JPH0339348A - Thermoplastic resin composition - Google Patents

Abstract

PURPOSE:To obtain a composition, composed of an acrylic resin, specific polyamide-imide elastomer, hindered amine-based light stabilizer and/or benzotriazole-based ultraviolet ray absorber and excellent in permanent antistatic properties, transparency and weather resistance. CONSTITUTION:A resin composition obtained by blending 100 pts.wt. composition composed of (A) 70-97wt.% acrylic resin and (B) 30-3wt.% polyamide-imide elastomer, prepared from (B1) caprolactam, (B2) an aromatic tri(tetra)carboxylic acid (anhydride) capable of forming imide rings and (B3) a polyoxyalkylene glycol containing >=50wt.% polyoxyethylene glycol and having 40-85wt.%, preferably 65-85wt.% content of the component (B3) and >=1.5 relative viscosity at 30 deg.C or 100 pts.wt. composition prepared by, as necessary, further blending (C) 0.01-10 pts.wt. specific alkaline (earth) metal salt therein with (D) 0.1-5 pts.wt. hindered amine-based light stabilizer and/or (E) 0.1-5 pts.wt., benzotriazole-based ultraviolet ray absorber.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention has excellent permanent antistatic properties, transparency,
This relates to an acrylic resin mx product that has good weather resistance.

(Prior Art) Acrylic resin has been widely used as a material for light electrical parts such as lighting equipment, equipment nameplates, and meter covers due to its excellent properties such as transparency. Recently, in addition to these, there has been an increase in the number of fields that require antistatic properties, such as copying machine parts, various dustproof parts, electronic products such as television front panels and display PTV screens, and parts for office automation equipment. are doing.

As a method to prevent electrostatic charging of synthetic polymer materials,
JP-A-55-36237 and JP-A-63-63739 disclose that a vinyl copolymer having a polyoxyethylene chain and a sulfonate, carboxylate, or quaternary ammonium salt structure is kneaded into an acrylic resin. The method is also disclosed in JP-A-62-119256 and JP-A-62-2419.
Publication No. 45, Publication No. 62-256855, Publication No. 62-1
No. 1759 discloses a method for blending a specific polyetheramide elastomer.

However, these methods use special polymer compounds, which increases manufacturing costs, and although sufficient antistatic performance can be obtained, they lack transparency, weather resistance, etc. that acrylic resins inherently have. They often lose their good properties.

(Problems to be Solved by the Invention) In view of the above circumstances, an object of the present invention is to provide an acrylic resin composition that has excellent permanent antistatic properties and good weather resistance. It is.

(Means for Solving the Problems) As a result of intensive research to develop acrylic resins and acid compounds having the above-mentioned preferable properties, the present inventors have found that specific polyoxyalkylene glycols can be used as soft segments. , a polyamideimide elastomer whose hard segment is a polyamideimide dicarboxylic acid obtained from caprolactam and an aromatic polycarboxylic acid capable of forming at least one trivalent or tetravalent imide ring such as trimellitic acid or pyromellitic acid. This polyamide-imide elastomer and acrylic resin are blended in a predetermined ratio, and have good affinity with acrylic resins and are heat resistant, and can exhibit excellent antistatic effects with a relatively small amount. By doing so, an acrylic resin composition having excellent permanent antistatic properties can be obtained, and the &1ltc of the elastomer can make the composition have good transparency and rigidity, and further specific to the composition. By blending these compounds in a predetermined ratio, antistatic properties can be further improved, and by adding a hindered amine stabilizer and/or a benzotriazole UV absorber, excellent weather resistance can be imparted. The present inventors have discovered that the present invention can be obtained, and have completed the present invention.

