| 摘要 |
F-4752-L IMPROVED OPAQUE FILM COMPOSITIONS An opaque, biaxially-oriented polymeric film contains a matrix of (i) a thermoplastic polymeric material in which there are dispersed (ii) void initiating solid particles, about which there are located opacifying voids, and a minor amount of (iii) a light-absorbing pigment particles having lamellar morphology. |
