Patents Represented by Attorney, Agent or Law Firm Thomas W. Roy
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Patent number: 6169141Abstract: The present invention relates to a coating composition containing: A) 25 to 50 wt. % of a polyisocyanate component, B) 5 to 20% wt. % of one or more polyaspartic acid esters C) 10 to 30 wt. % of one or more polyaldimines having a number average molecular weight of 112 to 600 D) 0.1 to 5.0 wt. % of an acetal corresponding to formula IV: E) 0.1 to 5.0 wt. % of castor oil. F) 0.1 to 10.0 wt. % of an organic solvent, G) 15 to 35 wt. % of a pigment and H) 0 to 10 wt. % of a coating additive other than D, F or G, wherein the sum of the percentages of components A to H is 100. The present invention also relates to the use of this coating composition as an anti-corrosive top coat.Type: GrantFiled: May 13, 1999Date of Patent: January 2, 2001Assignee: Bayer AktiengsellschaftInventors: Gerald Kurek, J{umlaut over (u)}rgen Schwindt, Peter Jahn
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Patent number: 6169140Abstract: The present invention relates to moisture-curable compositions containing a mixture of a) a polyisocyanate and b) a polyacrylate resin which has an alkoxysilane group content (calculated as Si, MW 28) of 0.2 to 4.5% by weight, based on the weight of the polyacrylate resin, and contains less than 0.2% by weight of hydroxy groups, based on the weight of the polyacrylate resin, wherein components a) and b) are present in amounts sufficient to provide an equivalent ratio of isocyanate groups to alkoxy groups, which are bound to Si, of 1.0:0.05 to 1.0:2.5. The present invention also relates to coatings, sealants and adhesives prepared from these compositions.Type: GrantFiled: April 28, 1999Date of Patent: January 2, 2001Assignee: Bayer CorporationInventors: Richard R. Roesler, Myron W. Shaffer
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Patent number: 6166111Abstract: An aqueous binder composition having a reduced tendency to yellow containingA) 20 to 95 wt-% of a water-dilutable organic polyol component that is present in the form of an aqueous solution or dispersion, contains one or more polymer-modified polyester resins which contain carboxylate groups and hydroxyl groups and has been prepared by the polymerization of olefinically unsaturated monomers in the presence of an unsaturated polyester resin that is copolymerized with the monomers andB) 5 to 80 wt-% of at least one heat-activatable cross-linking resin,wherein the percentages are based on the solids contents of components A) and B) and add up to 100%; and their use in heat-curable coating compositions.Type: GrantFiled: July 20, 1995Date of Patent: December 26, 2000Assignee: Bayer AktiengesellschaftInventors: Volker Schneider, Harald Blum, Lothar Kahl, Hans-Gunter Schmitz, Nusret Yuva
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Patent number: 6162891Abstract: The present invention relates to polyester polyols having hydroxyl numbers of 175 to 520 which are the reaction products ofa) 50 to 60 mole % of a polyol component containing(i) 0 to 39 mole % of one or more dihydric aliphatic or cycloaliphatic alcohols having at least 2 carbon atoms other than neopentyl glycol,(ii) 20 to 59 mole % of neopentyl glycol and(iii) 41 to 80 mole % of one or more at least trihydric aliphatic alcohols containing at least 3 carbon atoms andb) 40 to 50 mole % of a dicarboxylic acid component containing(iv) 0 to 60 mole % of one or more aliphatic or cycloaliphatic, saturated or unsaturated dicarboxylic acids or their anhydrides having at least 2 carbon atoms other than fumaric acid, itaconic acid and maleic acid or their anhydrides and(v) 40 to 100 mole % of one or more of fumaric acid, itaconic acid, maleic acid or their anhydrides,wherein the percentages set forth in a) and b) each add up to 100.Type: GrantFiled: December 9, 1994Date of Patent: December 19, 2000Assignee: Bayer AktiengesellschaftInventors: Christian Wamprecht, Michael Sonntag, Jurgen Meixner
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Patent number: 6156919Abstract: The present invention relates to a process for the preparation of aliphatic oligocarbonate diols bya) transesterifying dimethyl carbonate with aliphatic diols in the presence of soluble transesterification catalysts in a gas-liquid countercurrent apparatus to form oligocarbonates until the degree of conversion of the initial dimethyl carbonate is more than 80% andb) removing methanol and traces of dimethyl carbonate in an apparatus which generates gas bubbles in the oligocarbonates until the degree of capping of the terminal OH groups with methoxycarbonyl groups is less than 5%.Type: GrantFiled: December 15, 1999Date of Patent: December 5, 2000Assignee: Bayer AktiengesellschaftInventors: Reinhard Langer, Hans-Josef Buysch, Wieland Hovestadt, Martin Melchiors