That is, the present invention includes; (i) (A) 70 to 97% by weight of an acrylic resin, and (8) (a) caprolactam, (I+) an aromatic tricarboxylic acid capable of forming at least one imide ring, and an aromatic at least one selected from group tetracarboxylic acids and their acid anhydrides; and (b) polyoxyalkylene glycol containing 50% by weight or more of polyoxyethylene glycol, and containing a polyoxyalkylene glycol segment. The content is 40 to 85% by weight, and the relative viscosity at a temperature of 30°C is 1.
．． 5 or more polyamideimide elastomer is 30 to 3
% by weight, or (ii) 70 to 97% by weight of component (A) and ([I)
(C) aromatic sulfonic acid, alkyl sulfonic acid, organic carboxylic acid, organic phosphoric acid, alkali metal salts and alkaline earth metal salts thereof, based on 100 parts by weight of the resin mixture containing 30 to 3% by weight of the components. At least one selected from among 0.
0.1 to 5 parts by weight of at least one hindered amine light stabilizer or/and at least one benzotriazole ultraviolet ray to 100 parts by weight of the resin composition. The present invention provides a thermoplastic resin and acid compound containing 0.1 to 5 parts by weight of an absorbent.

The present invention will be explained in detail below.

In the composition of the present invention, examples of the acrylic resin used as the component (^) include polymethyl methacrylate (MMA resin), rubber-reinforced polymethyl methacrylate, and methyl methacrylate-butadiene-styrene copolymer (M
BS resin), methyl methacrylate-acrylonitrile-
Examples include butadiene-styrene copolymer (MABS#A resin), and polymers obtained by copolymerizing 60% by weight or more of methyl methacrylate with 40% by weight or less of other copolymerizable vinyl monomers. You can also use
Two or more types may be used in combination.

Examples of the copolymerizable vinyl monomer include methyl methacrylate, butyl methacrylate, cyclohexyl methacrylate, 2-ethylhexyl methacrylate, methyl acrylate, ethyl acrylate, butyl acrylate, 2-ethylhexyl acrylate, styrene, α-methylstyrene, acrylonitrile, acrylic acid, methacrylic acid, fumaric acid, maleic acid, itaconic acid, etc. are mentioned. II) aromatic tricarboxylic acids, aromatic tetracarboxylic acids capable of forming at least one imide ring,
and at least one selected from these acid anhydrides.
A polyamide-imide is obtained from a polyoxyalkylene glycol containing 50% by weight or more of polyoxyethylene glycol and (b) polyoxyethylene glycol, and from the components (a) and (II), a hard segment is obtained, and this is a soft segment. It is a multi-bronch type copolymer which is linked to component (b) glycol through an ester bond.

As the component (D), aromatic tricarboxylic acids, aromatic tetracarboxylic acids, or acid anhydrides thereof, which are capable of reacting with an axon group to form at least one imide ring, are used.

Specifically, the aromatic tricarboxylic acid is 1.2
．． 4-trimellitic acid, 1,2.5-naphthalenetricarboxylic acid, 2,6.7-naphthalenetricarboxylic acid, 3
．． Examples include 3',4-diphenyltricarboxylic acid, benzophenone-3,3''4-tricarboxylic acid, diphenylsulfone-33°4-tricarboxylic acid, and diphenyl ether-3°3',4-licarboxylic acid.

In addition, specific aromatic tetracarboxylic acids include:
Pyromellitic acid, diphenyl-2,2°3.3”-tetracarboxylic acid, benzophenone-2,2°, 3,3°-
Tetracarboxylic acid, diphenylsulfone-2,2°,3
, 3°-tetracarboxylic acid, diphenyl ether-2,
Examples include 2', 3° and 3°-tetracarboxylic acids. These aromatic polycarboxylic acids and their acid anhydrides may be used alone or in a combination of 2M or more, and are substantially equimolar to the glycol of component (c), that is, 0.9 It is used in a range of 1.1 to 1.1 times the mole.

Polyamideimide, which is a hard segment, is involved in the heat resistance, strength, hardness, and affinity with the acrylic resin of the elastomer.

It is necessary that the content of the polyamitimide segment in the elastomer is 15 to 60% by weight (ie, the content of polyoxyalkylene glycol segment is 85 to 40% by weight). If the content is less than 15% by weight, the strength of the elastomer will be low and the mechanical properties will be low when kneaded with an acrylic resin, which is undesirable. If it exceeds 60% by weight, the affinity will be poor and the antistatic effect will be reduced. This is not desirable as it may become low.

In particular, the content of the hard segment greatly affects the affinity with the acrylic resin, and for example, in order to maintain transparency when kneaded with an MMA resin, the content of the hard segment is preferably 35% by weight or less.

