ALKENYLSUCCINIC ANHYDRIDE COMPOSITIONS AND METHOD FOR USING THE SAME

摘要

The invention relates to an aqueous sizing composition including (a) an emulsion comprising alkenylsuccinic anhydride component containing alkenylsuccinic anhydride particles suspended in an aqueous polymer, and (b) a second component selected from the group consisting of cationic starches, no n- ionic starches, anionic starches, water-soluble polymer, water and mixtures thereof, such that the alkenylsuccinic anhydride component is sufficiently dilute to enable the sizing composition to impart useful sizing properties t o a fibrous substrate when the sizing composition contacts the fibrous substrate. The invention also relates to fibrous substrates treated with suc h a composition as well as processes for making and using the composition. In one embodiment, alkylene ketene dimer can be used instead of alkenylsuccinic anhydride.