Resin composition, molded article and method for producing resin composition

Abstract

To provide a resin composition which contains a recycled resin and has excellent heat stability and / or weather resistance, a molded article of the same, and a method for producing a resin composition.SOLUTION: A resin composition contains at least one additive selected from the group consisting of a synthetic resin, a phenolic antioxidant, a hindered amine-based light stabilizer, and an ultraviolet absorber, wherein the synthetic resin contains a recycled resin.SELECTED DRAWING: None

Description

[Technical field]

[0001] The present invention relates to a resin composition, a molded article, and a method for producing a resin composition, and more particularly to a resin composition, a molded article, and a method for producing a resin composition that contains recycled resin and has excellent thermal stability and / or weather resistance. [Background technology]

[0002] In recent years, with the rise in environmental awareness, there has been a demand for material recycling of plastics. As a technology relating to material recycling, for example, Patent Document 1 below discloses a resin composition containing a recycled resin and an antioxidant. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Special Publication No. 2022-518047 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the resin composition proposed in the above Patent Document 1 has room for further improvement in terms of thermal stability, weather resistance, and the like.

[0005] Therefore, an object of the present invention is to provide a resin composition which contains a recycled resin and has excellent thermal stability and / or weather resistance, a molded article thereof, and a method for producing the resin composition. [Means for solving the problem]

[0006] As a result of extensive investigations aimed at solving the above problems, the present inventors have found that the above problems can be solved by using various additives, and have thus completed the present invention.

[0007] That is, the present invention is a resin composition comprising a synthetic resin and at least one additive selected from the group consisting of a phenol-based antioxidant, a phosphorus-based antioxidant, a hindered amine-based light stabilizer, and an ultraviolet absorber, wherein the synthetic resin comprises a recycled resin.

[0008] The present invention also relates to a molded article obtained by molding the above-mentioned resin composition.

[0009] Furthermore, the present invention relates to a method for producing a resin composition, comprising a blending step of blending a synthetic resin with at least one additive selected from the group consisting of a phenol-based antioxidant, a phosphorus-based antioxidant, a hindered amine-based light stabilizer, and an ultraviolet absorber, wherein the synthetic resin includes a recycled resin. Effect of the Invention

[0010] According to the present invention, it is possible to provide a resin composition which contains a recycled resin and has excellent thermal stability and / or weather resistance, a molded article thereof, and a method for producing the resin composition. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Hereinafter, an embodiment of the present invention will be described in detail.

[0012] <Resin composition> The resin composition of the present embodiment includes a synthetic resin and at least one additive selected from the group consisting of a phenol-based antioxidant, a phosphorus-based antioxidant, a hindered amine-based light stabilizer, and an ultraviolet absorber. Here, the synthetic resin includes a recycled resin.

[0013] The resin composition of the present embodiment contains a recycled resin, and has excellent thermal stability and / or weather resistance.

[0014] The synthetic resin may be a thermoplastic resin or a thermosetting resin. Examples of the thermoplastic resin include crystalline resins such as polyolefin resins, polyamide resins, polyester resins, polyacetal resins, polylactic acid, and polyphenylene sulfide, polycarbonate resins, styrene resins, acrylic resins, urethane resins, halogen-containing resins, petroleum resins, coumarone resins, polyvinyl alcohol, polyvinyl acetate, and polyphenylene oxide, and non-crystalline resins and thermoplastic elastomers. Examples of the thermosetting resin include phenol resins, urea resins, melamine resins, epoxy resins, unsaturated polyester resins, alkyd resins, and synthetic rubber. The synthetic resin may be contained alone or in combination of two or more types. The synthetic resin may be a copolymer or a polymer alloy.

[0015] The synthetic resin is preferably a thermoplastic resin, more preferably a crystalline resin, and further preferably a polyolefin resin.

[0016] Examples of polyolefin resins include polyethylene resins such as low density polyethylene, linear low density polyethylene, high density polyethylene, crosslinked polyethylene, and ultra-high molecular weight polyethylene, polypropylene (PP) resins such as homopolypropylene, random copolymer polypropylene, block copolymer polypropylene, impact copolymer polypropylene, high impact copolymer polypropylene, and maleic anhydride modified polypropylene, α-olefin polymers such as polybutene-1, cycloolefin polymer, poly-3-methyl-1-butene, poly-3-methyl-1-pentene, and poly-4-methyl-1-pentene, and α-olefin copolymers such as ethylene-methyl methacrylate copolymer and ethylene-vinyl acetate copolymer. From the viewpoint of making the resin composition excellent in heat resistance, the polyolefin resin preferably contains at least one selected from the group consisting of polyethylene resins and polypropylene resins, and more preferably contains a polypropylene resin. The molecular weight, degree of polymerization, density, softening point, proportion of insoluble matter in a solvent, degree of stereoregularity, presence or absence of catalyst residue, types and blending ratios of raw monomers, type of catalyst used in polymerization (e.g., Ziegler catalyst, metallocene catalyst, etc.), etc. of the polyolefin resin are not particularly limited and are selected appropriately.

[0017] In the resin composition of the present embodiment, the synthetic resin may contain an elastomer. In this case, the resin composition has excellent impact resistance. Here, examples of the elastomer include synthetic rubbers such as isoprene rubber, butadiene rubber, acrylonitrile-butadiene copolymer rubber, styrene-butadiene copolymer rubber, fluororubber, and silicone rubber, and thermoplastic elastomers such as polyolefin-based thermoplastic elastomers, polystyrene-based thermoplastic elastomers, polyvinyl chloride-based thermoplastic elastomers, polyurethane-based thermoplastic elastomers, polyester-based thermoplastic elastomers, and polyamide-based thermoplastic elastomers. Among these, thermoplastic elastomers are preferred from the viewpoint of improving the processability of the resin composition and reducing the weight of molded products obtained by molding the resin composition. Furthermore, among the thermoplastic elastomers, polyolefin-based thermoplastic elastomers are particularly preferred. In the resin composition of the present embodiment, when the synthetic resin contains an elastomer, the content of the elastomer can be, for example, 5 to 50% by mass of the entire synthetic resin, preferably 10 to 30% by mass, and more preferably 15 to 25% by mass.

[0018] As described above, in the resin composition of the present embodiment, the synthetic resin includes a recycled resin.