Moreover, the number average molecular weight of the polyamideimide of the hard segment is 500 to 3000. Preferably 500-2,00
A number average molecular weight of 0 is desirable. If the number average molecular weight is less than 500, the melting point will be low and heat resistance will be decreased, and if it exceeds 3,000, the affinity with the acrylic resin will be undesirable.

As component (b) in the polyamideimide elastomer, polyoxyalkylene glycol containing 50% by weight or more of polyoxyethylene glycol is used.

That is, polyoxyethylene glycol may be used alone, or a mixture of polyoxyethylene glycol containing 50% by weight or more of polyoxyethylene glycol and other polyoxyalkylene glycols may be used.

The number average molecular weight of the polyoxyethylene glycol used is not particularly limited, but it is preferably in the range of 500 to 5,000. If the number average molecular weight is less than 500, the melting point will be low, although it depends on the composition of the elastomer. If it exceeds 5,000, it becomes difficult to obtain a strong elastomer, and when kneaded with acrylic resin, a decrease in impact strength and rigidity may occur. So I don't like it.

Polyoxyalkylene glycols that can be used in combination with polyoxymethylene glycol include polyoxyalkylene glycols that account for less than 50% by weight of the glycol component and have a number average molecular weight of 500 to 5.
000 polyoxytetramethylene glycol, modified polyoxytetramethylene glycol, polyoxypropylene glycol, etc. can be used.

As the modified polyoxytetramethylene glycol, -(CI4
1) Is part of 4-0- 11? Examples include those replaced with -0-. Here, R is an alkylene group having 2 to 10 carbon atoms, specifically an ethylene group, l.

2-propylene group, l, 3-propylene group, 2-methyl-1,3-propylene group, 2,2-dimethyl-1,3-
Preferred examples include a propylene group, a pentamethylene group, and a hexamethylene group. There is no particular restriction on the amount of modification, but it is usually selected within the range of 3 to 50% by weight. Also,
The amount of modification and the type of alkylene group are appropriately selected depending on the required properties of the acrylic resin composition, such as low-temperature impact resistance and heat resistance.

This modified polyoxytetramethylene glycol can be produced, for example, by copolymerization of tetrahydrofuran and a diol using a heteropolyacid as a catalyst, or by copolymerization of a cyclic ether that is a diol or a condensation product of a diol and butanediol.

Regarding the method for producing the boria-based toy ξ-dos elastomer of component 1f(a), any method may be used as long as it can produce a homogeneous amitimide elastomer. For example,
The following methods are used.

(a) caprolactam component, (d) aromatic polycarboxylic acid component, and (b) glycol component;
) The components are mixed in a substantially equimolar ratio, and while maintaining the water content in the resulting polymer at 0.1 to 1% by weight,
Preferably from 150 to 300°C1, more preferably from 180 to
This is a method of polymerizing at 280"C. In this method, the reaction temperature can be raised stepwise during dehydration condensation.

At this time, some caprolactam remains unreacted, but it is desirable to remove it from the reaction mixture by distilling it off under reduced pressure. below, preferably 200-300
Further higher polymerization can be achieved by postpolymerization at a temperature in the range of 230 to 280"C, more preferably 230 to 280"C.

In this reaction method, esterification and amidation occur simultaneously during the dehydration condensation process to prevent coarse phase separation, thereby producing a homogeneous and transparent elastomer. This elastomer has excellent affinity with acrylic resins, and provides excellent antistatic effects and mechanical properties when kneaded with acrylic resins.

By causing the esterification reaction and caprolactam polymerization to occur simultaneously, and controlling the rate of each reaction,
In order to obtain a transparent and homogeneous elastomer,
The produced water is removed from the system to reduce the water content of the reaction system to 0.
．． It is preferable to carry out the polymerization while maintaining the water content in the range of 1 to 1% by weight.If this moisture content exceeds 1% by weight, the polymerization of caprolactam will preferentially result in coarse phase separation, while if it is less than 0.1% by weight, the ester will be polymerized. The water content is appropriately selected within the above range depending on the desired physical properties of the elastomer.

Furthermore, in the reaction, a method may be adopted in which the water content in the reaction system is reduced as the reaction progresses, if desired.

This water content can be controlled by, for example, reaction conditions such as reaction temperature, flow rate of inert gas introduced, degree of pressure reduction, or reactor structure.

