WO2005121254A1 - 熱可塑性樹脂組成物および成形品 - Google Patents
熱可塑性樹脂組成物および成形品 Download PDFInfo
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- WO2005121254A1 WO2005121254A1 PCT/JP2005/010137 JP2005010137W WO2005121254A1 WO 2005121254 A1 WO2005121254 A1 WO 2005121254A1 JP 2005010137 W JP2005010137 W JP 2005010137W WO 2005121254 A1 WO2005121254 A1 WO 2005121254A1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
- C08G59/42—Polycarboxylic acids; Anhydrides, halides or low molecular weight esters thereof
-
- 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
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
- C08J3/226—Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
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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
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
Definitions
- the present invention relates to a thermoplastic resin composition containing a condensation polymer such as polyester resin as a main component, and a molded product thereof. More specifically, the present invention relates to a thermoplastic resin composition which gives a molded product exhibiting excellent dimensional stability, surface smoothness, gloss and transparency, and a molded product thereof.
- polyester resins are used in various fields such as bottles, sheets, and films because of their excellent mechanical strength.
- polyester resins are widely used as food packaging materials such as bottles and blister packs because of their excellent transparency and hygiene.
- PET polyethylene terephthalate
- the amount of polyethylene terephthalate (hereinafter also referred to as PET) resin bottles collected and reused Is increasing year by year.
- the main demand for recycled PET fats is in sheets for egg packs and textiles for clothes and carpets. While the recovery of recycled PET resin is increasing, demand for recycled products such as sheets and fibers is leveling off.
- PET resin is inherently low in melt viscosity and melt tension, so it is suitable for molded products with small diameter and small cross section such as fibers and films.
- melt tension is so low that a drawdown phenomenon occurs, and a molded product having desired dimensions cannot be obtained.
- uneven thickness with uneven thickness due to the drawdown phenomenon is likely to occur.
- Such low viscosity and low melt tension inherent in PET resin are barriers to the development of new products.
- recycled PET resin has a high thermal history and hydrolysis progresses, it has a much lower melt viscosity and melting tension than virgin PET resin, making it extremely difficult to develop new molded product applications. In the situation.
- melt viscosity and melt tension of PET resin and recycled PET resin are improved.
- a method of (enlarging) a method of compounding a polymer having an epoxy group (for example, see Patent Document 1 and Patent Document 2) or a method of mixing an epoxy group-containing compound and an organic alkali metal salt (for example, Patent Document 3) See) etc.!
- the melt viscosity and melt tension of the polyester resin can be increased, and the drawdown during molding can be improved.
- a strong cross-linked product is formed partially in the molding machine, the flow of the molten resin in the molding machine becomes uneven, and the dimensional stability, surface smoothness, gloss, Transparency may be impaired.
- Patent Document 1 Japanese Patent No. 2675718
- Patent Document 2 International Publication WO03Z066704 pamphlet
- Patent Document 3 Re-published patent WO01,094443
- the present invention relates to a thermoplastic resin composition having a high melt viscosity and a high melt tension, which gives a molded article excellent in dimensional stability, surface smoothness, gloss and transparency.
- the purpose is to provide. It is another object of the present invention to provide a molded article having excellent dimensional stability, surface smoothness, gloss and transparency.
- the thermoplastic resin composition of the present invention comprises a thermoplastic resin (A) having a functional group having reactivity with an epoxy group, and a polymer (B) having an epoxy group. ) And a compound (C) other than the component (A) having one carboxyl group, wherein the proportion of the component (B) is 0.1 to 20 parts by mass based on 100 parts by mass of the component (A). And the ratio of the component (C) based on 100 parts by mass of the component (B) is 0.025 to 7 parts by mass.
- the molded article of the present invention is obtained by molding the thermoplastic resin composition according to any one of claims 1 to 8.
- thermoplastic resin composition that gives a molded article having excellent dimensional stability, surface smoothness, gloss and transparency, in which the melt viscosity and the melt tension are large, was obtained.
- a molded article having excellent dimensional stability, surface smoothness, gloss and transparency was obtained.
- acryl and methacryl are collectively referred to as (meth) acryl.
- thermoplastic resin (A) having a functional group having reactivity with an epoxy group is a main component of the thermoplastic resin composition. It is responsible for the basic performance of the molded article obtained by molding the composition.
- Specific examples of the functional group having reactivity with the epoxy group include a carboxyl group, a hydroxyl group, an amide group, and an amino group.
