WO2016092965A1 - アクリルアミド系ポリマー、紙力増強剤および紙 - Google Patents
アクリルアミド系ポリマー、紙力増強剤および紙 Download PDFInfo
- Publication number
- WO2016092965A1 WO2016092965A1 PCT/JP2015/080431 JP2015080431W WO2016092965A1 WO 2016092965 A1 WO2016092965 A1 WO 2016092965A1 JP 2015080431 W JP2015080431 W JP 2015080431W WO 2016092965 A1 WO2016092965 A1 WO 2016092965A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- meth
- acrylamide
- paper
- monomer
- acrylamide polymer
- Prior art date
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/37—Polymers of unsaturated acids or derivatives thereof, e.g. polyacrylates
- D21H17/375—Poly(meth)acrylamide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/52—Amides or imides
- C08F220/54—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
- C08F220/56—Acrylamide; Methacrylamide
-
- 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
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/18—Reinforcing agents
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/10—Packing paper
Definitions
- the present invention relates to an acrylamide polymer, a paper strength enhancer, and paper, and particularly relates to an acrylamide polymer, a paper strength enhancer containing the acrylamide polymer, and a paper obtained using the paper strength enhancer.
- a yield improver and a drainage improver for improving the workability and work efficiency by improving the yield and drainage of the raw material pulp and / or filler
- Various papermaking chemicals such as paper strength enhancers for improving the strength of paper products are known.
- a paper strength enhancer comprising an aqueous solution of an acrylamide polymer
- an acrylamide polymer for example, acrylamide, dimethylaminoethyl methacrylate, quaternized product of dimethylaminoethyl methacrylate, itaconic acid , Sodium metaallyl sulfonate, methylene bisacrylamide (polyfunctional vinyl monomer) and ion-exchanged water are added, and a polymerization initiator (ammonium persulfate) is added and reacted to form a paper strength enhancer as an aqueous solution of amphoteric polyacrylamide. It has been proposed to obtain (see Patent Document 1 below).
- (meth) acrylamide may be contained in the obtained paper product.
- (Meth) acrylamide is not preferred for the human body and is regulated by the US Food and Drug Administration (FDA). Therefore, for example, when a paper product is used for food packaging or the like, it is required to reduce the content of (meth) acrylamide in the paper product.
- an object of the present invention is to provide an acrylamide polymer that can enhance paper strength well and reduce the content of (meth) acrylamide, and a paper strength enhancer containing the acrylamide polymer.
- the present invention [1] includes (meth) acrylamide, a quaternary ammonium monomer, a (meth) allyl sulfonate, a crosslinkable monomer containing nitrogen, and a tertiary amino monomer.
- a quaternary ammonium monomer a quaternary ammonium monomer
- a (meth) allyl sulfonate a crosslinkable monomer containing nitrogen
- a tertiary amino monomer Contains an acrylamide polymer, which is a polymer of no polymerization component.
- the present invention [2] provides the acrylamide according to the above [1], wherein the polymerization component substantially comprises (meth) acrylamide, a quaternary ammonium monomer, and a (meth) allyl sulfonate. Contains a polymer.
- the polymerization component further includes the acrylamide polymer according to the above [1], further containing an anionic polymerizable monomer.
- the polymerization component is substantially composed of (meth) acrylamide, a quaternary ammonium monomer, a (meth) allyl sulfonate, and an anionic polymerizable monomer.
- the acrylamide polymer according to [3] is included.
- the present invention [5] includes the acrylamide polymer according to the above [1] or [3], wherein the polymerization component further contains another polymerizable monomer.
- the present invention [6] provides the acrylamide polymer according to any one of the above [1] to [5], wherein the quaternary ammonium monomer includes a quaternized product of dialkylaminoalkyl (meth) acrylamide. Is included.
- the present invention [7] includes the acrylamide polymer according to any one of the above [1] to [6], wherein the quaternary ammonium monomer includes a quaternized product of a diallylamine derivative monomer. .
- the present invention [8] includes the acrylamide polymer according to the above [7], wherein the quaternized product of the diallylamine derivative monomer is diallyldimethylammonium chloride.
- the present invention includes a paper strength enhancer characterized by containing the acrylamide polymer according to any one of the above [1] to [8].
- this invention [10] contains the paper strength enhancer as described in said [9] used for food packaging paper.
- the present invention [11] includes paper, which is obtained using the paper strength enhancer described in [9] above.
- the paper strength when used in the production of paper, the paper strength can be improved well and (meth) in the resulting paper product.
- the acrylamide content can be reduced.
- the paper of the present invention is obtained using the paper strength enhancer of the present invention, the paper strength is enhanced and the content of (meth) acrylamide is reduced.
- the acrylamide polymer of the present invention comprises (meth) acrylamide, a quaternary ammonium monomer, a (meth) allyl sulfonate, a crosslinkable monomer containing nitrogen, and a tertiary amino monomer. It is obtained by polymerization of polymerization components not contained.
- (Meth) acrylamide includes acrylamide and methacrylamide.
- (meth) acryl is defined as acrylic and / or methacryl (the same applies hereinafter).
- (Meth) acrylamide can be used alone or in combination of two kinds. That is, only one of acrylamide and methacrylamide may be used, or they may be used in combination. Preferably, acrylamide is used alone.
- the content ratio of (meth) acrylamide is, for example, 50 mol% or more, preferably 60 mol% or more, for example, 99 mol% or less, preferably 97 mol% or less, based on the total moles of the polymerization components. is there.
- the quaternary ammonium monomer is a cationic copolymerizable monomer having a quaternary ammonium group and having an ethylenic double bond, for example, a polymerizable monomer having a tertiary amino group.
- a quaternized product obtained by quaternizing a tertiary amino group (hereinafter referred to as a quaternized product of a tertiary amino monomer) or, for example, a quaternized product obtained by quaternizing a tertiary amino group of a diallylamine derivative monomer ( Hereinafter, it is referred to as a quaternized product of a diallylamine derivative monomer.
- Examples of the polymerizable monomer having a tertiary amino group include (meth) acrylic acid ester derivatives having a tertiary amino group, (meth) acrylamide derivatives having a tertiary amino group, and the like.