The degree of polymerization of the polyamitimide elastomer used in the present invention can be arbitrarily changed as necessary, but the elastomer concentration is 0.5 wt/v.

The relative viscosity measured in a 1% metacresol solution at a temperature of 30°C is 1. It must be 5 or more. This relative viscosity is 1. If it is less than 5, the mechanical properties will be poor, and when kneaded with an acrylic resin, there is a risk that the mechanical properties of the composition will be insufficient. A preferable relative viscosity is 1.6 or more.

Furthermore, when producing the boria-imide elastomer, an esterification catalyst can be used as a polymerization accelerator.

Examples of the polymerization accelerator include phosphoric acid, polyphosphoric acid,
Phosphorus compounds such as metaphosphoric acid; Tetraalkylorthotitanates such as tetrabutyl orthotitanate; Tin-based catalysts such as diptyltin oxide and dibutyltin laurate; Manganese-based catalysts such as manganese acetate; Antimony-based catalysts such as antimony dioxide; Lead acetate Lead-based catalysts such as . The catalyst may be added at the initial stage of polymerization or at the middle stage of polymerization.

Furthermore, in order to increase the thermal stability of the obtained polyamide-imide elastomer, stabilizers such as various heat-resistant anti-aging agents and antioxidants can be used. It may be added, or it may be added after polymerization and before mixing with the acrylic resin.

Examples of the heat-resistant stabilizer include N,N'-hexamethylene-bis(3,5-di-t-butyl-4-hydroxycinnamate ξdo), 4,4°-bis(2,6-di t-butylphenol), 2°2°-methylenebis(4
-ethyl-6-t to butylphenol) 11: N,N'-bis(β-naphthyl) -p-phenylenediamine, N,N'-diphenyl-p-phenylenediamine, poly(2 , 2,4-trimethyl-1,2-dihydroquinoline); copper salts such as copper chloride and copper iodide; sulfur compounds and phosphorus compounds such as dilaurylthiodipropionate. .

The acrylic resin as component (A) in the composition of the present invention and (
B) Regarding the blending ratio with the polyamide-imide elastomer for component a, the content of component (A) is 70 to 97% by weight.
It is necessary to mix the component (B) in such a proportion that the content thereof is 30 to 3% by weight. If the content of component (B) is less than 3% by weight, a sufficient antistatic effect cannot be obtained, and if it exceeds 30% by weight, the rigidity tends to decrease.

The resin composition of the present invention can be produced by kneading a mixture of components (A) and (B) using a known method, such as a Banbury mixer-mixing roll, a -screw or twin-screw extruder, etc. I can do it.

The kneading temperature at this time is preferably in the range of 180 to 280°C.

In the present invention, in order to further exhibit the antistatic effect, as component (C), dodecylbenzenesulfonic acid,
Aromatic sulfonic acids such as p-toluenesulfonic acid, dodecyl diphenyl ether disulfonic acid, naphthalenesulfonic acid, and a condensate of naphthalenesulfonic acid and formalin;
Alkyl sulfonic acids such as laurisulfonic acid; organic carboxylic acids such as stearic acid, lauric acid, and polyacrylic acid; organic phosphoric acids such as diphenyl phosphite and diphenyl phosphate, and their alkali metal salts and alkaline earth metals At least one selected from salts can be used. Among these, alkali metal salts and alkaline earth metal salts are preferred, and sodium salts and potassium salts are particularly preferred.

The blending amount of the component (C) is 0.01 to 10 parts by weight, preferably 0.01 to 10 parts by weight, based on 100 parts by weight of the acrylic resin as the component (^) and the polyamide polyelastomer as the component (B). .1-10 parts by weight. If the amount is less than 0.01 part by weight, the effect of its use will not be fully demonstrated, and if it exceeds 10 parts by weight, the rigidity may decrease, and when molded, the surface may become rough, or the mold may become discolored. This may lead to undesirable situations such as

