| 摘要 |
1,220,450. Forms of wood. DAINICHISEIKA COLOR & CHEMICALS MFG. CO. Ltd. 26 Oct., 1967 [9 Nov., 1966], No. 48838/67. Heading B5L. [Also in Divisions B2, B6, C3, C4-C5, and Dl] A veneer board is dipped in a solution of a formaldehyde-urea condensation resin, the solution having dissolved therein a chromogenbonded acrylamide-methyl acrylate copolymer. Also, a solution of the condensation resin is applied over wooden boards. After air-drying the veneer and boards are laminated by pressing at 130‹ C. and 1500 lb./inch<SP>2</SP> to produce a coloured laminated board (see Example 63).
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