JP2002155207A - Thermoplastic resin composition and film comprising the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a polyester film for formation and processing, having excellent forming processability and beauty, suitably useful for formation and processing of lamination especially to a simple substance, metal, paper, nonwoven fabric, polymer material. SOLUTION: This thermoplastic composition is obtained by adding 1-60 wt.% of an acrylic compound to a thermoplastic polymer.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a thermoplastic composition and a film comprising the same. More specifically, the present invention relates to a thermoplastic composition having excellent weather resistance and moldability.

[0002]

2. Description of the Related Art Polyvinyl chloride has fluidity, viscoelasticity, and plasticity by containing a plasticizer because of its molecular skeleton.
It has been used as a polymer suitable for producing many molding materials from hard to soft materials, because it can greatly change the mechanical properties and the like. On the other hand, since chlorine is contained in the molecular skeleton, generation of dioxin or chlorine-containing gas as a combustion gas at the time of incineration has been taken up as a problem.

As substitutes for polyvinyl chloride, polyester, polyolefin, nylon and the like can be cited, but none of them have developed excellent processability like polyvinyl chloride.

As a method for improving the fluidity of a polymer, a method of adding a plasticizer, such as polyvinyl chloride, is known, and a plasticizer for polyester has been proposed, but its properties are not sufficient. Was.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems of the prior art, and has excellent molding workability, and in particular, processing such as embossing, vacuum forming and pressure forming. An object of the present invention is to provide a thermoplastic composition having excellent properties and a film comprising the same.

[0006]

The object of the present invention can be attained by providing a thermoplastic composition comprising a thermoplastic polymer and an acrylic compound in an amount of 1 to 60% by weight.

According to the present invention, as a result of intensive studies, a material suitable for molding can be obtained by adding 1 to 60% by weight of an acrylic compound to a thermoplastic polymer.

According to the present invention, it has been found that a molded product excellent in high-temperature molding processability during molding and whitening resistance (characteristics capable of preventing whitening during molding) can be obtained. An object of the present invention is to provide a thermoplastic composition having excellent moldability such as working, vacuum forming, pressure forming, and squeezing.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION The thermoplastic polymer of the present invention is:
Preferably polyester, polyolefin, nylon,
It is a high molecular polymer selected from polylactic acid.

From the viewpoint of improving the dispersibility of the acrylic compound, it is preferable that the thermoplastic polymer contains a copolymer component, and the copolymer component includes an ether group,
Components having polar or hydrogen bonding properties such as hydroxyl group, carboxylic acid group, sulfonic acid group, or hydroxyl group, carboxylic acid group, and metal salt of sulfonic acid group are preferably mentioned in terms of dispersibility and fluidity, and particularly workability. In terms of making it good,
It is preferable to contain 50% by weight or 1 to 50% by mole.

A plurality of the above-mentioned components may be used in combination.

In the present invention, polyester is preferable as the thermoplastic polymer from the viewpoint of heat resistance. Polyester is a generic term for a polymer having a main bond in the main chain as an ester bond, and is usually a dicarboxylic acid component. And a glycol component by a polycondensation reaction. Here, as the dicarboxylic acid component, for example, terephthalic acid, naphthalenedicarboxylic acid, isophthalic acid, diphenyldicane carboxylic acid, diphenylsulfonedicarboxylic acid,
Aromatic dicarboxylic acids such as diphenoxyethane dicarboxylic acid, 5-sodium sulfone dicarboxylic acid and phthalic acid, oxalic acid, succinic acid, adipic acid, sebacic acid, dimer acid, maleic acid, aliphatic dicarboxylic acids such as fumaric acid, cyclohexane Examples thereof include alicyclic dicarboxylic acids such as dicarboxylic acids and oxycarboxylic acids such as paraoxybenzoic acid. As the glycol component, for example, ethylene glycol, propanediol,
Aliphatic glycols such as butanediol, pentanediol, hexanediol and neopentyl glycol;
Examples thereof include polyoxyalkylene glycols such as diethylene glycol, polyethylene glycol and polypropylene glycol, alicyclic glycols such as cyclohexanedimethanol, aromatic glycols such as bisphenol A and bisphenol S, and isosorbide.

At this time, a plurality of the above-mentioned dicarboxylic acid components and / or glycol components may be used in combination as long as the characteristics of the present invention are not impaired.