The hindered amine light stabilizer used in the present invention as component (1) is, for example, 4-benzoyloxy-2,2,6
, 6-titramethylpiperidine, veridine, 4-(pt-butylbenzoyloxy)-2゜2.6.6-titramethylpiperidine, 4-(pt-butylbenzoyloxy)
-1,2,2゜6.6-pentamethylpiperidine, 4-
Cherishiroyloxy-1,2,2,6,6-pentamethylpiperidine, 4-acetoxy-2,2,6,6-titramethylpiveridine, 4-butyloxy-2,2,6
, 6-titramethylpiperidine, 4-stearoyloxy-2,2,6,6-titramethylpiperidine, 4-cyclohexanoyl-2゜2.6.6-titramethylpiperidine, bis(2゜2.6 .6-tetramethyl-4-piperidyl)adipate, bis(2,2,6,6-tetramethyl4-piperidyl)sebacate, bis(2,2゜66
-tetramethyl-4-piperidyl)dodecanedieate,
Bis(1,2,2,6,6-pentamethyl-4-piperidyl) terephthalate, bis(1,2,2,6,6-pentamethyl-4-piperidyl) sebacate, tetrakis(2,2,6゜6- Tetramethyl-4-piperidyl) 1
,2,3゜4-butanetetracarboxylate, 2-
(3°5-di-L-7'thyl-4-hydroxybenzyl)-2-n-butylmalonic acid bis(1,2,2,6-pentamethyl-4-piperidyl) and the like. The amount added is 0.1 to 5 parts by weight, preferably 0.1 to 5 parts by weight. The amount is 2 to 3 parts by weight, more preferably 0.3 to 2 parts by weight.

The benzotriazole ultraviolet absorber as component ■ is
For example, 2-(5-methyl-2-hydroxyphenyl)
Benzotriazole, 2- (3゜5-di-t-butyl-2-hydroxyphenyl)benzotriazole, 2-
(3-t-butyl-5-methyl-2-hydroxyphenyl)-5-chlorobenzotriazole, 2-(3,5-
Di-butyl-2-hydroxydiphenyl)-5-chlorobenzotriazole, 2-(2-hydroxy-3
,5-bis(α,α-dimethylbenzyl)phenyl-2H-benzotriazole, 2-(3゜5-di-t-
Examples include amyl-2-hydroxyphenyl)benzotriazole. The amount added is 0.1 to 5 parts by weight, preferably 0.2 to 4 parts by weight, and more preferably 0.2 to 4 parts by weight. 3～
It is 3 parts by weight.

There are no particular limitations on the method of adding the additives used in the present invention, but conventional means such as adding them to the resin using an extruder can be used.

The resin composition of the present invention may optionally contain other components such as pigments, dyes, reinforcing agents, fillers, heat stabilizers, antioxidants, nucleating agents, lubricants, plasticizers, mold release agents, etc. can be contained.

The acrylic resin composition of the present invention thus obtained can be processed by known methods generally used for molding thermoplastic resins, such as injection molding, extrusion molding, blow molding, and vacuum forming. The bottom can be shaped.

(Example) Next, the present invention will be explained in more detail with reference to Examples.
The present invention is not limited in any way by these examples.

In addition, each physical property of the composition and the elastomer was determined according to the following method.

(1) Tensile yield strength and tensile elongation at break: ASTM D
Using a 1/8 inch thick dumbbell piece according to 63B,
Measurement was performed at 23° C. and 155% RH.

However, since many elastomers do not have a yield point, the tensile yield strength and tensile elongation at break were measured in an absolutely dry state using a 1 mm thick dumbbell piece.

(2) Relative viscosity of elastomer: Measured in metacresol at 30° C. and 0.5 wt/vo 1%.

(3) Thermal decomposition temperature of elastomer: The weight loss temperature is indicated using a thermobalance at a heating rate of 10°C/
Measured in minutes.

(4) Light transmittance and haze Measured according to ASTM-1003. For the measurement, an NDH-1001DP haze meter manufactured by Nippon Heavy Industries, Ltd. was used.

(5) Yellowing degree and color difference: The yellowing degree is based on JISK7103, and the color difference is expressed according to the CIE1976L"a"b" color separation formula.

The measuring device is Color Analyzer TC manufactured by Tokyo Denden.
-1800MKI [was used.

(6) Electrostatic voltage test: 8KV with static honest meter (manufactured by Daisei Shokai)
An electrostatic voltage was applied, and after the voltage was removed, the time required for the charged voltage of the sample to be reduced by half was measured at 23° C. and 155% RH.

