JP2001011251A - Compatibilizing agent for polyolefin resin alloy and method for improving compatibility - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a compatibilizing agent for polyolefin resin alloy capable of improving the compatibility between a polyolefin resin and other type of thermoplastic resin and also a method for improving the compatibility. SOLUTION: This compatibilizing agent for polyolefin resin alloy comprises particles of polytetrafluoroethylene having its content of 0.5 to 80 wt.% based on the total weight and having a particle size of 10 μm or below, and an organic polymer. When the compatibilizing agent is compounded in a mixture of a polyolefin resin and other type of thermoplastic resin in an amount of 0.1 to 50 pts.wt. per 100 pts.wt. of the resin mixture, the compatibility of the polyolefin resin alloy is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a compatibilizer for an olefin resin alloy and a method for improving the compatibility thereof.

[0002]

2. Description of the Related Art Generally, polyolefin resins are widely used in various fields because of their excellent mechanical properties and chemical properties. Further, it is desired to impart functions by alloying with other thermoplastic resins. However, polyolefin resins have poor compatibility with other thermoplastic resins and have a drawback that they are difficult to mix. However, at present, there is no method for sufficiently improving this disadvantage.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to provide a compatibilizer for a polyolefin resin alloy which can improve the compatibility between a polyolefin resin and another thermoplastic resin, and a method for improving the compatibility thereof. Is to do.

[0004]

The present inventors have conducted intensive studies to solve the above-mentioned problems, and as a result, have found that the polytetrafluoroethylene content is 0.5 to 80% by weight, and that the particle diameter is 1%.
By adding a polytetrafluoroethylene-containing mixed powder composed of polytetrafluoroethylene particles of 0 μm or less and an organic polymer, it has been found that the compatibility between the polyolefin resin and other thermoplastic resins is improved. ,
The present invention has been reached.

[0005] The present invention relates to a polyolefin-based polyolefin comprising polytetrafluoroethylene particles having a polytetrafluoroethylene content of 0.5 to 80% by weight based on the total weight and having a particle diameter of 10 µm or less and an organic polymer. Provided is a compatibilizer for a resin alloy. The present invention also provides a polyolefin resin alloy compatibilizer, which is added to a mixture of a polyolefin resin and another thermoplastic resin in an amount of 0.1 to 50 parts by weight based on 100 parts by weight of the resin mixture. And a method for improving the compatibility of a polyolefin resin alloy.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Polyolefin resins used in the present invention include, for example, polypropylene (PP),
High density polyethylene (HDPE), low density polyethylene (LDPE), linear low density polyethylene (LLDP)
E), poly-1-butene, polyisobutylene, a random copolymer or block copolymer comprising propylene and ethylene and / or a monomer copolymerizable therewith and / or a crosslinkable monomer, ethylene and propylene Cyclic polyolefins such as ethylene-propylene-diene terpolymer, polymethylpentene, and copolymers of cyclopentadiene with ethylene and / or propylene, wherein the diene component is 50% by weight or less in all proportions with
Random copolymers, block copolymers or grafts of ethylene or propylene with not more than 50% by weight of vinyl compounds such as vinyl acetate, alkyl methacrylate, acrylate, aromatic alkyl ester, and aromatic vinyl Polymers and the like can be mentioned, and these can be used alone or in combination of two or more. Further, a compatibilizer such as a graft copolymer can be used in combination. The method for producing the polyolefin resin is not particularly limited. The stereoregularity of the polyolefin-based resin is not particularly limited, and includes those having low isotacticity to those having high stereoregularity isotactic or syndiotactic produced by using a metallocene catalyst.