In the present invention, the melting point of the thermoplastic polymer is preferably from 150 to 280 ° C., more preferably from 180 to 270 ° C., from the viewpoint of obtaining a film having both heat resistance and molding processability and having excellent beauty. Particularly preferably 20
Preferably it is 0-260 degreeC.

In particular, it is preferable that the main component of the acid component constituting the polyester is a terephthalic acid component and / or an isophthalic acid component in view of moldability and heat resistance. Further, it is preferable that 50 mol% or more is a terephthalic acid component and / or an isophthalic acid component. Among the glycol components, ethylene glycol, cyclohexane dimethanol and isosorbide are preferable in terms of heat resistance and moldability, and the main component of the glycol component constituting the polyester is selected from ethylene glycol, cyclohexane dimethanol and isosorbide. Is preferred. Preferably, 50 mol% or more is a component selected from ethylene glycol, cyclohexane dimethanol, and isosorbide.

The catalyst for producing the polyester of the present invention is not particularly limited, but may be an alkaline earth metal compound, a manganese compound, a cobalt compound, an aluminum compound, an antimony compound, a titanium compound, a titanium / silica composite oxide, a titanium / silica composite oxide. A zirconia composite oxide, a germanium compound, or the like can be used. Further, a phosphorus compound or the like can be used as a heat stabilizer.

The phosphorus compound added as a heat stabilizer to the polyester in the present invention is not particularly limited, but phosphoric acid and phosphorous acid are preferred.

Further, in order to improve the heat resistance and moldability of the polyester, it is desirable that the amount of the
And M is preferably 0.5 to 5, and more preferably 0.5 to 3, where M is P and millimol% of the phosphorus element of the phosphorus compound is P.

The polyester in the present invention preferably has a diethylene glycol component content of 0.01 to 5 mol%,
More preferably, the content is 0.01 to 3 mol% in order to reduce a change in color tone and a change in mechanical properties during high-temperature molding.

The intrinsic viscosity of the polyester is 0.5 to
The intrinsic viscosity is preferably 1.5, and particularly for applications requiring heat resistance and aging resistance, the intrinsic viscosity is preferably 0.6 to 1.0.

Among the polyolefins, those having ethylene or propylene units are preferable, and vinyl alcohol, methacrylic acid, acrylic acid and metal salts thereof are preferable as the copolymerization component. The copolymerization rate is preferably from 1 to 70% by weight, and more preferably from 1 to 60% by weight. A plurality of copolymer components may be selected.

As nylon, aliphatic polyamides such as polyamide 6, polyamide 12, polyamide 11, polyamide 6-6, polyamide 6-10 and polyamide 6-12, and various known aromatic polyamides can be used. These copolymers or mixtures can also be mentioned. The copolymerization component is not particularly limited, but a divalent or trivalent or higher carboxylic acid is preferable.
The copolymerization rate is preferably from 1 to 50% by weight, and more preferably from 1 to 45% by weight. A plurality of copolymer components may be selected.

Examples of polylactic acid include D-lactic acid homopolymer, L-lactic acid homopolymer, D-lactic acid / L-lactic acid copolymer, D-lactic acid / hydroxycarboxylic acid copolymer and mixtures thereof. The present invention is not limited to these. The polylactic acid is preferably composed mainly of an L-lactic acid component, and preferably has a D-lactic acid component content of 0 to 30% by weight in terms of heat resistance and heat shrinkage characteristics. Particularly preferably, the content of the D-lactic acid component is 0 to 20% by weight. The thermoplastic film of the present invention has a temperature of from 20 ° C. to a melting point of −60 from the viewpoint of improving moldability and impact resistance after molding. When the elongation at break in the longitudinal direction and the elongation at break in the width direction were measured at 0 ° C.
It is preferable to satisfy the following expression (1). More preferably, (S1 + S2) / 2 is at least 350%, particularly preferably at least 400%. (S1 + S2) / 2 ≧ 300% (1) In the present invention, it is necessary to blend an acrylic polymer with a thermoplastic polymer. The addition amount is in the range of 1 to 60% by weight, more preferably 2 to 4% by weight.
0% by weight, particularly preferably in the range of 5 to 30% by weight. If the amount is less than the lower limit of this range, sufficient characteristics cannot be exhibited. If the ratio exceeds this range, the production of the composition becomes unstable.

Here, the acrylic compound of the present invention may comprise at least 30% by weight of monomers such as acrylic acid and its salts, methacrylic acid and its salts, and in this case, only one kind may be used. It may be a homopolymer or a copolymer composed of two or more monomers. Also,
From the viewpoint of improving characteristics such as weather resistance, the amount is 50% by weight or more.

