A method of preparing construction material systems is described. The process includes extruding a composition of construction materials and an irreversibly crosslinked cellulose derivative that is prepared by a particular process.

 
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< Top sheet for absorbent articles, and method for producing it

< Structure formed of foaming cement and lightweight steel and a structural system and method of forming the structural system

> Permeable cement composition and method for preparing the same

> Foamed compositions and methods of use in subterranean zones

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