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WO2010061630A1 - Adjuvant de traitement pour moulage par expansion, composition de résine de chlorure de vinyle pour moulage par expansion, et corps moulé par expansion - Google Patents

Adjuvant de traitement pour moulage par expansion, composition de résine de chlorure de vinyle pour moulage par expansion, et corps moulé par expansion Download PDF

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Publication number
WO2010061630A1
WO2010061630A1 PCT/JP2009/006436 JP2009006436W WO2010061630A1 WO 2010061630 A1 WO2010061630 A1 WO 2010061630A1 JP 2009006436 W JP2009006436 W JP 2009006436W WO 2010061630 A1 WO2010061630 A1 WO 2010061630A1
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WO
WIPO (PCT)
Prior art keywords
vinyl chloride
chloride resin
molding
foam
mass
Prior art date
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Ceased
Application number
PCT/JP2009/006436
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English (en)
Japanese (ja)
Inventor
上野尚文
青木秀夫
笠井俊宏
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Mitsubishi Chemical Corp
Original Assignee
Mitsubishi Rayon Co Ltd
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 Mitsubishi Rayon Co Ltd filed Critical Mitsubishi Rayon Co Ltd
Priority to CN200980147067.5A priority Critical patent/CN102224192B/zh
Priority to JP2009553862A priority patent/JP5636673B2/ja
Publication of WO2010061630A1 publication Critical patent/WO2010061630A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
    • 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
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
    • 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
    • C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
    • C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
    • C08J2327/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
    • C08J2327/06—Homopolymers or copolymers of vinyl chloride
    • 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
    • C08J2433/00—Characterised by the use of homopolymers or 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 of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers

Definitions

  • the present invention relates to a foam molding processing aid, a vinyl chloride resin composition for foam molding containing the processing aid, and a foam molded article obtained by molding the resin composition.
  • Vinyl chloride-based resins are widely used as general-purpose resin materials with high utility value because they have excellent properties such as chemical resistance, impact resistance, and weather resistance, and are inexpensive.
  • Foam molding is one of the preferred applications, and for example, attempts are being made to produce foam molded articles as building materials oriented toward synthetic wood and the like.
  • the elongation characteristics and the melt strength are insufficient, resulting in a heterogeneous foam cell structure, Arbitrary high expansion ratios cannot be achieved, and it is difficult to obtain satisfactory foamed molded articles.
  • Patent Document 1 discloses that 20 to 50% by mass of an alkyl methacrylate having an alkyl group having 3 to 5 carbon atoms.
  • a processing aid for foam molding comprising a copolymer obtained by copolymerizing a monomer component to be contained.
  • Patent Document 2 discloses a vinyl chloride resin composition for foam molding containing polyisobutyl methacrylate having a number average molecular weight of 100,000 or less.
  • An object of the present invention is to provide a processing aid for foam molding for obtaining a foam molded article having fine and uniform foam cells and having an excellent molded appearance.
  • the present invention is a processing aid for foam molding comprising a polymer (A) obtained by polymerizing a monomer component (a) containing 65% by mass or more of isobutyl methacrylate, wherein the polymer (A ) Is a processing aid for foam molding in which 0.1 g is dissolved in 100 ml of chloroform and the reduced viscosity ( ⁇ sp / c) measured at 25 ° C. is 4 or more.
  • the present invention also relates to a vinyl chloride resin composition for foam molding, comprising 1 to 25 parts by mass of the foam molding processing aid per 100 parts by mass of the vinyl chloride resin.
  • the present invention is a foam molded product obtained by molding the vinyl chloride resin composition for foam molding.
  • the vinyl chloride resin composition By blending the processing aid for foam molding of the present invention, the vinyl chloride resin composition can be efficiently melted and kneaded and the melt strength can be increased. Thereby, in the foam molding using the vinyl chloride resin composition, it is possible to obtain a foam molded article having fine and uniform foam cells and having an excellent molded appearance.
  • the processing aid for foam molding of the present invention contains a polymer (A) obtained by polymerizing a monomer component (a) containing isobutyl methacrylate.
  • the content of isobutyl methacrylate in the monomer component (a) (100% by mass) is 65% by mass or more, preferably 70% by mass or more, and more preferably 76% by mass or more.
  • the content of isobutyl methacrylate in the monomer component (a) (100% by mass) is 100% by mass or less, preferably 99% by mass or less, more preferably 98% by mass or less.
