| 摘要 |
1474013 Polymer compositions containing glass beads DAI NIPPON TORYO CO Ltd 15 Oct 1975 [3 March 1975] 42266/75 Heading C3P A light transmissible composition comprises 100 parts by weight of a resin and 100 to 500 parts by weight of glass beads having a refractive index N D of 1À5 to 2À2 and an average diameter of 20 to 150 Á. The resin can be polyvinyl chloride, ethylene-vinyl acetate copolymers, or ethylene-vinyl acetate-vinyl chloride copolymer and may be plasticized. |
