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公开(公告)号:US20180030310A1
公开(公告)日:2018-02-01
申请号:US15220062
申请日:2016-07-26
申请人: BASF Coatings GmbH
IPC分类号: C09D187/00 , C09D133/08
CPC分类号: C09D187/005 , B32B27/40 , C08G18/163 , C08G18/166 , C08G18/242 , C08G18/40 , C08G18/544 , C08G18/765 , C08G18/7671 , C08G18/8022 , C08G18/8077 , C08K5/34922 , C08L61/28 , C09D133/08 , C09D175/04
摘要: Shelf-stable low temperature cure coating compositions that include a hydroxy-functional resin, a crosslinking agent, and a catalyst that does not catalyze the crosslinking reaction between hydroxy-functional resin and the crosslinking agent contained therein, but instead between a hydroxy-functional resin and a crosslinking agent contained in a different low temperature cure coating composition. In addition, low temperature cure composite coatings that include: a basecoat of a low temperature cure coating composition containing a first hydroxy-functional resin, a first crosslinking agent, and a first catalyst; and a topcoat containing a second hydroxy-functional resin, a second crosslinking agent, and a second catalyst, where the first catalyst migrates into the topcoat from the basecoat and catalyzes the reaction between the second hydroxy-functional resin and crosslinking agent, and the second catalyst migrates into the basecoat from the topcoat and catalyzes the reaction between the first hydroxy-functional resin and crosslinking agent.