Patents by Inventor Christelle Grein

Christelle Grein has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20130253125
    Abstract: Polypropylene composition having a melt flow rate MFR2 (230° C.) of equal or above 15 g/10 min comprising: (a) a crystalline polypropylene matrix; (b) an elastomeric propylene copolymer phase having a propylene content in the range of 40 to 80 wt.-%, and an intrinsic viscosity in the range of more than 0.7 to less or equal 2.5 dl/g; (c) a first polyethylene having a density in the range 905 to 925 kg/m3 and melt flow rate MFR2 (190° C.) of below 30 g/10 min; (d) a second polyethylene having a density of above 915 kg/m3, and a melt flow rate MFR2 (190° C.) of equal or above 30 g/10 min.
    Type: Application
    Filed: September 12, 2011
    Publication date: September 26, 2013
    Applicant: BOREALIS AG
    Inventors: Cornelia Kock, Christelle Grein, Floran Prades
  • Publication number: 20130203908
    Abstract: Polypropylene composition comprising (a) a high melt strength polypropylene having a melt flow rate MFR2 (230° C.) of equal or below 15 g/lOmin and a branching index g? of below 1.0, (b) a first heterophasic propylene copolymer comprising a polypropylene having a melt flow rate MFR2 (230° C.) in the range of 50 to 500 g/lOmin and an elastomeric propylene copolymer having a propylene content in the range of 50 to 80 wt.-% and an intrinsic viscosity (IV) of equal or more than 2.5 dl/g, (c) a second heterophasic propylene copolymer comprising a random propylene copolymer having a melt flow rate MFR2 (230° C.) in the range of 1 to 40 g/lOmin, a branching index g? of 1.0, and a comonomer content of more than 0.5 wt.-%, and an elastomeric propylene copolymer having a propylene content in the range of 50 to 80 wt.-%, and an intrinsic viscosity (IV) of equal or below 2.4 dl/g, (d) a polyethylene plastomer having an ethylene content of at least 50 wt.-%, and (e) a mineral filler (F).
    Type: Application
    Filed: August 25, 2011
    Publication date: August 8, 2013
    Applicant: BOREALIS AG
    Inventors: Cornelia Kock, Christelle Grein, Tonja Schedenig
  • Patent number: 8476395
    Abstract: The present invention relates to a polypropylene composition comprising a propylene homopolymer or a propylene random copolymer having at least one comonomer selected from alpha-olefins with 2 or 4-8 carbon atoms and a comonomer content of not more than 8.0 wt %, wherein the propylene homo- or copolymer is polymerized in the presence of a Ziegler-Natta catalyst, and the polypropylene composition has a MWD of 2.0 to 6.0 and an MFR (2.16 kg/230° C.) of 4.0 g/10 min to 20.0 g/10 min, characterized in that the polypropylene composition has not been subjected to a vis-breaking step, the use of the inventive polypropylene composition for the production of a film and/or injection molded articles, a process for preparing a film wherein the inventive polypropylene composition is formed into a film, and wherein the polypropylene composition has not been subjected to a vis-breaking step and a film comprising the inventive polypropylene composition.
    Type: Grant
    Filed: July 13, 2009
    Date of Patent: July 2, 2013
    Assignee: Borealis AG
    Inventors: Christelle Grein, Tonja Schedenig
  • Publication number: 20130143996
    Abstract: A composition comprising: (I) 60 to 92.5 wt % of a first component which is a polypropylene polymer comprising a) 40 to 85 wt % of a propylene polymer A having a melt flow rate (MFR2) between 0.01 and 300 g/10 min, and b) 15 wt % or more of at least one propylene ethylene copolymer; and (II) 2.5 to 30 wt % of a second component comprising at least one ethylene alkyl (meth)acrylate polymer; and optionally (III) 5 to 25 wt % of at least one filler.
    Type: Application
    Filed: May 19, 2011
    Publication date: June 6, 2013
    Applicant: BOREALIS AG
    Inventors: Klaus Bernreitner, Juliane Braun, Christelle Grein, Georg Grestenberger, Claudia Kniesel
  • Patent number: 8319102
    Abstract: The present invention relates to a Insulation layer for cables, a composition and a process thereof, showing improved stress whitening resistance by maintaining good mechanical and electrical properties and being environmental friendly.
