WO2019098171A1 - Agent antistatique pour caoutchouc non vulcanisé et dispersion aqueuse dudit agent antistatique pour caoutchouc non vulcanisé - Google Patents

Agent antistatique pour caoutchouc non vulcanisé et dispersion aqueuse dudit agent antistatique pour caoutchouc non vulcanisé Download PDF

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Publication number
WO2019098171A1
WO2019098171A1 PCT/JP2018/041929 JP2018041929W WO2019098171A1 WO 2019098171 A1 WO2019098171 A1 WO 2019098171A1 JP 2018041929 W JP2018041929 W JP 2018041929W WO 2019098171 A1 WO2019098171 A1 WO 2019098171A1
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Prior art keywords
unvulcanized rubber
rubber
mass
adhesion
component
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PCT/JP2018/041929
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English (en)
Japanese (ja)
Inventor
孝生 岡
一幸 坂本
志郎 勢旗
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ライオン・スペシャリティ・ケミカルズ株式会社
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Publication of WO2019098171A1 publication Critical patent/WO2019098171A1/fr

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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances

Definitions

  • the present invention relates to an anti-adhesive agent for unvulcanized rubber and an anti-adhesive agent aqueous dispersion for unvulcanized rubber.
  • rubber adhesion inhibitor or “adhesive adhesion agent”
  • adhesion agent an adhesive adhesion agent
  • various devices have been made to enhance the adhesion of the rubber deposition inhibitor to the rubber surface.
  • water-soluble polymers such as sodium alginate, CMC (carboxymethylcellulose), sodium polyacrylate, PVA (polyvinyl alcohol), water-soluble polysaccharides such as xanthan gum, etc.
  • JP-A-53-061639 Japanese Patent Application Laid-Open No. 62-032127 JP, 2009-161667, A JP, 2009-249533, A
  • Patent Documents 1 to 4 as described above, the adhesion to the rubber surface is improved by increasing the viscosity of the aqueous dispersion of the adhesion preventing agent.
  • the viscosity of the adhesion preventing agent water dispersion is too high, drying takes time, and unvulcanized rubbers are not in close contact with each other in the undried portion and may not be peeled off, and the adhesion may not be exhibited.
  • the present invention provides an adhesion preventive agent for unvulcanized rubber capable of improving the adhesion to a rubber surface without relying on viscosity control of an aqueous dispersion, and an adhesion dispersion aqueous solution for adhesion preventive agent for unvulcanized rubber.
  • the purpose is to
  • the adhesion preventing agent for unvulcanized rubber of the present invention is characterized by containing the following components (A) to (D).
  • R 1 is a linear or branched hydrocarbon group having 4 to 20 carbon atoms
  • EO is an oxyethylene group
  • PO is an oxypropylene group
  • m is a number from 0 to 10 indicating the average added mole number of EO
  • n is a number from 0 to 10 indicating the average added mole number of PO
  • the anti-adhesive agent water dispersion for unvulcanized rubber of the present invention is The anti-vulcanizing agent for unvulcanized rubber of the present invention, water and, It is characterized by including.
  • an adhesion preventive agent for unvulcanized rubber capable of improving adhesion to a rubber surface without relying on viscosity control of an aqueous dispersion, and an adhesion preventive water dispersion solution for unvulcanized rubber are provided. can do.
  • the anti-adhesive agent for unvulcanized rubber and the anti-adhesive agent aqueous dispersion for unvulcanized rubber of the present invention are, for example, m in the formula (1) with respect to the total mass (B all ) of the component (B)
  • the inorganic powder (A) is not particularly limited, and examples thereof include smectite, kaolin (also referred to as kaolin clay), clay, talc, mica, alkaline earth metal carbonate and the like.
  • smectite include montmorillonite, beidellite, nontronite, saponite, hectorite, soukonite, smectite such as stevensite, and bentonite containing montmorillonite.
  • Examples of the alkaline earth metal carbonate include calcium carbonate and magnesium carbonate.
  • Component (A) may contain only one type of inorganic powder, or two or more types of inorganic powder may be used in combination.
  • the content of the component (A) in the anti-vulcanizing agent for unvulcanized rubber of the present invention can be selected according to the purpose, and for example, relative to the total mass of the components (A) to (D), 60 mass% or more and 98.4 mass% or less, 65 mass% or more and 95 mass% or less, or 70 mass% or more and 90 mass% or less. It is preferable that the content of the inorganic powder is not too low from the viewpoint of imparting adhesion improvement and high dispersion stability to the anti-adhesive agent for unvulcanized rubber of the present invention and preventing separation in water. Moreover, it is preferable that the content rate of the said inorganic powder is not too high from a viewpoint of preventing the dispersibility fall of the anti-adhesive agent for unvulcanized rubber of this invention, and a drying fall.