[0019] The recycled resin is a resin obtained by crushing a molded product of a synthetic resin for the purpose of reuse. Examples of the recycled resin include post-consumer recycled (PCR) resin, post-industrial recycled (PIR) resin, and in-process crushed recycled (regrind) resin. In the resin composition of the present embodiment, the recycled resin preferably includes at least one selected from the group consisting of PCR high-density polyethylene resin, PIR high-density polyethylene resin, regrind high-density polyethylene resin, PCR linear low-density polyethylene resin, PIR linear low-density polyethylene resin, regrind linear low-density polyethylene resin, PCR low-density polyethylene resin, PIR low-density polyethylene resin, regrind low-density polyethylene resin, PCR polypropylene resin, PIR polypropylene resin, and regrind polypropylene resin, more preferably includes at least one selected from the group consisting of PCR high-density polyethylene resin, PIR high-density polyethylene resin, regrind high-density polyethylene resin, PCR polypropylene resin, PIR polypropylene resin, and regrind polypropylene resin, and even more preferably includes at least one selected from the group consisting of PCR high-density polyethylene resin, PIR high-density polyethylene resin, PCR polypropylene resin, and PIR polypropylene resin.

[0020] In the resin composition of the present embodiment, the content of the recycled resin can be, for example, 5% by mass or more of the total synthetic resins, and is preferably 5 to 100% by mass, more preferably 10 to 90% by mass, and even more preferably 20 to 80% by mass of the total synthetic resins.

[0021] Examples of phenol-based antioxidants include 2,6-di-tert-butyl-4-ethylphenol, 2-tert-butyl-4,6-dimethylphenol, styrenated phenol, 2,2'-methylenebis(4-ethyl-6-tert-butylphenol), 2,2'-thiobis-(6-tert-butyl-4-methylphenol), 2,2'-thiodiethylenebis[3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate], 2-methyl-4,6-bis(octyl sulfanylmethyl)phenol, 2,2'-isobutylidenebis(4,6-dimethylphenol), isooctyl-3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate, N,N'-hexane-1,6-diylbis[3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionamide], 2,2'-oxamido-bis[ethyl-3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate], 2-ethylhexyl-3-(3',5'-di-tert-butyl-4'-hydroxyphenyl)propionate, 2,2'-ethylenebis(4,6-di-tert-butylphenol), 3,5-di-tert-butyl-4-hydroxybenzenepropanoic acid and C13-15 alkyl ester, 2,5-di-tert-amylhydroquinone, hindered phenol polymer (ADEKA POLYMER ADDITIVES EUROPE SAS) Trade name "AO.OH.98"), 2,2'-methylenebis[6-(1-methylcyclohexyl)-p-cresol], 2-tert-butyl-6-(3-tert-butyl-2-hydroxy5-methylbenzyl)-4-methylphenyl acrylate, 2-[1-(2-hydroxy-3,5-di-tert-pentylphenyl)ethyl]-4,6-di-tert-pentylphenyl acrylate, 6-[3-(3-tert-butyl-4-hydroxy-5-methyl)propoxy]-2,4,8,10-tetra-tert-butylbenz[d,f][1,3,2]-dioxaphosphobin, hexamethylenebis[3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate], bis[monoethyl(3,5-di-tert-butyl-4-hydroxybenzyl)phosphonate]calcium salt, 5,Reaction products of 7-bis(1,1-dimethylethyl)-3-hydroxy-2(3H)-benzofuranone with o-xylene, 2,6-di-tert-butyl-4-(4,6-bis(octylthio)-1,3,5-triazin-2-ylamino)phenol, DL-α-tocopherol (vitamin E), 2,6-bis(α-methylbenzyl)-4-methylphenol, bis[3,3-bis-(4'-hydroxy-3'-tert-butyl-phenyl)butanoic acid] glycol ester, 2,6-di-tert-butyl-p-cresol, 2,6-diphenyl Nyl-4-octadecyloxyphenol, stearyl (3,5-di-tert-butyl-4-hydroxyphenyl)propionate, distearyl (3,5-di-tert-butyl-4-hydroxybenzyl)phosphonate, tridecyl-3,5-tert-butyl-4-hydroxybenzylthioacetate, thiodiethylene bis[(3,5-di-tert-butyl-4-hydroxyphenyl)propionate], 4,4'-thiobis(6-tert-butyl-m-cresol), 2-octylthio-4,6-di(3,5-di-tert-butyl) 1,1,3-tris(2-methyl-4-hydroxyphenoxy)-s-triazine, 2,2'-methylenebis(4-methyl-6-tert-butylphenol), bis[3,3-bis(4-hydroxy-3-tert-butylphenyl)butyric acid]glycol ester, 4,4'-butylidenebis(2,6-di-tert-butylphenol), 4,4'-butylidenebis(6-tert-butyl-3-methylphenol), 2,2'-ethylidenebis(4,6-di-tert-butylphenol), 1,1,3-tris(2-methyl-4-hydroxy-5-tert-butylphenol), rt-butylphenyl)butane, bis[2-tert-butyl-4-methyl-6-(2-hydroxy-3-tert-butyl-5-methylbenzyl)phenyl]terephthalate, 1,3,5-tris(2,6-dimethyl-3-hydroxy-4-tert-butylbenzyl)isocyanurate, 1,3,5-tris(3,5-di-tert-butyl-4-hydroxybenzyl)isocyanurate, 1,3,5-tris(3,5-di-tert-butyl-4-hydroxybenzyl)-2,4,6-trimethylbenzene, 1,3,5-tris[(3,5-di-tert-butyl-4-hydroxyphenyl)propionyloxyethyl]isocyanurate, tetrakis[methylene-3-(3',5'-tert-butyl-4'-hydroxyphenyl)propionate]methane, 2-tert-butyl-4-methyl-6-(2-acryloyloxy-3-tert-butyl-5-methylbenzyl)phenol, 3,9-bis[2-(3-tert-butyl-4-hydroxy-5-methylhydrocinnamoyloxy)-1,1-dimethylethyl]-2,4,8,10-tetraoxaspiro[5.5]undecane, triethylene glycol bis[β- (3-tert-butyl-4-hydroxy-5-methylphenyl)propionate], stearyl-3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid amide, palmityl-3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid amide, myristyl-3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid amide, lauryl-3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid amide, and other 3-(3,5-dialkyl-4-hydroxyphenyl)propionic acid derivatives.

[0022] When the resin composition of the present embodiment contains a phenol-based antioxidant, the content of the phenol-based antioxidant can be, for example, 0.001 to 10 parts by mass relative to 100 parts by mass of the synthetic resin. From the viewpoint of improving the weather resistance of the resin composition and sufficiently suppressing bloom or bleeding of the phenol-based antioxidant from the resin composition, the content of the phenol-based antioxidant is preferably 0.005 to 5 parts by mass, more preferably 0.01 to 1 part by mass, and even more preferably 0.02 to 0.5 parts by mass relative to 100 parts by mass of the synthetic resin.

