WO2022176726A1 - 親水性重合体を含む抗ウイルス性樹脂組成物及び成形体 - Google Patents
親水性重合体を含む抗ウイルス性樹脂組成物及び成形体 Download PDFInfo
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- 230000002787 reinforcement Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000012916 structural analysis Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 description 1
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 1
- 241000701161 unidentified adenovirus Species 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L101/00—Compositions of unspecified macromolecular compounds
- C08L101/02—Compositions of unspecified macromolecular compounds characterised by the presence of specified groups, e.g. terminal or pendant functional groups
-
- 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
- C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
- C08L77/12—Polyester-amides
Definitions
- the present invention relates to antiviral resin compositions and molded articles.
- Patent Document 3 polyvinyl alcohol having an amino group was reported as a polymer compound that exhibits antiviral properties without the addition of metal oxides.
- the polyvinyl alcohol having an amino group which is the polymer compound of Patent Document 3
- the present invention can express high antiviral properties by itself without adding additives such as metal oxides, is resistant to water, and can be used as molded articles such as injection molded articles and extrusion molded articles. , films, fibers, non-woven fabrics and foams.
- the present inventors have found that a resin composition containing a hydrophilic polymer and having a water contact angle of 80 degrees or less exhibits antiviral properties by itself without the addition of additives such as metal oxides. I found out. They also found that if the water absorption rate is 25% or less while the contact angle of water is 80 degrees or less, the material is resistant to water.
- the present invention includes a hydrophilic polymer, a water contact angle of 80 degrees or less, a water absorption rate of 25% or less, and an antiviral activity value of 2 or more after 24 hours. It is a viral resin composition.
- the antiviral resin composition of the present invention contains a hydrophilic polymer, has a water contact angle of 80 degrees or less, and a water absorption rate of 25% or less.
- a hydrophilic polymer has a water contact angle of 80 degrees or less, and a water absorption rate of 25% or less.
- the antiviral resin composition of the present invention has an antiviral activity value of 2 or more after 24 hours in the antiviral test (SARS-CoV-2) described later.
- antiviral property means the property of inactivating pathogen viruses.
- the antiviral activity is evaluated by the antiviral activity value (Mv) after 24 hours and the virus reduction rate (%) after 24 hours, which will be described later.
- the resin composition of the present invention contains a hydrophilic polymer and has a water contact angle of 80 degrees or less and a water absorption of 25% or less. Since the larger the contact area with the virus, the better, the contact angle of water is preferably 75 degrees or less. If the water absorption exceeds 25%, the swelling of the molded article increases and the shape stability deteriorates.
- hydrophilic polymer examples include hydrophilic resins such as polyester-based resins, polyamide-based resins, polyimide-based resins, polyether-based resins, and polyurethane-based resins.
- polyester-based resins can be preferably used.
- polyester resins include polyethylene terephthalate, polypropylene terephthalate, polyethylene naphthalate, polybutylene naphthalate, polyhexylene terephthalate, polyethylene-1,2-bis(phenoxy)ethane-4,4'-dicarboxylate,
- copolyesters such as polyethylene isophthalate/terephthalate, polybutylene terephthalate/isophthalate, and polybutylene terephthalate/decane dicarboxylate can be used.
- "/" means a copolymer here.
- thermoplastic polyester elastomers and thermoplastic polyamide elastomers are preferred, and thermoplastic polyester elastomers are more preferred.
- the hydrophilic polymer may be a polymer containing at least one hydrophilic group such as a hydroxyl group, a carbonyl group, an amino group, or a carboxyl group.
- hydrophilic groups such as hydroxyl groups and carboxyl groups have been imparted by corona treatment or plasma treatment.
- the hydrophilic polymer may be a mixture of two or more different polymers. As a specific example, a polymer having a water absorption rate of greater than 25%, such as polyvinyl alcohol, may be mixed with a hydrophobic resin. good.
- thermoplastic polyester elastomer used in the present invention is a copolymer of a high melting point crystalline polymer segment and a low melting point polymer segment.
- the high melting point crystalline polymer segment is a polyester formed from an aromatic dicarboxylic acid or its ester-forming derivative and a diol or its ester-forming derivative.
- aromatic dicarboxylic acid examples include terephthalic acid, isophthalic acid, phthalic acid, naphthalene-2,6-dicarboxylic acid, naphthalene-2,7-dicarboxylic acid, anthracenedicarboxylic acid, and diphenyl-4,4'-dicarboxylic acid. acids, diphenoxyethanedicarboxylic acid, 4,4'-diphenyletherdicarboxylic acid, 5-sulfoisophthalic acid, and sodium 3-sulfoisophthalate.
- the above aromatic dicarboxylic acid is mainly used, but a part of this aromatic dicarboxylic acid is 1,4-cyclohexanedicarboxylic acid, cyclopentanedicarboxylic acid, alicyclic dicarboxylic acid such as 4,4'-dicyclohexyldicarboxylic acid.
