[go: up one dir, main page]

US20060162886A1 - Process for improving dry strength and drainage of paper and paperboard - Google Patents

Process for improving dry strength and drainage of paper and paperboard Download PDF

Info

Publication number
US20060162886A1
US20060162886A1 US11/338,049 US33804906A US2006162886A1 US 20060162886 A1 US20060162886 A1 US 20060162886A1 US 33804906 A US33804906 A US 33804906A US 2006162886 A1 US2006162886 A1 US 2006162886A1
Authority
US
United States
Prior art keywords
glyoxal
glyoxylated
paper
polymer
working solution
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.)
Abandoned
Application number
US11/338,049
Other languages
English (en)
Inventor
William Smith
Jeffrey Meier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Paradigm Chemical and Consulting LLC
Original Assignee
Paradigm Chemical and Consulting LLC
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Paradigm Chemical and Consulting LLC filed Critical Paradigm Chemical and Consulting LLC
Priority to US11/338,049 priority Critical patent/US20060162886A1/en
Assigned to PARADIGM CHEMICAL & CONSULTING, LLC reassignment PARADIGM CHEMICAL & CONSULTING, LLC ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: MEIER, JEFFREY J., SMITH, WILLIAM E.
Publication of US20060162886A1 publication Critical patent/US20060162886A1/en
Abandoned legal-status Critical Current

Links

Images

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
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/06—Paper forming aids
    • D21H21/10—Retention agents or drainage improvers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F265/00—Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00
    • C08F265/10—Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00 on to polymers of amides or imides
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
    • C08L51/003—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to macromolecular compounds obtained by reactions only involving unsaturated carbon-to-carbon bonds
    • 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
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/18—Reinforcing agents
    • 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
    • D21H17/03—Non-macromolecular organic compounds
    • D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
    • D21H17/06—Alcohols; Phenols; Ethers; Aldehydes; Ketones; Acetals; Ketals
    • 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
    • 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
    • D21H17/20—Macromolecular organic compounds
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/37—Polymers of unsaturated acids or derivatives thereof, e.g. polyacrylates
    • D21H17/375—Poly(meth)acrylamide

