| 摘要 |
1,256,890. Coatings. IMPERIAL CHEMICAL INDUSTRIES Ltd. 27 June, 1969 [15 July, 1968], No. 33573/68. Heading B2E. [Also in Division C3] Kraft paper substrates are extrusion coated with a composition containing 0.01% to 0.1% polytetrafluoroethylene and 99.99% to 99.9% polyethylene. |