- dicarboxylic acids and aliphatic dicarboxylic acids such as adipic acid, succinic acid, oxalic acid, sebacic acid, dodecanedioic acid, and dimer acid.
- ester-forming derivatives of dicarboxylic acids such as lower alkyl esters, aryl esters, carbonate esters, acid halides, and the like, can equally be used.
- two or more of the above acid components can be used.
- examples include combinations of terephthalic acid and isophthalic acid, terephthalic acid and dodecanedioic acid, and terephthalic acid and dimer acid.
- diols in the high melting point crystalline polymer segment include diols having a molecular weight of 400 or less, such as 1,4-butanediol, ethylene glycol, trimethylene glycol, pentamethylene glycol, hexamethylene glycol, and neopentyl.
- aliphatic diols such as glycol and decamethylene glycol
- alicyclic diols such as 1,1-cyclohexanedimethanol, 1,4-dicyclohexanedimethanol and tricyclodecanedimethanol
- the low-melting polymer segment is an aliphatic polyether, it may be used in combination with an aliphatic polyester or an aliphatic polycarbonate.
- aliphatic polyethers include poly(ethylene oxide) glycol, poly(propylene oxide) glycol, poly(trimethylene oxide) glycol, poly(tetramethylene oxide) glycol, poly(hexamethylene oxide) glycol, poly(nona methylene oxide) glycol, copolymers of ethylene oxide and propylene oxide, copolymers of tetramethylene oxide and hexamethylene oxide, copolymers of tetramethylene oxide and nonamethylene oxide, ethylene oxide adducts of poly(propylene oxide) glycol, and Examples include copolymers of ethylene oxide and tetrahydrofuran.
- poly(tetramethylene oxide) glycol and/or ethylene oxide adducts of poly(propylene oxide) glycol and/or copolymers of ethylene oxide and tetrahydrofuran are preferred.
- poly(tetramethylene oxide) glycol and ethylene oxide adducts of poly(propylene oxide) glycol are preferably included.
- poly(propylene oxide) glycol is polypropylene oxide or polypropylene glycol
- poly(tetramethylene oxide) glycol is poly(tetramethylene oxide) or polytetramethylene ether glycol.
- the number average molecular weight of these aliphatic polyethers is preferably 300 to 6000 in the copolymerized state. Number average molecular weight can be measured by common organic analysis.
- aliphatic polyesters include poly( ⁇ -caprolactone), polyenantholactone, polycaprylolactone, polybutylene adipate, and the like.
- the aliphatic polycarbonate preferably consists mainly of aliphatic diol residues having 2 to 12 carbon atoms.
- Examples of these aliphatic diols include ethylene glycol, 1,3-propylene glycol, 1,4-butanediol, 1,5-pentanediol, 1,6-hexanediol, 1,8-octanediol, 2, 2-dimethyl-1,3-propanediol, 3-methyl-1,5-pentanediol, 2,4-diethyl-1,5-pentanediol, 1,9-nonanediol, 2-methyl-1,8- octanediol, and the like.
- the copolymerization ratio of the high melting point crystalline polymer segment and the low melting point polymer segment is more preferably 9% or more, more preferably 20% or more, more preferably 25% or more, more preferably 30% or more, more preferably 35% or more, 40% or more is more preferable, 45% or more is more preferable, and 50% or more is more preferable.
- the copolymerization ratio of the low melting point segment referred to here is the ratio of the low melting point segment unit as a diol component in the low melting point segment. That is, it represents the ratio of the amount obtained by subtracting the amount of water molecules resulting from formation of ester bonds from the low-melting-point segment component of the raw material to the total amount of the copolymer containing the low-melting-point segment, expressed in mass %. If the composition of the raw material is known, it can be calculated directly. It can also be determined by structural analysis of a copolymer containing a low-melting-point segment by NMR.
- the antiviral composition of the present invention may consist only of a hydrophilic polymer, and may optionally contain an antioxidant, an ultraviolet absorber, a light stabilizer, an antistatic agent, an interfacial Additives such as activators, lubricants, dyes, pigments, plasticizers, and flame retardants, and reinforcement such as talc, mica, glass flakes, calcium carbonate, clay, barium sulfate, glass beads, glass fibers, carbon fibers, and cellulose nanofibers. material can be added.
- an antioxidant an ultraviolet absorber
- a light stabilizer an antistatic agent
- an interfacial Additives such as activators, lubricants, dyes, pigments, plasticizers, and flame retardants
- reinforcement such as talc, mica, glass flakes, calcium carbonate, clay, barium sulfate, glass beads, glass fibers, carbon fibers, and cellulose nanofibers. material can be added.
