CN100379808C - Degrasive starchy composition containing a cationic starchy material and use thereof - Google Patents
Degrasive starchy composition containing a cationic starchy material and use thereof Download PDFInfo
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- CN100379808C CN100379808C CNB2005101084880A CN200510108488A CN100379808C CN 100379808 C CN100379808 C CN 100379808C CN B2005101084880 A CNB2005101084880 A CN B2005101084880A CN 200510108488 A CN200510108488 A CN 200510108488A CN 100379808 C CN100379808 C CN 100379808C
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B31/00—Preparation of derivatives of starch
- C08B31/08—Ethers
- C08B31/12—Ethers having alkyl or cycloalkyl radicals substituted by heteroatoms, e.g. hydroxyalkyl or carboxyalkyl starch
- C08B31/125—Ethers having alkyl or cycloalkyl radicals substituted by heteroatoms, e.g. hydroxyalkyl or carboxyalkyl starch having a substituent containing at least one nitrogen atom, e.g. cationic 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
- 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
- D21H21/16—Sizing or water-repelling agents
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Polymers & Plastics (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Materials Engineering (AREA)
- Biochemistry (AREA)
- Hydrology & Water Resources (AREA)
- Health & Medical Sciences (AREA)
- Water Supply & Treatment (AREA)
- Paper (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Sanitary Thin Papers (AREA)
Abstract
The invention concerns the use, as paper-making additive other than a standard mass additive or water treatment additive, of a starchy composition containing at least a cationic starch material. The invention is characterised in that said composition has: a fixed nitrogen proportion not more than 2 %, preferably between 0.1 and 1.9 %, said percentages being expressed in dry weight relative to the composition dry weight, and a viscosity, determined in accordance with a test A, of not more than 1600 mPa.s, preferably between 5 and 1500 mPa.s. Some of the starchy compositions, selected on the basis of their fixed nitrogen proportion and their viscosity, are also useful in numerous other fields of application, and in particular as mass additives in paper-making.
Description
The application is that international filing date is June 11 calendar year 2001, international application no is PCT/FR01/01801, the China national application number is 01812906.4, and denomination of invention is divided an application for the application of " starch composites that contains selected cationic starch material is in the application aspect papermaking or the non-papermaking ".
Technical field
Theme of the present invention be about the starch composites that contains the cationic starch substance that special fixed nitrogen level and viscosity arranged beyond the standard quality additive additive for paper making or the application aspect the Treatment of Industrial Water additive.
It also relates to the method for making described starch composites.
It relates at last, and as a kind of infant industry product, the cationic starch material of this type of starch composites is through selecting, so described composition also can be particularly useful as the standard quality additive.
Background technology
With regard to purpose of the present invention, " standard quality additive " should be understood that any composition, and especially, it can be used for:
The wire part of-paper machine, and
-separately and directly in order to improve and can to improve the confining force of fiber and/or filler, the dehydration and the physical property of paper.
Cationic starch material has description as the standard application of quality additive in following patent, for example, BE 626,712, EP 139,597, EP 603,727, WO 97/46591 and JP 11-12979 (summary).
Usually, the standard quality additive is used in the technician who is proficient in this technology at first and is called in the container of " machine chest ", and finally reaches suitable level before the technician who is proficient in this technology is called the container of paper machine of " head box ".
In the mode of unusual standard, the quality additive is used in and is called in the composition that dilutes fibre pulp, and the content of its suspended matter mostly is 20g/l usually most.
" additive for paper making beyond the standard quality additive " is meant, any composition that except standard quality additive above-mentioned, can in a kind of papermaking is used, use at least, and/or, any composition that at least can a kind of horizontal application except the top level of when introducing the standard quality additive, mentioning.
Additive for paper making beyond the standard quality additive can be used on especially:
-machine chest or its upstream level for example, on the technician who is proficient in this technology is called any one level in the container of " pulping engine ", " tempering tank " or " broken groove ", are used after leaving pulping engine even immediately, and/or
-on the level of the equipment that forms paper, and/or
-form the downstream of devices at these paper, particularly on the level of wrinkling, smooth or apparatus for coating, perhaps more generally be, on the level of where managing equipment in office, for example spraying or coating, before the processing, it is about 60% that the water content of a piece of paper is less than, and/or
-contain in manufacturing on the level of additive composition for paper making of active substance of non-starch property.
Summary of the invention
With regard to purpose of the present invention, any composition that provides with solid shape, aqueous or paste (for example free-pouring Powdered, water-soluble aqueous, emulsus or glue) should be provided especially " standard quality additive beyond additive for paper making ", it can particularly be contained in the material that anion characteristic is arranged in the current and/or in the paper making equipment effectively as the reagent that reduces unfavorable material.
In addition, it will also be understood that into any in making tackiness agent effective composition, this composition is used to papermaking, especially as the protective material of described reagent.
With regard to purpose of the present invention, " Treatment of Industrial Water additive " is interpreted as being meant especially any useful composition, particularly purify and/or purified reagent as water, water herein comes from people or industrial activity or for described movable the use, such as the water that uses for the human or animal, the waste water in weaving and leather industry, papermaking and paperboard industry, mining industry, agricultural-food primary industry and slaughterhouse.
In above-mentioned all Application Areass except the quality additive, the use of composition is normally based on natural or synthetic polymkeric substance, especially cationic polymers.These may be particularly including following described cationic starch material:
-patent EP 626,022 and CA 2,160,103 relate to them as the application, particularly anionic species that reduce the reagent of contained unfavorable material in the papermaking flow process,
-patent WO 97/35068 and WO 99/18288 relate to their application as the reagent of protecting the sizing composition that uses in papermaking, and
-patent US 5,543,056 and US 5,236,598 relate to them as the Application of Additives of handling process water.
EP patent 626,022 points out that as the reagent that reduces unfavorable material in papermaking current journey, its electric density must be very high when using cationic starch, is generally 1.5-3.5meqv/g, is preferably 2-3meqv/g.About 2.1%-4.9% that these scopes and cationic starch are contained, the total nitrogen level that is preferably about 2.8%-4.2% (dry weight/dry weight) is consistent.Describe the manufacture method of the cationic starch that is used for this purpose in the embodiments of the invention, comprised the plant origin of the starch of testing.
Yet, consider required cationic level, clearly, in the industry stage, this cationic starch can only be in the preparation of gluing stage, as described in No. 95/18157 patent application of WO of announcing with same Applicant.