- examples of the thermoplastic resin (A) include polyester resin, polyamide resin, polycarbonate resin, polylactic acid resin, polycaprolactone resin, polybutylene succinate, and poly (butylene succinate).
- thermoplastic resin (A) includes polyester resin (including regenerated polyester resin).
- polyester resin examples include a condensation type polymer or copolymer having a dicarboxylic acid unit and a diol unit as constituent units.
- Examples of raw materials used to form dicarboxylic acid units include aromatic dicarboxylic acids and their dialkyl or diaryl esters.
- Specific examples of the aromatic dicarboxylic acids include terephthalic acid, isophthalic acid, phthalic acid, naphthalene 1,4-dicarboxylic acid, naphthalene 2,6-dicarboxylic acid, bis (p-carboxyphenyl) methane, and anthracene dicarboxylic acid. , 4,4, diphenyldicarboxylic acid, 4,4,1-diphenyletherdicarboxylic acid and the like.
- an aliphatic dicarboxylic acid or a dialkyl ester or a diaryl ester thereof can be used in combination.
- Specific examples of the aliphatic dicarboxylic acid include daltaric acid, adipic acid, sebacic acid, oxalic acid, and succinic acid.
- raw materials used to form the diol unit include ethylene glycol, propylene glycol, 1,4 butanediol, neopentyl glycol, 1,5 pentanediol, 1,6 hexanediol, and decamethylene.
- polyester resins preferred are crystalline homopolyethylene terephthalate resins and crystalline copolyester resins containing terephthalic acid units and Z or isophthalic acid units as dicarboxylic acid units and ethylene glycol units as diol units. It is. Non-crystalline copolyester resins containing terephthalic acid units as dicarboxylic acid units and ethylene glycol units and 1,4-cyclohexanedimethanol units as diol units are preferred.
- Other polyester resins include polybutylene terephthalate, polyethylene 2,6 naphthalate, biodegradable polyester resins, and the like, and these can be used alone or as a mixture of two or more.
- the polymer (B) having an epoxy group (hereinafter, also simply referred to as polymer (B)) is a component that plays a role in increasing the melt viscosity and melt tension of the thermoplastic resin composition.
- the polymer is obtained by polymerizing a vinyl monomer having an epoxy group with another vinyl monomer.
- the vinyl monomer having an epoxy group include (meth) acrylic acid esters having a glycidyl (meth) acrylate cyclohexenoxide structure, and (meth) aryldalicydyl ether.
- Preferred as the monomer having an epoxy group is glycidyl (meth) acrylate.
- butyl monomers examples include alkyl (meth) acrylates having an alkyl group having 1 to 22 carbon atoms (the alkyl group may be linear or branched), and (meth) acrylic acid.
- alkyl (meth) acrylates having an alkyl group having 1 to 22 carbon atoms (the alkyl group may be linear or branched), and (meth) acrylic acid.
- alkyl (meth) acrylate having an alkyl group having 1 to 22 carbon atoms include methyl (meth) acrylate, ethyl (meth) acrylate, propyl (meth) acrylate, and (meth) acryl. Butyl acrylate, 2-ethylhexyl (meth) acrylate, cyclohexyl (meth) acrylate, and stearyl (meth) acrylate.
- vinyl monomers include (meth) acrylamide, (meth) acrylic dialkylamide, vinyl esters such as vinyl acetate, vinyl ethers, (meth) aryl ethers, and aromatic vinyl such as styrene and oc-methylstyrene.
- Monomers and ⁇ -olefin monomers such as ethylene and propylene can also be used. One or more of these may be used.
- the vinyl monomer composition used in the polymer ( ⁇ ) can be selected according to the purpose of the present invention and the purpose of imparting other functions. .
- the thermoplastic resin ( ⁇ ) is polyethylene terephthalate (refractive index: about 1.565)
- aromatic vinyl monomers such as styrene and ⁇ - methylstyrene having a high refractive index are used as other vinyl monomers. Is preferred.
- the resulting molded article is required to be particularly flexible, other vinyl monomers such as butyl (meth) acrylate or ethyl (meth) acrylate having a low glass transition temperature may be used.
- the body is preferred.
- the polymer also functions as a compatibilizer, for example, when a polyethylene terephthalate Z polyolefin blend composition or a polycarbonate Z polyolefin blend composition is targeted, as the other monomer, It is preferable to use an olefin type vinyl monomer such as ethylene, propylene, butadiene and the like.
