Examples of 'atactic polypropylene' in a sentence
Meaning of "atactic polypropylene"
Atactic polypropylene is a type of polymer material that lacks a regular structure, leading to random arrangement of its molecular chains
How to use "atactic polypropylene" in a sentence
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atactic polypropylene
Suppliers of atactic polypropylene hot melt types.
The polypropylene can be isotactic polypropylene or a mixture of isotactic and syndiotactic or atactic polypropylene.
Improving elastomeric properties of atactic polypropylene by copolymerization.
Atactic polypropylene is the preferred polyolefin.
As an example of another suitable polymer for this purpose atactic polypropylene can be mentioned.
Atactic polypropylene homopolymer is especially suitable as the polypropylene.
The polymer data support the identification of this material as being predominantly atactic polypropylene.
The manufacture of syndiotactic polypropylene and atactic polypropylene is also well known in the art.
The nature of the atactic polypropylene and the polyisobutene and their ratio is not disclosed.
The results show that the mixture of isomers produces a mixture of isotactic and atactic polypropylene.
Unlike isotactic polypropylene, atactic polypropylene is amorphous.
Those skilled in the polypropylene art recognize only limited end uses for atactic polypropylene.
The backbone is composed of atactic polypropylene and, optionally, one or more comonomers.
These catalysts can substantially eliminate the need for catalyst residue and atactic polypropylene removal steps.
Consequently, amorphous atactic polypropylene can be used as a model matrix for forming fibrils.
See also
Preferably, the backbone is atactic polypropylene.
Example 1 produces atactic polypropylene but the molecular weight using a zirconium metallocene compound is not stated.
The polypropylene homopolymer can be isotactic, syndiotactic or atactic polypropylene.
Atactic polypropylene ( APP ) is particularly preferred because it blends well with the asphalt.
In a further embodiment, the plasticizer is polyalpha olefin including atactic polypropylene.
A blend was produced by combining atactic polypropylene and the isotactic polypropylene macromer produced in Example 1.
In a preferred embodiment, the asphalt is modified with polypropylene, such as atactic polypropylene.
The plastic polymer is preferably atactic polypropylene ( APP ) in combination with the other described above.
The composition of claim 5 wherein said atactic poly-alphaolefin is atactic polypropylene.
Atactic polypropylene ( APP ) has the methyl groups attached randomly with respect to the polymer chain.
The polypropylene employed is the so-called isotactic polypropylene as opposed to atactic polypropylene.
Component P. 3 is very low molecular weight atactic polypropylene equivalent to a plasticizer oil.
The adhesive of claim 1 wherein the metallocene catalyzed polypropylene polymer is an atactic polypropylene.
Atactic polypropylene is defined to be less than 10 % isotactic or syndiotactic pentads.
The best results are obtained by using hot melt types, based upon atactic polypropylene.
APP, stands for Atactic PolyPropylene.
For example, crystallization occurs much easier in isotactic than in the atactic polypropylene form.
About 0.15 kg of atactic polypropylene is then added to the asphalt in the container.
The distillation vessel separates the liquid propylene from polymerization by-products, such as atactic polypropylene.
Two types of modifiers are commonly used, atactic polypropylene ( APP ) and styrene-butadiene-styrene SBS.
The racemic form generates isotactic polypropylene, while the meso form produces atactic polypropylene.
Samples D-F and I-O are believed to be atactic polypropylene by-products.
A carpet tile according to claim 1 wherein the hot melt composition comprises bitumen or atactic polypropylene.
Comparative Examples 11-13 show crosslinked atactic polypropylene compositions.
The laminating adhesive had previously been asphalt but now is more commonly a hot-melt atactic polypropylene.
The black diamond symbol ( ♦ ) represents pure atactic polypropylene.
A second compound must be capable of producing a high molecular weight amorphous poly-a-olefin, preferably atactic polypropylene.
A device according to claim 5, wherein the polyolefin is atactic polypropylene.
Preferably, at least 90 mole percent of the backbone is atactic polypropylene.
The method of claim 10, wherein said modifier is atactic polypropylene.
Most preferably, 100 mole percent of the backbone is atactic polypropylene.
Process according to Claim 1, wherein the initial homogeneous blend comprises from 5 to 50 % of atactic polypropylene.
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Examples of using Atactic
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Suppliers of atactic polypropylene hot melt types
The polymer used can be isotactic or atactic
Atactic polymers are technologically very important
Examples of using Polypropylene
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Tubes and pipettes of polypropylene or polyethylene are acceptable
Polypropylene bottle with butyl elastomere closure
Belts are made of plastic polypropylene or polyethylene
