| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 61 | 셀룰로스 분말의 제조에서 특정한 스크린의 용도 | KR1020087027980 | 2007-04-12 | KR101445270B1 | 2014-09-29 | 베르,볼프강; 슈나이더,한스-페터; 메르츠,군나르,에르.; 크루제,페터 |
| 본 발명은, 셀룰로스 분말의 제조 방법에서 상이한 메쉬 또는 공극 크기의 2개 이상의 층을 포함하는 스크린의 용도뿐만 아니라, 셀룰로스 펄프의 분쇄 및 수득된 입자들의 체질을 연속식으로 수행할 수 있는 상기 제조 방법에 관한 것이다. 셀룰로스 분말, 상이한 메쉬 또는 공극 크기, 스크린, 스크리닝 층, 지지 층, 셀룰로스 분말의 제조 방법. | ||||||
| 62 | RECYCLING OF MAN-MADE CELLULOSIC FIBERS | US15545899 | 2016-02-03 | US20180002836A1 | 2018-01-04 | Christian Sperger |
| A process for producing a man-made cellulosic molded body using a man-made cellulosic raw material, including the steps of forming a cellulose solution by dissolution of cellulosic raw material, the extrusion of the cellulose solution obtained to form a molded body, and coagulation and regeneration of the cellulose to obtain the man-made cellulosic molded body, wherein the man-made cellulosic raw material is mixed with a second cellulosic raw material prior to forming the cellulose solution. | ||||||
| 63 | Process for the manufacture of viscose | US14397467 | 2013-04-30 | US09493581B2 | 2016-11-15 | Martin Richard Cockroft |
| A process for the manufacture of viscose comprises the steps of: a) providing a non-dissolving pulp as a raw material; b) steeping the pulp in caustic solution; c) processing the steeped pulp; d) steeping the processed steeped pulp for a second time in caustic solution; and e) further processing the pulp from step d) to form a viscose solution. | ||||||
| 64 | PROCESS AND A DISSOLVING PULP MANUFACTURED BY THE PROCESS | US14403889 | 2013-05-28 | US20150136346A1 | 2015-05-21 | Johannes Bogren; Jim Parkås; Gabriele Schild; Andrea Borgards |
| The invention relates to processes for manufacturing pulp and more specifically to improved processes for manufacturing dissolving pulp. The processes have primarily been developed to be used in connection with large scale kraft processes, i.e. they have been designed to be incorporated into a plant. A liquor derivable from the process and comprising xylan, lignin, alkali and water is also disclosed as well as a dissolving pulp produced by the process. | ||||||
| 65 | PROCESS | US14397467 | 2013-04-30 | US20150126729A1 | 2015-05-07 | Martin Richard Cockroft |
| A process for the manufacture of viscose comprises the steps of: a) providing a non-dissolving pulp as a raw material; b) steeping the pulp in caustic solution; c) processing the steeped pulp; d) steeping the processed steeped pulp for a second time in caustic solution; and e) further processing the pulp from step d) to form a viscose solution. | ||||||
| 66 | POLYSACCHARIDE-BASED POLYMER TISSUE ADHESIVE FOR MEDICAL USE | US13790336 | 2013-03-08 | US20130190267A1 | 2013-07-25 | George K. Kodokian; Samuel David Arthur |
| Tissue adhesives formed by reacting an oxidized polysaccharide with a water-dispersible multi-arm polyether amine, wherein at least three of the arms are terminated by primary amine groups, are disclosed. The use of the tissue adhesives for medical and veterinary applications such as topical wound closure; and surgical procedures, such as intestinal anastomosis, vascular anastomosis, tissue repair, and ophthalmic procedures; drug delivery; anti-adhesive applications; and as a bulking agent to treat urinary incontinence are described. | ||||||
| 67 | Polysaccharide-based polymer tissue adhesive for medical use | US11244756 | 2005-10-06 | US08431114B2 | 2013-04-30 | George K. Kodokian; Samuel David Arthur |
| Tissue adhesives formed by reacting an oxidized polysaccharide with a water-dispersible multi-arm polyether amine, wherein at least three of the arms are terminated by primary amine groups, are disclosed. The use of the tissue adhesives for medical and veterinary applications such as topical wound closure; and surgical procedures, such as intestinal anastomosis, vascular anastomosis, tissue repair, and ophthalmic procedures; drug delivery; anti-adhesive applications; and as a bulking agent to treat urinary incontinence are described. | ||||||
| 68 | Polysaccharide-based polymer tissue adhesive for medical use | US11244756 | 2005-10-06 | US20060078536A1 | 2006-04-13 | George Kodokian; Samuel Arthur |
| Tissue adhesives formed by reacting an oxidized polysaccharide with a water-dispersible multi-arm polyether amine, wherein at least three of the arms are terminated by primary amine groups, are disclosed. The use of the tissue adhesives for medical and veterinary applications such as topical wound closure; and surgical procedures, such as intestinal anastomosis, vascular anastomosis, tissue repair, and ophthalmic procedures; drug delivery; anti-adhesive applications; and as a bulking agent to treat urinary incontinence are described. | ||||||
