N=c=x Reactant Has Ionic Group Attached Thereto, E.g., Carboxyl Sulfonic, Etc. Patents (Class 524/840)
-
Patent number: 5945473Abstract: The invention relates to methods of preparing aqueous polymeric dispersions which contain a water-dispersible polyurethane, a polymer prepared from an ethylenically unsaturated monomer and at least one additional polymer which is capable of enhancing certain properties of products which utilize the aqueous dispersions of the present invention, wherein the ethylenically unsaturated monomer is polymerized in the presence of the water-dispersible polyurethane dispersion and the additional polymer and in the absence of a surfactant and an organic solvent, to aqueous compositions containing the aqueous polymeric dispersions and to articles of manufacture prepared from the aqueous compositions containing the aqueous polymeric dispersions.Type: GrantFiled: August 11, 1997Date of Patent: August 31, 1999Assignee: National Starch and Chemical Investment Holding CorporationInventors: Andrew J. Kielbania, Joseph G. Kleiner, Michael T. Sarkis, Antonios Tontisakis, Sharon P. Lee
-
Patent number: 5945476Abstract: The present invention relates to aqueous two-component compositions containinga) compounds which are substantially free from isocyanate groups, have an alkoxysilane group content (calculated as Si, MW 28) of 1 to 6% by weight, based on the weight of the compounds, and contain sufficient chemically incorporated hydrophilic groups to form a stable dispersion with water, wherein the alkoxysilane groups are incorporated as the reaction products ofi) a polyisocyanate component having a minimum average functionality of 2.4 and containing at least 50% by weight of polyisocyanate adducts andii) compounds containing secondary amino groups and alkoxysilane groups, andb) polyhydroxy compounds containing ester and/or carbonate groups and having a urethane group content of less than 5% by weight, based on the weight of the polyhydroxy compounds.The present invention also relates to coatings, adhesives and sealants prepared from these aqueous compositions and to compounds a) containing urea and alkoxysilane groups.Type: GrantFiled: April 9, 1998Date of Patent: August 31, 1999Assignees: Bayer Corporation, Bayer AktiengesellschaftInventors: Richard R. Roesler, Poli Yu, Lutz Schmalstieg
-
Patent number: 5936055Abstract: Disclosed is an acid-funtionalized polyurethane adduct and a process for the preparation of such adduct. The adduct having a linear or preferably branched structure comprises a plurality of internal urethane linkages and one or more terminal carboxylic acid groups per molecule. Such acid-funtionalized polyurethane adducts find value in the manufacture of crosslinked aqueous rubber latexes such as might be used in paint compositions.Type: GrantFiled: February 19, 1997Date of Patent: August 10, 1999Assignee: The Dow Chemical CompanyInventors: Michael J. Elwell, Hanno R. van der Wal, Camiel F. Bartelink, Henri J. Grunbauer
-
Patent number: 5936019Abstract: A thickener composition for thickening aqueous compositions which contains a) a water soluble or water dispersible thickener containing urethane groups, b) a non-ionic aromatic or alkyl-substituted aromatic emulsifier and c) a compound corresponding to formula IR.sub.2 --?(Q.sub.2 --).sub.t H!.sub.u (I)wherein R.sub.2 represents an optionally branched and unsaturated aliphatic radical having 6 to 22 carbon atoms, a cycloaliphatic radical having 6 to 10 carbon atoms or a heterocyclic radical having 5 to 12 ring atoms, as obtained by removing the active hydrogen from a hydroxyl, amino, carboxylic acid or amide group, Q.sub.2 represents a C.sub.2 -C.sub.4 alkylene oxide unit, t has a value from 1 to 30 and u has a value from 1 to 10, and d) optionally further additives.Type: GrantFiled: August 8, 1997Date of Patent: August 10, 1999Assignee: Bayer AktiengesellschaftInventors: Jan Mazanek, Hermann Kober, Klaus Walz
-
Patent number: 5932652Abstract: The present invention relates to aqueous polyurethane/urea dispersions wherein the polyurethane/ureas contain 0.5 to 6% by weight, based on the weight of the polyurethane/ureas, of alkoxysilane groups (calculated as Si, MW 28), which have been incorporated by the reaction of isocyanate groups with compounds containing alkoxysilane groups and aspartate groups.The present invention also relates to a process for preparing these aqueous polyurethane/urea dispersions and to coatings prepared from these aqueous polyurethane/urea dispersions.Type: GrantFiled: December 17, 1997Date of Patent: August 3, 1999Assignees: Bayer Corporation, Bayer AktiengesellschaftInventors: Richard R. Roesler, Lutz Schmalstieg, Lyuba K. Gindin
-
Patent number: 5929160Abstract: A method of decreasing the water uptake in a sulfopoly(ester-urethane) by preparing said sulfopoly(ester-urethane) from a chain extended sulfopolyester polyol which itself has been prepared in a two-step method, said sulfopoly(ester-urethane) comprising in its backbone at least one non-terminal arylene or alkylene group comprising a pendant sulfonic acid group or salt thereof, said sulfonic acid group or salt thereof having the formula ##STR1## wherein R is a trivalent aliphatic or aromatic group and M is a cation, said sulfonic acid group or salt thereof being bonded directly through said aliphatic or aromatic group to ester groups, the polymer of said sulfo(polyester-urethane) being terminated by at least one hydrolyzable silyl group,said two-step method for preparing said chain extended sulfopolyester polyol comprising the steps of:a) reacting a sulfopolycarboxylic acid or ester with a polyol to produce a sulfopolyester polyol,b) chain extending said sulfopolyester polyol by an esterification reaction withType: GrantFiled: September 25, 1997Date of Patent: July 27, 1999Assignee: Minnesota Mining and Manufacturing CompanyInventors: Larry R. Krepski, Steven M. Heilmann, Daniel E. Mickus, Wayne K. Larson
