| abstract |
A LAMINATED WRAPPING FILM INCLUDES A LAYER (A) OF A COEFFICIENT ETHYLENE COPOLYMER OF DISTRIBUTION VARIATION (CX) OF COMPOSITION REPRESENTED BY THE EQUATION BELOW 0.40 OR LESS AND THAT HAS A 50 MOL ETHYLENE CONTENT OR MORE AND AT LEAST A LAYER OF A DIFFERENT CLASS, WHERE (SIGMA) IS A STANDARD DISTRIBUTION DEVIATION (1 / 1000C) OF THE COMPOSITION, AND SCBAVE IS A HALF OF THE NUMBER OF SHORT CHAINS RAMIFIED BY 1000C (1 / 1000C) . THE PRODUCTION OF THE COPOLYMER IS DESCRIBED, AND ETHYLENE OR PROPYLENE COPOLYMERS AND A (ALPHA) PYLENE AND ETHYLENE, WHICH ARE SUITABLE AS THE DIFFERENT LAYER CLASS. THE FILM IS SAFE AND HYGIENIC, HAS REDUCED ODOR AND EXCELLENT TRANSPARENCY, MECHANICAL RESISTANCE, DUCTILITY, AND PROPERTIES OF INSULATION OF HEAT AT LOW TEMPERATURE AND IS ADEQUATE FOR AUTOMATIC WRAPPING, PARTICULARLY WRAPPED WITH ENVELOPE. |