| 摘要 |
<p>1,168,490. Embossed packaging film. UNION CARBIDE CORP. 13 Jan., 1967 [14 Jan., 1966], No. 2029/67. Heading B5B. [Also in Division B6] A transparent self-supporting thermoplastic polymer film having a thickness in the range of from 0À25 mil. to 1À5 mil. of the kind strongly clinging to itself and to other smooth surfaces is provided with embossed raised portions each having an area within the range of from 0À0194- 0-97 square centimetres, the ratio of raised area to depressed area portions being within the range of from 0À3-2À5 to 1. Polyethylene is the specified polymer.</p> |