-
Patent number: 5929161Abstract: Process for preparing aqueous dispersions by free-radically initiated emulsion polymerization of one or more vinyl monomers in water in the presence of a cationically stabilized polyurethane as emulsifier.Type: GrantFiled: June 23, 1997Date of Patent: July 27, 1999Assignee: Vianova Resins GmbHInventors: Markus A. Schafheutle, Achim Voelker, Susanne Wehner, Klausjoerg Klein
-
Patent number: 5925711Abstract: The present invention relates to polyamines which are the reaction products ofa) unsaturated oligoesters containing an average of 2 to 4 double bonds per molecule andb) optionally other unsaturated compounds which are suitable as Michael addition acceptors and which contain an average of 1 to 4 double bonds per molecule, withc) (cyclo)aliphatic diamines which contain two primary amino groups, andd) optionally other amino-functional compounds which are suitable as Michael addition donors.The present invention also relates to aqueous, two-component coating compositions containing as binderA) the polyamines according to the invention andB) water dispersible polyisocyanates, andto coatings obtained from these coating compositions.Type: GrantFiled: June 26, 1997Date of Patent: July 20, 1999Assignee: Bayer AktiengesellschaftInventors: Christian Wamprecht, Hans-Josef Laas, Jurgen Meixner, Josef Pedain
-
Patent number: 5922806Abstract: The present invention relates to aqueous polyurethane dispersions having a resin solids content of 20 to 60 wt %, a viscosity at 23.degree. C. of 10 to 20,000 mPa.s and a pH of 5.5 to 8.5, wherein the polyurethane has a weight average molecular weight of 5,000 to 500,000 and a urethane group content (calculated as --NHCO--O--, molecular weight=59) of 2.5 to 15 wt %, and is based on a polyisocyanate component containing 50 to 100 wt % of 1-methyl-2,4- and/or -2,6-diisocyanatocyclohexane.The present invention also relates to aqueous binder compositions containing these aqueous polyurethane dispersions and known crosslinking resins and to the use of the aqueous polyurethane dispersions and aqueous binder compositions as binders for glass fiber sizings.Type: GrantFiled: March 6, 1997Date of Patent: July 13, 1999Assignee: Bayer AktiengesellschaftInventors: Harald Blum, Karin Naujoks, Helmut Reiff, Oswald Wilmes, Hans-Ulrich Meier-Westhues, Raymond Audenaert
-
Patent number: 5919856Abstract: A water-based thermosetting coating composition comprises a polyester resin having a number of pendant carboxyl groups and a crosslinker for the resin both dispersed in an aqueous medium containing a neutralizing base. The polyester resin contains as polyester-forming polyhydric alcohol reactants from 1 to 40% by weight of the entire polyester-forming reactants of a polyalkadienediol or a hydrogenated products thereof and from 2 to 50% by weight of the entire polyester-forming reactants of a 2,2-bis(hydroxymethyl)alkanoic acid. The coating composition is useful for forming a multilayer coating film on metallic substrates such as automobile bodies by applying the coating composition as an intermediate coating layer between an electrodeposition coating layer and a top coating layer.Type: GrantFiled: December 18, 1997Date of Patent: July 6, 1999Assignee: Nippon Paint Co., Ltd.Inventors: Tadahiko Nishi, Takeshi Takagi, Yoshitaka Okude
-
Patent number: 5919859Abstract: Aqueous resin dispersions obtainable by reaction, or partial reaction, ofI. hydroxyl-containing ketone, ketone/aldehyde and/or urea/aldehyde resins or hydrogenated follow-on products thereof andII. at least one hydrophilically modified isocyanate and/or polyisocyanate having at least one free NCO group, obtained by reacting at least one isocyanate and/or polyisocyanate with compounds which in addition to the hydrophilic or potentially hydrophilic group have at least one isocyanate-reactive function and which possess a hydrogen which is active according to the Zerewitinoff test, and which also possess at least one hydrophilic group and/or one potentially hydrophilic group,and then combining the neutralized resin with water.Type: GrantFiled: October 17, 1997Date of Patent: July 6, 1999Assignee: Huels AktiengesellschaftInventors: Martina Ortelt, Hartwig Lange, Klaus Janischewski
-
Patent number: 5919860Abstract: The present invention relates to aqueous polyurethane/urea dispersions wherein the polyurethane/ureas contain 0.5 to 6% by weight, based on the weight of the polyurethane/ureas, of alkoxysilane groups (calculated as Si, MW 28), which have been incorporated by the reaction of isocyanate groups with compounds containing alkoxysilane groups and secondary amino groups other than aspartate groups. The present invention also relates to a process for preparing these aqueous polyurethane/urea dispersions and to coatings prepared from these aqueous polyurethane/urea dispersions.Type: GrantFiled: December 17, 1997Date of Patent: July 6, 1999Assignee: Bayer CorporationInventors: Richard R. Roesler, Lyuba K. Gindin