- Examples of the (meth) acrylic acid ester derivative having a tertiary amino group include dialkylaminoethyl (meth) acrylate (for example, dimethylaminoethyl (meth) acrylate), dialkylaminopropyl (meth) acrylate, and the like.
- Examples of the (meth) acrylamide derivative having a tertiary amino group include dialkylaminoalkyl (meth) acrylamide (eg, dialkylaminopropyl (meth) acrylamide (eg, dimethylaminopropylacrylamide), (meth) acrylamide). -3-methylbutyldimethylamine).
- the quaternized product of the tertiary amino monomer for example, the tertiary amino group of the polymerizable monomer having the tertiary amino group is converted to methyl chloride (methyl chloride), methyl bromide, benzyl chloride (benzyl chloride), And quaternized compounds (quaternized salts) quaternized with benzyl bromide, dimethyl sulfate, epichlorohydrin, and the like.
- diallylamine derivative monomers examples include diallyldimethylammonium chloride, diallyldimethylammonium bromide, diallyldiethylammonium chloride, diallyldibutylammonium chloride, diallylmethylethylammonium chloride and the like.
- quaternary ammonium monomers can be used alone or in combination of two or more.
- Preferred examples of the quaternary ammonium monomer include a quaternized product of a dialkylaminoalkyl (meth) acrylamide and a quaternized product of a diallylamine derivative monomer, more preferably a quaternized product of a diallylamine derivative monomer.
- Preferred examples of the quaternized product of dialkylaminoalkyl (meth) acrylamide include a quaternized product of dimethylaminopropyl acrylamide. Further, preferably, a quaternized product with methyl chloride (methyl chloride) or benzyl chloride (benzyl chloride) is used.
- Preferred examples of the quaternized product of diallylamine derivative monomer include diallyldimethylammonium chloride.
- the content ratio of the quaternary ammonium monomer is, for example, 0.01 mol% or more, preferably 0.1 mol% or more, for example, 30 mol% or less, preferably, relative to the total moles of the polymerization components. It is 15 mol% or less.
- (Meth) allyl sulfonate is a copolymerizable monomer that also acts as a chain transfer agent, and (meth) allyl is defined as allyl and / or methallyl.
- (meth) allyl sulfonate examples include sodium allyl sulfonate, sodium methallyl sulfonate, potassium allyl sulfonate, and potassium methallyl sulfonate.
- (Meth) allyl sulfonate is preferably sodium methallyl sulfonate.
- the content ratio of the (meth) allyl sulfonate is, for example, 0.01 mol% or more, preferably 0.2 mol% or more, for example, 5 mol% or less, preferably with respect to the total mol of the polymerization components. Is 3 mol% or less.
- the polymerization component is preferably composed of (meth) acrylamide, a quaternary ammonium monomer, and (meth) allyl sulfonate.
- the crosslinkable monomer containing nitrogen is a crosslinkable monomer containing one or more nitrogen atoms in one molecule, and examples thereof include a crosslinkable monomer containing an amide group and a crosslinkable monomer containing an imide group. .
- crosslinkable monomer containing an amide group examples include methylene bis (meth) acrylamide, ethylene bis (meth) acrylamide, allyl (meth) acrylamide, N monosubstituted acrylamide monomers (for example, N, N ′ monodimethylacrylamide, dye Acetone acrylamide, isopropyl acrylamide), triacryl formal and the like.
- crosslinkable monomer containing an imide group examples include diacryloylimide.
- the tertiary amino monomer is a polymerizable monomer (non-quaternized product) having a tertiary amino group, for example, a (meth) acrylic acid ester derivative having a tertiary amino group (for example, dialkylaminoethyl ( (Meth) acrylate (eg, dimethylaminoethyl (meth) acrylate), dialkylaminopropyl (meth) acrylate, etc., for example, (meth) acrylamide derivatives having tertiary amino groups (eg, dialkylaminoethyl (meth)) Examples include acrylamide, dialkylaminopropyl (meth) acrylamide (eg, dimethylaminopropyl acrylamide), (meth) acrylamide-3-methylbutyldimethylamine, and the like.
- a (meth) acrylic acid ester derivative having a tertiary amino group for example, dialkylaminoethy
- the resulting acrylamide polymer was used for paper production.
- the paper strength can be enhanced well, and the content of (meth) acrylamide in the paper product can be reduced.
- the polymerization component can further contain an anionic polymerizable monomer.
- the polymerization component is preferably composed of (meth) acrylamide, a quaternary ammonium monomer, (meth) allyl sulfonate, and an anionic polymerizable monomer.
- anionic polymerizable monomer examples include organic acid monomers such as ⁇ , ⁇ -unsaturated carboxylic acid and sulfonic acid monomers having a vinyl group.
- Examples of the ⁇ , ⁇ -unsaturated carboxylic acid include ⁇ , ⁇ -unsaturated monocarboxylic acid monomers such as acrylic acid, methacrylic acid, and crotonic acid, such as maleic acid, fumaric acid, itaconic acid, and citraconic acid. and ⁇ , ⁇ -unsaturated dicarboxylic acid monomers.
- sulfonic acid monomer having a vinyl group examples include vinyl sulfonic acid, styrene sulfonic acid, 2-acrylamido-2-methylpropane sulfonic acid, and the like.
- anionic copolymerizable monomer a salt such as sodium salt, potassium salt or ammonium salt of the organic acid monomer can be used.
- anionic polymerizable monomers can be used alone or in combination of two or more.
- the anionic polymerizable monomer is preferably an organic acid monomer, more preferably an ⁇ , ⁇ -unsaturated carboxylic acid, still more preferably itaconic acid or acrylic acid.
- the content ratio of the anionic polymerizable monomer is, for example, 0.1 mol% or more, preferably 0.5 mol% or more, for example, 20 mol% or less, preferably, relative to the total moles of the polymerization components. It is 10 mol% or less.
- the polymerization component contains an anionic polymerizable monomer
- the acrylamide polymer obtained from the polymerization component is used for the production of paper, the paper strength can be further improved, and ( The content of (meth) acrylamide can be reduced.
- the polymerization components are other polymerizable monomers ((meth) acrylamide, quaternary ammonium monomers, (meth) allyl sulfonates, nitrogen-containing crosslinkable monomers, tertiary amino monomers and anionic polymerizable monomers. Polymerizable monomers other than) can be contained.