- virus of the present invention examples include influenza virus, coronavirus, SARS-CoV-2, hepatitis C virus, Japanese encephalitis virus, Zika virus, rubella virus, measles virus, human respiratory syncytial virus, rabies virus, Crimea virus, Congo hemorrhagic fever virus, Ebola virus, Marburg virus, hepatitis D virus, smallpox virus, hepatitis B virus, human immunodeficiency virus, norovirus, feline calicivirus, adenovirus, hepatitis A virus, poliovirus, coxsackievirus, enterovirus , rotavirus, parvovirus, astrovirus, sapovirus, and the like.
- the molded article of the present invention is obtained by processing the antiviral resin composition of the present invention.
- Specific embodiments of the molded article of the present invention include injection molded articles, extrusion molded articles, films, fibers, non-woven fabrics, foams, and the like.
- the antiviral resin composition of the present invention is preferably used for the outer layer of articles to be imparted with antiviral properties. That is, it is preferred that a method for providing an article having antiviral properties comprises the step of providing an outer layer of the article, wherein the outer layer comprises the antiviral resin composition of the present invention.
- the outer layer refers to the surface layer of a molded product in which two or more layers are superimposed, or the exposed surface of a single-layer molded product. layer, the exposed surface of an uncoated mask, and the like.
- the antiviral resin composition of the present invention for the outer layer of an article in order to impart antiviral properties to the surface of the article.
- antiviral resin composition of the present invention examples include wallpaper, flooring, curtains, clothing, trash cans, food packaging materials, bandages, masks, bandages, tableware, furniture, toys, bathroom members, toilet members, and kitchens.
- antiviral property means the property of inactivating pathogen viruses.
- the antiviral activity is evaluated by the antiviral activity value Mv after 24 hours and the virus reduction rate (%) after 24 hours, which will be described later.
- Thermoplastic polyester elastomer (A-1) 270.0 parts of terephthalic acid, 234.0 parts of 1,4-butanediol, 0.1 part of tetrabutyl titanate, and 0.1 part of mono-n-butyl-monohydroxytin oxide were esterified using a rectifying column and a stirrer. The mixture was charged in a can and the esterification reaction was started at 160° C. under reduced pressure of 700 mmHg. Thereafter, the temperature was gradually raised, and 59.0 parts of 1,4-butanediol was added continuously. After 3 hours and 40 minutes from the start of the reaction, a clear reaction product was obtained and the reaction was terminated.
- Thermoplastic polyester elastomer (A-2) 501.0 parts of terephthalic acid, 326.0 parts of 1,4-butanediol, 0.3 parts of tetrabutyl titanate, and 0.2 parts of mono-n-butyl-monohydroxytin oxide were added to an ester having a rectifying column and an agitator. It was charged into a reactor, and an esterification reaction was started at 160° C. under reduced pressure of 650 mmHg. Thereafter, the temperature was gradually raised, and 81.0 parts of 1,4-butanediol was continuously added while the degree of pressure reduction was changed to 500 mmHg during the reaction.
- thermoplastic polyester elastomer (A-2) a thermoplastic polyester elastomer (A-2).
- Thermoplastic polyester elastomer (A-3) 591.0 parts of terephthalic acid, 385.0 parts of 1,4-butanediol, 0.3 parts of tetrabutyl titanate, and 0.1 part of mono-n-butyl-monohydroxytin oxide were subjected to a rectification column and an ester having a stirrer. It was charged into a reactor, and an esterification reaction was started at 160° C. under reduced pressure of 500 mmHg. Thereafter, the temperature was gradually raised, and 96.0 parts of 1,4-butanediol was added continuously. After 3 hours and 40 minutes from the start of the reaction, a clear reaction product was obtained and the reaction was terminated.
- thermoplastic polyester elastomer (A-3) [Thermoplastic polyester elastomer (A-4)].
- terephthalic acid 100 parts of isophthalic acid, 296.0 parts of 1,4-butanediol, 0.3 parts of tetrabutyl titanate, and 0.1 part of mono-n-butyl-monohydroxytin oxide were placed in a rectifying column, It was charged into an esterification can having a stirrer, and the esterification reaction was started at 160° C. under reduced pressure of 500 mmHg.
- the pressure was gradually reduced from normal pressure to a high vacuum of 1 mmHg or less over 1 hour, and at the same time, the temperature was raised to 245 ° C. to 245 ° C. and 1 mmHg or less.
- thermoplastic polyester elastomer (A-4) [Thermoplastic polyester elastomer (A-5)] 312 parts of dimethyl terephthalate and 91 parts of dimethyl isophthalate, which are high-melting crystalline polymer segments composed of crystalline aromatic polyester, and poly(propylene) having a number average molecular weight of 2,150, which is a low-melting polymer segment composed of aliphatic polyether units.
