Polyolefin molding composition for producing fibers,...

Details Polyolefin molding composition for producing fibers,... Polyolefin molding composition for producing fibers,...

C - Chemistry, Metallurgy

08

F

C08F 10/00 (2006.01) C08F 10/06 (2006.01) C08F 210/04 (2006.01) C08L 23/02 (2006.01) C08L 23/10 (2006.01) C08L 23/14 (2006.01) D01F 6/06 (2006.01) C08F 110/06 (2006.01) C08F 210/06 (2006.01)

Patent

CA 2110441

- 1 - Abstract: Polyolefin molding composition for producing fibers, filaments and webs by melt spinning Polyolefin molding composition consisting essentially of a polyolefin formed from an olefin having at least 3 carbon atoms of the formula Ra-CH = CH-Rb, where Ra and Rb are identical or different and each is hydrogen or C1-C15-alkyl, straight-chain or branched, or Ra and Rb together with the atoms joining them together form a ring system, and from 0 to 10% by weight of ethylene or of a second olefin have the abovementioned meaning as comonomer, characterized by a 230/2.16 MFI from 5 to 1000 g/10 min, a 230/5 MFI from 15 to 3000 g/10 min, a molecular weight (Mw) from 75,000 to 350,000 g/mol, a polydispersity (Mw/Mn) from 1.8 to 3.5, a viscosity number from 70 to 300 cm3/g, a melting point from 120 to 165°C, an isotactic block length from 25 to 150, and ether extractables less than 2% by weight, based on the total weight of the polymer.

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