- the polymer (B) preferably contains 1 to 70% by mass and 30 to 99% by mass of epoxy monomer-containing monomer units and other monomer units, respectively. Those containing in a proportion of ⁇ 60% by mass and 40-95% by mass are more preferred 10 Those containing at a ratio of 50 to 90% by mass and 50 to 90% by mass are more preferable. If the proportion of the butyl monomer unit having an epoxy group is less than 1% by mass, the effect of increasing the melt tension of the thermoplastic resin composition is small, so that the draw-down phenomenon cannot be suppressed and the desired molding can be performed. The shape of the product may not be obtained.
- thermoplastic resin (A) If the proportion of the vinyl monomer unit having an epoxy group exceeds 70% by mass, an excessive crosslinking reaction between the thermoplastic resin (A) and the polymer (B) causes the thermoplastic resin to undergo a crosslinking reaction. In some cases, the composition becomes a crosslinked product in a molding machine, and a molded article having a desired shape cannot be obtained.
- the average number of epoxy groups per molecule of the polymer (B) is preferably 1.2 or more.
- the number is more preferably 1.5 to 100, and still more preferably 2.0 to 50.
- the average number of epoxy groups per molecule can be determined from the following formula (1).
- a, b and c are as follows.
- the number average molecular weight of the polymer (B) is preferably from 300 to 30,000 force S, more preferably from 350 to 25,000 force S, and still more preferably from 400 to 20,000 force S. If the number average molecular weight is less than 300, the average number of epoxy groups per molecule of the polymer ( ⁇ ) is reduced, and the effect of increasing the melt viscosity and melt tension of the thermoplastic resin composition is not sufficient. May be. When the number average molecular weight exceeds 30,000, the average number of epoxy groups per polymer) molecule increases, and the thermoplastic resin composition causes an excessive crosslinking reaction in the molding machine to improve moldability. May worsen.
- the polymer (II) can be produced by any method such as a bulk polymerization method, a solution polymerization method, and an emulsion polymerization method.
- a preferred method is a continuous bulk polymerization method, and a more preferred method is a high temperature continuous It is a state polymerization method.
- the polymerization temperature is preferably from 130 to 350 ° C, more preferably from 150 to 330 ° C, and still more preferably from 170 to 270 ° C. At the above polymerization temperature, a polymer having a desired molecular weight can be efficiently obtained by using no radical polymerization initiator or chain transfer agent or by using a very small amount.
- the polymerization temperature is lower than 130 ° C.
- a large amount of a radical polymerization initiator or a chain transfer agent is required to obtain a target molecular weight, and thus the obtained polymer tends to contain many impurities.
- the thermoplastic resin composition and the molded product may have problems such as coloring and an unusual odor.
- the polymerization temperature exceeds 350 ° C, thermal decomposition of the polymer occurs, and the desired polymer may not be obtained efficiently.
- Such a high-temperature continuous polymerization may be performed according to a known method disclosed in JP-T-57-502171, JP-A-59-6207, JP-A-60-215007 and the like. .
- a pressurizable reactor is set to a predetermined temperature under pressure
- a vinyl monomer mixture comprising each vinyl monomer and, if necessary, a polymerization solvent is supplied to the reactor at a constant supply rate.
- a method of feeding and extracting a polymerization reaction solution in an amount commensurate with the supply amount of the vinyl monomer mixture can be used.
- a polymerization initiator may be added to the vinyl monomer mixture, if necessary.
- the amount is preferably 0.01 to 2 parts by mass with respect to 100 parts by mass of the vinyl monomer mixture.
- the pressure depends on the reaction temperature and the boiling point of the vinyl monomer mixture and the solvent to be used and does not affect the reaction. Therefore, any pressure may be used as long as the reaction temperature can be maintained.
- the residence time of the monomer mixture in the reactor is preferably 1 to 60 minutes. If the residence time is shorter than 1 minute, the monomer may not react sufficiently. If the residence time is longer than 60 minutes, the productivity may be reduced. Preferably, the residence time is between 2 and 40 minutes.
- the compound (C) other than the component (A) having one carboxyl group adjusts the melt viscosity and melt tension of the thermoplastic resin composition, This is a component for preventing molding problems caused by gelling before or during the molding process of the thermoplastic resin composition.
- "Other than component (A)” is defined as "thermoplastic resin (A) having a functional group with reactivity with epoxy group” and has only one carboxyl group.
- Compounds for example, polyester resins having one carboxyl group and one hydroxyl group at each of two terminals
- the minutes clearly express that they are excluded from the carboxyl compound (C).
- the carboxyl group of the carboxyl compound (C) is entirely or partially sodium.
