CN1345391A - Binder for papermaking, method of papermaking and paper - Google Patents
Binder for papermaking, method of papermaking and paper Download PDFInfo
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- CN1345391A CN1345391A CN00805664A CN00805664A CN1345391A CN 1345391 A CN1345391 A CN 1345391A CN 00805664 A CN00805664 A CN 00805664A CN 00805664 A CN00805664 A CN 00805664A CN 1345391 A CN1345391 A CN 1345391A
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- papermaking
- binder
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- 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
-
- 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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Paper (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
A binder for papermaking which comprises a copolymer comprising (meth)acrylamide monomer units and N-vinylcarboxamide monomer units. The binder can impart dispersibility to stock fibers without causing flocculation even when used simultaneously with a cationic chemical. Thus, paper having a satisfactory formation and an excellent texture can be efficiently formed stably.
Description
Technical field that the present invention belongs to
The present invention relates to when making Japan paper, sand paper, toilet paper, paperboard etc.,, carry out the employed binder for papermaking of stable papermaking, papermaking process and paper in order to give raw material paper stock fiber dispersion.
The application is based on Japanese patent application (special hope flat 11-97059 number), and the content of this Japanese publication record is also included as the part of this specification.
Background technology
When carrying out the papermaking of Japan paper, sand paper, toilet paper, paperboard etc., in water, fully disperse to use the papermaking process of dispersing binder to use from ancient times to the present for making the paper stock fiber always.
Employed material in this dispersing binder, known have for example natural materials such as extraction mucus of shrubalthea root.The synthetic of the mixture (special public clear 52-15681 communique) of other known copolymer that also has polyoxyethylene, polyacrylamide, acrylamide and acrylates (special public clear 57-10238 communique), acrylamide and 2-acrylamide-2-methyl propane sulfonic acid salt copolymer (special public clear 56-47997 communique) and these materials etc.
There is price instability, apt to deteriorate in the natural materials shrubalthea root, shortcomings such as quality stability difference, now industrial also be almost no.
Polyacrylamide is made by the polypropylene acid amides.During the polypropylene acid amides, a part of hydrolysis of acrylamide generates carboxyl.Therefore, contain carboxyl in the polyacrylamide.But, because carboxyl is the anionic property group, if the polyacrylamide that will contain carboxyl uses with moistening paper power reinforcing agent, filler or the reagent such as dyestuff, pigment of cationic, the aggegation of paper stock fiber can take place then, situation that can not papermaking.In addition, even can papermaking, the papery hardening of gained paper, the situation of feel difference is a lot.In addition, the polyacrylamide dissolution velocity is very slow.Therefore, it is insufficient the adhesive dissolving to occur, has the situation of initiating failure in the papermaking operation with the solid content form.
In addition, the copolymer of acrylamide and acrylates copolymer or acrylamide and 2-acrylamide-2-methyl propane sulfonic acid salt, the outstanding Papermaking Performance of performance thereby be widely used when a small amount of the use.But, contain acrylates or 2-acrylamide-2-methyl propane sulfonic acid salt in these as the anionic property monomeric unit.Therefore, if use with reagent such as the moistening paper power reinforcing agent of cationic, softener, filler, dyestuff, pigment, then paper stock fiber aggegation, situation that can not papermaking is a lot.
As mentioned above, former polyacrylamide binder for papermaking can not be a lot of with the situation that reagent such as the moistening paper power reinforcing agent of cationic or filler use.
On the other hand, during papermaking, even with the reagent and the usefulness such as moistening paper power reinforcing agent of nonionic polyoxyethylene and cationic, the paper stock fiber is aggegation hardly also.But, owing to polyoxyethylene foams in paper-making process, so must add the defoamer that suppresses foaming.In addition, polyoxyethylene since water temperature or dissolution conditions viscosity significantly reduce, so be not easy papermaking stably.And, polyoxyethylene price height.