| 69 | Method for viscose production | US09367354 | 1999-08-12 | US06392033B1 | 2002-05-21 | Tatjana Poggi; Geza Hidasi |
| A process for producing viscose wherein the caustic soda used previously in the alkalization of electron-untreated cellulose can be used in the alkalization of electron-treated cellulosic material, provided the level of dispersed solids in the caustic soda does not exceed 0.16 g/l. | ||||||
| 70 | Method of producing a viscose solution | US419458 | 1999-10-15 | US6068689A | 2000-05-30 | Kent Bjur; Anders Cassel; Ingemar Uneback; Arkady Stavtsov |
| The invention is a method of producing a viscose solution by______________________________________ a) irradiating .alpha.-cellulose with ionizing particles, b) mercerizing the irradiated .alpha.-cellulose with alkali, c) xanthating the irradiated mercerized .alpha.-cellulose with an amount less than 28% of carbon disulfide based on the weight of .alpha.-cellulose, and d) dissolving the xanthated .alpha.-cellulose in an aqueous alkali solution; ______________________________________ and adding at least one surfactant before or after one or more steps of the method. The surfactant is chosen from the group consisting of a water soluble nonionic and a cationic surfactant, and it is added to the process in an amount of 0.02-5% by weight of the amount of .alpha.-cellulose. The viscose solution has suitable properties for the production of regenerated cellulose fibers. | ||||||
| 71 | Recycling of dyed cellulosic waste | US569510 | 1995-12-08 | US5609676A | 1997-03-11 | Andreas von der Eltz |
| A process which comprises suspending a reactive-dyed cellulose material, optionally in mixture with pulp, in an alkali metal hydroxide solution (alkali cellulose), optionally subjecting the alkali cellulose to the action of a reducing sulfur compound at a temperature from 20.degree. to 80.degree. C., then allowing the alkali cellulose to ripen at temperatures from 30.degree. to 80.degree. C. for at least 30 minutes, dissolving the alkali cellulose at a temperature from 10.degree. to 30.degree. C. by conversion with carbon disulfide into the xanthate, and spinning the xanthated alkali cellulose into fibers, makes it possible to recycle cellulosic waste textiles into similarly colored or colorless cellulose fiber materials. | ||||||
| 72 | Viscose rayon spinning machine | US969727 | 1978-12-15 | US4477951A | 1984-10-23 | Charles J. Geyer, Jr.; Ben E. White |
| Apparatus for spinning viscose rayon comprising an acid bath having an enclosure arranged for substantially completely trapping and collecting any gases emanating from said bath, a plurality of fiber-forming jets disposed substantially along beneath the surface of said acid bath, means for forcing aqueous xanthated alkali cellulose in liquid form into said jets and through said jets upwardly into said bath, and take-up means located within said enclosure above said bath for taking up the resulting fibers in an upward direction within said enclosure, and thence through an enclosed secondary hot bath for the purpose of stretching the cellulose-xanthate, regenerating it to cellulose, and for trapping and collecting gases and other chemicals. | ||||||
| 73 | Process for converting cellulose directly into alkali cellulose | US294790 | 1981-08-20 | US4373098A | 1983-02-08 | Gedeon I. Deak |
| A direct process for converting cellulose into alkali cellulose for subsequent production of a filterable viscose by combining particles of cellulose with the largest 1% of the particles having a minimum size Y of less than 600 microns and the bulk density X of the particles being greater than 0.2 g/cm.sup.3 such that the relationship between X and Y is defined by the equation Y-760X.ltoreq.50; and 125 g to 240 g of 20-40% aqueous NaOH for each 100 g of cellulose for at least 4 minutes at 15.degree.-60.degree. C. | ||||||
| 74 | Process for the preparation of viscose and process for the spinning of the viscose thus obtained | US157109 | 1980-06-06 | US4368078A | 1983-01-11 | Gianfranco Angelini; Ugo Paoletti |
| A process for the xanthation of alkali-cellulose comprises the reaction ofhe alkali-cellulose with CS.sub.2 in excess with respect to the desired xanthate substitution degree at a pressure which increases from the initial 110 mm Hg to about 400-500 mm Hg and at a temperature increasing from about 21.degree. C. to about 23.degree.-25.degree. C. The unreacted CS.sub.2 is removed from the reactor, once the desired xanthate substitution degree is reached, by application of a vacuum. This viscose rayon continuous spinning process eliminates the need for the usual desulphuration phase for decreasing the sulphur content and for bleaching the product. The viscose obtained has reduced content of compounds capable of forming elementary sulphur. The regenerated cellulose yarn has improved characteristics as to the sulphur content and degree of whiteness. | ||||||