In the present invention, the polyolefin resins include PP, HDPE, LDPE and LLDP.
At least one selected from the group consisting of E, ethylene-propylene random and block copolymers is preferred in that it has high versatility and is inexpensive. Further, the MFR of the polyolefin resin is not particularly limited. As the thermoplastic resin other than the polyolefin-based resin, a generally known resin can be used. For example, styrene resins such as polystyrene (PS) and styrene / acrylonitrile copolymer resin (SAN), acrylic vinyl polymers such as polymethyl methacrylate (PMMA), polyvinyl chloride resin (PVC), and polyphenylene ether resin (PPE) and its modified products, aromatic polyester resins (PET, PBT), polycarbonate resins (PC), polyamide resins (PA) such as polycaproamide (nylon 6), polyhexamethylene adipamide (nylon 66), etc. Is mentioned. Further, these may be used in combination of two or more kinds of components. Further, a recycled resin of the above resin can be used. In particular, recycled polyethylene terephthalate-based resins and recycled polystyrene-based resins are examples of such recycled resins.

The compatibilizer for a polyolefin-based resin alloy according to the present invention comprises polytetrafluoroethylene particles having a polytetrafluoroethylene content of 0.5 to 80% by weight based on the total weight and having a particle diameter of 10 μm or less, and an organic polymer. 10 μm of polytetrafluoroethylene in the powder
It is necessary that the above aggregates do not form. As such a polytetrafluoroethylene-containing mixed powder, an aqueous dispersion of polytetrafluoroethylene particles having a particle diameter of 0.05 to 1.0 μm and an aqueous dispersion of organic polymer particles are mixed, and solidified or mixed. What is obtained by pulverization by spray drying, after polymerizing the monomer constituting the organic polymer in the presence of an aqueous dispersion of polytetrafluoroethylene particles having a particle diameter of 0.05 to 1.0 μm, coagulation Or those obtained by pulverization by spray drying, or in a dispersion obtained by mixing an aqueous dispersion of polytetrafluoroethylene particles and an aqueous dispersion of organic polymer particles having a particle diameter of 0.05 to 1.0 μm. It is preferably obtained by subjecting a monomer having an ethylenically unsaturated bond to emulsion polymerization, and then coagulating or spray-drying to obtain a powder.

The particle size of the polyolefin resin alloy used in the present invention for obtaining a compatibilizing agent for a polyolefin resin alloy is from 0.05 to 0.05.
An aqueous dispersion of 1.0 μm polytetrafluoroethylene particles is obtained by polymerizing a tetrafluoroethylene monomer by emulsion polymerization using a fluorinated surfactant. At the time of emulsion polymerization of polytetrafluoroethylene particles, as long as the properties of polytetrafluoroethylene are not impaired, hexafluoropropylene, chlorotrifluoroethylene, fluoroalkylethylene, perfluoroalkylvinylether and other fluorinated olefins as copolymerization components And fluorinated alkyl (meth) acrylates such as perfluoroalkyl (meth) acrylate. The content of the copolymer component is preferably 10% by weight or less based on the weight of tetrafluoroethylene.

Aqueous dispersions of polytetrafluoroethylene particles are commercially available, such as Fluon AD-1, AD-936 manufactured by Asahi ICI Fluoropolymer, Polyflon D-1, D-2 manufactured by Daikin Industries, and Mitsui. Representative examples include Teflon 30J manufactured by DuPont Fluorochemicals. The organic polymer constituting the compatibilizing agent for the polyolefin-based resin alloy in the present invention is not particularly limited, but from the viewpoint of dispersibility when blended into the polyolefin-based resin, has an affinity with each resin. Is preferably high.

Specific examples of the monomer for producing such an organic polymer include styrene, α-methylstyrene,
p-methylstyrene, o-methylstyrene, t-butylstyrene, o-ethylstyrene, p-chlorostyrene,
o-chlorostyrene, 2,4-dichlorostyrene, p-
Aromatic vinyl monomers such as methoxystyrene, o-methoxystyrene and 2,4-dimethylstyrene; methyl acrylate, methyl methacrylate, ethyl acrylate, ethyl methacrylate, butyl acrylate, butyl methacrylate, acrylic acid -2-ethylhexyl, methacrylic acid-
(Meth) acrylate monomers such as 2-ethylhexyl, dodecyl acrylate, dodecyl methacrylate, tridecyl acrylate, tridecyl methacrylate, octadecyl acrylate, octadecyl methacrylate, cyclohexyl acrylate, and cyclohexyl methacrylate;
Vinyl cyanide monomers such as acrylonitrile and methacrylonitrile; α, β-unsaturated carboxylic acids such as maleic anhydride; maleimide monomers such as N-phenylmaleimide, N-methylmaleimide and N-cyclohexylmaleimide Glycidyl group-containing monomers such as glycidyl methacrylate; vinyl ether monomers such as vinyl methyl ether and vinyl ethyl ether; vinyl carboxylate monomers such as vinyl acetate and vinyl butyrate; ethylene, propylene, isobutylene and the like Olefin-based monomers; and diene-based monomers such as butadiene, isoprene, and dimethylbutadiene. These monomers can be used alone or as a mixture of two or more.

