WO2016133191A1 - Composition de latex et adhésif aqueux monocomposant - Google Patents

Composition de latex et adhésif aqueux monocomposant Download PDF

Info

Publication number
WO2016133191A1
WO2016133191A1 PCT/JP2016/054804 JP2016054804W WO2016133191A1 WO 2016133191 A1 WO2016133191 A1 WO 2016133191A1 JP 2016054804 W JP2016054804 W JP 2016054804W WO 2016133191 A1 WO2016133191 A1 WO 2016133191A1
Authority
WO
WIPO (PCT)
Prior art keywords
chloroprene
parts
latex
mass
solid content
Prior art date
Application number
PCT/JP2016/054804
Other languages
English (en)
Japanese (ja)
Inventor
紘一 島野
望月　健二
萩原　尚吾
Original Assignee
デンカ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by デンカ株式会社 filed Critical デンカ株式会社
Priority to JP2017500750A priority Critical patent/JP6627097B2/ja
Publication of WO2016133191A1 publication Critical patent/WO2016133191A1/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/38—Boron-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/17—Amines; Quaternary ammonium compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L11/00—Compositions of homopolymers or copolymers of chloroprene
    • C08L11/02—Latex
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02—Non-macromolecular additives
    • C09J11/06—Non-macromolecular additives organic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J111/00—Adhesives based on homopolymers or copolymers of chloroprene
    • C09J111/02—Latex

