发明授权
- 专利标题: Glossy improved appearance auto-deposition coating, and methods of applying same
- 专利标题(中): 光泽改进的外观自动沉积涂层及其应用方法
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申请号: US13803618申请日: 2013-03-14
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公开(公告)号: US09228109B2公开(公告)日: 2016-01-05
- 发明人: Xueting Qiu , Manesh Nadupparambil Sekharan , Omar Abu-Shanab , William E. Fristad , Girdhari Kumar
- 申请人: HENKEL AG & CO. KGAA
- 申请人地址: DE Duesseldorf
- 专利权人: Henkel AG & Co. KGaA
- 当前专利权人: Henkel AG & Co. KGaA
- 当前专利权人地址: DE Duesseldorf
- 代理商 Mary K. Cameron
- 主分类号: B32B15/08
- IPC分类号: B32B15/08 ; C08L63/00 ; C09D163/00 ; C09D163/10
摘要:
The invention provides an improved appearance, glossy, autodepositing coating composition that maintains its desirable properties such as moisture barrier properties, although it is still able to deliver a glossy finish. No additional coatings are necessary over the instant coating to achieve a gloss. The glossy composition is accomplished by narrowing the molecular weight distribution and the molecular weight of an autodepositing epoxy dispersion coating by adding a chain transfer agent. The chain transfer agent is a thiol-containing compound made from an epoxy resin mixed with at least one ethylenically unsaturated monomer polymerized through a polymerization process, a curing agent, and a starter composition of peroxide, FeF3, and hydrofluoric acid. By eliminating the starter composition, a bath concentrate suitable for selling is manufactured.
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