[0023] Examples of phosphorus-based antioxidants include triphenyl phosphite, diisooctyl phosphite, heptakis(dipropylene glycol)triphosphite, triisodecyl phosphite, diphenyl isooctyl phosphite, diisooctylphenyl phosphite, diphenyl tridecyl phosphite, triisooctyl phosphite, trilauryl phosphite, diphenyl phosphite, tris(dipropylene glycol)phosphite, dioleylhydrogen phosphite, trilauryl trithiophosphite, bis(tridecyl)phosphite, phosphite, tris(isodecyl)phosphite, tris(tridecyl)phosphite, diphenyldecylphosphite, dinonylphenylbis(nonylphenyl)phosphite, poly(dipropylene glycol)phenylphosphite, tetraphenyldipropylene glycol diphosphite, trisnonylphenylphosphite, tris(2,4-di-tert-butylphenyl)phosphite, tris(2,4-di-tert-butyl-5-methylphenyl)phosphite, tris[2-tert-butyl-4-(3-tert-butyl-4-hydroxanthine] bis(2,4-di-tert-butyl-6-methylphenyl)ethyl phosphite, tetra(tridecyl)isopropyl diphenyl ... , tetra(tridecyl)-4,4'-n-butylidenebis(2-tert-butyl-5-methylphenol)diphosphite, hexa(tridecyl)-1,1,3-tris(2-methyl-4-hydroxy-5-tert-butylphenyl)butanetriphosphite, tetrakis(2,4-di-tert-butylphenyl)biphenylene diphosphonite, 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide, (1-methyl-1-propenyl-3-ylidene)tris(1,1-dimethylethyl)-5-methyl-4,1-phenylene)hexatridecyl phosphite, 2,2'-methylenebis(4,6-di-tert-butylphenyl)-2-ethylhexyl phosphite, 2,2'-methylenebis(4,6-di-tert-butylphenyl)-octadecyl phosphite, 2,2'-ethylidenebis(4,6-di-tert-butylphenyl)fluorophosphite, 4,4'-butylidenebis(3-methyl- 6-tert-butylphenylditridecyl)phosphite, tris(2-[(2,4,8,10-tetrakis-tert-butyldibenzo[d,f][1,3,2]dioxaphosphepin-6-yl)oxy]ethyl)amine, 3,9-bis(4-nonylphenoxy)-2,4,8,10-tetraoxa-3,9-diphosphespiro[5,5]undecane, 2,4,6-tri-tert-butyl Phenyl-2-butyl-2-ethyl-1,3-propanediol phosphite, poly4,4'-isopropylidenediphenol C12-15 alcohol phosphite, bis(diisodecyl)pentaerythritol diphosphite, bis(tridecyl)pentaerythritol diphosphite, bis(octadecyl)pentaerythritol diphosphite, bis(nonylphenyl)pentaerythritol diphosphite, bis(2,4-di-tert-butylphenyl)pentaerythritol diphosphite, bis(2,4,6-tri-tert-butylphenyl)pentaerythritol diphosphite, bis(2,6-di-tert-butyl-4-methylphenyl)pentaerythritol diphosphite, bis(2,4-dicumylphenyl)pentaerythritol diphosphite, etc.

[0024] When the resin composition of the present embodiment contains a phosphorus-based antioxidant, the content of the phosphorus-based antioxidant can be, for example, 0.001 to 10 parts by mass relative to 100 parts by mass of the synthetic resin. From the viewpoint of improving the weather resistance of the resin composition and sufficiently suppressing bloom or bleeding of the phosphorus-based antioxidant from the resin composition, the content of the phosphorus-based antioxidant is preferably 0.005 to 5 parts by mass, more preferably 0.01 to 1 part by mass, and even more preferably 0.02 to 0.5 parts by mass relative to 100 parts by mass of the synthetic resin.

[0025] Examples of the hindered amine-based light stabilizer include a polycondensate of 1,2,3,4-butanetetracarboxylic acid tetramethyl ester, 1,2,2,6,6-pentamethyl-4-piperidinol, and β,β,β',β'-tetramethyl-2,4,8,10-tetraoxaspiro[5.5]undecane-3,9-diethanol; a polycondensate of 1,2,3,4-butanetetracarboxylic acid tetramethyl ester, 2,2,6,6-tetramethyl-4-piperidinol, and β,β,β',β'-tetramethyl-2,4,8,10-tetraoxaspiro[5.5]undecane-3,9 -Polycondensation products of diethanol, 2,2,6,6-tetramethyl-4-piperidyl stearate, 1,2,2,6,6-pentamethyl-4-piperidyl stearate, 1,2,2,6,6-pentamethyl-4-piperidyl palmitate, 2,2,6,6-tetramethyl-4-piperidyl benzoate, bis(2,2,6,6-tetramethyl-4-piperidyl)sebacate, tetrakis(2,2,6,6-tetramethyl-4-piperidyl)-1,2,3,4-butanetetracarboxylate, tetrakis(1,2,2,6,6-pentamethyl-4-piperidyl) -1,2,3,4-butanetetracarboxylate, bis(2,2,6,6-tetramethyl-4-piperidyl)-di(tridecyl)-1,2,3,4-butanetetracarboxylate, bis(1,2,2,6,6-pentamethyl-4-piperidyl)-di(tridecyl)-1,2,3,4-butanetetracarboxylate, bis(1,2,2,4,4-pentamethyl-4-piperidyl)-2-butyl-2-(3,5-di-tert-butyl-4-hydroxybenzyl)malonate, 1-(2-hydroxyethyl)-2,2,6,6-tetramethyl-4-piperidyl Polycondensation products of peridinol and diethyl succinate, polycondensation products of 1,6-bis(2,2,6,6-tetramethyl-4-piperidylamino)hexane and 2,4-dichloro-6-morpholino-s-triazine, polycondensation products of 1,6-bis(2,2,6,6-tetramethyl-4-piperidylamino)hexane and 2,4-dichloro-6-tert-octylamino-s-triazine, polycondensation products of 1,5,8,12-tetrakis[2,4-bis(N-butyl-N-(2,2,6,6-tetramethyl-4-piperidyl)amino)-s-triazin-6-yl]-1,5,8,12-Tetraazadodecane, 1,5,8,12-tetrakis[2,4-bis(N-butyl-N-(1,2,2,6,6-pentamethyl-4-piperidyl)amino)-s-triazin-6-yl]-1,5,8-12-tetraazadodecane, 1,6,11-tris[2,4-bis(N-butyl-N-(2,2,6,6-tetramethyl-4-piperidyl)amino-s-triazin-6-ylamino]undecane, 1,6,11-tris[2,4-bis(N-butyl-N-(1,2,2,6,6-pentamethyl-4-piperidyl)amino-s-triazin-6-ylamino]undecane, 3,9-bis[1,1-dimethyl-2-{tris(2,2,6,6 -tetramethyl-4-piperidyloxycarbonyl)butylcarbonyloxy}ethyl]-2,4,8,10-tetraoxaspiro[5.5]undecane, 3,9-bis[1,1-dimethyl-2-{tris(1,2,2,6,6-pentamethyl-4-piperidyloxycarbonyl)butylcarbonyloxy}ethyl]-2,4,8,10-tetraoxaspiro[5.5]undecane, bis(1-undecyloxy-2,2,6,6-tetramethylpiperidin-4-yl)carbonate, 2,2,6,6-tetramethyl-4-piperidylhexadecanoate, 2,2,6,6-tetramethyl-4-piperidyloctadecanoate, and the like.