Among these monomers, aromatic vinyl monomers and (meth) acrylate monomers are preferred from the viewpoint of imparting affinity, coloring properties and adhesion to the polyolefin resin. And vinyl cyanide monomers. The content of polytetrafluoroethylene in the compatibilizer for polyolefin-based resin alloy according to the present invention is 0.5 to 80% by weight based on the total weight. If the amount is less than 0.5% by weight, the compatibilizing effect is insufficient, and if it exceeds 80% by weight, the dispersibility is poor and the surface appearance is insufficient.

The compatibilizing agent for a polyolefin-based resin alloy according to the present invention is obtained by charging an aqueous dispersion thereof into hot water in which metal salts such as calcium chloride and magnesium sulfate are dissolved.
After salting out and coagulating, it can be dried or powdered by spray drying. Normal polytetrafluoroethylene fine powder is difficult to uniformly disperse in olefin-based resin because it becomes an aggregate of 100 μm or more in the process of recovering as powder from the state of particle dispersion. The compatibilizer for a polyolefin-based resin alloy according to the present invention is extremely excellent in dispersibility in a polyolefin-based resin because polytetrafluoroethylene alone does not form a domain having a particle diameter of more than 10 μm. As a result, the compatibilizing agent for a polyolefin-based resin alloy of the present invention is such that polytetrafluoroethylene is efficiently fiberized in the polyolefin-based resin, and imparts compatibility between the alloy resins, and also has excellent surface properties. It will be.

The method for improving the compatibility of a polyolefin resin alloy according to the present invention is a method for improving the compatibility of a polyolefin resin alloy with another thermoplastic resin. Is included so as to be 0.1 to 50 parts by weight.
If the compatibilizing agent for the polyolefin resin alloy is less than 0.1 part by weight, the effect of improving the compatibility is poor, and if it exceeds 50 parts by weight, the surface appearance is significantly deteriorated.

In carrying out the method for improving the compatibility of a polyolefin resin alloy of the present invention, the compatibilizing agent for a polyolefin resin alloy of the present invention may be directly added to the above resin mixture. Alternatively, the compatibilizing agent for a polyolefin-based resin alloy of the present invention is melt-kneaded with a part of a polyolefin-based resin or another thermoplastic resin to form a master pellet, and this master pellet is used as a balance for the remaining polyolefin-based resin and other thermoplastic resins. You may mix | blend with the alloy with a resin.

The polyolefin-based resin alloy obtained by the method for improving the compatibility of a polyolefin-based resin alloy of the present invention contains pigments, dyes,
Reinforcing agents and fillers such as glass fibers, metal fibers, metal flakes and carbon fibers, 2,6-di-butyl-4-methylphenol, 4,4'-butylidene-bis (3-methyl-6
Phenolic antioxidants such as -t-butylphenol), tris (mixed, mono- and dinylphenyl)
Phosphites, phosphite-based antioxidants such as diphenyl / isodecyl phosphite, sulfur-based antioxidants such as dilauryl thiodipropionate, dimyristyl thiodipropionate, and diasterial thiodipropionate; 2-hydroxy- Benzotriazole UV absorbers such as 4-octoxybenzophenone and 2- (2-hydroxy-5-methylphenyl) benzotriazole, and photostables such as bis (2,2,6,6-tetramethyl-4-piperidinyl) Agents, hydroxylalkylamines, antistatic agents such as sulfonates, lubricants such as ethylenebisstearylamide, metal soaps, and tetrabromophenol A, decabromophenol oxide, T
By appropriately blending various additives such as a flame retardant such as a BA epoxy oligomer, a TBA polycarbonate oligomer, antimony trioxide, TPP, and a phosphate ester, a product having more desirable physical properties and characteristics can be obtained. Further, another compatibilizer may be used in combination.