The embodiment of this specification sheets has looked forward to the manufacturing of high-cation potato starch slurry, it is characterized by substitution value (" DS ") is 0.72 and 0.75, this comes from highly spissated reaction medium, feature also has the content of dry-matter (" DM ") to be higher than 50%, and this wherein has half to be provided separately by cationic reagent (" Raisicat 65 ") approximately.
As described in embodiment, in fact the manufacturing of this class high-cation and highly spissated composition comprises, uses the step of hydrogen peroxide oxidation potato starch in advance.
Yet, no matter be inherent or in application process, this slurry has a large amount of shortcomings.
At first, as the applicant to by above-mentioned patent EP 626,022 and the owner of WO 95/18157 with the title product sold of " RAIFIX " analyze confirmed like that, the slurry of these high-cations has relatively low intrinsic nitrogen level, usually less than 65%.In this based composition, this will cause the residual volume of cationoid reaction thing and/or its hydrolysate very high, and this has just stoped their true effectiveness as the reagent of removing unfavorable material (especially negatively charged ion and the material that occurs) in the papermaking flow process.
In addition, the cationic nitrogenous reactant of this partial fixing is difficult to as handling process water these slurries, particularly for the additive of the water of human or animal's use.
In addition, the high pH (usually above 9) of these slurries may bring safety and corrosive problem (this is a manufacturing processed institute inherent) when handling and using these basic prod.
At last, this intrinsiccharacteristic of these slurries makes them be difficult to usually be competent at:
-because they have higher relatively viscosity, need dilute operation and introduce water-bearing media then, this may make the effectiveness of these slurries reduce or be inconsistent, but simultaneously, as a kind of consequence, the effectiveness of the starch that uses in the paper-making fibre material is reduced or inconsistent, and/or
-because their high-hydrophilic need carry out drying or pre-gelled processing to obtain powder or thin slice, need subsequently described powder or thin slice rehydration.
In fact, be exaggerated, do not illustrated among above-mentioned patent EP 626,022 and the WO 95/18157 to use at all and make or use these groups with cationic form for these shortcomings of starch base of cereal source (especially corn, wheat).
Patent WO 99/18288 with the same Applicant application in fact also is like this, its same manufacturing that requires the starch of high-cation level (DS is preferably between 0.50 and 0.80) is used for the rosin milk of gluing paper between 0.15-1.30.Point out that wherein total nitrogen level of these cationic starches is preferably between 3%-5%, it is desirable to 3.5%, this series products that may obtain according to method described in the above-mentioned patent WO 95/18157 is advantageous.
Only enumerated total nitrogen level in this specification sheets and be 3.5% potato starch.
In same Application Areas, that is, make adhesive compound, patent WO 97/35068 has also mentioned the application that has the high cationic starch of following character simultaneously:
-DS is preferably between 0.4 and 1.0 greater than 0.1, and
-electric density between 0.5-3.5meqv/g, be preferably 1.0 and 2.0meqv/g between.
Therefore, the DS of the positively charged ion goods that use with degraded or liquid form in the patent working example of the present invention was 0.48 (intrinsic in theory nitrogen level is about 2.7%-2.8%), and electric density is 1.32meqv/g.Yet do not stipulate for plant character and preparation (especially degraded) condition.In the process field of process water, the cationic starch of DS between 0.01-0.2 used in 5,236, No. 598 suggestions of United States Patent (USP) recently, that is to say the DS that significantly is lower than in the above-mentioned patent.Yet this cationic starch need combine with the polyacrylamide of hydrolysis with performance in the application of being considered (handling the coating waste material) and render a service.In addition, the author only for example understands the positively charged ion potato starch (HI-CAT that the applicant sells with the non-degraded of polyacrylamide bonded
142), this be because, according to their opinion:
1) starch base except potato starch, especially W-Gum, and improper (cf. hurdle 4,1.62-66), and
2) molecular weight of cationic starch be not critical parameter (cf. hurdle 4,1.44-45).
In the specific area of processing drinking water, also advise recently in mixture, so-called elementary condensing agent (as chitosan) or cationic starch being combined with clay, the latter occurs with larger proportion in described mixture.
The cationic charge of the elementary condensing agent of being tested (especially cationic starch) is not specially mentioned.Yet, recall chitosan have high electric density (cf. hurdle 5,1.41-45).Consider the application of elementary condensing agent (especially cationic starch), do not remake more explanation for its possible degraded.
On the other hand, the author recommends the example of alkaline kation starch (potato starch) as unique cationic starch here once more.
The result of above-mentioned test is up to this point also not have the reagent that following some advantage is arranged simultaneously:
-can be effectively as the reagent that reduces unfavorable material, particularly negatively charged ion and the material that in the papermaking flow process, occurs and/or be retained in material in the paper making equipment, and (if possible) more generally be as the additive for paper making beyond the standard quality additive
-effectively as the Treatment of Industrial Water additive,
-can be used in other field arbitrarily, comprise extensive papermaking,
-use with pasty state (dilution or undiluted), aq suspension shape or solid shape (as powder or thin slice),
-obtain by any starch base, comprise wheat starch, and
-obtain by standard fabrication methods with simple and inexpensive method, especially with the starch substance cationization.
Applicant company finds that this reagent can be present in the starch composites that selected characteristic is arranged on fixed nitrogen level and viscosity behind big quantity research.
More accurately, theme of the present invention be contain at least a cationic starch material starch composites beyond the standard quality additive additive for paper making or the application aspect the water treatment additive, described composition is characterised in that:
-have mostly to be 2% fixed nitrogen level most, be preferably between 0.1%-1.9%, these ratios are the dry weights with respect to the composition dry weight, and
-the viscosity determined by test A mostly is 1600mPa.s most, be preferably 5 and 1500mPa.s between.
No matter described composition is aqueous, pasty state or solid shape, can detect its viscosity with test A.
Comprising measuring (with the method for any standard, in the technician's who is proficient in this technology limit of power, carry out) dry-matter (DM) content of described composition and, according to situation, with the described composition of distilled water diluting, or with any suitable method (can not obviously change the molecular-weight average of its contained cationic starch material) that it is concentrated, this is to transfer to 20% for the DM with described composition.
Subsequently, under the situation of 25 ℃ and 20 rev/mins, measure the brookfield viscosity of the composition that contains 20%DM of gained with known method.
