Classifications

• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
  • C08K5/00—Use of organic ingredients
  • C08K5/49—Phosphorus-containing compounds
  • C08K5/51—Phosphorus bound to oxygen
  • C08K5/52—Phosphorus bound to oxygen only
  • C08K5/521—Esters of phosphoric acids, e.g. of H3PO4
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
  • C08L1/00—Compositions of cellulose, modified cellulose or cellulose derivatives
  • C08L1/08—Cellulose derivatives
  • C08L1/10—Esters of organic acids, i.e. acylates
  • C08L1/12—Cellulose acetate
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
  • C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
  • C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds

Definitions

• the present invention relates to a cellulose acetate resin composition made from non-edible cellulose, and to a molded article made using the same.
• Bioplastics made from plants and other renewable organic resources, can contribute to combating oil depletion and global warming, and are therefore beginning to be used in durable products such as electronic devices and automobiles, in addition to general products such as packaging, containers, and textiles.
• concerns about future food shortages have led to a demand for the development of new bioplastics made from non-edible plant resources.
• Cellulose acetate is a biomass material obtained by esterifying the hydroxyl groups of cellulose derived from non-edible plant resources such as wood fiber and cotton with acetic acid.
• thermoplasticity is imparted by adding a plasticizer.
• plasticizers Patent Document 1 uses polyethylene glycol and trimethylolpropane tribenzoate, Patent Document 2 uses polycaprolactone, Patent Document 3 uses polyethylene adipate diol, and Patent Document 4 uses a citrate triester of an alkoxy ether alcohol.
• the object of the present invention is to provide a cellulose-based resin composition that suppresses the bleed out of plasticizer and can form a molded article with good physical properties.
• the resin composition of the present invention comprises: Component A: cellulose acetate, Component B: a plasticizer which is a phosphoric acid ester; Component C: polyester, Including, The content of component B is 15 to 35% by mass relative to 100% by mass of the total content of components A, B and C, The cellulose-based resin composition has a content of Component C of 0.5 to 15% by mass relative to the total content of Components A, B and C (100% by mass).
• the present invention provides a cellulose-based resin composition that can form a molded article that is highly transparent and suppresses the exudation of plasticizer.
• the resin composition of the present invention comprises Component A: cellulose acetate, Component B: a plasticizer which is a phosphoric acid ester; Component C: polyester, Including, The content of component B is 15 to 35% by mass relative to 100% by mass of the total content of components A, B and C, The cellulose-based resin composition has a content of Component C of 0.5 to 15% by mass relative to the total content of Components A, B and C (100% by mass).
• the resin composition of the present invention contains cellulose acetate as component A.
• cellulose acetate one in which acetyl groups have been introduced into at least a portion of the hydroxyl groups of cellulose as a raw material can be used.
• Cellulose is a linear polymer formed by the polymerization of ⁇ -D-glucose molecules ( ⁇ -D-glucopyranose) via ⁇ (1 ⁇ 4) glycosidic bonds, as shown in the following formula (1) (n in the formula is a natural number).
• Cellulose is the main component of plants, and can be obtained by separating and processing other components such as lignin from plants.
• cotton e.g. cotton linters
• pulp e.g. wood pulp
• the shape, size and form of cellulose or its derivatives used as raw materials are preferably in powder form with an appropriate particle size and shape in terms of reactivity, solid-liquid separation and ease of handling.
• fibrous or powdered material with a diameter of 1 to 100 ⁇ m (preferably 10 to 50 ⁇ m) and a length of 10 ⁇ m to 100 mm (preferably 100 ⁇ m to 10 mm) can be used.
• the degree of polymerization of cellulose is preferably in the range of 50 to 5,000, more preferably 100 to 3,000, and even more preferably 100 to 1,000. If the degree of polymerization is too low, the strength, heat resistance, etc. of the produced resin may be insufficient. Conversely, if the degree of polymerization is too high, the melt viscosity of the produced resin may become too high, causing problems in molding.