Also the someone proposes to use with polyoxyethylene and the mixed mixture of the polyacrylamide papermaking process as binder for papermaking.But if this mixture uses with reagent such as the moistening paper power of cationic reinforcing agent, filler, dyestuff, pigment, then the situation with the use polyacrylamide is identical, and the situation of paper stock fiber aggegation is arranged.
Use simultaneously even the purpose of this invention is to provide with cationic reagent, the also not aggegation of paper stock fiber can be given the binder for papermaking of paper stock fiber dispersion, can make paper of good quality, that feel is good efficiently and stably.
Disclosure of an invention
The invention provides the binder for papermaking of the copolymer formation that contains (methyl) acrylamide monomer units and N-vinyl carboxylic acid amide monomer unit.If use binder for papermaking of the present invention, though with cationic reagent and usefulness, the dispersiveness of paper stock fiber is also fine, and papermaking stably.Therefore can obtain the paper of quality, good hand touch.
The preferred plan that invention is implemented
Below the present invention is described in detail.
Binder for papermaking of the present invention is to be formed by the copolymer that contains (methyl) acrylamide monomer units and N-vinyl carboxylic acid amide monomer unit.
Usually, during the independent polymerization of N-vinyl carboxylic acid acid amides, molecular weight is low, and viscosity is low, and it is difficult therefore using as binder for papermaking.But the molecular weight of copolymer height of N-vinyl carboxylic acid acid amides and (methyl) acrylamide has the required viscosity of binder for papermaking.
That is, (methyl) acrylamide is the material that is used to improve this molecular weight of copolymer, improves the viscosity of copolymer.
On the other hand, N-vinyl carboxylic acid amide monomer unit is the material of giving paper stock fiber polymolecularity in the copolymer of binder for papermaking.The copolymer of (methyl) acrylamide and N-vinyl carboxylic acid acid amides is than the difficult hydrolysis of (methyl) methacrylamide homopolymer.Because of than, even think this copolymer and cationic reagent and usefulness, the paper stock fiber also is difficult to aggegation.
As such N-vinyl carboxylic acid amide monomer, can enumerate for example N-vinyl acetamide, N-methyl-N-vinyl acetamide, N-vinyl formamide, N-methyl-N-vinyl formamide etc.Wherein preferred N-vinyl acetamide.These N-vinyl carboxylic acid amide monomer unit that constitute copolymer can use a kind separately, also can be shared more than 2 kinds.
In copolymer,, can also further import the non-ionic monomer unit except (methyl) acrylamide monomer units, N-vinyl carboxylic acid amide monomer unit as binder for papermaking of the present invention.
Non-ionic monomer, so long as can with (methyl) acrylamide monomer and the amide monomer copolymerization of N-vinyl carboxylic acid and in polymerization system dissolved substances, this is had no particular limits.As such non-ionic monomer, can enumerate for example (methyl) methyl acrylate, (methyl) esters of acrylic acids such as (methyl) ethyl acrylate, N-methyl (methyl) acrylamide, N, (methyl) acrylamide derivatives such as N-dimethyl (methyl) acrylamide, vinyl-acetic ester, allyl alcohol etc.Wherein, preferred N, N-dimethyl (methyl) acrylamide.These non-ionic monomer unit that import in copolymer can use a kind separately, also can be shared more than 2 kinds.
The ratio of (methyl) acrylamide monomer units in the copolymer is preferably 30～98 weight %, preferred especially 50～95 weight %, more preferably 60～90 weight %.If the ratio of (methyl) acrylamide monomer units uprises in the copolymer, the tendency that molecular weight increases, viscosity uprises of copolymer is arranged generally.On the other hand, if the copolymer that (methyl) acrylamide monomer units ratio is low is as binder for papermaking, with the paper stock that contains the moistening paper power of cationic reinforcing agent etc. in a large number or added the paper stock etc. and the time spent of filler, the tendency that improves the paper stock fiber dispersion is arranged.