According to a kind of variant, starch composites provides with solid shape (for example being free-pouring Powdered) or aqueous (for example pasty state) as described in the present invention, and its DM is 5%-65%, is preferably 10%-50%.The content of dry-matter is favourable between 15%-45%, is preferably between 18%-40%.
It is emphasized that, at least a contained cationic starch material may be got rid of or be got rid of substantially to the content of the dry-matter of composition as described in the present invention, or do not contain other material of cationization gained, but also may contain one or more other components, be preferably positively charged ion product, sterilant and other papermaking or the non-papermaking active substance of the starch or derivatives thereof that is selected from negatively charged ion or nonionic characteristic, hydrogenant sugar (as hydrogenant starch hydrolysate and sorbyl alcohol, they can by cationization), non-starch substance.
The preferred variant according to the present invention, the level of the fixed nitrogen of starch composites is (dry weight/dry weight) between 0.2% and 1.5%.More advantageously, the fixed nitrogen level is (dry weight/dry weight) between 0.4% and 1.5%, preferably between 0.5% and 1.5% (dry weight/dry weight).。
Strange and undesirablely be, especially at above-mentioned patent EP 626, in 022, applicant company is found really, have that the fixed nitrogen level of same special adhesive characteristics is relatively low (promptly mostly to be most 2%, be preferably between 0.1% and 1.9%, preferably between 0.1% and 1.5%) starch composites can constitute very effective additive for paper making, especially be contained in the papermaking flow process and/or be retained in the reagent of the unfavorable material in the paper making equipment as minimizing.
This have an advantage of the starch composites of relatively low fixed nitrogen level to be, it can simply and effectively be obtained by multiple variant.The cationization step can as (for example) patent EP 139,597 described water-bearing medias or as patent FR 2,434,821 described dry phases or in solvent phase, carry out, also allowing has positive electricity character in conjunction with one or more on any starch substance in being contained in described composition, perhaps even the nitrogen-containing group of many positive electricity character arranged.
It is emphasized that and can may comprise the both sexes product by the cationic starch material that the present invention uses, in other words, this product has positively charged ion and negatively charged ion simultaneously.Anion substituent can (for example) be selected from phosphoric acid salt, phosphonate, vitriol, sulfoalkyl, carboxyl, carboxyalkyl and sulphur carboxylic group.
With regard to purpose of the present invention, " starch substance " is interpreted as the starch in all natural or hybridization sources, comprises the starch through genetic mutation or genetic engineering acquisition.Especially, described starch may not only come from potato, also may come from the potato (glutinous property potato) that high amylopectin starch content is arranged, corn, wheat, the wheat of high amylopectin starch content (glutinous property wheat), the corn of high amylopectin starch content (glutinous corn), the corn of high amylose content, rice, pea, barley or cassava, can cut or fractionation, or the technician who obtains to be proficient in this technology is called the amylose starch of wheat starch " A " and wheat starch " B ", amylopectin, the particle cut, and the mixture of forming by any difference in the said products at least, for example by at least a tuber crops starch (especially potato starch) and at least a cereal starch (wheat starch " A " especially, wheat starch " B ", W-Gum, waxy corn starch) or the mixtures formed of two kinds of cereal starchs.Can comprise that also flour or other contain the mixture of vegetable starch (class) and protein (class) by the starch ingredients that the present invention uses, wherein " starch " component is main.
Also comprise starch derivative, it need or be handled through at least a extra modification after this before the cationization step, with its while, and this will describe in addition.
Especially, this may comprise by the starch hydrolysis derivative, especially conversion coefficient (" DE ") mostly be 5 maltodextrin most, as with GLUCIDEX
2 title is by applicant's product sold, in the context of the present invention, it behind hydrolysing step by cationization.
As mentioned above, the viscosity of starch composites (being determined by above-mentioned test A) mostly is 1600mPa.s most used according to the present invention, be preferably 5 and 1500mPa.s between.
This viscosity is very low, and need modify processing to the starch substance in the described composition usually, degradation treatment especially, as pointing out, this can be before the cationization step, with its simultaneously or after this, carry out.
Can carry out this processing with any method, particularly use chemical process, enzyme process and/or physical method, these methods are be proficient in this technology known to the skilled, and can directly or indirectly make the starch composites product have the determined viscosity by test A.According to character, quantity or form, temperature of reaction and the time of modifying method, the water content of reaction medium, the character (starch substance is by cationization or not by cationization) of matrix etc., can be continuously or in batches, handle with a step or a plurality of step.Especially, this may be included in water-bearing media or dry liquefaction processing of carrying out with chemistry route in mutually, those that mention or describe just as institute in the patent EP 902,037 of applicant's name application.
Favourable, can also comprise enzyme liquefaction processing (also being called enzyme glycolysis or liquefaction), this carries out possibly after a while, and is for example, pointed among the patent FR 2,149,640 according to applicant's announcement.
These enzyme methods comprise heat-resisting or heat labile enzyme, the enzyme of bacterium, fungi or other biological α-Dian Fenmei type.
In other advantageous method, this can also be included in the water-bearing media, by being selected from q enzyme (EC2.4.1.18) and Maltose 4-glucosyltransferase or title " CGT enzyme " enzyme (EC.4.1.19), and the processing that it can effectively be transformed cationic starch material.Especially, q enzyme can contain starch or the glycogen q enzyme of separation from algae or bacterium, as all patent WO 00/18893 of applicant and those application described in the WO 00/66633.
Applicant company is found, compares with those starch substances of handling with α-Dian Fenmei, is further improved usually in the stability of the cationic starch material of handling with q enzyme before the cationization, therebetween or later on during at storage.Do not wish to stick to any theory, the applicant think this significant result be because (to small part be because), make it possible to obtain the starch substance of the hydrolysis of homogeneous more with the q enzyme processing, promptly, especially, compare with the product of handling gained through α-Dian Fenmei, the distribution of the molecular weight of gained carbohydrate on spherical Gaussian curve be rule, symmetrical and narrower more more.Be preferably after the cationization step and handle, in fact, merit attention and it is shocking that the appearance of the cation group that size is relatively large does not hinder the transfer of this kind of enzyme to oligonucleotide chain or polysaccharide chain with q enzyme.
If necessary, the use of thermostable enzyme makes enzyme liquefaction to carry out under 90-100 ℃ temperature, and this condition is to good colloidal solution particularly advantageous, the especially solvability of quality bills of materials and the stability of viscosity.
