中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

18 records (took 0.029 seconds)

    PIPES AND POLYPROPYLENE COMPOSITION FOR THE MANUFACTURE THEREOF
    2.
    发明申请
    PIPES AND POLYPROPYLENE COMPOSITION FOR THE MANUFACTURE THEREOF 有权

    公开(公告)号：US20210340367A1

    公开(公告)日：2021-11-04

    申请号：US17282294

    申请日：2019-09-11

    Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

    Inventor： MONICA GALVAN ,  CLAUDIO CAVALIERI ,  THOMAS BOEHM ,  ROBERTO PANTALEONI

    IPC: C08L23/14 ,  F16L9/12

    Abstract: A polypropylene composition made from or containing: A) from 88.0 wt. % to 98.0 wt. %, of a random copolymer of propylene containing from 0.8 wt. % to 4.8 wt. % of 1-hexene derived units; the random copolymer of propylene having: a Melt Flow Rate: measured according to ISO 1133 (230° C., 5 Kg) ranging from 0.5 to 4.4 g/10 min; and B) from 2.0 wt. % to 12.0 wt. % of a terpolymer of propylene ethylene and 1-hexene having a content of ethylene derived units ranging from 35 wt. % to 60 wt.; and a content of 1-hexene derived units ranging from 1 wt. % to 6 wt. %; wherein the polypropylene composition has a Melt Flow Rate: measured according to ISO 1133 (230° C., 5 Kg) ranging from 0.5 to 5.0 g/10 min.

    PROPYLENE POLYMER COMPOSITIONS
    3.
    发明申请
    PROPYLENE POLYMER COMPOSITIONS 审中-公开

    公开(公告)号：US20190338065A1

    公开(公告)日：2019-11-07

    申请号：US16093491

    申请日：2017-03-17

    Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

    Inventor： PAOLA MASSARI ,  MARCO CIARAFONI ,  NICOLETTA MARTINI ,  DAVIDE TARTARI ,  ROBERTO PANTALEONI

    IPC: C08F297/08

    Abstract: The present disclosure provides a propylene composition made from or containing A) from 60 wt % to 75 wt %, of a propylene homopolymer having a Polydispersity Index (P.I.) value from 4.3 to 4.9, a fraction insoluble in xylene at 25° C., higher than 95%, based upon the weight of the propylene homopolymer, and MFR (Melt Flow Rate according to ISO 1133, condition L, at 230° C. and 2.16 kg load) ranging from 20 to 75 g/10 min; B) from 25 wt % to 40 wt %, of a copolymer of propylene with from 46.0 wt % to 49.0 wt %; of ethylene derived units, based upon the weight of the propylene copolymer; wherein the propylene polymer composition having an intrinsic viscosity of the fraction soluble in xylene at 25° C. between 2.2 to 2.9 dl/g; and the relation: 10.7+1.3×MFRa−17.7×P.I.−29.3×IV+4.9×Xs  (I) between about 40 to about 66; wherein MFRa is the melt flow rate of the component A); P.I. is the polydispersity index of component A); IV is the intrinsic viscosity of the fraction soluble in xylene at 25° C.; and Xs is the fraction soluble in xylene at 25° C.; and wherein the amount of A+B is equal to 100 wt %.

    PROCESS FOR GAS-PHASE POLYMERIZATION OF OLEFINS
    6.
    发明申请
    PROCESS FOR GAS-PHASE POLYMERIZATION OF OLEFINS 审中-公开

    公开(公告)号：US20200216588A1

    公开(公告)日：2020-07-09

    申请号：US16649044

    申请日：2018-09-13

    Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

    Inventor： ANTONIO MAZZUCCO ,  ENRICO BALESTRA ,  ROBERTO PANTALEONI ,  DAVIDE TARTARI ,  RICCARDO RINALDI

    IPC: C08F210/06 ,  B01J8/26 ,  B01J8/22

    Abstract: A process for the polymerization of olefins in gas phase carried out in a reactor having two interconnected polymerization zones, a first zone (riser) and a second zone (downcomer), wherein growing polymer particles: a) flow through the riser under fast fluidization conditions established by feeding a mixture of gas and liquid; b) leave the riser and enter the downcomer, through which the growing polymer particles flow downward in a densified form; and c) leave the downcomer and are reintroduced into the riser, thereby establishing a circulation of polymer between the riser and the downcomer; the reactor is operated at a temperature between 0° C. and 5° C. above the dew point of the riser gas at the operating pressure, and in the riser, besides the growing polymer particles and gas flow, an amount of liquid is present.

    PROPYLENE BASED POLYMER COMPOSITION
    7.
    发明申请
    PROPYLENE BASED POLYMER COMPOSITION 审中-公开

    公开(公告)号：US20200087499A1

    公开(公告)日：2020-03-19

    申请号：US16610332

    申请日：2018-04-12

    Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

    Inventor： PAOLA MASSARI ,  CLAUDIO CAVALIERI ,  MARCO CIARAFONI ,  ROBERTO PANTALEONI

    IPC: C08L23/14 ,  C08L23/16

    Abstract: A propylene polymer composition made from or containing: a) from 35 wt % to 65 wt %, based upon the total weight of the propylene polymer composition, of a propylene 1-hexene copolymer containing from 10.2 to 13.0% by weight, based upon the weight of the propylene 1-hexene copolymer, of 1-hexene derived units and having a Melt Flow Rate (MFR, measured according to ASTM D 1238, 230° C./2.16 kg, (at 230° C., with a load of 2.16 kg)) from 3.5 to 12.0 g/10 min; b) from 35 wt % to 65 wt %, based upon the total weight of the propylene polymer composition, of a propylene ethylene copolymer containing from 1.5 wt % to 6.5 wt %, based upon the weight of the propylene ethylene copolymer, of ethylene derived units and having a Melt Flow Rate (MFR, measured according to ASTM D 1238, 230° C./2.16 kg, (at 230° C., with a load of 2.16 kg)) from 3.5 to 12.0 g/10 min.

    PROPYLENE COPOLYMERS
    8.
    发明申请
    PROPYLENE COPOLYMERS 审中-公开

    公开(公告)号：US20180362682A1

    公开(公告)日：2018-12-20

    申请号：US16061164

    申请日：2016-11-22

    Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

    Inventor： CLAUDIO CAVALIERI ,  PAOLA MASSARI ,  MICHELE GRAZZI ,  GIAMPAOLO PELLEGATTI ,  ROBERTO PANTALEONI

    IPC: C08F210/06 ,  C08J5/18

    Abstract: A propylene 1-hexene copolymer containing from about 5.5 to about 9.0% by weight, based upon the total weight of the copolymer, of 1-hexene derived units having: a) two melting temperature peaks in the DSC plot having a difference in height ranging from 0 to 5 mW; b) the higher melting temperature, measured by DSC, ranging from about 141.0° C. to about 151.0° C.; and c) Melt Flow Rate (MFR, measured according to ASTM D 1238, 230° C./2.16 kg) from about 3.5 to about 8.0 g/10 min.

Patent Agency Ranking