The ratio of N-vinyl carboxylic acid amide monomer unit in the copolymer, preferred 2～70 weight %, preferred especially 5～50 weight %, more preferably 10～40 weight %.If the copolymer that N-vinyl carboxylic acid amide monomer unit ratio is high is as binder for papermaking, with the paper stock that contains the moistening paper power of cationic reinforcing agent etc. in a large number or added the paper stock etc. and the time spent of filler, the tendency that improves the paper stock fiber dispersion is arranged.In addition, if the ratio step-down of the N-vinyl carboxylic acid amide monomer unit in the copolymer generally has the molecule quantitative change of copolymer big, the tendency that viscosity uprises.In addition, because the use amount of the N-vinyl carboxylic acid amide monomer of high price reduces, therefore the manufacturing expense step-down of copolymer, can make binder for papermaking at low cost.
In addition, the non-ionic monomer unit can import 0～40 weight % in copolymer.
Polymerization during for the copolymer made as binder for papermaking of the present invention has no particular limits.For example, can use manufacturings such as water solution polymerization process, anti-phase emulsion polymerization method, suspension polymerization.In addition, also can use the manufacturings such as (spy open flat 9-59309 communique) of known light polymerization method.And, during polymerization, can use polymerization initiator or various additives as required etc.
As polymerization initiator, can use redox initiator or Photoepolymerizationinitiater initiater etc.Redox initiator is the product that azo-compound or organic peroxide and sulphite, bisulfites, thiosulfate, formaldehyde sodium sulfoxylate, glucose etc. are combined to form.As azo-compound, for example azodiisobutyronitrile, 2,2'-Azobis(2,4-dimethylvaleronitrile), 2 are arranged, two (2-amidine propane) dihydrochlorides of 2-azo etc.In addition, as organic peroxide, persulfate, tert-butyl hydroperoxide, cumene hydroperoxide, benzoyl peroxide, laurylperoxide acyl etc. are arranged.As Photoepolymerizationinitiater initiater, benzoin, benzoin ethyl ether, benzophenone etc. are arranged.
The copolymer that obtains after polymerisation is finished uses as binder for papermaking with powder morphology usually.Have no particular limits for the method for copolymer being made powder, for example, when making copolymer, the gained copolymer can be chopped up,, afterwards,, make Powdered with pulverizing such as pulverizers with dryings such as air driers with aqueous solution polymerization.
When using the copolymer as binder for papermaking of the present invention during papermaking, this copolymer can use separately, also can mix use with other binder for papermaking.Mix with other binder for papermaking when using, in the binder for papermaking total amount, the ratio of the binder for papermaking that is formed by copolymer of the present invention is preferably more than 15 weight %.More than the preferred especially 40 weight %.Contain the above binder for papermaking of binder for papermaking 15 weight % of the present invention, obtain identical effect during with independent use binder for papermaking of the present invention.
The papermaking process that uses binder for papermaking of the present invention is had no particular limits, can use known papermaking process.Carry out papermaking like this, can make the good paper of quality and feel.
Embodiment
The present invention will be described to use embodiment and comparative example below, but the present invention is not limited to these examples.
[embodiment 1]
[preparation of binder for papermaking]
Put in 5 liters Dewar bottle and contain acrylamide 22.8 weight %, the aqueous solution 3000g of N-vinyl acetamide 1.2 weight % uses nitrogen replacement, temperature adjustment to 5 ℃.Then,, add 2 as polymerization initiator, two (2-amidine propane) the dihydrochloride 150ppm of 2-azo, tert-butyl hydroperoxide 8ppm, sodium hydrogensulfite 80ppm carries out heat insulation polymerization.
The gained colloid chops up with meat grinder, 60 ℃ of dryings, obtains particle.Then, this particle is obtained polymer powder with the pulverizer pulverizing, the binder for papermaking that preparation is formed by acrylamide monomer units 95 weight %, N-vinyl acetamide monomeric unit 5 weight %.
