| Patent application number | Description | Published |
|---|
| 20080200622 | Nmr Method of Determining and Regulating the Composition of Polymer Mixtures in Polymerization - Method of determining the composition of polymer mixtures comprising defined polymer components of differing mean molar masses M | 08-21-2008 |
| 20080286509 | Polyethylene and Catalyst Composition for Its Preparation - A polyethylene which comprises ethylene homopolymers and/or copolymers of ethylene with 1-alkenes and has a molar mass distribution width M | 11-20-2008 |
| 20090311453 | Molding compostion comprsing polyethlene for preparing films and process for preparing the molding composition in the presence of a mixed catalyst - Molding composition comprising polyethylene and having a density in the range from 0.915 to 0.955 g/cm, an MI in the range from 0 to 3.5 g/10 min, an MFR in the range from 5 to 50, a polydispersity M | 12-17-2009 |
| 20090324918 | Preparation of transparent high density polyethylene sheets - A transparent high density polyethylene (HDPE) sheet is disclosed. The sheet has a thickness greater than or equal to 0.05 mm and a bulk haze less than 2%. The HDPE resin is converted into a sheet by thermal processing and the sheet is then uniaxially oriented at a temperature above the melting point of the HDPE resin. The transparent HDPE sheet of the invention can be used for windows and plastic containers. | 12-31-2009 |
| 20100130708 | Method of Controlling the Relative Activity of the Different Active Centers of Hybrid Catalysts - Method of preparing olefin polymers, which comprises the polymerization of at least one α-olefin in the presence of a hybrid catalyst to produce a polymer comprising at least a higher molecular weight polymer component and a lower molecular weight polymer component in the presence of water in an amount of from 2 to 100 mol ppm and/or carbon dioxide in an amount of from 2 to 100 mol ppm, in each case based on the total reaction mixture, in order to alter the ratio of the higher molecular weight polymer component to the lower molecular weight polymer component. This enables the ratio of the higher molecular weight component to the lower molecular weight component to be controlled selectively. | 05-27-2010 |
| 20100144988 | Monomodal Copolymer of Ethylene for Injection Molding and Process for its Preparation - Monomodal copolymers of ethylene and molding compositions comprising such copolymers, wherein the copolymers have a density determined according to DIN EN ISO 1183-1, variant A in the range from 0.938 to 0.944 g/cm | 06-10-2010 |
| 20110218309 | Preparation of ultra high molecular mass polyethylene and ultra high molecular mass polyethylene having improved crosslink ability prepared thereb - The invention pertains to a method for the preparation of ultra high molecular mass polyethylene by polymerization in suspension or in gas phase in the presence of a chromium catalyst sitting on an alumosilicate support material. The chromium catalyst has been subjected to a fluorinating treatment and the polymerization is performed under low temperature conditions within a temperature range of from 50 to 100° C. The invention pertains also to ultra high molecular mass polyethylene prepared by that method and having a density in the range of from 0.930 to 0.950 g/cm | 09-08-2011 |
| 20110251360 | Process for the Polymerization of Ethylene, and Ethylene Polymers Having Broad Molecular Weight Distribution and Long-Chain Branching - New ethylene polymers having broad molecular weight distribution and long-chain branching, above all at high molecular weight fractions; the polymers have strain hardening equal or higher than 1.4 (at constant elongational rate of 0.5 s | 10-13-2011 |
