公开(公告)号：WO1998013545A1

公开(公告)日：1998-04-02

申请号：PCT/US1997017785

申请日：1997-09-23

Applicant: AMOCO CORPORATION

Inventor： AMOCO CORPORATION ,  ANDERSON, Ronald, L. ,  CATTRON, Wendell, W. ,  SMITH, Vincent, F., Jr. ,  FENOGLIO, David, J.

IPC: D06M13/184

CPC classification number: C08H8/00 ,  C08B15/10 ,  D06M13/17 ,  D06M13/1845 ,  D06M13/224 ,  D06M15/53 ,  D06M2101/06 ,  D21C9/005

Abstract: A process for preparation of cross-linked cellulosic containing at least 30 wt.% cellulosic fibers and the polyanhydride cross-linked cellulosic products resulting therefrom wherein a cellulosic material is treated with an aqueous solution of a polycarboxylic acid formed by hydrolysis of a polyanhydride of structure (I), which comprises the reaction product of trimellitic anhydride and a diol in the mole ratio of from about 2.0:0.9 to about 2.0:1.1, wherein R is selected from the group consisting of alkyl, alkylene and cycloalkylene moieties of up to 12 carbon atoms and ethylene oxide and propylene oxide moieties of molecular weight up to about 6000, wherein said cellulosic material is impregnated with an aqueous solution of said polyanhydride, dried, and heated to a temperature of from about 120 DEG C to about 200 DEG C at ambient pressure to obtain cross-linking of the cellulose fibers with the said polyanhydride by an ester bond between the hydroxyl groups of the cellulosic fibers and the anhydride groups of the anhydride. Fibrous cellulosic products are readily repulped paper with improved wet strength, pulp fluff with improved wet resilience, wood oriented strand board with improved moisture resistance, and textile products with improved durable press and reduced shrink characteristics.

Abstract translation: 一种制备含有至少30重量％纤维素纤维的交联纤维素的方法和由此产生的聚酐交联的纤维素产品，其中纤维素材料用结构的聚酐水解形成的多元羧酸的水溶液处理 （I），其包含摩尔比为约2.0:0.9至约2.0:1.1的偏苯三酸酐和二醇的反应产物，其中R选自至多12个的烷基，亚烷基和亚环烷基部分 碳原子和分子量高达约6000的环氧乙烷和环氧丙烷部分，其中所述纤维素材料用所述聚酐的水溶液浸渍，干燥并加热至约120℃至约200℃的温度 环境压力以通过纤维素纤维a的羟基之间的酯键与纤维素纤维与所述聚酐的交联 和酸酐的酸酐基团。 纤维素纤维素产品易于改良湿强度的纸浆，具有改善的湿回弹性的纸浆绒毛，具有改善的耐湿性的木质定向刨花板以及具有改进的耐久压制和降低的收缩特性的纺织产品。

公开(公告)号：EP0928348A1

公开(公告)日：1999-07-14

申请号：EP97945449.0

申请日：1997-09-23

Applicant: BP Amoco Corporation

Inventor： ANDERSON, Ronald, L. ,  CATTRON, Wendell, W. ,  SMITH, Vincent, F., Jr. ,  FENOGLIO, David, J.

IPC: C08B15 ,  C08H5 ,  D06M13 ,  D06M15 ,  D21C9

CPC classification number: C08H8/00 ,  C08B15/10 ,  D06M13/17 ,  D06M13/1845 ,  D06M13/224 ,  D06M15/53 ,  D06M2101/06 ,  D21C9/005

Abstract: A process for preparation of cross-linked cellulosic containing at least 30 wt.% cellulosic fibers and the polyanhydride cross-linked cellulosic products resulting therefrom wherein a cellulosic material is treated with an aqueous solution of a polycarboxylic acid formed by hydrolysis of a polyanhydride of structure (I), which comprises the reaction product of trimellitic anhydride and a diol in the mole ratio of from about 2.0:0.9 to about 2.0:1.1, wherein R is selected from the group consisting of alkyl, alkylene and cycloalkylene moieties of up to 12 carbon atoms and ethylene oxide and propylene oxide moieties of molecular weight up to about 6000, wherein said cellulosic material is impregnated with an aqueous solution of said polyanhydride, dried, and heated to a temperature of from about 120 °C to about 200 °C at ambient pressure to obtain cross-linking of the cellulose fibers with the said polyanhydride by an ester bond between the hydroxyl groups of the cellulosic fibers and the anhydride groups of the anhydride. Fibrous cellulosic products are readily repulped paper with improved wet strength, pulp fluff with improved wet resilience, wood oriented strand board with improved moisture resistance, and textile products with improved durable press and reduced shrink characteristics.