发明授权
US07125606B2 Carboxylic acid modified aminoplast crosslinkers and powder coating compositions containing such crosslinkers
失效
羧酸改性氨基塑料交联剂和含有这种交联剂的粉末涂料组合物
- 专利标题： Carboxylic acid modified aminoplast crosslinkers and powder coating compositions containing such crosslinkers
- 专利标题（中）： 羧酸改性氨基塑料交联剂和含有这种交联剂的粉末涂料组合物
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申请号： US10231634申请日： 2002-08-30
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公开(公告)号： US07125606B2公开(公告)日： 2006-10-24
- 发明人: Shengkui Hu , Anthony M. Chasser , Jackie L. Kulfan
- 申请人： Shengkui Hu , Anthony M. Chasser , Jackie L. Kulfan
- 申请人地址： US OH Cleveland
- 专利权人： PPG Industries Ohio, Inc.
- 当前专利权人： PPG Industries Ohio, Inc.
- 当前专利权人地址： US OH Cleveland
- 代理商 Diane R. Meyers
- 主分类号： B32B27/38
- IPC分类号： B32B27/38 ; B32B27/26 ; C08L63/00 ; C08L61/00 ; C08G73/00
摘要：
A crosslinking agent that is an ungelled reaction product of (a) an aminoplast resin and (b) a carboxylic acid-containing compound wherein the crosslinking agent is essentially free of reactive carboxylic acid groups and has a glass transition temperature of at least 10° C. is disclosed. Methods for preparing crosslinking agents are also disclosed. Further provided is a curable powder coating composition including a polymer having a glass transition temperature of at least 30° C. containing reactive functional groups and the present crosslinking agent; a multilayer composite coating composition and substrates coated therewith are also disclosed.
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