- thermoplastic polyester elastomer (A-5) [Thermoplastic polyester elastomer (A-6)] 501.0 parts of terephthalic acid, 326.0 parts of 1,4-butanediol, 0.3 parts of tetrabutyl titanate, and 0.2 parts of mono-n-butyl-monohydroxytin oxide were added to an ester having a rectifying column and an agitator. It was charged into a reactor, and an esterification reaction was started at 160° C. under reduced pressure of 650 mmHg.
- the esterification reaction product was transferred from the esterification can to the polycondensation can. Then, while stirring and polymerizing the reaction system in the polycondensation vessel, the pressure was gradually reduced from normal pressure to a high vacuum of 1 mmHg or less over 1 hour, and at the same time, the temperature was raised to 245 ° C. to 245 ° C. and 1 mmHg or less. Polycondensation was carried out for 3 hours and 30 minutes under these conditions to obtain a thermoplastic polyester elastomer (A-6).
- Thermoplastic polyester elastomer (A-7) 269 parts of dimethyl terephthalate as a high melting point crystalline polymer segment composed of a crystalline aromatic polyester; 725 parts of poly(tetramethylene oxide) glycol having a number average molecular weight of 2000 as a low melting point polymer segment composed of an aliphatic polyether unit; 0 part, 92.4 parts of 1,4-butanediol, and 4 parts of titanium tetrabutoxide were charged into a reactor equipped with a helical ribbon stirring blade and heated at 190 to 225° C. for 3 hours to distill methanol out of the system. I put it out.
- thermoplastic polyester elastomer (A-7) [Thermoplastic polyester elastomer (A-8)] 595 parts of dimethyl terephthalate as a high melting point crystalline polymer segment composed of a crystalline aromatic polyester; 353 poly(tetramethylene oxide) glycol having a number average molecular weight of 1000 as a low melting point polymer segment composed of an aliphatic polyether unit; 0 part, 518 parts of 1,4-butanediol, and 4 parts of titanium tetrabutoxide were charged into a reaction vessel equipped with a helical ribbon stirring blade, heated at 190 to 225° C.
- thermoplastic polyester elastomer (A-7) [PBT resin (B)] Toraycon TM 1100S (manufactured by Toray Industries, Inc.). A polymer of terephthalic acid and 1,4-butanediol.
- Thermoplastic polyamide elastomer (C) A pressure vessel was charged with 98.00 parts of 12-aminododecanoic acid and 7.66 parts of adipic acid. After purging with nitrogen, the system was gradually heated while nitrogen gas was supplied, and polymerization was carried out at 230°C for 4 hours to synthesize an oligomer of nylon 12. To this oligomer were added 642.5 parts of poly(tetramethylene oxide) glycol having a number average molecular weight of 1800, 0.20 part of tetrabutyl zirconate and 0.50 part of antioxidant "IRGANOX" 1098 (manufactured by BASF). After purging with nitrogen, the mixture was gradually heated while supplying nitrogen gas, heated at 210° C.
- thermoplastic polyamide elastomer (C) a thermoplastic polyamide elastomer (C).
- Injection molding was performed using an injection molding machine NEX-1000 manufactured by Nissei Plastic Industry Co., Ltd. to obtain a square plate-shaped test piece of 80 mm ⁇ 80 mm ⁇ 1 mm from the pellet. Since it can be injection molded, it can be processed into injection molded articles, extruded articles, films, fibers, non-woven fabrics and foams.
- the contact angle was measured basically according to JISR3257. About 2 ⁇ L of purified water was dropped with a syringe on a square plate-shaped test piece of 80 mm ⁇ 80 mm ⁇ 1 mm obtained by vacuum drying at 80° C. for 5 hours, and then the contact angle was measured 1 minute after the drop was applied. The contact angle was measured using FTA188 (manufactured by First Ten Angstrom).
- Antiviral test The antiviral activity was measured basically according to JISZ2801:2012 antibacterial processed product antibacterial activity test.
- SARS-CoV-2/JP/Hiroshima-46059T/2020 strain (Pango Lineage: B.1.1) was used as the virus, and VeroE6/TMPRSS2 cells (JCRB1819: purchased from JCRB cell bank) were used as cultured cells.
- VeroE6/TMPRSS2 cells JCRB1819: purchased from JCRB cell bank
- test piece was cut into 5 cm squares, immersed in 80% ethanol for disinfection, and then dried in a safety cabinet while blowing sterile air through a HEPA filter. 400 ⁇ l of the virus solution was dropped on the test piece, and a parafilm (4 cm square) sterilized with ethanol was covered from above to spread the virus solution evenly.
- the cells were placed in a wet box at 23°C and allowed to react at room temperature for 0 or 24 hours, after which the virus solution was recovered. Time 0 means that the virus was recovered within 1 minute after dropping the virus liquid onto the test piece.
- the reacted virus solution was serially diluted 10 - fold with DMEM to obtain 10-1 to 10-8 -fold dilutions.
- 50 ⁇ l of each dilution was inoculated into 4 wells of cells in a 96-well plate, and after 1 hour of adsorption, the inoculum was replaced with 100 ⁇ l/well of DMEM.