[0026] When the resin composition of the present embodiment contains a hindered amine-based light stabilizer, the content of the hindered amine-based light stabilizer can be, for example, 0.001 to 10 parts by mass relative to 100 parts by mass of the synthetic resin. From the viewpoint of improving the weather resistance of the resin composition and sufficiently suppressing bloom or bleeding of the hindered amine-based light stabilizer from the resin composition, the content of the hindered amine-based light stabilizer is preferably 0.005 to 5 parts by mass, more preferably 0.01 to 1 part by mass, and even more preferably 0.02 to 0.5 parts by mass relative to 100 parts by mass of the synthetic resin.

[0027] Examples of the ultraviolet absorbent include benzoate-based ultraviolet absorbents, benzophenone-based ultraviolet absorbents, triazine-based ultraviolet absorbents, benzotriazole-based ultraviolet absorbents, cyanoacrylate-based ultraviolet absorbents, etc. These may be used alone or in combination of two or more.

[0028] Examples of the benzoate-based ultraviolet absorbers include phenyl salicylate, resorcinol monobenzoate, 2,4-di-tert-butylphenyl-3,5-di-tert-butyl-4-hydroxybenzoate, octyl (3,5-di-tert-butyl-4-hydroxy)benzoate, dodecyl (3,5-di-tert-butyl-4-hydroxy)benzoate, tetradecyl (3,5-di-tert-butyl-4-hydroxy)benzoate, hexadecyl (3,5-di-tert-butyl-4-hydroxy)benzoate, octadecyl (3,5-di-tert-butyl-4-hydroxy)benzoate, behenyl (3,5-di-tert-butyl-4-hydroxy)benzoate, and 2,4-di-tert-butylphenyl (3,5-di-tert-butyl-4-hydroxy)benzoate.

[0029] Examples of the benzophenone-based ultraviolet absorbers include 2-hydroxybenzophenone, 2,4-dihydroxybenzophenone, 2-hydroxy-4-methoxybenzophenone, 2-hydroxy-4-n-octyloxybenzophenone, 2-hydroxy-4-n-dodecyloxybenzophenone, 2,2'-dihydroxybenzophenone, 2,2',4,4'-tetrahydroxybenzophenone, 2,2'-dihydroxy-4-methoxybenzophenone, 2,2'-dihydroxy-4-n-octyloxybenzophenone, 2,2'-dihydroxy-4-n-dodecyloxybenzophenone, 2,2'-dihydroxy-4,4'-dimethoxybenzophenone, 2,2'-dihydroxy-4,4'-di(n-octyloxy)benzophenone, and 2,2'-dihydroxy-4,4'-di(n-dodecyloxy)benzophenone.

[0030] Examples of triazine-based ultraviolet absorbers include 2-(4,6-diphenyl-1,3,5-triazin-2-yl)-5-hexyloxyphenol, 2-[4,6-di(4-biphenylyl)-1,3,5-triazin-2-yl]-5-(2-ethylhexyloxy)phenol, 2-(2-hydroxy-4-octyloxyphenyl)-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, trioctyl-2,2',2"-((1,3,5-triazine-2,4,6-triyl)triazine), and 2-(2-hydroxy-4-octyloxyphenyl)-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine. Tris(3-hydroxybenzene-4-,1-diyl)tripropionate), 2-(4,6-diphenyl-1,3,5-triazin-2-yl)-5-[2-(2-ethylhexanoyloxy)ethoxy]phenol, 2,4,6-tris(2-hydroxy-4-hexyloxy-3-methylphenyl)-1,3,5-triazine, 1,12-bis[2-[4-(4,6-diphenyl-1,3,5-triazin-2-yl)-3-hydroxyphenoxy]ethyl]dodecanedioate, and the like.

[0031] Examples of the benzotriazole-based ultraviolet absorbers include 2-(2-hydroxy-5-methylphenyl)benzotriazole, 2-(2-hydroxy-5-tert-octylphenyl)benzotriazole, 2-(2-hydroxy-3,5-di-tert-butylphenyl)-5-chlorobenzotriazole, 2-(2-hydroxy-3-tert-butyl-5-methylphenyl)-5-chlorobenzotriazole, 2-(2-hydroxy-3,5-dicumylphenyl)benzotriazole, and 2,2'-methylenediphenyl. (4-tert-octyl-6-benzotriazolylphenol), polyethylene glycol ester of 2-(2-hydroxy-3-tert-butyl-5-carboxyphenyl)benzotriazole, 2-[2-hydroxy-3-(2-acryloyloxyethyl)-5-methylphenyl]benzotriazole, 2-[2-hydroxy-3-(2-methacryloyloxyethyl)-5-tert-butylphenyl]benzotriazole, 2-[2-hydroxy-3-(2-methacryloyloxyethyl)-5 -tert-Octylphenyl]benzotriazole, 2-[2-hydroxy-3-(2-methacryloyloxyethyl)-5-tert-butylphenyl]-5-chlorobenzotriazole, 2-[2-hydroxy-5-(2-methacryloyloxyethyl)phenyl]benzotriazole, 2-[2-hydroxy-3-tert-butyl-5-(2-methacryloyloxyethyl)phenyl]benzotriazole, 2-[2-hydroxy-3-tert-amyl-5-(2-methacryloyloxyethyl)phenyl]benzotriazole, phenyl]benzotriazole, 2-[2-hydroxy-3-tert-butyl-5-(3-methacryloyloxypropyl)phenyl]-5-chlorobenzotriazole, 2-[2-hydroxy-4-(2-methacryloyloxymethyl)phenyl]benzotriazole, 2-[2-hydroxy-4-(3-methacryloyloxy-2-hydroxypropyl)phenyl]benzotriazole, 2-[2-hydroxy-4-(3-methacryloyloxypropyl)phenyl]benzotriazole, and the like.