  • R 1 is a linear or branched hydrocarbon group having 4 to 20 carbon atoms
  • EO is an oxyethylene group
  • PO is an oxypropylene group
  • m is a number from 0 to 10 indicating the average added mole number of EO
  • n is a number from 0 to 10 indicating the average added mole number of PO
  • R 1 is, as described above, a linear or branched hydrocarbon group having 4 to 20 carbon atoms.
  • the component (B) may be a mixture of two or more types of compounds represented by the formula (1), in which case the carbon number of R 1 is the average carbon number in the mixture.
  • the carbon number of R 1 may be, for example, 4 to 16, 4 to 12, or 4 to 9.
  • a saturated or unsaturated hydrocarbon group is mentioned, for example.
  • the saturated or unsaturated hydrocarbon group is, for example, an aliphatic saturated or unsaturated hydrocarbon group.
  • the aliphatic saturated or unsaturated hydrocarbon group may be, for example, an alkyl group, an alkenyl group, an alkynyl group or the like.
  • the alkyl group is not particularly limited.
  • n-butyl group, isobutyl group, sec-butyl group, tert-butyl group, pentyl group, hexyl group, heptyl group, octyl group, 2-ethylhexyl group, nonyl group examples thereof include decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl, icosyl and the like.
  • alkenyl group examples include those having one or more double bonds in the alkyl group.
  • alkenyl group examples include 1-butenyl group, 2-butenyl group, 3-butenyl group, 1,3-butazinyl group, 3-methyl-2-butenyl group and the like.
  • alkynyl group examples include those having one or more triple bonds in the alkyl group.
  • examples of the alkynyl group include butynyl group and the like.
  • the alkynyl group may further have, for example, one or more double bonds.
  • m is a number from 0 to 10 indicating the average added mole number of EO.
  • m may be, for example, 0 to 6, 0 to 4, 0 to 2, or 0.
  • n is a number from 0 to 10 indicating the average added mole number of PO. n may be, for example, 0 to 7, 0 to 6, 0 to 5, or 0 to 3.
  • component (A) inorganic powder
  • the sum (m + n) of m and n is not particularly limited, and may be, for example, 0 to 8, 0 to 6, 0 to 5, or 0 to 3.
  • the content of the component (B) in the anti-vulcanizing agent for unvulcanized rubber of the present invention can be selected according to the purpose, and for example, relative to the total mass of the components (A) to (D), 0.1 mass% or more and 10 mass% or less, 0.3 mass% or more and 8 mass% or less, or 0.5 mass% or more and 6 mass% or less.
  • a commercial item can be used for a component (B), for example in preparation of the non-vulcanized rubber adhesive of this invention.
  • the addition mole number of EO and the addition mole number of PO in the formula (1) each have a distribution and are represented by an average addition mole number. Therefore, for example, when a commercial product satisfying the formula (1) and the average addition mole number (0 to 10) is used, the component (B) is added to the prepared composition (the adhesion inhibitor for unvulcanized rubber). Can be contained.
  • the component (C) is a nonionic surfactant other than the component (B) (that is, other than the component (B)) as described above.
  • the nonionic surfactant (C) functions, for example, to impart wettability and dispersibility to water to the non-vulcanized rubber adhesive. It does not specifically limit as nonionic surfactant (C) (component (C)), For example, the nonionic surfactant of a polyoxyalkylene alkyl ether type etc. are mentioned.
  • the nonionic surfactant (C) only one type of nonionic surfactant may be used, or two or more types may be used in combination.
  • the nonionic surfactant (C) is not particularly limited, and in the present invention, for example, among the nonionic surfactants represented by the following formula (2), nonionic surfactants other than the component (B) can be used. .
  • the nonionic surfactant of the following formula (2) reduces the surface tension of the adhesion inhibitor suspension (water dispersion) to the surface of the unvulcanized rubber, together with the anionic surfactant (component (D)) described later.
  • component (D) anionic surfactant
  • R represents an aliphatic hydrocarbon group having 8 to 18 carbon atoms.
  • the aliphatic hydrocarbon group may be linear or branched. Further, it may be either saturated or unsaturated.