- carboxyl conjugate (C) examples include lower aliphatic carboxylic acid compounds such as acetic acid, butyric acid, isobutyric acid, pentanoic acid and isopentanoic acid, and decanoic acid, pendecanoic acid, lauric acid, palmitic acid, Higher aliphatic carboxylic acids such as oleic acid and stearic acid, and benzoic acid, methylbenzoic acid, 4-ethylbenzoic acid, 2,4-dimethylbenzoic acid, o-tolylacetic acid, m-tolylacetic acid, p-tolylacetic acid, 2 Examples include aromatic carboxylic acid conjugates such as fluorbutyric acid, 4-furbutyric acid, 1-naphthoic acid, and 2-naphthoic acid.
- Anhydrous monofunctional carboxylic acids such as benzoic anhydride, butyric anhydride, hexane anhydride, and propionic anhydride are converted to a compound having one carboxyl group by hydrolysis, so that the carboxyl compound Included in (C).
- An anhydride of a divalent carboxylic acid such as phthalic anhydride or maleic anhydride is not included in the carboxyl compound (C) because it is converted to a compound having two carboxyl groups by hydrolysis.
- carboxyl compound (C) a carboxylic acid conjugate having 5 or more carbon atoms is preferable, and an aromatic carboxylic acid conjugate is more preferable.
- carboxyl compound (C) is an aromatic carboxylic acid compound, the effect of improving the compatibility of the thermoplastic resin (A) and the polymer (B), which are components of the thermoplastic resin composition, is improved. Yes, the resulting molded article is more likely to be more homogeneous and is preferred.
- the carboxyl compound (C) preferably has a boiling point of 100 ° C or higher. More than 150 ° C More preferably more than 200 ° C. If the boiling point is less than 100 ° C, the carboxyl compound (C) is liable to evaporate during the heating and melting process in the production of the composition, so that it is difficult to control the concentration in the composition, In some cases, the work environment is rendered unsuitable.
- the ratio of the polymer (B) and the carboxyl conjugate (C) contained in the thermoplastic resin composition is based on 100 parts by mass of the polymer (B). O. 025 to 7 parts by mass, preferably 0.03 to 7 parts by mass, more preferably 0.04 to 6 parts by mass, More preferably, it is 0.05 to 5 parts by mass. If the ratio of the carboxyl compound (C) is less than 0.025 parts by mass, the molding stability (fluidity) becomes unstable when the thermoplastic resin composition is molded, and the dimensional stability of the obtained molded product becomes unstable. Insufficient properties. If the amount exceeds 7 parts by mass, the effect of increasing the melt viscosity and the melt tension of the thermoplastic resin composition becomes insufficient, and it becomes difficult to obtain a molded product as designed.
- the ratio of the thermoplastic resin (A) and the polymer (B) contained in the thermoplastic resin composition is based on 100 parts by mass of the thermoplastic resin (A). -20 parts by mass, preferably 0.2-16 parts by mass. If the proportion of the polymer (B) is less than 0.1 part by mass, the effect of increasing the melt viscosity and melt tension of the thermoplastic resin composition becomes insufficient, and it is difficult to obtain a molded product as designed. It becomes. If the amount exceeds 20 parts by mass, the molding stability (flowability) becomes unstable when the thermoplastic resin composition is formed, and the dimensional stability of the obtained molded product becomes insufficient.
- the thermoplastic resin composition includes, besides the thermoplastic resin (A), the polymer (B) and the carboxyl compound (C), an extender pigment, a coloring pigment, a plasticizer, a fluidity modifier, and other A known component that can be blended with the plastic resin may be added.
- the thermoplastic resin composition is obtained by mixing the thermoplastic resin (A), the polymer (B) and the carboxyl compound (C) by any method.
- any method for example, single-screw extruders, twin-screw co-axial twin-screw extruders, twin-screw parallel-screw twin-screw extruders, double-screw twin-screw twin-screw extruders, non-twist twin-screw extruders
- Each raw material is extruded by an extruder such as an extruder, imperfect twin screw extruder, co-kneader extruder, planetary gear extruder, transfer mix extruder, ram extruder, roller extruder, etc. It is obtained by mixing. Prior to the mixing, the raw materials can be premixed using a Henschel mixer or a tumbler.
- Each raw material component of the thermoplastic resin composition may be in any shape or property such as a pellet shape, a powder shape, and a liquid.
- the polymer (B) and the carboxyl conjugate (C) are prepared as a masterbatch previously mixed with a certain amount of a thermoplastic resin, and the masterbatch and the thermoplastic resin (A) are mixed.
