Borealis Ag

Dow Global Technolgoies LLC

Rohm and Haas Company

Pavel Shutov

Daniela Mileva

Susanne Kahlen

Markus Gahleitner

Jingbo Wang

Claudia Kniesel

Jorge Jimenez

Luigi Resconi

Pauli Leskinen

Georg Grestenberger

Francois M Casati

Joseph James Zupancic

Johanna Lilja

David Elmer Vietti

Floran Prades

Cornelia Anita Tranninger

Hanno R Van Der Wal

Thomas Horill

Juliane Braun

Kevin K Miyake

Minna Aarnio-Winterhof

Karlheinz Friedrich

Wilfried Peter Toltsch

Tuan Anh Tran

Renate Eckmayr

Thomas Horrill

Wilfried Töltsch

The present invention is directed to a heterophasic polypropylene composition (HECO1) and the use thereof to reduce the amount of flow marks of an injection moulded polyolefin composition. Further, the present invention is directed to a polyolefin composition (C) comprising a polyolefin (PO), said heterophasic polypropylene composition (HECO1) and optionally a filler as well as an article comprising said polyolefin composition (C).

Polyolefin composition with improved surface appearance

The present invention relates to an olefin polymerization process, wherein propylene and a C4 to C10 a-olefin, preferably 1-butene and optionally ethylene are reacted in the presence of a Ziegler-Natta catalyst so as to obtain a polypropylene, wherein the polypropylene comprises C4 to C10 a-olefin, preferably 1-butene-derived comonomer units in an amount of from 0.5 wt % to 15 wt % and ethylene-derived comonomer units in an amount of 0 wt % to 3 wt %, and wherein the Ziegler-Natta catalyst comprises i) an external donor of the formula (I): (R)(RO)Si(R)x and ii) a solid Ziegler-Natta catalyst component being free of external carrier material.

Process for preparing propylene polymer compositions

The invention relates to a polypropylene composition (C) comprising: (i) 62 to 85 wt.-%, based on the total weight of the polypropylene composition (C), of a heterophasic propylene copolymer (HECO1) with a melt flow rate MFR(230&#xb0; C.) measured according to ISO 1133 in the range of 6.0 to 50.0 g/10 min; (ii) 10 to 30 wt.-%, based on the total weight of the polypropylene composition (C), of a heterophasic propylene copolymer (HECO2) with a melt flow rate MFR(230&#xb0; C.) measured according to ISO 1133 in the range of 0.1 to 5.5 g/10 min; (iii) 5 to 30 wt.-%, based on the total weight of the polypropylene composition (C), of an inorganic filler (F); wherein (a) the xylene cold soluble (XCS) fraction of the heterophasic propylene copolymer (HECO1) has a lower amount [in mol %] of Cand/or Cto C&#x3b1;-olefin derived comonomer units than the xylene cold soluble (XCS) fraction of the heterophasic propylene copolymer (HECO2); (b) the xylene cold soluble (XCS) fraction of the heterophasic propylene copolymer (HECO1) has a lower the intrinsic viscosity (IV) than the xylene cold soluble (XCS) fraction of the heterophasic propylene copolymer (HECO2); and (c) the xylene cold soluble (XCS) fraction of the heterophasic propylene copolymer (HECO2) has an intrinsic viscosity (IV) in the range of 6.0 to 15.0 dl/g.

Polypropylene composition with excellent paint adhesion

A heterophasic propylene copolymer (HECO) comprising a polypropylene matrix having a melt flow rate MFR(230&#xb0; C.) in the range of 40 to 120 g/10 min and a comonomer content in the range of 30 to 75 mol-% for the preparation of molded articles with low CLTE.

Heterophasic propylene copolymer with low shrinkage

The present invention is directed to a new heterophasic propylene copolymer (RAHECO) and an unoriented film comprising the heterophasic propylene copolymer (RAHECO) as well as a container comprising the unoriented film. The present invention is further directed to the use of the heterophasic propylene copolymer (RAHECO) for improving the balance between softness and haze of an unoriented film.

Soft and transparent impact copolymers

Heterophasic polypropylene composition with improved impact strength/stiffness balance and with high flowability, reduced emissions and low shrinkage, and its use.

Heterophasic polypropylene with improved impact strength/stiffness balance, improved powder flowability, reduced emissions and low shrinkage

A polyester polyol comprising at least one esterified unit of formula (I) wherein L is a difunctional aliphatic group having from two to six carbon atoms and R is a C-Calkyl group.

Aminosilane adhesion promoter for urethane system

A process for preparing a hybrid polyester-polyether polyol comprises contacting a carboxyl group-containing component and an epoxide, optionally in the presence of one or more of a double metal cyanide catalyst, a superacid catalyst, a metal salt of a superacid catalyst and/or a tertiary amine catalyst, under conditions such that a hybrid polyester-polyether polyol is formed. The hybrid polyester-polyether polyol offers the advantages of both ester and ether functionalities when used in a polyurethane formulation, thus enhancing physical properties. The process results in products having narrow polydispersity, a low acid number and unsaturation, and reduced byproduct formation, particularly when the double metal cyanide catalyst is employed.

Hybrid polyester-polyether polyols

Growing community of inventors

Linz, Austria

Pavel Shutov