  • the number of carbon atoms of R is preferably 12 to 16, and more preferably 12 to 13 from the viewpoint of excellent dispersibility of the component (A).
  • AO represents an oxyalkylene group having 2 to 4 carbon atoms, and x is an average added mole number of AO.
  • x may be, for example, 1 to 30, 1 to 25, or 1 to 20. Specifically, x is preferably 1 or more (that is, not 0) from the viewpoint of preventing the decrease in the surface activity and the decrease in the dispersibility of the component (A).
  • x is preferably 30 or less, more preferably 25 or less, and still more preferably 20 or less.
  • x is preferably in the range of 1 to 30, more preferably in the range of 1 to 25, and further preferably in the range of 1 to 20, the dispersibility of component (A) is further improved, and unvulcanized rubber Even when the surface is highly hydrophobic, it is presumed that adhesion is improved by giving sufficient visco-elasticity to the coating. However, this assumption does not limit the present invention at all.
  • the oxyalkylene group having 2 to 4 carbon atoms is, for example, a polymerization unit formed by addition polymerization of an alkylene oxide having 2 to 4 carbon atoms.
  • Specific examples of the oxyalkylene group having 2 to 4 carbon atoms include an oxyethylene group (EO) formed by addition of ethylene oxide, an oxypropylene group (PO) formed by addition of propylene oxide, and There is an oxybutylene group (BO) formed by addition of butylene oxide.
  • (AO) x contains at least an oxyethylene group (EO) in its structure, and may contain only an oxyethylene group (EO), or may contain an oxyethylene group (EO) and another oxyalkylene group. .
  • (AO) x contains two or more of an oxyethylene group (EO), an oxypropylene group (PO), and an oxybutylene group (BO), these groups may be arranged in block form , May be arranged randomly.
  • (AO) x is preferably composed only of an oxyethylene group (EO), for example, in terms of excellent balance of hydrophilicity and hydrophobicity.
  • the content of the nonionic surfactant (C) in the anti-adhesive agent for unvulcanized rubber of the present invention can be selected according to the purpose, and for example, the total mass of the components (A) to (D) In contrast, it may be 1% by mass or more and 20% by mass or less, 3% by mass or more and 18% by mass or less, or 3% by mass or more and 15% by mass or less. If the content of the nonionic surfactant (C) is not less than the lower limit value, the wettability of the anti-deposition liquid (anti-deposition agent water dispersion liquid) with the rubber is insufficient, which causes problems such as repelling. If the amount is less than the upper limit value, the amount of foaming increases, and the problem of overflowing from equipment during use is less likely to occur.
  • the anionic surfactant (D) for example, imparts wettability and dispersibility to water to the anti-adhesive agent for unvulcanized rubber To work.
  • the anionic surfactant (D) (component (D)) is not particularly limited, and examples thereof include the following (1) to (4).
  • the anionic surfactant (D) only one anionic surfactant may be used, or two or more anionic surfactants may be used in combination.
  • the counter ion of the anionic surfactant is not particularly limited, and alkali metals such as sodium and potassium, and alkanolamines such as monoethanolamine and diethanolamine are preferable. One of these may be used alone, or two or more may be used in combination.
  • an ⁇ -olefin sulfonate and a dialkyl sulfosuccinate are preferable because an adhesive suspension (water dispersion) which is excellent in wettability with the surface of the unvulcanized rubber can be obtained.
  • ⁇ -olefin sulfonate ⁇ -olefin sulfonate Na salt “Lipolan® LB-840” (Lion Specialty Chemicals Inc.)
  • dialkyl sulfosuccinate dioctyl sulfosuccinate Na salt More preferable.
  • the content of the anionic surfactant (D) in the anti-adhesive agent for unvulcanized rubber of the present invention can be selected according to the purpose, and for example, the total mass of the components (A) to (D) In contrast, it may be 0.5% by mass or more and 10% by mass or less, 0.8% by mass or more and 8% by mass or less, or 1% by mass or more and 5% by mass or less. If the content of the anionic surfactant (D) is not less than the lower limit value, the wettability of the anti-adhesive solution (anti-adhesive water dispersion) with the rubber is insufficient, which causes problems such as repelling. If the amount is less than the upper limit value, the amount of foaming increases, and the problem of overflowing from equipment during use is less likely to occur.
  • the non-vulcanized rubber adhesive of the present invention may or may not contain optional components other than the components (A) to (D).
