公开(公告)号：US5108596A

公开(公告)日：1992-04-28

申请号：US445667

申请日：1989-12-04

申请人： Shigeru Ookuma ,  Kouei Igarashi ,  Masami Hara ,  Kazuhiro Aso ,  Hideo Yoshidome ,  Hiroshi Nakayama ,  Keizo Suzuki ,  Kazuhiko Nakajima

发明人： Shigeru Ookuma ,  Kouei Igarashi ,  Masami Hara ,  Kazuhiro Aso ,  Hideo Yoshidome ,  Hiroshi Nakayama ,  Keizo Suzuki ,  Kazuhiko Nakajima

IPC分类号： B01J20/22 ,  B01J39/22 ,  B01J41/16

CPC分类号： B01J39/22 ,  B01J20/22 ,  B01J41/16

摘要： This invention relates to ion-exchanged fine cellulose particles, porous fine cellulose particles which can be advantageously used as an affinity carrier, and methods of production thereof. These fine particles of the invention have the advantage that they possess excellent pressure-resistant strength and can treat treatment liquors under pressure at a high flowing velocity. Thus, they can be advantageously used industrially in various separation and purification processes.

公开(公告)号：US5196527A

公开(公告)日：1993-03-23

申请号：US830689

申请日：1992-02-04

申请人： Shigeru Ookuma ,  Kouei Igarashi ,  Masami Hara ,  Kazuhiro Aso ,  Hideo Yoshidome ,  Hiroshi Nakayama ,  Keizo Suzuki ,  Kazuhiko Nakajima

发明人： Shigeru Ookuma ,  Kouei Igarashi ,  Masami Hara ,  Kazuhiro Aso ,  Hideo Yoshidome ,  Hiroshi Nakayama ,  Keizo Suzuki ,  Kazuhiko Nakajima

IPC分类号： B01J20/22 ,  B01J39/22 ,  B01J41/16

CPC分类号： B01J39/22 ,  B01J20/22 ,  B01J41/16

摘要： This invention relates to ion-exchanged fine cellulose particles, porous fine cellulose particles which can be advantageously used as an affinity carrier, and methods of production thereof. These fine particles of the invention have the advantage that they possess excellent pressure-resistant strength and can treat treatment liquors under pressure at a high flowing velocity. Thus, they can be advantageously used industrially in various separation and purification processes.

摘要翻译： 本发明涉及离子交换微细纤维素颗粒，可有利地用作亲和载体的多孔微细纤维素颗粒及其生产方法。 本发明的这些细颗粒具有优异的耐压强度，能够以高流动速度处理加压处理液。 因此，它们可以有利地在工业上用于各种分离和纯化方法。

公开(公告)号：US4946953A

公开(公告)日：1990-08-07

申请号：US107973

申请日：1987-10-13

申请人： Shigeru Okuma ,  Kanji Yamagishi ,  Masami Hara ,  Keizo Suzuki ,  Toshihiro Yamamoto ,  Hideo Yoshidome

发明人： Shigeru Okuma ,  Kanji Yamagishi ,  Masami Hara ,  Keizo Suzuki ,  Toshihiro Yamamoto ,  Hideo Yoshidome

IPC分类号： C08B15/10 ,  C08J3/16

CPC分类号： C08J3/16 ,  C08B15/10 ,  C08J2301/02

摘要： Fine crosslinked cellulose particles, wherein (1) said cellulose particles are composed substantially of a II-type cellulose crystalline phase and a non-crystalline cellulose phase, (2) said cellulose particles have a crystallinity, determined by X-ray diffractometry, of 5 to 35%, (3) said cellulose particles consist substantially of spherical to elongated spherical particles having an average particle diameter of not more than 300 .mu.m, and (4) said cellulose particles having an exclusion limit molecular weight by polyethylene glycol of not more than 4,000. The particles may have crosslinkage among the cellulose molecular chains in the non-crystalline phase. The fine crosslinked cellulose particles are prepared by (1) preparing fine particles of a coagulated viscose of cellulose xanthate, (2) subjecting the fine particles of coagulated viscose to crosslinking reaction and then neutralizing them with an acid, or first neutralizing said fine particles with an acid and then subjecting the neutralized particles to crosslinking reaction, and (3) separating the resulting fine crosslinked cellulose particles from the mother liquor, and heat-treating them after optionally subjecting them to desulfurization or to washing with an acid, water or methanol.