- infection was determined using the appearance of cytopathic effect as an index, and the 50% tissue culture infectious dose (TCID 50 )/ml was calculated using the Behrens-Kraber algorithm as the virus infection titer.
- the virus infectivity titer is indicated by E (JIS X0210:1986).
- Antiviral test (FCV) The antiviral activity was measured basically according to JISZ2801:2012 antibacterial processed product antibacterial activity test.
- Feline calicivirus (FCV) strain F9 (ATCC VR-782) was used as the virus, and CRFK cells (ATCC CCL-94) were used as culture cells.
- FCV Feline calicivirus
- CRFK cells ATCC CCL-94
- the test piece was cut into 5 cm squares and irradiated with ultraviolet rays for 30 minutes on each side in a safety cabinet for disinfection. 400 ⁇ l of the virus solution was dropped on the test piece, and a parafilm (4 cm square) sterilized with ethanol was covered from above to spread the virus solution evenly. The cells were placed in a wet box at 23°C and allowed to react at room temperature for 0 or 24 hours, after which the virus solution was recovered. Time 0 means that the virus was collected within 1 minute after dropping the virus solution onto the test piece.
- the reacted virus solution was serially diluted 10 - fold with DMEM to obtain 10-1 to 10-8 -fold dilutions.
- 50 ⁇ l of each dilution was inoculated into 4 wells of cells in a 96-well plate, and after 1 hour of adsorption, the inoculum was replaced with 100 ⁇ l/well of DMEM.
- infection was determined using the appearance of cytopathic effect as an index, and the 50% tissue culture infectious dose (TCID 50 )/ml was calculated using the Behrens-Kraber algorithm and used as the virus infection titer.
- Antiviral test (influenza virus)
- Antiviral activity was measured according to ISO21702 (2019).
- the virus used was the influenza virus (INFLUENZA A VIRUS (H3N2): ATCC VR-1679).
- the experiment was conducted at Boken Quality Evaluation Organization.
- the amount of test liquid intake was 0.4 mL, and SCDLP medium was used as the washing liquid. Note that 0 hours means that the virus solution was collected immediately after inoculation.
- Antiviral activity value The antiviral activity value (Mv) after 24 hours and the virus reduction rate (%) after 24 hours are obtained by the following formula, with the virus infectivity value after 0 hours as Vb and the virus infectivity value after 24 hours as Vc. rice field.
- Antiviral activity value after 24 hours (Mv) lg10 (Vb) - lg10 (Vc)
- Virus reduction rate (%) after 24 hours [(Vb ⁇ Vc) ⁇ 100]/Vb.
- Example 2 Using the above thermoplastic polyester elastomer (A-1), evaluation was performed by changing the virus species from Example 1.
- Example 3 Using the above thermoplastic polyester elastomer (A-1), evaluation was performed by changing the virus species from Example 1.
- Example 7 Evaluation was carried out using the above thermoplastic polyester elastomer (A-5).
- Example 8 Evaluation was carried out using the above thermoplastic polyester elastomer (A-6).
- Example 9 Evaluation was performed using the above thermoplastic polyamide elastomer (C).
- Tables 1 and 2 show the materials, water absorption rates, contact angles, virus infectivity values at 0 hours and 24 hours, antiviral activity values after 24 hours, and virus reduction rates after 24 hours in Examples and Comparative Examples.
- thermoplastic polyester elastomers (A-1), (A-2), (A-3), (A-4), (A-5), ( It can be seen that A-6), (A-7), (A-8) and thermoplastic polyamide elastomer (C) are highly effective in reducing viruses.