- a thermoplastic resin composition hereinafter referred to as a masterbatch method.
- the masterbatch method is a preferred method since a relatively small amount of the carboxyl conjugate (C) can be uniformly mixed in the thermoplastic resin composition.
- the thermoplastic resin used for preparing the master batch may be a part of the thermoplastic resin (A) or a thermoplastic resin (D) having no functional group having reactivity with an epoxy group.
- thermoplastic resin (D) (Hereinafter simply referred to as thermoplastic resin (D)), or both may be used in combination.
- the preparation of the masterbatch and the production of the thermoplastic resin composition by mixing the masterbatch and the thermoplastic resin (A) can be performed using the extruder or the stirrer exemplified above. .
- thermoplastic resin (A) When the thermoplastic resin used for preparing the masterbatch is the thermoplastic resin (A), the thermoplastic resin finally mixed with the thermoplastic resin composition in the masterbatch preparation step. (A) Part of the total amount is used. 30 to 85 parts by mass of thermoplastic resin (A) based on 100 parts by mass of total amount of thermoplastic resin (A), polymer (B) and carboxyl conjugate (C) in master batch And the total amount of the polymer (B) and the carboxyl compound (C) is preferably 15 to 70 parts by mass.
- the thermoplastic resin (A) is preferably 40 to 80 parts by mass, and the total amount of the polymer (B) and the carboxyl compound (C) is more preferably 20 to 60 parts by mass. ) Is 45 to 75 parts by mass, and the total amount of the polymer (B) and the carboxyl conjugate (C) is more preferably 25 to 55 parts by mass.
- thermoplastic resin composition gives a molded article excellent in dimensional stability, surface smoothness, gloss and transparency, particularly when the melt viscosity and melt tension are large. .
- thermoplastic resin composition When producing a thermoplastic resin composition using a masterbatch containing the thermoplastic resin (A) prepared as described above, the amount of the thermoplastic resin (A) to be mixed with the masterbatch is used. Is obtained by subtracting the amount of the thermoplastic resin (A) used for preparing the master batch from the total amount of the thermoplastic resin (A) finally mixed in the thermoplastic resin composition.
- the preparation of the masterbatch can also be performed using the thermoplastic resin (D) without using the thermoplastic resin (A). Based on 100 parts by mass of the total amount of thermoplastic resin (D), polymer (B) and lipoxyl compound (C) in the masterbatch, 30% of thermoplastic resin (D) To 85 parts by mass, and the total amount of the polymer) and the carboxyl conjugate (C) is preferably 15 to 70 parts by mass.
- the thermoplastic resin (D) is 40 to 80 parts by mass, and the total amount of the polymer (B) and the carboxyl conjugate (C) is more preferably 20 to 60 parts by mass.
- (D) is 45 to 75 parts by mass, and the total amount of the polymer (B) and the carboxyl conjugate (C) is more preferably 25 to 55 parts by mass.
- thermoplastic resin composition gives a molded article excellent in dimensional stability, surface smoothness, gloss and transparency, particularly when the melt viscosity and melt tension are large. .
- thermoplastic resin composition When a thermoplastic resin composition is produced using a masterbatch that does not contain the thermoplastic resin (A) prepared as described above, the thermoplastic resin (A) to be mixed with the masterbatch is used. The amount is the total amount of the thermoplastic resin (A) finally mixed into the thermoplastic resin composition.
- thermoplastic resin (A) or (D) When the masterbatch is produced using a combination of the thermoplastic resin (A) and the thermoplastic resin (D), the thermoplastic resin (A) or (D) must be The ratio may be replaced by the total amount of the thermoplastic resin (A) and the thermoplastic resin (D) used in the preparation of the masterbatch.
- thermoplastic resin used for the preparation of the masterbatch is preferably a thermoplastic resin (A) in part or in its entirety.
- thermoplastic resin composition tends to have particularly good properties described above.
- thermoplastic resin (D) used for preparing the master batch examples include low-density polyethylene resin, high-density polyethylene resin, polypropylene resin, ethylene-propylene copolymer, and ethylene-vinyl acetate copolymer.
- acrylic resins such as polymethyl methacrylate resin.
- thermoplastic resin composition can be used for the production of various molded articles using an extruder or an injection molding machine.
- molded articles obtained from the thermoplastic resin composition include extruded articles such as sheets and films, calender molded articles, deformed extruded articles such as pipes and baseboards, and injection molded articles.
- Out-molded articles, blow-molded articles such as bottles, drawn articles, and the like.
