EP0763159A1 - Procede de fabrication de papier - Google Patents
Procede de fabrication de papierInfo
- Publication number
- EP0763159A1 EP0763159A1 EP96910068A EP96910068A EP0763159A1 EP 0763159 A1 EP0763159 A1 EP 0763159A1 EP 96910068 A EP96910068 A EP 96910068A EP 96910068 A EP96910068 A EP 96910068A EP 0763159 A1 EP0763159 A1 EP 0763159A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- paper
- starch
- fibrous composition
- level
- cationic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/04—Addition to the pulp; After-treatment of added substances in the pulp
- D21H23/06—Controlling the addition
- D21H23/14—Controlling the addition by selecting point of addition or time of contact between components
- D21H23/18—Addition at a location where shear forces are avoided before sheet-forming, e.g. after pulp beating or refining
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
- D21H17/24—Polysaccharides
- D21H17/28—Starch
- D21H17/29—Starch cationic
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/63—Inorganic compounds
- D21H17/66—Salts, e.g. alums
Definitions
- the subject of the invention is a new process for manufacturing paper, the term "paper” designating in the following any flat structure or sheet not only based on cellulose fibers - raw material most frequently used in the paper industry and cardboard - but also based on:
- - synthetic fibers such as polyamide, polyester and polyacrylic resin fibers, - mineral fibers such as asbestos, ceramic and glass fibers,
- any cationic starch used is always more in demand to neutralize or fix on said anionic waste and, correspondingly, always less available to fix on the reaction sites of the fibers, hence an increase in the level of starch not retained on the sheet and a lower resistance of the latter.
- EP 0 276 200 to combine a cationic polysaccharide and a aluminum compound of an anionic nature, which is generally formed in situ by the use of alkali, under conditions such that the pH of the fibrous mass must be maintained at a precise value (7 to 8) at a precise location of the paper machine, i.e. immediately before the headbox.
- patent EP 0 276 200 in no way discloses the retention rate that can be obtained with regard to the cationic starch used (product "CATO 102" having a fixed nitrogen level of 0.30% approximately), nor the physical characteristics of the paper resulting from the use of such cationic polymer / anionic aluminum compound associations ".
- EP 285.487 to maintain relatively low levels of cationic starch (0.3 - 0.4% by weight of fibers) but by obligatorily associating said starch, in addition to a polychloride of aluminum, with a mineral filler (in particular carbonate calcium) and a sizing agent (in particular of the dimeric alkyl ketene type or "AKD” or of the succinic acid anhydride type or "ASA").
- a mineral filler in particular carbonate calcium
- a sizing agent in particular of the dimeric alkyl ketene type or "AKD" or of the succinic acid anhydride type or "ASA”
- anionic trash catchers products of the PEI (polyethylene i ine) or p-DADMAC (poly di alkyl dimethyl ammonium chloride) type are more effective than an aluminum polychloride ( whose chemical composition is not specified), which is presented as "practically ineffective in terms of retention".
- PEI polyethylene i ine
- p-DADMAC poly di alkyl dimethyl ammonium chloride
- Patent FR 2,289,674 describes the specific implementation, in media highly concentrated in alumina sulfate, of amphoteric starches of the sulfo-succinate type of reduced cationicity (degree of substitution or "DS" announced from 0.03 corresponding at a fixed nitrogen level of less than 0.30% relative to the dry weight of the starch) in order to improve the retention of pigments of the titanium dioxide type.
- degree of substitution or "DS" announced from 0.03 corresponding at a fixed nitrogen level of less than 0.30% relative to the dry weight of the starch
- the physical characteristics of the paper expressed by the MULLEN index alone, can be improved but in a very limited way (maximum MULLEN obtained:
- Patent EP 257,338 describes the specific use of amphoteric starches of phosphate type, in particular of waxy base, of cationicity qualifying as “low” or “medium” (maximum DS of 0.08 corresponding to a lower fixed nitrogen level at 0.7% / dry weight of starch). This document envisages the interest of such amphoteric starches only from the sole perspective of improving the drainage performance of the paper machine.
- Patent application WO 81/00147 describes the preparation, according to a complicated process, of a mucus amphoteric based on cationic starch of reduced cationicity and a CMC type polymer, intended to coat a filler / fiber structure.
