| 摘要 |
1523482 Paper made from polyolefin fibres CHAMPION PAPER CO Ltd 8 Aug 1975 [9 Aug 1974] 33098/75 Heading D2B [Also in Division B5] Paper is made from a synthetic wood pulp comprising polyolefin fibrids treated with a water-soluble, hydrophilic, surface-active agent after their manufacture to preserve their structure. The surface active agent may be a diol, triol, polyvinyl alcohol, rosin size, alkyl aryl sulfonate, saccharide or polysaccharide eg. starch (including cationic or anionic starch). |