  • the anti-vulcanization agent for unvulcanized rubber of the present invention optionally contains, for example, as an optional component, an additive such as an antifoaming agent, a wettability aid, a viscosity aid, a foreign matter reduction aid, etc. It may be
  • the antifoaming agent is not particularly limited, and examples thereof include oil and fat based antifoaming agents such as castor oil, sesame oil, linseed oil and animal and vegetable oils; isoamyl stearate, distearyl succinate, ethylene glycol distearate, butyl stearate and the like Fatty acid ester antifoaming agent; alcohol antifoaming agent such as polyoxyalkylene monohydric alcohol di-t-amyl phenoxyethanol; ether such as di-t-amyl phenoxyethanol 3-heptyl cellosolvonyl cellosolve 3-heptyl carbitol Antifoaming agent; Phosphate ester antifoaming agent such as tributyl osphate, tris (butoxyethyl) phosphate; Amine antifoaming agent such as diamylamine; Amide antifoaming agent such as polyalkyleneamide, acylate polyamine; Mineral
  • the wettability adjuvant is not particularly limited, and examples thereof include alcohols, more specifically, for example, methanol, ethanol, glycerin, 1,3-butanediol, propylene glycol, dipropylene glycol, pentylene Examples thereof include glycol, hexylene glycol, sorbitol, maltitol, sucrose, erythritol, xylitol, polyethylene glycol, polypropylene glycol, adducts of polyhydric alcohol with ethylene oxide and propylene oxide, and the like.
  • the wettability auxiliary may be used alone or in combination of two or more.
  • the viscosity adjuvant is not particularly limited, and examples thereof include water-soluble polymers, and more specifically, for example, proteins, polyacrylic acid, sodium polyacrylate, polyacrylamide, polyvinyl alcohol, polyvinyl pyrrolidone , Synthetic water-soluble polymers such as polyethylene glycol, polyethylene oxide, water-soluble urethane resin, water-soluble melamine resin, water-soluble epoxy resin, water-soluble butadiene resin, water-soluble phenol resin, etc; xanthan gum, guar gum, welan gum, locust bean gum, diyu Tang gum, tamarind gum, tamarind seed gum, tragacanth gum, gum arabic, carrageenan, rhamsan gum, succinoglycan, tara gum, gellan gum, karaya gum, pectin, alginic acid derivatives, cellulose ethers, etc. It includes water-soluble polymer.
  • the viscosity adjuvant may be used alone or in combination of two or more.
  • the anti-vulcanization rubber non-vulcanized rubber of the present invention may contain water, for example, for the purpose of suppressing the powder flow.
  • the water content is not particularly limited, and is, for example, about 2 to 3% by mass.
  • the anti-vulcanizing rubber adhesive of the present invention contains an inorganic powder (component (A)). Since the inorganic powder is a component responsible for the adhesion, in order to obtain a good adhesion, as described above, the content in the adhesion agent is preferably equal to or more than the lower limit. On the other hand, if the content in the adhesion protection agent is less than or equal to the upper limit value, the effect of reducing the hardness of the adhesion protection agent dried and solidified product can be more effectively obtained, and a better foreign matter suppression effect can be obtained. In addition, although some inorganic powder distribute
  • the method for producing the anti-vulcanizing agent for unvulcanized rubber of the present invention is not particularly limited.
  • all components of the anti-vulcanizing agent for unvulcanized rubber that is, components (A) to (D), It can be produced by mixing with the optional components blended accordingly.
  • an apparatus used for mixing for example, an apparatus having a configuration in which a stirring blade is provided in a container can be used.
  • a powder mixer capable of rocking stirring or stirring such as a ribbon mixer, a vertical screw mixer and the like.
  • super mixer made by Kawata Co., Ltd.
  • high speed mixer made by Earth Technica Co., Ltd.
  • Newgram Machine made by Seishin Enterprise Co., Ltd.
  • SV mixer made by Shinko Environmental Solutions Co., Ltd.
  • dry crushers such as jaw crushers, gyret crushers, cone crushers, roll crushers, impact crushers, hammer crushers, rod mills, ball mills, vibratory rod mills, vibratory ball mills, disc mills, jet mills, cyclone mills, etc. Good.
  • the liquid component is used as a liquid for producing the anti-vulcanized rubber anti-adhesive agent.
  • the ratio of the total mass of the components (A) to (D) to the whole of the powder adhesive may be 100% by mass.