- patent EP 41,056 claiming the association between cationic starch and colloidal silicic acid. Such an association has been improved over time as it results from the description of patent application WO 86/00100 (anionic agent of aluminum silicate type or silicic acid modified by aluminum), of patent EP 348.366 (agent anionic of the polymeric silicic acid type having a specific specific surface) and of patent EP 490,425 (cationic agent containing from 0.05 to
- patents EP 349,366 and 490,425 are mainly focused on the "draining” and / or “retention” aspects and do not really tackle the study of the physical characteristics of the paper.
- the present invention relates to a process for manufacturing paper from a fibrous composition, characterized in that the said fibrous composition is brought into contact, simultaneously or not, with at least one cationic starch having a fixed nitrogen level greater than 0.95%, expressed on the dry weight of starch and with at least one polyaluminium compound.
- the cationic starches used in accordance with the invention can be obtained by any current or future technique, in an aqueous medium, in a solvent medium or in the dry phase, capable of allowing one or more nitrogen group (s) of nature electropositive to be fixed on a starch or a mixture of starches of all natures and origins when the nitrogen level thus fixed is greater than 0.95% by weight of dry starch.
- Said nitrogen groups may in particular contain a tertiary or quaternary nitrogen atom such as the reagents described in the following patents, filed in the name of the Applicant: - patent FR 2,434,821, in particular from page 3, line 29 on page 5 , line 10,
- the cationic starches used in the process according to the invention can in particular be prepared by any of the cationization techniques, in particular cationization in the dry phase, described in patents FR 2,434,821, FR 2,477,159, EP 233,336, EP 303,039, EP 333,292, EP 406,837, US 4,332,935 and US 429,444.
- the cationic starches used according to the invention can moreover be of a "polycationic" nature such as those described in the aforementioned patents EP 406,837 and US 429,444 since said starches have, ultimately, a higher fixed nitrogen content. at 0.95% on the dry weight of starch.
- starches having a fixed nitrogen level of approximately 1.0% to approximately 3.0%, preferably approximately
- Said starches can be based on potato, potato with high amylopectin content (waxy starch), corn, wheat, corn with high amylopectin content (waxy corn), high corn amylose, rice, pea or cassava content, based on cuts or fractions which can be made or obtained, such as amylose, amylopectin, particle size cuts known to those skilled in the art under the terms of wheat starch "A” and wheat starch “B", and any mixture of at least any two of the above products.
- the cationic starch which can be used for the production of paper according to the invention can in particular consist of a mixture of at least one starch from a cationic tuber, in particular potato starch.
- cationic and at least one cationic cereal starch in particular cationic corn or wheat.
- mixtures having cationic potato starch / wheat or cationic corn weight ratios ranging from approximately 10/90 to approximately 90/10, and in particular from 20/80 to 80/20, it being understood that the cationization may have been carried out, as described in patent EP 139,597 in the name of the Applicant, on the mixture of the two starches or, separately, on each of the two starches, which are then mixed.
- the cationic starches used in the papermaking process according to the invention which have a fixed nitrogen content greater than 0.95% on the dry weight of starch, may simultaneously, before or after the cationization, have been subjected to any chemical and / or physical treatment.
- the chemical treatment may in particular consist of one or other of the known techniques of crosslinking, oxidation, alkaline treatment, acid and / or enzymatic hydrolysis, esterification or plasticization.
- crosslinking technique is intended to mean in particular any process involving an agent such as adipic acid or one of its derivatives, a halohydrin (for example epichlorohydrin), a trimetaphosphate (for example sodium), oxychloride phosphorus or a resin (for example based on formalin).
- agent such as adipic acid or one of its derivatives, a halohydrin (for example epichlorohydrin), a trimetaphosphate (for example sodium), oxychloride phosphorus or a resin (for example based on formalin).
- oxidation technique means in particular any non-degrading oxidation process which makes it possible to substitute at least one OH group for the starch with a COOH group.
- selective oxidation techniques are described, among others, in European patents EP 23 202 and EP 562 927.
- esterification techniques means in particular any process which makes it possible to replace the starch (already cationized or not), at least in one place, with acetate, phosphate, succinate, sulfo-succinate, alkenyl-succinate, sulfate, maleate groups, propionate or carboxyl.
- the starches used in the papermaking process according to the invention can consist of amphoteric starches, namely products which are both cationic (fixed nitrogen level greater than 0.95% / dry weight of starch) and anionic.
- the cationic starches can easily be used (with a view to being brought into contact with the fibrous composition) in the form of dilute aqueous adhesives of variable concentrations, generally less than 20%, preferably between approximately 15% and about 1%.