The Powdered binder for papermaking of gained is dissolved in the ion exchange water, obtains the binder for papermaking aqueous solution of 0.1 weight % concentration.
In addition, be used for other purposes, the above-mentioned Powdered binder for papermaking that obtains is dissolved in ion exchange water, obtain the binder for papermaking aqueous solution of 1 weight % concentration, measure the viscosity of this solution.Its result is as shown in table 1.
[preparation of paper pulp]
As paper stock, use the NBKP of beating degree 65mlCSF (Canadian standard freeness), modulate the paper pulp of 0.2 weight %.As additive, further add polyamide (polyamideamine) epoxychloropropane as the moistening paper power of cationic reinforcing agent, add 0.2 weight % with respect to paper pulp, fully stir, obtain paper pulp.
[mensuration of various characteristics]
With respect to above-mentioned paper pulp, add the binder for papermaking aqueous solution of above-mentioned 0.1 weight % concentration, be added into the binder for papermaking pure component and reach 2ppm, mix, obtain pulp solution.Then, measure paper stock compendency, the paper stock settleability of this pulp solution.Its result is as shown in table 1.
[quality of paper, the mensuration of feel]
The paper that the paper pulp that will contain above-mentioned binder for papermaking 2ppm is made with cylinder mould Yang Ji paper machine is estimated quality and feel.
The evaluation method of various performances is as follows.
[viscosity]
Measure with the Type B viscosity agent at 25 ℃.The gyrator that uses is No.2, and winding number is 6rpm.
[paper stock compendency]
When pulp solution is stirred with shaker, the state of visual judgement paper stock.Evaluation criterion is as follows.
◎: do not have compendency fully, can use fully no problemly.
Zero: aggegation is arranged slightly, can use out of questionly.
△: there is the possibility of papermaking goods quality confusion in a small amount of aggegation.
*: aggegation, can not papermaking.
[paper stock settleability]
After the 500ml graduated cylinder (internal diameter 50mm) that pulp solution 500ml injection is commercially available, obtain the required time t (second) of paper stock boundary sedimentation 10ml.In addition, obtain the paper stock sedimentation time t of the paper pulp that does not add binder for papermaking
0(second) is from t and t
0Obtain paper stock settleability D with following formula.
D＝t/t
0×100
Paper stock settleability D is the index that shows Papermaking Performance, and D is big more, and Papermaking Performance is outstanding more.
[quality of paper]
Heavy (level ground amount) 13.0g/m of the paper that uses cylinder mould Yang Ji paper machine to make
2The sand paper degree (the paper range estimation of about 20cm * 20cm) is judged.Metewand is as follows.
◎: homogeneous is outstanding.
Zero: good.
△: heterogeneity.
*: bad, can not papermaking.
[feel of paper]
Use and the same paper of texture score, judge sense of touch.Metewand is as follows.
◎: flexible touch is good.
Zero: some is hard but out of question as goods.
△: hard, can not use as goods.
*: very hard sensation.
[embodiment 2～7 and comparative example 1～2]
Remove acrylamide monomer units and N-vinyl acetamide monomeric unit ratio as shown in table 1, beyond the addition of tert-butyl hydroperoxide and the sodium hydrogensulfite concentration as shown in table 1, other is identical with embodiment 1, the preparation binder for papermaking.The viscosity of binder for papermaking, the quality of the paper stock compendency of pulp solution, paper stock settleability, paper, feel is estimated similarly to Example 1.Its result is as shown in table 1.