- thermoplastic resin composition of the present invention has excellent drawdown resistance
- a method of producing a molded product by an extruder is a preferable method in that the features of the present invention are effectively used.
- Preferred molded articles include transparent sheets, transparent films, and irregularly shaped articles produced by an extruder.
- the temperature of the oil jacket of a 1-liter pressurized stirred tank reactor equipped with an oil jacket was maintained at 200 ° C.
- 74 parts by mass of styrene hereinafter, referred to as St
- 20 parts by mass of glycidyl methacrylate hereinafter, referred to as GMA
- 6 parts by mass of butyl acrylate hereinafter, referred to as BA
- 15 parts by mass of xylene and as a polymerization initiator.
- a monomer mixture comprising 0.5 parts by mass of tert-butyl butyl oxide (hereinafter referred to as DTBP) was charged into a raw material tank.
- DTBP tert-butyl butyl oxide
- the reaction solution is continuously supplied from the raw material tank to the reactor at a constant supply rate (48 gZ min., Residence time: 12 min.), And the reaction solution is continuously discharged so that the content of the liquid in the reactor becomes constant at about 580 g. Extracted. At that time, the temperature inside the reactor was kept at about 210 ° C.
- the withdrawn reaction solution was continuously subjected to a volatile component removal treatment using a thin film evaporator maintained at a reduced pressure of 30 kPa and a temperature of 250 ° C to remove volatile components.
- Polymer 1 containing almost no amount was recovered.
- About 7 kg of Polymer 1 was recovered over 180 minutes.
- the number-average molecular weight (hereinafter, referred to as Mn) of polymer 1 obtained by gel permeation chromatography (hereinafter, referred to as GPC) by polystyrene conversion is 3,800, and the weight-average molecular weight (hereinafter, referred to as Mw).
- Mn number-average molecular weight
- Mw weight-average molecular weight
- Fn average number of epoxy groups contained in one molecule of the polymer was 4.5.
- MMA methyl methacrylate
- Mn of polymer 2 in terms of polystyrene determined by GPC was 2900, and Mw was 1080. It was 0. Fn was 5.1.
- Polymers 3 and 4 were produced in the same manner as in the production of polymer 1, except that the composition of the raw material monomers was as shown in Table 1.
- thermoplastic resin for master batch (hereinafter, also referred to as a vehicle), Easter 6763 (hereinafter, PET-G) manufactured by Eastman Chemical Co., which is a non-crystalline copolyester resin, was used. PET-G 79. 995% by mass, 20% by mass of polymer 1 and 0.005% by mass of benzoic acid were added, and the components were uniformly premixed with a Henschel mixer. The mixture was melted and kneaded with an extruder (ST-40 manufactured by Plastics Engineering Laboratory) to obtain a master batch 1.
- PET-G a thermoplastic resin for master batch
- ST-40 manufactured by Plastics Engineering Laboratory
- Masterbatches 2 to 16 were prepared in the same manner as in the preparation of masterbatch 1, except that the types and amounts of the raw materials were as shown in Table 2.
- BK-2180 As a vehicle, Novapet BK 2180 (hereinafter simply referred to as BK-2180!), A crystalline copolyester resin manufactured by Mitsubishi I-Dagaku Co., Ltd., was used. BK- 2180 84. to 55 mass 0/0, was added benzoic acid 0.05 wt%, and uniformly mixing the components by a Henschel mixer. The mixture was put into a hopper of a co-directional parallel-screw twin-screw extruder (ST-40, manufactured by Plastics Engineering Laboratory). Then, when the mixture of BK-2180 and benzoic acid was melted in the extruder, the polymer 4 was added to be 15.4% by mass using a liquid addition device and mixed to obtain a master batch 17.
- BK-2180 A crystalline copolyester resin manufactured by Mitsubishi I-Dagaku Co., Ltd.
- PET-G Yeastman Chemical Co., Ltd.
- Amorphous copolyester resin Easter 6763 PET Mitsubishi Chemical Corporation crystalline copolyester resin Novapet BK-2180
- thermoplastic resin composition (Production of thermoplastic resin composition)
- thermoplastic resin composition having the composition shown in Table 3 and a comparative composition having the composition shown in Table 4 were prepared at 280 ° C. And kneaded for 5 minutes. The kneading torque was measured every minute after the start of kneading, and the molten state of the composition was observed.
