WO2004092266A1 - 生分解性芳香族ポリエステルブレンド組成物から作製される射出成形品およびその製造方法 - Google Patents
生分解性芳香族ポリエステルブレンド組成物から作製される射出成形品およびその製造方法 Download PDFInfo
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- WO2004092266A1 WO2004092266A1 PCT/JP2004/005532 JP2004005532W WO2004092266A1 WO 2004092266 A1 WO2004092266 A1 WO 2004092266A1 JP 2004005532 W JP2004005532 W JP 2004005532W WO 2004092266 A1 WO2004092266 A1 WO 2004092266A1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0001—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor characterised by the choice of material
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
- C08K3/016—Flame-proofing or flame-retarding additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2300/00—Characterised by the use of unspecified polymers
- C08J2300/22—Thermoplastic resins
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K2003/026—Phosphorus
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/24—Crystallisation aids
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2666/00—Composition of polymers characterized by a further compound in the blend, being organic macromolecular compounds, natural resins, waxes or and bituminous materials, non-macromolecular organic substances, inorganic substances or characterized by their function in the composition
- C08L2666/66—Substances characterised by their function in the composition
- C08L2666/84—Flame-proofing or flame-retarding additives
Definitions
- the present invention relates to a first aromatic polyester copolymer comprising a repeating unit derived from terephthalic acid, a metal salt of a sulfonic acid, an aliphatic dicarboxylic acid, ethylene glycol and diethylene glycol, and a polyethylene glycol and a first polyester. At least one selected from the group consisting of a copolymer prepared by copolymerization or polycondensation with a polyester and a polyester containing less aromatic dicarboxylic acids and glycols than other blended polyesters.
- polyester-containing molding compositions which are biodegradable, very suitable for a wide variety of discarded applications and have very desirable mechanical strength It has heat resistance, moldability, and, if necessary, flame-retardant properties.
- the present invention also relates to a manufacturing method of Background art
- Japanese Patent Application Laid-Open No. 2001-172728 describes a biodegradable molded article having an inorganic filler vacuum-formed from an aliphatic polyester sheet. Such molded articles have improved modulus, heat resistance and impact resistance.
- Japanese Patent Application Laid-Open No. Hei 9-169697 describes a biodegradable sheet having natural fibers. Such sheets have sufficient strength and heat resistance during use.
- thermoplastics including polyolefins, polyesters, polyamides and polyvinyl chloride
- thermoplastics are manufactured using techniques commonly used in thermoplastics, such as compression molding, injection molding, extrusion or blow molding. It is also useful in However, in certain applications, such as everyday goods, electronics, industrial applications and automotive applications, products made from biodegradable polymers may be subject to the mechanical strength of products made from such other thermoplastic materials. And it is desirable to have one more than heat resistance.
- the addition of a filler to the aliphatic polyester molding composition can improve the heat resistance and the elastic modulus, but cannot improve the molding cycle, mold releasability and moldability which sufficiently satisfy the requirements from the above applications.
- the aliphatic polyester resin has improved strength and heat resistance by adding a filler. However, they still lack sufficient stiffness, impact and heat resistance for practical use in everyday products, electronics, industrial and automotive applications. In addition, when injection molding aliphatic polyesters with fillers, they cause low moldability, eg low mold release or long molding cycles. Disclosure of the invention
- the injection molded article of the present invention comprises an aromatic polyester copolymer comprising a repeating unit derived from terephthalic acid, a metal salt of sulfonic acid, an aliphatic dicarboxylic acid, ethylene glycol and dimethylene glycol.
- a reinforcing material and a filler material to improve the performance characteristics, particularly heat resistance and moldability, and a crystallization accelerator for improving moldability and facilitating crystallization of the aromatic polyester molding composition and Contains lubricant.
- injection molded articles formed from the molding composition of the present invention are biodegradable, very suitable for a variety of discarded applications, and have extremely desirable mechanical strength, heat resistance and molding suitability. If necessary, it can have flame retardancy.
- a polyester copolymer (b) prepared by copolymerizing the copolymer (a) with a polyalkylene glycol
- a branched polyester copolymer (c) prepared by polycondensation of the copolymer (a) and a polyalkylene glycol;
- the invention also contemplates injection molded articles formed from blends of the polymers (a), (b), (c) and (d).