• Each glucose unit that constitutes cellulose has three hydroxyl groups.
• the cellulose acetate of the present invention is cellulose to which acetyl groups have been introduced, utilizing these hydroxyl groups. By introducing acetyl groups into cellulose, the intermolecular forces (intermolecular bonds) of cellulose can be reduced, improving the plasticity of the resin composition.
• the acetyl group can be introduced by reacting a hydroxy group in cellulose with an acylating agent.
• the acetyl group corresponds to an organic group that is introduced in place of the hydrogen atom of the hydroxy group of cellulose.
• the acylating agent is a compound that has at least one functional group that can react with the hydroxy group in cellulose, and examples of such an acylating agent include compounds that have a carboxyl group, a carboxylic acid halide group, or a carboxylic acid anhydride group. Specific examples include aliphatic monocarboxylic acids, their acid halides, and their acid anhydrides.
• the average number of acetyl groups introduced per glucose unit of cellulose (DS AC ) (acetyl group introduction ratio), i.e., the average number of hydroxy groups substituted with acetyl groups per glucose unit (hydroxy group substitution degree), can be set in the range of 0.1 to 3.0.
• DS AC is preferably 2.0 or more, more preferably 2.2 or more, and even more preferably 2.4 or more.
• DS AC is preferably 2.9 or less, more preferably 2.8 or less.
• the average number of remaining hydroxyl groups per glucose unit of cellulose acetate can be set in the range of 0 to 2.9. Hydroxy groups may remain from the viewpoint of the maximum strength and heat resistance of the resin composition, and for example, the hydroxyl group residual degree may be 0.01 or more, and even 0.1 or more.
• the hydroxyl group residual degree of the final product cellulose acetate is preferably 1.0 or less, more preferably 0.8 or less, and particularly preferably 0.6 or less.
• the hydroxyl group residual degree is preferably 0.6 or less, more preferably 0.5 or less, more preferably 0.4 or less, and particularly preferably 0.2 or less.
• the molecular weight of cellulose acetate is preferably in the range of 10,000 to 400,000, more preferably in the range of 50,000 to 350,000, even more preferably in the range of 100,000 to 300,000, and even more preferably in the range of 150,000 to 250,000. If the molecular weight is too large, the fluidity of the resin composition will decrease, making processing difficult, and it may also be difficult to mix uniformly. Conversely, if the molecular weight is too small, the physical properties of the resin composition, such as impact resistance, may decrease. This weight average molecular weight can be determined by gel permeation chromatography (GPC) (commercially available standard polystyrene can be used as the standard sample).
• GPC gel permeation chromatography
• the content of component A is not particularly limited, but is preferably 50% by mass or more, more preferably 60% by mass or more, and particularly preferably 65% by mass or more, relative to 100% by mass of the total content of components A, B, and C. Also, the content of component A is preferably 85% by mass or less, more preferably 80% by mass or less, and particularly preferably 78% by mass or less, relative to 100% by mass of the total content of components A, B, and C.
• the resin composition of the present invention contains, as component B, a plasticizer which is a phosphoric acid ester.
• Component B may be used alone or in combination of two or more.
• Component B functions as a flame retardant and a plasticizer, and can impart flame retardancy and processing stability to the resin composition.
• Examples of component B include, but are not limited to, one or more phosphoric acid esters selected from the group consisting of triphenyl phosphate, triethyl phosphate, tributyl phosphate, tricresyl phosphate, cresyl di-2,6-xylenyl phosphate, and compounds represented by the following formula (2).
• the plasticizer is preferably triphenyl phosphate.
• Triphenyl phosphate is less likely to volatilize and has high compatibility with component A. Furthermore, the use of triphenyl phosphate makes it possible to form a resin composition with high mechanical strength.
