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1. 发明授权

US07671193B2 Method for adjusting the degree of substitution with acetyl group of cellulose acetate 有权
标题翻译：用醋酸纤维素乙酰基调节取代度的方法
公开(公告)号：US07671193B2
公开(公告)日：2010-03-02
申请号：US10257645
申请日：2002-03-14
申请人： Tohru Shibata , Yuichiro Shuto , Masaaki Ito , Tanemi Asai
发明人： Tohru Shibata , Yuichiro Shuto , Masaaki Ito , Tanemi Asai
IPC分类号： C08B3/06 , C08B3/24 , C08B3/30 , C07H1/00
CPC分类号： C08B3/06 , C08B3/24
摘要： A process for adjusting an intermolecular or intermolecular degree of acetyl substitution of cellulose acetate is disclosed. The process comprises ripening cellulose acetate in the presence of a catalyst, an acetyl donor, and water or an alcohol. The amount of water and the alcohol is in the range of 0.1 to 10 mol % based on the amount of the acetyl donor.
摘要翻译：公开了一种调节乙酸纤维素的乙酰基取代的分子间或分子间分子的方法。该方法包括在催化剂，乙酰基供体和水或醇的存在下熟化乙酸纤维素。水和醇的量相对于乙酰基供体的量为0.1〜10摩尔％。

2. 发明授权

US2710845A Cellulose esters stabilized with a resinous polymeric epoxide and a metal salt 失效
标题翻译：用树脂聚合物环氧化物和金属盐稳定的纤维素酯
公开(公告)号：US2710845A
公开(公告)日：1955-06-14
申请号：US29581052
申请日：1952-06-26
申请人： HERCULES POWDER CO LTD
发明人： THOMPSON MORTIMER S
IPC分类号： C08B3/30 , C08L63/00
CPC分类号： C08B3/30 , C08L63/00 , C08L2666/26

3. 发明授权

US2454950A Stabilized cellulose acetate 失效
标题翻译：稳定的醋酸纤维素
公开(公告)号：US2454950A
公开(公告)日：1948-11-30
申请号：US68870646
申请日：1946-08-06
申请人： CELANESE CORP
发明人： JOHN SIMPSON WILLIAM , DONALD FINLAYSON
IPC分类号： C08B3/30
CPC分类号： C08B3/30

4. 发明授权

US2206872A Process of stabilizing carbohydrate derivatives 失效
标题翻译：稳定碳水化合物衍生物的方法
公开(公告)号：US2206872A
公开(公告)日：1940-07-09
申请号：US23190038
申请日：1938-09-27
申请人： NORTH AMERICAN RAYON CORP
发明人： BLEY RUDOLPH S
IPC分类号： C08B3/00 , C08B3/22 , C08B3/28 , C08B3/30 , C08B11/20 , C08B37/00
CPC分类号： C08B3/00 , C08B3/22 , C08B3/28 , C08B3/30 , C08B11/20 , C08B37/00

5. 发明授权

US07148344B2 Method for producing cellulose acetate film 有权
标题翻译：乙酸纤维素膜的制造方法
公开(公告)号：US07148344B2
公开(公告)日：2006-12-12
申请号：US11117567
申请日：2005-04-29
申请人： Yukiko Nakanishi , Hiroki Taniguchi , Katako Ueda
发明人： Yukiko Nakanishi , Hiroki Taniguchi , Katako Ueda
IPC分类号： C08B3/06 , C08B3/24 , C08B3/30
CPC分类号： C08J5/18 , C08B3/06 , C08J2301/12 , D01F2/28
摘要： Using the dope containing the following cellulose acetate (1), (2), or (3), a film is prepared by the casting process: (1) a cellulose acetate having carboxyl groups binding to at least one member selected from the group consisting of a cellulose acetate and a hemicellulose acetate, wherein at least a part of said carboxyl groups are in an acidic form; (2) a cellulose acetate containing at least one member selected from the group consisting of an acid having an acid dissociation exponent pKa of 1.93 to 4.50 in water, an alkali metal salt of said acid and an alkaline earth metal of said acid; or (3) a cellulose acetate containing an alkali metal or an alkaline earth metal wherein the total content of an alkaline metal and an alkaline earth metal in 1 gram of the cellulose acetate is from an effective amount to 5.5×10−6 equivalent (in terms of ion equivalent). The above cellulose acetate is also useful for spinning process. The cellulose acetate includes a cellulose diacetate and a cellulose triacetate. The cellulose acetate of the present invention has high film-releasability from a support and excellent optical characteristics.
摘要翻译：使用含有以下醋酸纤维素（1），（2）或（3）的涂料，通过流延法制备膜：（1）具有羧基的乙酸纤维素结合至少一种选自的乙酸纤维素和乙酸半纤维素，其中所述羧基的至少一部分为酸性形式; （2）含有至少一种选自水中酸解离指数pKa为1.93至4.50的酸的所述乙酸纤维素，所述酸的碱金属盐和所述酸的碱土金属; 或（3）含有碱金属或碱土金属的乙酸纤维素，其中1克乙酸纤维素中的碱金属和碱土金属的总含量为有效量为5.5×10 -6〜 / SUP>等效（以离子当量计）。上述醋酸纤维素也可用于纺丝过程。乙酸纤维素包括二乙酸纤维素和三醋酸纤维素。本发明的乙酸纤维素与支持体的剥离性高，光学特性优异。

