| 摘要 |
1,247,973. Photographic process for producing metal patterns. RCA CORPORATION. Sept. 10, 1969 [Sept. 11, 1968], No. 44614/69. Heading G2C. Metal patterns are produced by imagewise exposing a material comprising a heat-resistant support coated with a layer of a photo-resist and a transparent metal resinate, developing to remove the more soluble areas of the resist and resinate and then heating the material to remove the resist and to convert the metal resinate to a metallic pattern. Specified supports are glass and ceramics while the resist specified is an o-naphthoquinone diazide and the resinate specified is a gold sulphoresinate. After the resist is removed, the material is preferably further heated to strengthen the bond between the metal image and support. |
