| 摘要 |
1,232,610. Coating. PENNSYLVANIA INDUSTRIAL CHEMICAL CORP. 27 Nov., 1968 [1 Dec., 1967], No. 56395/68. Heading B2E. [Also in Divisions C3 and C5] In example VI paper is coated with a mixture of paraffin wax, ethylene/vinyl acetate copolymer (which may be replaced by other polymers) and a polymer of tert, butyl styrene. In example VII regenerated cellulose is coated with a solution in toluol of a polymer of tert butyl styrene and natural rubber. |