- the molded article has heat deformability at a temperature of 80 ° C. or higher, and the crystallization speed of the molding composition is 120, which is faster than 1.6 minutes.
- the present invention further provides an injection molded article that is biodegradable.
- a method for producing an injection-molded article comprising: (I) (A) an aromatic polyester copolymer (a) having a repeating unit comprising an acid component and a dalicol component, Wherein the component comprises about 50-90 mol% of terephthalic acid, about 0.2 to about 6 mol% of sulfonic acid metal salt, and about 4 to 49.8 mol% of aliphatic dicarboxylic acid; An aromatic polyester copolymer (a) comprising about 50 to 99.9 mole% of ethylene dalicol and about 0.1 to 50 mole% of diethylene glycol; A polyester copolymer (b) prepared by copolymerizing the copolymer (a) with a polyalkylene glycol;
- a branched polyester copolymer (c) prepared by polycondensation of the copolymer (a) with a polyalkylene glycol
- Polyester copolymer (d) having a repeating unit containing an aromatic dicarboxylic acid and a dalicol component, wherein the mole% of the aromatic dicarboxylic acid of the polyester copolymer is the copolymer (a), (b) and ( c) at least one polyester selected from the group consisting of polyester copolymer (d) and less than 20 mole% of the carboxylic acid content of 20-98.8 mass%,
- (B) 1-60 materials selected from the group consisting of reinforcing materials and filler materials
- the injection-molded article of the present invention is formed from a molding composition comprising a lubricant and, optionally, other components. All are described below.
- the aromatic polyester copolymer (a) has a repeating unit containing an acid component and a dalicol component.
- the acid component is about 50-90 mol%, preferably about 52-83 mol%, of terephthalic acid.
- the acid component is about 0.2 to 6 mol%, preferably about 2 to 5 mol%, of the metal sulfonic acid salt.
- metal sulfonic acid salts include metal 5-sulfoisophthalate, metal 4-sulfoisophthalate, and metal 4,4-sulfophthalate. Among them, metal 5-sulfoisophthalate is preferred.
- metal ions include ions of alkaline metals such as sodium, potassium and lithium, or alkaline earth metals such as magnesium. The most preferred metal salt of sulfonic acid is sodium 5-sulfoisophthalate.
- the metal sulphonates are not only relatively expensive, but when used in excess, render the polyester water-soluble and further affect its physical properties.
- the metal sulphonate even at a low content of 0.2 mol%, significantly contributes to the disintegration performance of molded articles using the composition of the present invention.
- the acid component is about 4 to 49.8 mole%, preferably about 10 to 45 mole%, of aliphatic dicarboxylic acid. Below 4 mol%, the glass transition temperature cannot be significantly reduced. On the other hand, levels of aliphatic dicarboxylic acids above 49.8 mol% lead to lower glass transition temperatures, resulting in a loss of adequate stiffness of the molded part.
- the aliphatic dicarboxylic acids preferably have 2 to 18 carbons, more preferably 2 to 10 carbons.
- Illustrative examples include azelaic acid, co-octaic acid, adipic acid, sebacic acid and daltaric acid. Among them, Daltaric acid is preferred No.
- the aromatic polyester molding compositions of the present invention have a glass transition temperature (T g) of about 70 ° C., especially about 65 ° C. or less. ) Is preferable.
- T g glass transition temperature
- the aliphatic dicarboxylic acid is used to adjust the glass transition temperature to about 70 ° C. or less. Ester-forming derivatives of dicarboxylic acids, such as dimethyl esters, can be used in place of dicarboxylic acids.
- the glycol component comprises about 50 to 99.9 mole% of ethylene glycol and 0.1 to 50 mole% of ethylene glycol, preferably about 80 to 98 mole% of ethylene glycol and diethylene glycol. It is 2 to 20 mol%. Diethylene glycol units greater than 50 mol% have an adverse effect on the mechanical properties of the film, such as tensile strength, whereas less than 0.1 mol% result in poor degradability.
- Substitution of other glycols, such as triethylene glycol, for up to 20 mole percent of ethylene glycol can further lower the glass transition temperature.
