WO2015163022A1 - ポリシロキサン共重合体及びそれを含有する帯電防止剤 - Google Patents
ポリシロキサン共重合体及びそれを含有する帯電防止剤 Download PDFInfo
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- WO2015163022A1 WO2015163022A1 PCT/JP2015/056740 JP2015056740W WO2015163022A1 WO 2015163022 A1 WO2015163022 A1 WO 2015163022A1 JP 2015056740 W JP2015056740 W JP 2015056740W WO 2015163022 A1 WO2015163022 A1 WO 2015163022A1
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- imide
- trifluoromethanesulfonyl
- trimethoxysilyl
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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
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/04—Polysiloxanes
- C08G77/22—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen and oxygen
- C08G77/26—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen and oxygen nitrogen-containing groups
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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
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/04—Polysiloxanes
- C08G77/22—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen and oxygen
- C08G77/30—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen and oxygen phosphorus-containing groups
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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
- C08L101/00—Compositions of unspecified macromolecular compounds
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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
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
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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
- C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
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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
- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
- C08L83/04—Polysiloxanes
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/16—Anti-static materials
Definitions
- the present invention relates to a polysiloxane copolymer and an antistatic agent containing the same.
- an onium salt in which the cation is ammonium or phosphonium having a trialkoxysilylalkyl group and the anion is perfluoroalkylsulfonylimide can be used as a low molecular weight antistatic agent for a fluororesin.
- Patent Document 1 1- (3-trimethoxysilylpropyl) -1,1,1-tributylphosphonium bis (trifluoromethanesulfonyl) imide, which is one of the onium salts, as a polycarbonate resin, an acrylic resin, and a silicone.
- the present invention relates to a polysiloxane copolymer capable of providing a high antistatic property to a polycarbonate resin, an acrylic resin, and a silicone resin, and capable of producing a silicone resin having practical strength characteristics as an optical adhesive, and the polysiloxane It is an object to provide an antistatic agent containing a copolymer.
- a polysiloxane copolymer obtained by copolymerizing an onium salt represented by the formula (1) and a dialkoxysilane represented by the formula (2) is used.
- the polysiloxane copolymer was used as an antistatic agent in a polycarbonate resin, an acrylic resin and a silicone resin, it was found that high antistatic performance could be imparted to each resin.
- the present inventors have found that a silicone resin composition having a practical strength characteristic as an optical pressure-sensitive adhesive can be obtained by smoothly proceeding the curing reaction of the silicone resin, and completed the present invention.
- the present invention copolymerizes an onium salt represented by formula (1) (hereinafter referred to as onium salt (1)) and a dialkoxysilane represented by formula (2) (hereinafter referred to as dialkoxysilane (2)).
- onium salt (1) an onium salt represented by formula (1)
- dialkoxysilane (2) a dialkoxysilane represented by formula (2)
- the polysiloxane copolymer obtained by this.
- Q + represents a nitrogen cation or a phosphor cation.
- R 1 represents an alkyl group having 1 to 3 carbon atoms
- R 2 to R 4 represent an alkyl group having 1 to 8 carbon atoms.
- R 2 and R 3 may be bonded to each other at the end to form a pyrrolidine ring, piperidine ring, pyridine ring, phosphorane ring, phosphorinan ring or phospholine ring, provided that R 4 does not exist when a pyridine ring or a phospholine ring is formed.
- X ⁇ represents an anion
- n is an integer of 0 to 3.
- R 5 represents an alkyl group having 1 to 10 carbon atoms, an aryl group having 6 to 10 carbon atoms, or an aralkyl group having 7 to 10 carbon atoms
- R 6 represents an alkyl group having 1 to 3 carbon atoms.
- the polysiloxane copolymer of the present invention can be used as an antistatic agent, and a resin composition having high antistatic performance can be produced by using the antistatic agent in a polycarbonate resin, an acrylic resin and a silicone resin. Moreover, when the polysiloxane copolymer of the present invention is used, a silicone resin composition having practical strength characteristics as an optical pressure-sensitive adhesive can be produced.
- Q + represents a nitrogen cation or a phosphorus cation, and preferably a phosphorus cation.
- R 1 is an alkyl group having 1 to 3 carbon atoms, and specific examples thereof include a methyl group, an ethyl group, a propyl group, and an isopropyl group. A methyl group and an ethyl group are preferable, and a methyl group is particularly preferable.