Table 1
| Number for example | AA/NVA (weight %) | tBHP/SHS ?(ppm) | Viscosity (mPas) | The paper stock compendency | Paper stock settleability D | Quality | Feel |
| Embodiment 1 | ????95/5 | ?8/80 | ????3100 | ??○ | ????170 | ??○ | ????○ |
| Embodiment 2 | ????80/20 | ?5/50 | ????3200 | ??◎ | ????210 | ??◎ | ????◎ |
| Embodiment 3 | ????60/40 | ?3/30 | ????2900 | ??◎ | ????200 | ??◎ | ????◎ |
| Embodiment 4 | ????40/60 | ?1/10 | ????2000 | ??◎ | ????170 | ??◎ | ????◎ |
| Embodiment 5 | ????30/70 | ?1/10 | ????1700 | ??◎ | ????160 | ??◎ | ????◎ |
| Embodiment 6 | ????99/1 | ?10/100 | ????3000 | ??○ | ????130 | ??○ | ????△ |
| Embodiment 7 | ????20/80 | ?1/10 | ????900 | ??○ | ????120 | ??△ | ????○ |
| Comparative example 1 | ????100/0 | ?10/100 | ????3100 | ??△ | ????90 | ??△ | ????△ |
| Comparative example 2 | ????0/100 | ??1/10 | ????200 | ??△ | ????100 | ??△ | ????○ |
As shown in table 1, the binder for papermaking that obtains from the copolymer that contains acrylamide monomer units and N-vinyl carboxylic acid amide monomer unit, even use simultaneously with the moistening paper power of cationic reinforcing agent, the paper stock compendency is also very little, and D is big for the paper stock settleability, demonstrates the excellent in performance as binder for papermaking.In addition, the paper that papermaking obtains is all outstanding product of quality and feel.
In addition, from N-vinyl carboxylic acid amide monomer unit be the outstanding especially character of binder for papermaking demonstration of the copolymer formation of 2～70 weight %.
[embodiment 8～9]
Use acrylamide and N-vinyl acetamide according to ratio shown in the table 2, be further used as and use N with the non-ionic monomer of their copolymerization according to ratio shown in the table 2, the N-DMAA, use 2 as polymerization initiator, two (2-amidine propane) the dihydrochloride 150ppm of 2-azo, tert-butyl hydroperoxide 5ppm, sodium hydrogensulfite 50ppm, in addition, prepare binder for papermaking similarly to Example 1.
The viscosity of binder for papermaking, paper stock compendency, the paper stock settleability of pulp solution are estimated similarly to Example 1.Its result is as shown in table 2.
[embodiment 10]
Except using methyl acrylate replacement N,N-DMAA, prepare binder for papermaking similarly to Example 8.The paper stock compendency of the viscosity of binder for papermaking, pulp solution, the paper stock settleability is estimated similarly to Example 1.Its result is as shown in table 2.
[comparative example 3]
Except using sodium acrylate replacement N,N-DMAA, prepare binder for papermaking similarly to Example 8.The viscosity of binder for papermaking, the paper stock compendency of pulp solution, the paper stock settleability is estimated similarly to Example 1.Its result is as shown in table 2.
Table 2
| Number for example | Monomer is formed | Monomer ratio (weight %) | Viscosity (mPas) | The paper stock compendency | Paper stock settleability D |
| Embodiment 8 | ??AA/NVA//DMAA | ??70/20/10 | ????2950 | ????◎ | ????210 |
| Embodiment 9 | ??AA/NVA/DMAA | ??50/20/30 | ????2850 | ????◎ | ????220 |
| Embodiment 10 | ??AA/NVA/MA | ??70/20/10 | ????3000 | ????◎ | ????210 |
| Comparative example 3 | ??AA/NVA/AaN | ??70/20/10 | ????2900 | ????× | ????70 |
Write a Chinese character in simplified form as follows in the table.
AA: acrylamide
The NVA:N-vinyl acetamide
TBHP: tert-butyl hydroperoxide
SHS: sodium hydrogensulfite
DMAA:N, the N-DMAA
MA: methyl acrylate
AaN: sodium acrylate
As shown in table 2, in binder for papermaking, but contain material with the non-ionic monomer of acrylamide and the copolymerization of N-vinyl carboxylic acid acid amides, even use simultaneously with the moistening paper power of cationic reinforcing agent, the paper stock compendency is also very little, and paper stock settleability D increases, and has as the good especially performance of binder for papermaking.