- polymerizable monomers include, for example, alkyl (meth) acrylate, hydroxyalkyl (meth) acrylate, diacetone acrylamide, styrene, ⁇ -methyl styrene, polyalkylene glycol (meth) acrylate, glycerol mono (meth) acrylate, vinyl Nonionic copolymerizable monomers such as pyrrolidone, vinyl oxazoline, vinyl acetate, acryloylmorpholine, acrylonitrile, and the like are preferable, and alkyl (meth) acrylate and hydroxyalkyl (meth) acrylate are preferable.
- alkyl (meth) acrylate examples include methyl (meth) acrylate, ethyl (meth) acrylate, n-propyl (meth) acrylate, isopropyl (meth) acrylate, n-butyl (meth) acrylate, isobutyl (meth) acrylate, sec-butyl (meth) acrylate, t-butyl (meth) acrylate, pentyl (meth) acrylate, neopentyl (meth) acrylate, isoamyl (meth) acrylate, hexyl (meth) acrylate, heptyl (meth) acrylate, octyl (meth) ) Acrylate, isooctyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, nonyl (meth) acrylate, isononyl (meth) acrylate
- the content ratio of the nonionic copolymerizable monomer is, for example, 0.1 mol% or more, preferably 1 mol% or more, for example, 20 mol% or less, preferably 10 mol%, based on the total mol of the polymerization components. It is less than mol%.
- copolymerizable monomers include crosslinkable monomers that do not contain nitrogen.
- the crosslinkable monomer not containing nitrogen is a crosslinkable monomer not containing a nitrogen atom in one molecule, and examples thereof include a crosslinkable monomer not containing an amide group and an imide group.
- the crosslinkable monomer not containing nitrogen includes, for example, a nitrogen-free bifunctional crosslinking agent (for example, divinylbenzene, ethylene glycol di (meth) acrylate diethylene glycol di (meth) acrylate, triethylene glycol di). (Meth) acrylate, allyl (meth) acrylate, etc.), nitrogen-free polyfunctional crosslinking agents (for example, pentaerythritol triacrylate, trimethylolpropane acrylate, tetraallyloxyethane, etc.) and the like.
- a nitrogen-free bifunctional crosslinking agent for example, divinylbenzene, ethylene glycol di (meth) acrylate diethylene glycol di (meth) acrylate, triethylene glycol di).
- nitrogen-free polyfunctional crosslinking agents for example, pentaerythritol triacrylate, trimethylolpropane acrylate, tetraallyloxyethane, etc.
- crosslinkable monomers not containing nitrogen can be used alone or in combination of two or more.
- the content of the crosslinkable monomer not containing nitrogen is, for example, 0.001 mol% or more, preferably 0.01 mol% or more, for example, 10 mol% or less, preferably, relative to the total moles of the polymerization components. Is 5 mol% or less.
- polymerizable monomers can be used alone or in combination of two or more.
- the paper strength can be further improved and ( The content of (meth) acrylamide can be reduced.
- a polymerization component for example, a polymerization component, a polymerization initiator, and a solvent are charged into a predetermined reaction vessel and reacted.
- the polymerization components may be charged all at once, but may be dividedly added in a plurality of times. Further, the reaction can be allowed to proceed while part or all of the polymerization initiator is dropped into the reaction vessel.
- polymerization initiator examples include radical polymerization initiators, and specifically include peroxide compounds, sulfides, sulfines, sulfinic acids, and the like, and more preferably, peroxide compounds.
- the peroxide compound may be used as a redox polymerization initiator in combination with a reducing agent.
- Examples of the peroxide compound include organic peroxides and inorganic peroxides, and inorganic peroxides are preferable.
- organic peroxide examples include benzoyl peroxide, lauroyl peroxide, acetyl peroxide, capryel peroxide, 2,4-dichlorobenzoyl peroxide, isobutyl peroxide, acetylcyclohexylsulfonyl peroxide, and t-butyl peroxide.
- inorganic peroxides include persulfates such as sodium persulfate, potassium persulfate and ammonium persulfate, bromates such as hydrogen peroxide, potassium permanganate, sodium bromate and potassium bromate, and perboric acid.
- Perborates such as sodium, potassium perborate, ammonium perborate, percarbonates such as sodium percarbonate, potassium percarbonate, ammonium percarbonate, sodium perphosphate, potassium perphosphate, ammonium perphosphate, etc.
- Persulfate, and the like preferably persulfate, more preferably potassium persulfate and ammonium persulfate, and still more preferably ammonium persulfate.
- These polymerization initiators can be used alone or in combination of two or more.
- an azo compound can be used as the polymerization initiator.
- azo compound examples include 2,2'-azobisisobutyronitrile, 2,2'-azobis (2-methylpropionamidine), and salts thereof.
- the polymerization initiator is preferably an inorganic peroxide, more preferably a persulfate, and still more preferably ammonium persulfate.
- the viscosity of the acrylamide polymer can be kept low, and papermaking chemicals with excellent handling properties. Can be provided.
- the blending ratio of the polymerization initiator is, for example, 0.01 parts by mass or more, preferably 0.05 parts by mass or more, for example, 10 parts by mass or less, preferably 100 parts by mass of the total amount of the polymerization components. 5 parts by mass or less.
- the solvent examples include water, for example, ketone solvents such as acetone and methyl ethyl ketone, and monohydric alcohol solvents such as methanol, ethanol, propanol, isopropanol, and butanol, such as ethylene glycol monoethyl ether and propylene glycol monomethyl ether.
- ketone solvents such as acetone and methyl ethyl ketone
- monohydric alcohol solvents such as methanol, ethanol, propanol, isopropanol, and butanol, such as ethylene glycol monoethyl ether and propylene glycol monomethyl ether.
- a solvent miscible with water such as an ester ether solvent such as propylene glycol monomethyl ether acetate, is preferable, and water is preferable.
- a chelating agent ethylenediaminetetraacetic acid etc.
- solvents can be used alone or in combination of two or more.
- the mixing ratio of the solvent is not particularly limited, and is appropriately set according to the purpose and use.
- a chain transfer agent (excluding (meth) allyl sulfonate) can be appropriately blended together with the above-described polymerization component, polymerization initiator and solvent.