Definitions

  • the present invention relates to a latex composition having (A) a chloroprene homopolymer latex, (B) a chloroprene copolymer latex, and (C) a pH adjuster, and a one-component aqueous adhesive using the same.
  • Common adhesives are manufactured using vinyl acetate polymers, chloroprene polymers, acrylate polymers, natural rubber, urethane polymers, and the like as raw materials.
  • chloroprene polymers are suitably used for adhesive applications such as solvent-based contact adhesives and graft adhesives because a high degree of adhesion can be obtained with a low pressure bonding to a wide range of adherends.
  • VOC volatile organic compound
  • solvent regulations have become stricter year by year.
  • water-based adhesives using chloroprene polymer latex are being developed actively.
  • water-based adhesives have better adhesive strength than conventional solvent-based adhesives. There is a problem that is low.
  • a two-part adhesive has been studied as a technique for improving the adhesive strength of the adhesive, particularly the initial adhesive strength.
  • a specific polychloroprene latex is added to an acrylic latex or an SBR type.
  • Two-component adhesives using a composition in which a specific amount of latex and an anionic surfactant are blended and using a polyvalent metal salt as a curing agent are known.
  • the two-component adhesive has no problem when applied to an adherend with a brush or a roller.
  • the pot life of the adhesive and the initial adhesive force cannot be balanced, the mixing ratio of the adhesive is not stable, the bonding operation is not stable, and the spray is clogged. There are many troubles such as.
  • chloroprene polymer latex by incorporating a specific acrylic polymer latex and a specific surfactant into the chloroprene polymer latex, it is a one-component aqueous system that has an excellent balance of initial adhesive strength, contactability, storage stability, and spray coating properties. It is known that a chloroprene polymer latex composition suitable for adhesive applications can be obtained (see Patent Document 3).
  • JP 56-59874 A Japanese Patent Laid-Open No. 9-188860 Japanese Patent Application No. 2009-271802
  • the present invention provides a latex composition suitable for use in a one-part aqueous adhesive having excellent initial adhesive strength, adhesive layer texture, and storage stability, and having a flexible adhesive layer after drying. It is an object of the present invention to provide a one-component aqueous adhesive used.
  • the present invention relates to (A) chloroprene homopolymer latex containing a chloroprene homopolymer obtained by emulsion polymerization of chloroprene in an amount of 50 to 90% by mass in terms of solid content and (B) chloroprene and 2,3-dichloro Chloroprene copolymer latex containing a chloroprene copolymer obtained by emulsion polymerization of 1,3-butadiene is 100 parts by mass (in terms of solid content) of a latex mixture having 10 to 50% by mass in terms of solid content, (C) A latex composition containing 3 to 7 parts by mass (in terms of solid content) of at least one pH regulator selected from boric acid or an amino acid having an isoelectric point of 5.5 to 6.5.
  • the chloroprene homopolymer has a gel content (toluene insoluble content) of 30% by mass or less, a toluene-soluble content number average molecular weight of 200,000 to 500,000, and a molecular weight distribution (Mw / Mn) of 2.0 to 4 0.0.
  • the chloroprene copolymer preferably has a content of bond units derived from 2,3-dichloro-1,3-butadiene of 5 to 50% by mass.
  • the durometer hardness (type A) defined by JIS K 6253-3 of the dry sheet obtained by drying the latex composition is preferably 30 to 70.
  • the chloroprene homopolymer and the chloroprene copolymer preferably have a monomer conversion of 65% by mass or more and less than 90% by mass.
  • the latex composition can be used as a one-component aqueous adhesive.
  • the latex composition of the present invention improves the initial adhesive force and contact properties without deteriorating storage stability and spray coating properties while maintaining the high crystallization rate inherent to chloroprene homopolymer latex. It is useful as a one-component aqueous adhesive composition.
  • the adhesive layer after drying is flexible, at least one of the two adherends to be bonded is a flexible material, for example, furniture such as sofas, beds, chairs, building materials, plush toys, etc. It is suitable for use as a one-component water-based adhesive for foams (foams) such as toys and automobile interior parts and adherends such as wood, leather or foam.
  • the latex composition of the present invention comprises (A) a chloroprene homopolymer latex containing a chloroprene homopolymer obtained by emulsion polymerization of chloroprene, (B) chloroprene and 2,3-dichloro-1,3-butadiene.
  • Chloroprene homopolymer latex Chloroprene homopolymer latex is blended in order to improve the contact property, heat-resistant adhesive property, and initial adhesive strength of a one-component aqueous adhesive using a latex composition.
  • the chloroprene homopolymer latex is obtained by dispersing a chloroprene homopolymer in water in an emulsified state, and is obtained by emulsion polymerization of chloroprene using an emulsifier.
  • the chloroprene homopolymer contained in the chloroprene homopolymer latex has a gel content (toluene insoluble content) of 30% by mass or less, a toluene-soluble component number average molecular weight of 200,000 to 500,000, and a molecular weight distribution (Mw / Mn). Is preferably in the range of 2.0 to 4.0.
  • rosin acid or an alkali metal salt thereof is used as the emulsifier.
  • the emulsion stability is easily lowered when mechanical stimulation is applied to the latex composition. For this reason, when the latex composition is used as an adhesive, excellent initial adhesive strength can be expressed.
  • the most preferred emulsifier used in the emulsion polymerization is rosin acid, and any of wood rosin acid, gum rosin acid, tall oil rosin acid, or disproportionated rosin acid obtained by disproportionating these can be used.
  • the amount of rosin acid added is preferably 0.5 to 10 parts by mass and more preferably 2 to 6 parts by mass with respect to 100 parts by mass of the whole simple substance used. When the amount is less than 0.5 parts by mass, emulsification is likely to be poor, and problems such as deterioration of polymerization heat generation control, formation of aggregates, and defective product appearance tend to occur.
