JP2006249241A - Resin composition and molded article - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a resin composition and a molded article which have flame resistance and impact resistance. <P>SOLUTION: The resin composition is prepared by blending polybutylene succinate with aluminium hydroxide surface-treated with a silane coupling agent wherein a percent ratio of a mass of aluminium hydroxide surface-treated with the silane coupling agent to a total mass of polybutylene succinate and aluminium hydroxide surface-treated with the silane coupling agent is 15-50% by mass. The molded article molded with the resin composition has flame resistance and impact resistance. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a flame retardant resin composition and a molded body, and particularly to a flame retardant and impact resistant resin composition and a molded body.

  Plastics are now widely used in every field such as daily life and industry, and the demand for plastics is increasing year by year. Plastics are used in various applications utilizing their excellent physical properties, molding processability, etc., for example, in the molding field of film packaging materials, home appliances, OA equipment, automobile parts and the like.

  Flame retardant properties are required for molded articles used for home appliances, OA equipment, automobile parts and the like to prevent fire. For example, halogen and flame retardants such as brominated flame retardants have mainly been used because polystyrene and ABS resins are easily combusted. However, harmful gases such as dioxins may be generated from halogen flame retardants during combustion. There were safety issues in waste incineration and thermal recycling. Phosphorus compounds are available as an alternative to halogen-based flame retardants, but there are problems in that safety and environmental harmony are insufficient, and there are also adverse effects on practical aspects such as moldability and heat resistance. For this reason, substitution of halogenated flame retardants and phosphorus compounds is progressing. For example, metals typified by aluminum hydroxide or magnesium hydroxide as environment-friendly flame retardants that do not generate harmful gases during decomposition. Hydroxides are drawing attention. Aluminum hydroxide, for example, has a decomposition initiation temperature of about 180 ° C, which is very low, but has excellent endotherm and cost, and is used to impart flame retardancy of polyethylene and polypropylene that can be processed at low processing temperatures. ing.

  However, since polyethylene and polypropylene have high combustion calories, when adding aluminum hydroxide to impart flame retardancy to polyethylene or polypropylene, it is necessary to add a large amount of metal hydroxide of 60% by mass or more. . As a result, the mechanical properties are significantly reduced.

  For example, in JP-A-8-252823, flame retardancy is imparted by blending 30% to 50% by weight of aluminum hydroxide or magnesium hydroxide into pellets using polybutylene succinate as a biodegradable plastic raw material. However, in this method, it is necessary to add a large amount of aluminum hydroxide or magnesium hydroxide, resulting in a decrease in mechanical properties. In addition, since this method uses aluminum hydroxide that has not been surface-treated, sufficient flame retardancy cannot be imparted, and this is not a practically sufficient technique.

  Japanese Patent Laid-Open No. 2000-319532 discloses a technique for imparting flame retardancy by blending silicon oxide with a biodegradable organic polymer compound, but silicon oxide suppresses combustion. This is difficult and is not suitable for flame retarding of polyesters such as polybutylene succinate that does not have self-extinguishing properties.

JP-A-8-252823 JP 2000-319532 A

  Thus, in the conventional method for imparting flame retardancy, it is necessary to blend a large amount of magnesium hydroxide or aluminum hydroxide, resulting in a significant decrease in mechanical strength.

  The present invention has been made to solve the above problems, and an object of the present invention is to provide a resin composition and a molded product having impact resistance and flame retardancy.

As a result of intensive studies in view of such a current situation, the present inventors have completed the present invention with high effects.
The resin composition of the present invention is a resin composition obtained by blending polybutylene succinate with aluminum hydroxide surface-treated with a silane coupling agent, wherein the polybutylene succinate and the silane coupling agent are used. The ratio of the aluminum hydroxide surface-treated with the silane coupling agent in the total mass with the surface-treated aluminum hydroxide is 15% by mass or more and 50% by mass or less.

  Here, the average particle diameter of the aluminum hydroxide surface-treated with the silane coupling agent may be 0.1 μm or more and 10 μm or less.

  The resin composition of the present invention can further contain a carbodiimide compound, and the amount of the carbodiimide compound is 0.5 parts by mass or more and 5 parts by mass or less with respect to 100 parts by mass of the polybutylene succinate. It is preferable that

  The molded product of the present invention is characterized by using any of the above resin compositions. Moreover, the said molded object can be a film, a sheet | seat, or an injection molded object.