For non-restrictive example, modify to handle and to comprise the acidifying approach and enzymatic pathway is handled with dextrinization or combine with the thermal transition processing and to liquefy.
All methods above-mentioned all are used to be included in or not to be included on the starch substance in the composition as described in the present invention (cationization or not cationization), and like this, the average molecular wt of described material is usually less than 10
7Dalton is preferably less than 5 * 10
6Dalton.
Advantageously, average molecular wt is 10
4With 4 * 10
6Between the dalton.
Applicant company is observed really, the application of the cationic starch material of the degraded of molecular weight in above-mentioned scope can not only guarantee that composition is very effective as described in the present invention, especially as additive for paper making or Treatment of Industrial Water additive beyond the standard quality additive, and make its handling, storing, transport, pump into/go out and introduce/when going out applicating medium, such as (for example) papermaking flow process and equipment, tackiness agent emulsion, wrinkling, surfacing and coating composition, ore deposit suspension or consumption water, showed extraordinary stability
According to the another kind of variant of the composition that can use by the present invention, its electric density index (" CDI ") is preferably greater than 650 greater than 600, and above-mentioned value is definite with following formula:
As described in following examples 1, electric density is measured on the particular electrical charge carrier.
Total nitrogen level is measured according to standard K JELDAHL method, and represents with the dry weight of relative composition dry weight.
Above-mentioned CDI value has reflected that the nitrogen-containing group that provides is attached to the effectiveness on the starch substance contained in the described composition in the cationization step, and has therefore increased its electric density.
Applicant company finds, as described in the present invention the CDI value of composition between 660 and 800 to being very favorable as additive for paper making or Treatment of Industrial Water additive.
This CDI value apparently higher than the CDI value of prior art products (usually less than 600, even less than 500), this is because unconjugated nitrogenous substances (cationoid reaction thing and hydrolysate thereof) is a large amount of in these products occurs, and this makes them to utilize or difficultly utilizes (as the processing of tap water) in some applications.
Especially, this situation of composition appears in above-mentioned " RAIFIX " scope, but the starch that also appears at the cited high-cation of above-mentioned patent WO 97/35068 (it is reported, its DS is 0.48, be that theoretical fixed nitrogen level is about 2.7%-2.8% (dry weight/dry weight), electric density is 1.32meqv/g, i.e. 1320 μ eqv/g) in.Therefore, the CDI value of this product is about 1320/4, and promptly about 330.
The pH value of composition may be high to (maybe may surpass) 10 as described in the present invention, but according to another preferred variant, the pH of starch composites is less than 9 as described in the present invention, between 4 and 8.5, described pH is with standard method, measures on the composition that DM is transferred to (necessary words) 20% (needed according to the above-mentioned test A perparation of specimen) preferably.
These pH scopes can definitely be distinguished described composition and the prior art products of " RAIFIX " scope equally, and prior art products alkalescence is big so may be bigger to the harm and the corrodibility of people or equipment.Therefore when putting into practice, these pH scopes also can make people can look forward to out the Application Areas except the existing application of described prior art products.
Therefore, there is a kind of new method, it can effectively be used as standard quality additive additive for paper making and Treatment of Industrial Water additive in addition, especially be contained in the papermaking flow process as minimizing and/or be retained in the reagent of the unfavorable material in the paper making equipment, so that papermaking or as the additive in the preparation of paper adhesive compound.
In addition, viewed as the applicant, this method is particularly suitable for:
-when preparation is used for making goffered paper, surface and was coated with the composition of the paper of (chalk) powder in vain or coating paper as additive,
-when preparation contains the composition of white dyes, staining agent and/or synthetic polymer (as polyacrylamide or polyvinyl lactam) as additive, described composition itself can be used as the additive for paper making beyond the standard quality additive.
The proportion of synthetic polymer/cationic starch material is between 1/100 and 100/1, and described ratio is the dry weight with synthetic polymer on the one hand, is to represent with the dry weight of cationic starch material on the other hand.
Advantageously, especially, this method (with further illustration) comprises aforesaid starch composites, it is characterized by:
-fixed nitrogen level between 0.4% and 1.5% (dry weight/dry weight), and
-the viscosity determined by described test A 10 and 800mPa.s between.
Especially, applicant company finds that on the one hand, nitrogen level is favourable especially between 0.6% and 1.5% between 0.5% and 1.5%, and on the other hand, viscosity is favourable between 50 to 700mPa.s scope.
Curiously, it is found that, with same fixed nitrogen level is arranged as described in the present invention but viscosity is higher, electric density is bigger composition is compared, through liquefaction, viscosity in this preferable range (according to test A), can obtain by the composition that the present invention uses.
In addition, on particularly advantageous meaning, dry-matter (DM) content of the composition that can use by the present invention is preferably between 18% and 40% between 15% and 45%.
The common idea of the present invention also be based on the fixed nitrogen level mostly be most 2% and molecular-weight average less than 10
7The use of daltonian cationic starch material is so that make and the consistent starch composites of above-mentioned arbitrary variant.
Advantageously, described cationic starch material is before cationization, with at least a q enzyme (EC 2.4.1.18) and Maltose 4-glucosyltransferase or title " CGT enzyme " heat-resisting or heat labile enzyme (EC.4.1.19) of being selected from starch substance is handled acquisition therebetween and/or later on, is preferably at cationization and handles later on.
The common idea of the present invention is also based on the use of the cationic starch material that following characteristic is arranged:
-fixed nitrogen level mostly is 2% most,
-molecular-weight average is less than 10
7Dalton,
-according to test A, viscosity mostly is 1600mPa.s most, and
-CDI index is greater than 600,
With manufacturing can be used as beyond the standard quality additive additive for paper making or as the starch composites of Treatment of Industrial Water additive.
Applicant company is also found, in the above-mentioned starch composites that can use by the present invention, having some to be used in also is favourable in other Application Areas, especially with the active substance that can be used in the extensive papermaking, as tackiness agent, synthetic polymer (class), white dyes (class) and/or staining agent (class), use together.
This binding substances can be formed in the same quality additive, perhaps individually, simultaneously or do not use the component of this composition simultaneously.
Especially, in this type of binding substances, the proportion of synthetic binding substances (class) and starch substance (class) is between 1/100 and 100/1 (dry weight/dry weight).
According to another variant, composition is characterised in that as described in the present invention, and its fixed nitrogen level is selected between 0.5% and 1.5%, especially between 0.6% and 1.5%, simultaneously, the viscosity of determining by test A 10 and 800mPa.s between select, especially 50 with regard to 700mPa.s between.
