Patents by Inventor John W. Rehfuss
John W. Rehfuss has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 7122605Abstract: The invention relates to a method of making an acrylic graft polymer, especially a urethanized acrylic graft polymer. The method of the invention requires an ethylenically unsaturated monomer mixture (a) comprising a monomer (ai) of a particular structure having at least one cyclic carbonate group and the polymerization of the monomer mixture (a) under free radical polymerization conditions to make an acrylic backbone polymer (b) comprising one or more cyclic carbonate functional groups (bi). At least one grafting moiety (c) is then provided, said grafting moiety (c) comprising at least one amine group (ci) selected from primary amines, secondary amines, and mixtures of both primary and secondary amines. The grafting moiety (c) is then grafted onto acrylic backbone polymer (b) via reaction between the at least one amine group (ci) and cyclic carbonate functional groups (bi) so as to make an urethanized acrylic graft polymer.Type: GrantFiled: November 29, 2001Date of Patent: October 17, 2006Assignee: BASF CorporationInventors: Walter H. Ohrbom, Patricia A. Herrel, John W. Rehfuss
-
Patent number: 7030263Abstract: A method of preparing a carbamate or urea-functional compound is described comprising the step of reacting a lactone or hydroxy carboxylic acid with a compound (A) comprising a carbamate or urea group or a group that can be converted to a carbamate or urea group, and an active hydrogen group capable of reacting with the hydroxy carboxylic acid or in a ring-opening reaction with a lactone. The compound thus prepared is useful in curable compositions.Type: GrantFiled: October 25, 2002Date of Patent: April 18, 2006Assignee: BASF CorporationInventors: Brian D. Bammel, John D. McGee, Walter H. Ohrbom, Todd A. Seaver, Gregory G. Menovcik, Paul J. Harris, John W. Rehfuss
-
Patent number: 6710138Abstract: The instant invention provides carbamate functional polymers and/or oligomers and coating compositions containing such which have improved levels of nonvolatile solids yet demonstrate good sprayability and etch resistance.Type: GrantFiled: January 15, 2003Date of Patent: March 23, 2004Assignee: BASF CorporationInventors: Walter H Ohrbom, John W. Rehfuss
-
Publication number: 20030144429Abstract: The instant invention provides carbamate functional polymers and/or oligomers and coating compositions containing such which have improved levels of nonvolatile solids yet demonstrate good sprayability and etch resistance.Type: ApplicationFiled: January 15, 2003Publication date: July 31, 2003Inventors: Walter H. Ohrbom, John W. Rehfuss
-
Publication number: 20030100687Abstract: The invention relates to a method of making an acrylic graft polymer, especially a urethanized acrylic graft polymer. The method of the invention requires an ethylenically unsaturated monomer mixture (a) comprising a monomer (ai) of a particular structure having at least one cyclic carbonate group and the polymerization of the monomer mixture (a) under free radical polymerization conditions to make an acrylic backbone polymer (b) comprising one or more cyclic carbonate functional groups (bi). At least one grafting moiety (c) is then provided, said grafting moiety (c) comprising at least one amine group (ci) selected from primary amines, secondary amines, and mixtures of both primary and secondary amines. The grafting moiety (c) is then grafted onto acrylic backbone polymer (b) via reaction between the at least one amine group (ci) and cyclic carbonate functional groups (bi) so as to make an urethanized acrylic graft polymer.Type: ApplicationFiled: November 29, 2001Publication date: May 29, 2003Inventors: Walter H. Ohrbom, Patricia A. Herrel, John W. Rehfuss
-
Patent number: 6541577Abstract: The instant invention provides carbamate functional polymers and/or oligomers and coating compositions containing such which have improved levels of nonvolatile solids yet demonstrate good sprayability and etch resistance. The carbamate functional polymers and/or oligomers of the invention comprise the polymerization reaction product of (a) a polymer or oligomer comprising a plurality of functional.Type: GrantFiled: December 6, 2000Date of Patent: April 1, 2003Assignee: BASF CorporationInventors: Walter H Ohrbom, John W. Rehfuss
-
Publication number: 20030050498Abstract: A method of preparing a carbamate or urea-functional compound is described comprising the step of reacting a lactone or hydroxy carboxylic acid with a compound (A) comprising a carbamate or urea group or a group that can be converted to a carbamate or urea group, and an active hydrogen group capable of reacting with the hydroxy carboxylic acid or in a ring-opening reaction with a lactone. The compound thus prepared is useful in curable compositions.Type: ApplicationFiled: October 25, 2002Publication date: March 13, 2003Inventors: Brian D. Bammel, John D. Mcgee, Walter H. Ohrbom, Todd A. Seaver, Gregory G. Menovcik, Paul J. Harris, John W. Rehfuss
-
Patent number: 6498266Abstract: A method of preparing a carbamate or urea-functional compound is described comprising the step of reacting a lactone or hydroxy carboxylic acid with a compound (A) comprising a carbamate or urea group or a group that can be converted to a carbamate or urea group, and an active hydrogen group capable of reacting with the hydroxy carboxylic acid or in a ring-opening reaction with a lactone. The compound thus prepared is useful in curable compositions.Type: GrantFiled: August 15, 1996Date of Patent: December 24, 2002Assignee: BASF CorporationInventors: Brian D. Bammel, John D. McGee, Walter H. Ohrbom, Todd A. Seaver, Gregory G. Menovcik, Paul J. Harris, John W. Rehfuss
-
Publication number: 20020147279Abstract: The instant invention provides carbamate functional polymers and/or oligomers and coating compositions containing such which have improved levels of nonvolatile solids yet demonstrate good sprayability and etch resistance.Type: ApplicationFiled: December 6, 2000Publication date: October 10, 2002Inventors: Walter H. Ohrbom, John W. Rehfuss
-
