公开(公告)号：WO2014059121A1

公开(公告)日：2014-04-17

申请号：PCT/US2013/064302

申请日：2013-10-10

Applicant: GEORGIA-PACIFIC CHEMICALS LLC

Inventor： JOHNSTON, James W. ,  TOWNSEND, David F. ,  HAGIOPOL, Cornel ,  TALBERT, Lakeisha D. ,  RUFFNER, Charles G.

IPC: D21H21/14 ,  D21H17/44 ,  D21H17/63 ,  D21H17/56

CPC classification number: D21H17/74 ,  D21H17/11 ,  D21H17/63 ,  D21H21/16 ,  D21H27/00

Abstract: Methods for making and using aqueous dispersions for imparting grease/oil resistance to paper, paperboard and cellulose fiber products generally are provided. In particular, there are provided aqueous colloidal dispersions comprising nanoparticles of at least one colloidal clay and an aqueous fluorochemical, which can be applied to, on, or in paper, paperboard and cellulose fiber products. The paper and products that have been modified using these aqueous dispersions have good resistance to oil and grease penetration with lower overall amounts of aqueous fluorochemicals being required. Additional methods for imparting grease/oil resistance to paper, paperboard and cellulose fiber products generally are provided. In particular, there is provided a process for improving the oil and grease resistance of a cellulose fiber material, the process comprising: a) applying a pretreatment composition comprising a cationic polymer to a cellulose fiber material in a size press to form a pretreated cellulose substrate; b) drying the pretreated cellulose substrate; and c) applying a fluorochemical composition to the dry pretreated cellulose substrate to form an oil-repellent cellulose fiber material.

Abstract translation: 通常提供制造和使用水性分散体以赋予纸，纸板和纤维素纤维产品润滑脂/耐油性的方法。 特别地，提供了包含至少一种胶体粘土和含氟含氟化合物的纳米颗粒的水性胶体分散体，其可以应用于纸张和纤维素纤维产品的纸上或纸上。 使用这些水性分散体改性的纸和产品具有良好的耐油和润滑脂渗透性，需要较低总含量的含氟化合物。 通常提供了赋予纸，纸板和纤维素纤维产品润滑脂/耐油性的其它方法。 特别地，提供了一种改善纤维素纤维材料的耐油脂和耐油脂性的方法，该方法包括：a）在压片机中将包含阳离子聚合物的预处理组合物施加到纤维素纤维材料上以形成预处理的纤维素基材 ; b）干燥预处理的纤维素基质; 和c）将含氟化合物组合物施加到干预处理的纤维素基质上以形成拒油纤维素纤维材料。

公开(公告)号：WO2014059118A1

公开(公告)日：2014-04-17

申请号：PCT/US2013/064296

申请日：2013-10-10

Applicant: GEORGIA-PACIFIC CHEMICALS LLC

Inventor： JOHNSTON, James W. ,  TOWNSEND, David F. ,  HAGIOPOL, Cornel ,  TALBERT, Lakeisha D. ,  RUFFNER, Charles G.

IPC: D21H21/14 ,  D21H21/16 ,  D21H17/33

CPC classification number: D21H19/12 ,  D21H19/20 ,  D21H21/16 ,  D21H27/00 ,  Y10T428/277 ,  Y10T428/31971 ,  Y10T428/31993

Abstract: This disclosure provides for a process for making an oil and grease resistant cellulosic material such as paper and paperboard, the process comprising applying a homogeneous aqueous dispersion of fluorochemical surface-modified nanoparticles to a cellulosic substrate to form a treated cellulosic substrate, and subsequently drying the treated cellulosic substrate to form an oil repellent cellulosic material. Fluorochemicals that can be used to modify the nanoparticles include fluoroalkylsilanes, ionic fluorochemicals, or fluorinated polyacrylate obtained by seeded emulsion polymerization of fluorinated acrylates on the nanoparticles. Paper, paperboard and cellulose fiber articles that have been modified by the disclosed processes have improved oil and grease resistance properties.

Abstract translation: 该公开内容提供了一种用于制造耐油和耐油脂的纤维素材料如纸和纸板的方法，该方法包括将含氟化学表面改性纳米颗粒的均匀水分散体施加到纤维素基材上以形成经处理的纤维素基材，随后将 处理的纤维素基材以形成拒油纤维素材料。 可用于改性纳米粒子的含氟化合物包括氟代烷基硅烷，离子含氟化合物或氟化聚丙烯酸酯，其通过氟化丙烯酸酯在纳米颗粒上的接种乳液聚合获得。 已经通过公开的方法改性的纸，纸板和纤维素纤维制品具有改善的耐油和耐油脂性能。