Mixed With Aldehyde Or Aldehyde Derivative Reactant Or Polymer Therefrom Patents (Class 525/456)
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Patent number: 6635724Abstract: A crosslinking agent is provided which is an ungelled reaction product of (a) an aminoplast resin and (b) a compound having active hydrogen groups reactive with the aminoplast resin (a) such that the crosslinking agent is essentially free of functional groups reactive with aminoplast resin and has a glass transition temperature of at least 10° C. Also provided is a method for preparing the crosslinking agent. Further provided is a curable powder coating composition including (A) a polymer having a glass transition temperature of at least 30° C. containing reactive functional groups and (B) the previously described crosslinking agent. Additionally provided is a multilayer composite coating composition including a base coat deposited from a film-forming composition and a top coat over the base coat deposited from the previously described powder coating composition. Coated substrates are also provided.Type: GrantFiled: July 31, 2001Date of Patent: October 21, 2003Assignee: PPG Industries Ohio, Inc.Inventors: Ronald R. Ambrose, Anthony M. Chasser, Shengkui Hu
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Patent number: 6624279Abstract: The invention provides water-soluble, &bgr;-hydroxy carbamate-functional materials and coating compositions, especially waterborne coating compositions, containing the carbamate-functional materials. The invention further provide a coating prepared from the coating composition and a coated substrate, especially an automotive substrate, having the coating thereon.Type: GrantFiled: January 9, 2002Date of Patent: September 23, 2003Assignee: BASF CorporationInventors: Walter H. Ohrbom, David J. Law, Patricia A. Herrel
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Patent number: 6592944Abstract: The present invention provides for an etch and mar resistant low VOC clear coating composition most suitable for use as a top clear coat in multi-layered OEM or refinish automotive coatings. The coating composition includes polyisocyanate, polyester polyol and melamine components, where more than half of total composition solids include the polyester polyol and melamine components. The polyisocyanate component includes an aliphatic polyisocyanate. The composition may be formulated as a two-pack or one-pack coating composition, wherein the isocyanate functionalities are blocked with a blocker such as a mono-alcohol.Type: GrantFiled: August 8, 2001Date of Patent: July 15, 2003Assignee: E. I. du Pont de Nemours and CompanyInventors: Peter William Uhlianuk, John David Nordstrom
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Patent number: 6573341Abstract: A molded polyurethane body is obtainable by reacting: a) one or more aliphatic polyols having a molecular weight of 450 to 6000 g/mol and a hydroxyl value of 10 to 235; b) with aliphatic and/or cycloaliphatic diisocyanates in an equivalent ratio of diisocyanate to polyol of 1.2:1.0 to 16.0:1.0; c) with diols as chain lengthening agents having a molecular weight of 60 to 450 g/mol, the NCO index formed from the quotient, which is multiplied by 100, of the equivalent ratio of isocyanate groups to the sum of the hydroxyl groups of polyol and chain lengthening agents lying within a range of 90 to 105; and d) with an at least bifunctional reaction component, which is suitable for subsequent cross-linking.Type: GrantFiled: May 25, 2001Date of Patent: June 3, 2003Assignees: Carl Freudenberg KG, Magna Eybl Systemtechnik GmbHInventors: Horst Mühlfeld, Thomas Schauber, Silke Wagener
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Patent number: 6538074Abstract: The combination of powder coatings usable in a coating method comprising mixing two or more powder coatings of which each color is different, wherein each of the powder coatings fuses with each other and is heat-cured, to thereby give a coating film having a homogenous hue. A powder coating composition comprising two or more powder coatings of which each color is different, wherein each of the powder coatings fuses with each other and is heat-cured, to thereby give a coating film having a homogenous hue. A coating method comprising the steps of (a) applying to a substrate two or more powder coatings, of which each color is different; (b) heating to fuse with each other each of the two or more powder coatings applied in step (a); and (c) curing the resulting fused product in step (b), to give a coating film having a homogeneous hue.Type: GrantFiled: May 30, 2000Date of Patent: March 25, 2003Assignee: Nippon Paint Co., Ltd.Inventors: Yukiya Sato, Hisakazu Tajima, Katsutoshi Aoki, Takehiko Tohjo, Yasunori Inagaki, Masayuki Maruta, Shingo Tanaka
