Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1977-03-21
1978-10-03
Silverman, Stanley S.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
260873, 260897R, 264210R, 264211, 264176R, 264184, 264288, 264289, 428338, 428339, 428327, 428910, 428918, C08L 7700, C08L 2300
Patent
active
041184386
ABSTRACT:
Process for preparing a transparent polypropylene film having good slip and non-blocking properties which comprises admixing polypropylene with a thermoplastic resin in the melt state, the thermoplastic resin having a melting point higher than but no more than 100.degree. C higher than the melting point of the polypropylene and being substantially incompatible with the polypropylene under the mixation condition, to give a polypropylene composition where the thermoplastic resin is dispersed in the form of fine particles of 0.1 to 10 .mu. in average particle size and the amount of the dispersing thermoplastic resin is from 0.01 to 1% by weight of the polypropylene, extruding the resultant composition in the melt state into a film and stretching the film in at least one direction.
REFERENCES:
patent: 3136735 (1964-06-01), Stolt
patent: 3471426 (1969-10-01), Hofton
patent: 3637906 (1972-01-01), Le Paratheon
patent: 3741841 (1973-06-01), Toyoda et al.
patent: 3845180 (1974-10-01), Pinsky
Arakawa Kunihiko
Matsui Takeshi
Kramer Barry
Silverman Stanley S.
Toyo Boseki Kabushiki Kaisha
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