- the preparation of the adhesives is carried out in a manner known per se, by discontinuous or continuous cooking, for example, at 110-130 ° C., in a continuous pressure cooker or "jet-cooker" suitable for carrying out the dosing and cooking operations. and dilution.
- starch in the form of an uncooked or pregelatinized starch powder, this prior to and / or when it is brought into contact with the fibrous composition.
- the Applicant Company has in particular observed that the high rate of fixed nitrogen characteristic of the starches used in the context of the invention could allow the latter to dissolve satisfactorily (ie, not instantaneously but gradually) under conditions of temperature very significantly lower than those adopted in jet-cooker, for example at temperatures between 10 and 50 ° C approximately.
- starch powders can advantageously be brought into contact, by any suitable means, with fibrous compositions whose temperature is raised and / or maintained by any suitable means at a value of approximately 25 ° C. to approximately 50 ° C.
- the present invention allows it, among other things and by the nature of the starches that it implements, to simplify certain paper-making processes by eliminating traditional means of continuous or discontinuous cooking of starch.
- cationic starch has a viscosity of about 300 to about
- BRABENDER units UB
- Said viscosity is measured on a "BRABENDER 350 CMG" type device.
- a starch sample (25.0 g) is used in sufficient water to obtain a total charge of 480 g. This is introduced into the cooking chamber of the viscometer. Cooking is done from in a controlled manner (1.5 ° C / min) and the viscosity of the adhesive is assessed after it has been worn and then maintained for 20 minutes at a temperature of 92 ° C.
- the cationic starch and the flour composition are brought into contact under conditions such that said cationic starch represents from approximately 0.2 to approximately 6%, preferably from 0.3 to 4 %, and even more preferably from 0.7 to 3%, of the weight of said fibrous composition.
- said particular cationic starch as described above is associated with at least one "anionic waste sensor" of a particular type, namely a polyaluminium compound.
- polyaluminium compound within the meaning of the present invention, is meant in particular the products which are commonly called “aluminum polyhydroxide” “aluminum polychloride”, “basic aluminum polychloride”, “basic aluminum polychloride “or” aluminum polysulfate "and preferably consists of one or more of the following products: 1. the salts of formula:
- salts in particular consist of or come close to the products "TENFLOC 18" or "PAC 18" and "EKOFLOCK” supplied by EKA-NOBEL or AKZO-NOBEL;
- (m / 3n) xl00 is generally between approximately 40% and
- a salt corresponding to formula IV consists in particular of WAC supplied by ELF-ATOCHEM; 5. the salts of formula:
- the polyaluminum compound advantageously consists of a salt of formula I, II, IV or V and consists in particular of a product of the WAC, PAC 18 or EKOFLOCK type.
- the polyaluminium compounds used according to the present invention have an aluminum content, expressed as Al 2 0 3 , of approximately 8% to approximately 20% by weight, in particular from 10% to 18% by weight.
- the polyaluminium compound and the fibrous composition are brought into contact under conditions such that said polyaluminium compound, expressed by weight of Al 2 Q, represents from approximately 0.01% to approximately 0 , 5%, preferably from 0.015% to 0.4%, of the weight of said fibrous composition.
- said conditions for bringing them into contact with one another, cationic starch, the polyaluminum compound and the fibrous composition the very great and surprising flexibility of the manufacture of paper according to the invention.
- the process according to the invention in no way imposes that the cationic starch is brought into contact with the fibrous composition before the polyaluminium compound, or conversely that the polyaluminium compound is put in contact with the fibrous composition before the cationic starch.
- the Applicant Company has even observed that it is entirely possible to bring the cationic starch and the polyaluminum compound simultaneously or almost simultaneously into contact with the fibrous composition.
- the polyaluminium compound could, in particular in very closed circuits, be introduced, in whole or in part, at the very level of the waters under canvas.
- the polyaluminium compound can in particular be brought into contact with the fibrous composition between a level corresponding to the first vat of the wet part of the paper machine and a level situated just after the purifier of the paper machine.
- the cationic starch and the polyaluminum compound can be introduced in an indifferent order at the level of the wet part of the paper machine, including being brought into contact simultaneously or almost simultaneously with the fibrous composition.