  According to the present invention, flame retardancy can be imparted without causing a significant decrease in mechanical properties, and therefore a resin composition and molded article having impact resistance and flame retardancy can be provided.

BEST MODE FOR CARRYING OUT THE INVENTION

The present invention will be described below.
The resin composition of the present invention includes polybutylene succinate and aluminum hydroxide surface-treated with a silane coupling agent.

  The polybutylene succinate used in the present invention is obtained by polymerizing succinic acid and 1,4-butanediol. As polybutylene succinate, for example, “GSPla” series manufactured by Mitsubishi Chemical Corporation, “Bionore” series manufactured by Showa High Polymer Co., Ltd., and the like are commercially available.

  The aluminum hydroxide used in the present invention is surface-treated with a silane coupling agent. By blending the aluminum hydroxide surface-treated with the silane coupling agent, satisfactory flame retardancy can be imparted with a small blending amount, and hence a decrease in mechanical strength can be suppressed. Furthermore, aluminum hydroxide has an advantage that it is very excellent in terms of cost and endothermic amount. Therefore, it can be used in a wide range of applications where flame retardancy and impact resistance are required.

  Examples of the silane coupling agent include epoxy silane, vinyl silane, methacryl silane, amino silane, and isocyanate silane. In consideration of dispersibility and flame retardancy, it is preferable to use epoxy silane or vinyl silane.

  In this invention, it is preferable that the compounding quantity of the aluminum hydroxide surface-treated with the silane coupling agent is 15-50 mass% in the total mass of polybutylene succinate and aluminum hydroxide, and 20-40 mass. % Is more preferable. If the blending amount of aluminum hydroxide is less than 15% by mass, flame retardancy cannot be imparted to polybutylene succinate. On the other hand, if it exceeds 50% by mass, a significant decrease in mechanical strength occurs. This is a practical problem.

  The average particle diameter of aluminum hydroxide surface-treated with a silane coupling agent is preferably 0.1 μm to 10 μm, and more preferably 0.5 μm to 5 μm. If the average particle size of aluminum hydroxide is 0.1 μm or more, there will be no dispersion failure due to aggregation, neither mechanical strength nor flame retardancy will be reduced, and if the average particle size is 10 μm or less. In addition, there is no significant decrease in mechanical strength. By using aluminum hydroxide having an average particle size of 0.1 μm to 10 μm, the mechanical strength and flame retardancy of the resin composition can be further improved.

  The aluminum hydroxide surface-treated with the silane coupling agent used in the present invention preferably has a moisture content of 0.1% or less, and more preferably 0.05% or less. If the adhesion water | moisture content of aluminum hydroxide is 0.1% or less, when manufacturing a product etc. from a resin composition, or when using a product etc., hydrolysis of resin etc. can be suppressed. The adhesion moisture of aluminum hydroxide is, for example, about 0.5 g of aluminum hydroxide (however, weighed to a unit of 0.1 mg) and Karl Fischer moisture meter (MKC-510N manufactured by Kyoto Electronics Industry Co., Ltd.). ) To measure the water content at a temperature of 120 ° C.

  In the present invention, the flame retardant effect can be further improved by blending a flame retardant aid in addition to the aluminum hydroxide. Flame retardant aids used include metal compounds such as zinc stannate, zinc borate, iron nitrate, copper nitrate, and sulfonic acid metal salts, phosphorus compounds such as red phosphorus, high molecular weight phosphate esters and phosphazene compounds, melamine shear Examples thereof include nitrogen compounds such as nurate, silicone compounds such as dimethyl silicone, phenyl silicone, and fluorine silicone, and nitric acid compounds such as ammonium nitrate.

In the present invention, a carbodiimide compound can be further blended in order to impart hydrolysis resistance. Preferred examples of the carbodiimide compound to be used include those having a basic structure represented by the following general formula.

-(N = C = N-R-) n-

However, in the formula, R represents an organic bond unit, and may be, for example, aliphatic, alicyclic or aromatic. n represents an integer of 1 or more, and is usually appropriately determined between 1 and 50. When n is 2 or more, two or more R may be the same or different.

  Specifically, for example, bis (dipropylphenyl) carbodiimide, poly (4,4′-diphenylmethanecarbodiimide), poly (p-phenylenecarbodiimide), poly (m-phenylenecarbodiimide), poly (tolylcarbodiimide), poly ( Examples of the carbodiimide compound include diisopropylphenylenecarbodiimide), poly (methyl-diisopropylphenylenecarbodiimide), poly (triisopropylphenylenecarbodiimide), and the like. These carbodiimide compounds may be used alone or in combination of two or more.