The pH value of composition may be high to (maybe may surpass) 10 as described in the present invention.Yet, be preferably less than 9, especially between 4 and 8.5, and its electric density index CDI is greater than 600.
Understanding according to the applicant, this composition thereby optionally constitute new product, especially, its industrial value is that they can obtain by the method for simple and inexpensive from any starch substance, and can be used in all common needs safely and effectively uses in the application of cationic starch material, be used in papermaking or other field (comprising the application of extensive papermaking and water treatment aspect), perhaps be used in such as in the manufacturing as the composition that contains white dyes (use about this class material still is unknown).
As mentioning; described starch composites has formed binding substances with any ratio in use between hydrolysis cationic starch material and one or more other materials; especially combine described cationic starch material and the active substance that is selected from tackiness agent, white dyes, staining agent and synthetic binding substances, formed (extensive or non-extensive) additive for paper making or water treatment additive.
In addition, viewed as the applicant, the hydrolysis of cationic starch material be preferably in when described material with additive in other active substance (as polyacrylamide) carry out when contacting.
According to another variant; described starch composites can only contain the cationic starch material of the hydrolysis of picture active substance and so on; and can with one or more other contain as mentioned above that (the extensive or non-extensive) additive for paper making or the water treatment additive of other active substance combine, these additives can use separately, use simultaneously or use in addition.
For example, starch composites can followingly use as described in the present invention:
-at the same additive of the wire part that is used for papermaking process, be used in combination with the active substance of polyacrylamide and so on,
-be used for extensive papermaking or, be used in combination with the active substance of white dyes or staining agent and so at the same additive that paper is carried out use when surface treatment or coating are handled,
-being used in combination with polyacrylamide handling process water, polyacrylamide is by separately, simultaneously or introduce described starch composites in addition,
-be used in combination with white dyes and/or staining agent at the wire part of paper-making process, these materials at the same position in loop (for example are, on the pulping engine level) or at the different positions in loop (for example, on the pulping engine level, add white dyes, add starch composites in its downstream) by separately, simultaneously or introduce in addition.
Thus, theme of the present invention still is about the use of aforesaid starch composites, in view of the above, described starch composites while or other and at least a other active substance, be preferably and be selected from tackiness agent, white dyes, staining agent and synthetic binding substances, especially polyacrylamide or polyvinyl lactam.
Embodiment
Help by following examples will be described the present invention in further detail, and these embodiment do not make any restriction to the present invention.
Embodiment 1
As above-mentioned patent FR 2,434,821, total nitrogen level that will obtain in mutually in drying is that the potato starch of 1.48% (dry weight/dry weight) mixes, and is suspended in the cold deionized water, to obtain to contain the cationic starch emulsion of 31% dry-matter (" DM ").
Handle the various samples of described emulsion with the α-Dian Fenmei of " FUNGAMYL 800L " type of different levels.It is to carry out in the container of opening that this kind of enzyme saccharification is handled, method is in 20 minutes temperature to be increased to 95 ℃ from 20 ℃, placed 5 minutes at 95 ℃ then, purpose is to obtain brookfield viscosity (under 25 ℃, with 20 rev/mins tachometric survey) to be about the cationic starch composition that 300-3000mPa.s and DM are about 20%-22%.
In the practice, the final DM of gained colloidal solution is 21.5%.For each gained solution, measured the characteristic (dry weight with %/initial latex is represented) of following function as used degrading enzyme level:
Under-25 ℃, the brookfield viscosity during 20 rev/mins rotating speed is represented with mpa.s, and
-electric density, with the expression of the gram number (μ eqv/g) of microequivalent/solution dry weight, with " METTLERDL21 " type automatic titration device bonded " MUTEK PCD02 " type point charge meter on measure.
The gained result is as follows:
| Enzyme level (%) | Viscosity (mpa.s) | Electric density (μ eqv/g) |
| 0 0.010 0.020 0.025 0.030 | - 2600 800 380 320 | 950 980 970 1006 1022 |
Curiously, it should be noted that along with the increase of the degree of liquefaction, electric density may obviously increase with regard to the cationic starch material that in batches liquefies through enzymatic pathway that mostly is 2% (at present with regard to about 1.5%) speech most with regard to present fixed nitrogen level.If DM is 21.5%, when sample viscosity less than 800mPa.s, its electric density maximum during especially less than 380mPa.s, if DM is transferred to 20%, correspondingly, the viscosity of being measured by test A is less than about 700mPa.s, especially less than about 330mPa.s.
In addition, applicant company is observed, and all have uncommon stability based on compositions of above-mentioned liquefaction cationic starch material when storing, and does not observe viscosity after 17 days or 4 months or the phenomenon of bringing back to life has any increase 25 ℃ of storages.
Embodiment 2
Among this embodiment, be that 1.48% positively charged ion potato starch has carried out continuous enzyme glycolysis as described in Example 1 to total nitrogen content.For this reason, in per 100 premium on currency the described enzyme of 6.7 milliliters of dissolvings with the mixture of preparation " FUNGAMYL 800L " enzyme and water.Under the following conditions cationic starch is liquefied continuously then:
The flow velocity of-water/enzyme mixture: 90l/h,
Therefore the flow velocity of-cationic starch powder: 60kg/h, contains 40% the DM of having an appointment in the product emulsion,
-the reaction times: 30 minutes,
-temperature of reaction: 60 ℃.
The activity of enzyme is repressed by the inhibition test tube 1 minute and 30 seconds by 140 ℃.Under this condition, finally having obtained DM content is the material of 26%-30%, and this is particularly advantageous because can obtain like this less than 2000mPa.s, be preferably 250 and 500mPa.s between viscosity.
In addition, especially, with regard to the composition that final DM is 28%, collect sample and measurement electric density as time passes as viscosity function.
The gained result is as follows:
| Viscosity (mpa.s) | Electric density (μ eqv/g) |
| 250 300 375 405 450 500 | 970 975 980 980 950 965 |
According to observations, with regard to the range of viscosities that at present carries out enzyme liquefaction continuously and all conform to (being 250-500mPa.s when the 28%DM), between viscosity and electric density, there is not any relation with average liquefaction.
In any case, in this embodiment, obviously, to compare with the gained charge density value, viscosity is especially suitable between 300-400mPa.s.
