Fibrous material having good dimensional and heat stability

摘要

Fibrous material is provided comprising cellulose fibers and mineral wool fibers in a weight ratio within the range from about 3:7 to about 10:1, impregnated with an amount of a water-soluble polyoxyalkylene ether alcohol sufficient to impart dimensional stability thereto and having the formula: R1[-O-(Cn1H2n1-O)x-Cn2H2n2-OH]m wherein: R1 is hydrocarbon or hydrocarbon substituted with secondary hydroxyl groups and free from primary hydroxyl groups and having from one to about twenty-four carbon atoms; m is a number within the range from 1 to about 6; n1 is a number within the range from about 2 to about 4; n2 is a number within the range from 3 to 4; and -Cn2H2n2-OH is a branched chain propylene or butylene group having only secondary OH groups; and the total of x in all of the m groups (x multiplied by m) is a number within the range from about 2 to about 200; and optionally also impregnated with a plastic material.