-
Patent number: 5916965Abstract: To obtain water-based paint compositions which have outstanding storage stability and can also form paint films with outstanding appearance and water resistance.Water-based paint composition containing a hardener at 50-10 parts by weight to 50-90 parts by weight (solids) of an aqueous dispersion obtained by polymerizing an aqueous dispersion of a polyurethane resin of a number-average molecular weight of 1000-50,000, an acid value from carboxyl groups of .ltoreq.50 mg KOH/g, a sulfonate group content of 0.05-0.6 mol/1000 g, an allyl content of 0.1-1.1 mol/molecule and an acetate tolerance of .gtoreq.5 in the aqueous dispersion with ethylenic unsaturated monomers in a proportion as a weight ratio of polyurethane resin/ethylenic unsaturated monomer of 5/95-60/40.Type: GrantFiled: July 6, 1998Date of Patent: June 29, 1999Assignee: BASF Coatings AGInventors: Satoshi Matsumoto, Yoshiaki Matsukura
-
Patent number: 5912298Abstract: Compositions for floor polish. Specifically, a composition for floor polish made by the two-step process including the steps of (1) providing water-borne polyurethane resin, preferably having 2-20 acid functional groups per urethane and having an acid value of 15-200 and a molecular weight of 10,000 to 1,000,000, and (2) reacting the polyurethane resin with a calcium compound, not complexed with amines or ammonia, in an amount sufficient to form 0.05 to 0.9 chemical equivalents of calcium crosslinkages relative to the acid functional groups of the polyurethane resin. The invention also includes a floor polish made by a three-step process including the steps of (1) providing an emulsion of a water-borne polyurethane resin as described above, (2) adjusting the pH of the emulsion to a pH value within the range of 4.5 to 9 by adding a base to the emulsion, and (3) reacting the water-borne polyurethane resin with a calcium compound as described above.Type: GrantFiled: August 22, 1995Date of Patent: June 15, 1999Assignee: Yuho Chemicals, Inc.Inventors: Tadashi Gomi, Kazunori Nakahara, Etsuko Yanase, Ken-ichi Nakamura
-
Patent number: 5912299Abstract: Low VOC compositions for coating, staining and protecting porous substrates such as wood, concrete, cement, brick and the like, comprising aqueous dispersions of polyurethane-ureas.Type: GrantFiled: June 7, 1995Date of Patent: June 15, 1999Assignee: The Sherwin-Williams CompanyInventors: Revathi R. Tomko, Barbara J. Varone
-
Patent number: 5908912Abstract: An electrodepositable coating composition is provided comprising (a) an active hydrogen-containing, cationic salt group-containing resin electrodepositable on a cathode; (b) a curing agent for transurethanation, transamidation or transesterification curing like at least a partially capped polyisocyanate curing agent; and (c) a catalytic mixture of bismuth and an amino acid or amino acid precursor. Optionally, an auxiliary acid may be present to increase the effectiveness of the amino acid in the mixture with bismuth.Type: GrantFiled: June 3, 1997Date of Patent: June 1, 1999Assignee: PPG Industries Ohio, Inc.Inventors: Raphael O. Kollah, Matthew S. Scott, Gregory J. McCollum, Joseph A. Bethoski
-
Patent number: 5908895Abstract: Aqueous dispersion of silane-functional polyurethane resins having a number average molecular weight of 10000 to 500000 and a silicon content of 1 to 30 mmol per 100 g of resin solids obtainable by reacting(A) adducts containing NCO groups, which adducts are obtainable by reactinga) one or more compounds having at least one ionic or ionisable and/or hydrophilic nonionic group, and more than one isocyanate-reactive group withb) one or more organic diisocyanates,(B) with polyesters having an OH value of 150 to 300 mg of KOH/g and more than three OH groups per molecule, which are obtainable by reactingc) polyalcohols withd) polycarboxylic acids ande) monofatty acids(C) optionally with linear polyesters having an OH value of 40 to less than 150 mg of KOH/g, which contain no monofatty acids, and(D) with organic polyisocyanates, wherein at least a proportion of the polyisocyanates has at least one functional group R.sup.1 OSi.tbd. in whichR.sup.1 means C.sub.1 to C.sub.8 alkyl or --C(O)R.sup.2 and R.sup.2 means C.Type: GrantFiled: June 20, 1997Date of Patent: June 1, 1999Assignee: Herberts Gesellschaft Beschrankter HaftungInventors: Bettina Vogt-Birnbrich, Armin Gobel, Wilfried Collong, Birgit Kleuser
-
Patent number: 5907012Abstract: Water-based polyurethane-urea polymers having reduced migratory contaminants. The polymers are useful laminating adhesives and primers for flexible packaging having indirect food contact.Type: GrantFiled: April 8, 1996Date of Patent: May 25, 1999Assignee: H.B. Fuller Licensing & Financing, Inc.Inventors: Peter A. Voss, Thomas E. Rolando
-