(7) Weather resistance test: Evaluation was performed by artificially accelerated exposure for 250 to 500 hours using a Sunshine Carbon Weather Meter WEL-3UN-HC manufactured by Suga Test Instruments ■.

10 equipped with a stirrer, nitrogen inlet and distillation tube
In a No. 42 SUS reaction vessel, 2.680 g of polyoxyethylene glycol (number average molecular weight 1.980), 259.4 g of trimellitic anhydride, and 1,707 g of caprolactam were added.
g and pentaerythrityl-tetrakis-[3-(3
, 5-di-t-phthyl-4-hydroxyphenyl) propionate] and tris(2,4-di-butylphenyl) phosphite (trade name Nylganox B225: M formation inhibitor) 8゜Prepare Og, 1
The pressure was reduced to ITorr at 00°C, and the mixture was stirred for 1 hour to remove moisture in the raw materials. After that, nitrogen was introduced to 300T.
While maintaining the pressure at orr, the temperature was raised to 260'C and polymerization was carried out for 4 hours, and the pressure was gradually reduced at the same temperature to distill off unreacted caprolactam.

Next, nitrogen was introduced again to maintain the pressure at 200 Torr, and a solution of 4.0 g of tetrabutyl orthotitanate dissolved in 100 g of caprolactam was added.
The pressure was reduced to orr, and polymerization was carried out at the same temperature for 7 hours. The obtained polymer was discharged onto a cooling belt and pelletized to obtain a pellet-shaped elastomer.

This elastomer is light brown and transparent, and has a polyoxyethylene glycol segment content of 67% by weight.
With a relative viscosity of 2.18, the tensile strength and elongation are each 3.
It was 10 kg/cd and 850%.

In addition, the thermal decomposition start temperature, 0% weight loss temperature, and 30% weight range low temperature of this elastomer are 353℃1, respectively.
It was 377'C, 394°C.

Production example 2' Ace Mar B2-Summer production stirrer, nitrogen inlet and distillation tube installed
In a 0 m separable flask, 144 g of polyoxyethylene glycol (number average molecular weight 2,010) and 13.7 g of trimellitic anhydride were added.

68.2 g of caprolactam and 0.4 g of poly(2,2゜4-trimethyl-1,2-dihydroquinoline) (trade name: Meclatku 224 antioxidant) were charged.
Reduce the pressure to below ITorr for 30 minutes while stirring at °C.
After dehydration, the nitrogen was flushed for 60-7 minutes.
After the temperature was raised to 0'C and polymerization was carried out for 4 hours, the pressure was gradually reduced at the same temperature to distill off unreacted caprolactam from the system.

Then 0.4 g of tetrabutyl titanate was added and IT
The pressure was reduced to o r r, and polymerization was carried out for 7 hours to obtain a pale yellow transparent elastomer.

This elastomer has a content of polyoxyethylene glycol segments of 72% by weight, a number average molecular weight of boria ξ toyline segments of 800, and a relative viscosity of 2.
25, tensile strength and elongation are 290kg/cdS120
It was 0%.

In addition, the thermal decomposition start temperature, 10% weight loss temperature, and 30% weight loss temperature of this elastomer are 350°C and 350°C, respectively.
The temperature was 425°C and 1443°C.

Note that the amount of water in the polymerization system 1.2.4 hours after starting the reaction at 260° C. was 0.7% by weight, 0.6% by weight, 1% by weight, and 0.6% by weight.

(Examples 1 to 4 and Comparative Examples 1 to 4) (1) Polyamideimide elastomer prepared above and (2) acrylic resin (manufactured by Asahi Kakai Kogyo ■, Delbent 8)
ON) at the blending ratio shown in Table 1, and each added sodium dodecylbenzenesulfonate (ON) as an additive.
DBS), hindered light stabilizer ((2,2,6
, 6-tetramethyl 4-piperidyl) sepacate; trade name Sanol LS770, manufactured by Sankyo ■), benzotriazole-based ultraviolet IL absorber (2-(5-methyl-2-hydroxyphenyl)benzotriazole; trade name Tinuvin P1)
(manufactured by Ciba Geigy) were blended in the indicated amounts, then melt-kneaded and extruded using a vented 40 mmφ extruder at a resin temperature of 250° C. to pelletize.

