C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 23/14 (2006.01) B01J 8/00 (2006.01) B01J 8/24 (2006.01) B01J 19/18 (2006.01) C08F 10/06 (2006.01) D01F 6/46 (2006.01) C08F 210/16 (2006.01)
Patent
CA 2279217
The present invention relates to polypropylene alloys which are especially suited for soft fiber and fabric applications. An embodiment of these alloys comprises an ethylene-propylene random copolymer having an ethylene content of from 1.0 to 5.0 % by weight, in an amount of from 40 to 90 % by weight of the alloy; and an ethylene-propylene bipolymer having an ethylene content of from 10 to 30 % by weight, in an amount of from 10 to 60 % by weight of the alloy. The present invention further relates to a hybrid process for making these alloys.
La présente invention concerne des mélanges de polypropylène spécialement adaptés à la fabrication de tissu et de fibre souple. Selon un mode de réalisation, ces mélanges comprennent un copolymère statistique d'éthylène-propylène présentant une teneur en éthylène de 1,0 % à 5,0 % en poids de ce copolymère, ce dernier représentant 40 % à 90 % en poids du mélange; et un bipolymère d'éthylène-propylène présentant une teneur en éthylène de 10 % à 30 % en poids de ce bipolymère, ce dernier représentant 10 % à 60 % du mélange. La présente invention concerne, en outre, un procédé hybride d'obtention de ces mélanges.
Cheng Chia Yung
Chien William Moa-Tseng
Georgellis George Byron
Borden Ladner Gervais Llp
Exxon Chemical Patents Inc.
Exxonmobil Chemical Patents Inc.
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