  • the amount is more than 10 parts by mass, the water resistance of the polymer is deteriorated due to the remaining emulsifier, and problems such as lowering of adhesive strength, foaming at the time of drying, and deterioration of product color tone tend to occur.
  • the addition amount of an anionic emulsifier and dispersant other than rosin acid is preferably 0.05 to 5 parts by mass, more preferably 0.1 to 2 parts by mass with respect to 100 parts by mass of the whole simple substance used. is there.
  • anionic emulsifiers and dispersants other than rosin acid include alkyl sulfonates having 8 to 20 carbon atoms, alkyl aryl sulfates, condensates of sodium naphthalene sulfonate and formaldehyde, and sodium alkyl diphenyl ether disulfonates.
  • a nonionic emulsifier and a dispersant may be used in combination.
  • a nonionic emulsifier By using a nonionic emulsifier together, the low-temperature stability of the latex composition and the adhesive properties when used as an adhesive can be improved.
  • a nonionic or cationic emulsifier or dispersant When a nonionic or cationic emulsifier or dispersant is used alone as an emulsifier or dispersant during emulsion polymerization, it does not cause sufficient destabilization when a pH regulator is added to form an aqueous adhesive. In some cases, the initial adhesive force may be insufficiently developed.
  • a chain transfer agent is used to adjust the molecular weight and molecular weight distribution of the chloroprene polymer.
  • the chain transfer agent include long-chain alkyl mercaptans such as n-dodecyl mercaptan and t-dodecyl mercaptan, and dialkylxanthogen disulfides such as diisopropylxanthogen disulfide and diethylxanthogen disulfide. From the viewpoint of easy control of the molecular weight and gel content, it is preferable to use long-chain alkyl mercaptans. Two or more of these chain transfer agents may be used in combination.
  • the polymerization conversion rate of the raw material monomer in the chloroprene homopolymer latex is preferably 65% by mass or more and less than 90% by mass.
  • the polymerization conversion rate is less than 65%, not only does the solid content of the polymer latex decrease, the load is applied to the drying process after application of the adhesive, and the homogenization of the adhesive layer is difficult, It may cause problems such as deterioration of odor, adhesive strength and adhesive strength due to residual monomers.
  • the polymerization conversion rate is 90% by mass or more, branching increases in the polymer, or the molecular weight distribution increases because the molecular weight increases, and there is a problem of deteriorating contact properties and water resistance, which are important performances in the present invention. It may happen.
  • a polymer having a conversion rate of 90% by mass or more When a polymer having a conversion rate of 90% by mass or more is used, it is preferably used as an auxiliary component of a polymer having a conversion rate of less than 90% by mass.
  • the polymerization conversion rate (% by mass) is obtained by [(polymer mass / total monomer mass) ⁇ 100].
  • the chloroprene homopolymer can be polymerized in the range of 5 to 45 ° C., but it is particularly preferable to polymerize at a low temperature of 5 to 20 ° C.
  • the chloroprene homopolymer is known to occupy 85% or more of trans-1,4-bonds, and its molecular structure is relatively regular. Chloroprene homopolymer has properties as a typical crystalline polymer due to the high regularity of this molecular structure.
  • the ratio of trans-1,4-bonds in the polychloroprene molecule is further increased, so that a chloroprene homopolymer having a higher crystallization rate can be obtained. Adhesive strength sufficient when this is used as a one-component aqueous adhesive is achieved.
  • a normal radical polymerization initiator can be used as an initiator for emulsion polymerization.
  • an organic or inorganic peroxide such as benzoyl peroxide, potassium persulfate, or ammonium persulfate, azobisisobutyrate.
  • An azo compound such as ronitrile is used.
  • a promoter such as anthraquinone sulfonate, potassium sulfite, or sodium sulfite may be used in combination as appropriate.
  • a polymerization terminator is added to stop the reaction when a predetermined polymerization rate is reached.
  • the polymerization terminator include phenothiazine, pt-butylcatechol, hydroquinone, hydroquinone monomethyl ether, and diethylhydroxylamine.
  • the solid content concentration of the chloroprene homopolymer latex is not particularly limited, but is usually 40 to 65% by mass.
  • the proportion of the chloroprene homopolymer latex in the latex mixture is 50 to 90% by mass in terms of solid content.
  • the amount is less than 50% by mass, the texture of the obtained adhesive layer is not flexible, and the synergistic effect of containing a chloroprene copolymer latex described later is not exhibited.
  • more than 90 mass% if the below-mentioned pH adjuster is not contained, storage stability may worsen or initial adhesive force may fall.
  • Chloroprene homopolymer latex is generally susceptible to deterioration by oxygen.
  • a stabilizer such as an antioxidant as long as the effects of the invention are not impaired.
  • the amount of the antioxidant added to the chloroprene homopolymer latex is preferably 0.1 to 3 parts by mass with respect to 100 parts by mass of the solid content of the chloroprene homopolymer latex. By setting within this range, it is possible to improve the temporal stability of the flexibility of the resulting adhesive layer.
  • the antioxidant When the antioxidant is insoluble in water or destabilizes the emulsified state of the chloroprene homopolymer latex, it may be added to an aqueous dispersion after being prepared in advance.
  • Chloroprene copolymer latex Chloroprene copolymer latex is used to adjust the storage stability and the texture (hardness) of the adhesive layer while maintaining the initial adhesive strength of the adhesive using the latex composition. It is to be blended.
  • the chloroprene copolymer latex is a copolymer of chloroprene and 2,3-dichloro-1,3-butadiene, and has a content of bond units derived from 2,3-dichloro-1,3-butadiene of 5 to It is preferable that it is 50 mass%.
  • the chloroprene copolymer contained in the chloroprene copolymer latex preferably has a monomer conversion rate of 65% by mass or more and less than 95% by mass.