Patent number: 5905132Abstract: The invention relates to coating materials containing a water-dilutable polyurethane resin as binder. The resin can be prepared by reacting some of the free isocyanate groups present in a prepolymer (I) which contains acidic groups and isocyanate groups with a blocking agent so as to form a prepolymer (II) which contains blocked isocyanate groups, the blocking agent being employed in a quantity such that the prepolymer (II) still contains on average at least one free isocyanate group per molecule, reacting the prepolymer (II) with a compound which contains at least one primary or secondary amino group and at least one hydroxyl group in the molecule, to give a polyurethane resin, and finally converting the polyurethane resin prepared in this way into a water-dilutable polyurethane resin by at least partial neutralization of the acidic groups.Type: GrantFiled: May 6, 1996Date of Patent: May 18, 1999Assignee: BASF Coatings AGInventors: Egon Wegner, Lutz-Werner Gross, Ralf Stein
-
Patent number: 5900457Abstract: The present invention is directed to aqueous polyurethane dispersions and aqueous polyurethane-acrylic dispersions, especially polymer dispersions formed from norbornane diisocyanate. The dispersions, and the dried polymers therefrom, are useful adhesives that provide enhanced bond strength when subjected to increased thermal and mechanical stress. Additionally, the inventive dispersions form polymers having increased adhesion compared to similar polymers based on cycloaliphatic diisocyanates which are free of a methylene bridge.Type: GrantFiled: October 31, 1997Date of Patent: May 4, 1999Assignee: H.B. Fuller Licensing & Financing, Inc.Inventors: Youlu Duan, Douglas U. Gwost, Yi Wei, Yuduo Zhu, Sonja E. Stammler, Michael J. Maksymkiw
-
Patent number: 5894071Abstract: Two-component adhesive-, sealing- or coating compositions are being described which are separately packed, and comprise the component A and the component D, whereby the component A is curing as soon as it gets in touch with water or the component D which contains the curing agent for the component A.The component D can be, or a component B containing an ingredient which is curing at the contact of water, or, possibly, at the contact with the component A, orthe component D can also be a mixture of solid matter and a volatile ingredient which is causing the cross-linking of the component A.The advantage of the novel two-component systems is that the component D is working as a curing agent for the component A, however, a surplus thereof is, or self-curing, or it does not leave a nuissance residue in the cured composition.Type: GrantFiled: December 6, 1996Date of Patent: April 13, 1999Assignee: Sika AG, vorm. Kaspar Winkler & Co.Inventors: Peter Merz, Norman E. Blank, Hans-Peter Tschan, Reinhard Ernst Wappmann, Lutz Zabel
-
Patent number: 5880215Abstract: The present invention relates to an aqueous coating composition containing prior to the reaction between components A) and B)A) 10 to 75 wt. %, based on the solids contents of components A) and C), of at least one dispersion or solution of a polyester polyol containing carboxylate and/or sulphonate groups, having a weight average molecular weight of 1,000 to 40,000, an OH number of 15 to 100 and an acid number of 2 to 40 based on all of the carboxylate, carboxyl and sulphonate groups,B) an ester-modified polyisocyanate having an average NCO functionality of 2 to 6 and containing 5 to 20 wt. % of ester groups (calculated as C.sub.3 O.sub.2, MW 68), 5 to 18 wt. % of isocyanate groups and 0 to 20 wt. % of chemically incorporated hydrophilic, nonionic groups, wherein the preceding percentages are based on the solids content of the ester modified polyisocyanate andC) 25 to 90 wt.Type: GrantFiled: December 24, 1997Date of Patent: March 9, 1999Assignee: Bayer CorporationInventors: Myron W. Shaffer, Kyli Martin, Shelley Parkerson-Hoy
-
Patent number: 5880209Abstract: A pigment paste forming resin having a viscosity of from about 50 to about 5,000 mPa and a solids content of from about 20 to about 40%, containing from about 20 to about 50 parts of a polyester urethane resin having an acid number of from about 10 to about 50, with from about 70 to about 100% of the acid groups being neutralized, the resin being prepared by the reaction of (a) one or more polyester polyols that do not contain any carboxyl groups, having an OH number of from about 35 to about 200, and a number average molecular weight of from about 500 to about 5000, mixed with from about 2 to about 30 wt. % based on the polyester polyol of one or more low molecular weight diols having a molecular weight of from about 60 to about 350, whereby a part of the low molecular weight diol contains at least one acid group capable of forming an anion, and with 0 to about 6 wt.Type: GrantFiled: February 27, 1997Date of Patent: March 9, 1999Assignee: Herberts GmbHInventors: Hans-Peter Patzschke, Armin Goebel, Jurgen Dobert, Reinhard Windmann
-
Patent number: 5880190Abstract: A water-based coating composition and methods of making and using the same are disclosed. It is suitable for coating a variety of substrates including polyolefinic substrates such as polypropylene, and operates without aromatic organic solvents.Type: GrantFiled: October 21, 1997Date of Patent: March 9, 1999Assignee: A-Line Products CorporationInventor: Alger E. Laura
-
