METAL SURFACE TREATING AGENT AND SURFACE TREATED METALLIC MATERIAL TREATED WITH THE SAME
Document Type and Number:
Japanese Patent JP3803819
PROBLEM TO BE SOLVED: To obtain a metal surface treating agent capable of improving the press molding workability of a metallic material and depositing a film excellent in moisture resistance and film peelability.
SOLUTION: This metal surface treating agent contains (A) a copolymer of (a) styrene with (b) a vinyl compound having carboxyl group copolymerizable with the styrene as essential monomers and (B) a lubricant. In the agent, the ratio of the component (a) to the component (b) in the (A) copolymer satisfies (a)/(b)=1/9 to 9/1 by mass, the ratio of (a)+(b) in the (A) copolymer is 30 to 100 mass %, and also, the ratio of (B) to (A)+(B) is 2 to 30 mass %. As the (B) lubricant, paraffin wax, microcrystalline wax, polyethylene wax, polypropylene wax, or the like, are peferable, and, as the (A) copolymer, the one having a glass transition temperature of ≥75°C is preferable. The metal surface treating agent is applied and dried to deposit a film on the surface of a metallic material. The coating weight of the film after the drying is preferably controlled to 1 to 5 g/m2.
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C09K3/00; C23C22/00; C09D5/00; C09D5/20; C09D125/06; C09D125/08; C09D125/14; C09D133/02; C09D135/00; C09D135/06; C09D191/06; C10M101/02; C10M107/04; C10M107/06; C10M145/14; C10M145/16; C10M149/06; C10M149/08; C10M157/00; C10M173/02; C08L23/06; C08L91/06; C10N20/00; C10N30/00; C10N40/24; C10N50/02; (IPC1-7): C23C22/00; C09D5/00; C09D5/20; C09D125/08; C09D191/06; C09K3/00; C10M101/02; C10M107/04; C10M107/06; C10M145/14; C10M145/16; C10M149/06; C10M149/08; //C10N20:00; C10N30:00; C10N40:24; C10N50:02