  • the chloroprene copolymer contained in the chloroprene copolymer latex is a copolymer of chloroprene and 2,3-dichloro-1,3-butadiene.
  • the chloroprene copolymer may be further copolymerized with another copolymerizable monomer.
  • Other copolymerizable monomers include 1-chloro-1,3-butadiene, butadiene, isoprene, styrene, acrylonitrile, acrylic acid and its esters, methacrylic acid and its esters.
  • the copolymer can be copolymerized within a range that does not impair the performance.
  • the amount of copolymerization of 2,3-dichloro-1,3-butadiene and these other copolymerizable monomers is 2,3-dichloro-1,3-butadiene, 1-chloro-1,3-butadiene, It is preferable that butadiene, isoprene, styrene, acrylonitrile, acrylic acid esters and methacrylic acid esters are in the range of 0.01 to 20% by mass, and acrylic acid and methacrylic acid are in the range of 0.01 to 7% by mass. Two or more monomers constituting the copolymer may be used as necessary. Two or more kinds of polymers may be mixed and used.
  • the chloroprene copolymer constituting the chloroprene copolymer latex is a chloroprene homopolymer, a copolymer of chloroprene and 2,3-dichloro-1,3-butadiene, or a chloroprene homopolymer and chloroprene and 2,3.
  • Use of a mixture of a copolymer with -dichloro-1,3-butadiene is preferred because the adhesive strength of the resulting one-pack aqueous adhesive is increased.
  • these monomers may be emulsion-polymerized.
  • the emulsifier the chain transfer agent, the polymerization initiator, the polymerization terminator, and the antioxidant used for the emulsion polymerization, those used in the emulsion polymerization of the chloroprene homopolymer latex can be used.
  • the polymerization conversion rate of the raw material monomer in the chloroprene copolymer latex is preferably 65% by mass or more and less than 90% by mass.
  • the polymerization conversion rate is less than 65%, not only does the solid content of the polymer latex decrease, the load is applied to the drying process after application of the adhesive, and the homogenization of the adhesive layer is difficult, It may cause problems such as deterioration of odor, adhesive strength and adhesive strength due to residual monomers.
  • the polymerization conversion rate is 90% by mass or more, branching increases in the polymer, or the molecular weight distribution increases because the molecular weight increases, and there is a problem of deteriorating contact properties and water resistance, which are important performances in the present invention. It may happen.
  • a polymer having a conversion rate of 90% by mass or more When a polymer having a conversion rate of 90% by mass or more is used, it is preferably used as an auxiliary component of a polymer having a conversion rate of less than 90% by mass.
  • the polymerization conversion rate (% by mass) is obtained by [(polymer mass / total monomer mass) ⁇ 100].
  • the chloroprene copolymer can be polymerized in the range of 5 to 50 ° C., but it is particularly preferable to polymerize at a high temperature of 30 to 50 ° C.
  • the ratio of the trans-1,4-bond of the chloroprene copolymer can be intentionally reduced to further reduce the crystallization rate.
  • the obtained adhesive layer of the one-component aqueous adhesive has a soft texture.
  • the solid content concentration of the chloroprene copolymer latex in the chloroprene copolymer latex is not particularly limited, but is usually 40 to 65% by mass.
  • the proportion of the chloroprene copolymer latex in the latex mixture is 50 to 85% by mass in terms of solid content. If it is less than 50% by mass, the effect of softening the texture of the adhesive layer cannot be obtained. When the amount is more than 85% by mass, storage stability may be deteriorated or initial adhesive strength may be lowered unless a pH regulator described later is contained.
  • (C) pH adjuster The pH adjuster is blended in order to improve the initial adhesive strength and storage stability of the latex composition.
  • a weak acid or a buffer solution can be used, and at least one compound selected from boric acid or an amino acid having an isoelectric point of 5.5 to 6.5 is used.
  • Specific examples of amino acids having an isoelectric point of 5.5 to 6.5 include glycine (5.97), alanine (6.00), threonine (6.16), and proline (6.30). .
  • the use of glycine, which is a kind of amino acid, is preferable in view of cost, adhesion performance, ease of handling, and the like.
  • the amount of the pH adjuster to be added is not particularly limited, but an amount capable of adjusting the pH of the adhesive composition to a range of 7 to 10 should be used. More preferably, it is desirable to adjust the pH range to 8-10.
  • boric acid When boric acid is used as a pH adjuster, it is preferable to use it as a 5% aqueous solution because handling becomes easy.
  • glycine When used as a pH adjuster, it is preferably 1 to 20 parts by weight, more preferably 2 to 16 parts by weight, still more preferably 100 parts by weight (solid content) of chloroprene homopolymer latex. Use 3-13 parts by weight.
  • the latex composition of the present invention contains 1 to 20 masses of (D) a plasticizer represented by the following general formula (1) as necessary. Parts can be added.
  • R 1 and R 3 represent an aliphatic alkyl group having 1 to 3 carbon atoms or a hydrogen atom, and R 1 and R 3 may have the same structure or different structures.
  • R 2 represents 5 to 20 carbon atoms. Represents an aliphatic alkyl group of
  • the amount of the plasticizer represented by the general formula (1) is preferably 1 to 20 parts by mass, more preferably 2 to 15 parts by mass, and further preferably 5 with respect to 100 parts by mass (solid content) of the latex composition. It is in the range of ⁇ 10 parts by mass. If the amount of plasticizer added is small, the adhesive strength may be reduced when the drying time is extended. Moreover, when there are many addition amounts of a plasticizer, initial adhesive force may fall or it may become disadvantageous also in cost.
  • the latex composition of this invention contains (E) hindered phenolic antioxidant.
  • the hindered phenol-based antioxidant has an effect of improving discoloration and hygiene of the protruding portion of the adhesive paste when the latex composition is used as an adhesive.
  • the hindered phenol antioxidants are 2,2′-methylenebis (4-ethyl-6-tert-butylphenol), 2,2′-methylenebis (4-methyl-6-tert-butylphenol), 4,4′- Examples include butylidenebis (3-methyl-6-tert-butylphenol), butylated reaction product of p-cresol and dicyclopentadiene.