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Patent number: 6512047Abstract: A polyoxymethylene resin composition, having enhanced tensile elongation, thermal stability, processibility and impact resistance, comprises: (i) from 45 to less than 97% % by weight of a polyoxymethylene resin (Component A); (ii) from 1 to less than 20% by weight of a thermoplastic polyester elastomer (Component B); (iii) from 2 to 35% by weight of a thermoplastic polyurethane elastomer (Component C); and (iv) from 0.1 to less than 10% by weight of a maleic anhydride-grafted aliphatic polyolefinic rubbery polymer (Component D), based on the total weight of Components A, B, C and D.Type: GrantFiled: May 15, 2001Date of Patent: January 28, 2003Assignee: Korea Engineering Plastics Co., Ltd.Inventors: Tak-Kyu Kim, Jong-Taek Lee, Ki-Chang Hong
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Patent number: 6478998Abstract: Hybrid resins formed of an acylated phenol-formaldehyde (PF) resin and a polymeric phenyl isocyanate (pMDI) resin have extended shelf stability, yet cure at a rate faster than any of its components when used in conventional flakeboard, strandboard or other board making processes.Type: GrantFiled: September 13, 2000Date of Patent: November 12, 2002Assignee: Borden Chemical, Inc.Inventors: Todd R. Miller, Lewis D. Creel, William D. Detlefsen
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Patent number: 6455631Abstract: The present invention relates to aqueous polyurethane dispersions wherein the polyurethanes contain terminal hydrazide groups and correspond to the formula wherein the terminal, modified hydrazide groups are present in an amount of 1 to 25% by weight [calculated as C(O)—NH—NH—C(O), MW 84], based on the weight of the polyurethanes, and wherein X represents OR′ or NHR′, R represents the residue obtained by removing the isocyanate groups from an NCO prepolymer, R′ represents a group which is inert to Isocyanate groups under the conditions used to form the polyurethane of in formula I, R″ represents a divalent, linear or branched aliphatic group containing 2 to 10 carbon atoms, provided that there are at least two carbons between the oxygen atoms, wherein the aliphatic group may optionally be substituted by heteroatoms to form ether or ester groups, m is 0 or 1 and n is 2 to 4.Type: GrantFiled: December 1, 2000Date of Patent: September 24, 2002Assignees: Bayer Corporation, Bayer AktiengesellschaftInventors: Harald Blum, Lyubov K. Gindin, Karen M. Henderson, Patricia B. Jacobs, Sze-Ming Lee, Brian Long, Robert A. Sylvester, Douglas A. Wicks
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Patent number: 6451930Abstract: A film-forming composition, typically a topcoat, having improved adhesion to certain commercially available adhesives. The composition includes a curable film-forming polymer, typically an acrylic and/or a polyester polymer, with carbamate and/or urea groups. The composition further includes a material containing one or more hydrolyzable silyl groups. The hydrolyzable silyl group-containing material optionally can be a polymeric or oligomeric. Also disclosed are a method of applying the above-described film-forming composition to a substrate and the coated article prepared by such a method.Type: GrantFiled: March 14, 2000Date of Patent: September 17, 2002Assignee: PPG Industries Ohio, Inc.Inventors: John W. Burgman, David C. Martin, Soner Kilic, Jane N. Valenta
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Patent number: 6437030Abstract: A process for forming a thermoplastic vulcanizate compromising the steps of dynamically vulcanizing a rubber within a blend that comprises the rubber and a thermoplastic polymer, where said step of vulcanizing is carried out by using a phenolic resin in the presence of a catalyst system formed by combining a metal halide and a metal carboxylate. Also, a thermoplastic vulcanizate having low moisture pick-up with a technologically useful cure.Type: GrantFiled: May 24, 2000Date of Patent: August 20, 2002Assignee: Advanced Elastomer Systems, L.P.Inventors: Aubert Coran, Sabet Abdou-Sabet
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Patent number: 6433106Abstract: A toughened polyacetal resin composition, and a process for making same, is provided by mixing a polyacetal masterbatch component, prepared from polyacetal and a relatively large amount of polyurethane, with a polyacetal dilution component so as to generate a blended composition in which the content of the thermoplastic polyurethane is about 1 to about 15 wt % of the total weight of the blended composition.Type: GrantFiled: June 9, 2000Date of Patent: August 13, 2002Assignee: E. I. du Pont de Nemours & CompanyInventors: Hiroshi Mori, Kenichi Shinohara, Edmund Arthur Flexman
