Classifications

• • 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
  • C08K3/08—Metals
• • 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
  • C08K5/16—Nitrogen-containing compounds
  • C08K5/34—Heterocyclic compounds having nitrogen in the ring
  • C08K5/3412—Heterocyclic compounds having nitrogen in the ring having one nitrogen atom in the ring
  • C08K5/3432—Six-membered rings
  • C08K5/3435—Piperidines
• • 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
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
  • Y02W30/00—Technologies for solid waste management
  • Y02W30/50—Reuse, recycling or recovery technologies
  • Y02W30/62—Plastics recycling; Rubber recycling

Definitions

• the present invention relates to resin compositions.
• Patent Document 1 a resin composition in which silver and various resin materials are mixed.
• thermoplastic resins are widely used due to their excellent workability, safety, and recyclability.
• thermoplastic resins are inferior in weather resistance, it is known that addition of a piperidine derivative improves weather resistance.
• the present inventor investigated the blending of a functional silver compound and a piperidine derivative. I faced the problem that it is difficult to use for the purpose.
• the present inventors have found that the use of a piperidine derivative having a specific structure suppresses color tone change when used in combination with a functional silver compound, and have completed the present invention. That is, the invention is as follows. 1. A resin composition comprising a thermoplastic resin containing a functional silver compound and a piperidine derivative, wherein the piperidine derivative is of non--NH type. 2. 2. The resin composition as described in 1 above, wherein the piperidine derivative is of NR type, N-OR type or N-OH type. 3. 3. The resin composition according to 1 or 2 above, wherein the piperidine derivative is contained in an amount of 0.05 to 10% by mass with respect to the thermoplastic resin. 4. 4. The resin composition as described in any one of 1 to 3 above, which does not contain a pigment.
• the resin composition of the present invention comprises a thermoplastic resin, a functional silver compound and a specific piperidine derivative.
• the thermoplastic resin is not particularly limited as long as it can be used for melt molding, but various polyolefins, polyamides, polyesters, etc. can be preferably used, and have an aliphatic, alicyclic or aromatic structure. may be
• the resin composition of the present invention uses a polyolefin resin that particularly requires whiteness.
• polyolefin resins include polyethylene, polypropylene, polybutene, polymethylpentene, cyclic olefins, and copolymer compositions thereof. More preferred are collapsible polyolefins having a high tertiary carbon ratio, such as polybutene, polypropylene, and polymethylpentene, and their respective copolymer compositions.
• the resin composition of the present invention contains a functional silver compound.
• the functional silver compound in the present invention is a general term for materials in which silver ions are retained in inorganic compounds, materials in which silver oxides are supported on the surface of inorganic oxides, and organic silver compounds.
• the material holding silver ions can be preferably used as long as it stably holds silver ions in a crystal lattice or an amorphous structure. Examples include flexible glass, intercalation compounds, clay minerals, and the like.
• the material in which silver is supported on the surface of an inorganic oxide is not particularly limited as long as desired properties can be obtained. For example, titanium oxide, zinc oxide, and the like used as white pigments are more preferable carriers.
• the organic silver compound is not particularly limited as long as the desired properties can be obtained.
• a compound can be preferably used.
• the content of the functional silver compound in the resin composition of the present invention is preferably in the range of 0.01 to 10000 mg/kg, more preferably 0.05 to 5000 mg/kg in terms of metallic silver. It is preferably 0.1 to 1000 mg/kg, more preferably 0.1 to 1000 mg/kg. If it is less than 0.01 mg/kg, it becomes difficult to develop functionality, and if it exceeds 10,000 mg/kg, problems arise in processability and cost.
• a piperidine derivative is contained together with the above thermoplastic resin and functional silver compound.