In addition, contain the material of anionic property sodium acrylate monomers unit, the paper stock compendency is big, and paper stock settleability D is little, is not suitable as binder for papermaking and uses.
[embodiment 11～13, comparative example 4]
The binder for papermaking that in polyoxyethylene, obtains with ribbon mixer mix embodiment 2 according to ratio shown in the table 3, products therefrom is used as binder for papermaking, measure the viscosity of adhesive similarly to Example 1, the paper stock compendency of pulp solution and paper stock settleability.Its result is as shown in table 3.Be blown into air in the aqueous solution of this binder for papermaking with the concentration dissolving of 0.1 weight %, visual assessment has or not foaming.It the results are shown in table 3.Metewand is as follows.
Zero: out of question.
△: more or less foaming, but be less than the degree that causes trouble.
*: confirm to have foaming, must add defoamer.
* *: has foaming, is not noted that if do not handle to cause trouble.
Table 3
| Number for example | The mixed proportion (weight %) of embodiment 2 adhesives | Viscosity (mPas) | The paper stock compendency | Paper stock settleability D | Have or not foaming |
| Embodiment 2 | ????100 | ????3200 | ????◎ | ????210 | ????○ |
| Embodiment 11 | ????20 | ????2800 | ????◎ | ????210 | ????△ |
| Embodiment 12 | ????50 | ????2900 | ????◎ | ????210 | ????○ |
| Embodiment 13 | ????10 | ????2400 | ????◎ | ????210 | ????× |
| Comparative example 4 | ????0 | ????2300 | ????◎ | ????210 | ????×× |
Binder for papermaking that embodiment 2 obtains and polyoxyethylated mixture can use simultaneously with the moistening paper power of cationic reinforcing agent.The material that particularly contains embodiment 2 gained binder for papermaking with the ratio more than the 15 weight % has same viscosity, paper stock compendency and paper stock settleability, Papermaking Performance excellence during with independent use embodiment 2 gained binder for papermaking.In addition, foaming is few, handles easily.
Utilizability on the industry
As above explanation, binder for papermaking of the present invention, it is the binder for papermaking of being made by the copolymer that contains (methyl) acrylamide monomer units and N-vinyl carboxylic acid amide monomer unit, carrying out Japan paper, when sand paper, the manufacturing of the paper such as toilet paper and paperboard, rapidly dissolving, without foaming, can give the paper stock fiber dispersion. In addition, even use simultaneously with the reagent of cationic, also can not cause the aggegation of paper stock fiber, be very outstanding binder for papermaking.
If use this binder for papermaking, can stable carry out papermaking in, obtain paper of good quality, that feel is good.
Claims (11)
1. the binder for papermaking of making by the copolymer that contains (methyl) acrylamide monomer units and N-vinyl carboxylic acid amide monomer unit.
2. the binder for papermaking of record in the claim 1 is characterized in that, also contains the non-ionic monomer unit in copolymer.
In the claim 1 record binder for papermaking, in the copolymer, (methyl) acrylamide monomer units is 30～98 weight %, N-vinyl carboxylic acid amide monomer unit is 2～70 weight %, the non-ionic monomer unit is 0～40 weight %.
In the claim 1 record binder for papermaking, wherein N-vinyl carboxylic acid acid amides is the N-vinyl acetamide.
In the claim 2 record binder for papermaking, wherein N-vinyl carboxylic acid acid amides is the N-vinyl acetamide.
In the claim 3 record binder for papermaking, wherein N-vinyl carboxylic acid acid amides is the N-vinyl acetamide.
7. the above binder for papermaking of binder for papermaking 15 weight % that contains any record in the claim 1～6.
8. papermaking process is characterized in that using the binder for papermaking of any record in the claim 1～6.
9. papermaking process is characterized in that using the binder for papermaking of putting down in writing in the claim 7.
10. use the paper of the papermaking process manufacturing of record in the claim 8.