    Type: Grant
    Filed: April 11, 2007
    Date of Patent: November 27, 2012
    Assignee: Borealis Technology Oy
    Inventors: Christelle Grein, Magnus Palmlof, Markus Gahleitner, Bernt-Ake Sultan, Ulf Torgersen
  • Patent number: 8207272
    Abstract: Heterophasic polypropylene composition comprising:—a polypropylene matrix (M) and—an elastomeric copolymer (E) being dispersed in the matrix (M), wherein the elastomeric copolymer (E) comprises units derived from—propylene and—ethylene and/or C4 to C20 ?-olefin, and wherein further,—the intrinsic viscosity of the xylene cold soluble fraction (XCS) of the heterophasic polypropylene composition is above 2.1 dl/g measured according to ISO 1628-1 (at 135° C. in decaline) and/or—Mz/Mw of the xylene cold soluble fraction (XCS) of the heterophasic polypropylene composition is more than 2.6, preferably 2.7, wherein the Mz is the z-average molecular weight measured according to ISO 16014-4:2003 and Mw is the weight average molecular weight measured according to ISO 16014-4:2003.
    Type: Grant
    Filed: October 28, 2009
    Date of Patent: June 26, 2012
    Assignee: Borealis AG
    Inventors: Klaus Bernreitner, Christelle Grein
  • Patent number: 8173747
    Abstract: The present invention relates to a heterophasic polypropylene composition which is sterilizable and has a high impact strength as well as improved optical properties both before and after a step of heat sterilization. Furthermore, the present invention relates to a film comprising said heterophasic polypropylene composition, and to the use of said composition for the production of a film. Finally, the present invention is directed to the use of such a film as a packaging material for medicals and/or food. The heterophasic polypropylene composition comprises a matrix resin which comprises (A) a propylene homopolymer and (B) a propylene random copolymer; and a dispersed phase which comprises (C) an ethylene-propylene rubber wherein (i) the melting point of the heterophasic polypropylene composition is at least 145° C. and (ii) the content of comonomer in the matrix resin is at least 0.5 wt % based on the entire matrix resin without any additives.
    Type: Grant
    Filed: August 6, 2008
    Date of Patent: May 8, 2012
    Assignee: Borealis Technology Oy
    Inventors: Christelle Grein, Tonja Schedenig
  • Publication number: 20120088086
    Abstract: Process for the production of polypropylene random copolymers containing 2.5 to 5.0 wt % of ethylene as comonomer and having an MFR2 in accordance with ISO 1 133 (230° C., 2.16 kg load) of ?25 g/10 min to 100 g/10 min and a hexane-solubles content, determined according to FDA CFR 21 §177.
    Type: Application
    Filed: March 1, 2010
    Publication date: April 12, 2012
    Applicant: Bore-Alis AG
    Inventors: Christelle Grein, Klaus Bernreitner, Mari Kylmälä, Balakantha rao Kona, Elisabeth Potter
  • Publication number: 20120034454
    Abstract: The present invention relates to a composition comprising (A) an LDPE in an amount of 15 to 50 wt.-% and (B) a polymer blend in an amount of 50 to 85 wt.-%, wherein polymer blend (B) consists of 20-80 wt.-% propylene random copolymer having a C2 content of equal or below 4 wt.-% and 80-20 wt.
    Type: Application
    Filed: February 12, 2010
    Publication date: February 9, 2012
    Inventors: Tonja Schedenig, Christelle Grein, Dietrich Gloger
  • Patent number: 8030403
    Abstract: The present invention relates to a composition, in particular to a polypropylene composition, and articles thereof, having an optimal balance between mechanical properties and transparency and thus the composition is particular suitable for packaging applications.
    Type: Grant
    Filed: June 12, 2007
    Date of Patent: October 4, 2011
    Assignee: Borealis Technology Oy
    Inventors: Markus Gahleitner, Nina Ackermans, Tung Pham, Espen Ommundsen, Christelle Grein, Doris Machl
  • Publication number: 20110218293
    Abstract: The invention relates to propylene polymer compositions comprising 50-70 wt % of a propylene homo- or copolymer, 5-20 wt % of a first elastomeric ethylene-propylene copolymer, 5-25 wt % of a second elastomeric ethylene-propylene copolymer and 5-30 wt % of an ethylene polymer. The propylene polymer compositions are suitable for moulding and they have low haze and a good impact strength/stiffness balance with good impact strengths at low temperatures.