- chain transfer agent examples include isopropyl alcohol, for example, mercaptos (for example, mercaptoethanol, thiourea, thioglycolic acid, mercaptopropionic acid, thiosalicylic acid, thiolactic acid, aminoethanethiol, thioglycerol, thiomalic acid, etc.) Is mentioned.
- mercaptos for example, mercaptoethanol, thiourea, thioglycolic acid, mercaptopropionic acid, thiosalicylic acid, thiolactic acid, aminoethanethiol, thioglycerol, thiomalic acid, etc.
- chain transfer agents can be used alone or in combination of two or more.
- the mixing ratio of these chain transfer agents is, for example, 0.05 mol% or more, preferably 0.1 mol% or more, for example, 10 mol% or less, preferably, relative to the total number of moles of the polymerization components. 5 mol% or less.
- the polymerization conditions in the production of the acrylamide polymer vary depending on the type of polymerization component, polymerization initiator, solvent, etc., but the polymerization temperature is, for example, 30 ° C or higher, preferably 50 ° C or higher, for example, 100 ° C or lower, Preferably, it is 95 degrees C or less.
- the polymerization time is, for example, 0.5 hours or more, preferably 1 hour or more, for example, 24 hours or less, preferably 12 hours or less.
- the polymerization reaction is stopped by adding a known polymerization terminator (for example, sodium sulfite).
- a known polymerization terminator for example, sodium sulfite
- the pH of the reaction solution during polymerization is, for example, 1 or more, preferably 2 or more, and for example, 6 or less, preferably 5 or less.
- the pH can be adjusted by adding a known acid such as hydrochloric acid, sulfuric acid or phosphoric acid.
- an acrylamide polymer solution can be obtained by such a polymerization reaction.
- the concentration is, for example, 10% by mass or more, preferably 20% by mass or more, and for example, 50% by mass or less, preferably 45% by mass or less.
- the weight average molecular weight of the acrylamide polymer is, for example, 1.5 million or more, preferably 3 million or more, for example, 15 million or less, preferably 10 million or less.
- the weight average molecular weight of the acrylamide polymer can be appropriately adjusted depending on, for example, the type of polymerization component and the blending amount.
- the viscosity of the acrylamide polymer is, for example, 100 mP ⁇ s or more, preferably 1000 mP ⁇ s or more, and for example, 50000 mP ⁇ s or less, Preferably, it is 20000 mP ⁇ s or less.
- the measuring method of a viscosity is based on the Example mentioned later.
- Such an acrylamide polymer does not contain a crosslinkable monomer containing nitrogen and a tertiary amino monomer as a polymerization component, so when used in the production of paper, it can enhance paper strength well, The content of (meth) acrylamide in the paper product can be reduced.
- the acrylamide polymer is preferably used as a paper strength enhancer for paper used in various industrial fields, and particularly preferably as a paper strength enhancer for food wrapping paper.
- the present invention also includes a paper strength enhancer containing the acrylamide polymer.
- the paper strength enhancer of the present invention contains the above acrylamide polymer.
- the acrylamide polymer is blended in water, and the acrylamide polymer is dispersed by a known dispersion method.
- water and the acrylamide polymer are mixed and dispersed by a known dispersion method such as mechanical dispersion using a dispersion apparatus.
- Examples of the dispersing device used for mechanical dispersion include a known mixer, an ultrasonic homogenizer, and a high-pressure homogenizer.
- the dispersion condition is not particularly limited, and is set as appropriate according to the type of apparatus.
- the acrylamide polymer can be dispersed in water.
- the acrylamide polymer is synthesized in water by the above method, and the obtained aqueous solution of the acrylamide polymer can be used as a paper strength enhancer as it is.
- the concentration of the acrylamide polymer in the paper strength enhancer is, for example, 10% by mass or more, preferably 20% by mass or more, and for example, 50% by mass or less, preferably 45% by mass or less.
- paper is produced by adding the paper strength enhancer to the pulp slurry and wet papermaking.
- wet papermaking method There are no particular limitations on the wet papermaking method, and any known method can be adopted, and it can be widely applied to various types of papermaking regardless of acidic paper using aluminum sulfate as a fixing agent or neutral paper using calcium carbonate as a filler.
- Examples of paper obtained by wet papermaking include newsprint paper, ink jet paper, heat-sensitive recording base paper, pressure-sensitive recording base paper, high-quality paper, paperboard, coated paper, household paper, and other papers.
- the mixing ratio of the paper strength enhancer (acrylamide polymer) and the pulp slurry is not particularly limited, but the acrylamide polymer is, for example, 0.001 part by mass or more, preferably 0.005 with respect to 100 parts by mass of the pulp slurry. For example, 5.0 parts by mass or less, preferably 2.0 parts by mass or less.
- the paper obtained in this way has a good paper strength and is suitably used as a food wrapping paper because the content of (meth) acrylamide is reduced.
- the content of (meth) acrylamide in the paper is extracted as (meth) acrylamide in accordance with the examples described later, and converted into a (meth) acrylamide extract per paper mass, for example, 0.2 ppm or less, preferably 0.1 ppm or less.
- Example 1 As a part of the polymerization component, 70 mol% of the total amount of polymerization components described in Table 1 was prepared, and diluted with tap water so that the concentration became 30% by mass.
- sulfuric acid was added to the solution to adjust the pH to about 2.5.
- ammonium persulfate (APS) as a polymerization initiator was dropped and polymerized. Moreover, the remainder (30 mol%) of a polymerization component was dripped 5 minutes after reaching
- APS ammonium persulfate
- ammonium persulfate (APS) as a polymerization initiator was added until it became moderate viscosity (about 10000 mPa * s), and reaction was continued at about 85 degreeC. .
- Na 2 SO 3 as a polymerization terminator (reducing agent) and dilution water were added and cooled to obtain an aqueous solution of an acrylamide polymer.
- the solid content concentration of the aqueous solution was 21.9% by mass, and the pH was 4.50.
- Detector Part number TDA-302 (manufactured by Viscotek) Column: Part number TSKgel GMPW XL (manufactured by Tosoh Corporation) Mobile phase: phosphate buffer column flow rate: 0.8 mL / min Sample concentration: 1.0 g / L Injection volume: 500 ⁇ L ⁇ Residual acrylamide amount> First, 0.1 mass% phosphoric acid aqueous solution was added to the prepared acrylamide polymer aqueous solution, diluted to 5 mg / mL, and then filtered through a 1 ⁇ m membrane filter to obtain a measurement sample solution.