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Patent number: 6420472Abstract: There is described a curable coating composition having at least one effect pigment which, upon cure, exhibits substantially improved orientation of the effect pigment and a corresponding improvement in appearance. The composition comprises: (A) a carbamate-functional component having a hydrophobicity equivalent to or greater than that of a carbamate-functional compound (A′) which is the reaction product of: (1) a compound comprising a plurality of hydroxyl groups, at least one of which is the result of a ring-opening reaction between an epoxy group and an organic acid group, and (2) cyanic acid or a compound comprising a carbamate group, and (B) a component comprising a plurality of groups that are reactive with the carbamate functional groups on component (A), and (C) at least one effect pigment, the curable coating composition when cured having a substantially improved effect pigment orientation. Preferably, the composition further comprises particular rheology control agents.Type: GrantFiled: May 12, 2000Date of Patent: July 16, 2002Assignee: BASF CorporationInventors: John W. Rehfuss, Marvin L. Green, Bertrum Miller
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Publication number: 20020068800Abstract: The present invention relates to polyurethanes containing secondary amide groups in the backbones of the polyurethanes, wherein the secondary amide groups (calculated as NH—CO—, MW 43) are present in an amount of 1 to 14% by weight, based on the weight of the polyurethanes, and correspond to the formulaType: ApplicationFiled: December 5, 2000Publication date: June 6, 2002Inventors: Charles A. Gambino, Karen M. Henderson, Patricia B. Jacobs, Sze-Ming Lee, Robert A. Sylvester
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Patent number: 6391969Abstract: The invention provides a powder slurry composition comprising a first solid particulate component (a) dispersed in a crosslinking component (b) having at least one crosslinking resin which is liquid at 20° C. First component (a) is in solid particulate form having an average particle size of from 3 to 30 microns. Component (a) has a compound (i) having a Tg>40° C. and at least one carbamate or urea functional group, or a group convertible to a carbamate or urea group appended thereto. Crosslinking component (b) has at least one crosslinking resin (i) which is liquid at 20° C. Most preferably, crosslinking component (b) will further include a self-crosslinking aminoplast resin (ii) having at least two aminoplast groups and at least two groups which are nonreactive with solid particulate first component (a) but which are reactive with said aminoplast groups. The powder slurry composition of the invention has a VOC of less than 1.0 lbs.Type: GrantFiled: August 7, 2000Date of Patent: May 21, 2002Assignee: BASF CorporationInventors: Paul J. Harris, Walter H. Ohrbom, John W. Rehfuss
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Patent number: 6362359Abstract: The present invention relates to compounds containing modified hydrazide groups and corresponding to formula I 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′ and R′ represents a group which is inert to isocyanate groups under the conditions used to form the compound of formula I, R″ represents a divalent, linear or branched aliphatic group containing 2 to 10 carbon atoms, provided that there are at least two carbons between the oxygen atoms wherein the aliphatic group may optionally be substituted by heteroatoms to form ether or ester groups, and n is 2 to 6.Type: GrantFiled: December 1, 2000Date of Patent: March 26, 2002Assignee: Bayer CorporationInventors: Sze-Ming Lee, Karen M. Henderson, Patricia B. Jacobs, Robert A. Sylvester, Douglas A. Wicks
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Patent number: 6306947Abstract: An aqueous emulsion which comprises as a resin component a self-emulsifiable copolymer in which at least one ethylenically unsaturated monomer and at least one urethane prepolymer having at least one mercapto group and at least one hydrophilic, polar group are bonded by radical polymerization or in which at least one ethylenically unsaturated monomer, at least one organic polyisocyanate, at least one compound having at least one mercapto group and at least one active hydrogen-containing group and at least one compound having at least one hydrophilic, polar group and at least one active hydrogen-containing group are bonded by urethanization reaction and radical polymerization. The aqueous emulsion is better in storage stability than conventional ones.Type: GrantFiled: May 27, 1999Date of Patent: October 23, 2001Assignees: Nippon Polyurethane Industry Co., Ltd., Asia Industry Co., Ltd.Inventors: Takeshi Morishima, Shunsuke Murakami, Toshiaki Sasahara, Shin Konishi, Kazuya Sugimoto
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Patent number: 6254937Abstract: Soft feel lacquers comprising water dilutable binders A which possess functional groups, selected from hydroxyl, amino and carboxyl groups, and of curing agents B which have functional groups capable of reacting with the functional groups of the components A, and forming chemical bonds as cross-linking sites, wherein at least one of the components A and B contains a sufficient quantity of aromatic constituent units to ensure that the mass fraction of the aromatic constituent units in relation to the solid matter in the combination of binder and curing agent is not less than 3%.Type: GrantFiled: August 2, 1999Date of Patent: July 3, 2001Assignee: Vianova Resins AGInventors: Markus A. Schafheutle, Birgit Anner, Anton Arzt, Julius Burkl, Gerlinde Petritsch, Joerg Wango