- a balanced range of properties, especially mechanical properties and biodegradability can be realized. If it is desired to increase the mechanical properties of the article, the amount of terephthalic acid is increased, and if the biodegradability is desired, the amount of aliphatic dicarboxylic acid is increased, but this is due to the lower glass transition temperature ( T g).
- the polyester copolymer (b) is prepared by copolymerization of the copolymer (a) with polyethylene daricol.
- the components of the polyethylene glycol range from about 0.1 to 20% by weight.
- the branched polyester copolymer (c) is a copolymer (a) and polyethylene Prepared by polycondensation with Dalicol. Small amount of multifunctional branching agent
- Polyfunctional branching agents such as trimellitic acid, alter the melt rheology and film processability by being incorporated to branch the polyethylene glycol.
- the component amount of the polyethylene glycol ranges from about 0.1 to 20% by mass.
- the polyethylene glycol used for copolymers (b) and (c) may be replaced by another polyalkylene glycol, for example polypropylene glycol.
- Mw should be relatively low to achieve biodegradation and processability.
- the polyester copolymer comprises an acid component containing an aromatic dicarboxylic acid in an amount less than the amount of aromatic carboxylic acid contained in any of copolymers (a), (b) and (c), and a glycol component.
- an acid component containing an aromatic dicarboxylic acid in an amount less than the amount of aromatic carboxylic acid contained in any of copolymers (a), (b) and (c), and a glycol component.
- poly (butylene succinate), poly (lactide), and poly (prolactone) can be applied.
- the weight ratio of the aromatic dicarboxylic acid in the fourth polyester composition of the present invention is preferably from 0 to 70 parts by weight, more preferably from 0 to 50 parts by weight, per 100 parts by weight of the polyester.
- the molding composition according to the invention comprises from 20 to 98.8% by weight, preferably from 40 to 90% by weight of polyester copolymer, based on the total weight of polyester copolymer, reinforcing or filler material, crystallization accelerator and lubricant. %, And most preferably 50-80% by weight.
- composition of this information can also include reinforcing materials or filler materials known worldwide.
- reinforcing materials or filler materials known worldwide.
- composition of this information may also include natural reinforcing or filling materials such as starch, hemp, flax, cotton, pulp, cellulose, diatoms, wood flour, rayon, etc., and combinations of such materials.
- Natural reinforcing materials may be waste, such as wood, paper, cocoa, tea husks, soy, bamboo, dried garbage, and the like.
- the mixing ratio of the reinforcing material or the filler material can be arbitrarily selected according to the molding application such as desired mechanical properties and molding shape. Generally it will be in the range of 1 to 60% by weight, preferably 20 to 50% by weight, most preferably 20 to 40% by weight. If the amount of the filler is less than 1% by mass, a sufficient improvement in mechanical properties cannot be obtained. On the other hand, when the amount of the filler to be blended exceeds 60% by mass, the fluidity of the obtained molten composition becomes poor in formability. Crystallization accelerator
- the crystallization promoter should include a sufficient amount of at least one of an alkali metal ion source, an alkaline earth metal ion source, a zinc ion source, an aliphatic amide and talc.
- the crystallization promoter is preferably an organic hydrocarbon acid having 7 to 54 carbon atoms or an organic polymer having at least one hydroxyl group.
- the amount of crystallization promoter is in the range from 0.1 to 7.0% by weight, preferably from 0.5 to 5% by weight. If the amount of the crystallization accelerator is less than 0.1% by mass, sufficient crystallization cannot be obtained during the molding process, which affects moldability. If the amount of crystallization promoter is greater than 7% by weight, it affects the mechanical properties.
- compositions of this information include well known lubricants that can contribute to the crystallization of the aromatic polyester copolymers of the present invention.
- lubricants that can contribute to the crystallization of the aromatic polyester copolymers of the present invention.
- pentaerythrityl tetrastearate Aliphatic esters such as stearyl stearate, dipentyl distearate, erythritol and pentaerythrityl distearate, ore wax, paraffin wax, natural wax and silicone wax are applicable.
- Pentaerythrityl tetrastearate is preferred and the amount of lubricant is generally from 0.1 to 5% by weight, preferably from 0.5 to 2% by weight.
- a common method of imparting flame retardancy to a thermoplastic polyester resin composition is to add a halogenated organic compound as a flame retardant together with an antimony compound acting as a synergist for the flame retardant.