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Patent number: 6153764Abstract: This invention relates to a process for preparing perylene pigment compositions by reaction of(a) a perylene tetracarboxylic compound;(b) about 0.01 to about 20% by weight, relative to the perylene tetracarboxylic compound, of a non-pigmentary cyclic anhydride or imide of formula (I) ##STR1## wherein W is O or NR.sup.1 (where R.sup.1 is hydrogen, a metal, or optionally substituted alkyl, cycloalkyl, aralkyl, or aryl), R.sup.2, R.sup.3, and R.sup.4 are various combinations of substituents and/or fused-on rings, and the dotted line is an optional double bond representing R.sup.2 --C.dbd.C--R.sup.3 ;(c) ammonia or a primary alkyl, aralkyl, or aryl amine; optionally in the presence of(d) a solvent and/or(e) one or more dispersants.Type: GrantFiled: January 25, 2000Date of Patent: November 28, 2000Assignee: Bayer CorporationInventors: Gregory R. Schulz, Michael J. Greene
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Patent number: 6153788Abstract: The present invention relates to a process for preparing unsaturated esters by azeo-tropically esterifyinga) monohydric or polyhydric alcohols orb) polyesters which contain at least two hydroxyl groups per molecule and are the reaction product of polyhydric alcohols with mono- or dibasis, saturated or aromatically unsaturated carboxylic acids,with ethylenically unsaturated carboxylic acids in the presence of an acid catalyst and subsequently reacting the acid catalyst and any unesterified carboxylic acid groups with ethylenically unsaturated monoepoxy compounds.Type: GrantFiled: August 7, 1998Date of Patent: November 28, 2000Assignee: Bayer AktiengesellschaftInventors: Wolfgang Fischer, Dieter Margotte, Jurgen Meixner
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Patent number: 6150458Abstract: The present invention relates to a process for preparing (meth)acrylic acid esters by1) reacting hydroxyl group-containing polyethers, polyesters or polyester ethers with (meth)acrylic acid in the presence of an acid esterification catalyst and a solvent to form (meth)acrylic acid esters, and2) reacting the acid esterification catalyst acid and unreacted (meth)acrylic acid with a compound containing two or more epoxide groups in the presence of the solvent used in step 1).Type: GrantFiled: July 21, 1999Date of Patent: November 21, 2000Assignee: Bayer AktiengesellschaftInventors: Jan Weikard, Wolfgang Fischer
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Patent number: 6150457Abstract: The present invention relates to compounds containing modified hydrazide groups and corresponding to formula I ##STR1## wherein R represents the residue obtained by removing the isocyanate groups from a monomeric polyisocyanate, a polyisocyanate adduct or an NCO prepolymer,X represents OR' or NHR' andR' represents a group which is inert to isocyanate groups under the conditions used to form the compound of formula I andn has a value of 2 to 6.The present invention also relates to one-component, thermoset coating compositions containing the compounds of formula I and a cross-linking component that is reactive with these compounds. Finally, the present invention relates coatings, sealants and adhesives prepared from these thermoset compositions.Type: GrantFiled: November 23, 1998Date of Patent: November 21, 2000Assignees: Bayer Corporation, Bayer AktiengesellscaftInventors: Sze-Ming Lee, Douglas A. Wicks, Eberhard Koenig, Carol L. Kinney, Karen M. Henderson
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Patent number: 6150476Abstract: The present invention relates to a mixture of ethylenically unsaturated polyurethanes containingI) 5 to 95% by weight, based on the weight of components I) and II), of ethylenically unsaturated polyurethanes which are substantially free from isocyanate groups and have a) a content of .beta.,.gamma.-ethylenically unsaturated ether groups (calculated as C.dbd.C, MW 24) incorporated through allophanate groups of 0.5 to 10% by weight, b) an allophanate group content (calculated as N.sub.2 C.sub.2 HO.sub.3, MW 101) of 1 to 20% by weight and c) a total content of ethylenically unsaturated groups of (calculated as C.dbd.Type: GrantFiled: December 23, 1998Date of Patent: November 21, 2000Assignee: Bayer CorporationInventors: Michael J. Dvorchak, Ligia Martin, Pamela C. Rozman
