公开(公告)号：EP1453864A1

公开(公告)日：2004-09-08

申请号：EP02768767.2

申请日：2002-09-03

Applicant: BASF CORPORATION

Inventor： OHRBOM, Walter ,  LAUGAL, James ,  WEISE, Robert

IPC: C08F2/06 ,  C08G63/00 ,  C08G59/00 ,  C08G71/00 ,  C09D157/00

CPC classification number: C08F2/44 ,  C08F2/06

Abstract: The invention relates to an economical method of making a polymer having reduced VOCs and coating compositions containing such polymers. In one embodiment, the method of invention requires providing a reactant mixture (a), providing a solvent mixture (b) comprising a reactive component (c) which is substantially free of any heteroatoms and is not a crystalline solid at room temperature and comprises (i) from 12 to 72 carbon atoms, and (ii) at least two functional groups, and subjecting the reactant mixture (a) in the solvent mixture (b) to polymerization conditions sufficient to polymerize reactant mixture (a) to provide a mixture (d) of a polymer (a') in solvent mixture (b), wherein reactive component (c) under the polymerization conditions is substantially nonreactive: (1) with the components of reactive mixture (a), (2) in the polymerization of reactant mixture (a) and (3) with the polymer (a'). Coating compositions of the invention comprising polymers made by the disclosed method provide low VOCs without any reduction in application or performance properties.

公开(公告)号：EP1453864B1

公开(公告)日：2007-01-03

申请号：EP02768767.2

申请日：2002-09-03

Applicant: BASF CORPORATION

Inventor： OHRBOM, Walter ,  LAUGAL, James ,  WEISE, Robert

IPC: C08F2/06 ,  C08G63/00 ,  C08G59/00 ,  C08G71/00 ,  C09D157/00

CPC classification number: C08F2/44 ,  C08F2/06

Abstract: The invention relates to an economical method of making a polymer having reduced VOCs and coating compositions containing such polymers. In one embodiment, the method of invention requires providing a reactant mixture (a), providing a solvent mixture (b) comprising a reactive component (c) which is substantially free of any heteroatoms and is not a crystalline solid at room temperature and comprises (i) from 12 to 72 carbon atoms, and (ii) at least two functional groups, and subjecting the reactant mixture (a) in the solvent mixture (b) to polymerization conditions sufficient to polymerize reactant mixture (a) to provide a mixture (d) of a polymer (a') in solvent mixture (b), wherein reactive component (c) under the polymerization conditions is substantially nonreactive: (1) with the components of reactive mixture (a), (2) in the polymerization of reactant mixture (a) and (3) with the polymer (a'). Coating compositions of the invention comprising polymers made by the disclosed method provide low VOCs without any reduction in application or performance properties.

公开(公告)号：EP1549716A1

公开(公告)日：2005-07-06

申请号：EP03808039.6

申请日：2003-07-25

Applicant: BASF Corporation

Inventor： OHRBOM, Walter ,  LAW, David ,  WEISE, Robert ,  LAUGAL, James

IPC: C09D161/20 ,  C09D5/03 ,  C08G12/00

CPC classification number: C09D5/037 ,  C08G2150/20 ,  C09D161/20 ,  Y10S525/934 ,  Y10T428/31551 ,  C08L2666/02

Abstract: A coating composition contains solid particulates of a mixture of an aminoplast crosslinking agent, a solid polymer having functionality reactive with the aminoplast crosslinking agent, and a crystalline, carbamate-functional additive. The crystalline, carbamate-functional additive has a melting point of at least about 30°C and is up to about 15% by weight of the powder coating composition.

公开(公告)号：EP1379599A2

公开(公告)日：2004-01-14

申请号：EP02706312.2

申请日：2002-02-19

Applicant: BASF CORPORATION

Inventor： MENOVCIK, Gregory ,  STAUFFER, Michele ,  WEST, Mark ,  BALATAN, Sergio ,  LAUGAL, James

IPC: C09D201/02 ,  C09D7/00 ,  C09D5/02

CPC classification number: C09D167/00 ,  C08G18/3831 ,  C08G18/6229 ,  C08G18/807 ,  C09D133/062 ,  C09D175/04 ,  C09D201/025 ,  C08L2666/14 ,  C08L2666/16

Abstract: The coating composition of the invention includes a polymer, especially an acrylic polymer, having hydroxyl and/or primary carbamate functionality; water-miscible organic solvent; low hydrogen bonding oxygenated solvent; and water that is emulsified in the organic phase. The coating composition of the invention may be a clearcoat coating composition, preferably an automotive clearcoat coating composition. The invention further provides an article, such as an automotive vehicle, having a surface coated with a coating derived from the coating composition of the invention, particularly a composite coating having a basecoat layer and clearcoat layer, and a method of producing such coating on a substrate, particularly as a basecoat/clearcoat composite coating, with the coating composition of the invention preferably being at least the clearcoat of the composite coating. The coating composition of the invention provides especially low volatile organic content, with significant reductions of 25 % or more from comparable previous coating compositions.