  Specific examples of the carbodiimide compound include “STABAXOL” series manufactured by Rhein Chemie, “Carbodilite” series manufactured by Nisshinbo Co., Ltd., and the like.

  The blending amount of the carbodiimide compound is preferably 0.5% by mass to 5% by mass and more preferably 1% by mass to 4% by mass with respect to 100 parts by mass of the polybutylene succinate. If the blending ratio of the carbodiimide compound is 0.5% by mass or more and 5% by mass or less, durability can be imparted and no problem is caused in flame retardancy.

  The resin composition of the present invention is blended with additives such as a heat stabilizer, an antioxidant, a nucleating agent, a UV absorber, a light stabilizer, a pigment, and a dye as long as the effects of the present invention are not impaired. Can do.

Next, a method for forming a molded body using the resin composition of the present invention will be described.
Each raw material such as polybutylene succinate, aluminum hydroxide surface-treated with a silane coupling agent, and, if necessary, carbodiimide compound and other additives, is put into the same extruder or injection molding machine. By directly kneading and molding, a molded body can be formed. Alternatively, a dry blended raw material is extruded into a strand shape using a twin-screw extruder to produce pellets, and the pellets are placed in an injection molding machine, an extruder, etc. to form a film, sheet, plate, etc. The formed body can be formed.

  Regardless of which method is employed, it is necessary to consider a decrease in molecular weight due to decomposition of the raw material, but the latter is preferably selected in order to uniformly mix the raw materials. For example, polybutylene succinate, specific aluminum hydroxide and, if necessary, carbodiimide compound and other additives are thoroughly dried to remove moisture, and then melted using a twin screw extruder. Mix and extrude into strand shape to make pellets. It is preferable to select the melt extrusion temperature as appropriate in consideration of the melting point of the mixed resin changing depending on the mixing ratio of polybutylene succinate and other additives, decomposition of aluminum hydroxide, and the like. In practice, a temperature range of 140 ° C. to 230 ° C. is usually selected.

  After the pellets produced by the above method are sufficiently dried to remove moisture, a molded body such as a film, a sheet, or an injection molded body is formed. A roll stretching method, a tenter stretching method, a tubular method, an inflation method, or the like is employed as a molding method for a film, a sheet, and the like. Is adopted.

  As a method for producing an injection-molded body, for example, an injection molding method such as an injection molding method, a gas assist molding method, or an injection compression molding method generally employed when molding a thermoplastic resin can be employed. In addition to the above methods, an in-mold molding method, a gas press molding method, a two-color molding method, a sandwich molding method, PUSH-PULL, SCORIM, or the like can also be employed in accordance with other purposes. However, the injection molding method is not limited to these.

  The injection molding apparatus used is a general injection molding machine, gas assist molding machine, injection compression molding machine, etc., molding molds and incidental equipment used in these molding machines, mold temperature control device, raw material drying device Etc. Molding conditions are preferably such that the molten resin temperature is in the range of 170 ° C. to 210 ° C. in order to avoid thermal decomposition of the resin in the injection cylinder.

  According to the present invention, since polyhydrylene succinate whose combustion calorie is about half of polyethylene (about 5,000 cal / g) is blended with aluminum hydroxide surface-treated with a silane coupling agent, hydroxylation during combustion Excellent flame retardancy can be imparted by the dehydration reaction and endothermic reaction of aluminum. In addition, since the calorie burned by polybutylene succinate is low, the effect is exhibited even if the amount of aluminum hydroxide is small, and the decrease in mechanical strength can be minimized.

In addition, polybutylene succinate has high crystallinity, excellent heat resistance, and excellent impact resistance, so it contains aluminum hydroxide, which is an environmentally friendly low harmful and low smoke retardant flame retardant. By making it flame retardant, it can be used for applications that require flame retardancy and impact resistance, such as home appliances, OA equipment, and automobile parts.

  The present invention will be specifically described below with reference to examples. However, the present invention is not limited to these examples, and various applications are possible without departing from the technical scope of the present invention. In addition, each Example and each comparative example evaluated by the method shown below.

(1) Flame retardance Burning was performed at n = 5 using a test piece of length 135.0 mm × width 13.0 mm × thickness 1.5 mm based on the safety standard UL94 vertical combustion test procedure of Underwriters Laboratories. The test was conducted. Judgment was made based on the criteria of UL94 vertical combustion test (UL94V), and those satisfying the V-2 criteria were accepted.