[0032] Examples of cyanoacrylate ultraviolet absorbers include ethyl-α-cyano-β,β-diphenylacrylate, 2-ethylhexyl-α-cyano-β,β-diphenylacrylate, methyl-2-cyano-3-methyl-3-(p-methoxyphenyl)acrylate, and pentaerythritol-tetrakis(α-cyano-β,β-diphenylacrylate).

[0033] When the resin composition of the present embodiment contains an ultraviolet absorber, the content of the ultraviolet absorber can be, for example, 0.001 to 10 parts by mass relative to 100 parts by mass of the synthetic resin. From the viewpoint of improving the weather resistance of the resin composition and sufficiently suppressing bloom or bleeding of the ultraviolet absorber from the resin composition, the content of the ultraviolet absorber is preferably 0.01 to 5 parts by mass, more preferably 0.05 to 3 parts by mass, and further preferably 0.1 to 2 parts by mass relative to 100 parts by mass of the synthetic resin.

[0034] The resin composition of the present embodiment preferably further contains a nucleating agent, in which case the mechanical properties of the resin composition become excellent.

[0035] Examples of the nucleating agent include compounds that promote the crystallization of synthetic resins. Specific examples of the nucleating agent include sodium 2,2'-methylenebis(4,6-di-tert-butylphenyl)phosphate, lithium 2,2'-methylenebis(4,6-di-tert-butylphenyl)phosphate, dihydroxyaluminum 2,2'-methylenebis(4,6-di-tert-butylphenyl)phosphate, and hydroxyaluminum. Metal salts of aromatic phosphates such as bis[2,2'-methylenebis(4,6-di-tert-butylphenyl)phosphate], metal salts of carboxylic acids such as sodium benzoate, aluminum 4-tert-butylbenzoate, sodium adipate, disodium bicyclo[2.2.1]heptane-2,3-dicarboxylate, and calcium cyclohexane-1,2-dicarboxylate, dibenzylidene sorbitol, bis(methylbenzylidene)sorbitol, bis(3,4-dimethylbenzylidene)sorbitol, and bis(p-ethylbenzyl) sorbitol. and polyol derivatives such as N,N',N"-tris[2-methylcyclohexyl]-1,2,3-propanetricarboxamide, N,N',N"-tricyclohexyl-1,3,5-benzenetricarboxamide, N,N'-dicyclohexylnaphthalenedicarboxamide, and 1,3,5-tri(dimethylisopropylamino)benzene. From the viewpoint of improving the mechanical properties of the resin composition of this embodiment, the nucleating agent preferably contains an aromatic phosphate metal salt, more preferably contains at least one selected from the group consisting of sodium 2,2'-methylenebis(4,6-di-tert-butylphenyl)phosphate and lithium 2,2'-methylenebis(4,6-di-tert-butylphenyl)phosphate, and even more preferably contains sodium 2,2'-methylenebis(4,6-di-tert-butylphenyl)phosphate.

[0036] When the resin composition of the present embodiment contains a nucleating agent, the content of the nucleating agent can be, for example, 0.001 to 10 parts by mass relative to 100 parts by mass of the synthetic resin. From the viewpoint of improving the mechanical properties of the resin composition and sufficiently suppressing the occurrence of blooming and migration of the nucleating agent, the content of the nucleating agent is preferably 0.005 to 5 parts by mass, more preferably 0.01 to 3 parts by mass, even more preferably 0.02 to 1 part by mass, and even more preferably 0.05 to 0.5 parts by mass relative to 100 parts by mass of the synthetic resin.

[0037] The resin composition of the present embodiment may further contain additives such as thioether antioxidants, fatty acid metal salts, lubricants, hydrotalcites, flame retardants, flame retardant assistants, fillers, antistatic agents, antifogging agents, fluorescent brighteners, pigments, dyes, etc. (hereinafter referred to as "other additives") as necessary. The content of the other additives in the resin composition of the present embodiment may be within a range that does not impair the effects of the resin composition of the present embodiment.

[0038] <Method of producing resin composition> The method for producing a resin composition according to the present embodiment includes a blending step of blending a synthetic resin with at least one additive selected from the group consisting of a phenol-based antioxidant, a phosphorus-based antioxidant, a hindered amine-based light stabilizer, and an ultraviolet absorber. Here, the synthetic resin includes a recycled resin.

[0039] According to the method for producing a resin composition of the present embodiment, a resin composition that contains a recycled resin and has excellent thermal stability and / or weather resistance can be produced.

[0040] The method of mixing each component in the compounding step is not particularly limited, and examples thereof include a method of premixing at least one additive selected from the group consisting of a synthetic resin, a phenol-based antioxidant, a phosphorus-based antioxidant, a hindered amine-based light stabilizer, and an ultraviolet absorber, and, if necessary, a nucleating agent and / or the other additives, using various mixers such as a tumbler mixer or an FM mixer, and then melt-kneading using a Banbury mixer, a roll mill, a Brabender, a single-screw kneading extruder, a twin-screw kneading extruder, a kneader, or the like. Here, the temperature of melt-kneading can be, for example, 200°C to 300°C. In addition, the resin composition may be produced by not premixing each component, or by premixing only a portion of the components, feeding the mixture to an extruder using a feeder, and melt-kneading the mixture. Furthermore, a master batch may be produced by premixing a portion of the components and feeding the mixture to an extruder and melt-kneading the mixture, and the resin composition may be produced by mixing the master batch with other components and melt-kneading the mixture.

[0041] <Molded products> The molded article of the present embodiment is obtained by molding the above-mentioned resin composition.

[0042] The molded article of the present embodiment contains recycled resin and has excellent thermal stability and / or weather resistance.

[0043] The method for molding the resin composition is not particularly limited, and examples thereof include extrusion molding, calendar molding, injection molding, roll molding, compression molding, blow molding, and rotational molding.