- the time between contacting, respectively, either the cationic starch, or the polyaluminum compound with the fibrous composition, and contacting, respectively, either the polyaluminum compound or the cationic starch. with the fibrous composition is generally at most equal to approximately 120 minutes and in particular between 0 and 60 minutes, preferably between 0 and 45 minutes, and more preferably between 10 seconds and 40 minutes.
- the process for manufacturing paper according to the invention has, among other advantages, in addition to being simple and profitable, making it possible, in particular under difficult conditions ( incorporated pasta of FCR or old paper, significant closure of the circuits), to obtain good starch retention, to improve the physical characteristics of the paper and to ensure a machine speed meeting the requirements of the practice, or even to improve said machine speed and therefore, overall, to improve the profitability of the system.
- the Applicant Company has found that the use, simultaneous or not, of a polyaluminium compound and a cationic starch whose fixed nitrogen level is high, in accordance with the invention makes it possible, in particular, to remove all or part of certain surface treatments applied to the sheet after its formation.
- a paper in particular a paper obtained under difficult conditions
- Such a treatment, applied to any one or to both sides of the paper generally makes it possible to increase the proportion of starch, native or physically and / or chemically modified, entering into the constitution of this paper, thus giving it a better resistance.
- any additional operation being costly. Going to "size-press” entails, in addition to an additional cost linked to the equipment and the additional drying operation which it induces, a significant reduction, generally of the order of 15 to 25%, in the speed of machines and therefore paper production.
- the method according to the invention is characterized in that the paper obtained is not subjected, on any one of its two faces or even on all of its two faces, to any surface treatment using using a starch, native or physically and / or chemically modified.
- Another predominant advantage of the papermaking process according to the invention is, as indicated above, making it possible, compared with the techniques of the prior art, to obtain an improved starch retention rate, without negatively influencing the physical characteristics of the paper and / or obtain improved physical characteristics of the paper without negatively influencing the starch retention rate. Furthermore and quite remarkably, the process which is the subject of the present invention is capable, even under difficult conditions (pulp based on FCR or old paper, significant closure of the circuits) of significantly improving both the rate starch retention and physical characteristics of the paper, as will be exemplified below.
- paper In the context of the present invention, the concept of paper is not, as specified at the beginning of the description, in any way limiting and includes, in particular, papers for graphic uses (in particular for printing-writing, for inkjet printing, for offset printing, for reprography) and papers for wrapping and packaging (papers for corrugated, for flexible packaging of the thin kraft type or others).
- papers for graphic uses in particular for printing-writing, for inkjet printing, for offset printing, for reprography
- papers for wrapping and packaging papers for corrugated, for flexible packaging of the thin kraft type or others.
- the Applicant Company has observed in particular that the process according to the invention is particularly well suited for the production of cover or flute type paper for corrugated cardboard.
- the method according to the invention makes it possible to obtain corrugated corrugated paper under conditions (starch retention, machine speed) improved compared to the techniques of the prior art and / or having improved characteristics compared to say technical.
- CMT index n (according to standard NF Q03-044 or ISO 7263) and in "MULLEN index” (burst index according to standard NF Q03-053 or ISO 2758).
- the present invention is characterized in that the paper obtained is a paper for graphic use or a paper for wrapping or packaging, in particular a corrugated paper or a cover paper for corrugated cardboard.
- the method according to the invention makes it possible to prepare a corrugated paper for non-surface corrugated cardboard, with a grammage of 120 to 130 g / m 2 , in particular obtained from old paper, having:
- the fibrous composition which is used in the context of the present invention advantageously has a so-called “neutral” or “pseudo neutral” pH, namely from approximately 6.0 to approximately 8.0, preferably from 6.1 to 7.1, said pH being able to be controlled or uncontrolled (“free pH”) as may be the case under difficult operating conditions.
- the fibrous composition has a pH, controlled or not, lying between approximately 6.0 and approximately 8.0 and preferably between 6.1 and 7.1.
- said fibrous composition may contain and / or be brought into contact, if necessary, with one or other of the products recommended in the abovementioned patents in the prior art, including at least a product chosen from anionic starches, such as phosphorylated or sulfosuccinylated starches, bonding agents such as aklyl ketene dimers and succinic acid anhydrides, fillers, such as calcium carbonate and kaolin, retention such as polyacrylamides, polyethylene imines, polyalkyl ammonium chlorides and other synthetic retention agents, silicic and aluminosilicon compounds.