- a halogenated organic compound as a flame retardant
- an antimony compound acting as a synergist for the flame retardant acting as a synergist for the flame retardant.
- halogenated flame retardants has certain drawbacks in that it emits trace amounts of toxic gases in the combustion, and when they come in contact at high temperatures, the barrel of the compounding extruder, the surface of the molding machine, Tends to erode, and other equipment. For this reason, flame retardants with less environmental and mechanical impact have been described herein.
- compositions of this information can include non-halogenated flame retardants.
- Inorganic flame retardants phosphorus-based flame retardants, phenolic polymers, thermoplastic acrylic polymers and silicone flame retardants can be used.
- Inorganic flame retardants M g (OH) 2, A 1 (OH) 3, C a C_ ⁇ 3, B a S_ ⁇ 4, S I_ ⁇ 2, M G_ ⁇ , including borate, these Not restricted.
- Inorganic flame retardants are most preferred because they do not destroy the environment.
- the melting point of the composition of the present information is 170 ° C. or more and 240 ° C. or less, and preferably 180 ° C. or more and 220 ° C. or less.
- inorganic flame retardants are ideal flame retardants because they do not destroy the environment.However, the application of inorganic flame retardants in the flame retardation of polyester resins such as polyethylene terephthalate No examples were found. Because the melting point of polyethylene terephthalate is higher than the dewatering temperature of the inorganic flame retardant, the hydrolysis reaction of the resin progresses, and the physical properties decrease significantly. In order to live.
- the generally known biodegradable resin has a low melting point of about 100 ° C.
- Phosphorus-based flame retardants can be organic or inorganic. Suitable inorganic flame retardants include, but are not limited to, red phosphorus and phosphates of ammonia, aluminum and zinc. Suitable organophosphorus-based flame retardants include phosphonates, phosphates, and oligomeric and polymeric phosphates.
- a preferred flame retardant is resorcinol bis (di 2,6-xylyl) phosphate, which is described in Japanese Patent Application Laid-Open No. 9-143350 and is described by Daihachi Chemical Industry Co., Ltd. (Daihachi Chemicals Co., Japan) is a low cost product sold under the name PX-200.
- the phosphorus-based flame retardant is present at about 0 to about 25% by weight, based on the total weight of the composition.
- the phenolic polymer can include nopolak or resole. These can be partially or completely cured by heating and the use of Z or crosslinkers. Preference is Nopolak. Nopolak, which has no additional crosslinking agent and does not react thermally, is more preferred. There is no particular limitation on the shape used, and fine, granular, flake, powder, needle, liquid, and other shapes are suitable.
- the phenolic polymer may be used as a blend of two or more. Phenolic polymers synthesized from resources such as wood can also be used. In the present invention, the amount of phenolic polymer used should be from about 0 to about 25% by weight, based on the total weight of the composition.
- the aromatic polyester polymers used to form the molded articles of the present invention can generally be prepared by well-known polymerization methods. For example, a linear polyester in which monomer units are randomly distributed along the molecular chain, and all of the above monomer components together with antimony or another catalyst are charged to a polymerization vessel and subjected to appropriate polycondensation conditions. It can be prepared by performing polycondensation. Other methods that can be used include the step of first reacting two or more monomer components to prepare a prepolymer, and then adding the remaining monomer components and polymerizing.
- the aromatic polyester polymer used to form the molded article of the present invention decomposes under the high humidity and high temperature conditions peculiar to composting. Most of the monomers and oligomers formed as a result of such degradation (ie, terephthalic acid, glycols, and their oligomers) are easily digested by microorganisms in stool or compost, ultimately leading to carbon dioxide and become water.
- thermoplasticizers such as plasticizers, reinforcing agents, nucleating agents, antistatic agents, flame retardants, antioxidants, heat stabilizers, crosslinkers to improve hydrolysis resistance, dyes and pigments, UV stabilizers
- weathering stabilizers can be added to the aromatic polyester polymers mentioned above for the purpose of adjusting the formability or mechanical properties, but the mechanical properties, degradation performance and other properties important for polyesters The condition is that they cannot be changed. And the resulting aromatic polyester composition follows the structure of the molded article.
- polyester copolymers forming the moldings according to the invention generally have an intrinsic viscosity in the range from 0.1 to 1.5, preferably from 0.3 to 1.2.