For its DM being transferred to 20% to conform to above-mentioned test A, can make viscosity less than 150mPa.s then this composition dilution, preferably make it between 100-130mPa.s.
Embodiment 3
In this embodiment, the present just maltodextrin GLUCIDEX that comes from waxy corn starch that sells of applicant thus
2, its derivative has been carried out cationization.Prepared to contain the aqueous solution of this derivative of 50%DM, this solution has been heated to 70-80 ℃.Need then to add respectively as above-mentioned patent FR2, the cationoid reagent of 434,821 described 40% TMAEP type and 1.5% sodium hydroxide solution, these ratios are to represent with the dry weight of dry weight/maltodextrin.
Reaction (50 ℃ of reactions 5 hours) and be neutralized to pH and be 6.7 after, just obtained DM and be 49% and viscosity be about the starch composites of 40mPa.s (DM is transferred to 20% back to be measured with the method for test A).
The fixed nitrogen level that is contained in the cationic starch material in the described composition is 1.8% (dry weight/dry weight), and this explanation has 83% the cationoid reaction thing of producing on request that the total nitrogen level (2.16%) that is provided by the cationization reactant has been provided.
Embodiment 4
In this embodiment, to compare with the character that records in the cationic starch composition of selling with the title of " RAIFIX120 " as the characteristic of the described starch composites of above-mentioned invention, this composition is used as the reagent of the unfavorable material of minimizing in the papermaking flow process and is called as " composition T ".The composition as described in the present invention that is known as composition 1,2 and 3 comes from the foregoing description 1,2 and 3 respectively.
The gained characteristic relates to dry-matter (" DM ", represent with %), pH, total nitrogen level (" total nitrogen " represented with dry weight/dry weight), fixed nitrogen level (" fixed nitrogen ", represent with % dry weight/dry weight), the brookfield viscosity (" viscosity " is represented with mpa.s) that is 20%, under 25 ℃ and 20rpm, records as DM by test A, be contained in the cationic starch material in the composition molecular-weight average (" MM ", with megadalton or 10
6D represents, detected by the size exclusion chromatography that is coupled on the light scattering detector), electric density (" CD " represents with μ eqv/g) and with the corresponding CDI index of CD/ total nitrogen ratio.
Below be the gained result:
Composition
T 1 2 3
DM 19.9 21.5 28 49
pH 11.0 5.8 5.8 7.3
Total nitrogen 4.6 1.5 1.5 2.2
Fixed nitrogen 2.5 1.2 1.2 1.8
Viscosity 2,600 220 100 40
MM 22.3 1.5 3.0 0.3
CD 2250 1022 980 1300
CDI 489 690 662 722
Total result is that composition of the present invention has higher CDI value, apparently higher than composition T.The cationization degree of composition starch contained therein material of the present invention is starkly lower than composition T starch contained therein material as described in the prior art, and the liquefaction degree is obviously than its height.
These higher CDI values (be higher than 600, even 650) illustrate that better by the nitrogen fixation that the cationization step provides, thus, the amount of nitrogenous residue and salt residue has reduced among the described composition 1-3.
Embodiment 5
With composition 5 (not according to the present invention) and above-mentioned composition 2 and 3 (according to the present invention) as reduce unfavorable material-negatively charged ion contained in water cycle (and/or in equipment), paper-making process or other situation or other (below be called as " pitch ")-reagent, compare test.
Under the present circumstances, form and to contain the original dissolving pulp (mixture of leaf and resin) that accounts for 80% weight and 20% casse paper goods in the medium of paper pulp altogether.Its concentration is about 10g/kg, and specific conductivity is about 1400 μ S/cm, and the Z electromotive force is-13.4mV, and pH is 7.7, and the electric density that records in the supernatant liquor of the filter membrane by 140 μ m is 85 μ eq/l.
The ratio (dry weight/dry weight) of composition T, 2 and 3 (its DM being transferred to 20%) with 0.3% is introduced in the described paper pulp.The time that each composition contacts with paper pulp is 5 minutes, stirs with 1000rpm simultaneously.
Without any starch composites the time, carried out single test.On the THOMAS cell, " pitch " is counted, covered cell with " water under the fabric (water under cloth) " earlier, handle and pass through the filter membrane of 30 μ m then with aforesaid method with standard method.
(" pitch " is in thousand or 10 below to have shown the Z electromotive force (" electromotive force " represented with mV), electric density (" SCD " represents with μ eq/l) of gained and the quantity of " pitch "
3/ mm
3The water meter that filters fabric shows).
| Electromotive force | SCD | Pitch | |
| No composition | -13.4 | 85 | 49.6 |
| Composition T | -3.9 | 19 | 13.6 |
| Composition 2 | -8.3 | 53 | 13.2 |
| Composition 3 | -6.2 | 48 | 16 |
These results show that composition (although its nitrogen level is relatively low) is the reagent that more effectively reduces " pitch " as described in the present invention.They are the same with composition T effective, and composition T not only difficulty make and also be easy to cationization, simultaneously very expensive, and wherein great majority all have many residues.
Especially, composition 2 especially is fit to this application.The application of arriving according to observations in addition, it can also be as the biological mud that comes from the sewage purification plant and/or the condensing agent of mineral mud, or as the reagent that purifies the paper machine machine water.
Embodiment 6
In this embodiment, studied the emulsifying property of the composition as described in the present invention 2 that provides with the pasty state form that contains 27%DM.In the described mashed prod of 100g, add the tackiness agent " FIBRAN 76 " of 13.5g, can contain the cationic starch material of 27 grams thus altogether based on alkenyl succinic anhydride (" ASA ").
Then gained sizing composition [proportion of starch substance (dry weight)/tackiness agent is 2/1] is carried out the high strength shearing treatment, promptly 20,000 rev/mins of following homogeneous 5 minutes.
" FIBRAN 76 " emulsion (" emulsion 1 ") that in 1 liter measuring bottle, gained emulsion dilution (stirring) is contained 1.35% tackiness agent then with acquisition with distilled water, with the dilution once more under identical condition of a part of emulsion 1, to obtain to contain the emulsion (" emulsion 2 ") of 0.3% tackiness agent.
Periodically observed in 54 hours, the result shows that gained emulsion 1 and emulsion 2 remain unchanged more stable and homogeneous.
Embodiment 7
In this embodiment, as described in the embodiment 4 of patent WO 00/66633, made the additive consistent with the present invention by handling cationic starch with the glycogen q enzyme.