(2) Impact resistance Based on Japanese Industrial Standard JIS K-7110, No. 2 A test piece (notched, length 64.0 mm x width 12.7 mm x thickness 4.0 mm) The Izod impact strength at 23 ° C. was measured using JISL-D made by the manufacturer. An Izod impact strength of 5 kJ / m ² or more was accepted.

(3) Durability A test piece having a length of 64.0 mm, a width of 12.7 mm, and a thickness of 4.0 mm was used. Using a small environmental tester SH-241 manufactured by ESPEC CORP., The test piece was subjected to a wet heat test under the conditions of a temperature of 85 ° C. and a relative humidity of 80% RH. The Izod impact strength after 100 hours was measured, and the Izod impact strength before the wet heat test and the Izod impact strength after 100 hours were substituted into the following formula to calculate the Izod impact strength retention rate. It should be noted that since the deterioration of the strength abruptly progresses when the Izod impact strength retention rate falls below 70%, a practical standard having an Izod impact strength retention rate of 70% or more was set.

Izod impact strength retention rate (%) =
(Izod impact strength after wet heat test / Izod impact strength before wet heat test) × 100

Example 1
HP-350STE (epoxysilane) manufactured by Showa Denko KK as aluminum hydroxide surface-treated with a silane coupling agent using GSPla AZ91T (weight average molecular weight 180,000) manufactured by Mitsubishi Chemical Corporation as polybutylene succinate Coupling agent treatment, average particle size 3 μm, adhesion water 0.02%) was used. After dry blending GSPla AZ91T and HP-350STE at a mass ratio of 80:20, the mixture was compounded at 180 ° C. using a 40 mmφ small-sized co-directional twin screw extruder manufactured by Mitsubishi Heavy Industries, Ltd. Shaped. The obtained pellet was used as a test piece for evaluation of flame retardancy using an injection molding machine “IS50E” (screw diameter: 25 mm) manufactured by Toshiba Machine Co., Ltd. Length 135.0 mm × width 13.0 mm × thickness 1.5 mm A test piece of length 64.0 mm × width 12.7 mm × thickness 4.0 mm was injection molded as a test piece for impact resistance evaluation. However, the main molding conditions are as shown below.

・ Temperature conditions: Cylinder temperature (195 ° C) Mold temperature (20 ° C)
・ Injection conditions: Injection pressure (115 MPa) Holding pressure (55 MPa)
・ Weighing conditions: Screw rotation speed (65rpm) Back pressure (15MPa)

  The obtained injection molded article (test piece) was evaluated for flame retardancy and impact resistance. The results are shown in Table 1.

(Example 2)
In Example 1, it implemented except having changed the compounding ratio of GSPla AZ91T and aluminum hydroxide of the pellet used for formation of an injection molding so that it might become GSPla AZ91T: HP-350STE = 70: 30 by mass ratio. Pellets were produced in the same manner as in Example 1, and injection molded bodies (test pieces) were produced.
About the obtained injection molded object (test piece), evaluation similar to Example 1 was performed. The results are shown in Table 1.

(Example 3)
In Example 1, it implemented except having changed the compounding ratio of GSPla AZ91T and aluminum hydroxide of the pellet used for formation of an injection-molded body so that it might become GSPla AZ91T: HP-350STE = 60: 40 by mass ratio. Pellets were produced in the same manner as in Example 1, and injection molded bodies (test pieces) were produced.
About the obtained injection molded object (test piece), evaluation similar to Example 1 was performed. The results are shown in Table 1.

Example 4
In Example 1, it implemented except having changed the compounding ratio of GSPla AZ91T and aluminum hydroxide of the pellet used for formation of an injection molding so that it might become GSPla AZ91T: HP-350STE = 50: 50 by mass ratio. Pellets were produced in the same manner as in Example 1, and injection molded bodies (test pieces) were produced.
About the obtained injection molded object (test piece), evaluation similar to Example 1 was performed. The results are shown in Table 1.

(Example 5)
In Example 1, instead of HP-350STE as aluminum hydroxide surface-treated with a silane coupling agent, HP-350STV (vinyl silane coupling agent treatment, average particle diameter of 3 μm, adhesion water 0, manufactured by Showa Denko KK) .02%) was used. The same as in Example 1 except that the blending ratio of GSPla AZ91T and aluminum hydroxide in the pellets used for forming the injection-molded body was dry blended so that GSPla AZ91T: HP-350STV = 70: 30 by mass ratio. A pellet was prepared, and an injection molded body (test piece) was prepared.
About the obtained injection molded object (test piece), evaluation similar to Example 1 was performed. The results are shown in Table 1.