Patent number: 5872182Abstract: A water-based sulfonated polyurethane composition and footwear manufactured using the composition as as an adhesive, coating and primer. The sulfonated polyurethane is a reaction product ofa) at least one polyisocyanate;b) at least one alkylene diol;c) at least one sulfonated polyester polyol wherein the sulfo groups thereof are present as alkali metal salts; andd) at least one dihydroxy carboxylic acid, or salt thereof. The composition may also be modified to include a dispersed polymer or copolymer of an ethylenically unsaturated monomer. Such mofified compositions may be obtained by preparing the sulfonated polyurethane in the presence of an ethylenically unsaturated monomer and subsequently subjecting the mixture to free-radical polymerization conditions.Type: GrantFiled: November 21, 1995Date of Patent: February 16, 1999Assignee: H. B. Fuller Licensing & Financing, Inc.Inventors: Youlu Duan, Sonja Stammler, Jillian H. Ierien, Brian L. Marty
-
Patent number: 5863980Abstract: A process for preparing a polyurethane prepolymer containing carboxylic group(s), or both carboxylic group(s) and double bond(s), which comprises the steps of 1) preparing a diol or triol monomer having carboxylic group(s), or having both carboxylic group(s) and double bond(s) by performing an addition reaction of at least one acid anhydride(s) which may contain double bond(s), with at least one triol or tetraol derivative(s) containing three or four hydroxyl groups in a molar ratio from 0.5:1 to 2:1; and then 2) reacting the obtained diol or triol monomer, or their mixture with a polyol and a diisocyanate or a diisocyanate polymer to give polyurethane prepolymer having an NCO content of 0.1 to 30%, is disclosed. In addition, a process for preparing a water-stable aqueous polyurethane dispersion by neutralizing, dispersing, and chain extending the polyurethane prepolymer obtained above is provided.Type: GrantFiled: December 20, 1996Date of Patent: January 26, 1999Assignee: Hepce Chem Co., Ltd.Inventors: Keun-Bae Choi, Ki-Soo Kim, Hyoung-Sug Kim, Seog-Jae Lee
-
Patent number: 5863983Abstract: A blocked hydrophilic polyurethane with molecular weight of 500.about.40,000, 5.about.70% solid content and 5.about.200 milliequivalent per 100 g polymer of sulfonic acid salt, can be prepared from following reactants:a. Organic isocyanates;b. Polyols, including polyether polyol, polyester polyol, polycarbonate, and polycaprolactone, that can participate in the polyaddition reactions with isocyanates.c. Polyols containing sulfonate group.d. Organic blocking agents capable of reacting with isocyanates.The blocked hydrophilic PU resins formed from above reactants can be applied for the anti-wrinkle treatment of cellulosic textiles with excellent performance.Type: GrantFiled: August 25, 1997Date of Patent: January 26, 1999Assignee: China Textile InstituteInventors: Jongfu Wu, Cheng Kun Lin, Wen-Tung Chen
-
Patent number: 5861470Abstract: The invention discloses two-component water-based laminating adhesives, comprising aqueous polyurethane dispersions and water dispersible polyisocyanates based on the isocyanurates of hexamethylene diisocyanate, having enhanced machining characteristics. The invention further discloses a method for the preparation of dry-bond laminates having enhanced properties including dry-bond clarity and water resistance.Type: GrantFiled: March 7, 1997Date of Patent: January 19, 1999Assignee: H. B. Fuller Licensing & Financing, Inc.Inventors: Peter A. Voss, Thomas E. Rolando
-
Patent number: 5859122Abstract: A water-dispersable polycarbonate polyurethane resin composition obtained by creating an emulsified dispersion of a urethane prepolymer with isocyanate groups at the ends in water in the presence of an emulsifying agent if necessary, and then extending the ends with a polyamine compound containing 2 or more amino groups and/or imino groups in the molecule, wherein the polyol component used for production of the urethane prepolymer contains a polycarbonate polyol as a portion thereof, and the polyisocyanate component comprises at least 2 polyisocyanates. The composition gives a soft and resilient hand quality to treated fabrics, can be stably and reasonably produced, has excellent film formability in a suitable state of aqueous dispersion, and also has excellent water resistance, light fastness, heat resistance, oil resistance and solvent resistance.Type: GrantFiled: March 13, 1997Date of Patent: January 12, 1999Assignee: Nicca Chemical Co., Ltd.Inventor: Shinichi Umeya
-
Patent number: 5859118Abstract: The present invention relates to aqueous dispersions which containA) 30 to 90% by weight, based on the solids content of A) and B), of polyurethane/ureas containing 0.5 to 6% by weight, based on the weight of the polyurethane/ureas, of alkoxysilane groups (calculated as Si, MW 28) andB) 10 to 70% by weight, based on the solids content of A) and B), of colloidal silica.The present invention relates to coatings prepared from these aqueous dispersions.Type: GrantFiled: December 17, 1997Date of Patent: January 12, 1999Assignees: Bayer Corporation, Bayer AktiengesellschaftInventors: Richard R. Roesler, Lutz Schmalstieg, Lyuba K. Gindin
-
