Patent ID: 9676945
Date: 2017-06-13
CPC Classifications: C08K,C09D

Claim:
1. A primer for metal surfaces comprising: organic solvent (A) 50-80 wt %; phenolic resin (B) 2-15 wt %; rubber elastomer (C) 1-10 wt %; silane coupling agent (D) 1-10 wt %; metal oxide powder (E) 5-25 wt %; and inorganic filler (F) 1-10 wt %; wherein the organic solvent (A) is an organic solvent capable of dissolving the phenolic resin (B) and the rubber elastomer (C), and the inorganic filler (F) is different from the metal oxide powder (E); and wherein the metal oxide powder (E) comprises a mixture of zinc oxide and titanium dioxide in a weight ratio of from 10:2 to 20:6.