Method for producing butene polymer
AssigneeEneos Corporation
InventorsTatsuo Yamaguchi, Koichi Sato, Tatsuya Chiba, Teruhisa Kuroki
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Abstract
Provided is a method for producing a butene polymer, comprising: a polymerization step of performing polymerization reaction by contacting a raw material component comprising 20% by mass or more of isobutene with a Lewis acid catalyst; and a distillation step of subjecting a solution to be treated containing a reaction product of the polymerization reaction and a butene oligomer added to the reaction product to distillation treatment to obtain the butene polymer, wherein an amount of the butene oligomer added is 25 parts by mass or larger with respect to 100 parts by mass of the reaction product.
Claims13
A method for producing a butene polymer, comprising:
- performing polymerization reaction by contacting a raw material component comprising 20% by mass or more of isobutene with a Lewis acid catalyst;
- adding a butene oligomer to the reaction solution of the polymerization reaction;
- water-washing the reaction solution supplemented with the butene oligomer to obtain the solution to be treated containing the reaction product and the butene oligomer;
- and
- subjecting the solution to be treated containing a reaction product of the polymerization reaction and a butene oligomer added to the reaction product to distillation treatment to obtain the butene polymer, wherein
- an amount of the butene oligomer added is 25 parts by mass or larger with respect to 100 parts by mass of the reaction product.
Dependencies are inferred from the claim text.