| 摘要 |
<p>1313024 Electro-phoretic deposition of polymers BAYER AG 19 April 1971 [4 April 1970] 25638/71 Heading C7B [Also in Division C3] In examples, phosphatized steel sheet is coated by making it the anode in an electrodeposition bath containing an aqueous lacquer comprising ethylene glycol monobutyl ether, carbon black, aluminium silicate pigment, and a polymeric binder obtained by reacting polybutadiene oil with soya oil and then reacting the product with maleic anhydride followed by hydrolysis and neutralisation with triethylamine. In example 2, the polymer is also further reacted with styrene prior to hydrolysis and neutralisation.</p> |
