Invention Grant
US08647745B2 Powder coating compositions having a substantially non-zinc containing primer
有权
具有基本上不含锌的底漆的粉末涂料组合物
- Patent Title: Powder coating compositions having a substantially non-zinc containing primer
- Patent Title (中): 具有基本上不含锌的底漆的粉末涂料组合物
-
Application No.: US12864050Application Date: 2009-01-23
-
Publication No.: US08647745B2Publication Date: 2014-02-11
- Inventor: Chad Lucas
- Applicant: Chad Lucas
- Applicant Address: NL Arnhem
- Assignee: Akzo Nobel Coating International B.V.
- Current Assignee: Akzo Nobel Coating International B.V.
- Current Assignee Address: NL Arnhem
- Agent James C. Abruzzo
- Priority: EP08003475 20080221
- International Application: PCT/EP2009/050738 WO 20090123
- International Announcement: WO2009/092773 WO 20090730
- Main IPC: B32B15/092
- IPC: B32B15/092 ; B32B15/09 ; C09D5/03 ; C09D163/00 ; C09D167/00

Abstract:
Corrosion and chip-resistant coatings for high tensile steel components, such as automotive coil springs, are formed from a coating composition comprising a substantially non-zinc containing primer and a topcoat. The primer includes an epoxy resin having an epoxy equivalent weight of about 860 to about 930, a polyhydroxyl functional phenolic curing agent having a hydroxyl equivalent weight of about 200 to about 500, and a filler material. The topcoat includes an epoxy resin having an epoxy equivalent weight of about 520 to about 930, an elastomer-modified epoxy resin having an epoxy equivalent weight of about 1000 to about 1600, a carboxyl functional polyester with an acid number of about 45 to about 75 mg KOH/g, a foaming agent and a reinforcing fiber.
Public/Granted literature
- US20100297422A1 POWDER COATING COMPOSITIONS HAVING A SUBSTANTIALLY NON-ZINC CONTAINING PRIMER Public/Granted day:2010-11-25
Information query