Electronic device module comprising long chain branched (LCB), block, or interconnected copolymers of ethylene and optionally silane
A technology for electronic devices, copolymers, applied at the value of melting temperature. Fields that can solve problems such as reduced thermal creep resistance
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Embodiment 1
[0239] 2 grams of Polymer 2 (LP2) was added to a 100 ml autoclave reactor. After closing the reactor, the stirrer was started at 1000 rpm (revolutions per minute). The reactor was deoxygenated by evacuating the system and pressurizing with nitrogen. Repeat 3 times. The reactor was then pressurized to 2000 bar with ethylene at ambient temperature and then vented. Repeat 3 times. The last time the reactor was vented with ethylene, the pressure only dropped to about 100 bar, at which point the reactor heating cycle was started. After reaching an internal temperature of about 220°C, the reactor was pressurized to about 1600 bar with ethylene and maintained at 220°C for at least 30 minutes. The estimated amount of ethylene in the reactor was about 46.96 grams. A 3.0 mL mixture of 0.5648 mmol / ml propionaldehyde and 0.01116 mmol / ml tetrabutyl peroxyacetate initiator in n-heptane was then purged into the reactor using ethylene. The increase in pressure (to about 2000 bar) and th...
Embodiment 2
[0243] 2 grams of polymer 1 (LP1) was added to a 100 ml autoclave reactor. After closing the reactor, the stirrer was started at 1000 rpm. The reactor was deoxygenated by evacuating the system and pressurizing with nitrogen. Repeat 3 times. The reactor was then pressurized to 2000 bar with ethylene at ambient temperature and then vented. Repeat 3 times. The last time the reactor was vented with ethylene, the pressure only dropped to about 100 bar, at which point the reactor heating cycle was started. After reaching an internal temperature of about 220°C, the reactor was pressurized to about 1600 bar with ethylene and maintained at 220°C for at least 30 minutes. The estimated amount of ethylene in the reactor at this time was about 46.96 grams. A 3.0 mL mixture of 0.5648 mmol / ml propionaldehyde and 0.01116 mmol / ml tetrabutyl peroxyacetate initiator in n-heptane was then purged into the reactor using ethylene. The increase in pressure (to about 2000 bar) and the addition o...
Embodiment 3-5
[0263] This process was repeated for each example. For each example, 2 grams of the ethylene-based polymer resins prepared in the preparation of the ethylene-based polymers (ie, LP1-3) were charged into a 100 ml autoclave reactor. Example 3 includes LP2. Example 4 includes LP1. Example 5 includes LP3. The basic properties of these polymers can be found in Table 3. After closing the reactor, the stirrer was started at 1000 rpm. The reactor was deoxygenated by evacuating the system, heating the reactor to 70 °C for 1 hour, and then purging the system with nitrogen. Afterwards, the reactor was pressurized with nitrogen and the reactor was evacuated. This step was repeated 3 times. The reactor was pressurized to 2000 bar with ethylene, while maintaining ambient temperature, and vented. This step was repeated 3 times. Upon final ethylene venting, the pressure was only reduced to about 100 bar and reactor heating was started. When the internal temperature reached about 220°...
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Abstract
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