- anionic starches such as phosphorylated or sulfosuccinylated starches
- bonding agents such as aklyl ketene dimers and succinic acid anhydrides
- fillers such as calcium carbonate and kaolin
- retention such as polyacrylamides, polyethylene imines, polyalkyl ammonium chlorides and other synthetic retention agents, silicic and alum
- said fibrous composition can advantageously and at any time contain and / or be brought into contact with a silicic or aluminosilicate compound such as those described in the abovementioned patents EP 41 056 and EP 0 522 940 and, optionally, an agent bonding and / or filler.
- This silicic or aluminosilicate compound can be introduced into the fibrous composition simultaneously with the starch or at a different time, posterior or anterior, generally spaced from a few seconds to a few minutes from the moment of the introduction of said cationic starch.
- the process for manufacturing paper according to the invention is also characterized in that the fibrous composition is brought into contact at any time before the formation of the sheet, with at least one silica or aluminosilicon compound, in particular with a colloidal silicic acid, the particles of which have a specific surface of approximately 50 to approximately 1000 m / g, as well as possibly with at least one filler or a bonding agent.
- a fibrous composition (pulp) is reconstituted, by dilution in water, having the following main characteristics: pH 6.6
- Soluble ash 8.9 g / 1 In the context of this example, representative of difficult paper preparation conditions, we study the performance (starch retention rate, MULLEN index and CMT 60 index) of the various cationic or amphoteric starches below in association or not with a polyaluminium compound hereafter designated by the generic term of "CPA".
- STARCH A Cationic (potato) starch with a fixed nitrogen level of about 1% on the dry weight of starch.
- STARCH B 25/75 mixture of a cationic starch and a cationic wheat starch, with a fixed nitrogen level of approximately 1.2%.
- STARCH C Cationic starch at 0.8% fixed nitrogen.
- STARCH D Mixture 25/75 cationic starch / cationic wheat at 0.65% fixed nitrogen.
- STARCH E Waxy amphoteric phosphate starch corn starch with a fixed nitrogen content of 0.25%.
- STARCH F amphoteric starch of the suifosuccinate type with a fixed nitrogen level of 0.25%. All of these starches were prepared in the form of adhesives on a continuous cooking appliance under the following conditions:
- the contact time between the starch and the fibrous composition is 5 minutes.
- the contact time between the CPA (when it is used) and the fibrous composition is 6 minutes.
- MULLEN - MULLEN index
- CMT CMT 60 index
- N N (according to standard NF Q03-044 or ISO 7263).
- MULLEN index makes it possible to assess the burst strength of a paper (for example a cover paper for corrugated paper) subjected to an increasing hydrostatic pressure perpendicular to its surface, said index taking account of the grammage of said paper.
- the CMT 60 index is particularly suitable for the evaluation of corrugated cardboard paper and in particular for determining the flat compressive strength of such paper.
- ESSAI 1 starch and any CPA
- ESSAI 2 CPA
- TESTS 3, 5, 7, 9 and 11 does not make it possible, under the conditions of these tests, to obtain a set of completely satisfactory performances, in particular if we consider the starch retention rates (RA) and the indices MULLEN obtained.
- RA starch retention rates
- MULLEN index at least equal to 1.65
- CMT 60 index at least equal to 130
- TEST 2 is totally ineffective, 3) only cationic starches (including a mixture of cationic starches - see TEST 6) with a sufficiently high fixed nitrogen level and associated with a CPA