  • the amount of the hindered phenol-based antioxidant added is preferably 0.1 to 3% by mass, more preferably 0.5 to 2% by mass, based on 100 parts by mass of the solid content of the latex composition.
  • the addition amount of the antioxidant is less than 0.1% by mass, the antioxidant effect is not sufficient. Conversely, when it exceeds 3% by mass, the adhesive strength and the adhesive strength may be deteriorated.
  • a filler, a tackifier, a pigment, a colorant, a wetting agent, an antifoaming agent, a thickener, etc. are added as additives other than those described above within a range not impairing the effects of the present invention. It can be used as appropriate.
  • other resin emulsions (latex) may be supplementarily blended with the upper limit of 10% by mass (in terms of solid content) of the total composition. Specifically, resin emulsions such as (modified) vinyl acetate, vinyl acetate / acrylic mixture, acrylic / styrene mixture, urethane and the like can be mentioned.
  • the method for preparing the latex composition is not particularly limited, but if the pH is less than 9, the colloid of the latex mixture becomes unstable, so first (A) a chloroprene homopolymer latex and (B) a chloroprene copolymer. A method of adding latex and then adding (C) a pH adjusting agent is preferable. Each auxiliary component is also preferably added as an aqueous dispersion.
  • the latex composition thus obtained can be used as it is as a one-component aqueous adhesive.
  • Suitable adherends for one-part aqueous adhesives are foams (foams) made of materials such as polyurethane, ethylene-vinyl acetate copolymer, polyethylene, or water-absorbent adherends such as wood, cloth, and fabric. There is.
  • the polymer latex composition produced under the conditions as described above has a flexible adhesive layer and has excellent initial adhesive strength, contactability, water resistance, spray coating properties, and storage stability. It can be suitably used as a water-based aqueous adhesive.
  • chloroprene homopolymer latex A-1 had a gel content of 0%, a toluene soluble Mn of 300,000, and a molecular weight distribution (Mw / Mn) of 2.5.
  • chloroprene homopolymer latex A-2 had a gel content of 5%, a toluene-soluble content of Mn of 300,000, and a molecular weight distribution (Mw / Mn) of 2.5.
  • chloroprene homopolymer latex A-3 had a gel content of 30%, a toluene-soluble content of Mn of 300,000, and a molecular weight distribution (Mw / Mn) of 2.5.
  • chloroprene homopolymer latex A-7 had a gel content of 15%, a toluene-soluble content of Mn of 300,000, and a molecular weight distribution (Mw / Mn) of 2.0.
  • chloroprene homopolymer latex A-10 The gel content of the chloroprene homopolymer latex A-10 was 15%, the Mn content of toluene-soluble matter was 250,000, and the molecular weight distribution (Mw / Mn) was 2.5.
  • chloroprene homopolymer latexes A-1 to A-11 have gel content, Mn (number average molecular weight) and molecular weight distribution (Mw / Mn) of toluene-soluble components, as measured by the following methods.
  • Mn number average molecular weight
  • Mw / Mn molecular weight distribution
  • the gel content was calculated by the following formula (1).
  • Mw / Mn GPC measurement was performed under the following conditions, the molecular weight in terms of polystyrene was measured, and the weight average molecular weight (Mw), number average molecular weight (Mn), and molecular weight distribution (Mw / Mn) were evaluated. The measurement was carried out by preparing the toluene soluble component (sol) separated by the gel content measurement in a 0.1% tetrahydrofuran (THF) solution.
  • THF tetrahydrofuran
  • Measuring device HLC-8120GPC manufactured by Tosoh Corporation Analysis column: Tosoh TSK-GEL GMH HR -H (5 ⁇ m) ⁇ 3, size 7.8 mm ⁇ ⁇ 300 mm Guard column: guard column TSK-guard column TSK-guard column H HR -H (5 ⁇ m), size 6 mm ⁇ ⁇ 40 mm, column temperature: 40 ° C. Solvent: THF special grade, flow rate: 1 ml / min
  • emulsifiers or dispersants were used in the production of the chloroprene homopolymer latex and chloroprene copolymer latex of Examples and Comparative Examples.
  • Sodium rosinate 3R-70N manufactured by Arakawa Chemical Industries, Ltd.
  • Alkyl diphenyl ether disulfonic acid sodium manufactured by Kao Corporation Perex SSH
  • Sodium alkylbenzene sulfonate Neoperex G-15 manufactured by Kao Corporation
  • Sodium polyoxyethylene sulfate Latemul E-118B manufactured by Kao Corporation Naphthalenesulfonic acid formaldehyde condensate sodium salt: DEMOL N, manufactured by Kao Corporation
  • a tensile test was performed in a direction perpendicular to the adhesive surface with a tensile tester (manufactured by Shimadzu Corporation Autograph: tensile speed 200 mm / min), and the initial adhesive force (N / cm 2 ) was measured.
  • the initial adhesive force was determined to be acceptable when it was 3.0 N / cm 2 or more.
  • Adhesive layer texture In the same manner as the initial adhesive strength evaluation method, a polyurethane foam (thickness 20 mm ⁇ length 50 mm ⁇ width 50 mm) having a density of 30 kg / m 3 is used as an adherend, and 70 g of a one-component aqueous adhesive is used in an atmosphere at 23 ° C. / M 2 was applied by spraying. After the coating, after standing for 1 minute in an atmosphere at 23 ° C., the adhesive surfaces of the two polyurethane foams were overlapped with each other in an undried state, and the thickness was compressed to 40 mm and held for 5 seconds. . Then, after being left at 23 ° C. for 24 hours, the texture of the adhesive layer was evaluated by finger touch.
  • the one-component water-based adhesives of Examples 1 to 21 having the composition within the specified range according to the present invention have initial adhesive strength, adhesive layer texture, and durometer hardness of the dried sheet. (Type A) and storage stability were both good.
  • Comparative Examples 2 to 4 and 13 to 24 using an emulsifier other than the above without using a rosin acid salt or alkali metal salt thereof during emulsion polymerization had an initial adhesive strength of 3.0 N / cm. It was not good at 2 or less.
  • Comparative Examples 29 and 30 when a pH adjuster other than the specified type is used as in Comparative Examples 29 and 30, aggregate formation and coagulation phenomenon occur when blending the adhesive, and the physical properties of the adhesion cannot be evaluated. It was.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