Definitions

  • This invention is directed towards the manufacturing process of paper, paperboard, corrugated products, and other fiber-containing products such as gypsum board/drywall and fiber-based backing for vinyl flooring.
  • This invention further relates to additives used in the wet end of a papermaking process to confer dry strength to the resulting product.
  • An additional aspect of one aspect of the invention is a process which improves manufacturing efficiency by promoting increased drainage during fiber processing.
  • Glyoxal is another additive which is frequently combined with a polyacrylamide polymer for incorporation into the wet end of a papermaking process.
  • a glyoxylated resin additive is frequently used to obtain increased internal bond strength, greater dry tensile strength, improved modulus of elasticity, and improvements in sizing effectiveness.
  • the glyoxylated polymer additives may have cationic charges
  • the amount of cationic charge can be controlled so as to provide desired drainage and retention properties to the paper. Proper pH regulation avoids problems associated with excessive cationic charges such as flocculation of the fibers.
  • a glyoxylated product may be added to an aqueous suspension of paper stock while the paper stock is in the head box recirculation loop, in the thick stock chest, the hydropulper, or at other points in the process prior to or after formation of a sheet.
  • An example of the latter would be the spraying of a gloxylated polymer solution between the plies of a multi-ply sheet.
  • the 4% to 6% solids solution is thereafter metered into a papermaking process as a glyoxylated polyacrylamide polymer solution, for example.
  • the working solution is useful for incorporation into a thick paper stock solution having between about 2% to about 5% solids and thereby achieve an increase in dry strength of the resulting paper product.
  • the working solution can also be used to improve drainage properties in a thin paper stock having solids of less than about 1%.
  • a glyoxylated additive the proportion of glyoxal to polymer of which is varied, depending upon monitored production goals, such as sheet strength, stock drainage and drying rates, white water quality, and process variables which may include water properties, stock pH, fiber quality, fines content, and the type and amount of additional additives used in the paper making process.
  • the FIGURE is a schematic view of a process of incorporating a high solid content glyoxylated polymer into the wet end of a papermaking process.
  • glyoxal will react with macromolecules such as polyacrylamide polymers and other polymeric agents in a cross-linking reaction.
  • Glyoxal reacts with the polymeric agent to improve the paper properties, such as strength, upon drying of the paper.
  • the amount of glyoxal resin is within the ratio of about 15 percent to about 25 percent by dry weight of the glyoxal to dry weight of a cationic polymer such as polyacrylamide.
  • glyoxal can promote improved drainage properties of a paper furnish.
  • the glyoxal resin is added within a ratio of about 5 percent to about 15 percent by dry weight of the glyoxal to cationic polymer such as polyacrylamide.
  • PCV 005 and PCV 015 are nonionic polymers while the PCV 105 polymer has a 10% cationic charge.
  • the polymers used were prepared using dry powders which were dispersed in deionized water at a 1.7% solids concentration. Thereafter, glyoxal supplied by Noveon, Charlotte, N.C., at a 40% solids concentration was slowly added to the polymer solution while stirring to produce a 25:75 glyoxal to polymer ratio, on a solids basis, for each reactant.
  • Lignin sulfonate solids were added to the suspension of fibers at a concentration of 200 ppm, based upon the lignin sulfonate solids to the wet paper stock weight. The addition of lignin sulfonate solids was used to provide a water/fiber suspension having properties of a closed mill water system. The lignin sulfonate retards drainage and duplicates conditions of a typical fiber furnish.
  • Furnish samples of the 0.8% to 1.0% consistency solution described above were prepared using 500 ml aliquots which were mixed in a Britt jar for 10 seconds. Following mixing, a corresponding amount of a freshly prepared glyoxylated polymer was added at levels equivalent to 5 pounds of polymer solids per ton of fiber solids. Following addition of this polymer, the material within the Britt jar was stirred for an additional 20 seconds and the furnish transferred to a Buchner funnel having a coarse filter (Whatman grade 202,15 cm diameter). Prior to transferring the furnish to the funnel, a vacuum was applied to the supporting filter flask. A 10 second vacuum interval was applied to the furnish at which time the vacuum was removed and the amount of water drained during the 10 second time interval was measured.
  • low molecular weight gyloxylated polymers have a more significant impact upon furnish drainage than higher molecular weight polymers. This is true even when the higher molecular weight polymers have a cationic charge.
  • the use of lower molecular weight polymers provide for an increased number of polymer molecules which are available for interaction. In other words, the lower molecular weight polymers result in enhanced uniformity of coverage of the polymeric species on the fiber and fines surfaces, resulting in a better distribution of chemical bonding between the additive and the cellulose.
  • the free glyoxal serves as a scavenger for sulfide and other materials and which can bring about further improvements in drainage properties by scavenging materials that may otherwise contribute to reduced drainage.
  • the ability of freshly glyoxylated polymers to improve drainage properties of a commercial paper furnish having a clean, open water system was also evaluated.
  • the polymer used to evaluate drainage improvements was a copolymer consisting of a 93 mol percent of dimethyldiallyl ammonium chloride (DADMAC) and a 7 mol percent of polyacrylamide. This copolymer was obtained in an aqueous solution, therefore, it did not require dispersion in water.
  • DMDMAC dimethyldiallyl ammonium chloride
  • the glyoxylation process used was otherwise identical to that described in Example 1.
  • the paper furnish used was obtained from the headbox of a commercial paper machine making kraft multi-wall bag paper material.
  • the furnish composition was a mixture of 80% unbleached, refined virgin kraft Southern Pine pulp blended with 20% old corrugated containers.
  • the furnish was separated into four samples as set forth in Table 3.
  • a portion of the furnish was introduced into a Britt jar at a propeller rotation of 800 rpm, and using a screen made from the paper machine's forming fabric.
  • additional furnish was added to maintain a volume of between about 400 to about 600 ml.
  • the effluent from the jar was collected and consisted of process water and fines, i.e., fibrous material capable of passing through the screen.
  • Sample 3 was obtained by simply filtering a portion of the furnish.
  • Sample 4 preparation began by collecting long fibers trapped by the screen which were subsequently thoroughly washed with tap water. The washed long fibers were then re-dispersed in filtrate from the headbox sample.