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Abstract
Description
本発明の樹脂組成物は親水性重合体を含み、水の接触角が80度以下、吸水率が25%以下である。ウイルスとの接触面積が大きいほど良いため、水の接触角は75度以下が好ましい。吸水率は25%を超えると成形品の膨潤が大きくなり形状安定性が悪くなる。
本発明に用いられる親水性重合体の具体例として、ポリエステル系樹脂、ポリアミド系樹脂、ポリイミド系樹脂、ポリエーテル系樹脂、ポリウレタン系樹脂等の親水性樹脂が挙げられる。これらのうち、ポリエステル系樹脂が好ましく使用できる。ポリエステル系樹脂の好ましい例としては、ポリエチレンテレフタレート、ポリプロピレンテレフタレート、ポリエチレンナフタレート、ポリブチレンナフタレート、ポリヘキシレンテレフタレート、ポリエチレン-1,2-ビス(フェノキシ)エタン-4,4’-ジカルボキシレート、ポリシクロヘキサン-1,4-ジメチロールテレフタレート、熱可塑性ポリエステルエラストマーなどのほか、ポリエチレンイソフタレート/テレフタレート、ポリブチレンテレフタレート/イソフタレート、ポリブチレンテレフタレート/デカンジカルボキシレートなどの共重合ポリエステルが挙げられる。なお、ここで「/」は共重合体を意味する。中でも、熱可塑性ポリエステルエラストマー、熱可塑性ポリアミドエラストマーが好ましく、熱可塑性ポリエステルエラストマーがより好ましい。
本発明に用いられる熱可塑性ポリエステルエラストマーは、高融点結晶性重合体セグメントと低融点重合体セグメントの共重合体である。
テレフタル酸270.0部、1,4-ブタンジオール234.0部およびテトラブチルチタネート0.1部、モノn-ブチル-モノヒドロキシスズオキサイド0.1部を精留塔、撹拌機を有するエステル化缶に仕込み、160℃、700mmHgの減圧下でエステル化反応を開始した。その後、徐々に昇温するとともに、さらに1,4-ブタンジオール59.0部を連続的に追加添加した。反応を開始してから3時間40分後に透明な反応生成物を得て、反応を終了させた。エステル化反応終了後、重縮合触媒としてテトラブチルチタネート1.8部、安定剤として“IRGANOX”1330(BASF社製)1.0部をエステル化缶に添加し、一方、数平均分子量1400のポリ(テトラメチレンオキシド)グリコール686.0部を重縮合缶に仕込んだ後、上記のエステル化反応生成物をエステル化缶から重縮合缶へ移行した。そして、重縮合缶内の反応系を撹拌重合させながら、常圧から1mmHg以下の高真空度まで1時間かけて徐々に減圧系にし、同時に245℃に昇温して、245℃,1mmHg以下の条件下で3時間30分重縮合せしめ、熱可塑性ポリエステルエラストマー(A-1)を得た。
テレフタル酸501.0部、1,4-ブタンジオール量326.0部およびテトラブチルチタネート0.3部、モノn-ブチル-モノヒドロキシスズオキサイド0.2部を精留塔、撹拌機を有するエステル化缶に仕込み、160℃、650mmHgの減圧下でエステル化反応を開始した。その後、徐々に昇温するとともに、さらに1,4-ブタンジオール81.0部を連続的に追加添加しながら、反応途中から減圧度を500mmHgに変更した。反応を開始してから3時間40分後に透明な反応生成物を得て、反応を終了させた。エステル化反応終了後、重縮合触媒としてテトラブチルチタネート2.0部、安定剤として“IRGANOX”1098(BASF社製)0.5部をエステル化缶に添加し、一方、数平均分子量1400のポリ(テトラメチレンオキシド)グリコール354.0部を重縮合缶に仕込んだ後、上記のエステル化反応生成物をエステル化缶から重縮合缶へ移行した。そして、重縮合缶内の反応系を撹拌重合させながら、常圧から1mmHg以下の高真空度まで1時間かけて徐々に減圧系にし、同時に245℃に昇温して、245℃,1mmHg以下の条件下で3時間30分重縮合せしめ、熱可塑性ポリエステルエラストマー(A-2)を得た。
テレフタル酸591.0部、1,4-ブタンジオール量385.0部およびテトラブチルチタネート0.3部、モノn-ブチル-モノヒドロキシスズオキサイド0.1部を精留塔、撹拌機を有するエステル化缶に仕込み、160℃、500mmHgの減圧下でエステル化反応を開始した。その後、徐々に昇温するとともに、さらに1,4-ブタンジオール96.0部を連続的に追加添加した。反応を開始してから3時間40分後に透明な反応生成物を得て、反応を終了させた。エステル化反応終了後、重縮合触媒としてテトラブチルチタネート1.5部、安定剤として“IRGANOX”1098(BASF社製)0.5部をエステル化缶に添加し、一方、数平均分子量1400のポリ(テトラメチレンオキシド)グリコール231.0部を重縮合缶に仕込んだ後、上記のエステル化反応生成物をエステル化缶から重縮合缶へ移行した。そして、重縮合缶内の反応系を撹拌重合させながら、常圧から1mmHg以下の高真空度まで1時間かけて徐々に減圧系にし、同時に245℃に昇温して、245℃,1mmHg以下の条件下で3時間30分重縮合せしめ、熱可塑性ポリエステルエラストマー(A-3)を得た