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Patent number: 6207768Abstract: The combination of powder coatings usable in a coating method comprising mixing two or more powder coatings of which each color is different, wherein each of the powder coatings fuses with each other and is heat-cured, to thereby give a coating film having a homogeneous hue. A powder coating composition comprising two or more powder coatings of which each color is different, wherein each of the powder coatings fuses with each other and is heat-cured, to thereby give a coating film having a homogeneous hue. A coating method comprising the steps of (a) applying to a substrate two or more powder coatings, of which each color is different; (b) heating to fuse with each other each of the two or more powder coatings applied in step (a); and (c) curing the resulting fused product in step (b), to give a coating film having a homogeneous hue.Type: GrantFiled: November 25, 1997Date of Patent: March 27, 2001Assignee: Kao CorporationInventors: Yukiya Sato, Hisakazu Tajima, Katsutoshi Aoki, Takehiko Tohjo, Yasunori Inagaki, Masayuki Maruta, Shingo Tanaka
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Patent number: 6203913Abstract: The present invention provides coating compositions including: (a) about 75 to about 99.9 weight percent of a crosslinkable film-forming system including one or more crosslinkable film-forming resins and one or more crosslinking materials which is capable of reacting with the film-forming resin to form a crosslinked film; and (b) one or more substantially saturated, predominantly hydrocarbon adhesion promoting agents having an average of more than one pendant or terminal polar group per molecule which are capable of reacting with the crosslinking material, the adhesion promoting agent(s) being present in an amount ranging from about 0.1 to about 25 weight percent on a basis of total resin solids of the coating composition. The coating compositions are useful for directly coating surfaces of thermoplastic and thermosetting plastic substrates, such as TPO and RIM, without the aid of flame or corona pretreatment, or the use of an adhesion promoter.Type: GrantFiled: December 16, 1998Date of Patent: March 20, 2001Assignee: PPG Industries Ohio, Inc.Inventors: Constantine A. Kondos, Edward E. McEntire, Masayuki Nakajima, Richard M. Nugent, Jr.
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Patent number: 6165618Abstract: Curable coating compositions are described comprising(a) a polymer resin comprising carbamate functional groups,(b) a curing agent having groups that are reactive with said functional groups on (a), and(c) a compound having a molecular weight of from 75 to 2000 comprising at least one group of the formula: ##STR1## wherein X is O or NH, R is H or alkyl of 1 to 4 carbon atoms, and either (a), (b), or both (a) and (b) comprise groups that are reactive with said group on (c).Type: GrantFiled: November 3, 1994Date of Patent: December 26, 2000Assignee: BASF CorporationInventors: Walter H. Ohrbom, Gregory G. Menovcik, John W. Rehfuss, Robert J. Taylor
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Patent number: 6150465Abstract: The invention provides a powder slurry composition comprising a first solid particulate component (a) dispersed in a crosslinking component (b) having at least one crosslinking resin which is liquid at 20.degree. C. First component (a) is in solid particulate form having an average particle size of from 3 to 30 microns. Component (a) has a compound (i) having a T.sub.g >40.degree. C. and at least one carbamate or urea functional group, or a group convertible to a carbamate or urea group appended thereto. Crosslinking component (b) has at least one crosslinking resin (i) which is liquid at 20.degree. C. Most preferably, crosslinking component (b) will further include a self-crosslinking aminoplast resin (ii) having at least two aminoplast groups and at least two groups which are nonreactive with solid particulate first component (a) but which are reactive with said aminoplast groups. The powder slurry composition of the invention has a VOC of less than 1.0 lbs.Type: GrantFiled: October 1, 1998Date of Patent: November 21, 2000Assignee: BASF CorporationInventors: Paul J. Harris, Walter H. Ohrbom, John W. Rehfuss
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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: 6117931Abstract: There is described a curable coating composition having at least one effect pigment which, upon cure, exhibits substantially improved orientation of the effect pigment and a corresponding improvement in appearance. The composition comprises:(A) a carbamate-functional component having a hydrophobicity equivalent to or greater than that of a carbamate-functional compound (A') which is the reaction product of:(1) a compound comprising a plurality of hydroxyl groups, at least one of which is the result of a ring-opening reaction between an epoxy group and an organic acid group, and(2) cyanic acid or a compound comprising a carbamate group, and(B) a component comprising a plurality of groups that are reactive with the carbamate functional groups on component (A), and(C) at least one effect pigment,the curable coating composition when cured having a substantially improved effect pigment orientation. Preferably, the composition further comprises particular rheology control agents.Type: GrantFiled: December 1, 1997Date of Patent: September 12, 2000Assignee: BASF CorporationInventors: John W. Rehfuss, Marvin L. Green, Bertrum Miller