  • the drainage test procedure was set up as described in reference to Example 1 above. However, because of the much higher drainage rate of the filtrate (Sample 3) and the long fiber sample (Sample 4) a different evaluation measurement was obtained. As seen in reference to Table 3, the time required to completely evacuate free water was measured. All measurements set forth in Table 3 are set forth at a drainage rate of milliliters per second. The amount of glyoxylated polymer used to treat the samples was identical to that in Example 1. All samples were adjusted to have the same solids-to-water ratio as occurred in the original headbox sample, except for the filtrate, Sample 3, which had no suspended solids. The headbox sample consisted of a 63% long fiber and a 37% fines composition.
  • the glyoxylated polymer significantly enhances the drainage rate of all the samples with the exception of long fibers in the process water.
  • the process water has been depleted of the primary material responsible for slow drainage, i.e., fines.
  • the freshly glyoxylated polymer brings about significant improvement in drainage rate.
  • the paper furnish was prepared in a laboratory using defiberized paper stocks of 98% old corrugated container and 2% old newsprint.
  • the drainage test procedures set forth in Example 1 were used and the results set forth below in Table 5.
  • the liquid reactants are generally stable for periods ranging between 6 months to 1 year and may be stored in bulk tanks equipped with metering pumps.
  • pumps may supply the required ingredients at a programmed flow rate to a header.
  • the required ingredients must be dispensed simultaneously, followed by static mixing.
  • Reactant A may be a polyacrylamide polymer, a copolymer of, for example, polyacrylamide and dimethlydiallyl ammonium chloride, or any number of linear or branched polymers modified by appendaged anionically or cationically charged groups.
  • Reactant B may be a liquid cationic starch solution, chitin, guar gum, or a hybrid product, such as a starch-cationic polymer complex with a high percentage (approximately 50 percent) of synthetic polymer
  • Reactant C may be a glyoxal at 40% solids or another suitable cross-linking agent.
  • Non-limiting examples include other dialdehydes, anhydrides, dianhydrides, polyfunctional amines, and polyamines.
  • sodium carbonate may be added in small amounts to increase the pH of the mixed reactants to a desired range of between about 7.8 to about 8.0.
  • a typical reaction time of 15 to 30 minutes may be used in which the reactants are continually mixed by an agitator in the reactor or some other form of agitation.
  • the pH of the resulting reactant is monitored and adjusted with either sodium carbonate or sulfuric acid to maintain a desired pH.
  • the product concentration in the reactor will typically be in a range of about 15% to about 35% solids.
  • the reactant is diluted with water using a static mixer.
  • the resulting working solution of freshly prepared glyoxylated polymer should be at a concentration of between about 4% to about 6% solids and which is then pumped to an accompanying storage tank.
  • two storage tanks may be employed to provide a continuous tank for operation.
  • the reaction product necessary for the desired papermaking process may be metered via a metering pump.
  • the metering pump is controlled by a distributed control system (DCS).
  • DCS distributed control system
  • Samples of glyoxylated polyacrylamide were prepared under laboratory conditions similar to conditions for use within a pulp or paper mill environment. Specifically, a base polymer of a low molecular weight, 3 mol percent charge polyacrylamide, designated PAM and a 40% aqueous solution of glyoxal was used to obtain various degrees of glyoxylation as measured relative to active PAM. The degrees of glyoxylation are set forth in Table 6.
  • the samples were prepared at ambient laboratory conditions with the pH adjusted to 7.8 using a dilute caustic followed by 15 minutes of vigorous stirring. During the stirring process, the pH typically drifts to the value of between 7.5 to 7.7, but no further pH changes were made.
  • the samples described above were evaluated for their drainage efficiency in a recycled paper furnish product.
  • the furnish was prepared in the laboratory by re-pulping a mixture consisting of 80% corrugated container and 20% newsprint.
  • the consistency of the furnish was 0.70% with a pH of 7.5.
  • the evaluation consisted of mixing 500 ml samples of furnish in a Britt jar using a stir rotation of 800 rpm in 15 seconds followed by the introduction of the respective sample or control by a syringe injection.
  • a polymer product application amount corresponding to 3 lbs./ton was selected with the pounds of polymer product being on the solids basis and the tons being on an oven-dry fiber basis.
  • Samples 7 and 8 were polymers made 21 and 26 days, respectively, and stored under ambient laboratory conditions prior to use in the drainage test reported above. Samples 3 through 6 were prepared 24 hours prior to use.
  • samples 5, 7, and 8 which have aged for 21 days as in sample 7 and 26 days as in sample 8, have a negative impact on desired properties.
  • the use of freshly glyoxylated polymers improves drainage properties resulting in a more efficient paper manufacturing process.
  • the freshly glyoxylated polymers can both increase the filtration efficiency of the furnish as well as prevent the formation of gels within storage and dispensing equipment used within the mill.
  • the three samples set forth in Table 7 were made using dosages equivalent to 5 lbs/ton on a solids basis in the treated samples.
  • the base for the starch treatment, sample 2 is a commercial liquid cationic starch.
  • the base for the polymer, sample 3 is a cationic low molecular weight solution polymer.
  • the base samples were used to prepare a 30% glyoxal and 70% base reaction product. Glyoxyalation was carried out at a pH of about 7.9 at 80° F. for a 15 minute period. This reaction process and timing simulates on-site production conditions within a paper or pulp mill.
  • the glyoxylated starch and the glyoxylated polymer as set forth in Table 7 can also be used at a similar dosage level of about 3 to about 5 lb/ton on a solids basis to be applied as a spray between ply layers on forming webs in a papermaking process. It is also envisioned that the strength additives can be sprayed onto forming webs prior to the drying of the webs to bring about improvements in dry strength.
  • the enhancements in the quality of the glyoxylated polymer strength and drainage additives are best achieved using the preparation methods described above in which the appropriate material quantities are combined and through control of the solution pH, mixing time, and post-reaction dilution control, allows for a high level of control over the quality and reactivity of the glyoxylated polymer additives.
  • the automation overcomes problems in the prior art dealing with gelation, loss of efficiency through storage and shipping, sensitivity to temperatures, along with age-dependent variability in the reactivity of the glyoxylated polymer additives.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Paper (AREA)
US11/338,049 2005-01-24 2006-01-24 Process for improving dry strength and drainage of paper and paperboard Abandoned US20060162886A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US11/338,049 US20060162886A1 (en) 2005-01-24 2006-01-24 Process for improving dry strength and drainage of paper and paperboard

