Vinyl terminated higher olefin polymers and methods to produce same
A technology of olefin copolymer and advanced olefin, applied in the field of olefin copolymerization
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Embodiment 1-6
[0422] The polymerization condition of embodiment 1-6
[0423]Polymer grade propylene was used and further purified by passing it through a series of columns: a 2250 cc Oxyclear cylinder from Labclear (Oakland, CA), followed by drying 3 A 2250cc column of molecular sieves, two packed with dry 5 A 500 cc column of molecular sieves, a 500 cc column packed with ALCOA Selexsorb CD (7 x 14 mesh) from Coastal Chemical Company (Abbeville, LA), and a 500 cc column packed with ALCOA Selexsorb COS ( 7×14 mesh) 500cc column.
[0424] Polymer grade hexane was further purified by passing it through a series of columns: two 500 cc Oxyclear cylinders from Labclear, followed by two cylinders packed with dry 3 A 500cc column of molecular sieves, and two packed with dry 5 A 500cc column of molecular sieves.
[0425] Purifiers and co-catalysts
[0426] Triisobutylaluminum (TIBAL) was obtained from Akzo Chemicals, Inc. (Chicago, IL) and used without further purification. Tri-n-octyl...
Embodiment 1
[0429] Example 1: Decene-Propylene, Hexene-Propylene and Decene-Hexene Using Metallocenes E and F - Polymerization of propylene
[0430] The reactor was prepared as above and subsequently charged with 1-decene and / or 1-hexene. The reactor was heated to 25°C and then propylene was charged into the reactor. The scavenger / cocatalyst solution at process temperature and pressure is then added via syringe to the reactor. The reactor was heated to process temperature (85°C) and stirred at 800 RPM.
[0431] The metallocene catalyst was mixed with activator and stirred in toluene at ambient temperature and pressure, and added as a solution via syringe into the reactor (at process temperature and pressure) to initiate polymerization. Since the solutions were added via syringe, after their addition the hexane solution was also injected via the same syringe to ensure minimal solution remained in the syringe. Apply this procedure after adding the scavenger / cocatalyst and catalyst so...
Embodiment 2
[0441] Example 2: Octene-Propylene Copolymerization Using Metallocenes E and G
[0442] The solution test was performed as follows: first propylene was added to the reaction well, followed by octene and isohexane so that the total solution volume was 5.0 milliliters. TNOAL was used as a scavenger at a concentration of 1M. A solution of activator III in toluene was added first, followed by a solution of metallocene E or F, so that the ratio of activator to metallocene was 1:1. The well was heated to 85°C and the reaction was carried out for 1 hour. The reaction was quenched with air and unreacted monomer was removed in vacuo. Analysis of a portion of the well products is listed in Table 2B.
[0443]
[0444]
[0445] Data from analysis of a portion of the well products are shown in Table 2B below.
[0446]
[0447] VYD=vinylidene
PUM
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