    Type: Application
    Filed: March 2, 2011
    Publication date: September 8, 2011
    Applicant: BOREALIS TECHNOLOGY OY
    Inventors: Johannes WOLFSCHWENGER, Christelle Grein, Klaus Bernreitner, Markus Gahleitner, Thor Kamfjord
  • Publication number: 20110201758
    Abstract: Heterophasic polypropylene composition comprising:—a polypropylene matrix (M) and—an elastomeric copolymer (E) being dispersed in the matrix (M), wherein the elastomeric copolymer (E) comprises units derived from—propylene and—ethylene and/or C4 to C20 ?-olefin, and wherein further,—the intrinsic viscosity of the xylene cold soluble fraction (XCS) of the heterophasic polypropylene composition is above 2.1 dl/g measured according to ISO 1628-1 (at 135° C. in decaline) and/or—Mz/Mw of the xylene cold soluble fraction (XCS) of the heterophasic polypropylene composition is more than 2.6, preferably 2.7, wherein the Mz is the z-average molecular weight measured according to ISO 16014-4:2003 and Mw is the weight average molecular weight measured according to ISO 16014-4:2003.
    Type: Application
    Filed: October 28, 2009
    Publication date: August 18, 2011
    Inventors: Klaus Bernreitner, Christelle Grein
  • Publication number: 20110196078
    Abstract: The invention relates to propylene polymer blends comprising 70-92 wt % of a propylene homopolymer, 5-15 wt % of an elastomeric ethylene-propylene copolymer, 3-15 wt % of a linear low density polyethylene and an a-nucleating agent. The propylene polymer blends have an excellent impact strength/stiffness balance and optical properties. They are especially suitable for thermoforming and extrusion blow moulding.
    Type: Application
    Filed: April 20, 2011
    Publication date: August 11, 2011
    Applicant: Borealis Technology Oy
    Inventors: Johannes WOLFSCHWENGER, Christelle Grein, Klaus Bernreitner, Elina Myhre, Max Wachholder, Paul De Mink
  • Publication number: 20110129627
    Abstract: Polymer composition comprising—a heterophasic propylene copolymer comprising a polypropylene matrix and an elastomeric propylene copolymer comprising at least one comonomer selected from the group consisting of ethylene and C4 to C20 ?-olefin, and—a styrenic based elastomer(s) (B), wherein the styrene content in each styrenic based elastomer (B) is equal or below 15 wt.-%, and the total amount of the styrenic based elastomer(s) (B) based on the total amount of polymers present in the polymer composition is of 16.0 to 46.0 wt.-%.
    Type: Application
    Filed: July 27, 2009
    Publication date: June 2, 2011
    Applicant: Borealis AG
    Inventors: Tonja Schedenig, Christelle Grein, Dietrich Gloger
  • Publication number: 20110086970
    Abstract: Reactor grade thermoplastic polyolefins with high flowability and excellent surface quality comprising (A) 40-90 wt % of a propylene homo- or copolymer matrix with an MFR in accordance with ISO 1 133 (230° C., 2.16 kg load) of >200 g/10 min and (B) 2-30 wt % of an elastomeric ethylene-propylene copolymer having an intrinsic viscosity IV (according to ISO 1628 with decalin as solvent) of ?2.8 dl/g and an ethylene content of >50 to 80 wt % and (C) 8-30 wt % of an elastomeric ethylene-propylene copolymer having an intrinsic viscosity IV (according to ISO 1628 with decalin as solvent) of 3.0-6.
    Type: Application
    Filed: June 12, 2009
    Publication date: April 14, 2011
    Applicant: Borealis AG
    Inventors: Christelle Grein, Klaus Bernreitner
  • Publication number: 20110065873
    Abstract: The present invention relates to a polypropylene composition comprising a propylene homopolymer or a propylene random copolymer having at least one comonomer selected from alpha-olefins with 2 or 4-8 carbon atoms and a comonomer content of not more than 8.0 wt %, wherein the propylene homo- or copolymer is polymerized in the presence of a Ziegler-Natta catalyst, and the polypropylene composition has a MWD of 2.0 to 6.0 and an MFR (2.16 kg/230° C.) of 4.0 g/10 min to 20.0 g/10 min, characterized in that the polypropylene composition has not been subjected to a vis-breaking step, the use of the inventive polypropylene composition for the production of a film and/or injection molded articles, a process for preparing a film wherein the inventive polypropylene composition is formed into a film, and wherein the polypropylene composition has not been subjected to a vis-breaking step and a film comprising the inventive polypropylene composition.