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US64634105P 2005-01-24 2005-01-24
US11/338,049 US20060162886A1 (en) 2005-01-24 2006-01-24 Process for improving dry strength and drainage of paper and paperboard

Publications (1)

Publication Number Publication Date
US20060162886A1 true US20060162886A1 (en) 2006-07-27

Family

ID=36740980

Family Applications (1)

Application Number Title Priority Date Filing Date
US11/338,049 Abandoned US20060162886A1 (en) 2005-01-24 2006-01-24 Process for improving dry strength and drainage of paper and paperboard

Country Status (2)

Country Link
US (1) US20060162886A1 (fr)
WO (1) WO2006081183A2 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060270801A1 (en) * 2005-05-25 2006-11-30 Georgia-Pacific Resins, Inc. Glyoxalated inter-copolymers with high and adjustable charge density
US20080064819A1 (en) * 2006-09-07 2008-03-13 Wright Matthew D Glyoxalation of vinylamide polymer
US20080216979A1 (en) * 2006-07-21 2008-09-11 Bercen Incorporated Paper making process using cationic polyacrylamides and crosslinking compositions for use in same
US20110224374A1 (en) * 2007-11-05 2011-09-15 Basf Se Glyoxalated n-vinylamine
US8920606B2 (en) 2011-12-06 2014-12-30 Basf Se Preparation of polyvinylamide cellulose reactive adducts
AU2013204365B2 (en) * 2006-09-07 2015-03-12 Basf Se Glyoxalation of vinylamide polymer
US9644320B2 (en) 2013-09-09 2017-05-09 Basf Se High molecular weight and high cationic charge glyoxalated polyacrylamide copolymers and their methods of manufacture and use
US9951475B2 (en) * 2014-01-16 2018-04-24 Ecolab Usa Inc. Wet end chemicals for dry end strength in paper
US10145067B2 (en) 2007-09-12 2018-12-04 Ecolab Usa Inc. Method of improving dewatering efficiency, increasing sheet wet web strength, increasing sheet wet strength and enhancing filler retention in papermaking
CN115516030A (zh) * 2020-03-18 2022-12-23 凯米拉公司 用于增加湿强度和干强度的组合物和方法