• the content of component B is preferably 15% by mass or more, more preferably 19% by mass or more, and particularly preferably 20% by mass or more, based on 100% by mass of the total content of components A, B, and C. Also, the content of component B is preferably 35% by mass or less, more preferably 30% by mass or less, and particularly preferably 25% by mass or less, based on 100% by mass of the total content of components A, B, and C.
• the content of component B is preferably 15% by mass or more, more preferably 19% by mass or more, and particularly preferably 20% by mass or more, based on 100% by mass of the total content of components A, B, and C.
• the content of component B is preferably 35% by mass or less, more preferably 30% by mass or less, and particularly preferably 25% by mass or less, based on 100% by mass of the total content of components A, B, and C.
• the resin composition of the present invention may contain other plasticizers within the scope of the present invention, so long as the effects of the present invention are not impaired.
• plasticizers include phthalate esters such as dibutyl phthalate, diaryl phthalate, diethyl phthalate, dimethyl phthalate, di-2-methoxyethyl phthalate, ethylphthalyl/ethyl glycolate, and methylphthalyl/ethyl glycolate; tartaric acid esters such as dibutyl tartrate; adipic acid esters such as dioctyl adipate and diisononyl adipate; polyhydric alcohol esters such as triacetin, diacetyl glycerin, tripropionitrile glycerin, and glycerin monostearate; dibutyl adipate, dioctyl adipate, dibutyl adipate, dioctyl adipate, dibuty
• plasticizer examples include aliphatic dicarboxylic acid dialkyl esters such as ethyl citrate and dioctyl sebacate; citric acid esters such as triethyl citrate, acetyl triethyl citrate, and acetyl tributyl citrate; epoxidized vegetable oils such as epoxidized soybean oil and epoxidized linseed oil; castor oil and its derivatives; benzoic acid esters such as ethyl O-benzoylbenzoate; aliphatic dicarboxylic acid esters such as sebacic acid esters and azelaic acid esters; unsaturated dicarboxylic acid esters such as maleic acid esters; and others such as N-ethyltoluenesulfonamide, O-cresyl p-toluenesulfonate, and tripropionin.
• the amount of the other plasticizer is, for example, 20% by mass
• polyester refers to a polycondensate synthesized by polymerizing a carboxylic acid and/or an alcohol through an ester bond.
• polyester include a polycondensate synthesized by dehydration condensation of a dicarboxylic acid and a diol, and a polycondensate synthesized by dehydration condensation of a hydroxycarboxylic acid.
• dicarboxylic acids examples include oxalic acid, malonic acid, succinic acid, glutaric acid, adipic acid, pimelic acid, suberic acid, azelaic acid, sebacic acid, phthalic acid, isophthalic acid, and terephthalic acid, and adipic acid or succinic acid is preferable, and succinic acid is particularly preferable.
• diols examples include 1,2-butanediol, 1,3-butanediol, 1,4-butanediol, 2,3-butanediol, 1,5-pentanediol, 1,6-hexanediol, heptaethylene glycol, and 1,2-benzenedimethanol, with 1,4-butanediol being preferred.
• hydroxycarboxylic acids include lactic acid, tartaric acid, citric acid, salicylic acid, gallic acid, and 6-hydroxyhexanoic acid, with lactic acid being preferred.
• polyesters examples include polybutylene succinate, polybutylene succinate adipate, polylactic acid, and mixtures thereof, and by using these specific polyesters, it is possible to obtain a resin composition with high physical properties with suppressed exudation of the plasticizer. Furthermore, as the polyester, polybutylene succinate is particularly preferred.
• the content of component C is preferably 0.5% by mass or more, more preferably 1.0% by mass or more, and particularly preferably 2.5% by mass or more, relative to 100% by mass of the total content of components A, B, and C. Also, the content is preferably less than 15% by mass, more preferably 10% by mass or less, and particularly preferably 5% by mass or less, relative to 100% by mass of the total content of components A, B, and C.
• the exudation (bleed-out) of component B can be suppressed. If the content of component C is too high, processing stability may be impaired, and if the content of component C is too low, the effect of suppressing the exudation of component B may be insufficient.
