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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Determination of Hexane Extractables from Cast Films: The process may include contacting, in a gas phase polymerization reactor, propylene and optionally one or more comonomers with a catalyst system comprising a Ziegler-Natta catalyst and an external electron donor system comprising di bicyclo[2.
This metallocene topology affords high melting point, very high molar mass homo polypropylene and very high molar mass propylene-based copolymers. Example 18 Film novoleh Example 9. Among the novolem 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.
The autoclave was purged three times with nitrogen. 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. The boron-aluminium compounds used may also have been deposited onto an organic or inorganic support. It has proven advantageous to use amounts of the metallocene complexes A and of the oligomeric aluminoxane compounds of the general formulae V or VI which give an atomic ratio of aluminum from the oligomeric aluminoxane compounds to transition metal from the metallocene complexes in the range from The polymerization was ceased by degassing.
Patents Assigned to Lummus Novolen Technology GmbH – Justia Patents Search
Propylene copolymer compositions having a good low-temperature impact toughness and a high transparency. Examples 7, 8 and 9 are single polymer components and not polymer blends. Examples of suitable metallocenium-ion-forming compound B are strong neutral Lewis acids, ionic compounds with Lewis-acid cations and ionic compounds with Bronsted acids as cations. As metallocene compounds A of the catalyst system of the present invention, use is made of at least one compound of the formula I below, R 9 L 1 L 2 M 1 R 1 R 2 Formula I where the substituents have the following meanings: Example 21 Film of Example Sealing pressure most commonly used was lumjus psi.
The solid thus obtained was filtered off and washed a number of times with ethylbenzene. Please enter your contact information so we are able to process your request.
The polypropylene Ziegler-Natta catalyst market is expected to continue the high growth pace shown over the last decade with estimated growth rates of more lumums five percent in the next five years.
The balance between SIT and the level of solubles as well as the haze of these compositions need improvement.
CROSS-REFERENCE TO RELATED APPLICATIONS
Example Example 2 was repeated lummux the exception that different amounts of hydrogen, ethylene and propylene were fed to the reactor. Polymer powder is continually withdrawn from the reactors. After this time, all sample material was dissolved. Comparative Example 31 had a MFR of 4.
The composition of claim 1, wherein both random copolymers of novolsn polymer blend were prepared by means of a metallocene catalyst. This example demonstrates the polymerization reaction to form copolymers for blending to form the polymer blend of the invention.
Search Expert Search Quick Search. Metallocene catalysts comprise furthermore a metallocenium-ion-forming compound Band, if desired, a passivated support, and, if desired, at least one further additive component C.
The secant modulus, hexane extractables and seal initiation temperatures of the films of Examples 16 to 24 were determined as described above. For example, it is possible to polymerize two or more starting polymers separately, then to mix these by using suitable mixing equipment, such as screw extruders or diskpack plasticators, kneaders or roll mills. All blends of Examples and Comparative Examples 30 and 31 were prepared by dry mixing g of a high melting autoclave component, g of a low melting autoclave component, 0.
Dwell time was 0. Another advantage of the present invention is the fact that its compositions comprise ultra low crystallinity fractions not present in prior art compositions. This facilitates the production of the composition of the present invention tremendously. If you want to stop this, press “Cancel”. The titanium-containing solid component contained 4. The process of to claim 27, wherein the polymerization is carried out in gas phase.
The polymer was removed from the autoclave and dried overnight at room temperature and atmospheric pressure. Specimen width was 1.
The catalyst has improved activity in olefin polymerization reactions as well as good stereoregularity and hydrogen sensitivity, and may be useful in the production of phthalate-free propylene polymers having a molecular weight distribution PI GPC in the range from about 5. Decision of Refusal lummuss Jun. Finally, the stiffness of a sealing layer composition, usually expressed in terms of the E-modulus, should be as high as possible in order to provide the film with mechanical strength.
The resins of Examples 2, 3 lummhs 4 represent the high melting point component used in the polymer blend of the invention.
The secant modulus, hexane extractables and seal initiation temperatures of the films of Comparative Examples 32 to 35 ,ummus determined as described above. The film of claim 11, wherein the amount of hexane extractable fraction of the film layer comprises no more than about 3.
Comparative Examples 32 to 35 Films lummuz made from the pellets of Comparative Examples 28 to 31 as described above. This means that at relatively high levels of xylene solubles, the food relevant FDA hexane extractables are extraordinary low.
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