A predetermined amount of each of the above essential components and desired components is blended and kneaded with a usual kneader such as a roll, a Banbury mixer, a single screw extruder or a twin screw extruder to prepare a polyolefin resin alloy. However, it is usually preferable to form the resin alloy into a pellet. Further, in this case, a polyolefin-based resin alloy may be prepared by preparing a master batch containing a polyolefin-based resin alloy compatibilizer at a high concentration and diluting the master batch with a polyolefin-based resin and another thermoplastic resin. .

The polyolefin-based resin alloy thus obtained can be molded by various molding methods, and the molded product obtained is excellent in compatibility, free of macro aggregates of polytetrafluoroethylene, and has excellent surface properties. Is also excellent. The processing method of such a polyolefin-based resin alloy is not particularly limited, but injection molding, calendar molding,
Examples include blow molding, extrusion molding, thermoforming, foam molding, and melt spinning.

The molded article thus obtained is not particularly limited, but may be an injection molded article, a sheet, a film, a hollow molded article, a pipe, a square bar, a deformed product, a thermoformed article, a foam, a fiber, or the like. Can be mentioned.

[0020]

EXAMPLES The present invention will be described in more detail with reference to the following examples, which should not be construed as limiting the invention thereto. In the description of the examples, “parts” and “%” are shown by weight, and various physical properties are measured by the following methods.

(1) Solid concentration: 170 ° C. of the particle dispersion
And dried for 30 minutes. (2) Particle size distribution, weight average particle size: A particle dispersion diluted with water was used as a sample liquid and subjected to dynamic light scattering (ELS800, manufactured by Otsuka Electronics Co., Ltd., temperature 25 ° C., scattering angle 90 °). It was measured. (3) Zeta potential: 0.01 mol / l of N
The solution diluted with the aCl aqueous solution was used as a sample solution and measured by electrophoresis (ELS800, manufactured by Otsuka Electronics Co., Ltd., temperature: 25 ° C., scattering angle: 10 °).

(4) Peeling surface impact strength: 30 mm in the same direction 2
Pellets were formed using a screw extruder, and test pieces (thickness: 1 mm) were formed using a 30 mm single screw extruder, and the delamination or breaking height was measured using a DuPont impact tester (500 g load). The measurement conditions were a temperature of 23 ° C and a humidity of 50.
%. Unit (cm) (5) Compatibility: 0.1 parts by weight of Bengala was added to the mixture,
Pelletize using a 30 mm co-rotating twin screw extruder.
A test piece (thickness: 1 mm) was molded using a mm-single-screw extruder, and the coloring unevenness of the molded product was visually evaluated according to the following criteria.

：: A molded article having a uniform color tone without coloring unevenness is obtained. Δ: Slight coloring unevenness is observed. X: Colored portion and non-colored portion can be clearly distinguished. (6) Appearance: Use a 75-ton injection molding machine. A test piece was molded using the sample, and the surface appearance of the molded product was evaluated according to the following criteria.

：: Smooth and good appearance △: Slight surface roughness observed ×: Severe surface roughness and poor appearance Reference Example 1 <Polytetrafluoroethylene-containing powder (A-
Production of 1)> In a separable flask equipped with a stirring blade, a condenser, a thermocouple, and a nitrogen inlet, 190 parts of distilled water, 1.5 parts of sodium dodecylbenzenesulfonate, 100 parts of methyl methacrylate, and 0.5 part of cumene hydroperoxide. And heated to 40 ° C. under a nitrogen stream. Next, iron sulfate (I
I) 0.001 part, disodium ethylenediaminetetraacetate 0.003 part, Rongalit salt 0.24 part, distilled water 1
0 parts of the mixture was added to initiate radical polymerization. After the end of the heat generation, the temperature in the system was maintained at 40 ° C. for 1 hour to complete the polymerization to obtain a polymethyl methacrylate polymer particle dispersion (hereinafter, referred to as P-1).