- R 2 to R 4 represent an alkyl group having 1 to 8 carbon atoms, which may be either linear or branched, and is preferably a linear alkyl group.
- R 2 and R 3 may be bonded to each other at the terminal to form a pyrrolidine ring, piperidine ring, pyridine ring, phosphorane ring, phosphorinane ring or phospholine ring.
- X ⁇ represents an anion.
- X ⁇ includes a halogen anion or a fluorine-containing anion.
- the halogen anion is preferably a chloro anion, a bromo anion, or an iodo anion, and more preferably a chloro anion.
- a trifluoromethanesulfonic acid anion a bis (trifluoromethanesulfonyl) imide anion, a tetrafluoroborate anion, and a hexafluorophosphate anion are preferable, and a bis (trifluoromethanesulfonyl) imide anion is more preferable.
- the onium salt (1) used in the present invention can be produced according to the method described in JP 2010-248165 A.
- the representative method is illustrated in the following reaction formula 1.
- R 1 , R 2 , R 3 , R 4 , Q, X and n are the same as above, Z represents a halogen atom, and M represents an alkali metal.
- amine represented by formula (5) (hereinafter referred to as amine (5a)) or phosphine (hereinafter referred to as phosphine (5b)) is converted to an alkyl halide represented by formula (6) (hereinafter referred to as “phosphine”).
- phosphine alkyl halide represented by formula (6)
- onium halides (7) can be used as the onium salt (1).
- onium halides (7) and an alkyl metal salt represented by the formula (8).
- the onium salt (1) can be produced by an ion exchange reaction with
- amines (5a) trimethylamine, triethylamine, tripropylamine, tributylamine, tripentylamine, trihexylamine, triheptylamine, trioctylamine,
- phosphines (5b) examples include trimethylphosphine, triethylphosphine, tripropylphosphine, tributylphosphine, tripentylphosphine, trihexylphosphine, triheptylphosphine, trioctylphosphine,
- alkyl halides (6) include chloromethyltrimethoxysilane, 2-chloroethyltrimethoxysilane, 3-chloropropyltrimethoxysilane, 4-chlorobutyltrimethoxysilane, chloromethyltriethoxysilane, 2-chloro Ethyltriethoxylane, 3-chloropropyltriethoxysilane, 4-chlorobutyltriethoxysilane, chloromethyltripropoxysilane, 2-chloroethyltripropoxysilane, 3-chloropropyltripropoxysilane, 4-chlorobutyltripropoxysilane Chloromethyltributoxysilane, 2-chloroethyltributoxysilane, 3-chloropropyltributoxysilane, 4-chlorobutyltributoxysilane, bromomethyltrimethoxysilane, 2-bromoethyltrimethoxysilane
- the quaternization reaction between the amines or phosphines represented by the formula (5) and the alkyl halides (6) may or may not use a solvent.
- the solvent when using the solvent include alcohols such as methanol, ethanol and 2-propanol, acetonitrile, ethyl acetate, tetrahydrofuran, dimethylformamide and the like.
- the amount of alkyl halides (6) used may be 0.7 moles or more, preferably 0, 9 to 1.5 moles per mole of amines or phosphines represented by formula (5). is there.
- alkali metal salt (8) examples include bis (trifluoromethanesulfonyl) imide lithium, bis (trifluoromethanesulfonyl) imide sodium, bis (trifluoromethanesulfonyl) imide potassium, tetrafluoroborate lithium, tetrafluoroborate sodium, and tetrafluoroborate potassium.
- alkali metal salts of fluorine-containing anions such as lithium hexafluorophosphate, sodium hexafluorophosphate, potassium hexafluorophosphate, and the like.
- alkali metal that forms an anion counter cation examples include lithium, sodium, and potassium.
- the amount is preferably 1 to 1.05 mol.
- the ion exchange reaction is usually performed in a solvent.
- the solvent include ketones such as acetone and methyl ethyl ketone, alcohols such as methanol, ethanol and 2-propanol, acetonitrile, ethyl acetate, tetrahydrofuran and dimethylformamide.
- the amount used is not particularly limited, but is usually 10 parts by weight or less, preferably 1 to 10 parts by weight, particularly preferably 2 to 6 parts by weight, based on 1 part by weight of the onium halide (5).
- the onium halides (5) may be added after mixing the alkali metal salt (6) and the solvent.
- the reaction temperature in the ion exchange reaction is usually 10 ° C. or higher, preferably 10 to 60 ° C., particularly preferably 10 to 30 ° C.