• Increasing the content of component B can improve mechanical strength (impact resistance), but if the content of component B is high, bleeding may occur in high temperature and high humidity environments. Therefore, by adding component C, the content of component B can be increased while suppressing bleeding. Therefore, by containing components A, B, and C, the resin composition of the present invention achieves both mechanical strength and bleeding suppression.
• the cellulose-based resin composition according to this embodiment may contain other components to the extent that the desired appearance and properties are not impaired when the composition is molded.
• the total amount of components (A), (B), and (C) can be set in the range of 80 to 100% by mass of the entire cellulose-based resin composition, but is preferably 90% by mass or more, more preferably 95% by mass or more, and even more preferably 99% by mass or more.
• the resin composition of the present invention may contain a metal hydroxide such as aluminum hydroxide, magnesium hydroxide, or calcium hydroxide, if necessary, while taking into consideration the maintenance of transparency.
• the resin composition can improve flame retardancy by containing a metal hydroxide.
• aluminum hydroxide is particularly preferred because it has a high heat absorbing effect and excellent flame retardancy.
• the surface of the metal hydroxide may be surface-treated with various organic substances including epoxy resins and phenolic resins.
• One type of metal hydroxide may be used alone, or two or more types may be used in combination. From the viewpoint of transparency, the amount of the metal hydroxide is preferably 0.5 mass% or less, more preferably 0.3 mass% or less, and particularly preferably 0.1 mass% or less, based on the entire composition.
• Inorganic or organic granular or fibrous fillers can be added to the resin composition of the present invention as necessary while taking into consideration the maintenance of transparency. By adding a filler, strength and rigidity can be further improved.
• fillers include mineral particles (talc, mica, calcined silica earth, kaolin, sericite, bentonite, smectite, clay, silica, quartz powder, glass beads, glass powder, glass flakes, milled fiber, wollastonite (or wollastonite), etc.), boron-containing compounds (boron nitride, boron carbide, titanium boride, etc.), metal carbonates (magnesium carbonate, heavy calcium carbonate, light calcium carbonate, etc.), metal silicates (calcium silicate, aluminum silicate, magnesium silicate, magnesium aluminosilicate, etc.), metal oxides (magnesium oxide, etc.), metal sulfates (calcium sulfate, barium sulfate, etc.),
• fibrous fillers examples include organic fibers (natural fibers, paper, etc.), inorganic fibers (glass fibers, asbestos fibers, carbon fibers, silica fibers, silica-alumina fibers, wollastonite, zirconia fibers, potassium titanate fibers, etc.), and metal fibers. These fillers can be used alone or in combination of two or more.
• the resin composition may contain glass fibers.
• the strength of the molded body is improved by including glass fibers in the resin composition.
• the glass fibers are not particularly limited, but the fiber length of the glass fibers before melt-kneading is preferably 0.5 mm or more, and preferably 30 mm or less, and more preferably 10 mm or less.
• the cross-sectional shape of the glass fibers is not particularly limited, and examples thereof include circular, elliptical, oval, and non-circular.
• the fiber diameter of the glass fibers may be, for example, 3 to 20 ⁇ m when the cross-sectional area is converted into a perfect circle.
• the content of the glass fibers relative to the total mass of the resin composition may be 0 mass%, but is preferably 0.5 mass% or more, more preferably 1 mass% or more, and even more preferably 3 mass% or more, and is also preferably 20 mass% or less, more preferably 10 mass% or less, and even more preferably 8 mass% or less.
• the resin composition may contain a hydrolysis inhibitor.
• a hydrolysis inhibitor is a compound that can react with carboxylic acid generated by hydrolysis of cellulose acetate or polyester.
• Hydrolysis inhibitors include compounds having functional groups such as carbodiimide groups, epoxy groups, and oxazoline groups, and carbodiimide compounds having carbodiimide groups are preferred.