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Patent number: 6103826Abstract: Clearcoat compositions using a phenolic ester compound are described. The phenolic ester compound is selected from the group consisting of a phenolic ester alcohol, a phenolic urethane, a phenolic blocked isocyanate, and mixtures thereof.Type: GrantFiled: January 29, 1997Date of Patent: August 15, 2000Assignee: Eastern Michigan UniversityInventors: Frank N. Jones, Vijay Swarup, Albert I. Yezrielev, Ramachandran P. Subrayan
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Patent number: 6071564Abstract: Use for protective coatings of compositions comprising (% by wt.): A) from 10 to 60% of a A1) (per)fluoropolyethereal prepolymer having a polyisocyanic functionality obtainable by reacting a bifunctional having hydroxylic functionality, said fluoropolyethers having --CH.sub.2 OH terminations directly linked to a perfluoroalkylic group CF.sub.2 or CF.sub.2 CFX (X.dbd.Cl, F) or CF(CF.sub.3), with a polyisocyanate containing isocyanurate rings, preferably obtained by cyclotrimerization of HDI, IPDI or other monomeric diisocyanates, by utilizing an excess of isocyanate groups comprised between 10 and 80% by moles; the above fluoropolyether prepolymer can be partially or totally replaced by A2) non fluorinated polyisocyanates containing isocyanurate rings and/or hydrogenated polyisocyanate prepolymers;B) from 0.1 to 50% of a (per)fluoropolyether having bifunctional hydroxylic functionality of the type --CF.sub.2 CH.sub.2 OH, --CF.sub.2 CFXCH.sub.2 OH (X.dbd.Cl, F) or --CF(CF.sub.3)CH.sub.Type: GrantFiled: June 10, 1997Date of Patent: June 6, 2000Assignee: Ausimont S.p.A.Inventors: Roberta Marchetti, Massimo Malavasi
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Polymeric vehicles which include a phenol blocked isocyanate having aliphatic hydroxyl fucntionality
Patent number: 6051674Abstract: The present invention is directed to a polymeric vehicle, the formulated coating composition and a coating binder made from the polymeric vehicle and a method for making the polymeric vehicle where the polymeric vehicle includes a phenol blocked isocyanate having reactive aliphatic hydroxyl groups. The phenol blocked isocyanate may be made from a phenolic ester alcohol having at least one aliphatic hydroxyl group and one phenolic hydroxyl group.Type: GrantFiled: August 26, 1996Date of Patent: April 18, 2000Assignee: Exxon Chemical Patents, Inc.Inventors: Albert I. Yezrielev, Frank N. Jones, Ramachandran P. Subrayan, Vijay Swarup -
Patent number: 6037440Abstract: Polyurethanes with reactive 2-cyanoacetamido moieties are cross-linked with selected electrophiles to give polyurethanes with increased network density.Type: GrantFiled: February 11, 1998Date of Patent: March 14, 2000Assignee: Eastman Kodak CompanyInventors: John C. Wilson, William B. Vreeland
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Patent number: 5977268Abstract: Injection-moldable thermoplastic polyurethane compositions with reduced cycle time contain a cycle time reducing amount of a low molecular weight, high softening point, poly(hydroxyl group)-containing resin, preferably a phenolic modified terpene resin.Type: GrantFiled: February 18, 1998Date of Patent: November 2, 1999Assignee: BASF CorporationInventor: Roger Jyh-Chiarng Huarng
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Patent number: 5973072Abstract: The present invention is directed to a polymeric vehicle, the formulated coating composition and a coating binder made from the polymeric vehicle and a method for making the polymeric vehicle where the polymeric vehicle includes a phenolic urethane reactive diluent. The phenolic urethane reactive diluent may be made from a phenolic ester alcohol having at least one aliphatic hydroxyl group.Type: GrantFiled: March 21, 1996Date of Patent: October 26, 1999Assignee: Exxon Chemical Patents, Inc.Inventors: Frank N. Jones, Vijay Swarup, Ramachandran P. Subrayan, Suru Zhang
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Patent number: 5965670Abstract: Curable film-forming compositions comprising acrylic polyols, aminoplast and carbamoyl triazines are disclosed. The compositions are useful as clear coats in composite color-plus-clear coatings.Type: GrantFiled: May 4, 1998Date of Patent: October 12, 1999Assignee: PPG Industries Ohio, Inc.Inventors: George W. Mauer, William E. Michael, John W. Burgman, Leigh-Ann Humbert