[0044] Specific examples of the molded article of the present embodiment include optical parts, machine parts, electric and electronic parts, automobile parts, resin glass, and building materials. More specific examples of the molded article include office and office equipment such as printers, personal computers, word processors, keyboards, PDAs (personal digital assistants), telephones, copiers, facsimiles, ECRs (electronic cash registers), calculators, electronic organizers, cards, holders, and stationery, home appliances such as washing machines, refrigerators, vacuum cleaners, microwave ovens, lighting equipment, game consoles, and irons, AV equipment such as TVs, VTRs, video cameras, radio cassette players, tape recorders, minidisks, CD players, speakers, and liquid crystal displays, connectors, relays, capacitors, switches, printed circuit boards, coil bobbins, semiconductor encapsulation materials, LED encapsulation materials, electric wires, cables, transformers, deflection yokes, distribution boards, and watches, and communication equipment, optical disks, CD disks, DVD disks, and the like. Examples of the materials used in automobiles, vehicles, ships, aircraft, buildings, housing and construction materials, civil engineering materials, clothing, curtains, sheets, plywood, synthetic fiber boards, rugs, entrance mats, sheets, buckets, hoses, containers, glasses, bags, cases, goggles, skis, rackets, tents, musical instruments and other daily necessities and sporting goods include:

[0045] Further embodiments of the present invention include, for example: [1] Synthetic resin, at least one additive selected from the group consisting of a phenol-based antioxidant, a phosphorus-based antioxidant, a hindered amine-based light stabilizer, and an ultraviolet absorber; Including, Synthetic resins include recycled resins, Resin composition. [2] The resin composition according to [1], wherein the synthetic resin is a polyolefin-based resin. [3] The resin composition according to [1] or [2], wherein the content of the recycled resin is 5% by mass or more of the total synthetic resins. [4] A molded article obtained by molding the resin composition according to any one of [1] to [3]. [5] Synthetic resin, and at least one additive selected from the group consisting of a phenol-based antioxidant, a phosphorus-based antioxidant, a hindered amine-based light stabilizer, and an ultraviolet absorber, Synthetic resins include recycled resins, A method for producing a resin composition. [6] The method for producing a resin composition according to [5], wherein the synthetic resin is a polyolefin-based resin. [7] The method for producing a resin composition according to [5] or [6], wherein the content of the recycled resin is 5 mass% or more of the total synthetic resins. EXAMPLES

[0046] The present invention will be described in more detail below with reference to examples, but the present invention is not limited to the following examples in any way.

[0047] The synthetic resins, antioxidants, hindered amine light stabilizers, ultraviolet absorbers and nucleating agents used in the present examples are as follows. [Synthetic resin] Recycled resin-1: PCR polypropylene resin, manufactured by Interzero, product name "recythen PP" Recycled resin-2: PIR polypropylene resin, manufactured by Takaroku Shoji Co., Ltd., crushed automobile bumpers Recycled resin-3: PCR polypropylene resin, manufactured by Takaroku Shoji Co., Ltd., product name "PP-MER-BK" Recycled resin-4: PCR polypropylene resin, manufactured by Ishizuka Chemical Industry Co., Ltd., product name "PP R black" Recycled resin-5: PCR high-density polyethylene resin, manufactured by Ishizuka Chemical Industry Co., Ltd., product name "PE Hard R Black AP" Virgin resin-1: Virgin polypropylene resin, manufactured by Japan Polypropylene Corporation, product name "Novatec PP MA3" [Antioxidants] (Phenol-based antioxidant) Antioxidant-1: ADEKA Corporation, product name "ADEKA STAB AO-60" Antioxidant-2: ADEKA Corporation, product name "ADEKA STAB AO-50" Antioxidant-3: ADEKA Corporation, product name "ADEKA STAB AO-20" Antioxidant-4: ADEKA Corporation, product name "ADEKA STAB AO-30" Antioxidant-5: ADEKA Corporation, product name "ADEKA STAB AO-40" Antioxidant-6: ADEKA Corporation, product name "ADEKA STAB AO-80" Antioxidant-7: ADEKA Corporation, product name "ADEKA STAB AO-330" (Phosphorus-based antioxidant) Antioxidant-8: ADEKA Corporation, product name "ADEKA STAB 2112" Antioxidant-9: ADEKA Corporation, product name "ADEKA STAB PEP-36" Antioxidant-10: ADEKA Corporation, product name "ADEKA STAB PEP-8" Antioxidant-11: ADEKA Corporation, product name "ADEKA STAB HP-10" Antioxidant-12: ADEKA Corporation, product name "ADEKA STAB 1178" Antioxidant-13: ADEKA Corporation, product name "ADEKA STAB 1500" Antioxidant-14: ADEKA Corporation, product name "ADEKA STAB C" Antioxidant-15: ADEKA Corporation, product name "ADEKA STAB 135A" Antioxidant-16: ADEKA Corporation, product name "ADEKA STAB 3010" Antioxidant-17: ADEKA Corporation, product name "ADEKA STAB TPP" [Hindered amine light stabilizers] HALS-1: ADEKA, product name "ADEKA STAB LA-77Y" HALS-2: ADEKA, product name "ADEKA STAB LA-72" HALS-3: ADEKA, product name "ADEKA STAB LA-57" HALS-4: ADEKA, product name "ADEKA STAB LA-52" HALS-5: A mixture of 2,2,6,6-tetramethyl-4-piperidyl stearate and 2,2,6,6-tetramethyl-4-piperidyl palmitate HALS-6: ADEKA, product name "ADEKA STAB LA-63P" HALS-7: ADEKA, product name "ADEKA STAB LA-81" HALS-8: Mixture of 1,2,2,6,6-pentamethyl-4-piperidyl stearate and 1,2,2,6,6-pentamethyl-4-piperidyl palmitate HALS-9: ADEKA, product name "ADEKA STAB LA-40MP" HALS-10: ADEKA, product name "ADEKA STAB LA-402AF" HALS-11: ADEKA, product name "ADEKA STAB LA-502XP" HALS-12: ADEKA, product name "ADEKA STAB LA-704AF" [Ultraviolet absorber] UV absorber-1: Hexadecyl (3,5-di-tert-butyl-4-hydroxy)benzoate UV absorber-2: 2,4-di-tert-butylphenyl (3,5-di-tert-butyl-4-hydroxy)benzoate UV absorber-3: ADEKA Corporation, product name "ADEKA STAB LA-36" UV absorber-4: ADEKA Corporation, product name "ADEKA STAB LA-31" UV absorber-5: ADEKA Corporation, product name "ADEKA STAB LA-24" UV absorber-6: ADEKA Corporation, product name "ADEKA STAB LA-29" UV absorber-7: ADEKA Corporation, product name "ADEKA STAB LA-32" UV absorber-8: ADEKA Corporation, product name "ADEKA STAB LA-46" UV absorber-9: ADEKA Corporation, product name "ADEKA STAB LA-F70" UV absorber-10: ADEKA Corporation, product name "ADEKA STAB 1413" [Nucleating agent] Nucleating agent-1: ADEKA Corporation, product name "ADEKA STAB NA-11" Nucleating agent-2: ADEKA Corporation, product name "ADEKA STAB NA-21" Nucleating agent-3: ADEKA Corporation, product name "ADEKA STAB NA-27" Nucleating agent-4: ADEKA Corporation, product name "ADEKA STAB NA-71"

[0048] (Examples 1 to 2750) The synthetic resins, antioxidants, hindered amine-based light stabilizers, and ultraviolet absorbers shown in Tables 1 to 275 were mixed in the amounts shown in Tables 1 to 275, and 0.05 parts by mass of fatty acid metal salt (calcium stearate) was mixed for 1 minute at a rotation speed of 1000 rpm using an FM mixer (FM200 manufactured by Mitsui Mining Co., Ltd.). The resulting mixture was melt-kneaded using a twin-screw extruder (TEX-28V manufactured by Japan Steel Works, Ltd.) under processing conditions of a resin temperature of 230°C and a screw speed of 150 rpm, and then granulated to obtain a pellet-shaped resin composition. In Tables 1 to 275, the unit of the amount is parts by mass.