- Type Amount (% by mass)
- Type Amount (% by mass)
- MA-2101 Crystalline copolyester resin manufactured by Unitika
- BK-2180 Crystalline copolyester resin manufactured by Mitsubishi Chemical Corporation [Table 4]
- R-PET YPR Clear Pellets manufactured by Yono Pet Recycle Co., Ltd.
- GS-900Z Crystalline PET resin manufactured by Mitsubishi Chemical Corporation
- MA-2101 Crystalline copolyester resin manufactured by Unitika
- BK-2180 crystalline copolyester resin manufactured by Mitsubishi Chemical Corporation Table 5 shows the torque measurement results of Examples 1 to 8 and Comparative Examples 1 to 5.
- Example 1 the kneading torque was higher than that of Comparative Example 1, and a thickening effect, that is, a melt viscosity increasing effect was confirmed.
- the thickening action of Example 1 was quickly finished in a kneading time of about 1-2 minutes.
- the state when the resin composition was taken out was also strong without gelling.
- a comparative example a comparative example
- thermoplastic resin compositions of Examples 9 to 14 and the comparative resin composition of Comparative Examples 6 to 10 a single screw extruder having a diameter of 40 mm equipped with a fishtail die for sheet molding was used. A sheet having a thickness of 0.5 mm was formed at a forming temperature of 280 ° C. under the conditions of a screw rotation of 20 rotations and Z minutes.
- the sheet of Example 9 had a high surface smoothness (a large 60 ° dalos) and was excellent in transparency.
- the sheets of Examples 10 to 14 also had good transparency.
- the sheets of Comparative Examples 6 and 8 to 10 were opaque because their surfaces were rough and dull.
- Comparative Example 7 was inferior in surface gloss as compared with Example 12. Further, the dimensional stability of the sheet of each example was higher than that of the sheet of each comparative example. From this, the heat transfer of Examples 9 to 14 It is evident that a molded article exhibiting excellent dimensional stability, surface smoothness, gloss and transparency can be obtained from a plastic resin composition.
- thermoplastic resin composition of the present invention is a material having high melt tension and excellent dimensional stability at the time of melt molding, extruded products such as sheets and films, and deformed extruded products, and drawn molded products, Further suitable for blow molded products.
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Abstract
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JP2006514469A JP4725514B2 (ja) | 2004-06-11 | 2005-06-02 | 熱可塑性樹脂組成物および成形品 |
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JP2004-174366 | 2004-06-11 | ||
JP2004174366 | 2004-06-11 |
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WO2005121254A1 true WO2005121254A1 (ja) | 2005-12-22 |
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PCT/JP2005/010137 WO2005121254A1 (ja) | 2004-06-11 | 2005-06-02 | 熱可塑性樹脂組成物および成形品 |
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JP (1) | JP4725514B2 (ja) |
TW (1) | TWI383020B (ja) |
WO (1) | WO2005121254A1 (ja) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012077240A (ja) * | 2010-10-05 | 2012-04-19 | Mitsubishi Engineering Plastics Corp | 溶融張力改善剤、ポリカーボネート−ポリエステル複合樹脂組成物及び成形品 |
JP2015034220A (ja) * | 2013-08-08 | 2015-02-19 | 住友ゴム工業株式会社 | 高性能タイヤ用トレッドゴム組成物及び高性能タイヤ |
JP2015034219A (ja) * | 2013-08-08 | 2015-02-19 | 住友ゴム工業株式会社 | 高性能ウェットタイヤ用トレッドゴム組成物及び高性能ウェットタイヤ |
WO2017110917A1 (ja) * | 2015-12-25 | 2017-06-29 | 東洋紡株式会社 | ポリエステル樹脂組成物、これを含む光反射体用部品および光反射体、ならびにポリエステル樹脂組成物の製造方法 |
US10385205B2 (en) | 2015-09-02 | 2019-08-20 | Toyobo Co., Ltd. | Polyester resin composition, light-reflector component containing same, and light reflector |