Patent number: 5854332Abstract: Aqueous dispersions of urethane polymers and vinyl polymers (e.g., acrylics) that provide water-based coating compositions with good adhesion following humidity exposure are further improved by providing branching chain extension of the polyurethane. The branched polymers provide improved metallic pigment orientation in coating compositions. Branching is provided by the use of chain extending agents selected from polyamines having at least three primary amine groups and polyols having at least three hydroxyl groups. The vinyl monomers are polymerized in the presence of the aqueously dispersed polyurethane.Type: GrantFiled: December 20, 1996Date of Patent: December 29, 1998Assignee: PPG Industries, Inc.Inventors: Shanti Swarup, Anbazhagan Natesh, Norene E. Fortuna, Kurt G. Olson
-
Patent number: 5854329Abstract: This invention relates to a water-thinnable dispersion of one or more cationically modified and urethane-modified (meth)acrylic copolymers, which are produced by the solution polymerisation of unsaturated monomers which are polymerisable by a radical mechanism, or of a mixture of such monomers. Coating media based on this dispersion are particularly suitable for the production of base coats in multi-layer coatings, particularly in the coating of vehicles and vehicle parts.Type: GrantFiled: March 17, 1997Date of Patent: December 29, 1998Assignee: Herberts GmbHInventors: Bettina Vogt-Birnbrich, Armin Gobel
-
Patent number: 5854338Abstract: The present invention relates to a binder composition containinga) 30 to 90 wt. % of an aqueous, hydroxy- and/or amino-functional resin dispersion andb) 10 to 70 wt. % of a curing agent containing alkoxysilyl groups and having a free isocyanate group content of 10 to 23 wt. % and a viscosity of 50 to 10000 mPa.multidot.s at 23.degree. C.,wherein the molar ratio of the hydroxyl groups of component a) to the isocyanate groups of component b) is 0.5:1 to 2:1.The present invention also relates to the use of these binder compositions in coating and sealing compositions.Type: GrantFiled: April 9, 1998Date of Patent: December 29, 1998Assignee: Bayer AktiengesellschaftInventors: Wieland Hovestadt, Lutz Schmalstieg, Christian Wamprecht, Karl-Ludwig Noble
-
Patent number: 5854337Abstract: The invention relates to an aqueous binder dispersion for physically drying coating agents, which contains a mixture ofA) 20-80 wt. % of one or more, carbonate group-containing polyurethanes with a number average molecular weight (Mn) of 70,000 to 500,000 in the form of an aqueous dispersion, andB) 20-80 wt. % of one or more carbonate group-free and preferably urea group-free polyurethane resins containing ionic groups, with a number average molecular weight (Mn) of 10,000 to 300,000 and an acid value of 5 to 50, in the form of an aqueous dispersion,the wt. % of the components A) and B), in each case referred to the resin solids, amounting to 100%.Type: GrantFiled: October 22, 1997Date of Patent: December 29, 1998Assignee: Herberts Gesellschaft Mit Beshrankter HaftungInventors: Klaus Wandelmaier, Stefan Wiggershaus
-
Patent number: 5852104Abstract: Aqueous dispersions containing a polyurethane built up froma) diisocyanates having 4 to 30 carbon atoms,b) diols, of whichb.1) from 10 to 100 mol %, based on the total amount of the diols (b), have a molecular weight of from 500 to 5000 and are built up fromb1.1) (C.sub.4 - to C.sub.30 -alkyl)succinic acid and/or (C.sub.4 - to C.sub.30 -alkenyl)succinic acid,b1.2) from 0 to 60 mol %, based on component (b1.1), of a dicarboxylic acid which is different from component (b1.1), andb1.3) a diol having a molecular weight of from 60 to 500 g/mol,b.2) from 0 to 90 mol %, based on the total amount of the diols (b), have a molecular weight of from 60 to 500 g/mol, andb.Type: GrantFiled: January 27, 1997Date of Patent: December 22, 1998Assignee: BASF AktiengesellschaftInventors: Nicholas Kokel, Karl Haberle, Kuno Beutler, Jurgen Reichert, Peter Weyland, Gabriele Dralle-Voss, Knut Oppenlander, Michael Zirnstein, Gerlinde Tischer, Bernd Guettes, Ulrike Licht
-
Patent number: 5852105Abstract: Aqueous two-component dispersions comprising a) a polyurethane carrying anionic groups which make the polyurethane dispersible in water (component a), b) from 0.04 to 1.5 mol of NCO groups in the form of a water-emulsifiable polyisocyanate (component b) per kg of component (a), and c) from 0.05 to 40 mol of tertiary amino groups in the form of a tertiary alkanolamine (component c) per mole of NCO groups in the form of component (b).Type: GrantFiled: April 30, 1997Date of Patent: December 22, 1998Assignee: BASF AktiengesellschaftInventors: Renate Wustefeld, Ulrike Licht
-
Patent number: 5852111Abstract: Disclosed is a polyisocyanate composition which comprises: (a) a hydrophilic polyisocyanate comprising at least one base polyisocyanate selected from an aliphatic and/or an alicyclic diisocyanate, and a polyisocyanate derived therefrom, and a nonionic hydrophilic group, bonded to the polyisocyanate, containing therein 5 to 50 repeating ethylene oxide units in terms of the average number of the units, wherein the hydrophilic group is present in an amount of from 2 to 50% by weight, based on the total weight of the base polyisocyanate and the hydrophilic group; and (b) 0.5 to 20% by weight, based on the total weight of components (a) and (b), of a substantially water-free ionic surfactant. The polyisocyanate composition exhibits not only excellent dispersibility in water, but also exhibits high stability in the form of an aqueous dispersion thereof, since a reaction between the terminal isocyanate groups and water is suppressed.Type: GrantFiled: October 10, 1997Date of Patent: December 22, 1998Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Shinichiro Watanabe, Ichiro Ibuki
