公开(公告)号：WO1993005090A1

公开(公告)日：1993-03-18

申请号：PCT/US1992010479

申请日：1992-08-20

Applicant: BASF CORPORATION

Inventor： BASF CORPORATION ,  COOK, Vincent, C.

IPC: C08G18/42

CPC classification number: C08G18/792 ,  C08G18/6229 ,  C08G18/7831 ,  C09D175/00 ,  Y10T428/31511 ,  Y10T428/31547 ,  Y10T428/31551

Abstract: A two component composition suitable for coating a substrate comprises at least one crosslinker having a functionality thereon which is reactive with a functionality on at least one film forming polymer present in a separate component of the composition. The crosslinker comprises at least one member selected from the group consisting of: (1) an isocyanurate of isophorone diisocyanate; (2) a derivative of an isocyanurate of isophorone diisocyanate; (3) a biuret of isophorone diisocyanate; and (4) a derivative of a biuret of isophorone diisocyanate. The composition preferably comprises a blend of the crosslinker with a second crosslinker, wherein the second crosslinker is at least one member selected from the group consisting of: (1) an isocyanurate of hexamethylene diisocyanate; (2) a derivative of an isocyanurate of hexamethylene diisocyanate; (3) a biuret of hexamethylene diisocyanate; and (4) a derivative of a biuret of hexamethylene diisocyanate. The invention also pertains to a process for coating a substrate using the composition, as well as to a cured coating formed by the process of the present invention.