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Machine translation
1. (WO1982000470) ETHYLENE-a-OLEFIN COPOLYMER COMPOSITION
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1982/000470    International Application No.:    PCT/JP1981/000173
Publication Date: 18.02.1982 International Filing Date: 07.08.1981
IPC:
C08L 23/08 (2006.01)
Applicants: MITSUI PETROCHEMICAL INDUSTRIES, LTD..
SHIBATA, Yuzo; .
NAGANUMA, Seikoh;
Inventors: SHIBATA, Yuzo; .
NAGANUMA, Seikoh;
Priority Data:
Title (EN) ETHYLENE-a-OLEFIN COPOLYMER COMPOSITION
(FR) COMPOSITION COPOLYMERE D'ETHYLENE-(ALPHA)-OLEFINE
Abstract: front page image
(EN)A composition which has excellent transparency and impact resistance and improved low-temperature heat-sealing properties, improved strength and flexing resistance at heat-sealed portions thereof, and which comprises a mixture of at least two ethylene-rich ethylene-(Alpha)-olefin copolymers (A) and (B): (A) 95 to 45wt% of a random copolymer between ethylene and a C5 to C10(Alpha)-olefin, which has a melt index of 0.1 to 20 g/ 10 min, a density of 0.910 to 0.940 g/cm3, a crystallinity of 40 to 70% (measured by X-ray analysis), a m. p. of 115 to 130 C, and an ethylene content of 94 to 99.5 mol%; and (B) 5 to 60wt% of a random copolymer between ethylene and a C3 to C10 (Alpha)-olefin, which has a melt index of 0.1 to 50 g/10 min, a density of 0.870 to 0.900 g/cm3, a crystallinity of 5 to 40% (measured by X-ray analysis), a m. p. of 40 to 100 C, and an ethylene content of 85 to 95 mol%.
(FR)Une composition ayant d'excellentes proprietes de transparence, de resistance aux chocs, et de scellement thermique a basse temperature, ainsi qu'une meilleure resistance et une resistance accrue a la flexion au niveau de ses parties scellees a la chaleur, laquelle composition se compose d'un melange d'au moins deux copolymeres d'ethylene-(Alpha)-olefine riches en ethylene (A) et (B): (A) 95 a 45% en poids d'un copolymere d'ethylene et d'o-olefine de C5 a C10, qui possede un indice de fusion de 0,1 a 20g/10min, une densite de 0,910 a 0,940g/cm3, une cristallinite de 40 a 70% (mesuree par analyse aux rayons X), un point de fusion de 1 15 a 130 C, et une concentration en ethylene de 94 a 99,5 moles%; et (B) 5 a 60% en poids d'un copolymere d'ethylene et d'(Alpha)-olefine de C3 a C10, qui possede un indice de fusion de 0,1 a 50g/10min, une densite de 0,870 a 0,900g/cm3, une cristallinite de 5 a 40% (mesuree par analyse aux rayons X), un point de fusion de 40 a 100 C, et une concentration en ethylene de 85 a 95 moles%.
Designated States:
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)