  • the content of isobutyl methacrylate in the monomer component (a) is 65% by mass or more, the vinyl chloride resin composition for foam molding can be efficiently melted and kneaded, resulting in fine and uniform foaming.
  • the cell structure and high foaming ratio can be easily achieved.
  • the monomer component (a) may contain other monomers as necessary.
  • Examples of other monomers include methacrylic acid esters such as methyl methacrylate, ethyl methacrylate, propyl methacrylate, n-butyl methacrylate, t-butyl methacrylate, pentyl methacrylate, 2-ethylhexyl methacrylate; Acrylic acid esters such as methyl acrylate, ethyl acrylate, n-butyl acrylate, isobutyl acrylate, t-butyl acrylate, 2-ethylhexyl acrylate, benzyl acrylate, phenyl acrylate; styrene, ⁇ -methylstyrene, vinyl Examples thereof include aromatic vinyl monomers such as toluene; vinyl cyanide monomers such as acrylonitrile and methacrylonitrile; vinyl esters such as vinyl acetate; and acid anhydrides such as maleic anhydride.
  • methacrylic acid esters such as methyl
  • the content of other monomers in the monomer component (a) (100% by mass) is 35% by mass or less, preferably 30% by mass or less, more preferably 24% by mass or less.
  • the content of other monomers in the monomer component (a) (100% by mass) is 0% by mass or more, preferably 1% by mass or more, more preferably 2% by mass or more.
  • the volume ratio of the compound at the time of blending with the vinyl chloride resin is not reduced, the recoverability in the process of recovering the foaming processing aid as a powder is not impaired, and the powder blocking is not impaired.
  • polyfunctional monomers such as divinylbenzene, allyl methacrylate, 1,3-butanediol dimethacrylate, triallyl cyanurate may be contained.
  • the content of the polyfunctional monomer in the monomer component (a) (100% by mass) is preferably 0.01 to 2.0% by mass, more preferably 0.1 to 2.0% by mass. is there.
  • the apparent molecular weight can be increased and the foam moldability can be improved.
  • the content is 2.0% by mass or less, the foaming ratio is not reduced and the molded appearance is not deteriorated.
  • the reduced viscosity ( ⁇ sp / c) of the polymer (A) constituting the processing aid for foam molding is 4 or more, preferably 5 or more.
  • the reduced viscosity ( ⁇ sp / c) of the polymer (A) constituting the processing aid for foam molding is preferably 20 or less, more preferably 15 or less.
  • the reduced viscosity ( ⁇ sp / c) is 20 or less, a foamed molded article having a good molded appearance can be easily obtained without imparting excessive melt strength.
  • This reduced viscosity ( ⁇ sp / c) is a value measured at 25 ° C. by dissolving 0.1 g of the polymer (A) in 100 ml of chloroform.
  • Examples of the method for adjusting the reduced viscosity ( ⁇ sp / c) of the polymer (A) within this range include methods such as adjustment of the amount of chain transfer agent and initiator used during polymerization and adjustment of the polymerization temperature. It is done. In order to obtain a foamed molded article having a good surface appearance, a method of adjusting using a chain transfer agent is preferred.
  • polymerization method for obtaining the polymer (A) examples thereof include an emulsion polymerization method, a suspension polymerization method, and a solution polymerization method.
  • polymerization may be any of lump addition, dripping, and divided addition.
  • the copolymer may be either a random copolymer or a block copolymer, but a random copolymer obtained by batch addition of monomers is preferred.
  • Examples of the emulsifier used in the emulsion polymerization method include anionic surfactants such as fatty acid salt, alkyl sulfate ester salt, alkylbenzene sulfonate salt, alkyl phosphate ester salt, dialkyl sulfosuccinate salt; polyoxyethylene alkyl ether, polyoxy Nonionic surfactants such as ethylene fatty acid esters, sorbitan acid fatty esters, and glycerin fatty acid esters; and cationic surfactants such as alkylamine salts.
  • anionic surfactants such as fatty acid salt, alkyl sulfate ester salt, alkylbenzene sulfonate salt, alkyl phosphate ester salt, dialkyl sulfosuccinate salt
  • polyoxyethylene alkyl ether polyoxy Nonionic surfactants such as ethylene fatty acid esters, sorbitan acid fatty esters, and glycerin fatty
  • an appropriate pH adjusting agent can be used to prevent hydrolysis of the alkyl methacrylate.