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Patent number: 6147155Abstract: The present invention relates to a process for preparing aqueous polyurethane dispersions in a multi-step process by forming an NCO prepolymer bya) reacting a cyclic diisocyanate with a compound containing one or two isocyanate-reactive groups and at least one carboxylic acid or carboxylate group at a molar ratio of cyclic diisocyanate to compound containing one isocyanate-reactive group of at least 1:1 or a molar ratio of cyclic diisocyanate to compound containing two isocyanate-reactive groups of at least 1.Type: GrantFiled: June 8, 1999Date of Patent: November 14, 2000Assignee: Bayer CorporationInventors: Kenneth P. Yonek, Yuliya Berezkin
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Patent number: 6143068Abstract: This invention relates to a process for preparing perylene pigment compositions by reaction of(a) a perylene tetracarboxylic compound;(b) about 0.01 to about 20% by weight, relative to the perylene tetracarboxylic compound, of a non-pigmentary cyclic anhydride or imide of formula (I) ##STR1## wherein W is O or NR' (where R.sup.1 is hydrogen, a metal, or optionally substituted alkyl, cycloalkyl, aralkyl, or aryl), R.sup.2, R.sup.3, and R.sup.4 are various combinations of substituents and/or fused-on rings, and the dotted line is an optional double bond representing R.sup.2 --C.dbd.C--R.sup.3 ;(c) ammonia or a primary alkyl, aralkyl, or aryl amine; optionally in the presence of(d) a solvent and/or(e) one or more dispersants.Type: GrantFiled: January 25, 2000Date of Patent: November 7, 2000Assignee: Bayer CorporationInventors: Gregory R. Schulz, Michael J. Greene
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Patent number: 6139918Abstract: The present invention relates to a process for preparing a coated substrate by coating the substrate with an aqueous dispersion, which may be physically cured to form a light stable, elastic coating, containingA) a polyol component containingA1) 20 to 60 wt. %, based on the resin solids content of polyol component A), of a polyester resin containing 10 to 60 wt. %, based on the weight of the polyester resin, of one or more aliphatic, saturated or unsaturated monocarboxylic acids having 8 to 30 carbon atoms, and 0.4 to 5 wt. %, based on the weight of the polyester resin, of one or more radically polymerizable .alpha.,.beta.-unsaturated mono- or di-carboxylic acids having 3 to 8 carbon atoms, or their anhydrides, andA2) 40 to 80 wt. %, based on the resin solids content of polyol component A), of a polyacrylate, which is prepared in the presence of component A1), andB) 1 to 70 wt.Type: GrantFiled: August 5, 1999Date of Patent: October 31, 2000Assignee: Bayer AktiengesellschaftInventors: Christoph Irle, Harald Blum, Joachim Petzoldt, Heino Muller
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Patent number: 6136939Abstract: Oligomers soluble in organic solvents and obtainable by condensing identical or different monomers of the formula ##STR1## in which R.sub.1 means C.sub.1 -C.sub.6 alkyl or C.sub.6 -C.sub.14 aryl,R.sub.2 means hydrogen, alkyl or aryl, if b is 1, or alkyl or aryl, if b is 2 or 3,R.sub.3 means alkyl or aryl,m means 3 to 6,q means 2 to 10 and,b means 1, 2 or 3,are suitable for coating plastics, mineral and metallic substrates and glass.Type: GrantFiled: November 8, 1999Date of Patent: October 24, 2000Assignee: Bayer AktiengesellschaftInventors: Michael Mager, Markus Mechtel
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Patent number: 6130285Abstract: The present invention relates to a solvent-free, low viscosity binder composition which contains, in amounts sufficient to provide an NCO:OH equivalent ratio of 0.5:1 to 2.0:1,A) a polyisocyanate component containing one or more organic polyisocyanates andB) a solvent-free polyhydroxy component having a hydroxyl group content of 3.0 to 18 wt. % and a viscosity at 23.degree. C. of 200 to 10,000 mPa.s, which containsB.sub.1) a hydroxy-functional polyacrylate component which is prepared by polymerizing a mixture of olefinically unsaturated monomers in which at least one monomer is hydroxy-functional in the presence ofB.sub.2) a compound containing ether groups and having one or more hydroxy groups.The invention also relates to the use of this binder composition in solvent-free two-component polyurethane coating compositions for coating metallic or mineral substrates.Type: GrantFiled: August 14, 1997Date of Patent: October 10, 2000Assignee: Bayer AktiengesellschaftInventors: Martin Melchiors, Jurgen Schwindt, Gerhard Ruttmann, Wieland Hovestadt, Joachim Probst, Josef Pedain
