Ethleneimine polymer and method for producing same
AssigneeNippon Shokubai Co., Ltd.
InventorsSeiichi Suzuki, Taisuke Kasahara
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Abstract
Provided is an ethyleneimine polymer which exhibits excellent close adhesion properties and adhesive properties and is unlikely to form a gel-like film, and a method for producing the same. An ethyleneimine polymer, wherein a number average molecular weight (Mn) of the ethyleneimine polymer measured by gel permeation chromatography in terms of pullulan is 13,000 or more, a degree of dispersion of the ethyleneimine polymer is greater than 3.0 and 5.0 or less, and a water content in the ethyleneimine polymer is from 3 to 35% by weight.
Claims14
An ethyleneimine polymer, wherein
- a number average molecular weight (Mn) of the ethyleneimine polymer measured by gel permeation chromatography in terms of pullulan is 13,000 or more,
- a degree of dispersion of the ethyleneimine polymer is 3.1 or more to 4.0 or less, and a water content in the ethyleneimine polymer is from 3 to 10% by weight.
A method for producing an ethyleneimine polymer, the method comprising:
- polymerizing ethyleneimine under a temperature condition of higher than 90° C. and 150° C. or lower in the presence of water at from 1.0 to 40% by mass with respect to 100% by mass of the ethyleneimine and a catalyst at from 0.3 to 5% by mass with respect to 100% by mass of the ethyleneimine,
- wherein a number average molecular weight (Mn) of the ethyleneimine polymer measured by gel permeation chromatography in terms of pullulan is 13,000 or more,
- a degree of dispersion of the ethyleneimine polymer is 3.1 or more to 4.0 or less, and a water content in the ethyleneimine polymer is from 3 to 10% by weight.
Dependencies are inferred from the claim text.