公开(公告)号：EP1332168A4

公开(公告)日：2004-12-29

申请号：EP01977372

申请日：2001-10-03

申请人： ANDERSON DEV CO

发明人： LU SZU-PING ,  PRUCNAL PAUL J

IPC分类号： C09D5/03 ,  C08F6/00 ,  C08F6/10 ,  C08K5/3435 ,  C08K5/3492 ,  C09D133/00 ,  C08J3/00 ,  C08J3/12 ,  C08K5/10 ,  C08K5/34 ,  C08K5/3432

CPC分类号： C08K5/34926 ,  C08F6/003 ,  C08K5/3435 ,  C08L33/06

摘要： A process for separating a solvent and low molecular weight material from an acrylic resin by adding a hindered amine light stabilizer having at least one aminoether group to a mixture of the organic solvent, low molecular weight material and the acrylic resin and subjecting the resulting mixture to an elevated temperature for a time sufficient to remove the solvent and low molecular weight material from the acrylic resin by devolatilization. A composition can be provided which is capable of being formed into a powder coating composition which essentially contains an acrylic resin, a hindered amine light stabilizer having at least one aminoether group or residue thereof and less than 4% by weight of low molecular weight material having a molecular weight less than 600.

公开(公告)号：EP1234005A4

公开(公告)日：2004-12-08

申请号：EP00959294

申请日：2000-08-22

申请人： ANDERSON DEV CO

发明人： LU SZU-PING ,  PRUCNAL PAUL J ,  NORTON HIRAM A

IPC分类号： C08F283/04 ,  C08L77/00 ,  C08L77/12 ,  C09D151/08

CPC分类号： C08F283/04 ,  C08F220/32

摘要： A graft copolymer comprising a polyamide to which is grafted a glycidyl group-containing acrylate copolymer. The graft copolymer can be prepared by dispersing in an organic solvent a polyamide and a material which will react with the polyamide to form the graft copolymer of the polyamide and the acrylate copolymer and reacting the polyamide and the material so as to form said graft copolymer. The graft copolymer can exhibit improved toughness and reduced friability and can be used to form molded articles and in coating compositions, especially powder coating compositions. The coatings can exhibit transparency, reduced brittleness and increased chip resistance. The powder coatings can further exhibit high gloss and smoothness due to superior flow characteristics thereby enabling thinner coatings to be used that provide acceptable appearance.