Examples of 'first polymerization' in a sentence
Meaning of "first polymerization"
first polymerization - The initial process in which monomers are chemically bonded together to form a polymer. This phrase is frequently used in chemistry and polymer science to describe the early stage of polymer formation
How to use "first polymerization" in a sentence
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first polymerization
The first polymerization reactor is then isolated.
This stage is called the first polymerization step.
A first polymerization step comprising.
The cocatalyst is introduced into the first polymerization reactor.
Only the first polymerization causes a shrinkage of the material.
The catalyst system is added to the first polymerization stage.
The first polymerization zone is typically a continuous stirred tank reactor.
All of the soap is charged into the first polymerization zone.
The polymerization in the first polymerization zone is conducted in slurry in a loop reactor.
Preferably this is achieved by not using solvents in the first polymerization step.
In a preferred embodiment the first polymerization stage is preceded by a prepolymerization stage.
At least two other ethylenically unsaturated monomers are included in the first polymerization.
The separation of a portion from the first polymerization step is known as such.
The first polymerization zone will normally be a reactor or series of two or more reactors.
This temperature is maintained during the first polymerization stage of the styrene.
See also
The first polymerization zone can thus be advantageously cooled with external cooling means.
It is preferred to withdraw the slurry from the first polymerization stage continuously.
First polymerization stage In a first polymerization stage a first copolymer of propylene is produced.
The reaction product of the first polymerization reactor was transferred to a second reactor.
The subsequent polymerization can be the same as or different than the first polymerization.
The first copolymer produced in the first polymerization stage is semicrystalline and not amorphous.
It is important that there be essentially no hydrogen present during the first polymerization step.
All of the soap is charged into the first polymerization zone in practicing this invention.
The first polymerization cycle is comprised of,.
It is often convenient to carry out the first polymerization stage in two steps.
Preferably, the first polymerization is carried out in solution in an organic solvent.
The flows comprising the polymer particles are recycled into the first polymerization reactor.
Slurry The polymerization in the first polymerization zone may be conducted in slurry.
Alternatively, the catalysts may be prepolymerized before being added to first polymerization reactor.
Carrying out a first polymerization cycle ;.
A second polymerization reactor disposed downstream of the first polymerization reactor ;.
Thus, as discussed, a first polymerization reactor may discharge to a second polymerization reactor.
Providing a diluent and a first monomer to a first polymerization reactor ;.
A first polymerization enclosure for polymerizing said first material to obtain a primary coating ;.
Continuously withdrawing the first polymerization product from the grafting reactor ;.
In any case, the second polymerization zone is subsequent to the first polymerization zone.
The loop reactor of the first polymerization step has been marked by reference number 10.
The process of claim 1, wherein the second polymerization comprises the first polymerization product.
First, in a first polymerization step, propylene and a catalyst are supplied to a first polymerization reactor.
As a result of this, the polymer particles formed in the first polymerization stage are undissolved.
In the first polymerization reactor, a polypropylene homopolymer was produced using a Zeigler-Natta type catalyst.
Suitably, the slurry polymerization is the first polymerization step, followed by a gas phase polymerization.
The process of claim 1, wherein the second polymerization comprises the first polymerization catalyst.
In a dual tandem reactor system, the first polymerization reactor preferably operates at lower temperature.
An apparatus for producing a polyolefin, comprising, a first polymerization reactor ;.
Next, the first polymerization reaction product is introduced into the second polymerization reaction step.
For the polymerization, a polymerizer provided with a first polymerization vessel and a second polymerization vessel is used.
In the first polymerization process for manufacturing an olefin, the compound NiAQ ( I ) may be used.
A system for producing a polyolefin, comprising, a first polymerization reactor ;.
Feeding the first polymerization mixture from the CSTR to a first linear flow reactor ;.
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