  • the ratio of the sum total of mass of component (A)-(D) is not specifically limited, For example, it is with respect to the whole mass of the non-vulcanized rubber adhesive agent. For example, it is 80 mass% or more, 85 mass% or more and 97 mass% or less, or 85 mass% or more and 95 mass% or less.
  • the anti-adhesive agent for unvulcanized rubber of the present invention can be used, for example, as the anti-adhesive agent aqueous dispersion for unvulcanized rubber of the present invention.
  • the method for producing the anti-adhesive agent water dispersion for unvulcanized rubber of the present invention is not particularly limited. For example, as described above, after all the components of the anti-vulcanization rubber adhesive of the present invention are mixed to produce the anti-vulcanization rubber adhesive of the present invention, it is dispersed in water, The anti-adhesive agent aqueous dispersion for unvulcanized rubber of the present invention may be used.
  • each component of the anti-vulcanization agent for unvulcanized rubber of the present invention is dissolved or dispersed in water, respectively, and mixed in water to obtain an aqueous dispersion of the anti-vulcanization rubber for anti-vulcanization rubber of the present invention. It is also good.
  • the method for dissolving or dispersing the components is not particularly limited, and, for example, a powdery adhesion inhibitor for unvulcanized rubber may be dispersed in a predetermined amount of water in a stirring tank.
  • the content of the component (A), the component (B), the component (C), and the component (D) in the dispersion liquid of the anti-adhesive agent for unvulcanized rubber of the present invention is not particularly limited.
  • the total content of components (A) to (D) with respect to the total mass of components other than water in the dispersion of aqueous adhesion inhibitor for unvulcanized rubber is, for example, 90% by mass or more and 100% by mass or less, 90% by mass or more and 99% by mass or less, or 93% by mass or more and 98% by mass or less.
  • the method for producing an adhesion-prevented unvulcanized rubber using the anti-vulcanizing agent for unvulcanized rubber of the present invention comprises, for example, adhering the anti-vulcanizing agent for unvulcanized rubber of the present invention to the surface of the unvulcanized rubber It has an anti-sticking treatment process to make it be non-sticking treatment.
  • the non-bonded, non-vulcanized rubber thus produced can prevent, for example, non-vulcanized rubbers from adhering to each other and not coming off even when stacked or folded and stored.
  • the adhesion-preventing treatment step for example, the aqueous dispersion of the adhesion-preventing agent for unvulcanized rubber of the present invention is attached to the surface of the unvulcanized rubber, and water is further evaporated to obtain the unvulcanized rubber. It may be a step in which the adhesion preventing agent for unvulcanized rubber of the present invention is attached to the surface. More specifically, in the adhesion prevention treatment step, the suspension adhesion is made such that the dispersion liquid for adhesion of non-vulcanized rubber according to the present invention (adhesive suspension) is adhered to the surface of unvulcanized rubber. And drying the adhesion inhibitor suspension on the surface of the unvulcanized rubber to form a coating composed of the adhesion inhibitor on the surface of the unvulcanized rubber. Is preferred. Such a deposition process is called, for example, a wet process.
  • the wet method is not particularly limited.
  • the wet method may be performed in the same manner as a wet method for a general non-vulcanized rubber adhesive It is.
  • the concentration of the adhesion preventing agent for unvulcanized rubber of the present invention in the adhesion preventing agent suspension (water dispersion liquid) is not particularly limited, and can be arbitrarily adjusted, for example, as described above, More specifically, for example, it can be 2 to 3% by mass.
  • the adhesion inhibitor suspension is adhered to unvulcanized rubber in a high temperature state (for example, about 80 to 150 ° C.) by heat when it is formed into a sheet or the like. It is preferable to
  • the suspension adhesion step for example, a method of spraying an antiadhesive agent suspension onto an unvulcanized rubber with a shower device, and an unvulcanized rubber in a tank containing the adhesive agent suspension.
  • the dip method which is immersed for a short time is mentioned.
  • coat an antiadhesive agent suspension to unvulcanized rubber using a coating device may be employ
  • the rubber type to which the anti-vulcanization rubber non-vulcanizing agent of the present invention can be applied is not particularly limited as long as it is unvulcanized rubber.
  • the rubber include rubbers such as natural rubber (NR), butadiene rubber (BR), styrene butadiene rubber (SBR), IIR (butyl rubber) and EPDM (ethylene propylene rubber), and plural kinds of them. Included are mixed rubbers.