- the copolyester, reinforcing or filler material, crystallization accelerator, lubricant and optionally the above additives are mixed in a common melt mixer, for example single or twin screw extrusion.
- the resin composition used in the present invention can be usually obtained by melt-blending with a molding machine, a Banbury mixer, a kneader or a mixing roll. All or part of the components to be incorporated can be fed to the melt mixer simultaneously or separately.
- the most common method is to dry blend the components first, then melt-knead in the melt mixer to homogenize to form pellets.
- the pellet-shaped resin composition thus prepared is usually kept in a sufficiently dried state, and is put into a hopper of a molding machine for molding.
- the molded articles of the aromatic polyesters of the present invention can be used for any kind of agricultural and horticultural products, such as flowerpots for agricultural and gardening uses, toothbrush handles, containers, dishes, cutlery, and even automotive or OA equipment parts. It is well suited for use in a range of applications including everyday items.
- the method further includes forming an injection molded article from the blend of the aromatic polyester polymer.
- the method for forming a molded article involves a step of supplying an aromatic polyester polymer-containing flake to an extruder, a step of melting the flake, and a step of extruding the melt through a nozzle into a die.
- the molten plastic is cooled, crystallized and solidified in the mold. It is kept closed. By heating the mold to a suitable temperature of about 120 ° C, the plastic is crystallized and high heat resistance is achieved. Next, open the mold and take out the solid plastic molded product.
- composition characterized by unexpectedly high crystallization rates and improved heat resistance and moldability, can also be applied to other molding methods, including crystallization steps, such as sheet molding, vacuum molding, Injection blow molded bottles and direct blow molded bottles.
- Test pieces of the specified size were placed in the compost for 15 weeks, and the test specimens were then visually inspected.
- the crystallization speed was evaluated using a DSC with a rapid cooling device capable of achieving a maximum cooling rate of 200 ° C / min. Isothermal measurements were performed to observe the crystallization peak. Each isothermal curve at the measured temperature (120 ° C) was obtained after rapid cooling from 220 ° C. For the evaluated sample, the maximum crystallization time tmax was collected to explain the isothermal properties.
- copolyester 1 comprises an acid component of about 50-90 mol% of terephthalic acid, about 0.2-6 mol% of sodium 5-sulfoisophthalate and about 4-49.8 mol% of daltaric acid, And an aromatic polyester copolymer having a repeating unit consisting of about 50 to 99.9 mol% of ethylene glycol and about 0.1 to 50 mol% of diethylene glycol (density: 1.35 g / cm 3 ; melting point: 200 ° C.) A melt index at 220 ° C under a load of 2,160 g).
- Copolyester 2 is an aromatic polyester copolymer prepared by copolymerization of copolyester 1 and 1 to 20% by mass of polyethylene glycol (density 1.35 g / cm 3 ; melting point 200; Melt index 28 ° C at 0 ° C 0 min).
- Copolyester 3 is a branched aromatic polyester copolymer obtained by copolymerizing copolymer 1 with 1 to 20% by mass of polyethylene glycol (density: 1.35 g / cm 3 ; melting point: 185 ° C; , Melt index at 220 ° C, 23 g for 10 minutes).
- each material name is GF: Glass fiber, St. Na: Sodium stearate
- Phenol polymer Nopolak HR J 12700 CP manufactured by Schenectady International, Inc.
- the pellets are then pre-dried and then the cylinder set temperature of 200-220 ° C With an extruder having a diameter of 200 mm.
- the melt was injection molded at a die temperature of 120 ° C. Table 1 shows its physical properties.
- Flakes small particles of the aromatic polyester copolymer 2, 30% by mass of glass fiber, 0.8% by mass of sodium stearate, and 0.5% by mass of pentaerythritol tetrastearate were blended to form a pellet.
- the pellets were then pre-dried and then melted in a 200 mm diameter extruder at a cylinder set temperature of 200-220 ° C.
- the melt was injection molded at a die temperature of 120 ° C. Table 1 shows the physical properties.
- the copolyester 1) in Example 13 was found to have a faster crystallization speed (according to t max) than Comparative Example AC due to the addition of crystallization accelerator and lubricant. It can be seen from Table 1 that it achieves good moldability and high heat distortion temperature.