  • pH regulators include boric acid-potassium chloride-potassium hydroxide, potassium dihydrogen phosphate-disodium hydrogen phosphate, boric acid-potassium chloride-potassium carbonate, citric acid-potassium hydrogen citrate, diphosphate
  • potassium hydrogen-borax and disodium hydrogen phosphate-citric acid examples include potassium hydrogen-borax and disodium hydrogen phosphate-citric acid.
  • a polymerization initiator is usually used.
  • the polymerization initiator include persulfates such as potassium persulfate; organic peroxides such as t-butyl hydroperoxide, cumene hydroperoxide, benzoyl peroxide, lauroyl peroxide; azobisisobutyronitrile, etc.
  • a redox initiator comprising a combination of the above persulfate and a reducing agent such as sodium formaldehyde sulfoxylate; a redox initiator comprising a combination of the above organic peroxide and a reducing agent.
  • the obtained polymer (A) latex is cooled, and then an acid such as sulfuric acid, hydrochloric acid, phosphoric acid, Alternatively, the polymer (A) is precipitated by acid coagulation or salting out with an electrolyte such as a salt of aluminum chloride, calcium chloride, magnesium sulfate, aluminum sulfate, calcium acetate or the like, followed by further filtration, washing and drying. be able to. It can also be recovered by various methods such as spray drying and freeze drying.
  • spray drying In order to promote the formation of fine and uniform foam cells in the vinyl chloride resin composition for foam molding and to obtain a good molded appearance, it is preferable to use spray drying.
  • the spray drying conditions it is preferable that the generated particles satisfy the following conditions, and spray drying can be performed under any conditions for generating such particles. That is, among the powders formed by spray drying, it is preferable that the content of the powder in which the inside of the particles are fused and become homogeneous is less than 50% by mass, more preferably less than 25% by mass. It is.
  • the homogeneous foamed cell structure and high foaming ratio which are the object of the present invention, tend to be expanded, and the bulk ratio of the compound when blended with a vinyl chloride resin is further increased. Can be suppressed.
  • the processing aid for foam molding of the present invention may contain additives as necessary in addition to the polymer (A) of the present invention.
  • additives for example, powder flow properties such as aerosil and inorganic salts may be modified. And a quality agent.
  • the vinyl chloride resin composition for foam molding of the present invention comprises 1 to 25 parts by mass, preferably 5 to 15 parts by mass of a processing aid for foam molding per 100 parts by mass of the vinyl chloride resin. is there.
  • a processing aid for foam molding By making the blending ratio of the processing aid for foam molding to be 1 part by mass or more, the effect of imparting melt strength is enhanced, the foam has a high foaming ratio with fine and uniform foam cells, and has a good molding appearance. A molded body is easily obtained. Moreover, the fall of the shaping
  • the vinyl chloride resin of the present invention is not particularly limited.
  • a vinyl chloride homopolymer a post-chlorinated vinyl chloride polymer, a partially crosslinked vinyl chloride polymer, a copolymer of vinyl chloride and another vinyl monomer.
  • a vinyl chloride copolymer a vinyl chloride copolymer.
  • These vinyl chloride resins may be used alone or in combination of two or more.
  • the proportion of other vinyl monomers used is preferably 30% by mass or less from the viewpoint of maintaining the original characteristics of the vinyl chloride resin.
  • Examples of other vinyl monomers copolymerized with vinyl chloride include fatty acid vinyl esters such as vinyl acetate and vinyl propionate; alkyl methacrylates such as methyl methacrylate and ethyl methacrylate; olefins such as ethylene and propylene; Examples thereof include aromatic vinyl monomers such as styrene; alkyl vinyl ethers such as vinyl methyl ether and vinyl butyl ether; unsaturated carboxylic acids such as acrylic acid, methacrylic acid and maleic anhydride, or acid anhydrides thereof. These may be used alone or in combination of two or more.
  • the average degree of polymerization of the vinyl chloride resin is preferably within the range of 300 to 5000, and more preferably within the range of 500 to 3000. If the average degree of polymerization of the vinyl chloride resin is 300 or more, it tends to suppress the reduction of the foaming ratio and the mechanical properties of the foam molded article, and if it is 5000 or less, it tends to be able to suppress the deterioration of workability.