L'invention concerne une composition de latex appropriée pour une utilisation dans un adhésif aqueux monocomposant qui présente un excellent équilibre entre une excellente résistance adhésive initiale, une excellente texture de couche adhésive et une excellente stabilité au stockage et qui forme une couche adhésive souple après séchage. L'invention concerne également un adhésif aqueux monocomposant utilisant la composition de latex. Cette composition de latex contient : 100 parties en masse (en termes de teneur en solides) d'un mélange de latex qui comprend (A) 50-90 % en masse, en termes de teneur en solides, d'un latex d'homopolymère de chloroprène, qui contient un homopolymère de chloroprène obtenu par polymérisation en émulsion de chloroprène, et (B) 10-50 % en masse, en termes de teneur en solides, d'un latex de copolymère de chloroprène contenant un copolymère de chloroprène obtenu par polymérisation en émulsion de chloroprène et de 2,3-dichloro-1,3-butadiène ; et (C) 3-7 parties en masse (en termes de teneur en solides) d'acide borique ou d'au moins un régulateur de pH choisi parmi les aminoacides présentant un point isoélectrique de 5,5-6,5.
PCT/JP2016/054804 2015-02-19 2016-02-19 Composition de latex et adhésif aqueux monocomposant WO2016133191A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2017500750A JP6627097B2 (ja) 2015-02-19 2016-02-19 ラテックス組成物及び一液型水系接着剤

