Töltsch

Wilfred Töltsch, Marchtrenk AT

Patent application number	Description	Published
20160115266	PROCESS FOR THE PREPARATION OF A PROPYLENE POLYMER - A process for the preparation of a propylene polymer in a multistage polymerisation process in the presence of a single site catalyst, said process comprising: (I) in a prepolymerisation step prepolymerising a single site catalyst in the presence of propylene and optionally at least one C2-10 alpha olefin comonomer and in the presence of hydrogen or in the absence of hydrogen; (II) in a slurry polymerisation step, polymerising propylene and optionally at least one C2-10 alpha olefin comonomer, with the pre-polymerised catalyst of step (I) in the presence of hydrogen; and subsequently (III) in a gas polymerisation step polymerising propylene and optionally at least one C2-10 alpha olefin comonomer, in the presence of catalyst and polymer from step (II) and optionally in the presence of hydrogen so as to form a propylene homopolymer or copolymer; wherein the amount of hydrogen fed to the pre-polymerisation step (I) is at most 15% of the total amount of hydrogen fed to steps (I) and (II) of the polymerisation process.	04-28-2016

Wilfried Töltsch, Marchtrenk AT

Patent application number	Description	Published
20110104416	PROPYLENE-HEXENE RANDOM COPOLYMER PRODUCED IN THE PRESENCE OF A ZIEGLER NATTA CATALYST - Propylene copolymer a. comprising at least 1-hexene as a comonomer, b. having a comonomer content in the range of 1.0 to 3.0 wt.-%, c. having a xylene soluble fraction equal or below 2.5 wt.-%, and d. being partially crystallized in the β-modification.	05-05-2011
20140079899	PROPYLENE-HEXENE RANDOM COPOLYMER PRODUCED IN THE PRESENCE OF A ZIEGLER NATTA CATALYST - Propylene copolymer a. comprising at least 1-hexene as a comonomer, b. having a comonomer content in the range of 1.0 to 3.0 wt.-%, c. having a xylene soluble fraction equal or below 2.5 wt.-%, and d. being partially crystallized in the β-modification.	03-20-2014

Wilfried Töltsch, Marchtrenk AT

Patent application number	Description	Published
20110104416	PROPYLENE-HEXENE RANDOM COPOLYMER PRODUCED IN THE PRESENCE OF A ZIEGLER NATTA CATALYST - Propylene copolymer a. comprising at least 1-hexene as a comonomer, b. having a comonomer content in the range of 1.0 to 3.0 wt.-%, c. having a xylene soluble fraction equal or below 2.5 wt.-%, and d. being partially crystallized in the β-modification.	05-05-2011
20110315264	Propylene-hexene random copolymer produced in the presence of a metallocene catalyst - Propylene copolymer a. comprising at least 1-hexene as a comonomer, b. having a comonomer content in the range of 1.0 to 3.0 wt.-%, c. having a xylene soluble fraction equal or below 2.5 wt.-%, d. having a polydispersity index (PI) of equal or below 4.0 Pa	12-29-2011

Wilfried Töltsch, Marchtrenck AT

Patent application number	Description	Published
20110293867	Propylene-butene random copolymer produced in the presence of a metallocene catalyst - Propylene copolymer (a) comprising at least 1-butene as a comonomer, (b) having a comonomer content in the range of 1.0 to 3.0 wt.-%, (c) having a xylene soluble fraction equal or below 2.5 wt.-%, and (d) being partially crystallized in the β-modification.	12-01-2011