公开(公告)号：US11851573B2

公开(公告)日：2023-12-26

申请号：US17290214

申请日：2019-11-01

申请人： PPG Industries Ohio, Inc.

发明人： Yaqi Wo ,  David R. Fenn ,  Matthew S. Luchansky ,  Shanti Swarup ,  Diane L. Wargo ,  Xiangling Xu

IPC分类号： C09D133/08 ,  C08F222/10 ,  C08F220/18 ,  B05D7/00 ,  C08F220/06 ,  C08F220/20 ,  C08K5/3492 ,  C08K5/42 ,  C08L67/00 ,  B05D7/14

CPC分类号： C09D133/08 ,  B05D7/542 ,  C08F220/06 ,  C08F220/1808 ,  C08F220/1811 ,  C08F220/20 ,  C08F222/102 ,  C08K5/34922 ,  C08K5/42 ,  C08L67/00 ,  B05D7/14

摘要： A coating composition includes: (a) a carboxylic acid functional polyol polymer; (b) a melamine-formaldehyde crosslinker reactive with the carboxylic acid functional polyol polymer; (c) an acid catalyst; and (d) a non-aqueous liquid medium. The carboxylic acid functional polyol polymer has an acid value within a range of from 30 to 120 mg KOH/g and a hydroxyl value within a range of from 60 to 150 mg KOH/g. The melamine-formaldehyde crosslinker includes imino and methylol groups that together make up 35 mole % or less of the total functionality of the melamine-formaldehyde crosslinker, and butyl groups and isobutyl groups that together make up 5 mole % or greater of the total functionality of the melamine-formaldehyde crosslinker. The coating composition cures at a temperature of 100° C. or less.

公开(公告)号：US20210403745A1

公开(公告)日：2021-12-30

申请号：US17290214

申请日：2019-11-01

申请人： PPG Industries Ohio, Inc.

发明人： Yaqi Wo ,  David R. Fenn ,  Matthew S. Luchansky ,  Shanti Swarup ,  Diane L. Wargo ,  Xiangling Xu

IPC分类号： C09D133/08 ,  C08F220/06 ,  C08F220/18 ,  C08F220/20 ,  C08F222/10 ,  C08K5/3492 ,  C08K5/42 ,  C08L67/00 ,  B05D7/00

摘要： A coating composition includes: (a) a carboxylic acid functional polyol polymer; (b) a melamine-formaldehyde crosslinker reactive with the carboxylic acid functional polyol polymer; (c) an acid catalyst; and (d) a non-aqueous liquid medium. The carboxylic acid functional polyol polymer has an acid value within a range of from 30 to 120 mg KOH/g and a hydroxyl value within a range of from 60 to 150 mg KOH/g. The melamine-formaldehyde crosslinker includes imino and methylol groups that together make up 35 mole % or less of the total functionality of the melamine-formaldehyde crosslinker, and butyl groups and isobutyl groups that together make up 5 mole % or greater of the total functionality of the melamine-formaldehyde crosslinker. The coating composition cures at a temperature of 100° C. or less.