- acrylamide sample > 98.0%, Tokyo Kasei Kogyo
- 100 mg of an acrylamide sample was weighed with an electronic balance, and the volume was adjusted with a 1 L volumetric flask.
- the obtained solutions (acrylamide: 100 mg / L) were respectively 10.0 mg / L, 1.0 mg / L, 0.5 mg / L, 0.1 mg / L, 0.05 mg / 0.05 using a volumetric flask and a whole pipette.
- a standard sample was obtained by adjusting to L.
- acrylamide was analyzed using the obtained standard sample with the following high-performance liquid chromatograph (HPLC) analyzer and measurement conditions, and a calibration curve was obtained by the absolute calibration curve method.
- HPLC high-performance liquid chromatograph
- Example 2 Further, in the same manner as in Example 1, the viscosity of the aqueous solution at 25 ° C. and the weight average molecular weight (Mw) of the acrylamide polymer were measured. Further, in the same manner as in Example 1, the amount of free acrylamide remaining in the aqueous solution was determined. The results are shown in Tables 1-5.
- DM-BQ quaternized salt of dimethylaminoethyl methacrylate with benzyl chloride
- DA-BQ quaternized salt of dimethylaminoethyl acrylate with benzyl chloride
- DMC quaternized salt of dimethylaminoethyl methacrylate with methyl chloride
- DMAPAA-Q Quaternized salt of dimethylaminopropylacrylamide with methyl chloride
- DADMAC diallyldimethylammonium chloride (tertiary amino monomer)
- DM dimethylaminoethyl methacrylate (tertiary cation)
- DMAPAA dimethylaminopropylacrylamide (tertiary cation) (Anionic polymerizable monomer)
- IA Itaconic acid AA: Acrylic acid (nitrogen-containing crosslinking monomer)
- DMAA N, N'-dimethylacrylamide MBAM: m
- BKP bleached kraft pulp
- LKP broadwood pulp
- NNKP coniferous pulp
- CSF Canadian Standard Freeness
- the obtained pulp slurry was stirred at 400 rpm, and an aqueous acrylamide polymer solution diluted to 1.2% by mass was added 1 minute after the start of stirring.
- the addition amount of aqueous solution was adjusted so that the solid content might be 1.5 mass% with respect to the absolute dry pulp mass.
- the amount of acrylamide contained in the paper was measured by the following method.
- the acrylamide extraction amount was determined by the following method.
- acrylamide reagent > 98.0%, Tokyo Chemical Industry
- 100 mg of an acrylamide reagent > 98.0%, Tokyo Chemical Industry
- the obtained solutions were respectively 10.0 mg / L, 1.0 mg / L, 0.5 mg / L, 0.1 mg / L, 0.05 mg / 0.05 using a volumetric flask and a whole pipette.
- a standard sample was obtained by adjusting to L.
- acrylamide was analyzed using the obtained standard sample with the following high-performance liquid chromatograph (HPLC) analyzer and measurement conditions, and a calibration curve was obtained by the absolute calibration curve method.
- HPLC high-performance liquid chromatograph
- acrylamide was analyzed using the following high performance liquid chromatograph (HPLC) analyzer and measurement conditions, and the concentration of acrylamide [mg / L] was determined from the calibration curve. It was. From this result, the mass of acrylamide contained in the measurement sample solution (that is, the mass of acrylamide extracted from paper) was determined by the following formula.
- Paper strength Paper was manufactured by the following method using the aqueous solution of the acrylamide polymer obtained in each Example and each comparative example.
- the obtained pulp slurry was stirred at 400 rpm, and an aqueous acrylamide polymer solution diluted to 1.2% by mass was added 1 minute after the start of stirring.
- the addition amount of aqueous solution was adjusted so that the solid content might be 1.5 mass% with respect to the absolute dry pulp mass.
- the paper strength was evaluated by the following method using the obtained paper. The results are shown in Tables 1-5.