(Example 6)
In Example 1, instead of HP-350STE as aluminum hydroxide surface-treated with a silane coupling agent, HP-320STE (epoxysilane coupling agent treatment, average particle size 9.1 μm, manufactured by Showa Denko KK) Adhesive moisture 0.05%) was used. The same as in Example 1 except that the blending ratio of GSPla AZ91T and aluminum hydroxide in the pellets used for forming the injection-molded body was dry blended so that GSPla AZ91T: HP-320STE = 70: 30 by mass ratio. A pellet was prepared, and an injection molded body (test piece) was prepared.
About the obtained injection molded object (test piece), evaluation similar to Example 1 was performed. The results are shown in Table 1.

(Comparative Example 1)
In Example 1, an injection molded article (test piece) was produced in the same manner as in Example 1 except that pellets made of polybutylene succinate GSPla AZ91T were produced without using aluminum hydroxide.
About the obtained injection molded object (test piece), evaluation similar to Example 1 was performed. The results are shown in Table 2.

(Comparative Example 2)
In Example 1, it implemented except having changed the compounding ratio of GSPla AZ91T and aluminum hydroxide of the pellet used for formation of an injection molding so that it might become GSPla AZ91T: HP-350STE = 90: 10 by mass ratio. Pellets were produced in the same manner as in Example 1, and injection molded bodies (test pieces) were produced.
About the obtained injection molded object (test piece), evaluation similar to Example 1 was performed. The results are shown in Table 2.

(Comparative Example 3)
In Example 1, it implemented except having changed the compounding ratio of GSPla AZ91T and aluminum hydroxide of the pellet used for formation of an injection molding so that it might become GSPla AZ91T: HP-350STE = 40: 60 by mass ratio. Pellets were produced in the same manner as in Example 1, and injection molded bodies (test pieces) were produced.
About the obtained injection molded object (test piece), evaluation similar to Example 1 was performed. The results are shown in Table 2.

(Comparative Example 4)
In Example 1, instead of aluminum hydroxide (HP-350STE) surface-treated with a silane coupling agent, H-42 (no surface treatment, manufactured by Showa Denko KK) was used as aluminum hydroxide that was not surface-treated. An average particle size of 1.1 μm) was used. Pellets were produced in the same manner as in Example 1 except that the blend ratio of GSPla AZ91T and H-42 was dry blended so that the mass ratio was GSPla AZ91T: H-42 = 70: 30. A molded body (test piece) was prepared.
About the obtained injection molded object (test piece), evaluation similar to Example 1 was performed. The results are shown in Table 2.

(Comparative Example 5)
In Example 1, instead of aluminum hydroxide surface-treated with a silane coupling agent (HP-350STE), aluminum hydroxide surface-treated with stearic acid was used as H-42S (stearic acid) manufactured by Showa Denko K.K. Treatment, average particle size 1.1 μm) was used. Pellets were produced in the same manner as in Example 1 except that the blend ratio of GSPla AZ91T and H-42S was dry blended so that the mass ratio was GSPla AZ91T: H-42S = 70: 30. A molded body (test piece) was prepared.
About the obtained injection molded object (test piece), evaluation similar to Example 1 was performed. The results are shown in Table 2.

(Comparative Example 6)
In Example 1, instead of polybutylene succinate, block polypropylene (Idemitsu Petrochemical Co., Ltd., F274NP) was used. Pellets were produced in the same manner as in Example 1 except that the blending ratio of polypropylene and aluminum hydroxide was dry blended so that the mass ratio was F274NP: HP-350STE = 50: 50. (Test piece) was prepared.
About the obtained injection molded object (test piece), evaluation similar to Example 1 was performed. The results are shown in Table 2.

(Comparative Example 7)
In Example 1, instead of polybutylene succinate, NatureWorks 4032D (L-lactic acid / D-lactic acid = 98.6 / 1.4, weight average molecular weight 200,000) manufactured by Cargill Dow was used as polylactic acid. Pellets were produced in the same manner as in Example 1 except that the blending ratio of polylactic acid and aluminum hydroxide was dry blended so that the mass ratio of NatureWorks 4032D: HP-350STE = 70: 30, and injection molding was performed. A body (test piece) was prepared.
About the obtained injection molded object (test piece), evaluation similar to Example 1 was performed. The results are shown in Table 2.

