JP2012001608A - Compound, resin composition, and resin molded product - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a compound having improved hydrolysis resistance and a crystallization rate.SOLUTION: The compound is represented by general formula (1). In general formula (1), Ris a 1-6C alkyl group; Rto Rare each independently a hydrogen atom, a 1-8C alkyl group, or a 6-14C aryl group; and n is a natural number of 1-50,000.

Description

  The present invention relates to a compound, a resin composition, and a resin molded body.

  Conventionally, various resin compositions have been provided and used for various applications. In particular, it is used for various parts and casings of home appliances and automobiles, and thermoplastic resin is also used for parts such as casings for office equipment and electronic and electrical equipment.

  Here, a polylactic acid fiber whose end is blocked with a carbodiimide compound has been proposed as a resin composition constituting the polylactic acid fiber (see, for example, Patent Document 1).

JP 2003-301327 A

  An object of the present invention is to provide a compound having improved hydrolysis resistance and crystallization speed as compared with the case where the structure represented by the general formula (1) is not provided.

The above object is achieved by the present invention described below.
That is, the invention according to claim 1
It is a compound represented by the following general formula (1).

(In General Formula (1), R ¹ is an alkyl group having 1 to 6 carbon atoms, R ^{2 to} R ⁶ are each independently a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, or 6 to 14 carbon atoms. In the following aryl groups, n represents a natural number of 1 or more and 50000 or less.)

The invention according to claim 2
It is a compound of Claim 1 obtained by reaction with aliphatic polyester and benzoic acid esters.

The invention according to claim 3
A resin composition comprising the compound according to claim 1.

The invention according to claim 4
It is a resin molding containing the compound of Claim 1 or Claim 2.

  According to the invention which concerns on Claim 1, 2, compared with the case where it does not have the structure represented by General formula (1), the compound which improved the hydrolysis resistance and the crystallization rate is provided.

  According to the invention which concerns on Claim 3, compared with the case where the compound of Claim 1 or Claim 2 is not included, the resin composition which improved the flame retardance is provided.

  According to the invention which concerns on Claim 4, compared with the case where the compound of Claim 1 or Claim 2 is not included, the resin molding which the flame retardance improved is provided.

It is a schematic diagram which shows an example of the components of an electronic / electric equipment provided with the resin molding which concerns on this embodiment. It is a figure which shows the absorption spectrum at the time of identifying the compound 1. It is a figure which shows the absorption spectrum at the time of identifying the compound 2. It is a figure which shows the absorption spectrum at the time of identifying the compound 3. It is a figure which shows the absorption spectrum at the time of identifying the compound 4.

Hereinafter, embodiments of the compound, the resin composition, and the resin molded body of the present invention will be described.
≪Compound≫
The compound according to this embodiment is represented by the following general formula (1).

(In General Formula (1), R ¹ is an alkyl group having 1 to 6 carbon atoms, R ^{2 to} R ⁶ are each independently a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, or 6 to 14 carbon atoms. In the following aryl groups, n represents a natural number of 1 or more and 50000 or less.)

  In general, aliphatic polyesters have low flame retardancy alone. For this reason, when it is necessary to impart flame retardancy, for example, when forming a resin molded article, generally known flame retardants are added. . However, to obtain sufficient flame retardancy in consideration of safety, it is necessary to increase the amount of flame retardant added, and as a result, (a) lower mechanical strength, (b) lower heat resistance, (c) Acceleration of hydrolyzability, (d) delay in crystallization rate, etc. may occur.

  Here, the compound according to the present embodiment is an aliphatic polyester having a molecular chain terminal modified with a phenyl carbonate derivative as represented by the general formula (1). Even without adding a flame retardant, the compound exhibits a high flame retardancy compared to a general aliphatic polyester, and a small amount of a flame retardant is added to the general aliphatic polyester. In this case, it has been found that high flame retardancy is realized as compared with general aliphatic polyester. As a result, according to the compound according to the present embodiment, the above (a) to (d) are suppressed.