- the acrylamide polymer and paper strength enhancer of the present invention are suitably used in the production of paper in various industrial fields, and the paper of the present invention is suitably used as food packaging paper.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Paper (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Photoreceptors In Electrophotography (AREA)
Abstract
Description
重合成分の一部として、表1に記載される重合成分の仕込み総量の70mol%を用意し、濃度が30質量%になるように水道水で希釈した。
B型粘度計(ローターNo.3、12rpm)(TVB-10型粘度計 東機産業社製)を使用して、25℃における粘度を、JIS K 7117-1(1999年)に準拠して測定した。
サンプルをpH7のリン酸緩衝液に溶解させ、試料粘度を1.0g/Lとして、ゲルパーミエーションクロマトグラフィー(GPC)によって測定し、得られたクロマトグラム(チャート)から、サンプルの重量平均分子量(Mw)を算出した。測定装置及び測定条件を以下に示す。
検出器:品番TDA-302(Viscotek社製)
カラム:品番TSKgel GMPWXL(東ソー社製)
移動相:リン酸緩衝液
カラム流量:0.8mL/min
試料濃度:1.0g/L
注入量:500μL
<残存アクリルアミド量>
まず、作製したアクリルアミド系ポリマーの水溶液に0.1質量%リン酸水溶液を加え5mg/mLに希釈し、その後、1μmメンブレンフィルターにてろ過し、測定試料溶液とした。
装置:高速液体クロマトグラフChromaster(日立ハイテクノロジーズ社製)
カラム:LaChrom C18-AQ(5μm)(日立ハイテクノロジーズ社製)
ガードカラム:LaChrom C18-AQ(5μm)-G(日立ハイテクノロジーズ社製)
検出波長:220nm
温度:40℃
溶離液:超純水
流量:1.00mL/min
実施例2~13および比較例1~21
表1~5に示す配合処方とした以外は、実施例1と同様にして、アクリルアミド系ポリマーの水溶液を得た。なお、連鎖移動剤としてのイソプロパノールは、重合成分とともに配合した。
DM-BQ:ジメチルアミノエチルメタクリレートの塩化ベンジルによる4級化塩
DA-BQ:ジメチルアミノエチルアクリレートの塩化ベンジルによる4級化塩
DMC:ジメチルアミノエチルメタクリレートの塩化メチルによる4級化塩
DMAPAA-Q:ジメチルアミノプロピルアクリルアミドの塩化メチルによる4級化塩
DADMAC:ジアリルジメチルアンモニウムクロライド
(3級アミノ系モノマー)
DM:ジメチルアミノエチルメタクリレート(3級カチオン)
DMAPAA:ジメチルアミノプロピルアクリルアミド(3級カチオン)
(アニオン性重合性モノマー)
IA:イタコン酸
AA:アクリル酸
(窒素含有架橋性モノマー)
DMAA:N,N’-ジメチルアクリルアミド
MBAM:メチレンビスアクリルアミド
((メタ)アクリルアミド)
AM:アクリルアミド
((メタ)アリルスルホン酸塩)
SMAS:メタリルスルホン酸ナトリウム
(連鎖移動剤)
IPA:イソプロパノール
(重合開始剤)
APS:過硫酸アンモニウム
V-50:商品名V-50、2,2’-アゾビス(2-メチルプロピオンアミジン)・二塩酸塩、和光純薬工業社製
<評価>
(1)アクリルアミド抽出試験
各実施例および各比較例において得られたアクリルアミド系ポリマーの水溶液を用いて、以下の方法で紙を製造した。
=HPLCにより測定されたアクリルアミドの濃度[mg/L]
×作製した測定試料溶液量[5mL]
×(1/1000)[L/mL]
そして、以下の式により、紙の質量あたりのアクリルアミドの抽出量(対紙質量あたりのアクリルアミド抽出量)を算出した。
=測定試料溶液中のアクリルアミド質量[mg]/紙の質量[10000mg]×1000000
装置:高速液体クロマトグラフChromaster(日立ハイテクノロジーズ社製)
カラム:LaChrom C18-AQ(5μm)(日立ハイテクノロジーズ社製)
ガードカラム:LaChrom C18-AQ(5μm)-G(日立ハイテクノロジーズ社製)
検出波長:220nm
温度:40℃
溶離液:超純水
流量:1.00mL/min
その結果を、表1~5に示す。
各実施例および各比較例において得られたアクリルアミド系ポリマーの水溶液を用いて、以下の方法で紙を製造した。
JAPAN TAPPI 紙パルプ試験方法2000年版に記載の規格No.18-2「紙及び板紙-内部結合強さ試験方法-第2部:インターナルボンドテスタ法」に従い、紙のインターナルボンド(IB)を測定した。
Claims (11)
- (メタ)アクリルアミドと、
4級アンモニウム系モノマーと、
(メタ)アリルスルホン酸塩と
を含み、かつ、
窒素を含有する架橋性モノマーと、
3級アミノ系モノマーと
を含まない重合成分の重合体であることを特徴とする、アクリルアミド系ポリマー。 - 前記重合成分が、実質的に、
(メタ)アクリルアミドと、
4級アンモニウム系モノマーと、
(メタ)アリルスルホン酸塩と
からなる、請求項1に記載のアクリルアミド系ポリマー。 - 前記重合成分が、さらに、
アニオン性重合性モノマーを含有する、請求項1に記載のアクリルアミド系ポリマー。 - 前記重合成分が、実質的に、
(メタ)アクリルアミドと、
4級アンモニウム系モノマーと、
(メタ)アリルスルホン酸塩と、
アニオン性重合性モノマーと
からなる、請求項3に記載のアクリルアミド系ポリマー。 - 前記重合成分が、さらに、
その他の重合性モノマーを含有する、請求項1に記載のアクリルアミド系ポリマー。 - 前記4級アンモニウム系モノマーが、
ジアルキルアミノアルキル(メタ)アクリルアミドの4級化物を含む、請求項1に記載のアクリルアミド系ポリマー。 - 前記4級アンモニウム系モノマーが、
ジアリルアミン誘導体モノマーの4級化物を含む、請求項1に記載のアクリルアミド系ポリマー。 - 前記ジアリルアミン誘導体モノマーの4級化物が、ジアリルジメチルアンモニウムクロライドである、請求項7に記載のアクリルアミド系ポリマー。
- 請求項1に記載のアクリルアミド系ポリマーを含有することを特徴とする、紙力増強剤。
- 食品包装紙に用いられる、請求項9に記載の紙力増強剤。
- 請求項9に記載の紙力増強剤を用いて得られることを特徴とする、紙。
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201580007591.8A CN105980428B (zh) | 2014-12-08 | 2015-10-28 | 丙烯酰胺系聚合物、纸力增强剂和纸 |
ES15867993T ES2937265T3 (es) | 2014-12-08 | 2015-10-28 | Polímero de acrilamida, agente que aumenta la resistencia del papel y papel |
US15/114,492 US9995001B2 (en) | 2014-12-08 | 2015-10-28 | Acrylamide-based polymer, paper strength agent, and paper |
FIEP15867993.6T FI3121205T3 (fi) | 2014-12-08 | 2015-10-28 | Akryyliamidipolymeeri, paperin lujuutta parantava aine ja paperi |
CA2937050A CA2937050C (en) | 2014-12-08 | 2015-10-28 | Acrylamide-based polymer, paper strength agent, and paper |
JP2016510526A JP6060314B2 (ja) | 2014-12-08 | 2015-10-28 | 紙力増強剤および紙 |
EP15867993.6A EP3121205B1 (en) | 2014-12-08 | 2015-10-28 | Acrylamide polymer, paper strength enhancing agent, and paper |
CN201910320032.2A CN110183571B (zh) | 2014-12-08 | 2015-10-28 | 纸力增强剂和纸 |
US15/892,821 US20180163346A1 (en) | 2014-12-08 | 2018-02-09 | Acrylamide-based polymer, paper strength agent, and paper |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014-248433 | 2014-12-08 | ||
