Patent ID: 6163106
Filing Date: 2000-12-19
Classification: C03C

Abstract:
A color cathode ray tube having a panel glass and a funnel glass sealed with a composition comprising a low melting glass containing PbOB.sub.2 O.sub.3, B.sub.2 O.sub.3 and ZnO and having a weight ratio of PbO/B.sub.2 O.sub.3 .ltoreq.9 and a weight ratio of ZnO/B.sub.2 O.sub.3 >1, wherein the sealed portion is such that the weight reduction after being immersed in water at 90.degree. C. for 20 hours, is at most 1 mg/cm.sup.2, and the weight reduction after being immersed in a 10% nitric acid solution at 40.degree. C. for 20 minutes, is from 80 to 700 mg/cm.sup.2.