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    AN ACRYLIC POLYESTER RESIN AND AN AQUEOUS COATING COMPOSITION CONTAINING THE SAME
    2.
    发明公开
    AN ACRYLIC POLYESTER RESIN AND AN AQUEOUS COATING COMPOSITION CONTAINING THE SAME 审中-公开

    公开(公告)号：EP3800210A1

    公开(公告)日：2021-04-07

    申请号：EP20209145.0

    申请日：2017-12-12

    申请人： PPG Industries Ohio, Inc.

    发明人： POWELL, Adam Bradley ,  RETSCH, William H ,  MILLERO, Edward R ,  DUDIK, John M ,  KURTZ, Christopher P. ,  OLAH, Michael ,  ATMURI, Anand K.

    IPC分类号： C08F283/02 ,  C08F290/06 ,  C08F283/01

    摘要： There is described an aqueous coating composition, the aqueous coating composition comprising an acrylic polyester resin, obtainable by grafting an acrylic polymer and a polyester material, the polyester material being obtainable by polymerizing: (i) a polyacid component, with (ii) a polyol component. At least one of the polyacid component and/or the polyol component comprises a functional monomer operable to impart functionality on to the polyester resin, such that an acrylic polymer may be grafted with the polyester material via the use of said functionality. The coating composition further containing a crosslinking material, wherein the crosslinking material comprises material according to formula (I)

    wherein R 1 is selected from aryl (such as C 4 to C 24 aryl), or aralkyl (such as C 5 to C 25 aralkyl);
    R 2 to R 5 are each independently hydrogen, alkyl (such as C 1 to C 20 alkyl), aryl (such as C 4 to C 24 aryl), aralkyl (such as C 5 to C 25 aralkyl) or -CHR 8 OR 9 ;
    wherein R 8 and R 9 are each independently hydrogen, alkyl (such as C 1 to C 20 alkyl), aryl (such as C 4 to C 24 aryl), aralkyl (such as C 5 to C 25 aralkyl), alkoxyalkyl (such as C 2 to C 40 alkoxyalkyl) or an alkaryl (such as C 5 to C 25 alkaryl);
    wherein at least one of R 2 to R 5 , is -CHR 8 OR 9 , suitably all of R 2 to R 5 , are -CHR 8 OR 9 .