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Paper (AREA)
- Making Paper Articles (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9503823A FR2732368B1 (fr) | 1995-03-31 | 1995-03-31 | Nouveau procede de fabrication de papier |
FR9503823 | 1995-03-31 | ||
PCT/FR1996/000468 WO1996030591A1 (fr) | 1995-03-31 | 1996-03-28 | Procede de fabrication de papier |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0763159A1 true EP0763159A1 (fr) | 1997-03-19 |
EP0763159B1 EP0763159B1 (fr) | 2001-12-05 |
EP0763159B2 EP0763159B2 (fr) | 2004-12-08 |
Family
ID=9477625
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96910068A Expired - Lifetime EP0763159B2 (fr) | 1995-03-31 | 1996-03-28 | Procede de fabrication de papier |
Country Status (13)
Country | Link |
---|---|
US (1) | US5891305A (fr) |
EP (1) | EP0763159B2 (fr) |
JP (1) | JPH10501590A (fr) |
AT (1) | ATE210220T1 (fr) |
AU (1) | AU5338296A (fr) |
BR (1) | BR9605947A (fr) |
CA (1) | CA2190499A1 (fr) |
DE (1) | DE69617573T3 (fr) |
ES (1) | ES2169234T3 (fr) |
FR (1) | FR2732368B1 (fr) |
NO (1) | NO317239B1 (fr) |
NZ (1) | NZ305397A (fr) |
WO (1) | WO1996030591A1 (fr) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DK1293603T3 (da) | 1997-09-30 | 2007-08-13 | Nalco Chemical Co | Fremstilling af papir under anvendelse af kolloide borsilicater |
CO5070714A1 (es) | 1998-03-06 | 2001-08-28 | Nalco Chemical Co | Proceso para la preparacion de silice coloidal estable |
US6379501B1 (en) * | 1999-12-14 | 2002-04-30 | Hercules Incorporated | Cellulose products and processes for preparing the same |
EP1338699A1 (fr) * | 2002-02-08 | 2003-08-27 | AKZO Nobel N.V. | Dispersion de collage |
KR100755895B1 (ko) | 2004-08-31 | 2007-09-06 | 은광판지포장 주식회사 | 부식방지 및 전자파 차단용 골판지 |
EP2682419A1 (fr) | 2012-07-06 | 2014-01-08 | Cryovac, Inc. | Revêtement anti-buée et son film anti-buée en polyester |
US8821689B1 (en) * | 2013-01-25 | 2014-09-02 | Penford Products Co. | Starch-biogum compositions |
CN104947499B (zh) | 2013-12-18 | 2018-01-19 | 艺康美国股份有限公司 | 硅溶胶、制备其的设备和方法和其在造纸中的应用 |
CN114673025B (zh) | 2016-06-01 | 2023-12-05 | 艺康美国股份有限公司 | 用于在高电荷需求系统中造纸的高效强度方案 |
Family Cites Families (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1274654A (en) * | 1968-09-12 | 1972-05-17 | Laporte Industries Ltd | Improvements in or relating to paper sizing |
US4066495A (en) * | 1974-06-26 | 1978-01-03 | Anheuser-Busch, Incorporated | Method of making paper containing cationic starch and an anionic retention aid |
CA1057009A (fr) * | 1974-10-24 | 1979-06-26 | Wadym Jarowenko | Nouveau derive de l'amidon |
FR2418297A1 (fr) * | 1978-02-27 | 1979-09-21 | Ugine Kuhlmann | Amelioration aux procedes de fabrication de papiers et de cartons |
FR2434821A1 (fr) * | 1978-08-31 | 1980-03-28 | Roquette Freres | Procede de cationisation de l'amidon, nouveaux amidons cationises ainsi obtenus et leurs applications |
DE2949886A1 (de) * | 1979-12-12 | 1981-06-19 | Degussa Ag, 6000 Frankfurt | Verfahren zur herstellung kationischer staerkeaether |
US4281109A (en) * | 1980-03-03 | 1981-07-28 | National Starch And Chemical Corporation | Pollution-free cationization of starch |
AU546999B2 (en) * | 1980-05-28 | 1985-10-03 | Eka A.B. | Adding binder to paper making stock |
JPH0314957B2 (fr) * | 1980-09-19 | 1991-02-27 | Sunden Olof | |
FR2557166B1 (fr) * | 1983-10-27 | 1986-07-04 | Roquette Freres | Additif cationique de masse pour la fabrication du papier comprenant un melange d'au moins un amidon de cereale et d'au moins un amidon de tubercule cationique et son procede de fabrication |
SE8403062L (sv) * | 1984-06-07 | 1985-12-08 | Eka Ab | Forfarande vid papperstillverkning |
DE3604796A1 (de) * | 1986-02-15 | 1987-08-20 | Degussa | Verfahren zur trockenkationisierung von staerke |