Patent number: 6423788Abstract: A curable coating composition is described comprising (A) a carbamate- or urea-functional compound that is the reaction product of a mixture comprising (1) a compound comprising a carbamate or urea group or a group that can be converted to carbamate or urea, and a hydroxyl functional group that is the reaction product of (a) a compound comprising a carbamate or urea group or a group that can be converted to a carbamate or urea group, and an active hydrogen group that is reactive with a lactone ring or a hydroxy carboxylic acid, and (b) a lactone or a hydroxy carboxylic acid, and (2) a compound that is reactive with hydroxyl groups on a plurality of molecules of compound (A)(1), but that is not reactive with the carbamate or urea groups on compound (A)(1), (B) a compound comprising a plurality of groups that are reactive with carbamate or urea.Type: GrantFiled: October 6, 1995Date of Patent: July 23, 2002Assignee: BASF CorporationInventors: Brian D. Bammel, John D. McGee, Walter H. Ohrbom, Todd A. Seaver, Paul J. Harris, John W. Rehfuss
-
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
-
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
-
Publication number: 20020022702Abstract: A coating composition comprising a first component comprising a compound having appended thereto at least one carbamate group, urea group, or group convertible to a carbamate or urea group, and a second component which is a urea crosslinker selected from alkoxy substituted methyl urea crosslinkers where the alkoxy substituent is between 1 and 12 carbons, N,N-dimethyl urea, N,N,N-trimethylurea, and ethyl ethylene urea crosslinkers and mixtures thereof, where the second component is reactive with the carbamate or urea groups on the first component.Type: ApplicationFiled: July 3, 2001Publication date: February 21, 2002Inventor: John W. Rehfuss
-
Patent number: 6258898Abstract: A crosslinking agent comprising one or more carbamate groups or groups convertible to carbamate and two or more polyfunctional amino moieties having the formula wherein L is selected from the group consisting of alkyl or aryl, cycloalkyl and alkylaryl having a carbon chain length between 1 and 6 carbon atoms and N is a polyfunctional amino moiety. L may also have additional bridging groups such as esters, ethers, ureas, or urethanes groups. Also included is a method of making the crosslinker, a coating composition containing the crosslinker and a method for coating a substrate with the composition.Type: GrantFiled: December 23, 1996Date of Patent: July 10, 2001Assignee: BASF CorporationInventors: John W. Rehfuss, Walter H. Ohrbom, Donald L. St. Aubin
-
Patent number: 6180240Abstract: A durability enhancing agent comprising the reaction product of an acrylic oligomer or acrylic polymer and an ultraviolet light absorbing compound, a hindered amine light stabilizer or mixture thereof, said durability enhancing agent further comprising more than one carbamate functional group, or group convertible to a carbamate group, and optionally, including other reactive functionality capable of undergoing a crosslinking reaction. Also included is a curable coating composition comprising the durability enhancing agent, a method for obtaining a coated substrate and the coated article obtained thereby.Type: GrantFiled: March 18, 1999Date of Patent: January 30, 2001Assignee: BASF CorporationInventors: Donald L. St. Aubin, John E. Boisseau, John W. Rehfuss, Patricia K. Oberg
-
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
-
Patent number: 6166148Abstract: A durability enhancing agent which is an ultraviolet light absorbing compound or hindered amine light stabilizer covalently bonded to a monomeric, oligomeric or polymeric component. The durability enhancing agent includes more than one carbamate functional group, group convertible to a carbamate group, or group that is crosslinked via a carbamate group. The durability enhancing agent may also have other reactive functionality thereon. Also included is a coating composition including the durability enhancing agent.Type: GrantFiled: December 18, 1996Date of Patent: December 26, 2000Assignee: BASF CorporationInventors: Walter H. Ohrbom, Donald L. St. Aubin, John E. Boisseau, Patricia K. Oberg, John W. Rehfuss
-
Patent number: 6162546Abstract: The present invention relates to a modified crosslinkable resin and a composite coating composition or system employing the resin. More particularly, the resin comprises an ethylenically unsaturated monomer or copolymer and para-hydroxybenzoic acid or substituted para-hydroxybenzoic acid, the reaction product thereof subsequently being reacted with a crosslinking agent gives rise to a composition including an ether linkage with a carbon-carbon site ortho to the phenolic hydroxy group.Type: GrantFiled: July 31, 1997Date of Patent: December 19, 2000Assignee: BASF CorporationInventors: Paul J. Harris, John W. Rehfuss, Gregory G. Menovcik, Robert J. Taylor, Jr., Donald L. St. Aubin
-
Patent number: 6160058Abstract: The present invention provides a curable coating composition that includes at least three components. The coating composition includes a component (a) that includes one or both of a compound (a)(1) having at least one carbamate group or terminal urea group according to the invention and having at least two linking groups that are urethane or urea or a compound (a)(2) having at least two groups selected from carbamate groups, terminal urea groups, or combinations of the two and at least four urethane or urea linking groups. The second component (b) of the coating composition includes an acrylic polymer comprising active hydrogen-containing functional groups reactive with the third component(c). Component (c) of the coating composition is a curing agent that is reactive with the first two components. Preparation of coated articles using the compositions of the invention is also disclosed.Type: GrantFiled: November 2, 1998Date of Patent: December 12, 2000Assignee: BASF CorporationInventors: Walter H. Ohrbom, Gregory G. Menovcik, Donald L. St. Aubin, John E. Boisseau, John W. Rehfuss
-
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