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51. 发明专利

GB473547A An improved press for use in the treatment of cellulose sheets with alkaline lye 未知
公开(公告)号：GB473547A
公开(公告)日：1937-10-11
申请号：GB1061236
申请日：1936-04-09
申请人： WEGELIN & HUEBNER MASCHINENFAB
IPC分类号： C08B1/12
摘要： 473,547. Presses for separating liquids from solids. WEGELIN & HUBNER, MASCHINENFABRIK UND EISENGIESSEREI AKT.-GES. April 9, 1936, No. 10612. Convention date, April 11, 1935. [Class 46] A press for use in the treatment of cellulose sheets with alkaline lye is arranged in a container, one end wall of which serves as counterplate or abutment during the pressing operation and is movable in the direction in which the pressure is applied to facilitate the removal of the sheets from the press. The plates 5, Fig. 1, of the press are arranged vertically over a perforated false bottom 4 of the container 3 and the cellulose sheets are placed between the plates when the latter are opened out. On completion of the steeping process, the lye is drained from the container and the plates pressed together against the end wall 8 by the movable head 7 operated by a plunger 9. Surplus lye drains away through the plates 5, each of which comprises two perforated sheets with an intermediate sheet of metal netting. The end wall 8 is clamped in the closed position by wedge-shaped prongs 19, Fig. 3, which engage fixed rods 20 and inclined surfaces on the wall. The prongs are moved into and out of the clamping position by a manually operated worm 24 which engages a toothed sector on a rotatable centre-piece 17 to which the arms 18 of the prongs are pivoted. When the wall 8 is unclamped, it moves outward under pressure from the plunger on rails 12 drawing with it rails 32, 33, Fig. 6, on which the press plates move. As they are drawn out the rails 32 take up an inclined position, so that the press plates separate as they leave the container and allow the cellulose sheets to fall to a conveyer 15. The supply and discharge of pressure fluid for operating the plunger 9, and also a piston (not shown) which retracts the head 7, is controlled by a valve device 96, Fig. 13, operated by a lever 60. The lever is moved manually from the neutral position 65 to operative positions 64, 66 to start a movement of the head 7, but each movement is stopped automatically by engagement of a lever carried by the head against collars on the operating rod 54 of a slide valve 67 governing the supply of pressure fluid to the cylinder 57 of a piston connected by a link 59 to the lever 60. The plates 5 are arranged in groups of six, separated by thicker plates 6. The plates 6 are connected together by a Gall's chain 87, Fig. 19, and the adjacent plates of each group are connected by loops 94. The wall 8 is moved inward from the position shown in Fig. 6 by rods carrying a stop with which the head 7 engages in its backward movement. The outward movement of the wall follows engagement of the head 7 with pawls on the rods, which pawls are brought into operative position on withdrawal of the prongs 19 from their clamping position.

52. 发明专利

GB344126A Improvements relating to horizontal dipping presses 未知
公开(公告)号：GB344126A
公开(公告)日：1931-03-05
申请号：GB22630
申请日：1930-01-02
申请人： WILHELM DUETZMANN
IPC分类号： C08B1/12
摘要： A horizontal dipping trough suitable for the preparation of alkali cellulose, comprises a container which is provided with a fall opening a4 capable of being closed by slides, flaps, or the like, in a fluidtight manner. The thrust bearing b is situated either on the rear wall a2 of the container (as in Fig. 4), or immediately in front of or behind the opening a4, in which case the thrust bearing is apertured and the aperture closed by means of a pressure plate e which may also serve to close the fall opening a4 as is shown in Fig. 1. When working with an apparatus having an apertured thrust bearing, as for example, according to Fig. 1, the pressure head k is retracted to the position shown and the cellulose sheets are inserted between the partitions d. The pressure plate e is lowered to close the fall opening a4 (which, however, may be closed by a separate flap or the like from below), lye is admitted through the pipe h and the chemical treatment of the sheets is carried out. When this has been done, the lye is allowed to flow away through i, and the pressure head k advanced to express the surplus of lye from the sheets. The pressure plate e is finally raised and the pressure head further advanced so as to cause the partitions to pass into the extension a1, and the cellulose sheets to fall through the opening a4 into a truck provided below. The pressure head and partitions are then withdrawn to their original position. When using the apparatus shown in Fig. 4, the cellulose sheets, after treatment with the lye, are pressed against the thrust bearing b to remove the excess of lye; the fall-opening is then uncovered by lowering the flap p operated by the link member q, and the pressure head and partitions retracted, thereby allowing the cellulose sheets to fall out.