Although this mechanism is not clear, it is presumed as follows.
In the compound according to this embodiment, the phenyl carbonate derivative reacts with the aliphatic polyester when burned, and forms a carbide layer on the surface during burning. For this reason, it is considered that the flame retardancy is expressed by physically acting so as to prevent radiation from the heat source to the compound and diffusion of the decomposition gas from the compound to the atmosphere. This layer is considered to be formed specifically because it is a combination of a phenyl carbonate derivative and an aliphatic polyester. In addition, since the carbide layer is formed during combustion, the effect is synergistically improved even when a small amount of flame retardant is used as described above. Moreover, it is thought that the hydrolysis resistance is improved because free hydroxyl groups are reduced and water absorption is reduced as a result of modification of molecular chain ends with phenyl carbonate derivatives.
Further, regarding the improvement of the crystallization speed, in the compound according to the present embodiment, the phenyl carbonate derivative can exist in one regular configuration with one molecular chain of the aliphatic polyester, so that the π-π interaction between benzene rings. It is considered that the arrangement by (stacking interaction) is enhanced and the speed is increased.

Also, when trying to mix a polycarbonate containing a phenyl carbonate group for the purpose of obtaining flame retardancy with a general aliphatic polyester, the melting temperature range of the two is different, so mixing by ordinary kneading Will be difficult. In addition, it is conceivable to forcibly mix the two by ignoring the difference in the melting temperature range, but by applying a compatibilizing agent, to obtain flame retardancy, mix the same amount or more of polycarbonate with aliphatic polyester. It is thought that it is necessary to do.
On the other hand, the compound which concerns on this embodiment discovered that a flame retardance was acquired, without mixing other resin which has a flame retardance in large quantities.

In the compound represented by the general formula (1), the alkyl group having 1 to 6 carbon atoms represented by R ¹ is more preferably a methyl group, a propyl group, a butyl group or a hexyl group, and a methyl group or butyl group is preferred. And hexyl groups are particularly preferred. A linear alkyl group is preferred.
R ^{2 to} R ⁶ are further preferably a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, more preferably a hydrogen atom, a methyl group or a phenyl group, and particularly preferably a hydrogen atom or a methyl group. Further, when a substituent other than a hydrogen atom is substituted, an embodiment in which R ³ and R ⁵ are substituted and R ² , R ⁴ and R ⁶ are hydrogen atoms is particularly preferable.
n is preferably from 1 to 50000, particularly preferably from 50 to 20000. When n is 0, the flame retardancy is lowered, and when it exceeds 50000, the crystallization rate is lowered.
Specific examples of the compound represented by the general formula (1) are shown below. However, the compound according to the present embodiment is not limited to the following specific examples.

-Synthesis method Although the compound represented by the said General formula (1) which concerns on this embodiment is not specifically limited, For example, it obtains by making aliphatic polyester and benzoic acid ester react. In the reaction, it is preferable to knead and heat both, for example, a method of synthesis by heating and kneading using a biaxial extruder or the like.

  As the aliphatic polyester, any of a dicarboxylic acid / diol condensation system and a hydroxycarboxylic acid condensation system can be used. For example, polylactic acid, polyhydroxy-3-butylbutyric acid, polyhydroxy-3-hexylbutyric acid and the like are preferable.

  Preferred examples of the benzoic acid esters include benzoic acid, methyl benzoate, methyl 3,5-methylbenzoate and the like.

  The biaxial extrusion device is not particularly limited, and a known one is used. For example, TEM58SS manufactured by Toshiba Machine Co., Ltd. is used. The timing of charging the aliphatic polyester and benzoic acid ester into the apparatus is not particularly limited, and they may be charged simultaneously. The heating temperature, time, and the like vary depending on the type of aliphatic polyester.

≪Resin composition≫
The resin composition according to the present embodiment includes the compound represented by the general formula (1) according to the present embodiment. Further, in the resin composition according to the present embodiment, in addition to the compound represented by the general formula (1) which is a resin, (a) a resin other than the compound, (b) a flame retardant, and (c) Other components may also be included.

<(A) Resin>
As the resin (so-called matrix resin) used in the resin composition according to this embodiment, only the compound represented by the general formula (1) may be used, or other resins may be used in combination. An example of the resin used in combination is a thermoplastic resin.

-Thermoplastic resin A conventionally well-known resin is used as said thermoplastic resin. Specifically, polycarbonate resin, polypropylene resin, polyamide resin, polylactic acid resin, aliphatic polyester resin, aromatic polyester resin, polyolefin resin, polyester carbonate resin, polyphenylene ether resin, polyphenylene sulfide resin, polysulfone resin, polyether sulfone Resin, polyarylene resin, polyetherimide resin, polyacetal resin, polyvinyl acetal resin, polyketone resin, polyetherketone resin, polyetheretherketone resin, polyarylketone resin, polyethernitrile resin, liquid crystal resin, polybenzimidazole resin, Selected from the group consisting of polyparabanic acid resins, aromatic alkenyl compounds, methacrylic acid esters, acrylic acid esters and vinyl cyanide compounds Vinyl polymer or copolymer resin obtained by polymerizing or copolymerizing one or more vinyl monomers, diene-aromatic alkenyl compound copolymer resin, vinyl cyanide-diene-aromatic alkenyl compound Copolymer resin, aromatic alkenyl compound-diene-vinyl cyanide-N-phenylmaleimide copolymer resin, vinyl cyanide- (ethylene-diene-propylene (EPDM))-aromatic alkenyl compound copolymer resin, polyolefin , Vinyl chloride resin, chlorinated vinyl chloride resin and the like.

  Of the above, the polycarbonate resin may be used as an alloy resin in which at least one polycarbonate resin and at least one styrenic resin are combined.

  Furthermore, among the thermoplastic resins, biodegradable resins are preferably used. The biodegradable resin may be any resin having biodegradability, such as polylactic acid, polybutylene succinate, polyhydroxybutyrate, polycaprolactone, poly (butylene succinate / adipate), poly (butylene succinate). Acid / carbonate), polyethylene succinate, polyvinyl alcohol, cellulose acetate, starch-modified resin, cellulose-modified resin and the like.

As described above, in the resin composition according to the present embodiment, only the compound represented by the general formula (1) may be used as the resin, or other (a) resin may be used in combination. . When used in combination, the content ratio of the compound represented by the general formula (1) and the resin (a) other than the compound is preferably 80:20 to 20:80 by mass ratio, More preferably, it is 70:30 to 30:70.
Moreover, it is preferable that content of all the resin in the resin composition which concerns on this embodiment is 50 to 95 mass% with respect to the whole quantity of the said resin composition.

<(B) Flame retardant>
The resin composition according to the present embodiment may be configured without adding a flame retardant, or may include a flame retardant. In the resin composition according to the present embodiment, higher flame retardancy is realized when a flame retardant is further added, and excellent mechanical properties are obtained when it is configured without adding a flame retardant.

Examples of the flame retardant include phosphorus, silicone, nitrogen-containing, sulfuric acid, and inorganic hydroxide flame retardants.
Examples of the phosphorus-based flame retardant include condensed phosphate ester, melamine phosphate, ammonium phosphate, and aluminum phosphate. Examples of the silicone-based flame retardant include dimethylsiloxane, nanosilica, and silicone-modified polycarbonate. Examples of the flame retardant include melamine compounds and triazine compounds, examples of the sulfuric acid-based flame retardant include melamine sulfate and guanidine sulfate, and examples of the inorganic hydroxide-based flame retardant include magnesium hydroxide and aluminum hydroxide. It is done.

In addition, as the flame retardant, a synthesized product or a commercially available product may be used.
Examples of commercially available phosphorus-based flame retardants include PX-200 and PX-202 manufactured by Daihachi Chemical, TERRAJU C80 manufactured by Bütenheim, EXOLIT AP422 and EXOLIT OP930 manufactured by Clariant. Examples of commercially available silicone flame retardants include Toray Dow Silicone DC4-7081. ADEKA FP2200 etc. are mentioned as a commercial item of a nitrogen-containing flame retardant. Examples of commercially available sulfuric acid flame retardants include Apinon 901 manufactured by Sanwa Chemical, Pyrroline Sanmelamine manufactured by Shimonoseki Mitsui Chemicals, and FP2100 manufactured by ADEKA. Examples of commercially available inorganic hydroxide flame retardants include MGZ3 and MGZ300 manufactured by Sakai Chemical Industry, and B103ST manufactured by Nippon Light Metal.

  When the flame retardant is added to the resin composition according to this embodiment, the content thereof is preferably 1% by mass or more and 50% by mass or less, and preferably 5% by mass or more and 20% by mass or less based on the total amount of the resin composition. It is more preferable that the amount is not more than mass%.

<(C) Other ingredients>
The resin composition according to this embodiment may further contain other components. The content of the other components in the resin composition is preferably 0% by mass or more and 10% by mass or less, and more preferably 0% by mass or more and 5% by mass or less. Here, “0 mass%” means a form that does not contain other components.
Examples of the other components include compatibilizers, plasticizers, antioxidants, mold release agents, light-proofing agents, weathering agents, colorants, pigments, modifiers, anti-drip agents, antistatic agents, and hydrolysis resistance. Inhibitors, fillers, reinforcing agents (glass fiber, carbon fiber, talc, clay, mica, glass flake, milled glass, glass beads, crystalline silica, alumina, silicon nitride, alumina nitride, boron nitride, etc.) It is done.

-Manufacturing method of resin composition The resin composition according to the present embodiment is manufactured by melt-kneading at least using the compound represented by the general formula (1) according to the present embodiment described above. You may add (a) resin other than this compound, (b) a flame retardant, (c) other components, etc.
Here, a known means can be used as the melt kneading means, and examples thereof include a twin screw extrusion, a Henschel mixer, a Banbury mixer, a single screw extruder, a multi-screw extruder, and a kneader.

≪Resin molded body≫
The resin molding which concerns on this embodiment is characterized by including the compound represented by the said General formula (1) which concerns on this embodiment. For example, it can be obtained by molding the resin composition according to the present embodiment. For example, the resin composition according to the present embodiment is molded by a molding method such as injection molding, extrusion molding, blow molding, heat press molding, calendar molding, coating molding, cast molding, dipping molding, vacuum molding, transfer molding, etc. The resin molding which concerns on embodiment is obtained.

The injection molding may be performed using, for example, a commercially available apparatus such as NEX150 manufactured by Nissei Plastic Industry, NEX70000 manufactured by Nissei Plastic Industry, SE50D manufactured by Toshiba Machine.
At this time, the cylinder temperature is preferably 170 ° C. or higher and 280 ° C. or lower, and more preferably 180 ° C. or higher and 270 ° C. or lower. The mold temperature is preferably 40 ° C. or higher and 110 ° C. or lower, and more preferably 50 ° C. or higher and 110 ° C. or lower.

  The resin molded body according to the present embodiment is suitably used for applications such as electronic / electrical equipment, home appliances, containers, automobile interior materials, and the like. More specifically, housings such as home appliances and electronic / electrical equipment, various parts, wrapping films, storage cases such as CD-ROMs and DVDs, tableware, food trays, beverage bottles, chemical wrap materials, etc. Especially, it is suitable for parts of electronic / electric equipment.

FIG. 1 is an external perspective view of an image forming apparatus, which is an example of a part of an electronic / electric device provided with a molded body according to the present embodiment, as viewed from the front side.
The image forming apparatus 100 in FIG. 1 includes front covers 120 a and 120 b on the front surface of the main body device 110. These front covers 120a and 120b can be freely opened and closed so that an operator can operate the inside of the apparatus. Thus, the operator replenishes the toner when the toner is exhausted, replaces the exhausted process cartridge, or removes the jammed paper when a paper jam occurs in the apparatus. FIG. 1 shows the apparatus with the front covers 120a and 120b opened.

  On the upper surface of the main unit 110, an operation panel 130 on which various conditions relating to image formation such as a paper size and the number of copies are input by an operation of an operator, and a copy glass 132 on which a document to be read is arranged are provided. Yes. In addition, the main body device 110 includes an automatic document conveying device 134 that conveys a document on the copy glass 132 at the top thereof. Further, main device 110 includes an image reading device that scans a document image placed on copy glass 132 and obtains image data representing the document image. Image data obtained by the image reading apparatus is sent to the image forming unit via the control unit. Note that the image reading device and the control unit are housed in a housing 150 that forms part of the main body device 110. The image forming unit is provided in the housing 150 as a detachable process cartridge 142. The process cartridge 142 is attached and detached by turning the operation lever 144.

  A toner container 146 is attached to the casing 150 of the main body device 110, and toner is replenished from the toner supply port 148. The toner stored in the toner storage unit 146 is supplied to the developing device.

  On the other hand, sheet storage cassettes 140a, 140b, and 140c are provided at the lower portion of the main unit 110. In addition, the main body apparatus 110 has a plurality of conveying rollers formed of a pair of rollers arranged in the apparatus, thereby forming a conveying path through which the sheets of the sheet storage cassette are conveyed to the upper image forming unit. ing. The paper in each paper storage cassette is taken out one by one by a paper take-out mechanism disposed near the end of the transport path and sent out to the transport path. Further, a manual paper supply unit 136 is provided on a side surface of the main apparatus 110, and paper is supplied from here.

  The paper on which the image is formed by the image forming unit is sequentially transferred between two fixing rolls that are supported by a casing 152 that forms part of the main body device 110 and is in contact with each other. Paper is discharged to the outside. The main body device 110 is provided with a plurality of paper discharge sections 138 on the side opposite to the side where the paper supply section 136 is provided, and the paper after image formation is discharged to these paper discharge sections.

  In the image forming apparatus 100, for example, the resin molded body according to the present embodiment is used for the front covers 120a and 120b, the exterior of the process cartridge 142, the casing 150, and the casing 152.

  EXAMPLES The present invention will be specifically described below with reference to examples, but the present invention is not limited to these examples. In the following, “part” is based on mass unless otherwise specified.

[Example 1]
(Synthesis of Compound 1)
・ 100 parts of polylactic acid (aliphatic polyester, manufactured by Unitika Ltd., trade name: Terramac TE2000)
・ Methyl benzoate 2 parts (Phenyl carbonates, Wako Pure Chemical Industries, trade name: methyl benzoate)
The above components were put into a biaxial kneading apparatus (Toshiba Machine, TEM58SS), and kneaded for 8 minutes at the cylinder temperature shown in “Kneading conditions” in Table 1 below, thereby compound 1 (weight average molecular weight 58000, n = 580). Pellets were obtained.

(Identification of Compound 1)
The obtained compound 1 was identified with the FT-IR apparatus (The JASCO Corporation make, FTIR-6300). The absorption spectrum is shown in FIG.
Spectral attribution:
-Around 1650 nm: Carbonyl group peak derived from carbonate (partially overlaps with carbonyl of polylactic acid. The size of branches and peaks varies depending on the end-capped structure and amount)
700 nm or more and 900 nm or less: Peak derived from phenyl group of phenyl carbonate. Appears when introduced at the end of a molecular chain.

(Production of resin molding)
The compound 1 pellet was injection-molded with an injection molding machine (Nex150, manufactured by Nissei Plastic Industry Co., Ltd.) at the cylinder temperature and mold temperature shown in “Molding conditions” in Table 1 below, and an ISO universal test piece (thickness 4 mm, width) 10 mm), and UL test pieces (thickness 0.8 mm, 1.6 mm) for V-test in UL-94.

(Evaluation test)
-UL-V test UL-V test was implemented by the method of UL-94 using the UL test piece for said V test. The evaluation criteria are V0, V1, and V2 in descending order of flame retardancy. When V2 is inferior to V2, that is, when the test piece has spread, it is indicated as V-Not. The results are shown in Table 2 below.

-Hydrolysis resistance The ISO universal test piece is left in boiling water at 100 ° C for 10 hours, and the weight average molecular weight before and after being left is measured using GPC (manufactured by Tosoh Corporation, HLC-8320GPC). evaluated.

-Crystallization speed The pellets were pulverized, melted at 200 ° C, held at 110 ° C with rapid cooling, and the saturation time of the crystallization peak was measured and evaluated as the crystallization speed. The results are shown in Table 2.

[Example 2]
・ 100 parts of polyhydroxy-3-butylbutyric acid (aliphatic polyester, manufactured by Monsanto Japan, trade name: Biopol)
・ Methyl benzoate 5 parts (Phenyl carbonates, Wako Pure Chemical Industries, trade name: methyl benzoate)
Compound 2 was prepared by the method described in Example 1 except that the above components were used for the synthesis of the compound, and the cylinder temperature in the kneading condition, the cylinder temperature in the molding condition, and the mold temperature were changed to the temperatures shown in Table 1 below. (Weight average molecular weight 105000, n = 90) was synthesized, a resin molded body was prepared, and an evaluation test was performed.

(Identification of Compound 2)
The obtained compound 2 was identified in the same manner as the compound 1. The absorption spectrum is shown in FIG.

Example 3
・ Polyhydroxy-3-hexylbutyric acid 100 parts (aliphatic polyester, manufactured by Japan ADM, trade name: PHBH)
・ Benzoic acid 5 parts (Phenyl carbonates, Wako Pure Chemical Industries, trade name: Benzoic acid)
Compound 3 was prepared by the method described in Example 1 except that the above components were used for the synthesis of the compound and the cylinder temperature in the kneading conditions, the cylinder temperature in the molding conditions, and the mold temperature were changed to the temperatures shown in Table 1 below. (Weight average molecular weight 89000, n = 69) was synthesized, a resin molded body was produced, and an evaluation test was performed.

(Identification of Compound 3)
The obtained compound 3 was identified in the same manner as the compound 1. The absorption spectrum is shown in FIG.

Example 4
・ 100 parts of polylactic acid (aliphatic polyester, manufactured by Unitika Ltd., trade name: Terramac TE2000)
・ Methyl 3,5-methylbenzoate 10 parts (Phenyl carbonates, manufactured by Wako Pure Chemical Industries, Ltd., trade name: methyl 3,5-methylbenzoate)
Compound 4 was prepared by the method described in Example 1 except that the above components were used for the synthesis of the compound, and the cylinder temperature in the kneading conditions, the cylinder temperature in the molding conditions, and the mold temperature were changed to the temperatures shown in Table 1 below. (Weight average molecular weight 49000, n = 48) was synthesized to produce a resin molded body, and an evaluation test was performed.

(Identification of Compound 4)
The obtained compound 4 was identified in the same manner as the compound 1. The absorption spectrum is shown in FIG.

[Comparative Example 1]
・ 100 parts of polylactic acid (aliphatic polyester, manufactured by Unitika Ltd., trade name: Terramac TE2000)
Additive / carbodiimide (Nisshinbo Co., Ltd., trade name: LA1) 1 part The above components are used for the synthesis of the compound, and the cylinder temperature in the kneading condition, the cylinder temperature in the molding condition and the mold temperature are the temperatures shown in Table 1 below. A compound for Comparative Example 1 (weight average molecular weight 145000) was synthesized by the method described in Example 1 except that the resin molded body was prepared, and an evaluation test was performed.

[Comparative Example 2]
・ 100 parts of polylactic acid (aliphatic polyester, manufactured by Unitika Ltd., trade name: Terramac TE2000)
Additives / carbodiimide (Nisshinbo Co., Ltd., trade name: LA1) 2 parts The above components are used for the synthesis of the compound, and the cylinder temperature in the kneading conditions, the cylinder temperature in the molding conditions, and the mold temperature are those shown in Table 1 below. A compound for Comparative Example 2 (weight average molecular weight 165000) was synthesized by the method described in Example 1 except that the resin molded body was prepared, and an evaluation test was performed.

[Comparative Example 3]
A resin molded body was prepared by the method described in Example 1 except that the pellet of the comparative compound a (weight average molecular weight 56000) shown below was used as the pellet, and an evaluation test was performed.

[Comparative Example 4]
A resin molded body was prepared by the method described in Example 1 except that the pellet of Comparative Compound b (weight average molecular weight 48000) shown below was used as the pellet, and an evaluation test was performed.

[Examples 5 to 52]
Using the compounds 1, 2, 3 or 4 and having the composition shown in Table 3 or 5 below, the cylinder temperature of the kneading conditions, the cylinder temperature of the molding conditions and the mold temperature are shown in Table 4 or Table 6 below. Except having changed to temperature, the pellet was synthesize | combined by the method as described in Example 1, the resin molding was produced, and the evaluation test was done.
However, regarding the evaluation of “hydrolysis resistance”, bending strength (ISO178) was measured and evaluated instead of measurement of the weight average molecular weight.

[Comparative Examples 5 to 22]
Other than using the compound 5, 6, 7 or 8 and changing the cylinder temperature of the kneading conditions, the cylinder temperature of the molding conditions and the mold temperature to the temperatures shown in the following Table 8 in the composition shown in Table 7 below. Synthesize | combined the pellet by the method as described in Example 5, produced the resin molding, and performed the evaluation test.

In addition, what was used as each component of the said Table 3, Table 5, and Table 7 is as follows.
・ Polycarbonate = Panlite L1225Y / Teijin Chemicals ・ Polypropylene = Novatech PPBC6C / Nippon Polypro ・ Polyamide = Rilsan BMNO / Arkema ・ Polylactic acid = Teramac TE2000 / Unitika ・ Polybutylene succinate = Bionore # 1300 / Showa Polymer・ Phosphorus flame retardant = PX200 / Daihachi Chemical Industry ・ Silicone flame retardant = DC4-7081 / Toray Dow Corning ・ Nitrogen-containing flame retardant = FP2200 / ADEKA ・ Sulfuric flame retardant・ Inorganic hydroxide flame retardant = Apinon MGZ-3 / Made by Sakai Chemical Industry

DESCRIPTION OF SYMBOLS 100 Image forming apparatus 110 Main body apparatus 120a, 120b Front cover 136 Paper supply part 138 Paper discharge part 142 Process cartridge 150, 152 Case

Claims (4)

A compound represented by the following general formula (1).


(In General Formula (1), R ¹ is an alkyl group having 1 to 6 carbon atoms, R ^{2 to} R ⁶ are each independently a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, or 6 to 14 carbon atoms. In the following aryl groups, n represents a natural number of 1 or more and 50000 or less.)   The compound of Claim 1 obtained by reaction of aliphatic polyester and benzoic acid esters.   A resin composition comprising the compound according to claim 1.   The resin molding containing the compound of Claim 1 or Claim 2.