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3549568A (en) * 1968-05-21 1970-12-22 American Cyanamid Co Aqueous starch-pigment paper coating compositions containing polyacrylamide-glyoxal latent insolubilizer
US3556932A (en) * 1965-07-12 1971-01-19 American Cyanamid Co Water-soluble,ionic,glyoxylated,vinylamide,wet-strength resin and paper made therewith
US4217425A (en) * 1978-11-06 1980-08-12 Nalco Chemical Company Paper fiber additive containing polyacrylamide blended with glyoxal and polymeric diallyldimethyl ammonium chloride as a cationic regulator
US4544609A (en) * 1984-09-12 1985-10-01 Sun Chemical Corporation Compounds and their use as insolubilizers for binders for paper coating compositions
US5118474A (en) * 1988-09-19 1992-06-02 Vitaly Rogalsky Laboratory pipet
US5232553A (en) * 1992-01-24 1993-08-03 Air Products And Chemicals, Inc. Fines retention in papermaking with amine functional polymers
US5638284A (en) * 1994-05-18 1997-06-10 Eka Nobel Ab Method of quantifying the wet strength of paper
US6176972B1 (en) * 1996-12-23 2001-01-23 Fort James Corporation Hydrophilic, humectant, soft, pliable, absorbent paper having wet strength agents and method for its manufacture
US20040040683A1 (en) * 1998-06-04 2004-03-04 Snf Sa Paper and paperboard production process and corresponding novel retention and drainage aids, and papers and paperboards thus obtained
US6824648B2 (en) * 1998-06-12 2004-11-30 Fort James Corporation Method of making a paper web having a high internal void volume of secondary fibers and a product made by the process

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3556932A (en) * 1965-07-12 1971-01-19 American Cyanamid Co Water-soluble,ionic,glyoxylated,vinylamide,wet-strength resin and paper made therewith
US3549568A (en) * 1968-05-21 1970-12-22 American Cyanamid Co Aqueous starch-pigment paper coating compositions containing polyacrylamide-glyoxal latent insolubilizer
US4217425A (en) * 1978-11-06 1980-08-12 Nalco Chemical Company Paper fiber additive containing polyacrylamide blended with glyoxal and polymeric diallyldimethyl ammonium chloride as a cationic regulator
US4544609A (en) * 1984-09-12 1985-10-01 Sun Chemical Corporation Compounds and their use as insolubilizers for binders for paper coating compositions
US5118474A (en) * 1988-09-19 1992-06-02 Vitaly Rogalsky Laboratory pipet
US5232553A (en) * 1992-01-24 1993-08-03 Air Products And Chemicals, Inc. Fines retention in papermaking with amine functional polymers
US5638284A (en) * 1994-05-18 1997-06-10 Eka Nobel Ab Method of quantifying the wet strength of paper
US6176972B1 (en) * 1996-12-23 2001-01-23 Fort James Corporation Hydrophilic, humectant, soft, pliable, absorbent paper having wet strength agents and method for its manufacture
US20040040683A1 (en) * 1998-06-04 2004-03-04 Snf Sa Paper and paperboard production process and corresponding novel retention and drainage aids, and papers and paperboards thus obtained
US6824648B2 (en) * 1998-06-12 2004-11-30 Fort James Corporation Method of making a paper web having a high internal void volume of secondary fibers and a product made by the process

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7589153B2 (en) * 2005-05-25 2009-09-15 Georgia-Pacific Chemicals Llc Glyoxalated inter-copolymers with high and adjustable charge density
US20060270801A1 (en) * 2005-05-25 2006-11-30 Georgia-Pacific Resins, Inc. Glyoxalated inter-copolymers with high and adjustable charge density
US8197640B2 (en) * 2006-07-21 2012-06-12 Bercen, Inc. Paper making process using cationic polyacrylamides and crosslinking compositions for use in same
US20080216979A1 (en) * 2006-07-21 2008-09-11 Bercen Incorporated Paper making process using cationic polyacrylamides and crosslinking compositions for use in same
KR101598388B1 (ko) * 2006-09-07 2016-03-02 바스프 에스이 비닐아미드 중합체의 글리옥살화
US8222343B2 (en) 2006-09-07 2012-07-17 Basf Se Glyoxalation of vinylamide polymer
US20110083821A1 (en) * 2006-09-07 2011-04-14 Wright Matthew D Glyoxalation of vinylamide polymer
EP3130615A1 (fr) * 2006-09-07 2017-02-15 Basf Se Glyoxalation de polymère de vinylamide
CN102408519A (zh) * 2006-09-07 2012-04-11 西巴控股有限公司 乙烯基酰胺聚合物的乙二醛化
WO2008028865A3 (fr) * 2006-09-07 2008-08-28 Ciba Holding Inc Glyoxalation d'un polymère de vinylamide
EP2386579A3 (fr) * 2006-09-07 2012-06-13 Basf Se Glyoxalation de polymère de vinylamide
US20080064819A1 (en) * 2006-09-07 2008-03-13 Wright Matthew D Glyoxalation of vinylamide polymer
AU2013204365C1 (en) * 2006-09-07 2015-07-23 Basf Se Glyoxalation of vinylamide polymer
KR20140034325A (ko) * 2006-09-07 2014-03-19 바스프 에스이 비닐아미드 중합체의 글리옥살화
US8703847B2 (en) 2006-09-07 2014-04-22 Basf Se Glyoxalation of vinylamide polymer
US7875676B2 (en) 2006-09-07 2011-01-25 Ciba Specialty Chemicals Corporation Glyoxalation of vinylamide polymer
AU2013204365B2 (en) * 2006-09-07 2015-03-12 Basf Se Glyoxalation of vinylamide polymer
US10145067B2 (en) 2007-09-12 2018-12-04 Ecolab Usa Inc. Method of improving dewatering efficiency, increasing sheet wet web strength, increasing sheet wet strength and enhancing filler retention in papermaking
US8299180B2 (en) 2007-11-05 2012-10-30 Basf Se Glyoxalated N-vinylamine
US20110224374A1 (en) * 2007-11-05 2011-09-15 Basf Se Glyoxalated n-vinylamine
US8920606B2 (en) 2011-12-06 2014-12-30 Basf Se Preparation of polyvinylamide cellulose reactive adducts
US9879381B2 (en) 2011-12-06 2018-01-30 Basf Se Preparation of polyvinylamide cellulose reactive adducts
US9644320B2 (en) 2013-09-09 2017-05-09 Basf Se High molecular weight and high cationic charge glyoxalated polyacrylamide copolymers and their methods of manufacture and use
US9951475B2 (en) * 2014-01-16 2018-04-24 Ecolab Usa Inc. Wet end chemicals for dry end strength in paper
CN115516030A (zh) * 2020-03-18 2022-12-23 凯米拉公司 用于增加湿强度和干强度的组合物和方法