  • Examples 1 to 16 and Comparative Examples 1 to 3 Each component was kneaded at a weight (mass) ratio shown in the following Tables 1 and 2 to prepare an adhesion preventive agent of each example consisting of a uniform powder. Then, the obtained deposition inhibitor was added to tap water while stirring to prepare a deposition inhibitor suspension in which the concentration of the deposition inhibitor was 2% by mass. In Examples 1 to 16, as shown in Table 1 below, all the components (A) to (D) were blended.
  • Comparative Example 1 blended the components (A), (C) and (D), but did not blend the component (B), and Comparative Example 2 contained the component (A) ), (B) and (D) were blended, but component (C) was not blended, and in Comparative Example 3, components (A), (B) and (C) were blended, but component (D) It did not mix.
  • the product name (trade name) and manufacturer of each component described in the following Tables 1 and 2 are shown in the following Table 3.
  • the addition mole number of the oxyethylene group (EO) in the component (B) and the component (C) described in the following Tables 1 to 3 is an average addition mole number.
  • the homogeneity of the anti-adhesive dry film (film of anti-adhesive dry / cured product) and the thickness of the film (covered with uniform film thickness) are visually observed. It confirmed in 5 steps of following 1-5.
  • 4 A homogeneous film in which the film is not in the form of vertical stripes or unevenness.
  • the film is a somewhat thick homogeneous film not having vertical stripes or unevenness.
  • adhesion is achieved only by immersing the rubber, which is drawn at 80 to 120 ° C. and whose surface is in a high temperature state, in the adhesive suspension for a very short time (about 1 second) It is preferable that the adhesion preventing agent can be left on the rubber surface in a uniform thin film state without unevenness such as vertical stripes or unevenness even if water evaporates rapidly from the agent suspension.
  • the rubber sheet was cut into 6 cm ⁇ 15 cm, and two sheets were stacked to obtain a test piece in a laminated state.
  • a load of 1 t / m 2 was applied to the test piece in the vertical direction from one side, and left at 60 ° C. for 12 hours.
  • test piece was returned to room temperature, and a 180 ° peel test was carried out using a tensile tester [AGS-500D type, SHIMADZU] to measure peel resistance (N / cm) at a tensile rate of 300 mm / min.
  • AGS-500D type, SHIMADZU tensile tester
  • the peeling resistance When the peeling resistance is 2.0 N / cm or less, the rubber sheet can be peeled without a large load, and it can be judged that the deposition resistance is good. When the peeling resistance is more than 2.0 N / cm, the load when peeling off the rubber sheet is large, and it can be judged that the deposition resistance is poor. Furthermore, when the peeling resistance is more than 3.0 N / cm, the rubber sheet is in close contact, and it can be judged that peeling at a normal work site is difficult.

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  • Chemical Kinetics & Catalysis (AREA)
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Abstract

La présente invention vise à obtenir un agent antistatique pour caoutchouc non vulcanisé, l'adhérence à la surface de caoutchouc pouvant être améliorée sans recourir à une régulation de la viscosité d'une dispersion aqueuse. Pour atteindre cet objectif, l'agent antistatique pour caoutchouc non vulcanisé est caractérisé en ce qu'il contient les constituants (A) à (D) suivants : (A) une poudre inorganique ; (B) un composé représenté par la formule (1) ; (C) un tensioactif non ionique autre que le constituant (B) ; et (D) un tensioactif anionique (dans la formule (1), R1 est un groupe hydrocarboné linéaire ou ramifié en C4-20, EO est un groupe oxyéthylène, PO est un groupe oxypropylène, m est un nombre de 0 à 10 indiquant le nombre moyen de moles d'addition d'EO, n est un nombre de 0 à 10 indiquant le nombre moyen de moles d'addition de PO, et le symbole / indique que de l'EO et du PO peuvent être ajoutés par addition aléatoire ou addition séquencée).
PCT/JP2018/041929 2017-11-16 2018-11-13 Agent antistatique pour caoutchouc non vulcanisé et dispersion aqueuse dudit agent antistatique pour caoutchouc non vulcanisé WO2019098171A1 (fr)

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JP2017220877A JP7037921B2 (ja) 2017-11-16 2017-11-16 未加硫ゴム用防着剤および未加硫ゴム用防着剤水分散液

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Citations (5)

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JP2013124292A (ja) * 2011-12-14 2013-06-24 Matsumoto Yushi Seiyaku Co Ltd 未加硫ゴム用防着剤
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