11. paper with the papermaking process manufacturing of putting down in writing in the claim 9.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP09705999A JP3452505B2 (en) | 1999-04-02 | 1999-04-02 | Papermaking adhesive, papermaking method and paper |
| JP97059/99 | 1999-04-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1345391A true CN1345391A (en) | 2002-04-17 |
Family
ID=14182091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00805664A Pending CN1345391A (en) | 1999-04-02 | 2000-04-03 | Binder for papermaking, method of papermaking and paper |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP3452505B2 (en) |
| KR (1) | KR20020011378A (en) |
| CN (1) | CN1345391A (en) |
| WO (1) | WO2000060168A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102666983A (en) * | 2010-02-18 | 2012-09-12 | Mt奥科高分子株式会社 | Thickening agent for papermaking, method for producing same, and papermaking method using said thickening agent |
| CN102131831B (en) * | 2008-09-01 | 2013-03-20 | 大野绿水株式会社 | Method for producing n-vinyl carboxylic acid amide polymer |
| CN106928403A (en) * | 2017-03-13 | 2017-07-07 | 浙江鑫甬生物化工股份有限公司 | A kind of preparation method and application of the polymer containing N vinyl acetamides |
| CN107098987A (en) * | 2017-04-28 | 2017-08-29 | 贞丰县民族民间工艺厂 | A kind of processing method of paper grade (stock) cactus |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4675471B2 (en) * | 2000-11-09 | 2011-04-20 | ダイヤニトリックス株式会社 | Process for producing N-vinylcarboxylic acid amide copolymer and use of the obtained N-vinylcarboxylic acid amide copolymer |
| KR101738853B1 (en) | 2011-12-27 | 2017-05-23 | 고꾸리츠 다이가꾸 호우징 오까야마 다이가꾸 | Negative electrode active material and use of same |
| KR102271754B1 (en) * | 2016-03-04 | 2021-06-30 | 쇼와 덴코 가부시키가이샤 | Copolymer for binder for non-aqueous battery electrode, slurry for non-aqueous battery electrode, non-aqueous battery electrode, and non-aqueous battery |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3534273A1 (en) * | 1985-09-26 | 1987-04-02 | Basf Ag | METHOD FOR PRODUCING VINYLAMINE UNITS CONTAINING WATER-SOLUBLE COPOLYMERISATS AND THE USE THEREOF AS WET AND DRY-FASTENING AGENTS FOR PAPER |
| CA1283748C (en) * | 1986-06-25 | 1991-04-30 | Takaharu Itagaki | Vinylamine copolymer, flocculating agent and paper strength increasingagent using the same, as well as process for producing the same |
-
1999
- 1999-04-02 JP JP09705999A patent/JP3452505B2/en not_active Expired - Fee Related
-
2000
- 2000-04-03 WO PCT/JP2000/002150 patent/WO2000060168A1/en not_active Application Discontinuation
- 2000-04-03 KR KR1020017012554A patent/KR20020011378A/en not_active Application Discontinuation
- 2000-04-03 CN CN00805664A patent/CN1345391A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102131831B (en) * | 2008-09-01 | 2013-03-20 | 大野绿水株式会社 | Method for producing n-vinyl carboxylic acid amide polymer |
| CN102666983A (en) * | 2010-02-18 | 2012-09-12 | Mt奥科高分子株式会社 | Thickening agent for papermaking, method for producing same, and papermaking method using said thickening agent |
| CN106928403A (en) * | 2017-03-13 | 2017-07-07 | 浙江鑫甬生物化工股份有限公司 | A kind of preparation method and application of the polymer containing N vinyl acetamides |
| CN107098987A (en) * | 2017-04-28 | 2017-08-29 | 贞丰县民族民间工艺厂 | A kind of processing method of paper grade (stock) cactus |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3452505B2 (en) | 2003-09-29 |
| JP2000290892A (en) | 2000-10-17 |
| KR20020011378A (en) | 2002-02-08 |
| WO2000060168A1 (en) | 2000-10-12 |
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