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Patent number: 5955561Abstract: Novel hydroxy ester, hydroxy amide, and amide functional compounds are provided comprising the reaction product of:(a) an active ester functional material having the structure: ##STR1## wherein R.sup.1 is derived from a polyisocyanate; m is at least 2; R.sup.2 is a lower alkyl or alkoxy group; and R.sup.3 is a lower alkyl group; and(b) ammonia, a diol, or an amino functional material having the structure:R.sup.4 --NH--(R.sup.5).sub.x --(R.sup.6 OR.sup.7).sub.ywherein R.sup.4 is --H or alkanol; R.sup.5 is a polyvalent linking group comprising alkylene, alkylamino, urethane, or amido; x is 0 or 1; R.sup.6 is a divalent linking group comprising alkylene, silane, or siloxane; R.sup.7 is H or a lower alkyl; and y is 1 to 3. The compound is useful in curable film-forming compositions.Type: GrantFiled: December 19, 1997Date of Patent: September 21, 1999Assignee: PPG Industries Ohio, Inc.Inventor: Padmanabhan Sundararaman
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Patent number: 5948838Abstract: The present invention relates to a polycarbonate resin composition comprising 100 parts by weight of a polycarbonate resin; 0.01 to 5 parts by weight of a compound containing oxymethylene unit, a compound containing oxymethylene unit having substituent or a cyclic ether compound having substituent.Type: GrantFiled: February 25, 1997Date of Patent: September 7, 1999Assignee: Mitsubishi Engineering-Plastics Corp.Inventors: Shinya Miya, Satoshi Kanayama
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Patent number: 5945499Abstract: Disclosed is a curable coating composition that includes a compound having carbamate functionality of the structure ##STR1## wherein R is H or alkyl, a compound having hydroxyl functionality, a polyisocyanate crosslinking agent, and an aminoplast crosslinking agent. The effective equivalents of the aminoplast crosslinking agent is equal to or less than the equivalents of carbamate functionality and the effective equivalents of polyisocyanate crosslinker is equal to or less than the equivalents of hydroxyl functionality. The carbamate-functional resin and the aminoplast crosslinking agent provide rheology control during the early part of the bake to cure an applied coating of the coating composition.Type: GrantFiled: November 12, 1997Date of Patent: August 31, 1999Assignee: BASF CorporationInventors: Walter H. Ohrbom, Paul J. Harris
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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
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Patent number: 5852136Abstract: There is described a curable coating composition comprising:(A) a carbamate-functional component that is the reaction product of:(1) a compound comprising a plurality of hydroxyl groups, at least one of which is the result of a ring-opening reaction between an epoxy group and an organic acid group, and(2) cyanic acid or a compound comprising a carbamate group, and(B) a component comprising a plurality of groups that are reactive with the carbamate functional groups on component (A).Type: GrantFiled: July 1, 1996Date of Patent: December 22, 1998Assignee: BASF CorporationInventor: Marvin L. Green
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Patent number: 5846474Abstract: Injection-moldable thermoplastic polyurethane compositions with reduced cycle time contain a cycle time reducing amount of a low molecular weight, high softening point, poly(hydroxyl group)-containing resin, preferably a phenolic modified terpene resin.Type: GrantFiled: March 26, 1997Date of Patent: December 8, 1998Assignee: BASF CorporationInventor: Roger Jyh-Chiarng Huarng
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Patent number: 5840806Abstract: Disclosed is a curable resin composition which can be applied for various uses such as top-coating compositions for cars, coating compositions for exterior walls of constructions, heat-resistant coating compositions, adhesives, ink compositions, compositions to be infiltrated into fibers and paper, and surface-treating compositions. The composition comprises (A) a resin obtained by condensation of a polymer having both a hydrolyzable silyl group and a particular functional group except such a hydrolyzable silyl group, and a particular polysiloxane, and (B) a compound capable of reacting with the functional group existing in the resin (A).Type: GrantFiled: January 7, 1997Date of Patent: November 24, 1998Assignee: Dainippon Ink and Chemicals, Inc.Inventors: Shigeru Komazaki, Shinichi Kudo, Masataka Ooka
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Patent number: 5827931Abstract: Polyurethane polymers having pendant carbamate groups are disclosed. The polymers are prepared by:(a) reacting a mixture comprising a polyol having at least one pendant carbamate group and a polyisocyanate to form a polyurethane having pendant carbamate groups, and(b) optionally, capping the polyurethane from (b) with an active hydrogen-containing capping agent.Type: GrantFiled: October 15, 1997Date of Patent: October 27, 1998Assignee: BASF CorporationInventors: Gregory L. Menovcik, Walter H. Ohrbom