- the solvent and the generated inorganic salt are removed from the reaction solution. If an inorganic salt is precipitated in the obtained reaction solution, the reaction solution is filtered to remove the precipitated inorganic salt, and then unit operations such as concentration, filtration, extraction and the like are appropriately combined to obtain an onium salt (1). Isolate. In addition, when no inorganic salt is precipitated in the obtained reaction solution, the reaction solution is concentrated to precipitate the inorganic salt, and after removing the inorganic salt by filtration, unit operations such as concentration, filtration, extraction, etc. Are appropriately combined to isolate the onium salt (1).
- R 5 represents an alkyl group having 1 to 10 carbon atoms, an aryl group having 6 to 10 carbon atoms, or an aralkyl group having 7 to 10 carbon atoms.
- R 5 may be the same or different.
- Specific examples of R 5 include methyl group, ethyl group, propyl group, butyl group, pentyl group, hexyl group, heptyl group, octyl group, nonyl group, decyl group.
- a methyl group and a phenyl group are preferable, and a methyl group is particularly preferable.
- R 6 represents an alkyl group having 1 to 3 carbon atoms, and specific examples include a methyl group, an ethyl group, a propyl group, and the like. A methyl group and an ethyl group are preferable, and a methyl group is particularly preferable.
- dialkoxysilane (2) include dimethyldimethoxysilane, diethyldimethoxysilane, dipropyldimethoxysilane, methylethyldimethoxysilane, methylpropyldimethoxysilane, methylbutyldimethoxysilane, methylpentyldimethoxysilane, methylhexyldimethoxysilane, Methylheptyldimethoxysilane, methyloctyldimethoxysilane, methylnonyldimethoxysilane, methyldecyldimethoxysilane, methylphenyldimethoxysilane, methylbenzyldimethoxysilane, methylnaphthyldimethoxysilane, dimethyldiethoxysilane, diethyldiethoxysilane, dipropyldiethoxy Silane, methylethyldiethoxys
- dialkoxysilane (2) a commercially available product or a product produced by a known production method may be used.
- the copolymerization of the onium salt (1) and the dialkoxysilane (2) is usually performed by mixing both the onium salt (1) and the dialkoxysilane (2) into a mixture of the onium salt (1) and the dialkoxysilane (2).
- An organic solvent for example, methanol, ethanol, isopropyl alcohol, acetone, etc.
- acid (3) an acid
- base hereinafter referred to as acid (3)
- the acid (3) or base (4) may be added dropwise with an aqueous solution.
- the stoichiometric ratio of onium salt (1) to dialkoxysilane (2) is usually 4 to 49 moles of dialkoxysilane (2), preferably 1 mole of onium salt (1) per mole of onium salt (1).
- the amount of dialkoxysilane (2) is 4 to 16 mol, more preferably 4 to 8 mol of dialkoxysilane (2) with respect to 1 mol of onium salt (1).
- a copolymer obtained by adding a trialkoxysilane such as methyltrimethoxysilane or vinyltrimethoxysilane contains the trialkoxysilane.
- the copolymer of onium salt (1) and dialkoxysilane (2) does not contain the trialkoxysilane.
- monoalkoxysilane and tetraalkoxysilane may be mixed and copolymerized as long as the effect of antistatic property is not impaired.
- monoalkoxysilane include trimethylmethoxysilane, vinyldimethylmethoxysilane, trimethylethoxysilane, vinyldimethylethoxysilane, trimethylpropoxysilane, and vinyldimethylpropoxysilane.
- tetraalkoxysilane include tetra Examples include methoxysilane, tetraethoxysilane, and tetrapropoxysilane.
- the amount of the organic solvent used for dissolving the onium salt (1) and the dialkoxysilane (2) is not particularly limited, but is usually 20 parts by weight or less, preferably 0 with respect to 1 part by weight of the onium salt (1). 5 to 10 parts by weight, particularly preferably 1 to 5 parts by weight.
- Examples of the acid (3) include hydrochloric acid, sulfuric acid, nitric acid, acetic acid, paratoluenesulfonic acid monohydrate, and hydrochloric acid is particularly preferable.
- the amount of acid (3) to be used is generally 0.001 to 1 mol, preferably 0.01 to 0.2 mol, per 1 mol of onium salt (1).
- Examples of the base (4) include sodium hydroxide, potassium hydroxide, lithium hydroxide and the like.
- the amount of the base (4) used is usually 0.001 to 1 mol, preferably 0.01 to 0.2 mol, relative to 1 mol of the onium salt (1).