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Patent number: 6127514Abstract: The present invention relates to one-component, thermoset compositions containinga) compounds containing modified hydrazide groups and corresponding to formula I ##STR1## wherein p2 R represents the residue obtained by removing the isocyanate groups from a monomeric polyisocyanate, a polyisocyanate adduct or an NCO prepolymer,X represents OR' or NHR' andR' represents a group which is inert to isocyanate groups under the conditions used to form the compound of formula I andn has a value of 2 to 6,b) compounds containing two or more epoxy groups andc) a basic catalyst.The present invention also relates to coatings, adhesives and sealants prepared from these thermoset compositions.Type: GrantFiled: November 23, 1998Date of Patent: October 3, 2000Assignees: Bayer Corporation, Bayer AktiengesellschaftInventors: Douglas A. Wicks, Sze-Ming Lee, Eberhard Koenig, Carol L. Kinney, Karen M. Henderson
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Patent number: 6117966Abstract: The present invention is directed to coating compositions which have long pot lives and may be rapidly cured under ambient conditions wherein the binder containsa) a polyisocyanate component containingi) 5 to 100% by weight of a monoallophanate andii) 0 to 95% by weight of another polyisocyanate adduct, andb) an aldimine based on the reaction product of diamino dicyclohexyl methane with an aldehyde corresponding to the formula:O=CHCH(R.sub.1)(R.sub.2)wherein R.sub.1 and R.sub.2 may be the same or different and represent optionally substituted hydrocarbon radicals, or R.sub.1 and R.sub.2 together with the .beta.-carbon atom form a cycloaliphatic or heterocyclic ring.Type: GrantFiled: December 21, 1993Date of Patent: September 12, 2000Assignee: Bayer CorporationInventors: Lanny D. Venham, Sharon D. Hicks, Douglas A. Wicks
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Patent number: 6114436Abstract: The present invention relates to moisture-curable compositions containinga) 5 to 95%, based on the weight of components a) and b), of polyisocyanates having (cyclo)aliphatically-bound isocyanate groups andb) 5 to 95%, based on the weight of components a) and b), of compounds containing alkoxysilane groups and corresponding to the formula ##STR1## wherein X represents identical or different organic groups which are inert to isocyanate groups below 100.degree. C., provided that at least one of these groups is an alkoxy group andY represents a linear or branched alkylene radical containing 1 to 8 carbon atoms. The present invention also relates to coatings, adhesives or sealants prepared from these moisture-curable compositions.Type: GrantFiled: April 20, 1999Date of Patent: September 5, 2000Assignee: Bayer CorporationInventor: Richard R. Roesler
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Patent number: 6111010Abstract: The present invention relates to aqueous solutions or dispersions of compounds, which contain 0.5 to 6% by weight of alkoxysilane and/or silanol groups (calculated as Si, MW 28), based on the weight of the compounds containing alkoxysilane groups, and are substantially free from isocyanate groups and chemically incorporated hydrophilic groups, wherein the alkoxysilane groups are initially incorporated by the reaction of a polyisocyanate with an amino compound corresponding to formula I ##STR1## wherein X represents identical or different organic groups which are inert to isocyanate groups below 100.degree. C., provided that at least one of these groups is an alkoxy group,Y represents a linear or branched alkylene group having 1 to 8 carbon atoms andR.sub.1 represents an organic group which is inert to isocyanate groups at a temperature of 100.degree. C. or less.The present invention also relates to coating, adhesive or sealing compositions containing these aqueous compounds as the binder.Type: GrantFiled: December 23, 1998Date of Patent: August 29, 2000Assignee: Bayer CorporationInventors: Poli C. Yu, William A. Corso, Richard R. Roesler
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Patent number: 6111053Abstract: The invention relates to olefinically unsaturated polyisocyanates containing allophanate groups and having an NCO content of 6 to 20% by weight, an iodine value of 15 to 150, a content of hydrocarbon chains containing 12 to 30 carbon atoms of 100 to 700 mg/g and a content of allophanate groups of 10 to 300 mg/g, to a process for their production by reaction of a polyisocyanate component containing urethane groups with excess polyisocyanates, and to a one-component coating composition containing these olefinically unsaturated polyisocyanates as binders.Type: GrantFiled: May 8, 1995Date of Patent: August 29, 2000Assignee: Bayer AktiengesellschaftInventors: Martin Brahm, Eberhard Arning, Lutz Schmalstieg, Harald Mertes, Jurgen Schwindt