- the copolyesters 2) and 3) in Examples 4 and 5 can also achieve high heat distortion temperatures by the addition of both a crystallization accelerator and a lubricant, as seen in Table 1.
- inorganic or phosphorus-based flame retardants were blended with the compositions of the present invention. Pellets and test pieces were prepared in the same manner as in Examples 1-5 above. The results are reported in Table 2 below.
- copolyester 2 can achieve flame retardancy V-0 at mm in Examples 6 and 7 compared to Comparative Example D.
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Abstract
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Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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EP04728262A EP1624023A4 (en) | 2003-04-18 | 2004-04-19 | OF BIODEGRADABLE MOLDING COMPOSITION PRODUCED BY AROMATIC POLYESTER-CONTAINING SYRINGE COMPOSITION AND METHOD OF MANUFACTURING THEREOF |
US10/553,691 US7619034B2 (en) | 2003-04-18 | 2004-04-19 | Injection molding produced from biodegradable aromatic polyester blend composition and process for producing the same |
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JP2003-114949 | 2003-04-18 | ||
JP2003114949 | 2003-04-18 |
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WO2004092266A1 true WO2004092266A1 (ja) | 2004-10-28 |
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US (1) | US7619034B2 (ja) |
EP (1) | EP1624023A4 (ja) |
KR (1) | KR20060007023A (ja) |
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WO (1) | WO2004092266A1 (ja) |
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WO2007072141A3 (en) * | 2005-12-23 | 2007-11-29 | Keiper Holding S R L | Composition and method for manufacturing a product |
CN1986595B (zh) * | 2005-12-22 | 2011-03-09 | 财团法人工业技术研究院 | 形状记忆聚合物 |
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CN101148498B (zh) * | 2007-10-18 | 2010-08-18 | 四川大学 | 可降解阻燃共聚酯及其制备方法和由其与脂肪族聚酯制备的共混材料 |
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CA1234289A (en) * | 1984-10-24 | 1988-03-22 | Derik G.E. Kerfoot | Recovery of platinum group metals from nickel-copper- iron matte |
KR100244441B1 (ko) * | 1995-11-30 | 2000-02-01 | 모리시타 요이찌 | 몰드재 및 몰드모터 |
DE19643280A1 (de) * | 1996-10-21 | 1998-04-23 | Basf Ag | Flammgeschützte Formmassen |
US20020152845A1 (en) * | 1999-04-28 | 2002-10-24 | Fleming Christopher A. | Oxidative pressure leach recovery of precious metals using halide ions |
JP2003105176A (ja) | 2001-09-27 | 2003-04-09 | Tohcello Co Ltd | 二軸延伸生分解性ポリエステルフィルム及び積層フィルム |
US7388058B2 (en) | 2002-05-13 | 2008-06-17 | E.I. Du Pont De Nemours And Company | Polyester blend compositions and biodegradable films produced therefrom |
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2004
- 2004-04-19 US US10/553,691 patent/US7619034B2/en not_active Expired - Fee Related
- 2004-04-19 EP EP04728262A patent/EP1624023A4/en not_active Withdrawn
- 2004-04-19 WO PCT/JP2004/005532 patent/WO2004092266A1/ja active Application Filing
- 2004-04-19 KR KR1020057019768A patent/KR20060007023A/ko not_active Application Discontinuation
- 2004-04-19 CN CNA200480010426XA patent/CN1777649A/zh active Pending
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JP2002356543A (ja) * | 2001-03-29 | 2002-12-13 | Toray Ind Inc | ポリ乳酸ブロック共重合体、その製造方法、成形品およびポリ乳酸組成物 |
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CN1986595B (zh) * | 2005-12-22 | 2011-03-09 | 财团法人工业技术研究院 | 形状记忆聚合物 |
WO2007072141A3 (en) * | 2005-12-23 | 2007-11-29 | Keiper Holding S R L | Composition and method for manufacturing a product |
Also Published As
Publication number | Publication date |
---|---|
US7619034B2 (en) | 2009-11-17 |
EP1624023A1 (en) | 2006-02-08 |
CN1777649A (zh) | 2006-05-24 |
EP1624023A4 (en) | 2006-07-19 |
US20060264569A1 (en) | 2006-11-23 |
KR20060007023A (ko) | 2006-01-23 |
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