[熱可塑性ポリエステルエラストマー(A-4)]
テレフタル酸340.0部、イソフタル酸100部、1,4-ブタンジオール量296.0部およびテトラブチルチタネート0.3部、モノn-ブチル-モノヒドロキシスズオキサイド0.1部を精留塔、撹拌機を有するエステル化缶に仕込み、160℃、500mmHgの減圧下でエステル化反応を開始した。その後、徐々に昇温するとともに、さらに1,4-ブタンジオール74.0部を連続的に追加添加した。反応を開始してから3時間40分後に透明な反応生成物を得て、反応を終了させた。エステル化反応終了後、重縮合触媒としてテトラブチルチタネート1.9部、安定剤として“IRGANOX”1098(BASF社製)0.5部をエステル化缶に添加し、一方、数平均分子量1400のポリ(テトラメチレンオキシド)グリコール495.0部を重縮合缶に仕込んだ後、上記のエステル化反応生成物をエステル化缶から重縮合缶へ移行した。そして、重縮合缶内の反応系を撹拌重合させながら、常圧から1mmHg以下の高真空度まで1時間かけて徐々に減圧系にし、同時に245℃に昇温して、245℃,1mmHg以下の条件下で3時間30分重縮合せしめ、熱可塑性ポリエステルエラストマー(A-4)を得た
[熱可塑性ポリエステルエラストマー(A-5)]
結晶性芳香族ポリエステルからなる高融点結晶性重合体セグメントとなるテレフタル酸ジメチル312部およびイソフタル酸ジメチル91部、脂肪族ポリエーテル単位からなる低融点重合体セグメントとなる数平均分子量2150のポリ(プロピレンオキシド)グリコールのエチレンオキシド付加物537部、さらに1,4-ブタンジオール167部、チタンテトラブトキシド4部をヘリカルリボン型撹拌翼を備えた反応容器に仕込み、190~225℃で3時間加熱してメタノールを系外に留出した。反応混合物に“IRGANOX”1098および1019(BASF社製)各2部を添加した後、243℃に昇温し、次いで50分かけて系内の圧力を0.2mmHgの減圧とし、その条件下で3時間重合を行い、熱可塑性ポリエステルエラストマー(A-5)を得た
[熱可塑性ポリエステルエラストマー(A-6)]
テレフタル酸501.0部、1,4-ブタンジオール量326.0部およびテトラブチルチタネート0.3部、モノn-ブチル-モノヒドロキシスズオキサイド0.2部を精留塔、撹拌機を有するエステル化缶に仕込み、160℃、650mmHgの減圧下でエステル化反応を開始した。その後、徐々に昇温するとともに、さらに1,4-ブタンジオール81.0部を連続的に追加添加しながら、反応途中から減圧度を500mmHgに変更した。反応を開始してから3時間40分後に透明な反応生成物を得て、反応を終了させた。エステル化反応終了後、重縮合触媒としてテトラブチルチタネート2.0部、安定剤として“IRGANOX”1098(BASF社製)0.5部をエステル化缶に添加し、一方、数平均分子量1400のテトラメチレンオキシドとノナメチレンオキシドの共重合体354.0部を重縮合缶に仕込んだ後、上記のエステル化反応生成物をエステル化缶から重縮合缶へ移行した。そして、重縮合缶内の反応系を撹拌重合させながら、常圧から1mmHg以下の高真空度まで1時間かけて徐々に減圧系にし、同時に245℃に昇温して、245℃,1mmHg以下の条件下で3時間30分重縮合せしめ、熱可塑性ポリエステルエラストマー(A-6)を得た。
結晶性芳香族ポリエステルからなる高融点結晶性重合体セグメントとなるテレフタル酸ジメチル269部、脂肪族ポリエーテル単位からなる低融点重合体セグメントとなる数平均分子量2000のポリ(テトラメチレンオキシド)グリコール725.0部、さらに1,4-ブタンジオール92.4部、チタンテトラブトキシド4部をヘリカルリボン型撹拌翼を備えた反応容器に仕込み、190~225℃で3時間加熱してメタノールを系外に留出した。反応混合物に“IRGANOX”1098および1019(BASF社製)各1.5部を添加した後、243℃に昇温し、次いで50分かけて系内の圧力を0.2mmHgの減圧とし、その条件下で3時間重合を行い、熱可塑性ポリエステルエラストマー(A-7)を得た
[熱可塑性ポリエステルエラストマー(A-8)]
結晶性芳香族ポリエステルからなる高融点結晶性重合体セグメントとなるテレフタル酸ジメチル595部、脂肪族ポリエーテル単位からなる低融点重合体セグメントとなる数平均分子量1000のポリ(テトラメチレンオキシド)グリコール353.0部、さらに1,4-ブタンジオール518部、チタンテトラブトキシド4部をヘリカルリボン型撹拌翼を備えた反応容器に仕込み、190~225℃で3時間加熱してメタノールを系外に留出した。反応混合物に“IRGANOX”1098および1019(BASF社製)各1.5部を添加した後、243℃に昇温し、次いで50分かけて系内の圧力を0.2mmHgの減圧とし、その条件下で3時間重合を行い、熱可塑性ポリエステルエラストマー(A-7)を得た
[PBT樹脂(B)]
トレコンTM1100S(東レ(株)社製)。テレフタル酸と1,4-ブタンジオールの重合体。