Next, an injection molding machine was used to reduce the cylinder temperature to 250°C.
A test piece for measuring physical properties was prepared at a mold temperature of 60'C and evaluated. The results are shown in Table-1.

The following can be seen from the results in Table 1.

All of the resin & II compound acids Examples 1 to 4) of the present invention are excellent in antistatic properties, transparency, and weather resistance.

That is, in either case, there is little weather resistance deterioration and excellent performance is exhibited.

(Effects of the invention) The thermoplastic resin and I-adhesive acid compound of the present invention are made by adding a hindered amine light stabilizer and a benzotriazole ultraviolet absorber to the thermoplastic resin and the acrylic resin and boria ξ toy elastomer. In addition to having excellent permanent antistatic properties, it also has good transparency and weather resistance. It is suitable for use in applications requiring the following.

Claims (4)

[Claims] (1) [1] (a) Acrylic resin 70 to 97% by weight,
and (b) (a) caprolactam, (b) at least one
at least one selected from aromatic tricarboxylic acids, aromatic tetracarboxylic acids, and acid anhydrides thereof capable of forming imide rings, and (c) polyoxyethylene glycol containing 50% by weight or more. It is obtained from oxyalkylene glycol, has a polyoxyalkylene glycol segment content of 40 to 85% by weight, and has a relative viscosity of 1 at a temperature of 30°C.
．． [2] At least one hindered amine light stabilizer 0
．． A thermoplastic resin composition containing 1 to 5 parts by weight or/and [3] 0.1 to 5 parts by weight of at least one benzotriazole ultraviolet absorber. (2) [1] (A) Acrylic resin 70 to 97% by weight,
and (B) (a) caprolactam, (b) at least 1
at least one selected from aromatic tricarboxylic acids, aromatic tetracarboxylic acids, and acid anhydrides thereof capable of forming imide rings, and (c) polyoxyethylene glycol containing 50% by weight or more. It is obtained from oxyalkylene glycol, has a polyoxyalkylene glycol segment content of 65 to 85% by weight, and has a relative viscosity of 1 at a temperature of 30°C.
．． [2] At least one hindered amine light stabilizer 0 per 100 parts by weight of a resin composition containing 30 to 3% by weight of a polyamideimide elastomer of 5 or more and having transparency.
．． A thermoplastic resin composition containing 1 to 5 parts by weight or/and [3] 0.1 to 5 parts by weight of at least one benzotriazole ultraviolet absorber. (3) [1] (A) Acrylic resin 70 to 97% by weight,
and (B) (a) caprolactam, (b) at least 1
at least one selected from aromatic tricarboxylic acids, aromatic tetracarboxylic acids, and acid anhydrides thereof capable of forming imide rings, and (c) polyoxyethylene glycol containing 50% by weight or more. It is obtained from oxyalkylene glycol, has a polyoxyalkylene glycol segment content of 40 to 85% by weight, and has a relative viscosity of 1 at a temperature of 30°C.
．． (C) aromatic sulfonic acid, alkyl sulfonic acid, organic carboxylic acid, organic phosphoric acid, alkali metal salts thereof, and At least one selected from alkaline earth metal salts.
[2] At least one hindered amine light stabilizer 0
．． A thermoplastic resin composition containing 1 to 5 parts by weight or/and [3] 0.1 to 5 parts by weight of at least one benzotriazole ultraviolet absorber. (4) [1] (A) Acrylic resin 70 to 97% by weight,
and (B) (a) caprolactam, (b) at least 1
at least one selected from aromatic tricarboxylic acids, aromatic tetracarboxylic acids, and acid anhydrides thereof capable of forming imide rings, and (c) polyoxyethylene glycol containing 50% by weight or more. It is obtained from oxyalkylene glycol, has a polyoxyalkylene glycol segment content of 65 to 85% by weight, and has a relative viscosity of 1 at a temperature of 30°C.
．． (C) aromatic sulfonic acid, alkyl sulfonic acid, organic carboxylic acid, organic phosphoric acid, alkali metal salts thereof, and alkali At least one selected from earth metal salts0
．． [2] At least one hindered amine light stabilizer 0
．． A thermoplastic resin composition containing 1 to 5 parts by weight or/and [3] 0.1 to 5 parts by weight of at least one benzotriazole ultraviolet absorber.