• the piperidine derivative is not particularly limited as long as it has the desired properties, but in the present invention, at least one of the secondary amines derived from the piperidine structure contained in the molecule is non-NH type.
• the non-NH type is characterized in that the hydrogen of the secondary amine derived from the piperidine ring is converted to another element or substituent. That is, NR type substituted with an alkyl group such as aliphatic, alicyclic, or aromatic, N—OH type or N substituted with an oxygen-containing functional group such as a hydroxyl group, linear or cyclic ether derivative, etc. It is preferably of -OR type. Although the specific mechanism is unknown, it is thought that the reduction of silver ions or the silver substitution reaction by amino groups is suppressed, and the formation of metallic silver and the formation of silver-amine associations that absorb visible light are suppressed. .
• the hydrogen atoms at the 2- and 6-positions are preferably substituted with 1 to 4 alkyl groups, and specific alkyl groups include ethyl, methyl, propyl and butyl.
• specific alkyl groups include ethyl, methyl, propyl and butyl.
• a combination of two or more types or an isomer of the alkyl group can be preferably used depending on the required properties.
• Piperidine derivatives used in the present invention can be synthesized or obtained as reagents or industrial raw materials. , TINUVIN PA144, TINUVIN765, TINUVIN152, TINUVIN123, TINUVIN249 manufactured by BASF, and SABO STAB (registered trademark) UV119 manufactured by SABO.
• the blending ratio of the piperidine derivative is preferably 0.05 to 10% by mass, more preferably 0.1 to 5% by mass, and still more preferably 0.2 with respect to the thermoplastic resin. to 3% by weight, particularly preferably 0.3 to 1.5% by weight. If the content is too small, it is difficult to obtain an effective effect, and if it is too large, the workability and resin properties are lowered.
• the resin composition of the present invention can be used in various forms such as a molded body by injection molding, a sheet form by extrusion molding, a film form, a fiber form, and a powder form.
• Example 1 100 parts by mass of a polypropylene homopolymer of MFR60, 1 part by mass of SABO STAB (registered trademark) UV119 having an N-CH3-type piperidine structure in which the 2 and 6 positions are dimethyl-substituted, and TOMATEC as a functional silver compound 10 parts by mass of nanofas (fatty acid-silver cluster nano-dispersion) was added and pelletized at 250° C. using a twin-screw extruder. By visual inspection, no clear change in color tone was observed in the obtained pellets.
• SABO STAB registered trademark
• UV119 having an N-CH3-type piperidine structure in which the 2 and 6 positions are dimethyl-substituted
• TOMATEC as a functional silver compound 10 parts by mass of nanofas (fatty acid-silver cluster nano-dispersion) was added and pelletized at 250° C. using a twin-screw extruder.
• Example 2 100 parts by mass of a polypropylene homopolymer of MFR60, 1 part by mass of SABO STAB (registered trademark) UV119 having an N-CH3-type piperidine structure in which the 2 and 6 positions are dimethyl-substituted, and Ishizuka Glass Co., Ltd. as a functional silver compound.
• 1 part by mass of Ionpure ZAF HS (silver phosphate glass) manufactured by Ionpure Co., Ltd. was mixed and pelletized at 250° C. using a twin-screw extruder. By visual inspection, no clear change in color tone was observed in the obtained pellets.
• ⁇ Reference example 1> To 100 parts by mass of a polypropylene homopolymer of MFR 60, 10 parts by mass of NANOFAS (fatty acid-silver cluster nanodispersion) manufactured by TOMATEC Co., Ltd. was added, and pelletized at 250°C using a twin-screw extruder. By visual inspection, no clear change in color tone was observed in the obtained pellets.
• NANOFAS fatty acid-silver cluster nanodispersion
• Ionpure ZAF HS silver phosphate glass

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• Chemical & Material Sciences (AREA)
• Health & Medical Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Medicinal Chemistry (AREA)
• Polymers & Plastics (AREA)
• Organic Chemistry (AREA)
• Compositions Of Macromolecular Compounds (AREA)

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Citations (3)

• 2022
  • 2022-11-02 JP JP2023519945A patent/JPWO2023080162A1/ja active Pending
  • 2022-11-02 WO PCT/JP2022/041014 patent/WO2023080162A1/ja not_active Ceased

Patent Citations (3)

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