  • the production method of the vinyl chloride resin is not particularly limited, and examples thereof include an emulsion polymerization method, a suspension polymerization method, and a bulk polymerization method.
  • the method for obtaining the vinyl chloride resin composition for foam molding of the present invention is not particularly limited, and a known melt-kneading method can be used.
  • a predetermined amount of vinyl chloride resin and processing aid for foam molding can be used.
  • a vinyl chloride resin composition for foam molding can be obtained by kneading extruders such as single-screw extruders and twin-screw extruders that are mixed with Henschel mixers, Banbury mixers, V-type mixers, ribbon blenders, etc. These are manufactured by being molded into various desired shapes.
  • the vinyl chloride resin composition for foam molding of the present invention can be applied to any foam molding method such as free foam molding and Selka foam molding.
  • the vinyl chloride resin and the foaming molding processing aid are blended to obtain the vinyl chloride resin composition for foam molding of the present invention, depending on the purpose, the effects of the present invention are not impaired.
  • various additives such as conventional stabilizers, lubricants, fillers, impact modifiers, and pigments can be added as necessary.
  • foaming agent examples include azo foaming agents such as azobisisobutyronitrile and azodicarbonamide; N, N′-dinitrosopentamethylenetetramine, N, N′-dimethyl-N, N′-dinitrosotephthale Nitroso-based foaming agents such as amides; inorganic foaming agents such as sodium bicarbonate can be used, and these may be used alone or in combination of two or more.
  • stabilizers include lead stabilizers such as tribasic lead sulfate, dibasic lead phosphite, basic lead sulfite, and lead silicate, and metals such as potassium, magnesium, barium, zinc, cadmium, and lead.
  • a metal soap stabilizer derived from a fatty acid such as 2-ethylhexanoic acid, lauric acid, myristic acid, palmitic acid, stearic acid, isostearic acid, hydroxystearic acid, oleic acid, ricinoleic acid, linoleic acid, behenic acid;
  • the lubricant examples include liquid hydrocarbons, natural paraffins, micro waxes, synthetic paraffins, pure hydrocarbon lubricants such as low molecular weight polyethylene, halogenated hydrocarbon lubricants, fatty acid lubricants such as higher fatty acids and oxy fatty acids, fatty acids
  • fatty acid amide lubricants such as amides and bisfatty acid amides
  • lower alcohol esters of fatty acids polyhydric alcohol esters of fatty acids such as glycerides, polyglycol esters of fatty acids, fatty alcohol esters of fatty acids (ester waxes) and the like
  • Metal soap fatty alcohol, polyhydric alcohol, polyglycol, polyglycerol, fatty acid and polyhydric alcohol partial ester, fatty acid and polyglycol, polyglycerol partial ester.
  • the filler examples include carbonates such as heavy calcium carbonate, precipitated calcium carbonate, and colloidal calcium carbonate, aluminum hydroxide, magnesium hydroxide, titanium oxide, clay, mica, talc, wollastonite, zeolite, silica,
  • carbonates such as heavy calcium carbonate, precipitated calcium carbonate, and colloidal calcium carbonate
  • aluminum hydroxide magnesium hydroxide
  • titanium oxide titanium oxide
  • clay clay
  • mica mica
  • talc wollastonite
  • zeolite silica
  • silica silica
  • organic fibers such as polyamide can be used. These may be used alone or in combination of two or more.
  • impact modifiers include polybutadiene, polyisoprene, polychloroprene, fluororubber, styrene-butadiene copolymer rubber, acrylonitrile-styrene-butadiene copolymer rubber, and styrene-butadiene-styrene block copolymer rubber.
  • Styrene-isoprene-styrene block copolymer rubber styrene-ethylene-butylene-styrene block copolymer rubber, ethylene-propylene copolymer rubber, and ethylene-propylene-diene copolymer rubber (EPDM).
  • organic pigments and inorganic pigments can be used, for example, organic pigments such as azo, nitroso, nitro, perinone, phthalocyanine, quinacridone, titanium oxide, and zinc oxide.
  • organic pigments such as iron oxide, sulfide, carbon black, carbonate, metal powder, chromate, ferrocyanide, sulfate, silicate, and phosphate It is done.
  • pigments may be used alone or in combination of two or more.
