NOVEL USES OF HEMICELLULOSE DERIVATIVES

摘要

Use of hemicellulose derivatives as adhesives, or adhesion promoting components, in hot melt or pressure-sensitive adhesives as well as novel adhesive compositions. The present derivatives are preferably ethers or esters of xylan or galactoglucomannan, such as hydroxyalkylated xylan or galactoglucomannan, having a degree of substitution of about 0.15 to 1.5. The molecular weight of the xylan extracted from bleached hardwood pulp or galactoglucomannan extracted from wood chips or meal is suitable as such, and simple derivatization for example by hydroxypropylation delivers a suitable adhesive component.