(Example 7)
In Example 1, carbodilite LA-1 (aliphatic polycarbodiimide) manufactured by Nisshinbo Co., Ltd. was used as the carbodiimide compound, and the blending ratio of polybutylene succinate, aluminum hydroxide and carbodiimide compound in terms of mass ratio, GAPla AZ91T: HP-350STE: Carbodilite LA-1 = Pellets were prepared in the same manner as in Example 1 except that dry blending was performed at a ratio of 70: 30: 3. A piece (length 64.0 mm × width 12.7 mm × thickness 4.0 mm) was produced.
The obtained injection-molded body (test piece) was evaluated for durability. The results are shown in Table 3. In addition, the wet heat test was done also about the injection molded object produced as an object for evaluation of impact resistance of Example 2, and durability was evaluated. The results are shown in Table 3.

(Example 8)
In Example 1, Stabuxol P (aromatic polycarbodiimide) manufactured by Rhein Chemie was used as the carbodiimide compound, and the blending ratio of polybutylene succinate, aluminum hydroxide and carbodiimide compound in terms of mass ratio, GAPla AZ91T: HP- A pellet was prepared in the same manner as in Example 1 except that the dry blending was performed at a ratio of 350 STE: Starvacol P = 70: 30: 1, and a test piece (length 64.0 mm × width) was formed by injection molding. 12.7 mm × thickness 4.0 mm) was produced.
Durability evaluation was performed about the obtained injection molded object (test piece). The results are shown in Table 3.

As is apparent from Table 1, the injection-molded bodies made of the resin compositions of Examples 1 to 6 have flame retardancy based on the UL94 vertical combustion test satisfying the V-2 standard, and the Izod impact strength is 5 kJ / m. ^{It was 2} or more, and was excellent in flame retardancy and impact resistance.

On the other hand, as is clear from Table 2, the injection-molded bodies made of the resin compositions of Comparative Examples 1 and 2 have an Izod impact strength of 5 kJ / m ² or more and excellent impact resistance, but flame retardancy is V. -2 It was found to be out of the standard that does not meet the standards and inferior in flame retardancy. The injection-molded article made of the resin composition of Comparative Example 3 was inferior in impact resistance, although the flame retardancy based on the UL94 vertical combustion test satisfied the V-0 standard. The injection molded articles of Comparative Examples 4 to 6 were inferior in both flame retardancy and impact resistance. The injection-molded article made of the resin composition of Comparative Example 7 satisfied the V-2 standard for flame retardancy, but was inferior in impact resistance. That is, the resin compositions of Comparative Examples 1 to 7 were at levels that were not practical in at least one of flame retardancy and durability.

  Further, as apparent from Table 3, it was found that durability can be remarkably improved by further blending a carbodiimide compound with aluminum hydroxide surface-treated with polybutylene succinate and a silane coupling agent.

  As described above, according to the present invention, since flame retardancy can be imparted without significantly reducing mechanical properties, a resin composition having flame retardancy and impact resistance can be obtained. Moreover, since the molded body formed using the resin composition of the present invention has excellent flame retardancy and impact resistance, it is used for home appliances and automobiles that require flame retardancy, impact resistance, etc. Can be widely used for.

The resin composition of the present invention can be widely used for applications that require both flame retardancy and impact resistance, and can be used, for example, for home appliances and automotive products. In addition, it can also be used as electrical and electronic equipment parts, daily necessities, food containers, and other general injection molded products.

Claims (5)

  A resin composition obtained by blending polybutylene succinate with aluminum hydroxide surface-treated with a silane coupling agent, the polybutylene succinate and aluminum hydroxide surface-treated with the silane coupling agent, The resin composition, wherein the proportion of aluminum hydroxide surface-treated with the silane coupling agent in the total mass of is 15% by mass or more and 50% by mass or less.   2. The resin composition according to claim 1, wherein the average particle diameter of the aluminum hydroxide surface-treated with the silane coupling agent is 0.1 μm or more and 10 μm or less.   The carbodiimide compound is further blended, and the blending amount of the carbodiimide compound is 0.5 parts by mass or more and 5 parts by mass or less with respect to 100 parts by mass of the polybutylene succinate. Resin composition.   A molded body comprising the resin composition according to any one of claims 1 to 3. The molded body according to claim 4, wherein the molded body is a film, a sheet, or an injection molded body.