| 摘要 |
1,184,821. Coated polypropylene UNION CARBIDE CORP. 17 Feb., 1967 [18 Feb., 1966; 20 Jan., 1967], No. 7646/67. Heading B2K. [Also in Divisions B5 and C3] Polypropylene discs, which have been impregnated with linseed oil prior to being oxidised, are coated with aluminium-filled phenolic varnish, phenolic/tung oil varnish or alkyd enamel and air dried. In another example, an adhesive comprising the diglycidyl ether of bisphenol-A and a tri-amine or polyamide hardener is applied to the discs and cured. |