The solid content concentration of P-1 is 33.3%,
The particle size distribution shows a single peak, and the weight average particle size is 9
At 6 nm, the surface potential was -32 mV. On the other hand, as a dispersion of polytetrafluoroethylene-based particles, Asahi IC
Fluon AD936 manufactured by I Fluoropolymers was used.
AD936 has a solids concentration of 63.0% and contains 5 parts of polyoxyethylene alkylphenyl ether per 100 parts of polytetrafluoroethylene.
The particle size distribution of AD936 showed a single peak, the weight average particle size was 290 nm, and the surface potential was -20 mV.

Distilled water 1 was added to 833 parts of Fluon AD936.
167 parts were added to obtain a polytetrafluoroethylene particle dispersion F-1 having a solid content concentration of 26.2%. F-1 is 2
It contains 5% polytetrafluoroethylene particles and 1.2% polyoxyethylene nonylphenyl ether. 160 parts of F-1 (40 parts of polytetrafluoroethylene) and 181.8 parts of P-1 (60 parts of polymethyl methacrylate) were placed in a separable flask equipped with a stirring blade, a condenser, a thermocouple, and a nitrogen inlet. It was charged and stirred at room temperature for 1 hour under a nitrogen stream. Thereafter, the inside of the system was heated to 80 ° C. and kept for 1 hour. No solid matter was separated through a series of operations, and a uniform particle dispersion was obtained. The solid content concentration of the particle dispersion was 29.3%, the particle size distribution was relatively broad, and the weight average particle size was 168 nm.

341.8 parts of this particle dispersion is charged into 700 parts of 85 ° C. hot water containing 5 parts of calcium chloride to separate a solid, filtered and dried to obtain a mixed powder containing polytetrafluoroethylene. (A-1) 98 parts were obtained. After A-1 was shaped into a strip shape at 250 ° C. by a press molding machine, ultrathin sections were observed with a microtome without staining using a transmission electron microscope. Although polytetrafluoroethylene was observed as a dark part, no aggregate exceeding 10 μm was observed.

Reference Example 2 <Production of polytetrafluoroethylene-containing mixed powder (A-2)> A separable flask equipped with a stirring blade, a condenser, a thermocouple, a nitrogen inlet, and a dropping funnel was used in Reference Example 1. F
-1 to 160 parts (polytetrafluoroethylene 40
Parts), 1.0 part of dodecylbenzenesulfonic acid, 7 parts of distilled water
0 parts were charged, and the temperature was raised to 80 ° C. under a nitrogen stream. next,
0.001 part of iron (II) sulfate, 0.003 part of disodium ethylenediaminetetraacetate, 0.24 part of Rongalit salt,
After adding a mixed solution of 10 parts of distilled water, a mixed solution of 20 parts of n-butyl acrylate, 40 parts of styrene, and 0.3 part of tertiary butyl peroxide was dropped from a dropping funnel for 90 minutes to allow radical polymerization to proceed. After dropping, the internal temperature is
It was kept at 0 ° C. for 1 hour. No solid matter was separated through a series of operations, and a uniform particle dispersion was obtained. The solid content concentration of the particle dispersion was 33.2%, the particle size distribution was relatively broad, and the weight average particle size was 248 nm.

301.5 parts of this particle dispersion is poured into 700 parts of 85 ° C. hot water containing 5 parts of calcium chloride to separate a solid, filtered and dried to obtain a mixed powder containing polytetrafluoroethylene. (A-2) 98 parts were obtained. A-2 was shaped into a strip by a press molding machine at 250 ° C., and ultrathin sections were observed with a microtome without transmission using a transmission electron microscope. Although polytetrafluoroethylene was observed as a dark part, no aggregate exceeding 10 μm was observed.