For this purpose, the described enzyme of 150ml is dissolved in 2 liters of deionized waters to make the enzyme solution of dilution, in advance water temperature is transferred to 30 ℃ and remain on this temperature, simultaneously pH is remained between 7 and 8.
To slowly spray in the enzyme solution of described dilution with employed the same potato starch among the embodiment 1 [that is, total nitrogen level is about 1.5% (dry weight/dry weight), and the fixed nitrogen level is about 1.2% (dry weight/dry weight)] then.
After carrying out this operation, most of normal introduce make it possible to obtain described positively charged ion potato starch (concentration 110 and 120g/l between) colloidal solution, and when stirring, do not have over-drastic volumetric expansion or energy expenditure.
In this preparatory stage, temperature is carefully remained on 30 ℃, and pH is maintained between 6 and 8, is preferably between 6.5 and 7.
Under these conditions, saccharification was carried out 4 hours.
By enzymatic inactivation can be stopped this process, method is that it was kept 15 minutes down at 95 ℃.
In the practice, the DM of the colloidal solution that obtains behind these EOs is 10%, and following characteristic is arranged:
-brookfield viscosity: 50mPa.s (25 ℃-20rpm)
-electric density (CD): 922 μ eqv/g
-CDI：615
-molecular-weight average (MM): about 3.2 * 10
6Dalton
It should be noted that and just carry out having obtained relatively low viscosity with regard to the enzyme glycolysis with q enzyme at present that its value is significantly less than 300mPa.s (according to test A), this with relative higher molecular-weight average (that is, greater than 2 * 10
6Dalton) be consistent.
The stability of gained starch composites (as this or make DM be about 21.5% through concentrating) when storing is still greater than the composition by embodiment 1 gained.
Embodiment 8
In this embodiment, under same condition as described in Example 7, prepared starch composites, but following some is different:
1) total nitrogen level of potato starch is about 1.1% (dry weight/dry weight), and the fixed nitrogen level is about 1.0% (dry weight/dry weight);
2) use the saccharification of q enzyme to carry out 45 minutes (rather than 4 hours), and
3) the final DM of gained colloidal solution is 16.3% (rather than 10%).
The gained starch composites has following characteristic:
-brookfield viscosity: 625mPa.s
-electric density (CD): 716 μ eqv/g
-CDI：650
-molecular-weight average (MM): about 2.5 * 10
6Dalton
It has remarkable stability when storing.
In addition, applicant company confirms, under the test conditions of the foregoing description 5, described composition is more suitable as the reagent that minimizing is present in the unfavorable material in the papermaking flow process, above-mentioned composition makes its effectiveness that can obtain to be similar to composition 2 or 3, and at this moment, the amylose starch electromotive force is-6.4mV, charge density value (SCD) is 65 μ eq/l, and the number of " pitch " is 16.4 * 10
3/ mm
3Filter the water of fabric.
Embodiment 9
In this embodiment, studied the effectiveness of starch composites as described in the present invention with white dyes with in the binding substances that other staining agent constitutes arbitrarily as herein described.
With α-Dian Fenmei to total nitrogen level be about 1.65%, the fixed nitrogen level is about 1.5% positively charged ion potato starch and carries out enzyme glycolysis, obtained starch composites as described in the present invention thus.
The main characteristic of mashed prod below is provided:
-dry-matter (DM): 27.9%
-brookfield viscosity: 420mPa.s (25 ℃-20rpm)
-electric density (CD): 1056 μ eqv/g
-CDI: about 640
With regard to present circumstances, active substance has been introduced into weight and has formed in the roughly following paper pulp:
-20% resin kraft pulp
-60% leaf kraft pulp, and
-20% casse paper
Before described paper pulp is introduced shredder assembly, following material is introduced in the water to fill described device:
A) above-mentioned starch substance or the cationic polyacrylamide that equates with the amount of DM in the described starch composites, then,
B) white dyes of 5 times of amounts of used positively charged ion product in being about a), and the mixture of several staining agents of 2.5 times of amounts of used positively charged ion product in being about a) arbitrarily.
Introduce paper pulp and fragmentation after 30 minutes, under the help of " TECHPAP " material, just made substances content and be about 80g/m
2Paper.
Basically need they are brightened processing and fluorescence processing.
Generally speaking, the gained result shows, the starch composites that contains the enzyme glycolysis cationic starch material as described in the present invention contains competent white dyes, the amount of its white dyes equals (usually greater than) at least and by the composition of synthetic cationic polymers gained, contains coloring matter in this composition or do not have coloring matter.
Embodiment 10
In this embodiment, studied the effectiveness of starch composites (according to the present invention or not according to the present invention) in water treatment field, herein, this composition combines with synthetic condensing agent, and cationic polyacrylamide used herein " PERFORM PA 9430 " has HERCULES to sell.
For test A, B and C, based on following some tested respectively and the described polyacrylamide of starch paste bonded:
-test A: carry out containing approximately on the unhydrolysed positively charged ion potato starch of 0.64% fixed nitrogen (dry weight/dry weight), not according to the present invention,
-test B: carry out containing approximately on the positively charged ion potato starch with α-Dian Fenmeishuixie of 1.5% fixed nitrogen (dry weight/dry weight), according to the present invention, or
-test C: on the positively charged ion potato starch of q enzyme hydrolysis (fixed nitrogen: about 1.5%, dry weight/dry weight), carry out, according to the present invention.
In addition, carried out controlled trial (" test T "), this carries out being positioned on the described polyacrylamide of starch composites bonded.
To all these tests, having handled suspension content is the paper waste of 1.6g/l.
Stir collected wastewater sample immediately.Carry out following steps then:
In the time of-1 minute: starch composites is introduced (test A to C) or do not introduced in the waste water that (test T) stir, introducing speed is 0.03 °/° ° (dry weight/dry weight),
In the time of-6 minutes: introduce synthetic condensing agent (test T and A to C), speed is 0.001 °/° °, represent with commercial weight/waste water dry weight,
In the time of-7 minutes: stop to stir,
-from the 7th minute to the 9th minute: observe and decant,
In the time of-12 minutes: measure the content (" DMS " represents with g/l) of dry-matter in the supernatant liquor and the optical density(OD) (" OD ") of supernatant liquor.
Below be observed result in not according to test T of the present invention and A, and according to observed result among test B of the present invention and the C.
| DMS g/l | OD | |
| Test T test A test B test C | 0.335 0.304 0.244 0.216 | 4.6 5.0 4.4 4.3 |
These results show that starch composites according to the present invention is favourable in water treatment, when especially combining with the aggregation of picture cationic polyacrylamide and so on (comparison test B and C).
