IMPROVED CELLULOSE ARTICLE CONTAINING ADDITIVE COMPOSITION

• Main Authors: RONALD WEVERS, THOMAS J DYER, TROY M RUNGE, DEBORAH J NICKEL, LIANG WENBIN, MICHAEL R LOSTOCCO, HENK FELIX, MONCLA BRAD M, JOHAN VAN RIJSBERGEN
• Format: Patent
• Language: English
• Published: 14.11.2013
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR; GENERAL PROCESSES OF COMPOUNDING; IMPREGNATING OR COATING OF PAPER; LAUNDERING; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PAPER NOT OTHERWISE PROVIDED FOR; PAPER-MAKING; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; PRODUCTION OF CELLULOSE; PULP COMPOSITIONS; TEXTILES; THEIR PREPARATION OR CHEMICAL WORKING-UP; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; TREATMENT OF TEXTILES OR THE LIKE; TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS,FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS; WORKING-UP

PROBLEM TO BE SOLVED: To provide a dispersion composition which can enhance the improvement of a specific functional characteristic, for example, strength while maintaining softness without adversely affecting other characteristics in a cellulose-based article, for example, paper and a board structure.SOLUTION: A cellulose article includes cellulose fibers incorporated with at least a partially dehydrated aqueous dispersion. The aqueous dispersion includes: the melt-kneading product of at least one polymer selected from the group consisting of an ethylene-based thermoplastic polymer, a propylene-based thermoplastic polymer, and mixtures thereof, and at least one polymeric stabilizing agent; water; and a neutralizing agent. The total amount of the at least one polymer and the at least one stabilizing agent constitutes 25 to 74 vol.% of the aqueous dispersion. The aqueous dispersion has a pH of 8 to 11 and a volume average particle diameter of 0.5 to 2.7 μm. The aqueous dispersion has a solid content of 20 to 60 wt.%. The cellulose article has a specific volume of less than 3 cc/gm.