53. 发明专利

FR682327A 未知
公开(公告)号：FR682327A
公开(公告)日：1930-05-26
申请号：FR682327D
申请日：1929-09-26
申请人： M HAUSSER MASCHF
IPC分类号： C08B1/12

54. 发明专利

FR586616A 未知
公开(公告)号：FR586616A
公开(公告)日：1925-03-31
申请号：FR586616D
申请日：1924-09-26
IPC分类号： B30B9/10 , C08B1/12

55. 发明专利

DE406333C 未知
公开(公告)号：DE406333C
公开(公告)日：1924-11-21
申请号：DEK0074263
申请日：1920-09-03
申请人： FRITZ KEMPTER
IPC分类号： C08B1/12

56. 发明专利

MX369114B PROCESO PARA LA PREPARACIÓN DE NANOPARTÍCULAS DE POLISACÁRIDOS. 未知
公开(公告)号：MX369114B
公开(公告)日：2019-10-29
申请号：MX2014010979
申请日：2013-03-12
申请人： NANOVELOS SP ZO O
发明人： WASIAK IGA , CIACH TOMASZ
IPC分类号： A61K47/69 , A61K9/51 , A61K47/36 , C08B1/12 , C08B11/12 , C08B37/02 , C08B37/08 , C08L1/28 , C08L5/02 , C08L5/08
摘要： La presente invención se refiere a un proceso para preparar nanopartículas a partir de polisacáridos en una suspensión acuosa, el método caracterizado porque comprende los pasos de: A).- Proveer un polisacárido o derivado del mismo; B).- Oxidar dicho polisacárido o derivado del mismo para obtener un polisacárido o derivado del mismo oxídado que comprende grupos aldehído, en donde la oxidación se lleva cabo hasta obtener un grado de oxidación de 0.1% a 80% de los anillos de azúcar en el polisacárido; C).- Combinar el polisacárido o derivado del mismo oxidado con al menos una sustancia activa que comprende un grupo amina primario o secundario en agua y un solvente orgánico de tal forma que la relación molar de grupos aldehídos del polisacárido o derivado del mismo oxidado a grupos amina de la sustancia activa es mayor a 1, y permitir que los grupos amina reaccionen con los grupos aldehídos para proveer un polisacárido o derivado del mismo oxidado a grupos amina de la sustancia activa es mayor a 1, y permitir que los grupos amina reacciones con los grupos aldehídos para proveer un polisacárido o derivado del mismo modificado, son formar nanopartículas; D).- Combinar el polisacárido o derivado del mismo modificado con al menos un agente formador de nanopartículas que comprende un grupo amina primario o secundario en agua o una mezcla de agua y un solvente orgánico, y permitir que los grupos amina reaccionen con los grupos aldehídos, de tal forma que la reacción de los grupos amina con los grupos aldehídos produce nanopartículas de polisacáridos en una suspensión acuosa; en donde dichas nanopartículas de polisacárido comprende el polisacárido o derivado del mismo oxidado, el al menos una sustancia activa, y el al menos un agente formador de nanopartículas; en donde el al menos un agente formador de nanopartículas se selecciona del grupo qe consiste de: butilamina, pentilamina, hexilamina, octiloamina, decilamina, dodecilamina, tetradecilamina, hexadecilamina, ciclohexilamina, bencilamina, etilfenilamina, esfingosinas, amida del ácido oleico, amida de ácido palmítico, hidrazida del ácido esteárico, hidrazida del ácido palmítco, hidrazida de ácido oleico, leucina, isoleucina, valina metionina, alamina, fenilalanina , cefalina y sales de amina de las mismas; en dodne la sustancia activa se seleccional del grupo que consiste de: danunorubicina, doxorubicina, aminoacridinas, cisplatino, metotrexato, citarabina, gemcitabina, dapsona, Aciclovir, azidotimidina, 5-fluorouracilo, mercaptropurina, imatinib, sunitinib, bleomicina, actinomicina, mitamicina, dactinomicina, melfalán, temozolomida, celocoxib, nelarabina, cladribina, isoniazida, 9-aminoacridina, 4´,6-diamidino-2-fenilind ol, rodamina, rojo neutro, azul de tripano y sales de los mismos; en donde el polisacárido se selecciona del grupo que consiste de: dextrano, almidón, derivados de almidón hidroxietilalmidón, amilosa derivados de amilosa, derivados de celulosa, hidroxietilcelulosa, hidroxipropilcelulosa, carboximetilcelulosa, glucógeno, ácido hialurónico, heparina, ácido algínico, carragenina y sales de los mismos; en donde no hay nanopartículas presente en el proceso hasta que la reacción del paso D produce las nanopartículas del polisacárido; en donde las únicas nanoparticulas en suspensión acuosa son las nanopartículas de polisacárido creadas en el paso D, y en donde las reacciones de los pasos C y D son conducidas independientemente a un pH de la solución de 1 a 9 y a una temperatura de 10 a 100°C. .