Specific examples of these acrylic acid monomers include methyl (meth) acrylate, ethyl (meth) acrylate, propyl (meth) allylate, isopropyl (meth) acrylate, and n- (meth) acrylate. -Butyl, isobutyl (meth) acrylate, s-butyl (meth) acrylate, t-butyl (meth) acrylate, neopentyl (meth) acrylate, ethylhexyl (meth) acrylate, isodecyl acrylate, (meth) acryl Lauryl acrylate, tridecyl (meth) acrylate, stearyl (meth) acrylate, benzyl (meth) acrylate, (meth)
Tetrahydrofurfuryl acrylate, methoxyethyl (meth) acrylate, dimethylaminoethyl (meth) acrylate, chloroethyl (meth) acrylate, trifluoroethyl (meth) acrylate, heptadecafluorooctylethyl (meth) acrylate, Isobornyl (meth) acrylate, adamantyl (meth) acrylate, tricyclodecynyl (meth) acrylate and the like can be mentioned.

Further, it is possible to introduce a copolymer component into the acrylic compound. For example, a styrene monomer can be preferably used. At this time, the copolymerization amount can be any amount of 70 mol% or less.

When a copolymer is used as the acrylic compound, it may be in the form of a block copolymer, a random copolymer, a graft copolymer, or any combination thereof.

Number average molecular weight (Mn) of acrylic compound
Is preferably 800 to 20,000, more preferably 800 to 10000, particularly preferably 1000
~ 5000. When the molecular weight is larger than the above range, the dispersibility of the acrylic compound is deteriorated, and when the molecular weight is smaller than the above range, problems such as bleed-out are easily caused, which is not preferable.

The ratio (Mw / Mn) of the weight average molecular weight (Mw) to the number average molecular weight (Mn) of the acrylic compound is preferably from 1 to 2.5 from the viewpoint of improving properties such as processability and beauty. Yes, more preferably 1-2, particularly preferably 1-1.8.

With respect to the polymerization method for controlling the Mw / Mn within a predetermined range, Japanese Patent Publication No. 2-33041 and Japanese Patent Publication No.
No. 58005, Japanese Patent Publication No. 5-61284, and the like disclose techniques using bulk polymerization, and these techniques and the obtained compounds can be preferably applied.

The melting point of the acrylic compound is preferably 120 ° C. or less from the viewpoint of improving workability and improving low-temperature characteristics (workability at low temperatures and impact resistance).
In order to improve the low-temperature characteristics, the temperature is more preferably 80 ° C or lower, particularly preferably 20 ° C or lower.

The acrylic compound has a hydroxyl group amount of 50 (KO).
H mg / g) or less, more preferably 20 (KOH
mg / g) or less, particularly preferably 10 (KOH mg / g) or less. The carboxylic acid group is 50 (KOH mg / g) or less, more preferably 20 (KOH mg / g).
(KOH mg / g) or less, particularly preferably 10 (KOH mg / g) or less. There is no particular lower limit on the amount of these preferred hydroxyl groups and carboxylic acid groups, and a smaller amount is preferred from the viewpoint of improving the fluidity of the resin and suppressing the generation of foreign matter.

In the present invention, the molding processability of the composition,
From the viewpoint of handling and coloring properties, it is preferable to add particles to the film, and it is preferable to add particles having a particle size of 0.01 to 30 μm, particularly 0.01 to 10 μm.
Those having a particle size of m are preferred. It is preferable to add 0.001 to 70% by weight as an addition amount,
More preferably, it is 0.1 to 60% by weight.

Specifically, as inorganic particles, wet and dry silica, wet silica, colloidal silica, aluminum silicate, titanium oxide, calcium carbonate, calcium phosphate, barium sulfate, alumina, mica, kaolin,
Clay and the like, and aluminum silicate, colloidal silica, and the like are preferable from the viewpoint of surface forming properties.

As the organic particles, various organic polymer particles can be used, and as the type thereof, any particles can be used as long as the particles are at least partially insoluble in the thermoplastic polymer used. As the material of such particles, various materials such as polyimide, polyamide imide, polymethyl methacrylate, formaldehyde resin, phenol resin, cross-linked polystyrene, silicone resin and a mixture thereof, a copolymer resin can be used. Particularly preferred are vinyl-based crosslinked polymer particles having high heat resistance and capable of easily obtaining particles having a uniform particle size distribution.