US11001706B2 (en) | 2017-02-02 | 2021-05-11 | Toyobo Co., Ltd. | Polyester resin composition, and light reflector component and light reflector including polyester resin composition |
US11713392B2 (en) | 2017-02-02 | 2023-08-01 | Toyobo Co., Ltd. | Polyester resin composition, and light reflector component and light reflector including polyester resin composition |
US11795298B2 (en) | 2018-03-26 | 2023-10-24 | Toyobo Mc Corporation | Polyester resin composition, light-reflector component containing same, and light reflector |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56159247A (en) * | 1980-05-12 | 1981-12-08 | Toray Ind Inc | Thermoplastic resin composition |
JPH01245054A (ja) * | 1988-03-25 | 1989-09-29 | Nippon Petrochem Co Ltd | ポリアミド樹脂組成物 |
JPH05179125A (ja) * | 1991-12-27 | 1993-07-20 | Nippon G Ii Plast Kk | 低光沢の熱可塑性樹脂組成物 |
JPH07300554A (ja) * | 1994-05-09 | 1995-11-14 | Daicel Chem Ind Ltd | ポリカーボネート系樹脂組成物 |
JP2000109661A (ja) * | 1998-10-08 | 2000-04-18 | Sumitomo Chem Co Ltd | ポリエステル樹脂組成物の流動性改良方法 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004323554A (ja) * | 2003-04-21 | 2004-11-18 | Toyobo Co Ltd | 押出発泡成形加工用ポリエステル樹脂組成物、その成形品およびその製造方法 |
-
2005
- 2005-06-02 JP JP2006514469A patent/JP4725514B2/ja active Active
- 2005-06-02 WO PCT/JP2005/010137 patent/WO2005121254A1/ja active Application Filing
- 2005-06-07 TW TW94118715A patent/TWI383020B/zh active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56159247A (en) * | 1980-05-12 | 1981-12-08 | Toray Ind Inc | Thermoplastic resin composition |
JPH01245054A (ja) * | 1988-03-25 | 1989-09-29 | Nippon Petrochem Co Ltd | ポリアミド樹脂組成物 |
JPH05179125A (ja) * | 1991-12-27 | 1993-07-20 | Nippon G Ii Plast Kk | 低光沢の熱可塑性樹脂組成物 |
JPH07300554A (ja) * | 1994-05-09 | 1995-11-14 | Daicel Chem Ind Ltd | ポリカーボネート系樹脂組成物 |
JP2000109661A (ja) * | 1998-10-08 | 2000-04-18 | Sumitomo Chem Co Ltd | ポリエステル樹脂組成物の流動性改良方法 |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012077240A (ja) * | 2010-10-05 | 2012-04-19 | Mitsubishi Engineering Plastics Corp | 溶融張力改善剤、ポリカーボネート−ポリエステル複合樹脂組成物及び成形品 |
JP2015034220A (ja) * | 2013-08-08 | 2015-02-19 | 住友ゴム工業株式会社 | 高性能タイヤ用トレッドゴム組成物及び高性能タイヤ |
JP2015034219A (ja) * | 2013-08-08 | 2015-02-19 | 住友ゴム工業株式会社 | 高性能ウェットタイヤ用トレッドゴム組成物及び高性能ウェットタイヤ |
US10385205B2 (en) | 2015-09-02 | 2019-08-20 | Toyobo Co., Ltd. | Polyester resin composition, light-reflector component containing same, and light reflector |
WO2017110917A1 (ja) * | 2015-12-25 | 2017-06-29 | 東洋紡株式会社 | ポリエステル樹脂組成物、これを含む光反射体用部品および光反射体、ならびにポリエステル樹脂組成物の製造方法 |
JP6197975B1 (ja) * | 2015-12-25 | 2017-09-20 | 東洋紡株式会社 | ポリエステル樹脂組成物、これを含む光反射体用部品および光反射体、ならびにポリエステル樹脂組成物の製造方法 |
CN108473753A (zh) * | 2015-12-25 | 2018-08-31 | 东洋纺株式会社 | 聚酯树脂组合物、含有其的光反射体用元件及光反射体、以及聚酯树脂组合物的制造方法 |
US11001705B2 (en) | 2015-12-25 | 2021-05-11 | Toyobo Co., Ltd. | Polyester resin composition, light-reflector component containing same, light reflector, and method for producing polyester resin composition |
US11001706B2 (en) | 2017-02-02 | 2021-05-11 | Toyobo Co., Ltd. | Polyester resin composition, and light reflector component and light reflector including polyester resin composition |
US11713392B2 (en) | 2017-02-02 | 2023-08-01 | Toyobo Co., Ltd. | Polyester resin composition, and light reflector component and light reflector including polyester resin composition |
US11795298B2 (en) | 2018-03-26 | 2023-10-24 | Toyobo Mc Corporation | Polyester resin composition, light-reflector component containing same, and light reflector |
Also Published As
Publication number | Publication date |
---|---|
TWI383020B (zh) | 2013-01-21 |
TW200613439A (en) | 2006-05-01 |
JP4725514B2 (ja) | 2011-07-13 |
JPWO2005121254A1 (ja) | 2008-04-10 |
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