• the carbodiimide compound may be a compound having two or more carbodiimide groups in the molecule, i.e., a polyvalent carbodiimide compound.
• the polyvalent carbodiimide compound preferably has 30 or less carbodiimide groups in the carbodiimide compound.
• a high molecular weight polycarbodiimide produced by subjecting a diisocyanate to a decarboxylation condensation reaction in the presence of a carbodiimide catalyst may be used as the carbodiimide compound.
• carbodiimide compounds include monocarbodiimides such as aliphatic monocarbodiimides, alicyclic monocarbodiimides, and aromatic monocarbodiimides, and polycarbodiimides such as aliphatic polycarbodiimides, alicyclic polycarbodiimides, and aromatic polycarbodiimides.
• aliphatic monocarbodiimides examples include diisopropylcarbodiimide, dimethylcarbodiimide, diisobutylcarbodiimide, and dioctylcarbodiimide.
• An example of an alicyclic monocarbodiimide is dicyclohexylcarbodiimide.
• Aromatic monocarbodiimides include N,N'-diphenylcarbodiimide and N,N'-di-2,6-diisopropylphenylcarbodiimide.
• Polycarbodiimides include those obtained by decarboxylation condensation reaction of the following diisocyanates:
• diisocyanates include 1,4-phenylene diisocyanate, 1,3,5-triisopropyl-phenylene-2,4-diisocyanate, 4,4'-diphenylmethane diisocyanate, 3,3'-dimethoxy-4,4'-diphenylmethane diisocyanate, 3,3'-dimethyl-4,4'-diphenylmethane diisocyanate, 4,4'-diphenylether diisocyanate, 3,3'-dimethyl-4,4'-diphenylether diisocyanate, 2,4-tolylene diisocyanate, 2,6-tolylene diisocyanate, 1-methoxyphenyl-2,4-diisocyanate, isophorone diisocyanate, 4,4'-dicyclohexylmethane diisocyanate, and tetra
• the number average molecular weight of the polycarbodiimide is not particularly limited, but it is preferable to use one having a molecular weight of, for example, preferably 200 or more, more preferably 300 or more, and preferably 20,000 or less.
• the carbodiimide compound may be either one that has an isocyanate group in the molecule or one that does not have an isocyanate group in the molecule, and can be selected appropriately.
• both ends of the molecule or any part in the molecule may have a functional group such as an isocyanate group, or the molecular chain may be branched, giving a molecular structure different from other parts.
• the carbodiimide compound may have a heterocycle or other functional group in the molecule.
• carbodiimide compounds such as the Carbodilite (registered trademark) series manufactured by Nisshinbo Chemical Co., Ltd. (e.g., Carbodilite HMV-15CA, HMV-5CA-LC, LA-1); STABAXOL I POWDER, STABAXOL P, STABAXOL P 100 manufactured by LANXESS; and TCC-NP manufactured by Teijin Limited.
• Carbodilite registered trademark
• STABAXOL I POWDER STABAXOL P
• STABAXOL P 100 manufactured by LANXESS
• TCC-NP manufactured by Teijin Limited.
• Examples of compounds containing epoxy groups include glycidyl ester compounds and glycidyl ether compounds.
• Examples of compounds containing oxazoline groups include bisoxazoline compounds.
• the hydrolysis inhibitors may be used alone or in combination of two or more.
• the content of the hydrolysis inhibitor is not particularly limited and may be 0% by mass relative to the total content of components A, B, and C, which is 100% by mass. However, for example, it is preferably 0.1% by mass or more, more preferably 0.5% by mass or more, and is preferably 5% by mass or less, more preferably 3% by mass or less.
• the resin composition may contain, as other components, additives that are generally used in ordinary molding resin materials, particularly ordinary cellulose-based resins, to the extent that the effects of the present invention are not impaired.
• additives include phenolic or phosphorus-based antioxidants, light stabilizers, UV absorbers, antistatic agents, antibacterial and antifungal agents, and fillers.