JP2014248433 | 2014-12-08 |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US15/114,492 A-371-Of-International US9995001B2 (en) | 2014-12-08 | 2015-10-28 | Acrylamide-based polymer, paper strength agent, and paper |
US15/892,821 Division US20180163346A1 (en) | 2014-12-08 | 2018-02-09 | Acrylamide-based polymer, paper strength agent, and paper |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2016092965A1 true WO2016092965A1 (ja) | 2016-06-16 |
Family
ID=56107160
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2015/080431 WO2016092965A1 (ja) | 2014-12-08 | 2015-10-28 | アクリルアミド系ポリマー、紙力増強剤および紙 |
Country Status (9)
Country | Link |
---|---|
US (2) | US9995001B2 (ja) |
EP (1) | EP3121205B1 (ja) |
JP (2) | JP6060314B2 (ja) |
CN (2) | CN105980428B (ja) |
CA (1) | CA2937050C (ja) |
ES (1) | ES2937265T3 (ja) |
FI (1) | FI3121205T3 (ja) |
PT (1) | PT3121205T (ja) |
WO (1) | WO2016092965A1 (ja) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2018012909A (ja) * | 2016-07-12 | 2018-01-25 | 荒川化学工業株式会社 | 紙力増強剤、紙力増強剤の製造方法、紙および紙の製造方法 |
WO2018097206A1 (ja) * | 2016-11-28 | 2018-05-31 | 株式会社日本触媒 | カルボキシル基含有共重合体及びその製造方法 |
JP2018090786A (ja) * | 2016-11-28 | 2018-06-14 | 株式会社日本触媒 | カルボキシル基含有共重合体 |
JP2018131603A (ja) * | 2017-02-15 | 2018-08-23 | 株式会社日本触媒 | カルボキシル基含有共重合体の製造方法 |
JP6402289B1 (ja) * | 2017-06-28 | 2018-10-10 | ハリマ化成株式会社 | (メタ)アクリルアミド系ポリマー製紙用添加剤の製造方法、および、(メタ)アクリルアミド系ポリマー製紙用添加剤 |
WO2019003625A1 (ja) * | 2017-06-28 | 2019-01-03 | ハリマ化成株式会社 | (メタ)アクリルアミド系ポリマー製紙用添加剤の製造方法、および、(メタ)アクリルアミド系ポリマー製紙用添加剤 |
WO2020045514A1 (ja) * | 2018-08-31 | 2020-03-05 | 星光Pmc株式会社 | 製紙用添加剤、紙及び紙の製造方法 |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7047310B2 (ja) * | 2017-09-28 | 2022-04-05 | 荒川化学工業株式会社 | 紙力増強剤及び紙 |
TW202026487A (zh) | 2018-09-18 | 2020-07-16 | 日商荒川化學工業股份有限公司 | 粉狀紙張增強劑、紙張增強劑溶液、紙張 |
CN111218222B (zh) * | 2020-03-09 | 2021-11-16 | 杭州电子科技大学 | 一种光固化组合物及其制备方法 |
TW202221196A (zh) * | 2020-11-18 | 2022-06-01 | 日商荒川化學工業股份有限公司 | 紙力增強劑及紙 |
CN113912771A (zh) * | 2021-09-28 | 2022-01-11 | 苏州派凯姆新能源科技有限公司 | 一种两性聚丙烯酰胺树脂造纸增强剂的制备方法及其应用 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000239326A (ja) * | 1999-02-19 | 2000-09-05 | Japan Pmc Corp | アクリルアミド系共重合体のポリマー、製紙用添加剤及び紙 |
JP2004084121A (ja) * | 2002-08-27 | 2004-03-18 | Seiko Pmc Corp | 液体容器用原紙及びその製造方法 |
JP2009024125A (ja) * | 2007-07-23 | 2009-02-05 | Hymo Corp | 安定な水溶性重合体分散液およびその製造方法 |
JP2011246830A (ja) * | 2010-05-25 | 2011-12-08 | Seiko Pmc Corp | 製紙用紙力増強剤の製造方法 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI881146A (fi) | 1987-03-12 | 1988-09-13 | Sumitomo Chemical Co | Foerfarande foer foerbaettring av papprets haollfasthet. |
JP2605330B2 (ja) | 1987-03-12 | 1997-04-30 | 住友化学工業株式会社 | 紙力増強方法 |
JP3575018B2 (ja) | 1996-07-24 | 2004-10-06 | 荒川化学工業株式会社 | 製紙用添加剤 |
JP2000008293A (ja) * | 1998-06-17 | 2000-01-11 | Japan Pmc Corp | 製紙用添加剤 |
JP4835966B2 (ja) | 2001-04-20 | 2011-12-14 | 星光Pmc株式会社 | 層間強度向上剤 |
JP4013188B2 (ja) | 2002-02-22 | 2007-11-28 | 星光Pmc株式会社 | (メタ)アクリルアミド系ポリマー、その製造方法、製紙用薬品、及びそれを含有する紙 |
US8816031B2 (en) * | 2006-03-06 | 2014-08-26 | Harima Chemicals, Inc. | Water-soluble polymer and additive for paper manufacture |
JP4957265B2 (ja) | 2007-01-24 | 2012-06-20 | 荒川化学工業株式会社 | 嵩高紙の製造方法および嵩高紙 |
JP5445831B2 (ja) * | 2008-06-19 | 2014-03-19 | 荒川化学工業株式会社 | 水溶性重合体分散液、紙力増強剤、製紙用濾水性向上剤および製紙用歩留向上剤 |
CN102627724B (zh) * | 2012-03-29 | 2014-05-14 | 上海东升新材料有限公司 | 造纸干强剂及其制备方法 |
JP2016102265A (ja) * | 2013-02-05 | 2016-06-02 | 星光Pmc株式会社 | 製紙用複合填料の製造方法、および填料内添紙の製造方法 |
-
2015
- 2015-10-28 FI FIEP15867993.6T patent/FI3121205T3/fi active
- 2015-10-28 PT PT158679936T patent/PT3121205T/pt unknown
- 2015-10-28 WO PCT/JP2015/080431 patent/WO2016092965A1/ja active Application Filing
- 2015-10-28 CN CN201580007591.8A patent/CN105980428B/zh active Active
- 2015-10-28 CN CN201910320032.2A patent/CN110183571B/zh active Active
- 2015-10-28 EP EP15867993.6A patent/EP3121205B1/en active Active
- 2015-10-28 US US15/114,492 patent/US9995001B2/en active Active
- 2015-10-28 ES ES15867993T patent/ES2937265T3/es active Active
- 2015-10-28 JP JP2016510526A patent/JP6060314B2/ja active Active