Further, various kinds of conventionally known pigments and / or dyes can be added to the composition, if necessary.

From the viewpoint of improving the beauty, it is preferable to use a filter for cutting coarse particles and foreign substances of 30 μm or less, particularly a filter for cutting 20 μm or less when the thermoplastic composition is melt-extruded. Is desirable.

Examples of the method of adding the acrylic compound include a method of batch addition before or after the polymerization reaction, a method of using a vented extruder, and a method of adding from a screw or a pipe wall using a liquid feed pump. .

The thermoplastic composition of the present invention can be suitably used after being extruded into a film. In this case, at least one surface of the layer (A layer) made of the thermoplastic composition containing the acrylic compound in terms of processability and antifouling property, has a low content of the acrylic compound or substantially contains the acrylic compound. Layer of thermoplastic polymer (B
Layer) is also preferred.

The thickness of the layer B is not particularly limited.
μm, and more preferably 0.01 to 5 μm. The lamination structure is not particularly limited,
A / B, B / A / B, and A / B / A are preferable, and A / B and B / A / B are particularly preferable in terms of antifouling properties.

The thickness of the film as an embodiment of the present invention is not particularly limited, but is 8 in terms of moldability and heat resistance.
To 1000 μm, more preferably 10 to 500 μm, and particularly preferably 15 to 300 μm.
It is.

The method for producing a film in the present invention is not particularly limited. For example, a polyester is supplied to a bent twin-screw extruder (three vents) and passed through two vacuum vents to melt the polyester. , 100
The plasticizer heated to ℃ is measured with a plunger pump and added and kneaded with a screw segment that does not flow back into the polyester, the melting temperature of the polyester is lowered by about 30 ° C, and after passing through a vacuum vent, it is passed through a short tube. Polyester B is melted in the same manner, and compounded at the pinol portion,
The die land and the lower part of the die are extruded into a sheet shape from a slit die made of a material honed to amorphous chrome (surface roughness 0.2S), adhered to a casting drum by an electrostatic application method, cooled and solidified to obtain an unstretched sheet. .

If necessary, the unstretched sheet may be stretched and heat-treated in the longitudinal direction and / or the width direction of the film. The stretching method is preferably a tenter method in terms of film quality, and after stretching in the longitudinal direction, successively biaxial stretching method of stretching in the width direction, stretching in the longitudinal direction and the width direction almost simultaneously. A simultaneous biaxial stretching method is desirable. The stretching ratio is 1.5 to 5.0 times, preferably 1.5 to 4.0 times in each direction. Either the stretching ratio in the longitudinal direction or the stretching ratio in the width direction may be increased, and may be the same. The stretching speed is 1000
% / Min to 1,000,000% / min,
In particular, it is preferable to form a film at a longitudinal stretching speed of 300,000% / min or less. The stretching temperature may be any temperature as long as it is 100 ° C. or more and 150 ° C. or less, but is preferably glass transition temperature + 20 ° C. to 60 ° C.

Further, after this, a heat treatment of the film can be performed if necessary.
It can be carried out by any conventionally known method, such as on a heated roll.

The heat treatment temperature can be any temperature between 60 ° C. and 250 ° C., preferably between 150 ° C. and 250 ° C.
40 ° C. The heat treatment time can be arbitrarily set, but is preferably 0.1 to 60 seconds, more preferably 1 to 20 seconds. The heat treatment may be performed while relaxing the film in its longitudinal direction and / or its width direction.
Further, re-stretching may be performed once or more in each direction, and then heat treatment may be performed.

The obtained film is 25 ° C. in view of processability.
Is preferably 1 to 2000 MPa, and more preferably 10 to 1000 MPa.

Further, it is preferable to apply a surface treatment such as a corona discharge treatment to the film surface from the viewpoint of further improving the adhesiveness. The surface tension is preferably 45 mN / m or more, and particularly preferably 50 mN / m or more.

The film of the present invention may be coated with various coatings, and the coating compound, method, and thickness are not particularly limited as long as the effects of the present invention are not impaired.

Further, the heat shrinkage when the film is heat-treated at 120 ° C. for 30 minutes is preferably 5% or less from the viewpoint of improving moldability and printability. More preferably 4%
Or less, particularly preferably 3% or less.