6. 发明授权

US5587467A Separating agent for optical isomers and process for producing the same 失效
标题翻译：光学异构体分离剂及其制备方法
公开(公告)号：US5587467A
公开(公告)日：1996-12-24
申请号：US374530
申请日：1995-01-11
申请人： Tatsushi Murakami , Akito Ichida
发明人： Tatsushi Murakami , Akito Ichida
IPC分类号： B01J20/291 , B01J20/281 , B01J20/283 , B01J20/32 , C07B57/00 , C08B37/00 , G01N30/88 , C08B3/12 , B01J20/10 , C08B3/30 , C08B15/10 , C08B31/04
CPC分类号： C07B57/00 , B01J20/103 , B01J20/24 , B01J20/28004 , B01J20/28078 , B01J20/286 , B01J20/29 , B01J20/3092 , B01J20/3204 , B01J20/3219 , B01J20/3257 , B01J20/3259 , B01J20/3261 , B01J20/3274 , B01J20/3282 , B01J2220/54 , B01J2220/58
摘要： Polysaccharide derivative molecules are crosslinked exclusively among themselves on a support such as silica gel with the use of a polyfunctional crosslinking agent to immobilize the polysaccharide derivative on the support. The separating agent for optical isomers produced by the method has a high solvent resistance and, therefore, is most suitable as a separating agent for optical resolution.
摘要翻译： PCT No.PCT / JP94 / 00992 Sec。 371 1995年1月11日第 102（e）1995年1月11日，PCT PCT 1994年6月21日PCT公布。出版物WO95 / 00463 日期1995年1月5日多糖衍生物分子在载体如硅胶上独自交联，使用多官能交联剂将多糖衍生物固定在载体上。通过该方法制造的光学异构体分离剂具有高耐溶剂性，因此最适合作为光学拆分的分离剂。

7. 发明授权

US3631023A Continuous esterification of cellulose 失效
标题翻译：连续纤维素的确定
公开(公告)号：US3631023A
公开(公告)日：1971-12-28
申请号：US3631023D
申请日：1970-02-02
申请人： CELANESE CORP
发明人： HORNE CHARLES G JR , HOWELL CARL J JR
IPC分类号： C08B3/00 , C08B3/06 , C08B3/10 , C08B3/30
CPC分类号： C08B3/00 , C08B3/06
摘要： CONTINUOUSLY ESTERFIED CELLULOSE FLAKE HAVING A LOW STANDARD DERIVATION IN VISCOISTY, A LOW STANDARD DERIVATION IN ACETYL VALUE AND A LOW PERCENTAGE OF COMBINED SULFATES ARE PRODUCED BY A CONTINUOUS PROCESS COMPRISING THE FOLLOWING STEPS: (1) SLURRYING CELLULOSE IN A LOWER FATTY ACID/WATER SLURRY; (2) WASHING SAID SLURRY WITH LOWER FATTY ACID AND EXTRACTING WATER FROM THE CELLULOSE SLURRY; (3) ADDING AN EFFECTIVE AMOUNT OF AN ACID CATALYST; (4) MIXING THE PRETREATED CELLULOSE CONTAINING THE LOWER FATTY ACID AND CATALYST WITH A LOWER FATTY ACID/ LOWER FATTY ACID ANHYDRIDE MIXTURE CONTAINING EXCESS ANHYDRIDE AND ESTERIFYING THE CELLULOSE MIXTURE; (5) BLENDING THE ESTERIFIED DOPE WITH AN AQUEOUS SOLUTION OF NEUTRALIZING SALT; (6) DESULFATING THE PARTIALLY NEUTRALILZED ACETYLATED DOPE; AND (7) ADDING AN AQUEOUS NEUTRALIZING SAL T TO THE DESULFATED DOPE TO STOP ALL REACTIONS.

8. 发明授权

US2128340A Method of producing stable solutions of cellulose triacetate 失效
标题翻译：生产三醋酸纤维素稳定溶液的方法
公开(公告)号：US2128340A
公开(公告)日：1938-08-30
申请号：US16829237
申请日：1937-10-09
申请人： KARL WERNER
发明人： KARL WERNER
IPC分类号： C08B3/30
CPC分类号： C08B3/30

9. 发明授权

US1607474A Stabilized cellulose ester and process of preparing same 失效
标题翻译：稳定的纤维素酯及其制备方法
公开(公告)号：US1607474A
公开(公告)日：1926-11-16
申请号：US45184521
申请日：1921-03-12
申请人： LUSTRON COMPANY INC
发明人： MORK HARRY S
IPC分类号： C08B3/30
CPC分类号： C08B3/30

10. 发明授权

US3944518A Polyamides having improved dyeability and thermal stability 失效
标题翻译：具有改善的染色性和热稳定性的聚酰胺
公开(公告)号：US3944518A
公开(公告)日：1976-03-16
申请号：US557631
申请日：1966-06-15
申请人： Harold George Burrows , Stephen John Hepworth
发明人： Harold George Burrows , Stephen John Hepworth
IPC分类号： C08B3/30 , C08G69/02 , C08G69/04 , C08G69/14 , C08G69/16 , C08G69/26 , C08G69/28 , C08K5/5313 , C08K5/5317 , C08L77/00 , C08G6/00
CPC分类号： C08K5/5313 , C08B3/30 , C08G69/02 , C08G69/04 , C08G69/14 , C08G69/16 , C08G69/26 , C08G69/28 , C08K5/5317 , C08L77/00
摘要： A method for improving the polymerization of polyamide compositions and the improved compositions formed thereby by polymerizing the polyamide in the presence of a small molar percent of a phosphonic acid salt of an organic diamine. The phosphonic acid salt increases the polymerization rate and results in a polymer of improved whiteness.

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