专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2852494B2 失效
公开(公告)号：JP2852494B2
公开(公告)日：1999-02-03
申请号：JP24464794
申请日：1994-09-13
申请人： FUJI BOSEKI KK
发明人： KURAHASHI ITSUO , YABE HIROAKI , SUMI EIJI , OKUDA ISAMU , MATSUZAWA HIRONOBU
IPC分类号： D06M15/564 , D06M13/02 , D06M13/11 , D06M13/165 , D06M13/17 , D06M13/51 , D06M13/513 , D06M101/00 , D06M101/02 , D06M101/06 , D06M101/08

2. 发明专利

JP2863894B2 失效
公开(公告)号：JP2863894B2
公开(公告)日：1999-03-03
申请号：JP33117394
申请日：1994-12-08
申请人： FUJI BOSEKI KK
发明人： KURAHASHI ITSUO , YABE HIROAKI
IPC分类号： D06M15/41 , D06M13/02 , D06M13/244 , D06M13/248 , D06M13/268 , D06M101/00 , D06M101/02 , D06M101/06 , D06M101/08

3. 发明专利

JP2863893B2 失效
公开(公告)号：JP2863893B2
公开(公告)日：1999-03-03
申请号：JP32351194
申请日：1994-12-01
申请人： FUJI BOSEKI KK
发明人： KURAHASHI ITSUO , YABE HIROAKI , OKABAYASHI KENICHI , OKUDA ISAMU
IPC分类号： D06M13/02 , D06M13/11 , D06M13/165 , D06M13/17 , D06M101/00 , D06M101/02 , D06M101/06 , D06M101/08

4. 发明专利

JPS6140337A Production of granular porous chitosan 失效
标题翻译：颗粒多孔梭菌的生产
公开(公告)号：JPS6140337A
公开(公告)日：1986-02-26
申请号：JP16119284
申请日：1984-07-31
申请人： Fuji Boseki Kk
发明人： KAWAMURA YOSHIHIDE , YABE HIROAKI , KURAHASHI ITSUO , SEO HIROSHI , NAKAJIMA SABURO
IPC分类号： B01J20/281 , B01J20/22 , C08J9/28 , G01N30/88
摘要： PURPOSE: To obtain porous granular chitosan having uniform particle size, and uniform fine pores on the surface of the sphere or the broken surface, and suitable as a stationary phase of chromatography, by preparing a concentrated chitosan solution from a chitosan having low molecular weight, and dripping the solution into a basic solution to effect the coagulation of the chitosan solution.
CONSTITUTION: A low-molecular weight chitosan having an average molecular weight of 10,000W230,000 is dissolved in an acidic aqueous solution (e.g. aqueous solution of acetic acid, dichloroacetic acid, etc.) to a concentration of 2W20wt%, and the solution is dripped into a basic solution composed of a basic substance (e.g. NaOH, ammonia, etc.) and water and/or an alcohol (e.g. methanol, ethanol, etc.). The obtained spherical coagulum is washed with water and dried to obtain the objective product.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：通过从低分子量的壳聚糖制备浓缩的壳聚糖溶液，获得粒径均匀，球面或破碎表面均匀细孔的多孔粒状壳聚糖，适合作为固相色谱法，并将溶液滴入碱性溶液中以实现壳聚糖溶液的凝结。构成：将平均分子量为10,000-230,000的低分子量壳聚糖溶解在酸性水溶液（例如乙酸，二氯乙酸等的水溶液）中，浓度为2-20重量％，溶液滴入由碱性物质（例如NaOH，氨等）和水和/或醇（如甲醇，乙醇等）组成的碱性溶液中。将得到的球状凝结物用水洗涤并干燥，得到目标产物。

5. 发明专利

JPS6140303A Production of low-molecular-weight chitosan 失效
标题翻译：低分子量CHITOSAN的生产
公开(公告)号：JPS6140303A
公开(公告)日：1986-02-26
申请号：JP16119184
申请日：1984-07-31
申请人： Fuji Boseki Kk
发明人： KURAHASHI ITSUO , YABE HIROAKI , KAWAMURA YOSHIHIDE , SEO HIROSHI
IPC分类号： C08B37/08
摘要： PURPOSE: To obtain a low-molecular-weight chitosan useful as fibers, a filler for chromatography, a carrier for immobilized enzyme, etc., easily and stably without causing reduction in content of amino group, by heat-treating chitosan in an aqueous solution of sodium perborate.
CONSTITUTION: A high-molecular-weight chitosan obtained from chitin existing in the natural world is heat-treated with an aqueous solution of sodium perborate having preferably 0.07W17g/l concentration usually at 25W50°C, to give a low- molecular-weight chitosan.
EFFECT: Only glucoside bond can be selectively scissored without influencing amino group of high-molecular-weight chitosan, and a chitosan having any molecular weight can be obtained only by determining concentration, treating time and temperature of the aqueous solution of sodium perborate as treatment conditions.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：通过在水溶液中热处理壳聚糖，可以容易且稳定地获得用作纤维的低分子量壳聚糖，用于色谱的填料，固定化酶等的载体，而不会导致氨基含量的降低的过硼酸钠。构成：由天然世界中存在的几丁质获得的高分子量壳聚糖用通常在25-50℃下优选0.07-17g / l浓度的过硼酸钠水溶液进行热处理，得到低分子量壳聚糖，分子量壳聚糖。效果：只有葡糖苷键可以选择性地剪切而不影响高分子量壳聚糖的氨基，只有通过测定浓度，处理过硼酸钠水溶液的时间和温度作为处理条件，才能获得任何分子量的壳聚糖。