• the method for producing the resin composition of the present invention is not particularly limited, and for example, the resin composition can be obtained by melt-mixing component A, component B, and component C, and other components as necessary, in a normal mixer.
• a compounding device such as a tumbler mixer, a ribbon blender, a single-screw or multi-screw mixer extruder, a kneading kneader, or a kneading roll can be used.
• the mixture can be granulated into an appropriate shape as necessary, for example, pelletized using a pelletizer.
• the molded article formed using the resin composition according to the present invention can be molded into a desired shape by a normal molding method.
• the thickness of the molded article is not particularly limited, but from the viewpoint of strength, it is preferably 0.5 mm or more, more preferably 0.8 mm or more. Furthermore, from the viewpoint of flame retardancy, the thickness of the molded article is preferably 1.0 mm or more, more preferably 1.6 mm or more, more preferably 2.0 mm or more, and even more preferably 3.2 mm or more.
• the upper limit of the thickness of the molded article is not particularly limited, and can be appropriately set according to the required shape, strength, etc., but can be, for example, 10 mm or less, and even 5 mm or less.
• the haze value of a molded article having a thickness of 300 ⁇ m is preferably 55% or less, more preferably 35% or less, even more preferably 30% or less, and particularly preferably 20% or less.
• the resin composition according to the present invention can be molded into a molded article according to the intended purpose using conventional molding methods such as injection molding, injection compression molding, extrusion molding, and hot press molding.
• the molded article formed using the resin composition according to the present invention can be applied to housings, exteriors, decorative panels, and decorative sheets, and can be used in place of components used in, for example, electronic devices, home appliances, building materials, furniture, and automobiles.
• it can be used in housings and exterior parts of electronic devices and home appliances, interior components of building materials, and interior materials for automobiles.
• Applications for electronic devices or home appliances include housings for personal computers, landline phones, mobile phone terminals, smartphones, tablets, POS terminals, routers, projectors, speakers, lighting equipment, copiers, multifunction printers, calculators, remote controls, refrigerators, washing machines, humidifiers, dehumidifiers, video recorders/players, vacuum cleaners, air conditioners, rice cookers, electric shavers, electric toothbrushes, dishwashers, broadcasting equipment, clock dials and exteriors, and cases for mobile devices such as smartphones.
• Automotive applications include interior instrument panels, dashboards, cup holders, door trim, armrests, door handles, door locks, steering wheels, brake levers, ventilators, shift levers, etc.
• ⁇ Transparency (Haze)> The haze of a disk-shaped evaluation sample having a diameter of 50 mm and a thickness of 300 ⁇ m was measured with a haze meter (manufactured by Murakami Color Research Laboratory, product name: HM-65W type, conforming to JIS K 7136). A D65 light source was used.
• a Charpy impact test was carried out using an evaluation sample having a shape of JIS K 7162 test piece 1A in accordance with JIS K7111-1 (notched: Type A (notch cutter tip R 0.25 mm)).
• UL94V is a method in which a burner flame (20 ⁇ 1 mm flame) is applied to the lower end of a test piece of a certain size held vertically for 10 seconds, and the flame retardancy is evaluated based on the subsequent burning time and dripping properties, etc., and the flame retardancy is classified into grades 5V-A, 5V-B, V-0, V-1, V-2, and HB, arranged from best to worst. Flame retardancy of V-2 or higher is considered good. The test was evaluated for conformity with the V-2 class shown in Table 1 below. ⁇ : Compliant ⁇ : Non-compliance
• the flaming combustion time is the length of time the test specimen continues to burn with a flame after the ignition source (burner) is removed, where t1 is the burning time after the first flame application, t2 is the burning time after the second flame application, and t3 is the afterglow (flameless combustion) time after the second flame application.
• the second flame application is performed by immediately applying the burner flame to the test specimen for 10 seconds if the flame goes out after the first flame application.
• the ignition of cotton by drips is determined by whether the marking cotton located 300 ⁇ 10 mm below the bottom end of the test specimen is ignited by drips from the test specimen.