[0049] <Characteristics evaluation> (thermal stability) First, the following operations (A) to (E) were carried out.

[0050] Procedure (A): The resin compositions of Examples 1 to 1750 are dried at 80°C for 8 hours, and the dried resin compositions (hereinafter, these resin compositions are referred to as "PASS0") are fed into a twin-screw extruder (TEX28V manufactured by The Japan Steel Works, Ltd.), melt-kneaded under conditions of a melt temperature of 230°C and a screw speed of 150 rpm, and granulated to obtain resin pellets, which are then dried at 60°C for 8 hours. Hereinafter, the resin composition thus obtained is referred to as "PASS1".

[0051] Procedure (B): PASS0 and PASS1 are mixed in a mass ratio of 1:1 and mixed for 30 minutes using a rocking mixer (Aichi Electric RM-150), and the resulting mixture is fed into a twin-screw extruder (Japan Steel Works TEX28V), melt-kneaded at a melt temperature of 230°C and a screw speed of 150 rpm, granulated to obtain resin pellets, and then dried at 60°C for 8 hours. Hereinafter, the resin composition thus obtained is referred to as "PASS2".

[0052] Procedure (C): PASS0 and PASS2 are mixed in a mass ratio of 1:1 and mixed for 30 minutes using a rocking mixer (Aichi Electric RM-150), and the resulting mixture is fed into a twin-screw extruder (Japan Steel Works TEX28V), melt-kneaded at a melt temperature of 230°C and a screw speed of 150 rpm, granulated to obtain resin pellets, and then dried at 60°C for 8 hours. Hereinafter, the resin composition thus obtained is referred to as "PASS3".

[0053] Procedure (D): PASS0 and PASS3 are mixed in a mass ratio of 1:1 and mixed for 30 minutes using a rocking mixer (Aichi Electric RM-150), and the resulting mixture is fed into a twin-screw extruder (Japan Steel Works TEX28V), melt-kneaded at a melt temperature of 230°C and a screw speed of 150 rpm, granulated to obtain resin pellets, and then dried at 60°C for 8 hours. Hereinafter, the resin composition thus obtained is referred to as "PASS4".

[0054] Operation (E): PASS0 and PASS4 are mixed in a mass ratio of 1:1 and mixed for 30 minutes using a rocking mixer (Aichi Electric RM-150), and the resulting mixture is fed into a twin-screw extruder (Japan Steel Works TEX28V), melt-kneaded at a melt temperature of 230°C and a screw speed of 150 rpm, granulated to obtain resin pellets, and then dried at 60°C for 8 hours. Hereinafter, the resin composition thus obtained is referred to as "PASS5".

[0055] Next, the MFR of the above PASS5 was measured in accordance with ISO 1133 at a resin temperature of 230°C. Here, as a control sample, the operations (A) to (E) were carried out on a resin composition prepared under the same conditions as in each of the Examples except that no antioxidant was added, and the MFR of PASS5 was measured under the same conditions. As a result, it was revealed that the resin compositions of Examples 1 to 1750 had smaller MFR values ​​of PASS5 than the respective control samples, and had excellent thermal stability. Therefore, in Tables 1 to 175, the column for thermal stability is also marked with "◯".

[0056] (weather resistance) The resin compositions of Examples 1751 to 2750 were dried at 80°C for 8 hours, and then injection molded using an injection molding machine (EC-100-2A manufactured by Toshiba Machine Co., Ltd.) under conditions of a resin temperature of 230°C and a mold temperature of 40°C to prepare plate-shaped test pieces with a thickness of 2 mm. The test pieces were introduced into a weather resistance tester (Ametek Co., Ltd. xenon weather meter, Atlas Ci4000), and weather resistance tests were performed under conditions specified in ISO4892-2. Here, the glossiness (gloss value) of each test piece before and during the weather resistance test was measured, and the time (h) from the start of the test until the glossiness of the test piece became 80% or less of the glossiness before the weather resistance test was measured as the "80% gloss retention time". Here, the glossiness of the test piece was measured using a gloss meter (VG-2000 manufactured by Nippon Denshoku Kogyo Co., Ltd.) at a measurement angle of 60°. Here, as a control sample, a weather resistance test was carried out under the same conditions as for each of the examples, except that the hindered amine light stabilizer and the ultraviolet absorber were not blended, and the 80% gloss retention time was measured. As a result, it was revealed that the resin compositions of Examples 1751 to 2750 had a longer 80% gloss retention time than the respective control samples, and had excellent weather resistance. Therefore, in Tables 176 to 275, the weather resistance column is also marked with "○".

[0057] [Table 1]

[0058]

Table 2

[0059]

Table 3

[0060]

Table 4

[0061]

Table 5

[0062]

Table 6

[0063]

Table 7

[0064]

Table 8

[0065]

Table 9

[0066]

Table 10

[0067]

Table 11

[0068]

Table 12

[0069]

Table 13

[0070]

Table 14

[0071]

Table 15

[0072]

Table 16

[0073]

Table 17

[0074]

Table 18

[0075]

Table 19

[0076]

Table 20

[0077]

Table 21

[0078]

Table 22

[0079]

Table 23

[0080]

Table 24

[0081]

Table 25

[0082]

Table 26

[0083]

Table 27

[0084]

Table 28

[0085]

Table 29

[0086]

Table 30

[0087]

Table 31

[0088]

Table 32

[0089]

Table 33

[0090]

Table 34

[0091]

Table 35

[0092]

Table 36

[0093]

Table 37

[0094]

Table 38

[0095]

Table 39

[0096]

Table 40

[0097]

Table 41

[0098]

Table 42

[0099]

Table 43

[0100]

Table 44

[0101]

Table 45

[0102]

Table 46

[0103]

Table 47

[0104]

Table 48

[0105]

Table 49

[0106]

Table 50

[0107]

Table 51

[0108]

Table 52

[0109]

Table 53

[0110]

Table 54

[0111]

Table 55

[0112]

Table 56

[0113]

