Paul J Lessek

6403709, Jun 11, 2002

Dec 22, 2000

09/747475

Swaminathan Ramesh - Canton MI
Paul Lessek - Elk Point SD
Wolfgang Bremser - Münster, DE

BASF Corporation - Southfield MI

C08L 5300

525 95, 525 98, 525192, 525193, 525194, 4273722, 4273741, 4273855

The present invention is directed to a curable, water-based coating composition utilized in waterborne coating systems. The coating composition is the reaction product of a water-based copolymer prepared by free-radical polymerization, and a cross-linking agent. The copolymer is the reaction product of a first block and a second block. The first block is the reaction product of a first ethylenically unsaturated monomer, acrylic acid, and a second ethylenically unsaturated monomer, methyl methacrylate, as wells as the reaction product of a vinylaromatic hydrocarbon monomer, diphenylethylene. The second block is the reaction product of a plurality of ethylenically unsaturated monomers, styrene, 2-ethylhexyl methacrylate, cyclohexyl methacrylate, and carbonate-modified glycidyl methacrylate including a carbonate functional group. The cross-linking agent, triaminononane, includes amino functional groups that react with the carbonate functional group to establish a coating composition having of carbonateâamine cross-linking. Methods for preparing the coating composition and a cured film are also disclosed.

6699943, Mar 2, 2004

Dec 22, 2000

09/747473

Swaminathan Ramesh - Canton MI
Paul Lessek - Elk Point SD
Wolfgang Bremser - Münster, DE

BASF Corporation - Southfield MI

C08L 5302

5253299, 5253305, 525191, 525193, 525194, 525 95, 525 98, 524598, 526301

The present invention is directed to a curable, water-based coating composition utilized in waterborne coating systems. The coating composition is the reaction product of a water-based copolymer prepared by free-radical polymerization, and a cross-linking agent. The copolymer is the reaction product of a first block and a second block. The first block is the reaction product of a first ethylenically unsaturated monomer, acrylic acid, and a second ethylenically unsaturated monomer, methyl methacrylate, as well as the reaction product of a vinylaromatic hydrocarbon monomer, diphenylethylene. The second block is the reaction product of a plurality of ethylenically unsaturated monomers, styrene, 2-ethylhexyl methacrylate, cyclohexyl methacrylate, and carbonate-modified glycidyl methacrylate including a carbonate functional group that is subsequently converted into a carbamate functional group by ammonium hydroxide. The cross-linking agent, preferably a melamine, reacts with the carbamate functional group to establish a coating composition having urethane cross-linking from the carbamateâmelamine reaction.

6812297, Nov 2, 2004

Aug 9, 2002

10/216351

Swaminathan Ramesh - Canton MI
Paul Lessek - Milford MI
Paul J. Harris - West Bloomfield MI

BASF Corporation - Southfield MI

C08L 8304

525474, 525540, 528254, 528 27, 528 28, 560225, 10628711

The present invention provides a crosslinker for organic coatings having an amino resin core with substituents including more than one olefin functional group, a silicon-containing group, and at least one alkoxyalkyl or alkylol group. Coating compositions containing the crosslinker can be cured with radiation, especially ultraviolet radiation. The crosslinker can be included in a coating composition with one or more curable resins, applied onto a substrate and cured to form the cured coating of the invention.

6916877, Jul 12, 2005

Aug 14, 2001

09/930615

Swaminathan Ramesh - Canton MI, US
Paul J. Lessek - Elk Point SD, US
Wolfgang Bremser - Munster, DE
Paul J. Harris - West Bloomfield MI, US

BASF Corporation - Southfield MI

C08L077/00

524599, 4273722, 4273855, 524606, 524608, 525 88, 525 93, 525 94, 5253299, 5253305, 526301

The present invention is directed to a curable, water-based coating composition utilized in waterborne coating systems such as a waterborne primer system. The coating composition is the reaction product of a water-dispersible cross-linking agent and a water-based copolymer prepared by free-radical polymerization. The copolymer is the reaction product of a first block and a second block. The first block is the reaction product of a plurality of ethylenically unsaturated monomers. One of the ethylenically unsaturated monomers includes a functional group suitable for reaction with the cross-linking agent. The functional group in the first block is preferably a carbonate, carbamate, or hydroxyl functional group. Other monomers in the plurality include acrylic acid and methyl methacrylate. The first block is also the reaction product of a vinylaromatic hydrocarbon monomer such as diphenylethylene.

7267845, Sep 11, 2007

Dec 22, 2000

09/747716

Swaminathan Ramesh - Canton MI, US
Paul Lessek - Milford MI, US
Paul J. Harris - West Bloomfield MI, US

BASF Corporation - Southfield MI

B05D 3/02
B05D 3/06

427387, 10628711, 525474, 525540, 528254, 528 27, 528 28, 427515, 427508, 427384, 560225

The present invention provides a crosslinker for organic coatings having an amino resin core with substituents including more than one olefin functional group, a silicon-containing group, and at least one alkoxyalkyl or alkylol group. Coating compositions containing the crosslinker can be cured with radiation, especially ultraviolet radiation. The crosslinker can be included in a coating composition with one or more curable resins, applied onto a substrate and cured to form the cured coating of the invention.

55524974, Sep 3, 1996

Dec 29, 1994

8/365648

Robert J. Taylor - Northville MI
John W. Rehfuss - West Bloomfield MI
Joseph Borst - Plymouth MI
Paul Lessek - Milford MI
Donald L. St. Aubin - Commerce Township MI

BASF Corporation - Southfield MI

C08F28304

525456

A method of preparing a carbamate-functional acrylic polymer is described, comprising the steps of: (A) preparing a mixture comprising: (1) one or more acrylic monomers comprising hydroxy-functional groups or groups that can be converted to hydroxy functional groups, (2) optionally, one or more other addition polymerizable monomers, and (3) a carbamate compound, and (B) heating said mixture in the presence of a free radical initiator and an esterification catalyst, thereby forming a carbamate-functional acrylic polymer.