Polyisobutylene composition having internal vinylidene and process for preparing the polyisobutylene polymer composition
A technology of polyisobutylene and polymerization method, which is applied in the field of polyisobutylene preparation, can solve the problems of low conversion rate, low space velocity, low reaction temperature, etc., and achieve the effect of cost reduction and annual saving
Inactive Publication Date: 2015-02-04
PETROCHEM SUPPLY
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
However, its conversion is low, its space velocity is low and its reaction temperature is low
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment I
[0094] α vinylidene = 50.3% by weight
[0095] β vinylidene = 12.93% by weight
[0096] Internal vinylidene = 21.9% by weight
[0097] Others = 14.9% by weight
Embodiment II
[0099] Alpha vinylidene = 43.2% by weight
[0100] β vinylidene = 16.5% by weight
[0101] Internal vinylidene = 24.2% by weight
[0102] Others = 16.1% by weight
Embodiment III
[0104] α vinylidene = 73.0% by weight
[0105] β vinylidene = 13.6% by weight
[0106] Internal vinylidene = 10.7% by weight
[0107] Others = 2.7% by weight
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Abstract
A polyisobutylene composition has polyisobutylene molecules with a first portion having a alpha vinylidene molecules, a second portion having beta vinylidene molecules, and a third portion having internal vinylidene molecules. The first portion has less than 75% of the polyisobutylene molecules of the composition. A total of the first portion and the second portion is less than 90% of the polyisobutylene molecules of the composition. The third portion is more than 3% of the polyisobutylene molecules of the composition. A process for forming this polyisobutylene polymer composition passes an isobutylene through a fixed bed reactor having a boron trifluoride / alcohol complex therein so as to produce the polyisobutylene composition.
Description
field of invention [0001] The present invention relates to the preparation of polyisobutene. The invention also relates to catalysts for conversion reactions of organic compounds. More particularly, the present invention relates to plasticizer compositions having internal vinylidene molecules. Background of the invention [0002] Polyisobutylene is a commercially important polymer that finds various applications in exploiting its thermal stability, good flexibility at ambient temperature and impermeability to gases. Polyisobutylene has many properties that set it apart from most other polymers. First, polyisobutylene has a first and foremost low permeability to small molecule penetrants. Second, polyisobutylene has one of the weakest temperature dependencies of structural relaxation and viscosity (i.e. low brittleness), and correspondingly, it still has strong inelastic scattering even at temperatures well above the glass transition Sex (bosons). Polyisobutylene has ver...
Claims
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IPC IPC(8): C08F10/10C08F2/00C08L23/22
CPCC08F110/10C08F4/14C08F2/00C08F2/14
Inventor C·小爱德华·巴克斯特
Owner PETROCHEM SUPPLY