  • flame retardants such as chlorinated paraffin, aluminum hydroxide, antimony trioxide, halogen compounds, mold release agents, fluidity improvers, colorants, antistatic agents, surfactants, antifogging agents, antibacterial agents, etc. As long as the effect of the present invention is not impaired, it can be arbitrarily blended depending on the purpose.
  • the obtained vinyl chloride resin composition for foam molding can be applied to ordinary known molding methods such as injection molding, hollow molding, extrusion molding and the like in addition to foam extrusion molding to obtain various molded products. it can.
  • a plate-like foam molded body, a cylindrical foam molded body, and an irregular-shaped foam molded body are obtained, and members for a wide range of building materials, synthetic wood, etc .; for display members, storage cases, etc. It can be used for foamed boards, industrial members that require heat insulation and heat retention.
  • the vinyl chloride resin composition for foam molding can be efficiently kneaded and the melt strength can be increased, resulting in the formation of fine and uniform foam cells.
  • Example 1 In a reaction vessel equipped with a stirrer and a reflux condenser, 230 parts of deionized water was charged, 1.5 parts of sodium dioctyl sulfosuccinate was further added, and the inside of the vessel was replaced with nitrogen gas. Thereafter, 0.15 part of potassium persulfate and 100 parts of isobutyl methacrylate were charged, the external temperature of the reaction vessel was raised to 65 ° C. while stirring, and the mixture was heated and stirred for 2 hours to complete the polymerization, thereby obtaining a latex. The latex was cooled and spray-dried under the conditions of a drying gas inlet temperature of 160 ° C. and a drying gas outlet temperature of 70 ° C.
  • the reduced viscosity ( ⁇ sp / c) of the polymer was 9.7.
  • the obtained polymer (A) powder was used as a foaming processing aid (B-1). 15 parts of the resulting foam molding processing aid (B-1) was mixed in the following composition, blending was completed at an internal temperature of 90 ° C., and a vinyl chloride resin composition for foam molding was obtained.
  • extrusion was performed from a die shape having a diameter of 5 mm under a temperature condition of C1: 150 ° C, C2: 170 ° C, C3: 180 ° C, AD: 190 ° C, D: 190 ° C, and foamed.
  • a molded body was produced.
  • the obtained foamed molded article was evaluated in the following (1) to (3).
  • Specific gravity The obtained foamed molded article was cut and measured with an automatic specific gravity meter (AND-DMA-220: manufactured by Ando Keiki Seisakusho Co., Ltd.).
  • Foam moldability The obtained foam molded article was cut at 10 locations, and the cut surface was observed.
  • Foamed cells with a major axis exceeding 1 mm on each cut surface were counted and evaluated according to the following criteria.
  • Pigment dispersibility confirmed on the surface The surface of the obtained foamed molded article was observed, and the dispersibility of the pigment was evaluated according to the following criteria.
  • Examples 2 to 3 Comparative Examples 1 to 8
  • the composition of the monomer component was changed to the ratio shown in Table 1
  • polymerization and spray drying were performed in the same manner as in Example 1 to obtain a polymer powder, a vinyl chloride resin composition for foam molding, A foamed molded product was obtained.
  • Table 1 shows the evaluation results of the foam molded articles obtained in Examples 1 to 3 and Comparative Examples 1 to 8.
  • i-BMA Isobutyl methacrylate n-BMA: n-butyl methacrylate t-BMA: t-butyl methacrylate MMA: methyl methacrylate n-BA: butyl acrylate n-OM: n-octyl mercaptan
  • a foaming processing aid containing a polymer (A) obtained by polymerizing a monomer component (a) containing 65% by mass or more of isobutyl methacrylate was used.
  • a molded article having excellent pigment dispersibility and foamability could be obtained.
  • i-BMA a remarkable effect is exhibited compared to n-BMA and t-BMA, and the reduced viscosity ( ⁇ sp / c) of the polymer (A) is 4 or more. It should be noted that a remarkable effect is exhibited.
  • foam molding of the present invention it is possible to obtain a foam molded article that forms fine and uniform foamed cells, has a high foaming ratio, and further exhibits an excellent molded appearance.