- 2015-10-28 CA CA2937050A patent/CA2937050C/en active Active
-
2016
- 2016-08-16 JP JP2016159583A patent/JP6653229B2/ja active Active
-
2018
- 2018-02-09 US US15/892,821 patent/US20180163346A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000239326A (ja) * | 1999-02-19 | 2000-09-05 | Japan Pmc Corp | アクリルアミド系共重合体のポリマー、製紙用添加剤及び紙 |
JP2004084121A (ja) * | 2002-08-27 | 2004-03-18 | Seiko Pmc Corp | 液体容器用原紙及びその製造方法 |
JP2009024125A (ja) * | 2007-07-23 | 2009-02-05 | Hymo Corp | 安定な水溶性重合体分散液およびその製造方法 |
JP2011246830A (ja) * | 2010-05-25 | 2011-12-08 | Seiko Pmc Corp | 製紙用紙力増強剤の製造方法 |
Non-Patent Citations (1)
Title |
---|
See also references of EP3121205A4 * |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2018012909A (ja) * | 2016-07-12 | 2018-01-25 | 荒川化学工業株式会社 | 紙力増強剤、紙力増強剤の製造方法、紙および紙の製造方法 |
US11021557B2 (en) | 2016-11-28 | 2021-06-01 | Nippon Shokubai Co., Ltd. | Carboxyl-group-containing copolymer, and method for producing same |
WO2018097206A1 (ja) * | 2016-11-28 | 2018-05-31 | 株式会社日本触媒 | カルボキシル基含有共重合体及びその製造方法 |
JP2018090786A (ja) * | 2016-11-28 | 2018-06-14 | 株式会社日本触媒 | カルボキシル基含有共重合体 |
JP7125194B2 (ja) | 2016-11-28 | 2022-08-24 | 株式会社日本触媒 | カルボキシル基含有共重合体 |
JP2018131603A (ja) * | 2017-02-15 | 2018-08-23 | 株式会社日本触媒 | カルボキシル基含有共重合体の製造方法 |
JP7125203B2 (ja) | 2017-02-15 | 2022-08-24 | 株式会社日本触媒 | カルボキシル基含有共重合体の製造方法 |
CN110799704A (zh) * | 2017-06-28 | 2020-02-14 | 哈利玛化成株式会社 | (甲基)丙烯酰胺系聚合物造纸用添加剂的制造方法及(甲基)丙烯酰胺系聚合物造纸用添加剂 |
US10730989B2 (en) | 2017-06-28 | 2020-08-04 | Harima Chemicals, Incorporated | Method for producing (meth)acrylamide papermaking additive and (meth)acrylamide polymer papermaking additive |
WO2019003625A1 (ja) * | 2017-06-28 | 2019-01-03 | ハリマ化成株式会社 | (メタ)アクリルアミド系ポリマー製紙用添加剤の製造方法、および、(メタ)アクリルアミド系ポリマー製紙用添加剤 |
JP6402289B1 (ja) * | 2017-06-28 | 2018-10-10 | ハリマ化成株式会社 | (メタ)アクリルアミド系ポリマー製紙用添加剤の製造方法、および、(メタ)アクリルアミド系ポリマー製紙用添加剤 |
WO2020045514A1 (ja) * | 2018-08-31 | 2020-03-05 | 星光Pmc株式会社 | 製紙用添加剤、紙及び紙の製造方法 |
JPWO2020045514A1 (ja) * | 2018-08-31 | 2021-08-10 | 星光Pmc株式会社 | 製紙用添加剤、紙及び紙の製造方法 |
JP7081674B2 (ja) | 2018-08-31 | 2022-06-07 | 星光Pmc株式会社 | 製紙用添加剤、紙及び紙の製造方法 |
AU2019332388B2 (en) * | 2018-08-31 | 2022-08-11 | Seiko Pmc Corporation | Papermaking additive, paper, and paper manufacturing method |
Also Published As
Publication number | Publication date |
---|---|
CN105980428A (zh) | 2016-09-28 |
US20180163346A1 (en) | 2018-06-14 |
CA2937050C (en) | 2023-01-17 |
US20160340831A1 (en) | 2016-11-24 |
CN105980428B (zh) | 2019-08-27 |
US9995001B2 (en) | 2018-06-12 |
EP3121205B1 (en) | 2022-12-21 |
EP3121205A1 (en) | 2017-01-25 |
CN110183571A (zh) | 2019-08-30 |
FI3121205T3 (fi) | 2023-02-19 |
CA2937050A1 (en) | 2016-06-16 |
JP6653229B2 (ja) | 2020-02-26 |
ES2937265T3 (es) | 2023-03-27 |
JP6060314B2 (ja) | 2017-01-11 |
JPWO2016092965A1 (ja) | 2017-04-27 |
JP2017014517A (ja) | 2017-01-19 |
PT3121205T (pt) | 2023-02-01 |
EP3121205A4 (en) | 2017-10-04 |
CN110183571B (zh) | 2022-06-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6060314B2 (ja) | 紙力増強剤および紙 | |
JP6059853B1 (ja) | ポリアクリルアミド樹脂、製紙添加剤および紙 | |
JP5640458B2 (ja) | 製紙用紙力増強剤の製造方法 | |
CN110799704B (zh) | (甲基)丙烯酰胺系聚合物造纸用添加剂及其制造方法 | |
JP2010196192A (ja) | 紙力増強剤 | |
JP4158145B2 (ja) | 製紙用添加剤及び製紙用添加剤の製造方法 | |
JP6402289B1 (ja) | (メタ)アクリルアミド系ポリマー製紙用添加剤の製造方法、および、(メタ)アクリルアミド系ポリマー製紙用添加剤 | |
JP6253373B2 (ja) | 製紙薬品用分散剤および製紙薬品分散液 | |
JP2009079338A (ja) | 製紙用表面サイズ剤 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ENP | Entry into the national phase |
Ref document number: 2016510526 Country of ref document: JP Kind code of ref document: A |
|
ENP | Entry into the national phase |
Ref document number: 2937050 Country of ref document: CA |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 15867993 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 15114492 Country of ref document: US |
|
REEP | Request for entry into the european phase |
Ref document number: 2015867993 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2015867993 Country of ref document: EP |
|
NENP | Non-entry into the national phase |
Ref country code: DE |