6. 发明专利

JP2852491B2 失效
公开(公告)号：JP2852491B2
公开(公告)日：1999-02-03
申请号：JP21786794
申请日：1994-08-19
申请人： FUJI BOSEKI KK
发明人： KURAHASHI ITSUO , YABE HIROAKI , SUMI EIJI , OKUDA ISAMU , MATSUZAWA HIRONOBU
IPC分类号： D06M15/564 , D06M13/02 , D06M13/244 , D06M13/248 , D06M13/268 , D06M13/51 , D06M13/513 , D06M15/643 , D06M101/00 , D06M101/02 , D06M101/06 , D06M101/08

7. 发明专利

JP2852495B2 失效
公开(公告)号：JP2852495B2
公开(公告)日：1999-02-03
申请号：JP25458794
申请日：1994-09-22
申请人： FUJI BOSEKI KK
发明人： KURAHASHI ITSUO , YABE HIROAKI , SUMI EIJI , OKUDA ISAMU , MATSUZAWA HIRONOBU
IPC分类号： D06M15/643 , D06M13/02 , D06M13/11 , D06M13/165 , D06M101/00 , D06M101/02 , D06M101/06 , D06M101/08

8. 发明专利

JP2852493B2 失效
公开(公告)号：JP2852493B2
公开(公告)日：1999-02-03
申请号：JP23596494
申请日：1994-09-05
申请人： FUJI BOSEKI KK
发明人： KURAHASHI ITSUO , YABE HIROAKI , SUMI EIJI , YOSHIKAWA KINGO , OKABAYASHI KENICHI
IPC分类号： D06M15/564 , D06M13/02 , D06M13/244 , D06M13/248 , D06M13/268 , D06M101/00 , D06M101/02 , D06M101/06 , D06M101/08

9. 发明专利

JP2852492B2 失效
公开(公告)号：JP2852492B2
公开(公告)日：1999-02-03
申请号：JP23066194
申请日：1994-08-31
申请人： FUJI BOSEKI KK
发明人： KURAHASHI ITSUO , YABE HIROAKI , SUMI EIJI , YOSHIKAWA KINGO
IPC分类号： D06M15/564 , D06M13/02 , D06M13/244 , D06M13/248 , D06M13/268 , D06M101/00 , D06M101/02 , D06M101/06 , D06M101/08

10. 发明专利

JPS6176504A Production of porous granular chitosan 失效
标题翻译：多孔颗粒生产
公开(公告)号：JPS6176504A
公开(公告)日：1986-04-19
申请号：JP19807784
申请日：1984-09-21
申请人： Fuji Boseki Kk
发明人： YABE HIROAKI , KURAHASHI ITSUO , KAWAMURA YOSHIHIDE
IPC分类号： C12N11/02 , C07K17/10 , C08B37/08
摘要： PURPOSE: To obtain a chitosan suitable as a carrier of immobilized biocatalyst, etc., by dissolving a chitosan having low molecular weight in an acidic aqueous solution, adding the solution dropwise to a basic solution to obtain a granular porous chitosan, and crosslinking the chitosan with an organic diisocyanate compound.
CONSTITUTION: A low molecular weight chitosan having a molecular weight of preferably 10,000W230,000 is dissolved in an acidic aqueous solution, and the obtained solution is added to a basic solution of e.g. NaOH, CaCO
3 , etc. through a nozzle of 0.1W0.25m/m diameter to obtain a granular porous chitosan, which is crosslinked by contacting with an organic diisocyanate compound (e.g. 4,4'-diphenylmethane diisocyanate) in a polar solvent (e.g. methanol, acetone, etc.).
EFFECT: The crosslinking treatment is effective to improve the resistance to acid and alkali and to ensure the restoration of the fine porosity by immersing the chitosan in water after the freezing or drying treatment.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：为了获得适合作为固定化生物催化剂载体等的壳聚糖，通过将低分子量壳聚糖溶解在酸性水溶液中，将其滴加到碱性溶液中，得到颗粒状多孔壳聚糖，并将壳聚糖与有机二异氰酸酯化合物。组成：将分子量优选为10,000-230,000的低分子量壳聚糖溶解在酸性水溶液中，将所得溶液加入到例如乙酸乙酯的碱性溶液中。 NaOH，CaCO 3等通过0.1-0.25m / m直径的喷嘴获得颗粒状多孔壳聚糖，其通过在极性溶剂（例如4,4'-二苯基甲烷二异氰酸酯）中与有机二异氰酸酯化合物（例如4,4'-二苯基甲烷二异氰酸酯）接触而交联。甲醇，丙酮等）。效果：交联处理有效地提高了耐酸碱性，并且通过在冷冻或干燥处理后将壳聚糖浸入水中来确保细孔隙的恢复。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式