公开(公告)号：US5064950A

公开(公告)日：1991-11-12

申请号：US528933

申请日：1990-05-25

申请人： Shigeru Okuma ,  Kanji Yamagishi ,  Masami Hara ,  Keizo Suzuki ,  Toshihiro Yamamoto ,  Hideo Yoshidome

发明人： Shigeru Okuma ,  Kanji Yamagishi ,  Masami Hara ,  Keizo Suzuki ,  Toshihiro Yamamoto ,  Hideo Yoshidome

IPC分类号： C08B15/10 ,  C08J3/16

CPC分类号： C08J3/16 ,  C08B15/10 ,  C08J2301/02

摘要： Fine crosslinked cellulose particles, wherein (1) said cellulose particles are composed substantially of a II-type cellulose crystalline phase and a non-crystalline cellulose phase, (2) said cellulose particles have a crystallinity, determined by X-ray diffractometry, of 5 to 35%, (3) said cellulose particles consist substantially of spherical to elongated spherical particles having an average particle diameter of not more than 300 .mu.m, and (4) said cellulose particles having an exclusion limit molecular weight by polyethylene glycol of not more than 4,000. The particles may have crosslinkage among the cellulose molecular chains in the non-crystalline phase. The fine crosslinked cellulose particles are prepared by (1) preparing fine particles of a coagulated viscose of cellulose xanthate, (2) subjecting the fine particles of coagulated viscose to crosslinking reaction and then neutralizing them with an acid, or first neutralizing said fine particles with an acid and then subjecting the neutralized particles to crosslinking reaction, and (3) separating the resulting fine crosslinked cellulose particles from the mother liquor, and heat-treating them after optionally subjecting them to desulfurization or to washing with an acid, water or methanol.

公开(公告)号：US5593778A

公开(公告)日：1997-01-14

申请号：US433324

申请日：1995-05-05

申请人： Yoshikazu Kondo ,  Masao Matsui ,  Hideo Yoshidome ,  Takuji Osaki ,  Hiroshi Kajiyama ,  Eiichi Ozeki ,  Yasuhiro Fujii

发明人： Yoshikazu Kondo ,  Masao Matsui ,  Hideo Yoshidome ,  Takuji Osaki ,  Hiroshi Kajiyama ,  Eiichi Ozeki ,  Yasuhiro Fujii

IPC分类号： C08G63/60 ,  C08G63/664 ,  C08G63/688 ,  D01F6/62 ,  D01F8/14 ,  D02G3/00 ,  B27B3/08 ,  C08F20/00

CPC分类号： D04H3/16 ,  C08G63/60 ,  C08G63/664 ,  C08G63/6882 ,  D01F6/625 ,  D01F8/14 ,  D04H3/14 ,  Y10T428/2929

摘要： A biodegradable copolyester having an average molecular weight of at least 50,000 produced by copolymerizing a lactic acid component as the main component with PEG, an aliphatic polyester or a sulfo group-containing ester-forming compound, a molded article produced using it, such as a conjugate fiber, and a process for producing the molded article.

摘要翻译： PCT No.PCT / JP94 / 01489 371日期：1995年5月5日 102（e）日期1995年5月5日PCT 1994年9月8日PCT公布。 出版物WO95 / 07311 日期：1995年3月16日通过以乳酸成分为主成分与PEG，脂肪族聚酯或含磺基的成酯化合物共聚合得到的平均分子量为50,000以下的生物降解性共聚酯，使用 它，如复合纤维，以及制造模制品的方法。