ETHYLENE COPOLYMER AND MANUFACTURE

Japanese Patent JPS58111815

A

1. Use of ethylene copolymers which contain, polymerised therein : from 95.9 to 99% by weight of ethylene as well as, in addition, a) from 4 to 0.3% by weight of vinyl acetate and/or vinyl propionate and b) from 3.5 to 0.1% by weight of saturated aliphatic aldehydes with from 2 to 5 carbon atoms in the alkyl portion, saturated aliphatic ketones with 1 or 2 carbon atoms in the alkyl portions, alkenes with from 3 to 6 carbon atoms and/or cyclohexene, having a density of from 0.920 to 0.930 g/cm**3 , a melt index MFI 190/2.16 of from 0.1 to 0.5 g/10 min, a melt index numerical ratio (MFI 190/5):(MFI190/2.16) of from 3.2 to 3.9, a shear viscosity at 200 degrees C at a shearing stress of 4.10**5 Pa in the range of from 1500 to 2000 Pa.s and at a shearing stress of 6.10**4 in the range of from 80 to 120 Pa.s, a Vicat temperature of from 104 to 106 degrees C, a tensile impact toughness higher than 1800 mJ/mm**2 and a stress corrosion cracking greater than 1500 h, for the production of sacks for heavy goods having a bulk density higher than 0.3 kg/dm**3 and filling quantities of at least about 10 kg or as shrink films.

KAARUUHAINTSU IMUHAUZEN
YURUGEN HITSUPENSHIYUCHIIRUUIM
RIYUUDEIGERU BERUNTSU
FURANKU HERUMAN
FURIIDORITSUHI SHIETSUFUERU
YURUGEN CHINKU
HAINTSU BETSUKEMAIERU
FUORUKERU RIIPE
UIRUHERUMU TSUORURERU

JP22283282A

July 04, 1983

December 17, 1982

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IMHAUSEN CHEMIE GMBH
RUHRCHEMIE AG

C08F2/34; C08F32/00; C08F210/00; C08F210/02; C08F218/00; C08F2/00; C08F218/02; (IPC1-7): C08F2/34; C08F210/02; C08F210/16; C08G61/12

JP40027547A

Asahina Sota

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