    Type: Application
    Filed: July 13, 2009
    Publication date: March 17, 2011
    Inventors: Christelle Grein, Schedenig Tonja
  • Publication number: 20110034634
    Abstract: High purity heterophasic polypropylene copolymers comprising (A) 73 to 98 wt % of a propylene homo- or copolymer matrix with an MFR2 in accordance with ISO 1133 (230° C., 2.16 kg load) of ?45 g/10 min and (B) 2 to 27 wt % of an elastomeric copolymer, comprising propylene in an amount of at least 50 wt % of component (B) and at least ethylene and/or one other C4 to C10 alpha olefin in an amount of up to 50 wt % of component (B), the heterophasic polypropylene copolymers being obtainable by a multistage polymerization process in the presence of a catalyst system comprising (i) a Ziegler-Natta procatalyst which contains a trans-esterification product of a lower alcohol and a phthalic ester and (ii) optionally an organometallic cocatalyst and (iii) an external donor represented by formula (I) Si(OCH2CH3)3(NR1R2) wherein R1 and R2 can be the same or different a represent a hydrocarbon group having 1 to 12 carbon atoms, their production and use.
    Type: Application
    Filed: December 18, 2008
    Publication date: February 10, 2011
    Applicant: Borealis AG
    Inventors: Christelle Grein, Klaus Bernreitner, Torvald Vestberg
  • Publication number: 20100247375
    Abstract: The invention relates to the use of a polyolefin composition comprising a propylene-ethylene random copolymer having an ethylene content of 0.5-10 wt % and a randomness R of the ethylene distribution in the polymer chain of ?0.945 for the production of articles having high sterilisation resistance.
    Type: Application
    Filed: August 26, 2008
    Publication date: September 30, 2010
    Applicant: Borealis Technology Oy
    Inventors: Christelle Grein, Tonja Schedenig
  • Publication number: 20100249329
    Abstract: The present invention relates to a heterophasic polypropylene composition which is sterilisable and has a high impact strength as well as improved optical properties both before and after a step of heat sterilisation. Furthermore, the present invention relates to a film comprising said heterophasic polypropylene composition, and to the use of said composition for the production of a film. Finally, the present invention is directed to the use of such a film as a packaging material for medicals and/or food. The heterophasic polypropylene composition comprises a matrix resin which comprises (A) a propylene homopolymer and (B) a propylene random copolymer; and a dispersed phase which comprises (C) an ethylene-propylene rubber wherein (i) the melting point of the heterophasic polypropylene composition is at least 145° C. and (ii) the content of comonomer in the matrix resin is at least 0.5 wt % based on the entire matrix resin without any additives.
    Type: Application
    Filed: August 6, 2008
    Publication date: September 30, 2010
    Applicant: BOREALIS TECHNOLOGY OY
    Inventors: Christelle Grein, Tonja Schedenig
  • Patent number: 7786204
    Abstract: A propylene polymer composition having a high impact strength and a high stiffness for the manufacture of parts having an excellent surface quality comprising A) 70 to 98 wt.-% of a heterophasic propylene copolymer with ethylene or an alpha-olefin with 4 to 12 carbon atoms, the propylene copolymer, which contains more than 60 wt.-% propylene, having a melt flow rate (MFR2) of 0.5 to 50 g/10 min and a ratio between elastomer molecular weight and total molecular weight expressed as Mw/Mw(XCS) of more than 0.8, Mw being the weight average molecular weight of the propylene copolymer and Mw(XCS) being the weight average molecular weight of the propylene copolymer which is soluble in xylene at +23° C., and the propylene copolymer further containing a portion of 5 to 35 wt.-% soluble in xylene at +23° C. (XCS content), B) 2 to 30 wt.-% of a mineral filler, C) 0.0001 to 1.0 wt.
    Type: Grant
    Filed: June 13, 2006
    Date of Patent: August 31, 2010
    Assignee: Borealis Technology Oy
    Inventors: Christelle Grein, Markus Gahleitner