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015030659 2015-02-19
JP2015-030659 2015-02-19

Publications (1)

Publication Number Publication Date
WO2016133191A1 true WO2016133191A1 (fr) 2016-08-25

Family

ID=56689368

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2016/054804 WO2016133191A1 (fr) 2015-02-19 2016-02-19 Composition de latex et adhésif aqueux monocomposant

Country Status (3)

Country Link
JP (1) JP6627097B2 (fr)
TW (1) TWI687497B (fr)
WO (1) WO2016133191A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190041432A (ko) * 2018-11-02 2019-04-22 김서윤 건강기능 속옷에 도포되는 재료 조성물, 그 조성물을 이용한 건강기능 속옷의 제조방법 및 그 제조방법으로 제조된 여성용 건강기능 속옷
WO2020137525A1 (fr) * 2018-12-27 2020-07-02 昭和電工株式会社 Procédé pour la production de latex de polymère de chloroprène
WO2022107693A1 (fr) * 2020-11-19 2022-05-27 デンカ株式会社 Latex de polymère de chloroprène et procédé de production correspondant et adhésif aqueux utilisant ledit latex de polymère de chloroprène
WO2022202253A1 (fr) * 2021-03-23 2022-09-29 デンカ株式会社 Latex de polymère de chloroprène et son procédé de fabrication, et corps moulé par immersion
WO2024117078A1 (fr) * 2022-11-28 2024-06-06 デンカ株式会社 Composition de latex polymère à base de chloroprène et composition adhésive
WO2024117076A1 (fr) * 2022-11-28 2024-06-06 デンカ株式会社 Composition de latex de polymère de chloroprène, et composition d'adhésif
WO2024117077A1 (fr) * 2022-11-28 2024-06-06 デンカ株式会社 Composition de latex de polymère de chloroprène, et composition d'adhésif

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009102465A (ja) * 2007-10-22 2009-05-14 Denki Kagaku Kogyo Kk ポリクロロプレンラテックス組成物、及びそれを用いた水性接着剤
WO2011065524A1 (fr) * 2009-11-30 2011-06-03 昭和電工株式会社 Composition de latex de polymère de chloroprène et son utilisation

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09188860A (ja) * 1996-01-10 1997-07-22 Aica Kogyo Co Ltd 接着剤組成物

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009102465A (ja) * 2007-10-22 2009-05-14 Denki Kagaku Kogyo Kk ポリクロロプレンラテックス組成物、及びそれを用いた水性接着剤
WO2011065524A1 (fr) * 2009-11-30 2011-06-03 昭和電工株式会社 Composition de latex de polymère de chloroprène et son utilisation