By reducing dry matter content and the optical density(OD) in the supernatant liquor, these starch composites can improve the purification to waste water very significantly, and this is than using not according to the effect of starch composites of the present invention far better (comparison test A).
The starch composites that is as the criterion and detects with the cationic starch material that is branched enzyme glycolysis in test C is with more effective after cationic polyacrylamide combines.
Embodiment 11
In this embodiment; the cationic substance of hydrolysis and cationic polyacrylamide (as STOCKHAUSEN " PRAESTOL 852BC " product with the powder type sale) are bonded in the same additive as described in the present invention, and this additive can be used in (extensive or non-extensive) papermaking or the water treatment.
With regard to present circumstances, be in contact with one another at preceding starch substance and the synthetic of making immediately of saccharification step (purpose is the hydrolysis cationic starch material), it is favourable making this binding substances like this.
Adopt and made the starch emulsion that contains 30%DM as same positively charged ion potato starch powder used among the embodiment 1, add 5% described cationic polyacrylamide then in suspension, this ratio is to represent with the ratio of starch dry weight with the weight of commercial polypropylene acid amides.
The α-Dian Fenmei that adds 0.15 °/° ° of " FUNGAMYL 800L " type is then represented with the weight of the commodity of corresponding starch dry weight.
Carry out enzyme glycolysis then in open containers, method is to make temperature be increased to 95 ℃ from 20 ℃ by the circulation steam in 20 minutes, places 5 minutes with inhibitory enzyme at 95 ℃ then.
DM with resulting composition transfers to about 22% then.
Gained starch composites (cationic starch material and the cationic polyacrylamide that contain hydrolysis) has following characteristic:
-DM：22.2％
-brookfield viscosity: 1500mPa.s (25 ℃-20rpm)
-electric density: 1040 μ eqv/g
According to observations, and according to embodiment 1, do not compare with the composition of 0.15 ° of/° α-Dian Fenmei gained when having synthetic polymer, the viscosity of this composition has increased.
Yet this viscosity is consistent with target, and the viscosity of its requirement mostly is 1600mPa.s (according to test A) most.
In addition, the observation according to the applicant shows that after 25 days, this composition is still stable, and the cationic starch material of its contained hydrolysis is more stable 25 ℃ of storages.
Claims (7)
1. a starch composites that contains the degraded of at least a cationic starch material is characterized in that, described composition:
-fixed nitrogen level is between 0.5% and 1.5%, and these percentage ratios are representing with respect to the dry weight of composition dry weight,
-by the viscosity that records of test A 10 and 800mPa.s between, described test A is the brookfield viscosity that measurement contains the composition of 20% dry-matter under the speed of rotation of 25 ℃ and 20 rev/mins, and
-electric density index CDI is between 660 and 800.
2. starch composites as claimed in claim 1 is characterized in that, it:
-fixed nitrogen level between 0.6% and 1.5%, and
-viscosity 50 and 700mPa.s between.
3. starch composites as claimed in claim 1 or 2 is characterized in that, its pH is between 4 and 8.5.
4. will be as any one described starch composites among the claim 1-3 as additive for paper making or as the Treatment of Industrial Water Application of Additives.
5. application as claimed in claim 4 is characterized in that, starch composites while or non-while combine with at least a active substance, and described active substance is selected from tackiness agent, white dyes, staining agent and synthetic polymer.
6. application as claimed in claim 5 is characterized in that described synthetic polymer is selected from polyacrylamide and polyvinylamine.
7. as claim 5 or 6 described application, it is characterized in that, the weight ratio of one or more synthetic polymers/one or more cationic starch materials is between 1/100 and 100/1, and described ratio is to represent with the dry weight of one or more synthetic polymers and one or more cationic starch materials.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0007533A FR2810042B1 (en) | 2000-06-13 | 2000-06-13 | NOVEL AMYLACEE COMPOSITION CONTAINING CATIONIC AMYLACEOUS MATERIAL |
| FR00/07533 | 2000-06-13 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB018129064A Division CN1303106C (en) | 2000-06-13 | 2001-06-11 | Paper-making or non paper-making use of a starchy composition containing a selected cationic starch material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1775837A CN1775837A (en) | 2006-05-24 |
| CN100379808C true CN100379808C (en) | 2008-04-09 |
Family
ID=34130572
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101084880A Expired - Fee Related CN100379808C (en) | 2000-06-13 | 2001-06-11 | Degrasive starchy composition containing a cationic starchy material and use thereof |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP4932122B2 (en) |
| CN (1) | CN100379808C (en) |
| AT (1) | ATE335009T1 (en) |
| DE (1) | DE60121954T2 (en) |
| MX (1) | MX243359B (en) |
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| FR2978138B1 (en) * | 2011-07-22 | 2015-05-22 | Roquette Freres | PROCESS FOR POTABILIZATION |
| CN108179653A (en) * | 2011-11-18 | 2018-06-19 | 罗盖特公司 | Partly soluble dextrin with high molecular weight |
| FR2992967B1 (en) * | 2012-07-06 | 2016-01-22 | Roquette Freres | MIXTURES OF POLYVINYLAMINES AND COMPOSITIONS OF CATIONIC LIQUID AMYLACEOUS MATERIALS AS AGENTS FOR IMPROVING THE DRY RESISTANCE OF PAPERS AND CARTONS |
| FR2998290B1 (en) * | 2012-11-16 | 2014-12-19 | Roquette Freres | PROCESS FOR POTABILIZATION |
| FR2998563B1 (en) * | 2012-11-28 | 2014-12-19 | Roquette Freres | PROCESS FOR THERAPY OR DEHYDRATION OF SLUDGE |
| JP2014208936A (en) * | 2013-03-29 | 2014-11-06 | 日本製紙株式会社 | Coated paper |
| JP6216957B2 (en) * | 2015-03-13 | 2017-10-25 | 株式会社片山化学工業研究所 | Pitch control agent for papermaking process and pitch failure prevention method |
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- 2001-06-11 CN CNB2005101084880A patent/CN100379808C/en not_active Expired - Fee Related
- 2001-06-11 AT AT01943595T patent/ATE335009T1/en not_active IP Right Cessation
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|---|---|
| JP4932122B2 (en) | 2012-05-16 |
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