公开(公告)号：EP4232510A1

公开(公告)日：2023-08-30

申请号：EP21791305.2

申请日：2021-10-11

Applicant: Basell Poliolefine Italia S.r.l.

Inventor： MUSACCHI, Gianluca ,  MARCHINI, Roberta ,  DI PIETRO, Fabio

IPC: C08L23/06

公开(公告)号：EP2225324B1

公开(公告)日：2016-12-14

申请号：EP08865286.2

申请日：2008-11-26

Applicant: Basell Poliolefine Italia S.r.l.

Inventor： DI PIETRO, Fabio ,  DE PALO, Roberto

IPC: C08L23/10 ,  C08L23/22 ,  D01F6/00

CPC classification number: D01F6/46 ,  C08L23/10 ,  C08L23/22 ,  Y10T428/249921 ,  Y10T442/60 ,  C08L2666/06

公开(公告)号：EP2225324A1

公开(公告)日：2010-09-08

申请号：EP08865286.2

申请日：2008-11-26

Applicant: Basell Poliolefine Italia S.R.L.

Inventor： DI PIETRO, Fabio ,  DE PALO, Roberto

IPC: C08L23/10 ,  C08L23/22 ,  D01F6/00

CPC classification number: D01F6/46 ,  C08L23/10 ,  C08L23/22 ,  Y10T428/249921 ,  Y10T442/60 ,  C08L2666/06

Abstract: A polyolefin composition comprising: A) 50-90 %wt of of polypropylene homopolymer with an isotactic index (percentage by weight of fraction insoluble in boiling n-heptane) higher than 80, preferably between 90 and 98, or crystalline copolymer of propylene with ethylene and/or an alpha -olefin having 4-10 carbon atoms, containing 85% or more of propylene and having an isotactic index equal to or higher than 80; B) 10-50%wt of Butene-1 (co)polymers having a content of butene-1 units in the form of isotactic pentads (mmmm) from 25 to 70%; intrinsic viscosity [η] measured in tetraline at 135°C from 1 to 3 dL/g; a content of xylene insoluble fraction at 0°C from 3 to 60%. Fibers and spun bond (woven non woven) and geotextile thereof.

公开(公告)号：EP1834015B1

公开(公告)日：2008-11-19

申请号：EP05823596.1

申请日：2005-12-22

Applicant: Basell Poliolefine Italia S.r.l.

Inventor： SARTORI, Franco ,  GOBERTI, Paolo ,  DI PIETRO, Fabio

IPC: D01F6/46

CPC classification number: D01F6/46

Abstract: Fibres exhibiting good elastic properties and made from a thermoplastic, elastomeric polyolefin composition comprising (percent by weight): (A) 10 to less than 50% of one or more crystalline propylene polymers selected from homopolymers of propylene and random interpolymers of propylene and one or more recurring units in amounts up to 10%, the recurring units being selected from ethylene and a C 4 -C 10 a -olefin, the polymer(s) being insoluble in xylene at room temperature in an amount higher than 80%; and (B) over 50 to 90% of a polymer fraction comprising one or more interpolymers of ethylene and at least one a-olefin of formula H 2 C=CHR 2 , where R 2 is a C 1 -C 8 linear or branched alkyl, containing from 13 to less than 60% of recurring units deriving from ethylene. The fibres are prepared by a process operating at a value of output per hole ranging from 5 to 15 g/min, the pressure in the extruder ranging from 15 to 30 bar, the temperature in the extruder head ranging from 200 to 300° C.

公开(公告)号：EP1834015A1

公开(公告)日：2007-09-19

申请号：EP05823596.1

申请日：2005-12-22

Applicant: Basell Poliolefine Italia S.r.l.

Inventor： SARTORI, Franco ,  GOBERTI, Paolo ,  DI PIETRO, Fabio

IPC: D01F6/46

CPC classification number: D01F6/46

Abstract: Fibres exhibiting good elastic properties and made from a thermoplastic, elastomeric polyolefin composition comprising (percent by weight): (A) 10 to less than 50% of one or more crystalline propylene polymers selected from homopolymers of propylene and random interpolymers of propylene and one or more recurring units in amounts up to 10%, the recurring units being selected from ethylene and a C4-C10 α -olefin, the polymer(s) being insoluble in xylene at room temperature in an amount higher than 80%; and (B) over 50 to 90% of a polymer fraction comprising one or more interpolymers of ethylene and at least one α-olefin of formula H2C=CHR2, where R2 is a C1-C8 linear or branched alkyl, containing from 13 to less than 60% of recurring units deriving from ethylene. The fibres are prepared by a process operating at a value of output per hole ranging from 5 to 15 g/min, the pressure in the extruder ranging from 15 to 30 bar, the temperature in the extruder head ranging from 200 to 300° C.