C - Chemistry – Metallurgy – 23 – G
Patent
C - Chemistry, Metallurgy
23
G
18/1168, 149/25
C23G 5/024 (2006.01) B05D 3/10 (2006.01) B05D 3/12 (2006.01) B29C 69/00 (2006.01) C08J 7/00 (2006.01) C11D 1/66 (2006.01) C11D 3/43 (2006.01)
Patent
CA 2024067
Method of painting pretreatment for plastic formings and cleaner for painting pretreatment Abstract of the disclosure It is required to undergo painting pretreatment of a plastic formings by a method which is replacable of a vapor-washing method using a chlorinated hydrocarbon in order to prevent from the environmental destruction by the chlorinated hydrocarbon. A plastic formings is brought in contact and treated with a treating solution prepared by suspending a hydrocarbons solvent in water. A plastic formings is brought in contact and treated with a treating solution containing an alkali component and then, said treating solution attaching on the surface of said formings is rinsed out and, in at least a final stage of the rinsing-out, the surface of said formings is brought in contact with a surface-conditioning solution which contains a nonionic surface-active agent having the HLB value of 10 to 17 in a concentration range of 0.001 to 100 g/l.
Nobe Kazuo
Sobata Tamotsu
Ushio Akira
Bereskin & Parr
Nippon Paint Co. Ltd.
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