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101995939B1 (ko) 2018-11-02 2019-07-03 김서윤 건강기능 속옷에 도포되는 재료 조성물, 그 조성물을 이용한 건강기능 속옷의 제조방법 및 그 제조방법으로 제조된 여성용 건강기능 속옷
KR20190041432A (ko) * 2018-11-02 2019-04-22 김서윤 건강기능 속옷에 도포되는 재료 조성물, 그 조성물을 이용한 건강기능 속옷의 제조방법 및 그 제조방법으로 제조된 여성용 건강기능 속옷
CN113227170B (zh) * 2018-12-27 2024-03-12 株式会社力森诺科 氯丁二烯聚合物胶乳的制造方法
WO2020137525A1 (fr) * 2018-12-27 2020-07-02 昭和電工株式会社 Procédé pour la production de latex de polymère de chloroprène
CN113227170A (zh) * 2018-12-27 2021-08-06 昭和电工株式会社 氯丁二烯聚合物胶乳的制造方法
JPWO2020137525A1 (ja) * 2018-12-27 2021-11-11 昭和電工株式会社 クロロプレン重合体ラテックスの製造方法
JP7380594B2 (ja) 2018-12-27 2023-11-15 株式会社レゾナック クロロプレン重合体ラテックスの製造方法
WO2022107693A1 (fr) * 2020-11-19 2022-05-27 デンカ株式会社 Latex de polymère de chloroprène et procédé de production correspondant et adhésif aqueux utilisant ledit latex de polymère de chloroprène
WO2022202253A1 (fr) * 2021-03-23 2022-09-29 デンカ株式会社 Latex de polymère de chloroprène et son procédé de fabrication, et corps moulé par immersion
JP7472395B2 (ja) 2021-03-23 2024-04-22 デンカ株式会社 クロロプレン重合体ラテックス及びその製造方法、並びに、浸漬成形体
WO2024117078A1 (fr) * 2022-11-28 2024-06-06 デンカ株式会社 Composition de latex polymère à base de chloroprène et composition adhésive
WO2024117076A1 (fr) * 2022-11-28 2024-06-06 デンカ株式会社 Composition de latex de polymère de chloroprène, et composition d'adhésif
WO2024117077A1 (fr) * 2022-11-28 2024-06-06 デンカ株式会社 Composition de latex de polymère de chloroprène, et composition d'adhésif

Also Published As

Publication number Publication date
TWI687497B (zh) 2020-03-11
JPWO2016133191A1 (ja) 2017-11-30
JP6627097B2 (ja) 2020-01-08
TW201638269A (zh) 2016-11-01

Similar Documents

Publication Publication Date Title
JP6627097B2 (ja) ラテックス組成物及び一液型水系接着剤
JP5583692B2 (ja) クロロプレン系重合体ラテックス組成物及びその用途
TWI689566B (zh) 乳膠組合物及單液系水性接著劑
JP5221353B2 (ja) クロロプレン系重合体ラテックス、及びその製造方法
JP6841827B2 (ja) ラテックス組成物及び該ラテックス組成物からなる一液型水性接着剤
JP6631976B2 (ja) ラテックス組成物及び一液型水系接着剤
US8519047B2 (en) Aqueous adhesive dispersions
JP5255255B2 (ja) 水性接着剤
JP2007332207A (ja) ポリクロロプレン水性接着剤
JP2004059895A (ja) 水系接着剤組成物
WO2020189456A1 (fr) Latex de caoutchouc et composition adhésive à base d'eau
JP4597607B2 (ja) 水系接着剤組成物およびその製造方法
WO2003042314A1 (fr) Procede de prolongation de la vie en pot d'adhesif polychloropropene aqueux en deux parties
WO2003037980A1 (fr) Composition de latex de polychloroprene, primaire a base d'eau et procede de fixation par adhesif
JP2021001297A (ja) クロロプレン重合体ラテックスの製造方法及び接着剤の製造方法
WO2022107693A1 (fr) Latex de polymère de chloroprène et procédé de production correspondant et adhésif aqueux utilisant ledit latex de polymère de chloroprène
JP3675975B2 (ja) 塩化ビニル系樹脂用接着剤
JP2006077038A (ja) ポリクロロプレンラテックス組成物および接着剤組成物
JP2024018849A (ja) クロロプレン重合体ラテックス及び水性接着剤
JPWO2020144955A1 (ja) イソプレン系重合体ラテックス組成物

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16752577

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2017500750

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 16752577

Country of ref document: EP

Kind code of ref document: A1