초록 ▼

The present invention relates to coating compositions including a particular class of oligomeric sterically hindered polyamines as replacements for traditional blocked and unblocked polyamine crosslinkers. The use of these oligomeric sterically hindered polyamine crosslinkers resultss in a desirable

The present invention relates to coating compositions including a particular class of oligomeric sterically hindered polyamines as replacements for traditional blocked and unblocked polyamine crosslinkers. The use of these oligomeric sterically hindered polyamine crosslinkers resultss in a desirable pot life/cure speed relationship not generally available with traditional unblocked polyamine crosslinkers, as well as a lower VOC and often better appearance characteristics than generally available with the traditional blocked varieties.

대표청구항 ▼

[ We claim:] [1.] A method of lowering the volatile organic content (VOC) of a coating composition comprising using an oligomeric sterically hindered polyamine as a polyamine crosslinker in a coating composition based upon an amine crosslinkable resin and a polyamine crosslinker wherein the oligomer

[ We claim:] [1.] A method of lowering the volatile organic content (VOC) of a coating composition comprising using an oligomeric sterically hindered polyamine as a polyamine crosslinker in a coating composition based upon an amine crosslinkable resin and a polyamine crosslinker wherein the oligomeric sterically hindered polyamine comprises an oligomeric backbone having pendant therefrom at least two amino groups, wherein(A) the amino groups pendant from the backbone are sterically hindered, and(B) the oligomeric sterically hindered polyamine has a molecular weight (Mn) of about 200-10,000.