In the present invention, it is preferable to mold and process a simple substance, a metal or a non-metal material, but it is preferable to use steel, aluminum or an alloy for a metal, paper or a non-metal material.
Nonwoven fabric, glass, and polymer materials are preferred.
Further, an adhesive layer, a printing layer, and the like may be formed between a metal and a non-metal material in the laminated structure. Forming methods include laminating, vacuum forming, pressure forming,
One or a plurality of forming processes such as vacuum pressure forming, drawing forming, and bending forming may be performed, and the forming method is not particularly limited.

When used alone, one or more molding processes such as vacuum molding, air pressure molding, vacuum pressure molding, draw molding, bending molding, and overhang molding may be performed, and the molding method is not particularly limited. Not done.

[0052]

The present invention will be described below in detail with reference to examples. The characteristics were measured and evaluated by the following methods. (1) Amount of catalytic metal element, amount of phosphorus element, M / P The film was heated to a melting point of + 20 ° C. and melted to form a circular disk.
The phosphorus element amount was determined. In determining the amount, a calibration curve of X-ray fluorescence obtained from a sample in which the amount of each metal element added was changed in advance was used.

The metal component due to the particles in the film was determined by removing the component. In addition, as a method of removing particles, for example, the film is dissolved in a good solvent heated to 80 to 100 ° C., centrifuged, the particles are removed, and the polymer in the solution is precipitated. There is a way to do it.

In the case of a laminated film, each layer was separated and obtained by scraping. M / P was obtained by defining M as the mmol% of the catalytic metal element and P as the mmol% of the phosphorus element amount. (2) Modulus of elasticity (MPa) Measured at 25 ° C. using Tensilon (tensile tester). Pulling speed 300mm / min, width 10
The elastic modulus (MPa) in each of the longitudinal direction and the width direction of the film was measured at five points, with the sample length being 50 mm and the sample length being 50 mm. (3) Embossing processability A thermoplastic film is prepared, printed, thermally bonded to a metal plate, and heated by roll heating (100 to 140 ° C.) and immediately before heating by condensing radiation to heat the thermoplastic film side. Embossing roll (30 μm height irregularities, 1 μm
After passing through the cooling roll (40).
° C). The embossability of the obtained film was determined as follows. The beauty was determined based on no color change, no wrinkles and no glare.

A: The uneven shape of the embossing roll, both large and small, was favorably formed on the film side. Good beauty.

：: A large portion of the embossing roll having a large unevenness was favorably formed on the film side. Almost no change in beauty.

Δ: The unevenness of the embossing roll is formed on the film side, but the unevenness is slightly shallow. A change in beauty is also observed.

×: The embossing roll has an uneven shape on the film side, but the unevenness is shallow and the change in beauty is large. (4) Vacuum air pressure moldability A film was prepared, a PET nonwoven fabric was adhered to the film with a urethane-based adhesive, and vacuum air pressure air molding was performed at 80 to 150 ° C. The best conditions were determined as follows.

：: good moldability without uneven thickness and whitening

Δ: Almost no uneven thickness and whitening, good moldability.

×: Uneven thickness: whitening was observed, and moldability was poor. (5) Molecular weight of acrylic compound (Mw, Mn) Measurement was performed by gel permeation chromatography (GPC method). <Acrylic compound> A compound having a composition and a molecular weight shown in Table 1 was prepared. Here, the composition C in the table has a low amount of the acrylic monomer of 15% by weight, which is out of the range of the acrylic compound according to the present invention.

[0062]

[Table 1]

The abbreviations in the table are as follows: AMS: α-methylstyrene S: styrene AA: acrylic acid 2-EHA: 2-ethylhexyl acrylate <Thermoplastic polymer> A plastic polymer was prepared. Polymer A: polyethylene terephthalate (PET) Polymerization was performed using a calcium compound catalyst, an antimony compound catalyst, phosphoric acid (M / P = 2.0) and colloidal silica particles (average diameter 1.5 μm) as particles. (Intrinsic viscosity: 1.0) Polymer B: Cyclohexane dimethanol 30 mol% copolymerized PET (PET / CHDM) Only terephthalic acid was used as the acid component of the polyester, the glycol component was 70 mol% of ethylene glycol, and cyclohexane dimethanol (CHDM) ) (Intrinsic viscosity: 0.8). Polymer C: polylactic acid (PLA) A D-lactic acid / L-lactic acid copolymer obtained by copolymerizing 80 mol% of D-lactic acid and 20 mol% of L-lactic acid was used. Example 1 Polymer A was supplied to a vent-type twin-screw extruder (three vent portions), and was melted at 270 ° C. through two vacuum vent portions. Further, acrylic A was added at the next vent. The sheet extruded from a slit die (hard chrome plating, honing, maximum surface roughness of 1.1 μm) is brought into close contact with the casting drum by an electrostatic application method, cooled and solidified, and the edge is removed with a slit. ,
A film roll was created in the winding process.