-
Patent number: 5852072Abstract: An erasable ink composition contains a water-insoluble polymeric dye obtained from the polymerization of at least two coreactive polyfunctional monomers with at least one of the monomers possessing a dye moiety covalently bonded thereto. The ink is intended for use in any of a variety of marking instruments, in particular, a ball-point pen.Type: GrantFiled: May 20, 1996Date of Patent: December 22, 1998Assignee: Bic CorporationInventors: Jeffery H. Banning, Wayne A. Chandler, David C. Villiger, Aiying Wang, Barry W. Chadwick
-
Patent number: 5852106Abstract: The present invention relates to aqueous polyurethane coating compositions wherein the binder containsa) a polyol component, which is soluble or dispersible in water and is the reaction product of a polyisocyanate component containing 50 to 100 wt. % of 4,4'-diisocyanatodicyclohexylmethane, a polyol component containing one or more polyether polyols and having an OH number of 25 to 350 mg KOH/g solids and an isocyanate-reactive component containing at least one group capable of salt formation andb) a polyisocyanate component, which is soluble or dispersible in water, has blocked isocyanate groups and is the reaction product of a polyisocyanate having an isocyanurate group content of 2 to 30 wt.Type: GrantFiled: May 1, 1997Date of Patent: December 22, 1998Assignee: Bayer AktiengesselschaftInventors: Oswald Wilmes, Beate Baumbach, Klaus Nachtkamp, Eberhard Konig, Randall Dearth, Manfred Bock, Wolfhart Wieczorrek
-
Patent number: 5840823Abstract: Aqueous polyurethane dispersions having latent crosslinking properties containI) a disperse phase (P.I), containingIa) a polyurethane (PUR.Ia) which, in addition to groups which impart water dispersibility to the polyurethane, carries groups which have a C--C double bond and in which the double bond is activated by a carbonyl group bonded directly therewith, orIb) a mixture ofa polyurethane (PUR.Ib) which carries groups which impart water dispersibility to the polyurethane but not groups which have a C--C double bond and in which the double bond is activated by a carbonyl group bonded directly therewith anda compound (V.I) which differs from the polyurethanes PUR.Ia and PUR.Ib, and which carries groups which have a C--C double bond and in which the double bond is activated by a carbonyl group bonded directly therewith andII) a disperse phase (P.II) containing a compound which differs from the compounds (PUR.Ia), (PUR.Ib) and (V.Type: GrantFiled: February 25, 1997Date of Patent: November 24, 1998Assignee: BASF AktiengesellschaftInventors: Ulrike Licht, Nicolas Kokel, Karl Haberle, Renate Wustefeld
-
Patent number: 5834554Abstract: A process for the preparation of sulfonated polyurethane-urea polymers, which are useful film to film laminating adhesives for flexible packaging in which the urethane-urea polymer component has no amide linkages. The water-based sulfonated polyurethane prepolymers are processed at reduced temperatures and are substantially free of volatile and/or leachable contaminants.Type: GrantFiled: March 5, 1996Date of Patent: November 10, 1998Assignee: H. B. Fuller Licensing & Financing, Inc.Inventors: Youlu Duan, Douglas U. Gwost, Lowell Lindquist, Scott Rhein, Thomas E. Rolando, Sonja Stammler, Peter A. Voss, Michael J. Dockniak
-
Patent number: 5834555Abstract: The present invention relates to an aqueous multicomponent polyurethane coating composition comprisingA) a water-dilutable polyaddition resin (A1) and/or polycondensation resin (A2) containing hydroxyl and carboxylate groups and having an OH number of from 40 to 200 mg of KOH/g, preferably from 60 to 140 mg of KOH/g, an acid number of from 15 to 100 mg of KOH/g, preferably from 25 to 50 mg of KOH/g, and a glass transition temperature of from -40.degree. C. to +60.degree. C., preferably from -20.degree. C. to +40.degree. C.,B) a polyisocyanate component (B) as crosslinking agent andC) at least one additive,characterized in that it contains as additive a carbodiimide component (C) which has a content of carbodiimide groups --N.dbd.C.dbd.N-- of from 2 to 30% by weight, on average at least 0.Type: GrantFiled: November 4, 1996Date of Patent: November 10, 1998Assignee: BASF Lacke + Farben, AGInventors: Uwe Meisenburg, Egbert Nienhaus, Rolf Seidemann, Bernd Mayer, Anthony J. Tye
-
Patent number: 5827919Abstract: Fluorourethane additives for water-dispersed coating compositions comprising the product of the reaction of 1) at least one diisocyanate, or polyisocyanate or a mixture of polyisocyanates containing at least three isocyanate groups per molecule, (2) at least one fluorochemical compound containing at least one Zerewitinoff hydrogen in an amount sufficient to react with 5% to 80% of the isocyanate groups in the diisocyanate or polyisocyanate, (3) at least one compound of the formula R.sub.10 --(R.sub.2).sub.k --YH in an amount sufficient to react with 5% to 80% of the isocyanate groups in the diisocyanate or polyisocyanate and wherein R.sub.10 is a C.sub.1 -C.sub.18 alkyl, C.sub.1 -C.sub.18 omega-alkenyl radical, or C.sub.1 -C.sub.18 omega-alkenoyl; R.sub.2 is --C.sub.n H.sub.2 n-- optionally end-capped with --?OCH.sub.2 C(R.sub.4)H!.sub.p --, --?OCH.sub.2 C(CH.sub.2 Cl)H!p--, or --C(R.sub.5) (R.sub.6) (OCH.sub.2 C?CH.sub.2 Cl!H).sub.p --, wherein R.sub.4, R.sub.5, and R.sub.Type: GrantFiled: August 7, 1996Date of Patent: October 27, 1998Assignee: E. I. du Pont de Nemours and CompanyInventor: Donald Douglas May