US4876336A (en) * | 1986-08-13 | 1989-10-24 | National Starch And Chemical Corporation | Amphoteric starches and process for their preparation |
SE8700058L (sv) * | 1987-01-09 | 1988-07-10 | Skogsindustriens Tekniska Fors | Papperstillverkning |
FR2612213B1 (fr) * | 1987-03-13 | 1989-06-30 | Roquette Freres | Procede de fabrication du papier |
FR2612961B1 (fr) * | 1987-03-23 | 1989-10-13 | Atochem | Procede de fabrication du papier par adjonction a la suspension fibreuse d'une charge minerale, d'un agent de collage, d'amidon cationique et de polychlorure d'aluminium |
FR2612960B1 (fr) * | 1987-03-23 | 1989-06-16 | Atochem | Procede de fabrication du papier d'emballage et du carton par adjonction a la suspension fibreuse d'amidon cationique et de polychlorure d'aluminium |
DE3726427A1 (de) * | 1987-08-08 | 1989-02-16 | Degussa | Verfahren zur trockenkationisierung von staerke ii |
DE3726984A1 (de) * | 1987-08-13 | 1989-02-23 | Degussa | Verfahren zur trockenkationisierung von galaktomannanen (ii) |
JPH0192498A (ja) * | 1987-10-02 | 1989-04-11 | Hokuetsu Paper Mills Ltd | 中性紙の製造方法 |
NL8800647A (nl) * | 1988-03-16 | 1989-10-16 | Avebe Coop Verkoop Prod | Werkwijze voor het vervaardigen van zetmeelethers. |
SE461156B (sv) * | 1988-05-25 | 1990-01-15 | Eka Nobel Ab | Saett foer framstaellning av papper varvid formning och avvattning aeger rum i naervaro av en aluminiumfoerening, ett katjoniskt retentionsmedel och en polymer kiselsyra |
CA2019675C (fr) * | 1989-07-07 | 1997-12-30 | John J. Tsai | Polysaccharides cationiques et reactifs pour leur preparation |
US4992536A (en) * | 1989-10-31 | 1991-02-12 | National Starch And Chemical Investment Holding Corporation | Preparation of polycationic polysaccharides by site selective reaction |
SE9003954L (sv) * | 1990-12-11 | 1992-06-12 | Eka Nobel Ab | Saett foer framstaellning av ark- eller banformiga cellulosafiberinnehaallande produkter |
FR2678961B1 (fr) * | 1991-07-12 | 1993-10-15 | Atochem | Procede nouveau de fabrication de papier et papier ainsi obtenu. |
-
1995
- 1995-03-31 FR FR9503823A patent/FR2732368B1/fr not_active Expired - Fee Related
-
1996
- 1996-03-28 JP JP8529018A patent/JPH10501590A/ja active Pending
- 1996-03-28 EP EP96910068A patent/EP0763159B2/fr not_active Expired - Lifetime
- 1996-03-28 AT AT96910068T patent/ATE210220T1/de not_active IP Right Cessation
- 1996-03-28 AU AU53382/96A patent/AU5338296A/en not_active Abandoned
- 1996-03-28 US US08/737,602 patent/US5891305A/en not_active Expired - Fee Related
- 1996-03-28 NZ NZ305397A patent/NZ305397A/en unknown
- 1996-03-28 CA CA002190499A patent/CA2190499A1/fr not_active Abandoned
- 1996-03-28 DE DE69617573T patent/DE69617573T3/de not_active Expired - Lifetime
- 1996-03-28 ES ES96910068T patent/ES2169234T3/es not_active Expired - Lifetime
- 1996-03-28 WO PCT/FR1996/000468 patent/WO1996030591A1/fr active IP Right Grant
- 1996-03-28 BR BR9605947A patent/BR9605947A/pt not_active Application Discontinuation
- 1996-11-26 NO NO19965024A patent/NO317239B1/no not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO9630591A1 * |
Also Published As
Publication number | Publication date |
---|---|
JPH10501590A (ja) | 1998-02-10 |
AU5338296A (en) | 1996-10-16 |
FR2732368A1 (fr) | 1996-10-04 |
EP0763159B2 (fr) | 2004-12-08 |
CA2190499A1 (fr) | 1996-10-03 |
NO965024L (no) | 1996-11-26 |
DE69617573T2 (de) | 2002-08-01 |
ES2169234T3 (es) | 2002-07-01 |
EP0763159B1 (fr) | 2001-12-05 |
FR2732368B1 (fr) | 1997-06-06 |
ATE210220T1 (de) | 2001-12-15 |
US5891305A (en) | 1999-04-06 |
NO317239B1 (no) | 2004-09-27 |
NO965024D0 (no) | 1996-11-26 |
BR9605947A (pt) | 1997-08-19 |
DE69617573D1 (de) | 2002-01-17 |
WO1996030591A1 (fr) | 1996-10-03 |
NZ305397A (en) | 1997-12-19 |
DE69617573T3 (de) | 2005-08-11 |
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