbone polymer comprising monomers of acrylate esters of alkanols having 2-24 carbon atoms are disclosed, as is the finishing of surfaces such as tanned leather by applying such emulsions thereto.Type: GrantFiled: April 25, 1994Date of Patent: August 15, 1995Assignee: Rohm GmbHInventors: Harald Bauer, Juergen Christner, Maria L. Weber, Wolfgang Hoehne
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Patent number: 5418051Abstract: An improved process is provided for treating a porous web (especially fabric) to produce a novel silicone polymer internally coated web. In the process, a starting curable liquid silicone polymer is coated under pressure upon one surface of the web, and the web is then subjected to localized shear forces sufficient to move the silicone polymer composition into interior portions of the web and to distribute the silicone polymer composition generally uniformly therwithin in such planar region. Excess silicone polymer composition is wiped away from a web surface. Thereafter, the resulting web is heated or irradiated to cure the silicone polymer. Preferably a web is preliminarily impregnated with a fluorochemical. Webs procuded by this process are breathable, waterproof or highly water repellent, and flexible.Type: GrantFiled: February 16, 1993Date of Patent: May 23, 1995Assignee: Fabric Coating CorporationInventor: J. Michael Caldwell
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Patent number: 5418014Abstract: A stable aqueous dispersion and process for making the dispersion are provided containing hydrolyzed cellulose ester, organic solvent, water and acrylic resin having free acid functionalities that are at least partially neutralized. The dispersion is useful in coatings and can also contain surfactant and cross-linking agent.Type: GrantFiled: May 23, 1994Date of Patent: May 23, 1995Assignee: Eastman Chemical CompanyInventors: Chung M. Kuo, Larry G. Curtis, Paul L. Lucas
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Patent number: 5415787Abstract: A leather cleaner and conditioner consists of d-limonene, diporpylene glycol N-butyl ether, lecithin, poly (5) oxyethylene isodecyl oxypropyl amine, sorbitan monolaurate, triethanolamine modified dodecylbenzene sulfonate, butylated hydroxytolune, mineral oil, and water.Type: GrantFiled: September 20, 1994Date of Patent: May 16, 1995Assignee: Citra Science Ltd.Inventor: Jack Vlasblom
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Patent number: 5415788Abstract: A leather cleaner and conditioner consists of d-limonene, N-methyl-2-pyrrolidone, aliphatic dibasic acid ester, mineral oil, cetyl acetate, and butylated hydroxytoluene.Type: GrantFiled: September 20, 1994Date of Patent: May 16, 1995Assignee: Citra Science Ltd.Inventors: Jack Vlasblom, Vincent A. Dotolo
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Patent number: 5415789Abstract: A leather cleaner and conditioner consists of d-limonene, sorbitan monolaurate, mineral oil, lecithin, and butylated hydroxytoluene.Type: GrantFiled: September 20, 1994Date of Patent: May 16, 1995Assignee: Citra Science Ltd.Inventors: Jack Vlasblom, Vincent A. Dotolo
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Patent number: 5410010Abstract: A class of cross-linked fluorinated polyurethanes, which can be used for protecting and reinforcing coatings on films, sheets, laminates and similar thin structures made of cellulose, graphite, mica, kaolin, leather etc. as well as for adhesive and reinforcing material in multi-layer structures made of films, sheets, laminates and similar thin structures made of graphite, mica, kaolin, etc. These polyurethanes can be obtained starting from the following components:(A) a polyisocyanate consisting of a perfluoropolyether chain bound to the --NCO terminal groups through an aromatic or cycloaliphatic radical; and(B) a polyol consisting of a perfluoropolyether chain bound to the --OH terminal groups through an aromatic or cycloaliphatic radical.Type: GrantFiled: July 29, 1992Date of Patent: April 25, 1995Assignee: Ausimont S.p.A.Inventors: Claudio Tonelli, Giovanni Simeone