The properties of the obtained film are as shown in Table 2, and were extremely excellent.

[0065]

[Table 2]

Examples 2 to 4 Film formation was carried out in the same manner as in Example 1 using the combinations of acrylic and polymer shown in Table 2, respectively. The properties of the obtained film are as shown in Table 2. Example 5 (Laminated Film) Layer A: Polymer B was supplied to a vented twin-screw extruder (three vents) and passed through two vacuum vents to obtain 270.
Melted at ℃. Further, acrylic A was added at the next vent.

Layer B: Separately, polymer A was melted by a twin-screw extruder.

Each molten polyester is compounded through a pinol, extruded into a sheet from a slit die (hard chrome plating, honing, maximum surface roughness 1.1 μm), and adhered to the casting drum by an electrostatic application method. Cool and solidify, remove the edge part with a slit,
A film roll was created in the winding process. The film thickness is 100 μm. The laminated structure is B layer / A layer / B layer and the lamination ratio is 1: 18: 1.

The resulting film did not show bleed-out even after a lapse of 1 hour at 80 ° C., had excellent surface properties, and had other excellent properties as shown in Table 2.

Example 6 (Biaxially stretched film) An unstretched film obtained in the same manner as in Example 1 was formed into a film by a tenter-type sequential biaxially stretching machine. The conditions at that time were a longitudinal stretching temperature of 102 ° C., a longitudinal stretching ratio of 3.1 times, a transverse stretching temperature of 115 ° C., a transverse stretching ratio of 2.7 times, and a heat treatment temperature of 182.
° C, relax 4%. The film thickness is 50
The resin extrusion amount was adjusted to be μm. Table 2 shows the film properties.

Comparative Examples 1 and 2 Films were formed in the same manner as in Example 1 using the polymers and compositions C shown in Tables 1 and 2. The obtained film had a thickness of 100 μm. Table 2 shows the film properties.
All were inferior in moldability.

In particular, in Comparative Example 2, melt extrusion was not stable, and a film could not be formed.

[0073]

Industrial Applicability The thermoplastic composition and film of the present invention are excellent in molding workability and beauty when laminated with a simple substance or a metal or nonmetallic material, and are suitably used for many molding processing materials. be able to.

Continued on the front page F-term (reference) 4F071 AA02 AA31 AA43 AB26 BB06 BC01 BC10 4F100 AA20H AK01A AK01B AK01C AK25A AK25B AK25C AK41A AK41B AK41C AK42 AK51 AK51H AL05A07BA01 BA07 DE02 BA07 BA07 JB16A JB16B JB16C JL01 JL09 YY00A YY00B YY00C 4J002 BB04W BB08W BB10W BB14W BC03Y BG04X BG05X BG06X BG06Y CC01Y CC03Y CF03W CF05W CF06W CF07W CF10W CF18DE03 CL016DEW CL02W016

Claims (9)

[Claims] An acrylic compound is added to a thermoplastic polymer.
A thermoplastic composition containing up to 60% by weight. 2. The number average molecular weight (Mn) of an acrylic compound
Is between 800 and 20,000.
4. The thermoplastic composition according to item 1. 3. The weight average molecular weight (M) of the acrylic compound
w) and the number average molecular weight (Mn) ratio (Mw / Mn) is 1 to
3. The thermoplastic composition according to claim 1, wherein the composition is 2.5. 4. The thermoplastic composition according to claim 1, wherein the thermoplastic polymer is a polyester. 5. The thermoplastic composition according to claim 1, wherein the thermoplastic polymer is polylactic acid. 6. The method according to claim 6, wherein the particles having a particle diameter of 0.01 to 30 μm
The composition according to claim 1, wherein the content is from 01 to 70% by weight.
5. The thermoplastic composition according to any one of 5. 7. A film comprising the thermoplastic composition containing the acrylic compound according to claim 1 as a constituent. 8. A thermoplastic polymer (B layer) containing a small amount of an acrylic compound or substantially containing no acrylic compound is laminated on at least one surface of the film (A layer) according to claim 7. A film comprising: 9. The film according to claim 7, wherein the film has an elastic modulus at 25 ° C. of 1 to 2000 MPa.