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Patent number: 5804672Abstract: A mixture of an adduct of an epoxy resin and a novolak with an acrylate polymer, a modified bisphenol A or a polyol in conjunction with a polyisocyanate or a polyol of an OH-terminated polyurethane or polyester gives a heat-sealing adhesive combining high heat resistance and good hydrolysis stability with relatively high bond strengths. Accordingly, the composition is suitable above all as a base material and cover film for printed circuits.Type: GrantFiled: February 29, 1996Date of Patent: September 8, 1998Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Gerd Bolte, Gunter Henke, Ulrike Bruninghaus
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Patent number: 5789494Abstract: Methods and compositions for encapsulated polymeric gels swollen with nonaqueous reactive materials are provided. The methods include gel synthesis, swelling of a gel precursor with a first nonaqueous reactive material, and encapsulation of the swollen gel with a second nonaqueous reactive material. Gels precursors may be synthesized from crosslinking polymers, or alternatively, may be formed by crosslinking and polymerizing a monomer starting material. An accelerator may be utilized to facilitate swelling of the gel precursor with the first nonaqueous reactive material. Foams and composites may also be swollen with the first nonaqueous reactive material. The swollen gel is then contacted with a second nonaqueous reactive material such that an encapsulation layer is formed thereby. The encapsulated gels may be stored for subsequent use.Type: GrantFiled: June 7, 1995Date of Patent: August 4, 1998Assignee: Medlogic Global CorporationInventors: Barry Joseph Hand, E. C. Lupton, Jr., Lev Bromberg, Xiaohong Yu
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Patent number: 5789493Abstract: The invention relates to a process for preparing a composition contains a polymer and a crosslinking agent which comprises mixing a polymer that is solid at room temperature with a crosslinking agent, the polymer and the crosslinker having complementary reactive groups, at a temperature at which the viscosity of the polymer (measured according to Emila) is less than 5000 dpas, in a means for achieving a homogeneous composition in such a short time that less than 20% of the reactive groups of one of either the polymer or crosslinking agent has reacted, and subsequently cooling and comminuting the composition.The mixing is preferably effected in a static mixer at a temperature higher than 140.degree. C.Type: GrantFiled: August 1, 1997Date of Patent: August 4, 1998Assignee: DSM N.V.Inventors: Josephus M. Van Aaken, Guillaume F. M. Hoedemakers, Johannes S. Van Der Bas, Adrianus J. Van De Werff
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Patent number: 5773113Abstract: Adhesive compositions for electronic applications contain a hydroxyl-bearing resin, a thermoplastic urethane and a curing agent.Type: GrantFiled: November 21, 1996Date of Patent: June 30, 1998Assignee: Brady Precision Tape Co.Inventor: Sohail Akhter
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Patent number: 5747633Abstract: A resin composition comprising a saturated polyester resin consisting chiefly of a hydroxyalkanoate unit, a heat-moldable hydroxyl group-containing resin having a vinyl alcohol unit, and an alkaline earth metal carbonate, a molded article composed of this resin composition and, particularly, a container and a multi-layer plastic container having an outer layer formed of this resin composition and an inner layer of a resin consisting chiefly of an ethylene-vinyl alcohol copolymer. The resin composition and the molded articles thereof exhibit not only excellent mechanical properties but also excellent bio-disintegrating property.Type: GrantFiled: June 24, 1996Date of Patent: May 5, 1998Assignee: Toyo Seikan Kaisha, Ltd.Inventors: Takurou Ito, Yoshitsugu Maruhashi
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Patent number: 5723552Abstract: Polyurethane polymers having pendant carbamate groups are disclosed. The polymers are prepared by:(a) reacting a mixture comprising a polyol having at least one pendant carbamate group and a polyisocyanate to form a polyurethane having pendant carbamate groups, and(b) optionally, capping the polyurethane from (b) with an active hydrogen-containing capping agent.Type: GrantFiled: October 24, 1995Date of Patent: March 3, 1998Assignee: BASF CorporationInventors: Gregory L. Menovcik, Walter H. Ohrbom
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Patent number: 5719237Abstract: Coatings are described derived from a curable coating composition comprising:(a) a non-polymeric organic compound having a molecular weight of from 75 to 2000 comprising a plurality of carbamate active hydrogens, and(b) a second component comprising a compound having a plurality of functional groups that are reactive with said carbamate active hydrogens.Type: GrantFiled: November 3, 1994Date of Patent: February 17, 1998Assignee: BASF CorporationInventors: John W. Rehfuss, Walter H. Ohrbom, Donald L. St. Aubin, Robert J. Taylor