Also Published As

Publication number Publication date
WO2006081183A3 (fr) 2007-10-11
WO2006081183A2 (fr) 2006-08-03

Similar Documents

Publication Publication Date Title
US4210490A (en) Method of manufacturing paper or cardboard products
CN101778873B (zh) 高固体含量的乙二醛化的聚丙烯酰胺
EP0960236B1 (fr) Remplissage de lumiere de fibres cellulosiques par une charge minerale en vue de la fabrication de papier
AU645074B2 (en) Pre-treatment of filler with cationic ketene dimer
EP0723047A2 (fr) Amélioration de la résistance du papier fait à partir de pâte des composés carboxyl tensioactifs
CN106715796A (zh) 施胶组合物，其用途以及用于生产纸、纸板或其类似物的方法
CN102666987A (zh) 生产纸张的方法
NO174724B (no) Fremgangsmaate for fremstilling av papir og papp
MXPA03000790A (es) Un proceso para la produccion de papel.
EP0986672B1 (fr) Usage de polymeres dendrimeres pour la production de papier et de carton
US20060162886A1 (en) Process for improving dry strength and drainage of paper and paperboard
EP2334871B1 (fr) Procédé de fabrication de papier et de carton par utilisation d'endo-bêta-1,4-glucanases en tant qu'agent d'égouttage
US6200416B1 (en) Recycled paper production process which incorporates carbon dioxide
US2969302A (en) Method of making paper
CN113195827B (zh) 用于生产纸或板的方法及其产品
US5837100A (en) Use of blends of dispersion polymers and coagulants for coated broke treatment
PL215499B1 (pl) Wodna kompozycja zawierajaca krzemionke, sposób wytwarzania wodnej kompozycji zawierajacej krzemionke i sposób wytwarzania papieru
CN111472198B (zh) 吸管底纸的制作方法、吸管底纸以及纸吸管
US11453979B2 (en) Paper strength improving composition, manufacture thereof and use in paper making
Kumar et al. Production of advanced fibrillated cellulosic material from wheat straw by refining process to improve paper quality
US7094319B2 (en) Additive for paper making
Vivero et al. Alessio Nativitati
AU744781B2 (en) Use of blends of dispersion polymers and coagulants for coated broke treatment
GB1581548A (en) Manufacture of paper or cardboard
EP0893538A1 (fr) Utilisation de mélanges de polymères en dispersion et de coagulants dans la fabrication du papier

Legal Events

Date Code Title Description
AS Assignment

Owner name: PARADIGM CHEMICAL & CONSULTING, LLC, GEORGIA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SMITH, WILLIAM E.;MEIER, JEFFREY J.;REEL/FRAME:017506/0018

Effective date: 20050627

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION