John W Rehfuss Deceased10208 Willingham Rd, Huntersville, NC 28078

6391969, May 21, 2002

Aug 7, 2000

09/633513

Paul J. Harris - West Bloomfield MI
Walter H. Ohrbom - Hartland Township MI
John W. Rehfuss - West Bloomfield MI

BASF Corporation - Southfield MI

C08K 507

525163, 525428, 525443, 525456, 525474, 525523

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 20Â 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 40Â 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 20Â 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. /gal and provides performance and application improvements over the prior art.

6420472, Jul 16, 2002

May 12, 2000

09/570479

John W. Rehfuss - West Bloomfield MI
Marvin L. Green - Brighton MI
Bertrum Miller - Roseville MI

BASF Corporation - Southfield MI

C08K 308

524441, 524449, 524439, 525456, 525440, 525441, 525509, 525481, 525488, 525510, 525514, 523457, 523466

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 (Aâ) 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.

6423788, Jul 23, 2002

Oct 6, 1995

08/686929

Brian D. Bammel - Highland MI
John D. McGee - Highland MI
Walter H. Ohrbom - Commerce Township MI
Todd A. Seaver - Auburn MI
Paul J. Harris - West Bloomfield MI
John W. Rehfuss - West Bloomfield MI

BASF Corporation - Southfield MI

C09D17300

525410, 4284231, 525411, 525414, 525415, 525450, 525509, 525519

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.

6498266, Dec 24, 2002

Aug 15, 1996

08/698525

Brian D. Bammel - Highland MI
John D. McGee - Highland MI
Walter H. Ohrbom - Hartland Township MI
Todd A. Seaver - Fort Wayne IN
Gregory G. Menovcik - Farmington Hills MI
Paul J. Harris - West Bloomfield MI
John W. Rehfuss - West Bloomfield MI

BASF Corporation - Southfield MI

C08G 6364

560 24

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.

6541577, Apr 1, 2003

Dec 6, 2000

09/731328

Walter H Ohrbom - Hartland Township MI
John W. Rehfuss - Huntersville NC

BASF Corporation - Southfield MI

C08F 830

525498, 525157, 525192, 525218, 5253299, 5253305, 525504, 525509, 525512, 526361

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. groups reactive with an active hydrogen group, and (b) a monomeric compound of the formula: wherein at least one of Y and Z is an active hydrogen containing group and the other is a primary carbamate group, and R is of the formula: â(L) âRâ wherein L is a linking group of one or more carbons containing heteratoms selected from the group consisting of O, N, and mixtures thereof, Râ is an alkyl group free of heteratoms and selected from the group consisting of branched alkyl groups having from 5 to 30 carbons, straight chain alkyl groups of more than 2 carbons, and mixtures thereof, and n is a number from 0 to 1.

6710138, Mar 23, 2004

Jan 15, 2003

10/342897

Walter H Ohrbom - Hartland Township MI
John W. Rehfuss - Huntersville NC

BASF Corporation - Southfield MA

C08F 830

525498, 5253299, 5253305

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 groups reactive with an active hydrogen group, and (b) a monomeric compound of the formula: wherein at least one of Y and Z is an active hydrogen containing group and the other is a primary carbamate group, and R is of the formula: â(L)nâRâ wherein L is a linking group of one or more carbons containing heteratoms selected from the group consisting of O, N, and mixtures thereof, Râ is an alkyl group free of heteratoms and selected from the group consisting of branched alkyl groups having from 5 to 30 carbons, straight chain alkyl groups of more than 2 carbons, and mixtures thereof, and n is a number from 0 to 1.

7030263, Apr 18, 2006

Oct 25, 2002

10/280619

Brian D. Bammel - Rochester Hills MI, US
John D. McGee - Troy MI, US
Walter H. Ohrbom - Hartland Township MI, US
Todd A. Seaver - Fort Wayne IN, US
Gregory G. Menovcik - Farmington Hills MI, US
Paul J. Harris - West Bloomfield MI, US
John W. Rehfuss - Huntersville NC, US

BASF Corporation - Southfield MI

C08G 63/64

560 24, 4284231, 525410, 525414, 525415, 525450, 525509, 525519

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.

7122605, Oct 17, 2006

Nov 29, 2001

09/998365

Walter H. Ohrbom - Hartland Township MI, US
Patricia A. Herrel - Hartland Township MI, US
John W. Rehfuss - Huntersville NC, US

BASF Corporation - Southfield MI

C08F 283/01
C08F 265/04
C08F 8/32

525498, 525380, 525484, 525278, 5253272, 5253299, 5253327

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.