Table 57

[0114]

Table 58

[0115]

Table 59

[0116]

Table 60

[0117]

Table 61

[0118]

Table 62

[0119]

Table 63

[0120]

Table 64

[0121]

Table 65

[0122]

Table 66

[0123]

Table 67

[0124]

Table 68

[0125]

Table 69

[0126]

Table 70

[0127]

Table 71

[0128]

Table 72

[0129]

Table 73

[0130]

Table 74

[0131]

Table 75

[0132]

Table 76

[0133]

Table 77

[0134]

Table 78

[0135]

Table 79

[0136]

Table 80

[0137]

Table 81

[0138]

Table 82

[0139]

Table 83

[0140]

Table 84

[0141]

Table 85

[0142]

Table 86

[0143]

Table 87

[0144]

Table 88

[0145]

Table 89

[0146]

Table 90

[0147]

Table 91

[0148]

Table 92

[0149]

Table 93

[0150]

Table 94

[0151]

Table 95

[0152]

Table 96

[0153]

Table 97

[0154]

Table 98

[0155]

Table 99

[0156]

Table 100

[0157]

Table 101

[0158]

Table 102

[0159]

Table 103

[0160]

Table 104

[0161]

Table 105

[0162]

Table 106

[0163]

Table 107

[0164]

Table 108

[0165]

Table 109

[0166]

Table 110

[0167]

Table 111

[0168]

Table 112

[0169]

Table 113

[0170]

Table 114

[0171]

Table 115

[0172]

Table 116

[0173]

Table 117

[0174]

Table 118

[0175]

Table 119

[0176]

Table 120

[0177]

Table 121

[0178]

Table 122

[0179]

Table 123

[0180]

Table 124

[0181]

Table 125

[0182]

Table 126

[0183]

Table 127

[0184]

Table 128

[0185]

Table 129

[0186]

Table 130

[0187]

Table 131

[0188]

Table 132

[0189]

Table 133

[0190]

Table 134

[0191]

Table 135

[0192]

Table 136

[0193]

Table 137

[0194]

Table 138

[0195]

Table 139

[0196]

Table 140

[0197]

Table 141

[0198]

Table 142

[0199]

Table 143

[0200]

Table 144

[0201]

Table 145

[0202]

Table 146

[0203]

Table 147

[0204]

Table 148

[0205]

Table 149

[0206]

Table 150

[0207]

Table 151

[0208]

Table 152

[0209]

Table 153

[0210]

Table 154

[0211]

Table 155

[0212]

Table 156

[0213]

Table 157

[0214]

Table 158

[0215]

Table 159

[0216]

Table 160

[0217]

Table 161

[0218]

Table 162

[0219]

Table 163

[0220]

Table 164

[0221]

Table 165

[0222]

Table 166

[0223]

Table 167

[0224]

Table 168

[0225]

Table 169

[0226]

Table 170

[0227]

Table 171

[0228]

Table 172

[0229]

Table 173

[0230]

Table 174

[0231]

Table 175

[0232]

Table 176

[0233]

Table 177

[0234]

Table 178

[0235]

Table 179

[0236]

Table 180

[0237]

Table 181

[0238]

Table 182

[0239]

Table 183

[0240]

Table 184

[0241]

Table 185

[0242]

Table 186

[0243]

Table 187

[0244]

Table 188

[0245]

Table 189

[0246]

Table 190

[0247]

Table 191

[0248]

Table 192

[0249]

Table 193

[0250]

Table 194

[0251]

Table 195

[0252]

Table 196

[0253]

Table 197

[0254]

Table 198

[0255]

Table 199

[0256]

Table 200

[0257]

Table 201

[0258]

Table 202

[0259]

Table 203

[0260]

Table 204

[0261]

Table 205

[0262]

Table 206

[0263]

Table 207

[0264]

Table 208

[0265]

Table 209

[0266]

Table 210

[0267]

Table 211

[0268]

Table 212

[0269]

Table 213

[0270]

Table 214

[0271]

Table 215

[0272]

Table 216

[0273]

Table 217

[0274]

Table 218

[0275]

Table 219

[0276]

Table 220

[0277]

Table 221

[0278]

Table 222

[0279]

Table 223

[0280]

Table 224

[0281]

Table 225

[0282]

Table 226

[0283]

Table 227

[0284]

Table 228

[0285]

Table 229

[0286]

Table 230

[0287]

Table 231

[0288]

Table 232

[0289]

Table 233

[0290]

Table 234

[0291]

Table 235

[0292]

Table 236

[0293]

Table 237

[0294]

Table 238

[0295]

Table 239

[0296]

Table 240

[0297]

Table 241

[0298]

Table 242

[0299]

Table 243

[0300]

Table 244

[0301]

Table 245

[0302]

Table 246

[0303]

Table 247

[0304]

Table 248

[0305]

Table 249

[0306]

Table 250

[0307]

Table 251

[0308]

Table 252

[0309]

Table 253

[0310]

Table 254

[0311]

Table 255

[0312]

Table 256

[0313]

Table 257

[0314]

Table 258

[0315]

Table 259

[0316]

Table 260

[0317]

Table 261

[0318]

Table 262

[0319]

Table 263

[0320]

Table 264

[0321]

Table 265

[0322]

Table 266

[0323]

Table 267

[0324]

Table 268

[0325]

Table 269

[0326]

Table 270

[0327] [Table 271]

[0328] [Table 272]

[0329] [Table 273]

[0330] [Table 274]

[0331] [Table 275]

[0332] From the above, it was confirmed that the resin composition of the present invention contains a recycled resin and has excellent thermal stability and / or weather resistance.

Claims

1. Synthetic resin, at least one additive selected from the group consisting of a phenol-based antioxidant, a phosphorus-based antioxidant, a hindered amine-based light stabilizer, and an ultraviolet absorber; Including, The synthetic resin includes recycled resin. Resin composition.

2. The resin composition according to claim 1 , wherein the synthetic resin is a polyolefin resin.

3. The resin composition according to claim 1 , wherein the content of the recycled resin is 5% by mass or more of the total synthetic resin.

4. A molded article obtained by molding the resin composition according to any one of claims 1 to 3.

5. Synthetic resin, and at least one additive selected from the group consisting of a phenol-based antioxidant, a phosphorus-based antioxidant, a hindered amine-based light stabilizer, and an ultraviolet absorber, The synthetic resin includes recycled resin. A method for producing a resin composition.

6. The method for producing a resin composition according to claim 5 , wherein the synthetic resin is a polyolefin-based resin.

7. The method for producing a resin composition according to claim 5 , wherein the content of the recycled resin is 5% by mass or more of the total synthetic resins.

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