Reference Example 3 <Production of polytetrafluoroethylene-containing mixed powder (A-3)> A mixture of 75 parts of dodecyl methacrylate and 25 parts of methyl methacrylate was added to a mixture of 0.1 parts of azobisdimethylvaleronitrile 0.1%.
One part was dissolved. A mixture of 2.0 parts of sodium dodecylbenzenesulfonate and 300 parts of distilled water was added thereto, and the mixture was stirred at 10,000 rpm for 4 minutes with a homomixer, and then passed twice through a homogenizer at a pressure of 30 MPa.
A stable dodecyl methacrylate / methyl methacrylate pre-dispersion was obtained. This was charged into a separable flask equipped with a stirring blade, a condenser, a thermocouple, and a nitrogen inlet, the internal temperature was raised to 80 ° C. under a nitrogen stream, and the mixture was stirred for 3 hours to undergo radical polymerization, and dodecyl methacrylate / methyl A methacrylate copolymer particle dispersion (hereinafter referred to as P-2) was obtained.

The solid concentration of P-2 is 25.1%,
The particle size distribution shows a single peak, and the weight average particle size is 1
At 98 nm, the surface potential was -39 mV. Reference Example 1
160 parts (40 parts of polytetrafluoroethylene) of F-1 and 159.4 parts of P-2 (40 parts of dodecyl methacrylate / methyl methacrylate copolymer) used in (1) were stirred with a stirring blade, a condenser, a thermocouple, and nitrogen introduced. The mixture was charged into a separable flask equipped with a mouth and a dropping funnel, and stirred at room temperature for 1 hour under a nitrogen stream. Thereafter, the temperature in the system was raised to 80 ° C., and a mixed solution of 0.001 part of iron (II) sulfate, 0.003 part of disodium ethylenediaminetetraacetate, 0.24 part of Rongalite salt, and 10 parts of distilled water was added. A mixture of 20 parts of methyl methacrylate and 0.1 part of tertiary butyl peroxide was added dropwise over 30 minutes, and after completion of the addition, the internal temperature was maintained at 80 ° C. for 1 hour to complete the radical polymerization. No solid matter was separated through a series of operations, and a uniform particle dispersion was obtained. The solids concentration of the particle dispersion is 28.5%, the particle size distribution is relatively broad, and the weight average particle size is 248.
nm.

349.7 parts of this particle dispersion was poured into 600 parts of 75 ° C. hot water containing 5 parts of calcium chloride to separate a solid, filtered and dried to obtain a mixed powder containing polytetrafluoroethylene. (A-3) 97 parts were obtained. The dried A-3 was formed into a strip shape at 220 ° C. by a press molding machine, and the ultrathin section was observed with a microtome without staining using a transmission electron microscope. Although polytetrafluoroethylene was observed as a dark part, no aggregate exceeding 10 μm was observed.

Reference Example 4 <Production of master pellet (M-1) of mixed powder containing polytetrafluoroethylene> 75 parts of a linear homopolypropylene pellet (EA7, manufactured by Nippon Polychem Co., Ltd., MFR 1.2 / 10 min) After blending 25 parts of the tetrafluoroethylene-containing mixed powder A-3 obtained in Reference Example 3 and hand blending, the twin-screw extruder (W
erner & Pfleiderer ZSK30), barrel temperature 200 ° C, screw rotation speed 200
The mixture was melt-kneaded at rpm and shaped into a pellet to obtain a master pellet (hereinafter referred to as M-1) of a polytetrafluoroethylene-containing mixed powder.

Examples 1 to 17, Comparative Examples 1 to 18 Olefinic resins and other thermoplastic resins (described below)
Was mixed with the tetrafluoroethylene-containing mixed powder (A-1 to 3) or the master pellet (M-1) obtained in each Reference Example in the proportions shown in Tables 1 and 2 with respect to 100 parts by weight of the mixture. The mixture was extruded by a machine (die temperature is described in Table 1) to prepare pellets. Using these pellets, 75
Molding was performed using a ton injection molding machine (cylinder temperature is described in Table 1), and the peel strength at the peeling surface, compatibility, and appearance of the molded body were evaluated. The results are shown in Tables 1 and 2.

For comparison, one extruded without adding the polytetrafluoroethylene-containing mixed powder (Comparative Example 1), and one added with polytetrafluoroethylene fine powder (CD123 manufactured by Asahi ICI Fluoropolymers) ( Comparative Example 18) was similarly evaluated. Table 2 shows the results.

