-
公开(公告)号：EP0200973A3
公开(公告)日：1988-03-30
申请号：EP86105421
申请日：1986-04-18
申请人： KANEBO, LTD. , KANEBO RAYON, Ltd.
CPC分类号： C08J3/16 , C08B16/00 , C08J2301/06 , C08L1/06 , C08L2666/02
摘要： @ A process for producing fine cellulose particles, which comprises
(1) mixing viscose with a water-soluble anionic polymeric compound or polyethylene glycol or its derivative to form a dispersion of fine particles of viscose, (2) (i) heating the dispersion or mixing it with a coagulating agent to thereby coagulate the viscose in the dispersion, and thereafter neutralizing it with an acid to form fine particles of cellulose, or (ii) coagulating and neutralizing the dispersion with an acid to form fine particles of cellulose, and (3) thereafter, separating the fine particles of cellulose from the mother liquor. The fine cellulose particles (a) are composed substantially of II-type cellulose, (b) have a crystallinity, of 5 to 35 % by weight, (c) are composed substantially of particles of not more than 20 micrometers, and (d) have a sharp particle size distribution.-
公开(公告)号：EP0200973A2
公开(公告)日：1986-12-17
申请号：EP86105421.1
申请日：1986-04-18
申请人： KANEBO, LTD.
摘要： @ A process for producing fine cellulose particles, which comprises
(1) mixing viscose with a water-soluble anionic polymeric compound or polyethylene glycol or its derivative to form a dispersion of fine particles of viscose,
(2) (i) heating the dispersion or mixing it with a coagulating agent to thereby coagulate the viscose in the dispersion, and thereafter neutralizing it with an acid to form fine particles of cellulose, or (ii) coagulating and neutralizing the dispersion with an acid to form fine particles of cellulose, and
(3) thereafter, separating the fine particles of cellulose from the mother liquor. The fine cellulose particles
(a) are composed substantially of II-type cellulose,
(b) have a crystallinity, of 5 to 35 % by weight,
(c) are composed substantially of particles of not more than 20 micrometers, and
(d) have a sharp particle size distribution.摘要翻译： （1）将粘胶与水溶性阴离子聚合物化合物或聚乙二醇或其衍生物混合以形成粘胶微粒分散体，（2）（i）将所述分散体或 将其与凝结剂混合，从而使粘胶在分散体中凝固，然后用酸中和以形成纤维素的细颗粒，或（ii）用酸将分散体用酸凝结和中和以形成纤维素的细颗粒，和（ 3）之后，从母液中分离纤维素细颗粒。 （a）实质上由II型纤维素构成，（b）结晶度为5〜35重量％，（c）实质上由20微米以下的粒子构成，（d） 具有尖锐的粒度分布。
-
公开(公告)号：EP0200973B1
公开(公告)日：1993-06-30
申请号：EP86105421.1
申请日：1986-04-18
申请人： KANEBO, LTD.
CPC分类号： C08J3/16 , C08B16/00 , C08J2301/06 , C08L1/06 , C08L2666/02
-
公开(公告)号：EP0264853B1
公开(公告)日：1993-01-20
申请号：EP87115168.4
申请日：1987-10-16
申请人： KANEBO, LTD.
发明人： Okuma, Shigeru , Yamagishi, Kanji , Hara, Masami , Suzuki, Keizo , Yamamoto, Toshihiro , Yoshidome, Hideo
CPC分类号： C08J3/16 , C08B15/10 , C08J2301/02
-
公开(公告)号：EP0264853A3
公开(公告)日：1989-02-15
申请号：EP87115168.4
申请日：1987-10-16
申请人： KANEBO, LTD.
发明人： Okuma, Shigeru , Yamagishi, Kanji , Hara, Masami , Suzuki, Keizo , Yamamoto, Toshihiro , Yoshidome, Hideo
CPC分类号： C08J3/16 , C08B15/10 , C08J2301/02
摘要： Fine crosslinked cellulose particles, wherein (l) 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 µm, 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 (l) 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：EP0425477A3
公开(公告)日：1991-05-08
申请号：EP91100588.2
申请日：1987-10-16
申请人： KANEBO LTD. , KANEBO RAYON, Ltd.
发明人： Okuma, Shigeru , Yamagishi, Kanji , Hara, Masami , Suzuki, Keizo , Yamamoto, Toshihiro , Yoshidome, Hideo
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 µm, 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.
-
7.发明公开Fine cellulose particles and process for production thereof 失效Feinteilchen-Cellulose和Verfahren zu deren Herstellung。
公开(公告)号：EP0425477A2
公开(公告)日：1991-05-02
申请号：EP91100588.2
申请日：1987-10-16
申请人： KANEBO LTD. , KANEBO RAYON, Ltd.
发明人： Okuma, Shigeru , Yamagishi, Kanji , Hara, Masami , Suzuki, Keizo , Yamamoto, Toshihiro , Yoshidome, Hideo
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 µm, 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.
摘要翻译： 细交联纤维素颗粒，其中（1）所述纤维素颗粒基本上由II型纤维素结晶相和非结晶纤维素相组成，（2）所述纤维素颗粒具有通过X射线衍射测定的结晶度为5 至35％，（3）所述纤维素颗粒基本上由平均粒径不超过300μm的球形至细长球形颗粒组成，和（4）所述纤维素颗粒具有不超过聚乙二醇的排阻界限分子量 超过4000。 颗粒可能在非结晶相中的纤维素分子链之间具有交联。 精细的交联纤维素颗粒通过以下步骤制备：（1）制备纤维素黄原酸盐的凝固粘胶纤维的细颗粒，（2）将凝固的粘胶细颗粒进行交联反应，然后用酸中和，或者首先用 酸，然后使中和的颗粒进行交联反应，和（3）从母液中分离得到的细交联纤维素颗粒，并在任选地使其进行脱硫或用酸，水或甲醇洗涤之后对其进行热处理。
-
8.发明公开Fine cellulose particles and process for production thereof 失效Feinteilchen-Cellulose和Verfahren zu deren Herstellung。
公开(公告)号：EP0264853A2
公开(公告)日：1988-04-27
申请号：EP87115168.4
申请日：1987-10-16
申请人： KANEBO, LTD.
发明人： Okuma, Shigeru , Yamagishi, Kanji , Hara, Masami , Suzuki, Keizo , Yamamoto, Toshihiro , Yoshidome, Hideo
CPC分类号： C08J3/16 , C08B15/10 , C08J2301/02
摘要： Fine crosslinked cellulose particles, wherein (l) 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 µm, 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 (l) 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.
摘要翻译： 细交联纤维素颗粒，其中（l）所述纤维素颗粒基本上由II型纤维素结晶相和非结晶纤维素相组成，（2）所述纤维素颗粒具有通过X射线衍射测定的结晶度为5 至35％，（3）所述纤维素颗粒基本上由平均粒径不超过300μm的球形至细长球形颗粒组成，和（4）所述纤维素颗粒具有不超过聚乙二醇的排阻界限分子量 超过4000。 颗粒可能在非结晶相中的纤维素分子链之间具有交联。 精细的交联纤维素颗粒通过（1）制备纤维素黄原酸盐的凝固粘胶纤维的细颗粒来制备，（2）使凝固的粘胶细颗粒进行交联反应，然后用酸中和，或者首先用上述微粒中和 酸，然后使中和的颗粒进行交联反应，和（3）从母液中分离得到的细交联纤维素颗粒，并在任选地使其进行脱硫或用酸，水或甲醇洗涤之后对其进行热处理。
-
-
-
-
-
-
-
搜索结果
8 条记录 (耗时 0.013 秒)