圧力容器に12-アミノドデカン酸98.00部及びアジピン酸7.66部を仕込んだ。窒素置換後、窒素ガスを供給しながら徐々に加熱し、230℃で4時間重合を行い、ナイロン12のオリゴマーを合成した。このオリゴマーに数平均分子量1800のポリ(テトラメチレンオキシド)グリコール642.5部、テトラブチルジルコネート0.20部及び酸化防止剤“IRGANOX”1098(BASF社製)0.50部を仕込んだ。窒素置換後、窒素ガスを供給しながら徐々に加熱し、210℃で3時間加熱し、次に徐々に減圧を行い、1時間かけて50Paとし、2時間重合を行った後、さらに30分かけて昇温、減圧を行い、230℃、30Paで3時間重合を行って、熱可塑性ポリアミドエラストマー(C)を得た。
日精樹脂工業(株)製の射出成形機NEX-1000を用いて射出成形を行い、ペレットから80mmx80mmx1mmの角板状の試験片を得た。射出成形が行えていることから、射出成形品、押出成形品、フィルム、繊維、不織布及び発泡体に加工することができる。
80℃で5時間、真空乾燥して得た80mmx80mmx1mmの角板状試験片を23度の水に24時間浸漬後、浸漬前後の試験片の重量差を処理前の試験片の重量で除してパ-セント表示した値である。
接触角の測定は、基本的にJISR3257に準じて行った。80℃で5時間、真空乾燥して得た80mmx80mmx1mmの角板状試験片に約2μLの精製水をシリンジで滴下させた後、着滴1分後の接触角を測定した。なお、接触角の測定は、FTA188(First Ten Angstrom社製)を用いた。
抗ウイルス活性の測定は,基本的にJISZ2801:2012抗菌加工製品抗菌性試験に準じて行った。
抗ウイルス活性の測定は,基本的にJISZ2801:2012抗菌加工製品抗菌性試験に準じて行った。
抗ウイルス活性の測定は,ISO21702(2019)に準じて行った。
24時間後の抗ウイルス活性値(Mv)及び24時間後のウイルス低減率(%)は、0時間後のウイルス感染価をVb、24時間後のウイルス感染価をVcとし、下記の式により求めた。
24時間後の抗ウイルス活性値(Mv)=lg10(Vb)-lg10(Vc)
24時間後のウイルス低減率(%)=[(Vb-Vc)×100]/Vb。
上記熱可塑性ポリエステルエラストマ(A-1)を用いて評価を行った。
上記熱可塑性ポリエステルエラストマ(A-1)を用いて、実施例1とウイルス種を変えて、評価を行った。
上記熱可塑性ポリエステルエラストマ(A-1)を用いて、実施例1とウイルス種を変えて、評価を行った。
上記熱可塑性ポリエステルエラストマ(A-2)を用いて評価を行った。
上記熱可塑性ポリエステルエラストマ(A-3)を用いて評価を行った。
上記熱可塑性ポリエステルエラストマ(A-4)を用いて評価を行った。
上記熱可塑性ポリエステルエラストマ(A-5)を用いて評価を行った。
上記熱可塑性ポリエステルエラストマ(A-6)を用いて評価を行った。
上記熱可塑性ポリアミドエラストマ(C)を用いて評価を行った。
上記熱可塑性ポリエステルエラストマ(A-7)を用いて評価を行った。
上記熱可塑性ポリエステルエラストマ(A-8)を用いて評価を行った。
上記PBT樹脂(B)を用いて評価を行った。
上記PBT樹脂(B)を用いて、比較例1とウイルス種を変えて、評価を行った。
Claims (3)
- 親水性重合体を含み、水の接触角が80度以下、吸水率が25%以下であり、24時間後の抗ウイルス活性値が2以上であることを特徴とする抗ウイルス性樹脂組成物。
- 親水性重合体が熱可塑性ポリエステルエラストマーを含むことを特徴とする請求項1に記載の抗ウイルス性樹脂組成物。
- 請求項1または2に記載の抗ウイルス性樹脂組成物を加工してなる成形体。
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CN202280013198.XA CN116917410A (zh) | 2021-02-16 | 2022-02-09 | 包含亲水性聚合物的抗病毒性树脂组合物和成型体 |
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH11323659A (ja) * | 1998-05-08 | 1999-11-26 | Toray Ind Inc | ポリアミド系弾性繊維およびその製造法ならびに織編物 |
JP2018168212A (ja) * | 2017-03-29 | 2018-11-01 | 東レ・デュポン株式会社 | 熱可塑性エラストマー組成物 |
JP2020040267A (ja) * | 2018-09-10 | 2020-03-19 | イビデン株式会社 | 機能性部材 |
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JPH11323659A (ja) * | 1998-05-08 | 1999-11-26 | Toray Ind Inc | ポリアミド系弾性繊維およびその製造法ならびに織編物 |
JP2018168212A (ja) * | 2017-03-29 | 2018-11-01 | 東レ・デュポン株式会社 | 熱可塑性エラストマー組成物 |
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