[0036]

[Table 1]

[0037]

[Table 2]

In the above, the following olefin resins were used. PP: Nippon Polychem Co., Ltd. Novatec FY-4 HDPE: Nippon Polychem Co., Ltd. Novatec HY430 EPR: Mitsui Chemicals, Inc. Tuffmer P0680 The following thermoplastic resins were used.

PS: Sumibright M14, Sumitomo Chemical Co., Ltd.
0 HIPS: Sumitomo Chemical Co., Ltd. Sumibright E580 PMMA: Mitsubishi Rayon Co., Ltd. Acrypet VH PVC: Shin-Etsu Chemical Co., Ltd. polyvinyl chloride resin TK700
100 parts, dioctyltin mercaptide 3 parts as stabilizer and lubricant, Mitsubishi Rayon Co., Ltd. Metablen P-550
2 copies, Mitsubishi Rayon Co., Ltd. Metablen P-710 1
The parts were mixed with a Henschel mixer for 10 minutes until the temperature reached 110 ° C.

PC: Mitsubishi Engineering Plastics Corporation NOVAREX 7
022A PPE: (2,6-dimethyl-1,4-phenylene) ether. Reduced viscosity (ηsp / c) = 0.59 dl / g PBT: Mitsubishi Rayon Co., Ltd. Toughpet N1000 PET: Mitsubishi Rayon Co., Ltd. Diamond Night KR565 PA6: Toray CM1017 PA66: Toray CM3001N ABS: Mitsubishi Rayon Diapet 3001 Recycled polyester resin: Used by general consumers,
Bottles of other materials were removed from the used bottle group mainly composed of sorted PET bottles for beverages using X-rays. Next, the obtained PET bottle group was washed with a weak alkaline aqueous solution and water, and then subjected to wet pulverization.
Furthermore, by using the specific gravity difference to separate resin pieces and metal pieces other than polyethylene terephthalate, PE
A recycled polyester resin, which is a crushed product of a T bottle, was obtained.

[0041]

By adding the compatibilizing agent for a polyolefin resin alloy of the present invention, an alloy of a polyolefin resin and another thermoplastic resin is imparted with excellent compatibility in various molding methods, and a high-grade alloy is obtained. A molded article having an appearance can be obtained.

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Masaaki Mohri 3816 Noto, Tama-ku, Kawasaki-shi, Kanagawa F-term in the Tokyo R & D Center, Mitsubishi Rayon Co., Ltd. 4F070 AA06 AA12 AA13 AA18 AA25 AA32 AA34 AA35 AA37 AC79 FA01 FB04 FB06 4J002 AA01X AA01Z BB00W BD15Y FA08Y GG02 GK00 GT00

Claims (3)

[Claims] 1. A particle size of 10 μm wherein the polytetrafluoroethylene content is from 0.5 to 80% by weight relative to the total weight.
A compatibilizer for a polyolefin resin alloy comprising the following polytetrafluoroethylene particles and an organic polymer. 2. A particle diameter of 10 μm wherein the polytetrafluoroethylene content is 0.5 to 80% by weight relative to the total weight.
A polytetrafluoroethylene-containing mixed powder composed of the following polytetrafluoroethylene particles and an organic polymer was added to a mixture of a polyolefin resin and another thermoplastic resin in an amount of 0.1 to 100 parts by weight of the resin mixture. ~ 50
A method for improving the compatibility of a polyolefin-based resin alloy, which comprises adding it in an amount of parts by weight. 3. A particle diameter of 10 μm, wherein the polytetrafluoroethylene content is from 0.5 to 80% by weight relative to the total weight.
A polyolefin resin alloy compatibilizer comprising the following polytetrafluoroethylene particles and an organic polymer,
3. The method according to claim 2, comprising melting and kneading a part of the polyolefin-based resin or another thermoplastic resin to form a master pellet, and blending the master pellet with the remaining mixture of the polyolefin-based resin and the other thermoplastic resin. For improving the compatibility of polyolefin-based resin alloys.