| 75 | Process for manufacturing viscose | US101448 | 1979-12-10 | US4287334A | 1981-09-01 | Heinrich Fauth; Werner Koch |
| Process for manufacturing viscose solutions having good filterability and producing low amounts of sulfide gases during subsequent spinning; said process comprising treating cellulose with a first alkali metal hydroxide solution in a first alkalization step, freeing the alkalized cellulose from at least part of the excess hydroxide solution without pressing-off, and treating the cellulose with a second alkali metal hydroxide solution in a second alkalization step while maintaining the temperature of the reaction mixture at not more than 18.degree. C. | ||||||
| 76 | Xanthate-Lewis acid complexes | US638713 | 1975-12-08 | US3994950A | 1976-11-30 | Noel I. Burke; Douglas J. Bridgeford; Albin F. Turbak |
| Xanthate esters of the form: ##EQU1## where R is an alkyl function having at least one H in a position alpha to the R - O bond, (C).sub.n is a linear alkyl function either substituted or unsubstituted, with n = 1 - 3, X has a basicity greater than the >C = S function and comprises a C or S containing functional group having at least one double or triple bond to a hetero atom, the functional group being connected to (C).sub.n through C or S; are reacted with Lewis acids, either neat or in non-protonic non-aqueous solvents, to yield novel Lewis acid complexes of the esters. The Lewis acid -- xanthate ester complex is decomposed by admixture with water or a protonic non-aqueous solvent, e.g. methanol, ethanol, etc., glycol, cellosolve, liquid ammonia, lower alkyl primary or secondary amines, aniline, etc., to yield an unsaturated derivative of R. | ||||||
| 77 | Process for adding particulate cellulose to alkali cellulose | US46819674 | 1974-05-08 | US3914130A | 1975-10-21 | NEWCOMER MICHAEL PAUL |
| In a process for the preparation of alkali cellulose comprising steeping cellulose pulp in an excess of caustic soda solution to produce alkali cellulose, removing excess caustic soda solution from the alkali cellulose, comminuting the alkali cellulose, adding ball-milled cellulosic material to the alkali cellulose to form a mixture thereof, and mechanically agitating the mixture, the improvement wherein the ball-milled material is added to the alkali cellulose by: A. FORMING AN AIR SUSPENSION, AT ATMOSPHERIC PRESSURE, OF BALLMILLED CELLULOSIC MATERIAL HAVING A PARTICLE SIZE LESS THAN ABOUT 120 MICRONS; B. FEEDING COMMINUTED ALKALI CELLULOSE INTO THE SUSPENDED CELLULOSIC MATERIAL TO FORM AN INTIMATE MIXTURE THEREOF; AND C. ALLOWING THE MIXTURE TO SETTLE, WHEREUPON THE SETTLED MIXTURE IS MECHANICALLY AGITATED.
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| 78 | Strong acid neutralization of polymeric alcohol xanthates | US34098873 | 1973-03-14 | US3884908A | 1975-05-20 | BURKE N I; BRIDGEFORD D J |
| A process for neutralizing the free excess alkali in a polymeric alcohol xanthate comprises dispersing particulate polymeric alcohol xanthate in an inert liquid vehicle in which said xanthate is substantially insoluble, adding a substantially stoichiometric quantity of strong acid based on the free alkali content of said xanthate to said dispersion by small increments, and intimately mixing said increments of acid with said particulate xanthate at a rate such that free alkali is neutralized while leaving a xanthate of relatively high D.S.
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| 79 | Process using diverse types of cellulose for preparing viscose | US24971272 | 1972-05-01 | US3817983A | 1974-06-18 | TEN BORECK J; LAURANCE D |
| In a viscose manufacturing process, the additional steps of using diverse forms of cellulosic materials by ball-milling these diverse forms of cellulosic materials and subsequently adding the ball-milled material to the alkali cellulose which is prepared as an intermediate during the process of manufacturing viscose, in an amount up to about 50 percent by weight based on the combined weight of the ball-milled cellulosic material added plus the weight of the cellulose content of the alkali cellulose present.
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| 80 | Method of preparing polysaccharide films and fiber- of paper-reinforced polysaccharide films | US3497584D | 1967-03-29 | US3497584A | 1970-02-24 | BRIDGEFORD DOUGLAS J; GALLAGHER DUDLEY M |
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