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Patent number: 5708074Abstract: A process for the preparation of water-dilutable polyvinylbutyral dispersions by (1) reacting an aliphatic acid having from one to three isocyanate-reactive groups and from one to three acid groups, or a mixture of such acids, with one or more polyfunctional isocyanates whose average functionality is at least two, where the quantity of the isocyanate component is chosen such that the ratio of the number of isocyanate groups to the number of isocyanate-reactive groups of the acid component is between 2.2:1 and 1.7:1; (2) then reacting from 25 to 75% of the remaining isocyanate groups with at least one monofunctional compound selected from monoalcohols and monoamines; and (3) reacting this NCO-functional emulsifier resin further with polyvinylbutyral and, if desired, with an appropriate plasticizer resin using a suitable auxiliary solvent. The polyvinylbutyral dispersions prepared in this way can be used as binders and binder components for coatings with good adhesion.Type: GrantFiled: May 1, 1996Date of Patent: January 13, 1998Assignee: Hoechst AktiengesellschaftInventors: Gerhard Merten, Ralph Schaefer, Markus Schafheutle, Martin Gerlitz
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Patent number: 5693709Abstract: Polyoxymethylene with improved acid stability, process for production and use thereof. By adding 0.01 to 5 parts of an alkali metal salt of a polybasic acid, for example oxalic acid, citric acid and/or 0.01 to 5 parts of a polyalkylene glycol, for example polyethylene glycol and/or 0.1 to 100 parts of a thermoplastic polyurethane, each related to 100 parts of a polyoxymethylene, this polymer is stabilized against attack by acids, wherein in particular the combination of an alkali metal salt, in particular an oxalate, with small proportions of a thermoplastic polyurethane is advantageous. The proportion of thermoplastic polyurethane may be reduced when the thermoplastic polyurethane has a Shore A hardness of 70 to 96. The weight loss of a stabilized POM under the action of acid may be less than 3% of that of an unstabilized POM. The products are useful when exposed to acidic agents such as irrigation systems, dishwashers, sanitary installations.Type: GrantFiled: August 26, 1996Date of Patent: December 2, 1997Assignee: Degussa AktiengesellschaftInventors: Edwin Nun, Stephanie Schauhoff, Detlef Arnoldi
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Patent number: 5663246Abstract: Cyclic acetal derivative of a resole includes the reaction product of an ortho resole compound with a carbonyl compound or a carbonyl compound derivative. The cyclic acetal derivatives of phenolic resole compounds exhibit enhanced storage stability and can be readily activated at elevated temperatures to prepare phenolic based adhesives and coatings.Type: GrantFiled: October 26, 1994Date of Patent: September 2, 1997Assignee: Lord CorporationInventors: Esther Spaltenstein, Ernest B. Troughton, Jr.
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Patent number: 5663244Abstract: A flexible, aminoplast-curable film-forming composition and a process for preparing multi-layered coated articles coated with a pigmented or colored base coat and a transparent or clear topcoat are disclosed. A pigmented or colored base coat is first applied to a substrate followed by the application of a transparent topcoat to the base coat. The transparent topcoat composition is a flexible, curable film-forming composition comprising (1) a polyether polymer containing a plurality of terminal or pendant carbamate groups of the structure: ##STR1## and (2) an aminoplast crosslinking agent. The topcoat composition provides a flexible composite coating with improved acid etch resistance, making the composite coating particularly useful as a topcoat for plastic automotive parts.Type: GrantFiled: May 23, 1995Date of Patent: September 2, 1997Assignee: PPG Industries, Inc.Inventors: Steven V. Barancyk, Christopher A. Verardi, William A. Humphrey
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Patent number: 5639828Abstract: A curable coating composition is described comprising two components that are reactive with one another upon curing to form urethane linkages. The urethane-forming components are an active hydrogen groups-containing component and a polyisocyanate, or a carbamate groups-containing component and a carbamate group-reactive component. The composition further comprises a third component that includes one or more epoxide groups. Coatings prepared with this coating composition can be cured and coated with additional coating(s), providing good intercoat adhesion to the subsequent coating.Type: GrantFiled: April 25, 1996Date of Patent: June 17, 1997Assignee: BASF CorporationInventors: Rodney L. Briggs, John W. Rehfuss, Walter H Ohrbom, Gregory G. Menovcik