  • foam moldings can be obtained by various molding methods to obtain plate-like foam moldings, cylindrical foam moldings, and irregular-shaped foam moldings, and members for a wide range of building materials, synthetic wood, etc .; display members, storage It can be used for foam boards oriented to cases and the like, and industrial members that require heat insulation and heat retention.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

La présente invention concerne un corps moulé par expansion de résine de chlorure de vinyle ayant des cellules fines et uniformes et une excellente apparence. L'invention concerne également un adjuvant de traitement pour moulage par expansion qui est utile dans la production du corps moulé, et une composition de résine de chlorure de vinyle pour moulage par expansion. L'adjuvant de traitement pour moulage par expansion comprend un polymère (A) obtenu en polymérisant un monomère (a) contenant au moins 65 % en masse de méthacrylate d'isobutyle, le polymère (A) ayant une viscosité réduite (?sp/c) supérieure ou égale à 4, mesurée à 25 °C en dissolvant 0,1 g du polymère (A) dans 100 ml de chloroforme.
PCT/JP2009/006436 2008-11-28 2009-11-27 Adjuvant de traitement pour moulage par expansion, composition de résine de chlorure de vinyle pour moulage par expansion, et corps moulé par expansion Ceased WO2010061630A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN200980147067.5A CN102224192B (zh) 2008-11-28 2009-11-27 发泡成型用加工助剂、发泡成型用氯乙烯系树脂组合物及发泡成型体
JP2009553862A JP5636673B2 (ja) 2008-11-28 2009-11-27 発泡成形用塩化ビニル系樹脂組成物及び発泡成形体

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2008305157 2008-11-28
JP2008-305157 2008-11-28

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WO2010061630A1 true WO2010061630A1 (fr) 2010-06-03

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WO2017040679A1 (fr) * 2015-08-31 2017-03-09 Rohm And Haas Company Additif pour moulage de mousse, composition de moulage de mousse à base de résine de chlorure de vinyle en contenant et produit moulé en mousse
US10059787B2 (en) 2012-12-27 2018-08-28 Dow Global Technologies Llc Polymerization process for producing ethylene based polymers
US10144791B2 (en) 2013-06-28 2018-12-04 Dow Global Technologies Llc Molecular weight control of polyolefins using halogenated bis-phenylphenoxy catalysts
US10214602B2 (en) 2012-12-27 2019-02-26 Dow Global Technologies Llc Polymerization process for producing ethylene based polymers
US10214622B2 (en) 2012-12-27 2019-02-26 Dow Global Technologies Llc Catalyst systems for olefin polymerization
WO2019078108A1 (fr) * 2017-10-16 2019-04-25 株式会社カネカ Composition de résine de chlorure de vinyle pour moulage de poudre, corps et stratifié moulés en résine de chlorure de vinyle
US10597473B2 (en) 2015-06-30 2020-03-24 Dow Global Technologies Llc Polymerization process for producing ethylene based polymers
US10647797B2 (en) 2015-09-30 2020-05-12 Dow Global Technologies Llc Polymerization process for producing ethylene based polymers
US10870713B2 (en) 2015-09-30 2020-12-22 Dow Global Technologies Llc Procatalyst and polymerization process using the same
US11041027B2 (en) 2015-06-30 2021-06-22 Dow Global Technologies Llc Polymerization process for producing ethylene based polymers
US11066489B2 (en) 2017-09-29 2021-07-20 Dow Global Technologies Llc Bis-phenyl-phenoxy polyolefin catalysts having two methylenetrialkylsilicon ligands on the metal for improved solubility
US11066428B2 (en) 2017-09-29 2021-07-20 Dow Global Technologies Llc Bis-phenyl-phenoxy polyolefin catalysts having a methylenetrialkylsilicon ligand on the metal for improved solubility
US11242415B2 (en) 2017-09-29 2022-02-08 Dow Global Technologies Llc Bis-phenyl-phenoxy polyolefin catalysts having an alkoxy- or amido-ligand on the metal for improved solubility
US11655319B2 (en) 2015-08-31 2023-05-23 Rohm And Haas Company Processing aid for foam molding, a vinyl chloride resin-based foam molding composition comprising the same and a foam molded product
WO2024203561A1 (fr) * 2023-03-31 2024-10-03 日本ゼオン株式会社 Matériau de couverture, procédé de production de matériau de couverture et stratifié
US12252574B2 (en) 2018-08-30 2025-03-18 Dow Global Technologies Llc Bis-phenyl-phenoxy polyolefin procatalysts having two anthracenyl ligands

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