57. 发明专利

CA2866682C PROCESS FOR THE PREPARATION OF POLYSACCHARIDE NANOPARTICLES 未知
公开(公告)号：CA2866682C
公开(公告)日：2016-05-17
申请号：CA2866682
申请日：2013-03-12
申请人： NANOVELOS SP Z O O
发明人： CIACH TOMASZ , WASIAK IGA
IPC分类号： C08B1/12 , A61K9/51 , A61K47/36 , C08B11/12 , C08B37/00 , C08B37/02 , C08B37/08 , C08L1/28 , C08L5/02 , C08L5/08
摘要： The process for the preparation of nanoparticles from polysaccharides and derivatives thereof, by their specific partial oxidation to produce aldehyde groups and attach compounds with amino or other group with the R-NH2 bond which react with aldehyde groups, comprising oxidizing the polysaccharide or derivative thereof by a known method to obtain aldehyde groups until the oxidation degree of 0,1% to 80% of the sugar rings is obtained, then adding at least one nanoparticle-forming agent which after attachment of the aldehyde group exhibits hydrophobic properties, selected from the group comprising: aliphatic or aromatic organic amines containing from 4 to 20 carbon atoms, amides and hydrazides of aliphatic and aromatic organic acids containing from 4 to 20 carbon atoms, hydrophobic amino acids, phosphatidylethanolamine, and at least one active substance containing at least one amino, amido or hydrazide group, to the solution of the oxidized polysaccharide in water or a mixture of water and an organic solvent, carrying the reaction out at pH of the solution from 1 to 9, at the temperature of from 10 to 100°C, wherein the total molar ratio of amino groups to aldehyde groups is from 20 to 0,5.

58. 发明专利

CA2866682A1 PROCESS FOR THE PREPARATION OF POLYSACCHARIDE NANOPARTICLES 未知
公开(公告)号：CA2866682A1
公开(公告)日：2013-09-19
申请号：CA2866682
申请日：2013-03-12
申请人： NANOVELOS SP Z O O
发明人： CIACH TOMASZ , WASIAK IGA
IPC分类号： C08B1/12 , A61K9/51 , A61K47/36 , C08B11/12 , C08B37/00 , C08B37/02 , C08B37/08 , C08L1/28 , C08L5/02 , C08L5/08
摘要： The process for the preparation of nanoparticles from polysaccharides and derivatives thereof, by their specific partial oxidation to produce aldehyde groups and attach compounds with amino or other group with the R-NH2 bond which react with aldehyde groups, comprising oxidizing the polysaccharide or derivative thereof by a known method to obtain aldehyde groups until the oxidation degree of 0,1% to 80% of the sugar rings is obtained, then adding at least one nanoparticle-forming agent which after attachment of the aldehyde group exhibits hydrophobic properties, selected from the group comprising: aliphatic or aromatic organic amines containing from 4 to 20 carbon atoms, amides and hydrazides of aliphatic and aromatic organic acids containing from 4 to 20 carbon atoms, hydrophobic amino acids, phosphatidylethanolamine, and at least one active substance containing at least one amino, amido or hydrazide group, to the solution of the oxidized polysaccharide in water or a mixture of water and an organic solvent, carrying the reaction out at pH of the solution from 1 to 9, at the temperature of from 10 to 100°C, wherein the total molar ratio of amino groups to aldehyde groups is from 20 to 0,5.

59. 发明专利

MX9205548A 未知
公开(公告)号：MX9205548A
公开(公告)日：1993-04-01
申请号：MX9205548
申请日：1992-09-29
申请人： KIMBERLY CLARK CO
发明人： NING XIN , SUN TONG
IPC分类号： A61L15/60 , C08B11/12 , C08B11/20 , C08B15/00 , C08B1/12

60. 发明专利

FR1195170A 未知
公开(公告)号：FR1195170A
公开(公告)日：1959-11-16
申请号：FR1195170D
申请日：1958-04-29
申请人： GLANZSTOFF AG
IPC分类号： C08B1/12 , C08B9/00 , D01F2/08

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