发明申请
- 专利标题: ELECTRODEPOSITABLE COATING COMPOSITIONS AND RELATED METHODS
- 专利标题(中): 电沉积涂料组合物及相关方法
-
申请号: US12346933申请日: 2008-12-31
-
公开(公告)号: US20090111916A1公开(公告)日: 2009-04-30
- 发明人: Venkatachalam Eswarakrishnan , Alan J. Kaylo , Gregory J. McCollum , Ellor James Van Buskirk
- 申请人: Venkatachalam Eswarakrishnan , Alan J. Kaylo , Gregory J. McCollum , Ellor James Van Buskirk
- 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
- 主分类号: C09D5/44
- IPC分类号: C09D5/44
摘要:
Provided is an electrodepositable coating composition of a resinous phase dispersed in an aqueous medium, the resinous phase including (a) an active hydrogen-containing, cationic salt group-containing resin; and (b) an at least partially blocked polyisocyanate curing agent. The composition contains an organotin catalyst which is or is derived from a dialkyltin compound having the structure (I): [R1][R2]—Sn═O (I) where R1 and R2 are the same or different, and each independently represents a monovalent hydrocarbon group wherein the sum of the carbon atoms in R1 and R2 is greater than 8. The catalyst is present in an amount sufficient to effect cure at a temperature at or below 340° F. (171.1° C.). Methods of preparing and using the composition also are provided.
公开/授权文献
- US08168700B2 Electrodepositable coating compositions and related methods 公开/授权日:2012-05-01