公开(公告)号：US10087318B2

公开(公告)日：2018-10-02

申请号：US15313503

申请日：2015-04-28

Applicant: BASELL POLYOLEFINE GMBH

Inventor： Claudio Cavalieri ,  Michele Grazzi ,  Roberto Pantaleoni

IPC: C08L23/12 ,  C08L23/06 ,  C08L23/08

Abstract: Ethylene polymer composition comprising, all percent amounts being by weight: A) 30-60% of an ethylene polymer containing 10% or less, referred to the weight of A), of a fraction XSA soluble in xylene at 25° C.; B) 40-70% of a copolymer of ethylene with at least one olefin of formula HC2═CHR, where R is a alkyl radical, linear or branched, having from 2 to 8 carbon atoms, containing 65-90% of ethylene and 55-15% of a fraction XSB soluble in xylene at 25° C., both the ethylene of the copolymer and XSB amounts being referred to the weight of B), the intrinsic viscosity [η] of the XSB fraction ranging from 0.8 to 3.2 dl/g; wherein the amounts of A) and B) are referred to the total weight of A)+B).

公开(公告)号：US10087317B2

公开(公告)日：2018-10-02

申请号：US15313482

申请日：2015-04-28

Applicant: BASELL POLYOLEFINE GMBH

Inventor： Claudio Cavalieri ,  Michele Grazzi ,  Roberto Pantaleoni

IPC: C08L23/06 ,  C08F210/02 ,  C08L23/08

Abstract: Ethylene polymer composition having a fusion enthalpy ΔHfus, measured by Differential Scanning Calorimetry with a heating rate of 20° C. per minute, of 60 J/g or more, comprising, all percent amounts being by weight: A) 25-55% of an ethylene polymer containing 10% or less, referred to the weight of A), of a fraction XSA soluble in xylene at 25° C.; B) 45-75% of a copolymer of ethylene and propylene containing from 45% to 70%, of ethylene and 60% or more of a fraction XSB soluble in xylene at 25° C., both the ethylene of the copolymer and XSB amounts being referred to the weight of B); wherein the amounts of A) and B) are referred to the total weight of A)+B).

公开(公告)号：US09873783B2

公开(公告)日：2018-01-23

申请号：US15320584

申请日：2015-06-17

Applicant: BASELL POLYOLEFINE GMBH

Inventor： Claudio Cavalieri ,  Michele Grazzi ,  Roberto Pantaleoni

IPC: C08L23/06 ,  C08L23/08 ,  C08L23/16 ,  C08F2/00

CPC classification number: C08L23/06 ,  C08F2/001 ,  C08L23/0815 ,  C08L23/16 ,  C08L2203/202

Abstract: The present disclosure relates to an ethylene polymer composition having an eta (0.01) equal to or higher than 35,000 Pa·s, comprising: A) 25-75% by weight of an ethylene polymer selected from ethylene homopolymers, copolymers of ethylene with 10% or less of one or more olefin comonomers, and mixtures of the homopolymers and copolymers; B) 25-75% by weight of a copolymer of ethylene and propylene comprising 45-70% by weight of ethylene; wherein eta (0.01) is the complex shear viscosity at an angular frequency of 0.01 rad/s, measured with dynamic oscillatory shear in a plate-plate rotational rheometer at a temperature of 200° C., and the amounts of A) and B) refer to the total weight of A)+B).