发明申请
- 专利标题: COATED SUBSTRATES PREPARED WITH WATERBORNE SEALER AND PRIMER COMPOSITIONS
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申请号: US14943133申请日: 2015-11-17
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公开(公告)号: US20170136493A1公开(公告)日: 2017-05-18
- 发明人: PAUL H. LAMERS , CASEY MARIE SAMPLE
- 申请人: PPG INDUSTRIES OHIO, INC.
- 主分类号: B05D7/00
- IPC分类号: B05D7/00 ; B05D1/28 ; B05D1/18 ; C25D7/00 ; B05D1/02
摘要:
The present invention provides multilayer coated substrates, prepared using primer and/or sealer compositions comprising waterborne curable film-forming compositions, in turn comprising: a) an aqueous dispersion of a pigment and i) polymeric urethane-shell particles having a care-shell morphology and having hydroxyl functional groups, wherein the core is prepared from a monomer mixture comprising hydrophobic, ethylenically unsaturated monomers and the shell comprises a polyurethane or polyurethane-urea polymer; or ii) polymeric acrylic-shell particles having a core-shell morphology and having hydroxyl functional groups, wherein the core is prepared from a monomer mixture comprising hydrophobic, ethylenically unsaturated monomers and the shell is prepared from a monomer mixture comprising hydrophilic, ethylenically unsaturated monomers; b) a polyisocyanate crosslinking agent; and optionally c) a hydroxyl functional, water dispersible acrylic polymer.
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