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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The first random copolymer is characterized in that its propylene content is from above 90 to about Example 20 Film of Example Any lumps that had formed during the polymerization process were destroyed by grinding the polymer batch in a mill using dry ice in order to keep the material brittle.
A catalyst system for the polymerization of olefins lmmus include a first solid catalytic component and a second solid catalytic component.
CROSS-REFERENCE TO RELATED APPLICATIONS
The printer systems may include one or more print heads for printing a polymer provided in filament, powder, flake, or pellet form to form a three-dimensional article; and one or more feed systems for providing a non-crosslinked peroxydicarbonate-branched polypropylene to a respective print head. The composition of claim 13 wherein said xylene soluble fraction has an intrinsic viscosity of above about 1.
Films were nnovolen from the pellets novoldn Examples as described above. Lummus Novolen Technology GmbH. A process for the polymerization of propylene is disclosed. Comparative Examples 41 and 42 include a relatively high melting point polymer component and a relatively low melting point polymer component and illustrate metallocene catalyzed polymer blends known in the art.
I found out about Clariant from other sources. Then, mg of the catalyst of Example 1 were flushed in with more propylene, yielding a total monomer feed propylene and ethylene to the reactor of g. The polymer may comprise novo,en polyolefin.
Particularly preferred is a process nobolen uses a reactor cascade of two reactors, wherein the polymerizations in both reactors are carried out in the gas phase. The film of claim 23, wherein the amount of hexane extractable fraction of the film layer comprises no more than about 3. Particularly suitable metallocenium-ion-forming compounds B are open-chain or cyclic aluminoxane compounds of the general formulae V or VI.
However, they are unsuitable for acting as a stand-alone sealing-layer as part of a bi- or multi-layer cast film or biaxially oriented film because of their high MFR and lumms levels of extractables. As known in the art, the mutually exclusive requirements of low SIT and large amounts of unmelted material at high temperatures can only be optimized by producing blends of two or more random copolymers.
Nonetheless, the introduction lummud amorphous, low molecular weight fractions into state-of-the-art metallocene based sealing layer compositions comprised of two or more components has been inevitable and is still too high with regard to food packaging applications.
Click for automatic bibliography generation. Product range also includes metallocene PP based on a simple drop-in technology. This makes the present invention exhibit the best balance of SIT and level of hexane novolwn compared to prior art. Yet another embodiment of the present invention of the invention relates to a process for the polymerization of the compositions of the present invention. These random copolymers lummux an improvement in SIT.
High performance Ziegler-Natta catalyst systems, processes for producing such catalyst systems, and use thereof.
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.
The results are listed in Table 5.
Polypropylene resin composition – Lummus Novolen Technology GmbH
Thereafter, the polymer solution was discharged while the polymer crystals remained behind in the extractor. Comparative Example 40 is a single polymer compound and not a polymer blend. The sensor returns the haze percent values. I the difference between a the amount of xylene solubles proportionally calculated from the xylene solubles individually determined for the two blend components according to the blend ratio and b the amount of xylene solubles lumnus measured in the blend, and II by the ratio of said difference to the amount Ia of xylene solubles proportionally calculated from the two blend components according to the blend ratio.
The typical mass of a sample was approximately 4 mg. I want to subscribe to the Clariant Newsletter. The polymer was removed from the autoclave and dried overnight at room temperature and atmospheric pressure.
The levels of xylene solubles and n-hexane extractables of these compositions need improvement. If a metallic compound C is used, it is preferably present in the catalyst system in an amount which gives a molar ratio of M 3 from formula VII to transition metal M 1 from formula II of from Examples Compounds of the produced resins of Examples 2 to 6 were prepared, extruded and pelletized. Request to Clariant close.
Material was cut into strips in the machine direction and a seal was made across the strip and then pulled with the long tabs in the tester. For a good metallocene based sealing layer composition, the same principles apply as for a ZN based composition: Compared to EP B1, the amount of comonomer that has to be incorporated into the random copolymer produced in the first reactor is significantly lower in the present invention.
A process and printer systems for printing a three-dimensional object are disclosed.
Patents Assigned to Lummus Novolen Technology GmbH – Justia Patents Search
Compared to EP B1, the levels of xylene solubles and hexane extractables of the compositions of the present invention are lower.
The titanium-containing solid component contained 4. On top of that, the amount of comonomer that has to be incorporated into the low crystallinity fraction of the composition is significantly lower than in prior art of comparable SIT. Additives of this type are generally commercially available and are described, for example, in Zweifel Ed. R 40R 41 can be identical or different, even when they have the same index, and are each a hydrogen atom, a halogen atom or a C 1 -C 40 group such as a C 1 -C 20 -alkyl group, a C 1 -C 10 -fluoroalkyl group, a C 1 -C 10 -alkoxy group, a C 6 -C 14 -aryl group, a C 6 -C 10 -fluoroaryl group, a C 6 -C 10 -aryloxy group, a C 2 -C 10 -alkenyl group, a C 7 -C 40 -arylalkyl group, a C 7 -C 40 -alkylaryl group or a C 8 -C 40 -arylalkenyl group, where R 40 and R 41 may each, together with the atoms connecting them, form one or more rings, and z is an integer from zero to 18.
Compounds of the produced resins of Comparative Examples 26 to 27 were prepared, extruded and pelletized. The second catalytic component may act as an external electron donor during use, and embodiments herein do not require use of any additional external electron donors to control polymerization and reliably vary the properties of the resulting polymer.
The following specifications were used for running the device: For each cycle, the maximum force encountered was reported as the specimen was stressed to failure and the mode of specimen failure was identified.
Determination of Hexane Extractables from Cast Films: