JP2009138138A - Fiber reinforced flame-retardant resin composition and its molded article - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a biomass derived fiber reinforced flame-retardant resin composition having mechanical properties and flame retardance at a high level which has not existed in the past. <P>SOLUTION: By adding a flame-retardant comprising at least any one of a sulfonic acid compound, a carboxylic acid compound, and a metal salt thereof and a small amount of at least one phosphate of melamine phosphate, melamine pyrrolate, melamine polyphosphate, and ammonium polyphosphate, high flame retardance is improved among the problems of flammability, low mechanical properties, and the like of a biomass derived resin inherently inferior in mechanical properties and flame retardance, and furthermore, by fiber reinforcement, the mechanical properties are improved. The small amount of the flame-retardant added can provide the biomass derived fiber reinforced flame-retardant resin composition having a high degree of biomass. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  TECHNICAL FIELD The present invention relates to a thermoplastic polyester resin and biomass-derived resin and molded products thereof that need to have both high mechanical properties and flame retardancy, and electrophotographic technology such as copying machines and laser printers, and printing technology. In the field of product fields that use image output equipment using inkjet technology, other electrical appliances, and resin parts such as automobiles, thermoplastic polyester resins and biomass-derived resins that have high levels of mechanical properties and flame resistance The molded article using the containing material can be provided.

The following 1 to 8 are related to the present invention.
1. Japanese Patent Application Laid-Open No. 2003-253118 discloses an invention of a flame retardant polyamide resin composition. This is to provide a polyamide resin composition having both high flame retardancy and mechanical properties in a thin molded article that can be used favorably for applications such as automobile parts, machine parts, and electrical / electronic parts, (A) 30 to 85% by mass of a polyamide resin mainly composed of a hexamethylene adipamide unit, (b) 5 to 50% by mass of an inorganic reinforcing material, and (c) by a reaction between a phosphate compound and a triazine compound. It consists of 100 parts by mass of a component comprising 5 to 40% by mass of the obtained flame retardant and 0.03 to 1 part by mass of a foaming agent having a decomposition temperature equal to or higher than the processing temperature of (d) polyamide resin.

2. JP-A-2004-292755 discloses an invention of a flame retardant polyamide resin composition. This is a flame retardant polyamide that has excellent extrudability and moldability, is extremely thin flame retardant, does not generate highly corrosive hydrogen halide gas during combustion, and has excellent mechanical and electrical properties A resin composition is provided, comprising 30 to 85% by weight of a polyamide resin, 1 to 30% by weight of an adduct formed from melamine and phosphoric acid, a phosphinic acid salt represented by a specific structure and / or a specific structure. It consists of 1 to 30% by weight of the diphosphinic acid salt represented and 5 to 40% by weight of the inorganic filler.

3. Japanese Patent Application Laid-Open No. 2005-340442 discloses an invention of a composition using a plant resource blended with a flame retardant as a raw material. This provides a composition for adding flame retardancy to a plastic resin made from plant friendly to the global environment, and also provides a method for realizing the composition without changing the conventional production method. It is possible to add flame retardancy by blending with a flame retardant. According to the present invention, the flame retardant blending is performed simultaneously with the blending of the other resin and the colorant at the time of resin kneading, so that an increase in the process accompanying the flame retardant blending does not occur and the kneading is performed at the time of resin dissolution before molding. Things are also possible.

4). The invention of a kenaf fiber reinforced resin composition is described in International Publication No. 04/063282. An object of the present invention is to provide a fiber-reinforced resin composition suitable for the production of molded articles such as electrical and electronic equipment products, which is a biodegradable resin composition containing kenaf fibers, The said subject is solved by making content of a fiber into 10-50 mass%. The biodegradable resin is preferably a crystalline thermoplastic resin, particularly preferably a polylactic acid resin, and the average fiber length of kenaf fibers (number average fiber length of fibers excluding crushed pieces) Is preferably 100 μm to 20 mm, more preferably the kenaf fiber includes a kenaf fiber having a fiber length of 300 μm to 20 mm, and the kenaf fiber is preferably a fiber prepared from a bast portion of kenaf. In the publication.

5). Japanese Patent Application Laid-Open No. 2007-056247 describes an invention of a flame retardant resin composition. This is to provide a flame-retardant resin composition excellent in appearance and surface impact of a molded article having no pearly luster, and a molded article comprising the same. (A) 5 to 95% by weight of polylactic acid resin, (B) aromatic Polymer compound containing (C) acrylic resin or styrene resin unit by grafting to 5 to 95% by weight of polycarbonate resin and 100 parts by weight of (A) polylactic acid resin and (B) aromatic polycarbonate. 1 to 50 parts by weight and (D) 0.1 to 50 parts by weight of a flame retardant are blended.

6). Japanese Patent Application Laid-Open No. 2006-111858 describes the invention of a resin composition and a molded product comprising the same. The present invention provides a resin composition having an excellent impact strength and a white appearance without pearl luster, a resin composition exhibiting a high degree of flame retardancy, and a molded product comprising the resin composition. 10 to 75 parts by weight of one or more resins selected from lactic acid resin, (B) cellulose ester, (C) 25 to 90 parts by weight of aromatic polycarbonate resin, (D) B) A resin composition comprising 1 to 50 parts by weight based on 100 parts by weight of the total amount of one or more resins selected from cellulose esters and (C) an aromatic polycarbonate resin, and (E) a flame retardant The resin composition obtained by blending (F) the resin composition obtained by blending a fluorine compound, or (G) the epoxy compound.

7. Japanese Patent Application Laid-Open No. 2006-181776 describes the invention of a molding fiber reinforced flame retardant resin mixture and a molded article. The present invention provides a molding fiber reinforced flame retardant resin mixture and an injection molded product having excellent mechanical properties, flame retardancy, and fluidity during injection molding, and is substantially the same length as (A) pellets. Long fiber reinforced thermoplastic resin pellets containing reinforced fibers, (B) short fiber reinforced thermoplastic resin pellets containing reinforced fibers having a weight average fiber length of 0.1 to 0.5 mm, and (C) a flame retardant. .

8). The invention of the flame retardant resin composition is described in International Publication No. 07/010786. This is to provide a flame retardant resin composition that does not contain a halogen element and phosphorus element, is safe without adversely affecting the environment and the human body, and excellent in flame retardancy, and a thermoplastic polyester resin, It contains at least one of an organic sulfonic acid compound, an organic carboxylic acid compound, and a metal salt thereof having a content of 0.0002 to 0.8 part by mass with respect to 100 parts by mass of the thermoplastic resin.

[Problems of the prior art]
Conventionally, high flame retardancy is one of the important criteria for parts used in image output devices using electrophotographic technology such as copying machines and laser printers, printing technology or inkjet technology. All products that have a mechanism that generates heat, such as a fixing roller, and exterior parts are required to have a certain level of flame retardancy. Conventionally, there are the following three types of methods for imparting flame retardancy to a flammable resin.

First, by adding a halogen-based compound, the combustion rate is reduced by, for example, making the halogen-based compound burn as a negative catalyst for the oxidation reaction.
Second, by adding a silicone compound or phosphoric acid compound, the silicone compound is bleed on the surface of the resin during combustion, or the phosphoric acid compound is caused to undergo a dehydration reaction in the resin. A technique to stop combustion by purifying char on the surface and forming a heat insulation film.
Third, metal hydroxides such as magnesium hydroxide and aluminum hydroxide are added, and the whole resin is cooled by the endothermic reaction when these compounds differentiate by combustion of the resin or the latent heat of evaporation of purified water. A technique to stop combustion by, for example.
In recent years, an intumescent flame retardant has also been proposed that forms a foam expansion layer during combustion to block the radiant heat of combustion and further suppress the diffusion of polymer decomposition gas to make the polymer flame retardant. Are known. However, with the above method alone, the desired flame retardant effect cannot be obtained unless a large amount of flame retardant is added to the resin.

  In general, as a technique for improving the mechanical properties of a resin, there is a technique in which fibers are added to strengthen and intertwined with fibers present in a matrix resin, one example of which is fiber made of glass fiber, ceramic fiber, cellulose fiber, etc. It is a strengthening technique. However, in this case, in order to impart flame retardancy at the same time, it is necessary to add a large amount of flame retardant after using the flame retardant fiber in the fiber itself.

  Biomass-derived resins are flammable and have low mechanical properties, so that it is very difficult to expand into fields that require flame retardancy and mechanical properties. However, in order to reduce the environmental burden, it is essential to put the biomass-derived resin into practical use in fields where flame retardancy and mechanical properties are required.

  Attempts to improve the mechanical properties of biomass-derived resins have been actively pursued, and for this purpose, techniques such as alloying with petroleum-derived resins, fiber reinforcement, and crystallization have been adopted. Crystallization improves the heat resistance, but there is little improvement in physical properties such as impact resistance, and there is a problem that the degree of biomass is reduced by alloying with petroleum-derived resin or fiber reinforcement. On the other hand, in order to improve the flame retardancy, a large amount of flame retardants, for example, inorganic flame retardants such as hydrated metal compounds and metal oxides, halogen flame retardants typified by bromine, red phosphorus, phosphate esters It is necessary to add a phosphorus-based flame retardant such as other silicone-based flame retardants, and there is a problem that the degree of biomass is lowered. Furthermore, in order to obtain mechanical properties and flame retardancy at the same time, for example, when an oil-derived resin and a biomass-derived resin are alloyed, a large amount of flame retardant must be added to both the petroleum-derived resin and the biomass-derived resin. The same applies to fiber reinforcement. In a resin composition having a high degree of biomass, it can be said that it is very difficult to improve both flame retardancy and mechanical properties at present.

  The thing of Unexamined-Japanese-Patent No. 2003-253118 regarding a flame-retardant polyamide resin composition is specific to the system which combined the polyamide resin, the inorganic reinforcement material, and the flame retardant obtained by reaction of a phosphorus compound and a triazine compound. The flame retardant is improved by blending the foaming agent. However, the addition amount of the flame retardant reported in Examples that achieved V-0 in the UL94 standard is a large amount of 10% by mass or more, and the mechanical strength depends on the glass fiber.

  JP 2004-292755 A relates to a flame retardant polyamide resin composition, in which a specific phosphinic acid salt is added in a system in which an inorganic reinforcing material, a phosphorus flame retardant and a polyamide resin are combined. Improves physical properties. However, the amount of the flame retardant reported in the examples that achieved V-0 in the UL 94 standard is not only a large amount of 20% by weight or more in total of the phosphorus-based flame retardant and the phosphinate, but also mechanical strength. Depends on glass fiber.

The thing of Unexamined-Japanese-Patent No. 2005-340442 regarding the composition which adds a flame retardance to the plastics which used the plant resource as a raw material is just diverting the conventional manufacturing method used with the resin derived from petroleum as it is, and a manufacturing method There is no innovative novelty.
International Publication No. 04/063282 relating to a kenaf fiber reinforced resin composition is a biodegradable resin composition, in particular, a kenaf fiber reinforced resin composition containing kenaf fibers in polylactic acid. As a surface treatment for improving the flame retardancy of kenaf fiber, a conventional flame retardant formulation of wood or paper is used, but the examples are not specific, and no description of the flame retardant effect is found.

  Japanese Unexamined Patent Publication No. 2007-056247 relating to a flame retardant resin composition and a molded article comprising the flame retardant resin composition cannot satisfy the appearance excellent in impact strength and whiteness only with a biomass-derived resin, and therefore, polycarbonate is alloyed with respect to a biomass-derived resin. However, the impact strength and whiteness depend on the characteristics of the polycarbonate derived from petroleum. However, it is necessary to add 15% by weight or more of a phosphorus flame retardant.

  JP-A-2006-111858 which uses biomass-derived resin and polycarbonate as the main raw materials cannot satisfy the appearance excellent in impact strength and whiteness with only biomass-derived resin. It is a mixture, and its impact strength and whiteness depend on the properties of the petroleum-derived polycarbonate. However, since it depends on the mechanical properties of petroleum-derived resins, it must contain at least 25% by weight of polycarbonate, and it is necessary to add at least 15% by weight of a phosphorus flame retardant. It is impossible to further improve the degree of biomass.

  JP 2006-181776 A relates to a fiber-reinforced flame retardant resin mixture. In a petroleum-derived thermoplastic resin composition, long fibers having substantially the same length as pellets are used, and red phosphorus and phosphate esters are used as flame retardants. Is used to provide a molding fiber reinforced flame retardant resin mixture and an injection molded product excellent in mechanical properties, flame retardancy, and fluidity during injection molding. can not see. Further, it is necessary to add 25 parts by weight or more of the flame retardant to 100 parts by weight of the long fibers.

International Publication No. 07/010786 provides a flame retardant resin composition which does not contain a halogen element or phosphorus element, and which is safe and does not adversely affect the environment or the human body, and has excellent flame retardancy. Flame retardant resin containing a resin and an organic sulfonic acid compound, an organic carboxylic acid compound, and a metal salt thereof having a content of 0.0002 to 0.8 part by mass with respect to 100 parts by mass of the thermoplastic resin A composition (petroleum-derived resin) is provided.
JP 2003-253118 A JP 2004-292755 A JP 2005-340442 A International Publication No. 04/063282 JP 2007-056247 A JP 2006-111858 A JP 2006-181776 A International Publication No. 07/010786

  Accordingly, an object of the present invention is to provide a biomass-derived fiber-reinforced flame-retardant resin composition having mechanical properties and flame retardancy at a high level.

  The present invention relates to a biomass-derived resin which is originally inferior in mechanical properties and flame retardancy, a flame retardant containing at least one of a sulfonic acid compound, a carboxylic acid compound and a metal salt thereof, melamine phosphate, melamine pyrophosphate, polyphosphoric acid Flame retardancy is improved by adding a small amount of a phosphate containing at least one of melamine and ammonium polyphosphate, and mechanical properties are improved by fiber reinforcement. It is possible to produce a biomass-derived fiber-reinforced flame-retardant resin composition having a low degree of biomass and a high degree of biomass.

[Invention of Claim 1]
The invention of claim 1 is a fiber-reinforced flame retardant resin composition containing the following (A), (B), (C), (D).
(A) thermoplastic polyester resin,
(B) a flame retardant,
(C) additive,
(D) A thermoplastic polyester fiber having a melting point higher than the melting point of (A) and lower than the decomposition start temperature of (A).
However, as the thermoplastic polyester resin of the component (A), an aliphatic polyester resin derived from a biomass material is used as at least a part of the raw material. The flame retardant of the component (B) contains at least one of an organic sulfonic acid compound, an organic carboxylic acid compound, and a metal salt thereof. The component (C) additive is a phosphate containing at least one of melamine phosphate, melamine pyrophosphate, melamine polyphosphate, and ammonium polyphosphate.

[Invention of Claim 2]
According to a second aspect of the present invention, the thermoplastic polyester resin of the component (A) contains at least one selected from a polylactic acid resin or a microorganism-produced resin (polyhydroxyalkanoic acid). Fiber reinforced flame retardant resin composition.

[Invention of claim 3]
According to a third aspect of the present invention, the flame retardant of the component (B) comprises 100 parts by weight of the thermoplastic polyester resin of the component (A) and the thermoplastic polyester fiber of the component (D). The fiber-reinforced flame-retardant resin composition according to claim 1 or claim 2, wherein 0.001 to 1 part by weight is contained.

[Invention of claim 4]
According to a fourth aspect of the present invention, the additive of the component (C) is a phosphate containing at least one of melamine phosphate, melamine pyrophosphate, melamine polyphosphate, and ammonium polyphosphate. The fiber-reinforced flame-retardant resin composition according to claim 3.

[Invention of Claim 5]
According to a fifth aspect of the present invention, the melting point of the thermoplastic polyester fiber of the component (D) is 40 to 160 ° C. higher than the melting point of the thermoplastic polyester resin of the component (A). 4. Fiber reinforced flame retardant resin composition.

[Invention of claim 6]
The fiber reinforced flame retardant resin composition according to any one of claims 1 to 5, wherein the thermoplastic polyester fiber of the constituent element (D) has a fiber length of 5 µm to 10 mm.

[Invention of Claim 7]
The invention of claim 7 is the thermoplastic polyester resin of the component (A), the flame retardant of the component (B), and the melting point of the additive of the component (C). A method for producing a fiber-reinforced flame-retardant resin composition containing thermoplastic polyester fibers that is higher than the melting point of the thermoplastic polyester fiber and lower than the decomposition start temperature of the thermoplastic polyester resin of the component (A).

  In invention of Claim 7, the flame retardant of the said component (B) is 0.001 weight part-1 weight part or the said component (C) to 100 weight part of the thermoplastic polyester fiber of the said component (D). ) 0.1-5 parts by weight of the additive or 0.001 part by weight to 1 part by weight of the flame retardant of the component (B) and 0.1-5 parts by weight of the additive of the component (C) Of the component (B) when the thermoplastic polyester resin of the component (A) is 100 parts by weight in combination with the thermoplastic polyester resin of the component (A). 0.001 to 1 part by weight of the flame retardant, 0.1 to 5 parts by weight of the additive of the component (C), or 0.001 to 1 part of the flame retardant of the component (B) Parts by weight and additives for the component (C) .1～5 and a step of incorporating parts simultaneously.

  However, the thermoplastic polyester resin of the component (A) is one in which an aliphatic polyester resin containing a biomass material is applied as at least a part of the raw material, and the flame retardant of the component (B) is: It contains at least one of an organic sulfonic acid compound, an organic carboxylic acid compound, and a metal salt thereof, and the additive of the component (C) is melamine phosphate, melamine pyrophosphate, melamine polyphosphate And a phosphate containing at least one of ammonium polyphosphate.

[Invention of claim 8]
The invention of claim 8 is a fiber reinforced flame retardant resin composition molded product molded using the fiber reinforced flame retardant resin composition of any one of claims 1 to 6, wherein the component ( Fiber reinforcement difficulty obtained by processing by an injection molding method in which the weight ratio of the thermoplastic polyester fiber of D) and the thermoplastic polyester resin of the component (A) is in the range of 5:95 to 50:50 Flammable resin composition molded product.

[Operation and effect of the invention of claim 1]
The thermoplastic polyester resin of the component (A), which is a material that is flammable and has low mechanical properties, has flame resistance due to the flame retardant of the component (B) and the additive of the component (C). Further, the mechanical properties are improved by the thermoplastic polyester fiber of the component (D).

[Operation and effect of invention of claim 2]
The thermoplastic polyester resin of the constituent element (A) of claim 1 contains at least one selected from polylactic acid resin or microorganism-produced resin (polyhydroxyalkanoic acid), so that it is excellent in environmental conservation and practically used. It becomes a fiber reinforced flame retardant resin composition which also has sufficient mechanical strength and flame retardancy.

[Effects of the invention of claim 3]
By specifying the constituent material of the flame retardant of the component (B), a high flame retardant effect is obtained by adding a very small amount of the flame retardant of the component (B) and the additive of the component (C). Is possible.

[Effects of invention of claim 4]
By specifying the additive of the component (C), it is possible to obtain a high flame retardant effect by adding a very small amount of the flame retardant of the component (B) and the additive of (C).

[Effects of invention of claim 5]
By specifying the melting point of the thermoplastic polyester fiber of the component (D), the fiber in the component is not melted during the molding process, and is maintained outside the shape, and the mechanical properties are improved.

[Effects of Invention of Claim 6]
By specifying the numerical range of the fiber length of the thermoplastic polyester fiber of the component (D), both high mechanical properties and flame retardancy can be improved.

[Effects of the invention of claim 7]
The flame retardant of component (B), the additive of component (C), or the flame retardant of component (B) and the additive of component (C) to the thermoplastic polyester fiber of component (D) By using a fiber in which both of these are premixed, the final resin composition can be made more flame retardant more reliably than in the case where the fibers are not premixed. Thereby, the flame retardant content in the resin composition can be kept low, the moldability is excellent, and the resin composition is excellent in both high mechanical properties and flame retardancy.

[Effects of Invention of Claim 8]
The flame retardant is high in flame retardancy because the component ratio of the thermoplastic polyester fiber of the component (D) and the thermoplastic polyester resin of the component (A) is in the range of 5:95 to 50:50. A fiber-reinforced flame-retardant resin composition molded product that achieves both good mechanical properties and mechanical properties can be obtained by injection molding.

  In addition, when the weight ratio of the thermoplastic polyester fiber of the component (D) is less than the above range, it has been confirmed that practically sufficient mechanical properties cannot be obtained, while more than 50 parts by weight. If it increases, the problem that the contribution to the environmental conservation effect by biomass-derived resin will become too small will arise.

  Below, the evaluation item and evaluation method of the molded article of the fiber reinforced flame retardant composition obtained by the Example and the comparative example are shown.

1. Production of Thermoplastic Polyester Resin Fiber In the examples, polyethylene terephthalate fiber was used as the thermoplastic polyester fiber of the component (D).
After the polyethylene terephthalate pellets were dried at 50 ° C. for 12 hours using a shelf type hot air dryer, 0.1 parts by weight of the flame retardant of the above component (B) was added to 100 parts by weight of the polyethylene terephthalate pellets. The additive of the component (C) was dry blended at a ratio of 1 part by weight. This was drawn and spun into a polyethylene terephthalate filament having a diameter of 200 μm using a high-temperature melt spinning apparatus, and then chopped with a cutter to a fiber length of about 5 mm.
As described above, the fibrous flame retardant-added thermoplastic polyester obtained by previously adding the flame retardant of the component (B) and the additive of the component (C) to the fiber of the component (D) is added to the component (D1). ).
In addition, as a flame retardant for the component (B), camphorsulfonic acid manufactured by Kanto Chemical Co., Ltd., as an additive for the component (C), melamine polyphosphate (MPP-B) manufactured by Sanwa Chemical Co., Ltd., Mitsui PETJ120 manufactured by Mitsui Chemicals, Inc. was used as the polyethylene terephthalate of component (D).

2. Production of Fiber Reinforced Resin Composition The flame retardant-added thermoplastic polyester fiber of the component (D1) is mixed with the polylactic acid resin of the component (A). At this time, the polylactic acid resin of the component (A) and the thermoplastic polyester fiber of the component (D) in these mixtures were mixed at a weight ratio of 80:20, and this was uniaxially kneaded and extruded. It was melt-kneaded at a temperature of 180 ° C. using a machine to produce a molding pellet of about 3 mm square.
In addition, the Lacia H-100J by Mitsui Chemicals, Inc. was used for the polylactic acid resin of the component (A).

3. Preparation of UL94 Vertical Combustion Specimen The pellets of the fiber-reinforced resin composition thus prepared were dried at 50 ° C. for 12 hours using a shelf type hot air dryer, The component (B) flame retardant is dry blended at a ratio of 0.1 part by weight and the additive of the constituent element (C) is 1 part by weight with respect to 100 parts by weight of lactic acid resin, and the clamping force is 50 tons. A strip test piece for UL94 vertical combustion test was prepared using the electric injection molding machine with a mold temperature of 40 ° C, a cylinder temperature of 180 ° C, an injection speed of 20 mm / s, an injection pressure of 100 MPa, and a cooling time of 60 sec. did. The size of the produced strip test piece was 125 mm in length, 13 mm in width, and 1.6 mm in thickness.
In addition, as a flame retardant for the component (B), camphor sulfonic acid manufactured by Kanto Chemical Co., Inc., and as an additive for the component (C), melamine polyphosphate (MPP-B) manufactured by Sanwa Chemical Co., Ltd. Was used.

4). UL94 Vertical Combustion Test After the aged test piece is aged at 50 ° C. for 72 hours, it is cooled in a desiccator with a humidity of 20% for 3 hours, and five test pieces are set as one set, and a vertical combustion test conforming to the UL94 standard is performed. went. The test method is to clamp the upper end of the test piece, hold it vertically, place absorbent cotton (0.8 g or less, 50 mm square) 300 ± 10 mm below the lower end of the test piece, and the fall melt falls on the absorbent cotton Confirmed to do. The first flame contact with the burner from the lower end of the test piece is performed for 10 ± 1 seconds, the burner is separated from the sample at a speed of about 300 mm / second, and immediately after the combustion has disappeared, the burner is returned to the lower end of the sample. Flame contact was performed for 10 ± 1 seconds. A set of five test pieces was subjected to flame contact 10 times in total, and the burning time of the test pieces was recorded. The combustion time is the combustion continuation time after flame removal, where the first combustion time is t1, the second combustion time is t2, and the second post-combustion fire type continuation time is t3.

5). Determination method of UL94 vertical combustion test The determination method of the vertical combustion test based on the UL94 standard is as follows.
(1) If the continuation of combustion of each test piece after flame separation is t1 or t2: 10 seconds or less, V-0, and 30 seconds or less, V-1 or V-2
(2) All combustion durations t1 + t2 of five test pieces: V-0 if 50 seconds or less, V-1 or V-2 if 250 seconds or less
(3) Total combustion duration after the second flame contact and fire type duration t2 + t3: V-0 if 30 seconds or less, V-1 or V-2 if 60 seconds or less
(4) Absence of burning up to the clamp (5) Ignition of absorbent cotton by burning or falling objects: V-0 or V-1 if there is no ignition, V-2 if there is ignition
Those satisfying all the conditions of V-0, V-1, and V-2 of (1) to (5) are determined.

6). Preparation of test piece for Izod impact test After the pellets of the fiber-reinforced resin composition thus prepared were dried at 50 ° C. for 12 hours using a shelf-type hot air dryer, the pellets of the component (A) were The component (B) flame retardant is dry blended at a ratio of 0.1 parts by weight and the component (C) additive is dry blended at a ratio of 1 part by weight per 100 parts by weight of the thermoplastic polyester resin fiber, and the mold is clamped. Using an electric injection molding machine with a force of 50 tons, a test piece for Izod impact test was prepared with a mold temperature of 40 ° C., a cylinder temperature of 180 ° C., an injection speed of 20 mm / s, an injection pressure of 100 MPa, and a cooling time of 60 sec. did. The produced test piece is No. 2 test piece, length 64 mm, width 12.7 mm, thickness 12.7 mm, and No. 2 A with A cutout.
In addition, as a flame retardant for the component (B), camphor sulfonic acid manufactured by Kanto Chemical Co., Inc., and as an additive for the component (C), melamine polyphosphate (MPP-B) manufactured by Sanwa Chemical Co., Ltd. Was used.
7. Izod impact test An Izod impact test based on JIS K 7110 was performed.

1. Production of Thermoplastic Polyester Resin Fiber Polyethylene terephthalate fiber was used as the thermoplastic polyester fiber of component (D).
In the same manner as in Example 1, the polyethylene terephthalate pellets were subjected to a drying process at 50 ° C. for 12 hours using a shelf-type hot air dryer. After 100 parts by weight of the polyethylene terephthalate pellets, the flame retardant of the component (B) is dry blended at a ratio of 0.1 part by weight, stretched and spun into a φ200 μm polyethylene terephthalate filament using a high-temperature melt spinning apparatus, and then the fiber length The component (D) cut with a cutter to about 5 mm was used as the component (D2).
In addition, as the flame retardant for the component (B), camphorsulfonic acid manufactured by Kanto Chemical Co., Ltd. was used, and as the polyethylene terephthalate of the component (D), Mitsui PETJ120 manufactured by Mitsui Chemicals, Inc. was used.

2. Production of Fiber Reinforced Resin Composition The thermoplastic polyester fiber of the component (D2) is mixed with the polylactic acid resin of the component (A).
At this time, the polylactic acid resin of the component (A): the polyethylene terephthalate of the component (D) in these mixtures were mixed at a weight ratio of 80:20, and this was mixed with a single-screw kneading extruder. The mixture was melt-kneaded at a temperature of 180 ° C. to produce a molding pellet of about 3 mm square.
The flame retardant of the component (B) is added to the pellets for molding at a ratio of 0.1 part by weight with respect to 100 parts by weight of the polylactic acid resin of the component (A), and the polylactic acid of the component (A) The additive of the component (C) was dry blended at a ratio of 1 part by weight with respect to 100 parts by weight of the thermoplastic polyester fiber of the resin + component (D). Thereafter, in the same manner as described above, a vertical combustion test piece and an Izod impact test specimen were prepared, and a UL94 vertical combustion test and an Izod impact test were performed.
In addition, the polylactic acid resin of the component (A) is Lacia H-100J manufactured by Mitsui Chemicals, and the flame retardant of the component (B) is camphor sulfonic acid manufactured by Kanto Chemical Co., Ltd. As an additive of (C), melamine polyphosphate (MPP-B) manufactured by Sanwa Chemical Co., Ltd. was used.

1. Production of Thermoplastic Polyester Resin Fiber Polyethylene terephthalate fiber was used as the thermoplastic polyester resin fiber of component (D).
After the polyethylene terephthalate pellets were dried at 50 ° C. for 12 hours using a shelf type hot air dryer, the additive of component (C) was dried at a ratio of 1 part by weight with respect to 100 parts by weight of the polyethylene terephthalate pellets. After blending and drawing and spinning into a φ200 μm polyethylene terephthalate filament using a high-temperature melt spinning apparatus, the fiber length was cut to about 5 mm with a cutter. The component (D) prepared by adding an additive in advance was used as the component (D3).
In addition, as an additive of the component (C), melamine polyphosphate (MPP-B) manufactured by Sanwa Chemical Co., Ltd., and as a polyethylene terephthalate of the component (D), Mitsui PETJ120 manufactured by Mitsui Chemicals, Inc. Using.

2. Preparation of Fiber Reinforced Resin Composition The additive-added thermoplastic polyester fiber of the component (D3) is mixed with the polylactic acid resin of the component (A). In the same manner as in Example 5, the polylactic acid resin of component (A) and the additive of component (C) were mixed at a weight ratio of 80:20, and this was mixed at 180 ° C. using a single-screw kneading extruder. The mixture was melt-kneaded at a temperature of about 3 mm square to produce molding pellets. Containing 0.1 parts by weight of the flame retardant of the component (B) with respect to 100 parts by weight of the additive of the polylactic acid resin of the component (A) and the component (C) with respect to this molding pellet The additive of the constituent element (C) was dry blended at a ratio of 1 part by weight to 100 parts by weight of the polylactic acid resin of the element (A). Thereafter, in the same manner as described above, a vertical combustion test piece and an Izod impact test specimen were prepared, and a UL94 vertical combustion test and an Izod impact test were performed.
In addition, the polylactic acid resin of the component (A) is Lacia H-100J manufactured by Mitsui Chemicals, and the flame retardant of the component (B) is camphor sulfonic acid manufactured by Kanto Chemical Co., Ltd. As an additive of (C), melamine polyphosphate (MPP-B) manufactured by Sanwa Chemical Co., Ltd. was used.

1. Production of Thermoplastic Polyester Resin Fiber Polyethylene terephthalate fiber was used as the thermoplastic polyester resin fiber of component (D).
The polyethylene terephthalate pellets were dried at 50 ° C. for 12 hours using a shelf-type hot air dryer, then drawn and spun into a φ200 μm polyethylene terephthalate filament using a high-temperature melt spinning apparatus, and then a fiber length of about 5 mm with a cutter. Disconnected.
The thermoplastic polyester resin fiber produced as described above was used as the constituent element (D4).
In addition, Mitsui Chemicals, Inc. Mitsui PETJ120 was used for the polyethylene terephthalate.

2. Fabrication of fiber reinforced resin composition
The thermoplastic polyester fiber of the component (D4) is mixed with the polylactic acid resin of the component (A). At this time, the polylactic acid resin of the component (A) and the thermoplastic polyester fiber of the component (D) in these mixtures were mixed at a weight ratio of 80:20, and this was uniaxially kneaded and extruded. It was melt-kneaded at a temperature of 180 ° C. using a machine to produce a molding pellet of about 3 mm square. With respect to 100 parts by weight of the polylactic acid resin of the component (A) and the thermoplastic polyester fiber of the component (D), 0.1 parts by weight of the flame retardant of the component (B) is added to the pellets for molding. In proportion, the additive of component (C) was dry blended in a proportion of 1 part by weight. Thereafter, in the same manner as described above, a vertical combustion test piece and an Izod impact test specimen were prepared, and a UL94 vertical combustion test and an Izod impact test were performed.
In addition, the polylactic acid resin of the component (A) is Lacia H-100J manufactured by Mitsui Chemicals, and the flame retardant of the component (B) is camphor sulfonic acid manufactured by Kanto Chemical Co., Ltd. As an additive of (C), melamine polyphosphate (MPP-B) manufactured by Sanwa Chemical Co., Ltd. was used.

1. Production of Fiber Reinforced Resin Composition The thermoplastic polyester fiber of the component (D4) is mixed with the polylactic acid resin of the component (A). At this time, the polylactic acid resin of the component (A) and the thermoplastic polyester fiber of the component (D) in these mixtures were mixed at a weight ratio of 80:20, and this was uniaxially kneaded and extruded. It was melt-kneaded at a temperature of 180 ° C. using a machine to produce a molding pellet of about 3 mm square. With respect to 100 parts by weight of the polylactic acid resin of the component (A) and the thermoplastic polyester fiber of the component (D), 0.1 parts by weight of the flame retardant of the component (B) is added to the pellets for molding. The additive of component (C) was dry blended at a ratio of 0.1 part by weight. Thereafter, in the same manner as described above, a vertical combustion test piece and an Izod impact test specimen were prepared, and a UL94 vertical combustion test and an Izod impact test were performed.
In addition, the polylactic acid resin of the component (A) is Lacia H-100J manufactured by Mitsui Chemicals, and the flame retardant of the component (B) is camphor sulfonic acid manufactured by Kanto Chemical Co., Ltd. As an additive of (C), melamine polyphosphate (MPP-B) manufactured by Sanwa Chemical Co., Ltd. was used.

1. Production of Fiber Reinforced Resin Composition The thermoplastic polyester fiber of the component (D4) is mixed with the polylactic acid resin of the component (A). At this time, in the mixture, the polylactic acid resin of the component (A): the thermoplastic polyester fiber of the component (D) is mixed at a weight ratio of 80:20, and the component (A The additive of the component (C) was mixed at a ratio of 5 parts by weight with respect to 100 parts by weight of the polylactic acid resin of the component + the thermoplastic polyester fiber of the component (D). This was melt kneaded at a temperature of 180 ° C. using a single-screw kneading extruder to produce a molding pellet of about 3 mm square. With respect to 100 parts by weight of the polylactic acid resin of the component (A) and the thermoplastic polyester fiber of the component (D), 0.1 parts by weight of the flame retardant of the component (B) is added to the pellets for molding. Dry blended in proportions. Thereafter, in the same manner as described above, a vertical combustion test piece and an Izod impact test specimen were prepared, and a UL94 vertical combustion test and an Izod impact test were performed.
In addition, the polylactic acid resin of the component (A) is Lacia H-100J manufactured by Mitsui Chemicals, and the flame retardant of the component (B) is camphor sulfonic acid manufactured by Kanto Chemical Co., Ltd. As an additive of (C), melamine polyphosphate (MPP-B) manufactured by Sanwa Chemical Co., Ltd. was used.

因みに、表１における実施例１のＡ（８０）は、構成要素（Ａ）の熱可塑性ポリエステ
ル樹脂が８０重量部であることを表し、Ｂ（０．０８）は、構成要素（Ｂ）の難燃剤が０．０８重量部であることを表し、Ｂ（０．０２）は、構成要素（Ｂ）の難燃剤が０．０２重量部であることを表し、Ｃ（０．８）は、構成要素（Ｃ）の添加剤が０．８重量部であることを表し、Ｃ（０．２）は、構成要素（Ｃ）の添加剤が０．２重量部であることを表し、Ｄ（２０）は、構成要素（Ｄ）の熱可塑性ポリエステル繊維が２０重量部であることを表しており、実施例２から実施例６までも同様である。
また、以下に示す表２から表５においても同様の表記をしている。 Table 1 below summarizes the configurations and test results of Examples 1 to 6 described above.

Incidentally, A (80) of Example 1 in Table 1 represents that the thermoplastic polyester resin of the component (A) is 80 parts by weight, and B (0.08) represents that of the component (B). The flame retardant is 0.08 parts by weight, B (0.02) represents that the flame retardant of the component (B) is 0.02 parts by weight, and C (0.8) is The component (C) additive represents 0.8 parts by weight, C (0.2) represents the component (C) additive 0.2 parts by weight, and D ( 20) represents that the thermoplastic polyester fiber of the component (D) is 20 parts by weight, and the same applies to Example 2 to Example 6.
The same notation is used in Tables 2 to 5 below.

1. Production of Fiber Reinforced Resin Composition The thermoplastic polyester fiber of the component (D4) is mixed with the polylactic acid resin of the component (A). At this time, the polylactic acid resin of the component (A) and the thermoplastic polyester fiber of the component (D) in these mixtures were mixed at a weight ratio of 80:20, and this was uniaxially kneaded and extruded. It was melt-kneaded at a temperature of 180 ° C. using a machine to produce a molding pellet of about 3 mm square. With respect to 100 parts by weight of the polylactic acid resin of the component (A) and the thermoplastic polyester fiber of the component (D), 0.01% by weight of the flame retardant of the component (B) is added to the pellets for molding. In proportion, the additive of component (C) was dry blended in a proportion of 1 part by weight. Thereafter, in the same manner as described above, a vertical combustion test piece and an Izod impact test specimen were prepared, and a UL94 vertical combustion test and an Izod impact test were performed.
In addition, the polylactic acid resin of the component (A) is Lacia H-100J manufactured by Mitsui Chemicals, and the flame retardant of the component (B) is camphor sulfonic acid manufactured by Kanto Chemical Co., Ltd. As an additive of (C), melamine polyphosphate (MPP-B) manufactured by Sanwa Chemical Co., Ltd. was used.

1. Production of Fiber Reinforced Resin Composition The thermoplastic polyester fiber of the component (D4) is mixed with the polylactic acid resin of the component (A). At this time, the polylactic acid resin of the component (A) and the thermoplastic polyester fiber of the component (D) in these mixtures were mixed at a weight ratio of 80:20, and this was uniaxially kneaded and extruded. It was melt-kneaded at a temperature of 180 ° C. using a machine to produce a molding pellet of about 3 mm square. With respect to this molding pellet, the flame retardant of the component (B) at a ratio of 1 part by weight with respect to 100 parts by weight of the polylactic acid resin of the component (A) and the thermoplastic polyester fiber of the component (D). The additive of component (C) was dry blended at a ratio of 1 part by weight. Thereafter, in the same manner as described above, a vertical combustion test piece and an Izod impact test specimen were prepared, and a UL94 vertical combustion test and an Izod impact test were performed.
In addition, the polylactic acid resin of the component (A) is Lacia H-100J manufactured by Mitsui Chemicals, and the flame retardant of the component (B) is camphor sulfonic acid manufactured by Kanto Chemical Co., Ltd. As an additive of (C), melamine polyphosphate (MPP-B) manufactured by Sanwa Chemical Co., Ltd. was used.

1. Production of Thermoplastic Polyester Resin Fiber Polyethylene terephthalate fiber was used as the thermoplastic polyester fiber of component (D).
Similarly to the thermoplastic polyester fiber of the component (D4), the polyethylene terephthalate pellets were dried at 50 ° C. for 12 hours using a shelf-type hot air dryer, and then φ200 μm polyethylene terephthalate using a high-temperature melt spinning apparatus. After drawing and spinning into a filament, it was immersed in liquid nitrogen. Thereafter, the fiber length was quickly crushed to about 5 μm using a drive render.
The thermoplastic polyester fiber produced as described above was used as the constituent element (D5).
In addition, Mitsui Chemicals, Inc. Mitsui PETJ120 was used for the polyethylene terephthalate.

2. Production of Fiber Reinforced Resin Composition The thermoplastic polyester fiber of the component (D5) is mixed with the polylactic acid resin of the component (A). At this time, the polylactic acid resin of the component (A) and the thermoplastic polyester fiber of the component (D) in these mixtures were mixed at a weight ratio of 80:20, and this was uniaxially kneaded and extruded. It was melt-kneaded at a temperature of 180 ° C. using a machine to produce a molding pellet of about 3 mm square. With respect to 100 parts by weight of the polylactic acid resin of the component (A) and the thermoplastic polyester fiber of the component (D), 0.1 parts by weight of the flame retardant of the component (B) is added to the pellets for molding. In proportion, the additive of component (C) was dry blended in a proportion of 1 part by weight. Thereafter, in the same manner as described above, a vertical combustion test piece and an Izod impact test specimen were prepared, and a UL94 vertical combustion test and an Izod impact test were performed.
In addition, the polylactic acid resin of the component (A) is Lacia H-100J manufactured by Mitsui Chemicals, and the flame retardant of the component (B) is camphor sulfonic acid manufactured by Kanto Chemical Co., Ltd. As an additive of (C), melamine polyphosphate (MPP-B) manufactured by Sanwa Chemical Co., Ltd. was used.

1. Production of Thermoplastic Polyester Resin Fiber Polyethylene terephthalate fiber was used as the thermoplastic polyester resin fiber of component (D).
Similarly to the thermoplastic polyester fiber of the component (D4), the polyethylene terephthalate pellets were dried at 50 ° C. for 12 hours using a shelf-type hot air dryer, and then φ200 μm polyethylene terephthalate using a high-temperature melt spinning apparatus. After drawing and spinning into a filament, it was cut with a cutter to a fiber length of about 10 mm.
The thermoplastic polyester resin fiber produced as described above was used as the constituent element (D6).
In addition, Mitsui Chemicals, Inc. Mitsui PETJ120 was used for the polyethylene terephthalate.

2. Preparation of Fiber Reinforced Resin Composition The thermoplastic polyester fiber of the component (D6) is mixed with the polylactic acid resin of the component (A). At this time, the polylactic acid resin of the component (A) and the thermoplastic polyester fiber of the component (D) in these mixtures were mixed at a weight ratio of 80:20, and this was uniaxially kneaded and extruded. It was melt-kneaded at a temperature of 180 ° C. using a machine to produce a molding pellet of about 3 mm square. With respect to 100 parts by weight of the component (A) polylactic acid resin + component (D) thermoplastic polyethylene fiber, 0.1 parts by weight of the component (B) flame retardant is added to the molding pellet. In proportion, the additive of component (C) was dry blended in a proportion of 1 part by weight. Thereafter, in the same manner as described above, a vertical combustion test piece and an Izod impact test specimen were prepared, and a UL94 vertical combustion test and an Izod impact test were performed.
In addition, the polylactic acid resin of the component (A) is Lacia H-100J manufactured by Mitsui Chemicals, and the flame retardant of the component (B) is camphor sulfonic acid manufactured by Kanto Chemical Co., Ltd. As an additive of (C), melamine polyphosphate (MPP-B) manufactured by Sanwa Chemical Co., Ltd. was used.

1. Production of Fiber Reinforced Resin Composition The thermoplastic polyester fiber of the component (D4) is mixed with the polylactic acid resin of the component (A). At this time, the polylactic acid resin of the component (A) and the thermoplastic polyester fiber of the component (D) in these mixtures were mixed at a weight ratio of 95: 5, and this was uniaxially kneaded and extruded. It was melt-kneaded at a temperature of 180 ° C. using a machine to produce a molding pellet of about 3 mm square. With respect to 100 parts by weight of the polylactic acid resin of the component (A) and the thermoplastic polyester fiber of the component (D), 0.1 parts by weight of the flame retardant of the component (B) is added to the pellets for molding. In proportion, the additive of component (C) was dry blended in a proportion of 1 part by weight. Thereafter, in the same manner as described above, a vertical combustion test piece and an Izod impact test specimen were prepared, and a UL94 vertical combustion test and an Izod impact test were performed.
In addition, the polylactic acid resin of the component (A) is Lacia H-100J manufactured by Mitsui Chemicals, and the flame retardant of the component (B) is camphor sulfonic acid manufactured by Kanto Chemical Co., Ltd. As an additive of (C), melamine polyphosphate (MPP-B) manufactured by Sanwa Chemical Co., Ltd. was used.

1. Production of Fiber Reinforced Resin Composition The thermoplastic polyester fiber of the component (D4) is mixed with the polylactic acid resin of the component (A). At this time, the polylactic acid resin of the component (A) and the thermoplastic polyester fiber of the component (D) in these mixtures were mixed at a weight ratio of 50:50, and this was uniaxially kneaded and extruded. It was melt-kneaded at a temperature of 180 ° C. using a machine to produce a molding pellet of about 3 mm square. With respect to 100 parts by weight of the polylactic acid resin of the component (A) and the thermoplastic polyester fiber of the component (D), 0.1 parts by weight of the flame retardant of the component (B) is added to the pellets for molding. In proportion, the additive of component (C) was dry blended in a proportion of 1 part by weight. Thereafter, in the same manner as described above, a vertical combustion test piece and an Izod impact test specimen were prepared, and a UL94 vertical combustion test and an Izod impact test were performed.

In addition, the polylactic acid resin of the component (A) is Lacia H-100J manufactured by Mitsui Chemicals, and the flame retardant of the component (B) is camphor sulfonic acid manufactured by Kanto Chemical Co., Ltd. As an additive of (C), melamine polyphosphate (MPP-B) manufactured by Sanwa Chemical Co., Ltd. was used.
As is apparent from Table 1, as a result of the vertical combustion test based on the UL94 standard, the flame retardant grade of the fiber-reinforced flame retardant composition molded product of the present invention is V-1 or higher, most of which are V-0. The result was shown. Although mentioned also in the following comparative example 9, compared with the case of only polylactic acid known to be UL standard NG, the fiber reinforced flame retardant composition molded article of the present invention was able to obtain high flame retardancy.
In order to ensure flame retardancy, by adding the additive of the component (C) within the scope of the above claims, higher flame retardancy can be achieved compared to the comparative example in which the additive of the component (C) is not added. Could be granted. In addition, it is known that the additive of the component (C) is not effective for use as a flame retardant unless it is usually added at least 5% by weight. In the present invention, a phosphate containing at least one of melamine phosphate, melamine pyrophosphate, melamine polyphosphate, and ammonium polyphosphate is combined with the flame retardant of the component (B) as an additive, 0.1 to 5 The flame retardancy could be improved with the addition of parts by weight, which is much less than the conventional amount.

Moreover, the said Example 1 and Example 2 which added the flame retardant of the component (B) or the additive of the component (C) to the fiber of the component (D) previously added the flame retardant to the fiber. Compared with Example 5 and Example 6 which do not have, the result that the combustion time decreased was obtained.
As a result of performing an Izod impact test in accordance with JIS K 7110, the impact strength of the fiber-reinforced flame retardant composition molded product of the present invention is 4.9 kJ / m 2, which is also given in a comparative example. Since the impact strength of the fiber reinforced flame retardant composition molded article of the present invention is significantly higher than that of the case where the fiber is not reinforced, the impact strength is 1.6 kJ / m 2.

Table 2 below summarizes the configurations and test results of Examples 7 to 12 described above.

[Comparative Example 1]
In Comparative Example 1, the additive of component (C) is not used, the thermoplastic polyester resin of component (A), the flame retardant of component (B), and the thermoplastic polyester fiber of component (D). Combined.

1. Production of Fiber Reinforced Resin Composition The thermoplastic polyester fiber of the component (D2) is mixed with the polylactic acid resin of the component (A). At this time, the polylactic acid resin of the component (A) and the thermoplastic polyester fiber of the component (D) in these mixtures were mixed at a weight ratio of 95: 5, and this was uniaxially kneaded and extruded. It was melt-kneaded at a temperature of 180 ° C. using a machine to produce a molding pellet of about 3 mm square.
The flame retardant of the component (B) was dry blended with the molding pellets at a ratio of 0.1 part by weight with respect to 100 parts by weight of the polylactic acid resin of the component (A). Thereafter, in the same manner as described above, a vertical combustion test piece and an Izod impact test specimen were prepared, and a UL94 vertical combustion test and an Izod impact test were performed.
In addition, Laissia H-100J manufactured by Mitsui Chemicals, Inc. was used for the polylactic acid resin of the component (A), and camphorsulfonic acid manufactured by Kanto Chemical Co., Ltd. was used as the flame retardant for the component (B).

[Comparative Example 2]
In Comparative Example 2, the additive of the component (C) was not used, the thermoplastic polyester resin of the component (A), the flame retardant of the component (B), and the thermoplastic polyester fiber of the component (D) Combined.

1. Production of Fiber Reinforced Resin Composition The thermoplastic polyester fiber of the component (D2) is mixed with the polylactic acid resin of the component (A). At this time, the polylactic acid resin of the component (A) and the thermoplastic polyester fiber of the component (D) in these mixtures were mixed at a weight ratio of 90:10, and this was uniaxially kneaded and extruded. It was melt-kneaded at a temperature of 180 ° C. using a machine to produce a molding pellet of about 3 mm square.
The flame retardant of the component (B) was dry blended with respect to 100 parts by weight of the component (A) with respect to 100 parts by weight of the molding pellets. Thereafter, in the same manner as described above, a vertical combustion test piece and an Izod impact test specimen were prepared, and a UL94 vertical combustion test and an Izod impact test were performed.
In addition, Laissia H-100J manufactured by Mitsui Chemicals, Inc. was used for the polylactic acid resin of the component (A), and camphorsulfonic acid manufactured by Kanto Chemical Co., Ltd. was used as the flame retardant for the component (B).

[Comparative Example 3]
In Comparative Example 3, the additive of component (C) is not used, the thermoplastic polyester resin of component (A), the flame retardant of component (B), and the thermoplastic polyester fiber of component (D). Combined.

1. Production of Fiber Reinforced Resin Composition The thermoplastic polyester fiber of the component (D2) is mixed with the polylactic acid resin of the component (A). At this time, the polylactic acid resin of the component (A) and the thermoplastic polyester fiber of the component (D) in these mixtures were mixed at a weight ratio of 70:30, and this was uniaxially kneaded and extruded. It was melt-kneaded at a temperature of 180 ° C. using a machine to produce a molding pellet of about 3 mm square.
The flame retardant of the component (B) was dry blended with the molding pellets at a ratio of 0.1 part by weight with respect to 100 parts by weight of the polylactic acid resin of the component (A). Thereafter, in the same manner as described above, a vertical combustion test piece and an Izod impact test specimen were prepared, and a UL94 vertical combustion test and an Izod impact test were performed.
In addition, Laissia H-100J manufactured by Mitsui Chemicals, Inc. was used for the polylactic acid resin of the component (A), and camphorsulfonic acid manufactured by Kanto Chemical Co., Ltd. was used as the flame retardant for the component (B).

[Comparative Example 4]
In Comparative Example 4, the additive of component (C) is not used, the thermoplastic polyester resin of component (A), the flame retardant of component (B), and the thermoplastic polyester fiber of component (D). Combined.

1. Production of Fiber Reinforced Resin Composition The thermoplastic polyester fiber of the component (D2) is mixed with the polylactic acid resin of the component (A). At this time, the polylactic acid resin of the component (A) and the thermoplastic polyester fiber of the component (D) in these mixtures were mixed at a weight ratio of 50:50, and this was uniaxially kneaded and extruded. It was melt-kneaded at a temperature of 180 ° C. using a machine to produce a molding pellet of about 3 mm square.
The flame retardant of the component (B) was dry blended with the molding pellets at a ratio of 0.1 part by weight with respect to 100 parts by weight of the polylactic acid resin of the component (A). Thereafter, in the same manner as described above, a vertical combustion test piece and an Izod impact test specimen were prepared, and a UL94 vertical combustion test and an Izod impact test were performed.
In addition, Laissia H-100J manufactured by Mitsui Chemicals, Inc. was used for the polylactic acid resin of the component (A), and camphorsulfonic acid manufactured by Kanto Chemical Co., Ltd. was used as the flame retardant for the component (B).

[Comparative Example 5]
In Comparative Example 5, the component (C) additive is not used, the component (A) thermoplastic polyester resin, the component (B) flame retardant, and the component (D) thermoplastic polyester fiber. Combined.

1. Production of Fiber Reinforced Resin Composition The thermoplastic polyester fiber of the component (D4) is mixed with the polylactic acid resin of the component (A). At this time, the polylactic acid resin of the component (A) and the thermoplastic polyester fiber of the component (D) in these mixtures were mixed at a weight ratio of 90:10, and this was uniaxially kneaded and extruded. It was melt-kneaded at a temperature of 180 ° C. using a machine to produce a molding pellet of about 3 mm square.
A ratio of 0.1 part by weight of the flame retardant of the component (B) to 100 parts by weight of the polylactic acid resin of the component (A) and the thermoplastic polyester fiber of the component (D) with respect to the pellets for molding. And dry blended. Thereafter, in the same manner as described above, a vertical combustion test piece and an Izod impact test specimen were prepared, and a UL94 vertical combustion test and an Izod impact test were performed.
In addition, Laissia H-100J manufactured by Mitsui Chemicals, Inc. was used for the polylactic acid resin of the component (A), and camphorsulfonic acid manufactured by Kanto Chemical Co., Ltd. was used as the flame retardant for the component (B).

[Comparative Example 6]
In Comparative Example 6, the component (C) additive was not used, the component (A) thermoplastic polyester resin, the component (B) flame retardant, and the component (D) thermoplastic polyester fiber. Combined.

1. Production of Fiber Reinforced Resin Composition The thermoplastic polyester fiber of the component (D4) is mixed with the polylactic acid resin of the component (A). At this time, the polylactic acid resin of the component (A) and the thermoplastic polyester fiber of the component (D) in these mixtures were mixed at a weight ratio of 70:30, and this was uniaxially kneaded and extruded. It was melt-kneaded at a temperature of 180 ° C. using a machine to produce a molding pellet of about 3 mm square.
A ratio of 0.1 part by weight of the flame retardant of the component (B) to 100 parts by weight of the polylactic acid resin of the component (A) and the thermoplastic polyester fiber of the component (D) with respect to the pellets for molding. And dry blended. Thereafter, in the same manner as described above, a vertical combustion test piece and an Izod impact test specimen were prepared, and a UL94 vertical combustion test and an Izod impact test were performed.
In addition, Laissia H-100J manufactured by Mitsui Chemicals, Inc. was used for the polylactic acid resin of the component (A), and camphorsulfonic acid manufactured by Kanto Chemical Co., Ltd. was used as the flame retardant for the component (B).

[Comparative Example 7]
In Comparative Example 7, the additive of component (C) was not used, the thermoplastic polyester resin of component (A), the flame retardant of component (B), and the thermoplastic polyester fiber of component (D) Combined.

1. Production of Thermoplastic Polyester Resin Fiber Polyethylene terephthalate fiber was used as the thermoplastic polyester resin fiber of component (D).
The polyethylene terephthalate pellets were subjected to drying treatment at 50 ° C. for 12 hours using a shelf-type hot air dryer. After 100 parts by weight of the polyethylene terephthalate pellets are dry blended with 0.1 parts by weight of the flame retardant of the component (B), and stretch-spun into φ200 μm polyethylene terephthalate filaments using a high-temperature melt spinning apparatus, liquid nitrogen Soaked in. Thereafter, the fiber length was quickly crushed to about 5 μm using a drive render.
The thermoplastic polyester resin fiber produced as described above was used as the constituent element (D7).
In addition, Mitsui Chemicals, Inc. Mitsui PETJ120 was used for the polyethylene terephthalate.

2. Production of Fiber Reinforced Resin Composition The thermoplastic polyester fiber of the component (D7) is mixed with the polylactic acid resin of the component (A). At this time, the polylactic acid resin of the component (A) and the thermoplastic polyester fiber of the component (D) in these mixtures were mixed at a weight ratio of 70:30, and this was uniaxially kneaded and extruded. It was melt-kneaded at a temperature of 180 ° C. using a machine to produce a molding pellet of about 3 mm square.
The flame retardant of the component (B) was dry blended with the molding pellets at a ratio of 0.1 part by weight with respect to 100 parts by weight of the polylactic acid resin of the component (A). Thereafter, in the same manner as described above, a vertical combustion test piece and an Izod impact test specimen were prepared, and a UL94 vertical combustion test and an Izod impact test were performed.
In addition, Laissia H-100J manufactured by Mitsui Chemicals, Inc. was used for the polylactic acid resin of the component (A), and camphorsulfonic acid manufactured by Kanto Chemical Co., Ltd. was used as the flame retardant for the component (B).

[Comparative Example 8]
In Comparative Example 8, the component (C) additive is not used, the component (A) thermoplastic polyester resin, the component (B) flame retardant, and the component (D) thermoplastic polyester fiber. Combined.

1. Production of Thermoplastic Polyester Resin Fiber Polyethylene terephthalate fiber was used as the thermoplastic polyester resin fiber of component (D).
The polyethylene terephthalate pellets were subjected to drying treatment at 50 ° C. for 12 hours using a shelf-type hot air dryer. After 100 parts by weight of the polyethylene terephthalate pellets, the flame retardant of the component (B) is dry blended at a ratio of 0.1 part by weight, stretched and spun into a φ200 μm polyethylene terephthalate filament using a high-temperature melt spinning apparatus, and then the fiber length It cut | disconnected with the cutter to about 10 mm.
The thermoplastic polyester resin fiber produced as described above was used as the constituent element (D8).
In addition, Mitsui Chemicals, Inc. Mitsui PETJ120 was used for the polyethylene terephthalate.

2. Preparation of Fiber Reinforced Resin Composition The thermoplastic polyester fiber of the component (D8) is mixed with the polylactic acid resin of the component (A). At this time, the polylactic acid resin of the component (A) and the thermoplastic polyester fiber of the component (D) in these mixtures were mixed at a weight ratio of 70:30, and this was uniaxially kneaded and extruded. It was melt-kneaded at a temperature of 180 ° C. using a machine to produce a molding pellet of about 3 mm square.
The flame retardant of the component (B) was dry blended with respect to 100 parts by weight of the component (A) with respect to 100 parts by weight of the molding pellets. Thereafter, in the same manner as described above, a vertical combustion test piece and an Izod impact test specimen were prepared, and a UL94 vertical combustion test and an Izod impact test were performed.
In addition, Laissia H-100J manufactured by Mitsui Chemicals, Inc. was used for the polylactic acid resin of the component (A), and camphorsulfonic acid manufactured by Kanto Chemical Co., Ltd. was used as the flame retardant for the component (B).

The configurations of the above Comparative Examples 1 to 8 and the test results are summarized in Table 3 below.

[Comparative Example 9]
In Comparative Example 9, resin reinforcement with fibers was not performed, and only the thermoplastic polyester resin of the component (A) and the flame retardant of the component (B) were combined.
A polylactic acid resin was used as the thermoplastic polyester resin of the component (A). The pellets were dried at 50 ° C. for 12 hours using a shelf-type hot air dryer, and then the flame retardant of the component (B) was dry blended to the pellets in the amount shown in Table 4. Thereafter, in the same manner as described above, a vertical combustion test piece and an Izod impact test specimen were prepared, and a UL94 vertical combustion test and an Izod impact test were performed.
In addition, Laissia H-100J manufactured by Mitsui Chemicals, Inc. was used for the polylactic acid resin of the component (A), and camphorsulfonic acid manufactured by Kanto Chemical Co., Ltd. was used as the flame retardant for the component (B).

[Comparative Example 10]
In Comparative Example 10, resin reinforcement with fibers was not performed, and only the thermoplastic polyester resin of the component (A) and the additive of the component (C) were combined.
A polylactic acid resin was used as the thermoplastic polyester resin of the component (A). The pellets were dried at 50 ° C. for 12 hours using a shelf-type hot air dryer, and then the additive of component (C) was dry blended to the pellets in the compounding amounts shown in Table 4. Thereafter, in the same manner as described above, a vertical combustion test piece and an Izod impact test specimen were prepared, and a UL94 vertical combustion test and an Izod impact test were performed.
In addition, the polylactic acid resin of the component (A) is Lacia H-100J manufactured by Mitsui Chemicals, and the additive of the component (C) is melamine polyphosphate (MPP-) manufactured by Sanwa Chemical Co., Ltd. B) was used.

The configurations of Comparative Example 9 and Comparative Example 10 and the test results are summarized in Table 4 below.

[Comparative Example 11]
In Comparative Example 11, the thermoplastic polyester resin of the component (A) and the component (D) are not subjected to flame retardant of the resin by the flame retardant of the component (B) and the additive of the component (C). Only thermoplastic polyester fibers).
The thermoplastic polyester fiber of the component (D4) is mixed with the polylactic acid resin of the component (A). At this time, the polylactic acid resin of the component (A) and the thermoplastic polyester fiber of the component (D) in these mixtures were mixed at a weight ratio of 90:10, and this was uniaxially kneaded and extruded. It was melt-kneaded at a temperature of 180 ° C. using a machine to produce a molding pellet of about 3 mm square.
Thereafter, in the same manner as described above, a vertical combustion test piece and an Izod impact test specimen were prepared, and a UL94 vertical combustion test and an Izod impact test were performed.
In addition, the Lacia H-100J by Mitsui Chemicals, Inc. was used for the polylactic acid resin of the component (A).

[Comparative Example 12]
In this comparative example 12, only the thermoplastic polyester resin of the component (A), the additive of the component (C), and the thermoplastic polyester fiber of the component (D) are used without using the flame retardant of the component (B). Combined.
The thermoplastic polyester fiber of the component (D4) is mixed with the polylactic acid resin of the component (A). At this time, the polylactic acid resin of the component (A) and the thermoplastic polyester fiber of the component (D) in these mixtures were mixed at a weight ratio of 90:10, and this was uniaxially kneaded and extruded. It was melt-kneaded at a temperature of 180 ° C. using a machine to produce a molding pellet of about 3 mm square. The additive for component (C) is dried at a ratio of 1 part by weight with respect to 100 parts by weight of the polylactic acid resin of component (A) and the thermoplastic polyester fiber of component (D). Blended. Thereafter, in the same manner as described above, a vertical combustion test piece and an Izod impact test specimen were prepared, and a UL94 vertical combustion test and an Izod impact test were performed.
In addition, the polylactic acid resin of the component (A) is Lacia H-100J manufactured by Mitsui Chemicals, and the additive of the component (C) is melamine polyphosphate (MPP-) manufactured by Sanwa Chemical Co., Ltd. B) was used.

[Comparative Example 13]
In Comparative Example 13, fiber reinforcement was performed using cellulose fibers without using the thermoplastic polyester fibers of the component (D). The thermoplastic polyester resin of component (A), the flame retardant of component (B), the additive of component (C), and cellulose fiber were combined.

1. Preparation of Fiber Reinforced Resin Composition For cellulose fiber, SELISH PC110T manufactured by Daicel Chemical Industries, Ltd. was pulverized and dried. This cellulose fiber was used as a component (D ′).
The cellulose fiber of the component (D ′) is mixed with the polylactic acid resin of the component (A). At this time, the polylactic acid resin of the component (A): the cellulose fibers of the component (D ′) in these mixtures were mixed at a weight ratio of 90:10, and this was mixed with a single-screw kneading extruder. Was used for melt-kneading at a temperature of 180 ° C. to produce a molding pellet of about 3 mm square. The proportion of the flame retardant of the component (B) is 0.1 parts by weight with respect to 100 parts by weight of the polylactic acid resin of the component (A) and the cellulose fiber of the component (D ′). Then, the additive of the component (C) was dry blended at a ratio of 1 part by weight. Thereafter, in the same manner as described above, a vertical combustion test piece and an Izod impact test specimen were prepared, and a UL94 vertical combustion test and an Izod impact test were performed.
In addition, the polylactic acid resin of the component (A) is Lacia H-100J manufactured by Mitsui Chemicals, and the flame retardant of the component (B) is camphor sulfonic acid manufactured by Kanto Chemical Co., Ltd. As an additive of (C), melamine polyphosphate (MPP-B) manufactured by Sanwa Chemical Co., Ltd. was used.

[Comparative Example 14]
In Comparative Example 14, fiber reinforcement was performed using cellulose fibers without using the thermoplastic polyester fibers of the component (D). The thermoplastic polyester resin of the component (A), the flame retardant of the component (B), and cellulose fiber were combined.

1. Preparation of Fiber Reinforced Resin Composition For cellulose fiber, SELISH PC110T manufactured by Daicel Chemical Industries, Ltd. was pulverized and dried. This cellulose fiber was used as a component (D ′).
The cellulose fiber of the component (D ′) is mixed with the polylactic acid resin of the component (A). At this time, the polylactic acid resin of the component (A): the cellulose fibers of the component (D ′) in these mixtures were mixed at a weight ratio of 90:10, and this was mixed with a single-screw kneading extruder. Was used for melt-kneading at a temperature of 180 ° C. to produce a molding pellet of about 3 mm square. A ratio of 0.1 part by weight of the flame retardant of the component (B) to 100 parts by weight of the polylactic acid resin of the component (A) + cellulose fiber of the component (D ′) with respect to the pellet for molding And dry blended. Thereafter, in the same manner as described above, a vertical combustion test piece and an Izod impact test specimen were prepared, and a UL94 vertical combustion test and an Izod impact test were performed.
In addition, Laissia H-100J manufactured by Mitsui Chemicals, Inc. was used for the polylactic acid resin of the component (A), and camphorsulfonic acid manufactured by Kanto Chemical Co., Ltd. was used as the flame retardant for the component (B).

[Comparative Example 15]
In Comparative Example 15, fiber reinforcement was performed using cellulose fibers without using the thermoplastic polyester fibers of the component (D). The thermoplastic polyester resin of component (A), the additive of component (C), and cellulose fiber were combined.

1. Preparation of Fiber Reinforced Resin Composition For cellulose fiber, SELISH PC110T manufactured by Daicel Chemical Industries, Ltd. was pulverized and dried. This cellulose fiber was used as a component (D ′).
The cellulose fiber of the component (D ′) is mixed with the polylactic acid resin of the component (A). At this time, the polylactic acid resin of the component (A): the cellulose fibers of the component (D ′) in these mixtures were mixed at a weight ratio of 90:10, and this was mixed with a single-screw kneading extruder. Was used for melt-kneading at a temperature of 180 ° C. to produce a molding pellet of about 3 mm square. Dry blending of the additive of the component (C) at a ratio of 1 part by weight with respect to 100 parts by weight of the polylactic acid resin of the component (A) and the cellulose fiber of the component (D ′) to the pellet for molding did. Thereafter, in the same manner as described above, a vertical combustion test piece and an Izod impact test specimen were prepared, and a UL94 vertical combustion test and an Izod impact test were performed.
In addition, the polylactic acid resin of the component (A) is Lacia H-100J manufactured by Mitsui Chemicals, and the additive of the component (C) is melamine polyphosphate (MPP-) manufactured by Sanwa Chemical Co., Ltd. B) was used.

以上の実施例１１〜実施例１５の構成、及び試験結果を纏めれば、次の表５のとおりである。表５における比較例１３、及び、比較例１４、比較例１５のＤ'（１０）は、構成要素（Ｄ'）のセルロース繊維が１０重量部であることを表している。 The configurations of the above Comparative Examples 11 to 15 and the test results are summarized in Table 5 below.

The configurations of the above Examples 11 to 15 and the test results are summarized in Table 5 below. D ′ (10) of Comparative Example 13, and Comparative Examples 14 and 15 in Table 5 indicates that the cellulose fiber of the component (D ′) is 10 parts by weight.

  As described above, as shown in Tables 1 to 4, according to the present invention, mechanical properties typified by impact properties are improved, and a biomass-derived fiber-reinforced flame-retardant resin composition molded product having a grade of flame retardancy V-0. Could get.

  There is no restriction | limiting in particular about the shaping | molding method of Claim 8 in this invention, For example, the fiber obtained by any of extrusion molding, foam molding, blow molding, and hollow molding using the mixture in any one of Claims 1-8. There is no problem even if it is a reinforced flame retardant resin composition molded article.

  If the component (A) of Claim 1 in this invention is a thermoplastic polyester resin, there will be no restriction | limiting in particular, For example, if it is a biomass-derived polylactic acid resin, it will be easy to implement and environmental impact will also be reduced.

  The component (B) of claim 1 is not particularly limited as long as it is a flame retardant containing at least one of an organic sulfonic acid compound, an organic carboxylic acid compound, and a metal salt thereof. Aliphatic sulfonic acid and aromatic sulfonic acid. An aliphatic sulfonic acid is a compound represented by the general formula R—SO 3 H, wherein R is a carbon chain, and R includes not only a linear structure but also a branched structure, a cyclic structure, and a hydroxy group. Structure is also included. Monoterpene sulfonic acids including camphorsulfonic acid and its sodium or potassium salts are preferred, but other aliphatic sulfonic acids can also be used. Aromatic sulfonic acid refers to a sulfonic acid containing a benzene ring, and alkylbenzenesulfonic acid other than dodecylbenzenesulfonic acid and its sodium salt or potassium salt can also be used. Also, chlorobenzenesulfonic acid, dichlorobenzenesulfonic acid, trichlorobenzenesulfonic acid, aminobenzenesulfonic acid, diaminobenzenesulfonic acid, nitrobenzenesulfonic acid, dinitrobenzenesulfonic acid, hydrazinobenzenesulfonic acid, hydroxybenzenesulfonic acid, laurylbenzenesulfonic acid Aromatic sulfonic acids such as formylbenzenesulfonic acid and benzenesulfonic acid can also be used.

  Examples of organic carboxylic acid compounds include aliphatic carboxylic acids and aromatic carboxylic acids. Aliphatic carboxylic acid refers to a compound represented by the general formula R—COOH, where R is composed of a carbon chain. Unsaturated fatty acids and their sodium or potassium salts can be used. Further, R includes not only a linear structure but also a branched fatty acid having a branched chain, a cyclic fatty acid having a cyclic structure, a hydroxyl fatty acid containing a hydroxy group, and the like. Aromatic carboxylic acid is a carboxylic acid containing a benzene ring, for example, benzoic acid, methylbenzoic acid, dimethylbenzoic acid, trimethylbenzoic acid, isopropylbenzoic acid, phthalic acid, methylisophthalic acid, phenylacetic acid, phenylpropanoic acid, Aromatic carboxyl such as phenylacrylic acid, salicylic acid, hydroxybenzoic acid, hydroxymethylbenzoic acid, dihydroxybenzoic acid, methoxybenzoic acid, dimethoxybenzoic acid, trihydroxybenzoic acid, dihydroxymethoxybenzoic acid, hydroxydiphenylacetic acid, hydroxyphenylpropanoic acid Acids and their sodium or potassium salts can be used.

  The component (C) of claim 1 is not particularly limited as long as it is a phosphate containing at least one of melamine phosphate, melamine pyrophosphate, melamine polyphosphate, and ammonium polyphosphate. The phosphate applied to the component (C) is generally classified as an intumescent flame retardant. In the combination of the present invention, new effects such as improvement of mechanical properties as well as improvement of flame retardancy are also exhibited.

  The component (D) of claim 1 is not particularly limited as long as it is a thermoplastic polyester resin that satisfies the temperature condition. For example, polyethylene terephthalate, polybutylene terephthalate, poly 1,4 cyclohexane dimethacrylate, polyethylene 2,6 naphthalate And resins containing any one kind or plural kinds selected from polyglycolic acid. Moreover, if the fiber length of the component (D) of Claim 6 is within the range of the claims, there is no problem even if the fiber lengths are not uniform.

  In addition to the component (A), the component (B), the component (C), and the component (D), there is no problem even if a plasticizer, a compatibilizer, and a hydrolysis-resistant agent are added if necessary. Absent. In particular, when injection molding is performed, it is preferable to add a plasticizer. As the plasticizer, known ones generally used as polymer plasticizers can be used without any particular limitation. For example, polyester plasticizers, glycerin plasticizers, polycarboxylic acid ester plasticizers, polyalkylene glycol plasticizers. And epoxy plasticizers. The compatibilizer is not particularly limited as long as it functions as a compatibilizer for the constituent element (A) and constituent element (D) of claim 1. Examples of the compatibilizer include an inorganic filler, a polymer compound obtained by grafting or copolymerizing a glycidyl compound or an acid anhydride, and an organometallic compound, and one or more kinds may be used. A well-known thing can be especially used as a hydrolysis-resistant agent without a restriction | limiting, For example, the Nisshinbo Co., Ltd. carbodilite (plastic polycarbodiimide resin) is mentioned.

Claims (8)

A fiber-reinforced flame-retardant resin composition having the following structures (A), (B), (C), and (D).
(A) Thermoplastic polyester resin (B) Flame retardant (C) Additive (D) The melting point is higher than the melting point of the thermoplastic polyester resin of the component (A), and the thermoplastic polyester resin of the component (A) Thermoplastic polyester fiber that is lower than the decomposition start temperature.   The thermoplastic polyester resin of the component (A) of claim 1 is a polylactic acid resin, or any one of a microorganism-produced resin (polyhydroxyalkanoic acid), polybutylene succinate, polyethylene succinate, and polytrimethylene terephthalate, Or the fiber reinforced flame-retardant resin composition of Claim 1 containing multiple types.   When the weight of the flame retardant of the component (B) of claim 1 is 100 parts by weight of the thermoplastic polyester resin of the component (A) and the thermoplastic polyester fiber of the component (D), The fiber-reinforced flame-retardant resin composition according to claim 1 or 2, wherein the content is 0.001 to 1 part by weight.   The additive of the component (C) is 0.1 parts by weight when the weight of the thermoplastic polyester resin of the component (A) and the thermoplastic polyester fiber of the component (D) is 100 parts by weight. The fiber-reinforced flame-retardant resin composition according to claim 1, wherein the composition is ˜5 parts by weight.   The melting point of the thermoplastic polyester fiber of the component (D) is 40 ° C to 160 ° C higher than the melting point of the thermoplastic polyester resin of the component (A). Fiber reinforced flame retardant resin composition.   The fiber reinforced flame-retardant resin composition according to any one of claims 1 to 5, wherein the thermoplastic polyester fiber of the component (D) has a fiber length of 5 µm to 10 mm.   The thermoplastic polyester resin of the component (A), the flame retardant of the component (B), the additive of the component (C), and the thermoplastic polyester resin of the component (A) having a melting point of the component (D) Is a method for producing a fiber-reinforced flame-retardant resin composition containing thermoplastic polyester fibers that is higher than the melting point of the thermoplastic polyester resin and lower than the decomposition start temperature of the thermoplastic polyester resin of the component (A). 100 parts by weight of the thermoplastic polyester fiber D) 0.001 to 1 part by weight of the flame retardant of the component (B), or 0.1 to 5 parts by weight of the additive of the component (C) Or a step of simultaneously containing 0.001 to 1 part by weight of the flame retardant of the component (B) and 0.1 to 5 parts by weight of the additive of the component (C), and then the component ( A) thermoplastic When the thermoplastic polyester resin of the component (A) is 100 parts by weight in combination with the ester resin, the flame retardant of the component (B) is 0.001 to 1 part by weight, or the component ( 0.1 to 5 parts by weight of the additive of C), or 0.001 to 1 part by weight of the flame retardant of the component (B) and 0.1 to 5 parts by weight of the additive of the component (C) A method for producing a fiber-reinforced flame-retardant resin composition, comprising:   A fiber reinforced flame retardant resin composition molded product molded using the fiber reinforced flame retardant resin composition of claim 1 to claim 6, wherein the thermoplastic polyester fiber of the component (D), and A fiber reinforced flame retardant resin composition obtained by processing by an injection molding method in which the weight ratio of the component (A) to the thermoplastic polyester resin is in the range of 5:95 to 50:50 Molding.