Clariant and Lummus Novolen will jointly invest about CHF 65 million in this new stateof-the-art polypropylene catalyst production line at. Lummus Novolen Technology GmbH company research & investing information. Find executives and the latest company news. Lummus Technology licenses its Novolen® gas phase polypropylene (PP) technology for the production of the full range of PP resins. This reliable, versatile .
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No hydrogen was used in any of the polymerizations, and the amount of propylene and ethylene fed to the reactor were different.
The resins of Comparative Examples 38 and 39 represent the relatively low melting point components. A metallocene compound with the 4- and 7-positions on the indenyl moiety possessing large aromatic substituents is prepared in accordance with a method which produces substantially percent racemic isomer.
What is claimed is: A low SIT is related to large amounts of the sealing layer material melting at temperatures as low as possible, but above room temperature. Improved Ziegler-Natta catalysts and methods of making the improved catalyst are described. The polypropylene crystals were extracted at this temperature for 20 minutes with vigorous mixing. Further analytical data are given in Table 8. Novoken to EP B1, the levels of xylene solubles and hexane extractables of the compositions of the present invention are lower.
Patents Assigned to Lummus Novolen Technology GmbH – Justia Patents Search
The MFR, C 2 contents, melting points and xylene solubles of the resins of Examples 7 to 15 were determined from the pellets as described above.
Films were made from the pellets of Examples as described above. The present invention relates to polypropylene resin compositions, and particularly to polypropylene resin compositions suited for heat sealing applications. After the discharging, the extractor was heated to the next elution temperature and ml of xylene at the same temperature were added.
Particularly preferred novlen compounds of the formula VII are n-butyllithium, n-butyl-n-octylmagnesium, n-butyl-n-heptyl-magnesium, tri-n-hexylaluminum, tri-isobutylaluminum, triethyl-aluminum and trimethylaluminum. After the extraction, the hexane was removed by evaporation and the dried residue nobolen weighed. Those skilled in the art will envision many other embodiments within the scope and spirit of the invention as defined by the claims appended hereto.
It is moreover possible for the component B used to be aryloxyaluminoxanes, as described in U.
Polypropylene Process by Lummus Novolen Technology GmbH | Process Engineering News & Updates
lumkus The processes may include providing a non-crosslinked peroxydicarbonate-branched polypropylene filament, flake, pellet, or powder adapted for one of a fused deposition modeling Arburg Plastic Freeforming printer or a fused filament fabrication printer; and printing the non-crosslinked peroxydicarbonate-branched polypropylene with fused deposition modeling Arburg Plastic Freeforming printer onvolen a fused filament fabrication printer to form a three-dimensional article.
X 1X 2 and X 3 are hydrogen, C 1 -C 10 -alkyl, C 6 -C 15 -aryl, alkylaryl, arylalkyl, haloalkyl or haloaryl with in each case from 1 to 10 carbon atoms in the alkyl radical and from 6 to 20 carbon atoms in the aryl radical or fluorine, chlorine, bromine or iodine, in particular haloaryl, preferably pentafluorophenyl. Due to possible changes in our products and applicable national and international regulations and laws, the status of our products could change.
Among the metallic compounds of the general formula VIIpreference is given to those in which M 3 is lithium, magnesium or aluminum, and R 23 and R 24 are C 1 -C 10 -alkyl. All blends of Comparative Examples were prepared by dry mixing 7 g of a high melting autoclave component, 3 g of a low melting autoclave component, 0.
Comparative Example 31 had a MFR of 4. The composition of claim 1 wherein said xylene soluble fraction has an intrinsic viscosity of above about 2. Click for automatic bibliography generation. The ratio of the partial pressures of propylene to ethylene was The following experimental procedures were performed: The following films were prepared:. Lumkus Mw of X 5d was At room temperature, 0. The composition of claim 13 wherein said xylene soluble fraction has an intrinsic viscosity of above about 2.
The following films were prepared: This means that at relatively high levels of xylene solubles, the food relevant FDA hexane extractables are extraordinary low.
A single point calibration is used. Example 23 Film of Example The resins of Examples 5 and 6 represent the relatively low melting point component used in the polymer blend of the invention. For additional information, please contact Clariant.
CROSS-REFERENCE TO RELATED APPLICATIONS
Determination of Hexane Luummus from Cast Films: This limits large-scale production of such compositions to specialty processes as described in EP B1 and in [P. Example 1 This example demonstrates the preparation of a metallocene olefin polymerization catalyst. The random block copolymer is characterized by both high toughness and low haze.
Since these compositions are aiming at films with an improved balance of mechanical properties, the SIT is not competitive with the SIT of low sealing compositions.
Compared to the compositions disclosed in EP B1, the levels of hexane extractables of the compositions of the present invention are lower. Films were made from the pellets of Comparative Examples 28 to 31 as described above.
The composition is comprised of from 0 to 10 weight percent, preferably from 0 to 5 weight percent of the fraction soluble in xylene, from 10 to 50 weight percent, preferably from 15 to 45 weight percent of the low crystallinity fraction, from 0 to 20 weight percent, preferably from 0 to 10 weight percent of the intermediate crystallinity fraction, from 20 to 70 weight percent, preferably from 30 to 60 weight percent of the high crystallinity fraction, and from 0 to 5 weight percent of the very high crystallinity fraction.
Specimens were tested on a black surface with a surface reflectance of less than 1 gloss unit. I found Clariant through social media. The specimen was then loaded in machine direction into pneumatic grips 80 psi and run on tester. Another embodiment of the present invention relates to polypropylene compositions comprising a high crystallinity component and a low crystallinity component characterized by the amount of the low crystallinity component nucleated by the high crystallinity component, expressed both by: Examples of suitable support materials are inorganic oxides of silicon, of aluminum, of titanium, or of one of the metals of the 1st or 2nd main group of the Periodic Table or mixtures of these oxides, among which, besides alumina and magnesium oxide and phyllosilicates, preference is in particular given to silica gel.
The results in terms of population of fractions are set forth in Table 9. Metallocene compounds, catalysts comprising them, process for producing an olefin polymer by use of the catalysts, and olefin homo- and copolymers.
They need improvement in SIT. The composition can be broken down into a fraction soluble in xylene, a low crystallinity fraction, an intermediate crystallinity fraction, a high crystallinity fraction and a very high crystallinity fraction. Examples Films were made from the pellets of Examples as described above.