公开(公告)号：US06547999B1

公开(公告)日：2003-04-15

申请号：US09419933

申请日：1999-10-18

申请人： Paul Edmund Ducharme, Jr. ,  Myron Donald Nicholson ,  Norman Abbye Portnoy

发明人： Paul Edmund Ducharme, Jr. ,  Myron Donald Nicholson ,  Norman Abbye Portnoy

IPC分类号： C08L102

CPC分类号： A22C13/0013 ,  Y10T428/1324

摘要： The present invention provides a method of preparing a cellulose solution suitable for extrusion as a seamless tubular film by providing a pulp of substantially open-ended fibrillated softwood fibers having a mean fiber length less than 2.0 mm and then dissolving the pulp in a suitable solvent to produce the cellulose solution. In addition, the present invention provides a method of preparing a cellulose food casing from a cellulose solution of the present invention.

摘要翻译： 本发明提供了一种通过提供平均纤维长度小于2.0mm的基本开放的原纤化软木纤维的纸浆，然后将纸浆溶解在合适的溶剂中制备适合作为无缝管状膜挤出的纤维素溶液的方法， 生产纤维素溶液。 此外，本发明提供从本发明的纤维素溶液制备纤维素食品外壳的方法。

公开(公告)号：US5658524A

公开(公告)日：1997-08-19

申请号：US434709

申请日：1995-05-04

申请人： Norman Abbye Portnoy ,  Edward Makoto Kajiwara ,  Paul Edmund Ducharme, Jr.

发明人： Norman Abbye Portnoy ,  Edward Makoto Kajiwara ,  Paul Edmund Ducharme, Jr.

IPC分类号： A22C13/00 ,  B29C47/00 ,  B29C47/88

CPC分类号： B29C47/8895 ,  A22C13/0013 ,  B29C47/0021 ,  B29C47/0026 ,  A22C2013/002 ,  A22C2013/0073 ,  A22C2013/0096

摘要： In a method for forming a cellulose tube suitable for use as a food casing or as cellophane film, in which a solution of nonderivatized cellulose, tertiary amine N-oxide and water is extruded through an air gap of at least five inches, and into a water bath, such that a wet cellulose tube is formed. The wet tube is inflated from about 55% to 140% or more and dried thereby substantially retaining its work-to-rupture characteristics, especially when compared to viscose-derived tubes.

摘要翻译： 在适合用作食品外壳或玻璃纸膜的纤维素管的形成方法中，其中非稀释纤维素，叔胺N-氧化物和水的溶液通过至少五英寸的气隙挤出， 水浴，形成湿纤维素管。 湿管膨胀为约55％至140％或更高，并干燥，从而基本上保持其工作破裂特性，特别是与粘胶衍生管相比。

公开(公告)号：US6096258A

公开(公告)日：2000-08-01

申请号：US9505

申请日：1998-01-20

申请人： Paul Edmund DuCharme, Jr. ,  Edward Makoto Kajiwara ,  Norman Abbye Portnoy

发明人： Paul Edmund DuCharme, Jr. ,  Edward Makoto Kajiwara ,  Norman Abbye Portnoy

IPC分类号： C08J5/18 ,  A22C13/00 ,  B29C67/06 ,  B29K1/00 ,  B29L7/00 ,  C08J11/02 ,  B29C47/00

CPC分类号： A22C13/0013 ,  A22C2013/002 ,  A22C2013/0059 ,  A22C2013/0096

摘要： A method and apparatus is disclosed for forming a cellulose film suitable for direct food contact by precipitation from a solution of cellulose water and a tertiary amine oxide cellulose solvent. After precipitation of a cellulose gel from the solution, the gel is washed at ever increasing temperatures and then dried to provide a cellulose film having a solvent level to not more than 40 ppm. Portions of the wash water is collected and treated to recover the solvent for reuse.

摘要翻译： 公开了一种用于形成适于通过从纤维素水和叔胺氧化物纤维素溶剂的溶液中沉淀而直接食物接触的纤维素膜的方法和装置。 从溶液中沉淀纤维素凝胶后，将凝胶在不断升高的温度下洗涤，然后干燥，得到溶剂含量至不超过40ppm的纤维素膜。 洗涤水的部分被收集和处理以回收溶剂以便重新使用。

公开(公告)号：US5658525A

公开(公告)日：1997-08-19

申请号：US511267

申请日：1995-08-04

申请人： Edward Makoto Kajiwara ,  Norman Abbye Portnoy ,  Paul Edmund Ducharme, Jr.

发明人： Edward Makoto Kajiwara ,  Norman Abbye Portnoy ,  Paul Edmund Ducharme, Jr.

IPC分类号： C08J5/18 ,  B29C47/88

CPC分类号： C08J5/18 ,  C08J2301/02

摘要： In a method for forming a cellulose tube suitable for use as a food casing, in which a solution of nonderivatized cellulose, tertiary amine N-oxide and water is extruded through a die gap and the extruded tube is downwardly drawn through an air gap while being internally cooled and then is passed into a water bath, the tube transverse direction tensile strength being increased by drawing the extruded tube through an air length of at least about five inches and exposing the exterior surface of the extruded tube to cooling air in the air gap.

摘要翻译： 在适合用作食品外壳的纤维素管的形成方法中，其中非稀释纤维素，叔胺N-氧化物和水的溶液通过模头间隙挤出，并且挤出的管沿着空气间隙向下拉，同时 内部冷却，然后通入水浴，通过将挤出管拉伸至少约5英寸的空气长度并使挤出管的外表面暴露于空气间隙中的冷却空气而使管横向拉伸强度增加 。