-
Patent number: 5821297Abstract: The invention refers to an aqueous dispersion for the production of an at least two-component polyurethane-modified dispersion adhesive especially suited for the lamination of fabrics, foil and such materials onto carrier materials. The dispersion contains at least one hydroxyl-group containing polymer compound to react with a dispersible hardener to be added to the dispersion, the hardener itself containing a di- or polyfunctional isocyanate compound. The dispersion contains either a (co) polymer compound derived of ethylene vinylacetate (EVA) in addition to a (co)polymer compound derived of (meth) acrylic acid (derivative) or one of these two (co)polymer compounds besides one plasticizer.Type: GrantFiled: October 19, 1995Date of Patent: October 13, 1998Assignee: H. B. Fuller Licensing & Financing, Inc.Inventors: Christian W. Arnold, Werner H. Pimpl
-
Patent number: 5821294Abstract: A water-based adhesive that is delivered in a stable one-part system comprises (i) an emulsion of a vinyl and/or acrylic polymer; (ii) a water-dispersed ionic or nonionic polyurethane; (iii) a polyethylenimine; and (iv) a carbodiimide.Type: GrantFiled: August 30, 1996Date of Patent: October 13, 1998Assignee: National Starch and Chemical Investment Holding CorporationInventor: Witold Perlinski
-
Patent number: 5817249Abstract: Invention relates to new carbodiimide compound obtainable from reaction mixture comprising an isocyanate compound and a monofunctional alcohol in a non-reactive solvent in the presence of a suitable catalyst, characterized in that the isocyanate compound and the monofunctional alcohol, except for the hydroxy group, are free from isocyanate reactive hydrogen atoms and the monofunctional alcohol is a branched aliphatic alcohol containing at least 8 carbon atoms, and to compositions comprising a fluorochemical oil and water repellent agent and said carbodiimide compound.Type: GrantFiled: October 23, 1995Date of Patent: October 6, 1998Assignee: Minnesota Minning and Manufacturing CompanyInventors: Frans A. G. Audenaert, Hugo R. Lens
-
Patent number: 5804647Abstract: The present invention relates to aqueous polyurethane-urea dispersions which are film forming at temperatures of .ltoreq.20.degree. C. in the absence of film forming additives, dry at room temperature to yield films having a hardness according to DIN 53 157 (Konig pendulum hardness) of .gtoreq.100 seconds, in which the polyurethane-ureas have a urethane group content (calculated as --NH--CO--O--, molecular weight 59) of 7 to 20 wt. %, and a urea group content (calculated as -NH-CO-N, molecular weight 57) of 5 to 18 wt. %, and contain 15-70 wt. %, based on resin solids, of structural units prepared by incorporating 1-methyl-2,4- and/or -2,6-diisocyanatocyclohexane in the form of urethane and/or urea groups. The present invention also relates to a process for the production of these aqueous polyurethane-urea dispersions and to their use in coating compositions.Type: GrantFiled: February 21, 1997Date of Patent: September 8, 1998Assignee: Bayer AktiengesellschaftInventors: Klaus Nachtkamp, Oswald Wilmes, Eberhard Arning, Rolf Roschu
-
Patent number: 5800872Abstract: The present invention relates to a composition being an aqueous dispersion of a polyurethane in water, said composition comprising water and the reaction product of (a) a water-dispersible isocyanate-terminated polyurethane prepolymer having an isocyanate content of between 1 and 15% by weight. The prepolymer comprises the following: an organic polyisocyanate adduct mixture having an average isocyanate functionality of between 2.0 and 4.0, and (b) an isocyanate reactive chain extender having a specified ratio of isocyanate reactive moiety to isocyanate index of the polyisocyanate adduct mixture. The polyisocyanate mixture must contain some dimer; however, other polyisocyanates, such as diisocyanates and polyisocyanate trimers, are advantageously added to the mixture. Also disclosed is a process for preparing this composition, and a method for coating a substrate with the composition.Type: GrantFiled: June 17, 1996Date of Patent: September 1, 1998Assignee: Arco Chemical Technology, L.P.Inventors: Lawrence E. Katz, Augustin T. Chen, John W. Reisch, Richard J. Feegel
-
Patent number: 5798409Abstract: The present invention relates to two-part reactive polyurethane compositons and the cured coatings prepared therefrom. The invention also relates to particular compositions and cured coatings therefrom that exhibit high damping character, excellent scratch-resistance, excellent mar-resistance, and self-healing characteristics. The invention also relates to a novel polyurethane prepolymer useful in some ofthe compositions. The invention also relates to method of making certain coatings of the invention.Type: GrantFiled: April 1, 1997Date of Patent: August 25, 1998Assignee: Minnesota Mining & Manufacturing CompanyInventor: Chia-Tie Ho
-
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