• the amount of the specific polyester (component C) is preferably 0.5% by mass or more, more preferably 1.0% by mass or more, and also preferably less than 15% by mass, and more preferably 10% by mass or less, relative to the total content of components A, B, and C (100% by mass). Furthermore, it was confirmed that the amount of the phosphate ester plasticizer (component B) is preferably 15 to 35% by mass, more preferably 30% by mass or less, and particularly preferably 25% by mass or less, relative to the total content of components A, B, and C (100% by mass).
• Component A cellulose acetate
• Component B a plasticizer which is a phosphoric acid ester
• Component C polyester, Including, The content of component B is 15 to 35% by mass relative to 100% by mass of the total content of components A, B and C, A cellulose-based resin composition, wherein the content of component C is 0.5 to 15 mass% relative to 100 mass% of the total content of components A, B and C.
• Appendix 2 The cellulose-based resin composition according to Appendix 1, wherein the component B is at least one selected from the group consisting of triphenyl phosphate, triethyl phosphate, tributyl phosphate, tricresyl phosphate, cresyl di-2,6-xylenyl phosphate, and a compound represented by the following formula (2): (Appendix 3) The cellulose-based resin composition according to claim 1 or 2, wherein the component C is at least one selected from the group consisting of polybutylene succinate, polybutylene succinate adipate, and polylactic acid.
• Appendix 11 The cellulose-based resin composition of any of the preceding paragraphs, further comprising glass fibers.
• Appendix 12 12. The cellulose-based resin composition according to claim 11, wherein the amount of glass fiber is 0.5 to 10% by mass based on the total composition.
• Appendix 13 4. The cellulose-based resin composition of any of the preceding paragraphs, further comprising a hydrolysis inhibitor.
• Appendix 14 The cellulose-based resin composition according to claim 13, wherein the amount of the hydrolysis inhibitor is 0.1 to 5% by mass, based on 100% by mass of the total content of components A, B, and C.
• Component A cellulose acetate
• Component B a plasticizer which is a phosphoric acid ester
• Component C polyester
• the component B is at least one selected from the group consisting of triphenyl phosphate, triethyl phosphate, tributyl phosphate, tricresyl phosphate, cresyl di-2,6-xylenyl phosphate, and a compound represented by the following formula (2):
• the component C is at least one selected from the group consisting of polybutylene succinate, polybutylene succinate adipate, and polylactic acid,
• the content of the component A is 50 to 85% by mass relative to 100% by mass of the total content of the components A, B and C
• the content of component B is 15 to 35% by mass relative to 100% by mass of the total content of components A, B and C,
• a cellulose-based resin composition wherein the content of component C is 0.5 to 15 mass% relative to 100 mass% of the total content of components A
• (Appendix 16) A molded article formed using the cellulose-based resin composition according to any one of the preceding appendices.
• (Appendix 17) The molded body according to claim 16, wherein the haze value of the molded body having a thickness of 300 ⁇ m is 55% or less.
• (Appendix 18) The molded body according to claim 16, wherein the haze value of the molded body having a thickness of 300 ⁇ m is 35% or less.
• (Appendix 19) The molded body according to claim 16, wherein the haze value of the molded body having a thickness of 300 ⁇ m is 30% or less.
• the electronic device or home appliance is any one of a personal computer, a landline phone, a mobile phone terminal, a smartphone, a tablet, a POS terminal, a router, a projector, a speaker, a lighting fixture, a copier, a multifunction printer, a calculator, a remote control, a refrigerator, a washing machine, a humidifier, a dehumidifier, a video recorder/player, a vacuum cleaner, an air conditioner, a rice cooker, an electric shaver, an electric toothbrush, a dishwasher, a broadcasting equipment, and a clock.

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• 2023
  • 2023-11-14 WO PCT/JP2023/040944 patent/WO2024106436A1/ja not_active Ceased
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