- the amount of water used for copolymerization is usually 4 to 49 mol per 1 mol of onium salt (1).
- the reaction temperature for the copolymerization of the onium salt (1) and the dialkoxysilane (2) is not particularly limited, but is usually 10 to 80 ° C., preferably 20 to 40 ° C.
- the reaction time is usually 3 hours or longer, preferably 3 to 72 hours.
- the polysiloxane copolymer is obtained by concentrating the reaction mixture obtained by the above reaction, and the obtained polysiloxane copolymer is washed with an immiscible organic solvent (hexane, heptane, benzene, toluene, etc.) as necessary. May be.
- an immiscible organic solvent hexane, heptane, benzene, toluene, etc.
- the amount of the organic solvent used for copolymerization is not particularly limited, but is usually 20 parts by weight or less, preferably 2 to 9 parts by weight, based on 1 part by weight of the onium salt (1).
- the concentration temperature of the reaction mixture is not particularly limited, but is usually 10 to 120 ° C, preferably 60 to 80 ° C.
- the polysiloxane copolymer thus obtained can impart antistatic performance to the resin by kneading into the resin.
- the resin include polycarbonate resin, acrylic resin, and silicone resin. Therefore, the present invention also provides a method for imparting antistatic performance to a resin, including a step of adding (for example, kneading) the polysiloxane copolymer to the resin. Furthermore, the present invention also provides the use of the polysiloxane copolymer as an antistatic agent, particularly for imparting antistatic performance to a resin.
- the polysiloxane copolymer into the resin when kneading the polysiloxane copolymer into the resin, it may be heated and melted and kneaded, or after mixing with an appropriate solvent (for example, dichloromethane, ethyl acetate, toluene, etc.) to prepare a solution,
- the resin may be molded by a method such as applying the solution and removing the solvent.
- the coated surface may be cured by ultraviolet irradiation.
- the amount of the polysiloxane copolymer added to the resin is not particularly limited, but is preferably 0.01 to 1% by weight, particularly preferably 0.05 to 0.5% by weight, based on 1 part by weight of the resin. .
- Production Example 1 1 prepared in a 500 mL glass reactor equipped with a stirrer under a nitrogen atmosphere by the method described in 51.64 g (0.4 mol) of dimethoxydimethylsilane, 40.34 g of isopropyl alcohol and JP 2010-248165 A 30.77 g (0.05 mol) of-(3-trimethoxysilylpropyl) -1,1,1-tributylphosphonium bis (trifluoromethanesulfonyl) imide was charged. To the obtained mixture, 8.47 g of 0.1N hydrochloric acid was added dropwise at room temperature, and the reaction mixture obtained by further stirring at room temperature for 16 hours was concentrated at 80 ° C.
- Production Example 2 38.56 g of a white suspension polysiloxane copolymer B was obtained in the same manner as in Production Example 1, except that 10.83 g of 0.1 N hydrochloric acid was used.
- Example 1 A 50 mL sample bottle was charged with 3.2 g of polycarbonate resin (manufactured by Sumitomo Dow Co., Ltd., Caliber (registered trademark) 200-13 NAT) and 20 mL of dichloromethane, and the polycarbonate resin was dissolved to prepare a dichloromethane solution of the polycarbonate resin.
- 1.6 mg of the polysiloxane copolymer A obtained in Production Example 1 was added as an antistatic agent, and after complete dissolution, the solution was poured into a mold (length 12 cm ⁇ width 20 cm ⁇ depth 2 cm), and at room temperature for 1 hour And dried at 40 ° C. for 1 hour to prepare a polycarbonate resin composition test piece (film thickness 0.1 ⁇ 0.02 mm).
- Table 1 shows the measurement results of the surface resistivity of the obtained test pieces.
- Example 2 A test piece of the polycarbonate resin composition was prepared in the same manner as in Example 1 except that 3.2 mg of the polysiloxane copolymer A was used, and the surface resistivity was measured. The results are shown in Table 1.
- Example 3 A test piece of a polycarbonate resin composition was prepared in the same manner as in Example 1 except that 16 mg of the polysiloxane copolymer A was used, and the surface resistivity was measured. The results are shown in Table 1.
- Example 4 A test piece of a polycarbonate resin composition was prepared in the same manner as in Example 1 except that 32 mg of polysiloxane copolymer A was used, and the surface resistivity was measured. The results are shown in Table 1.
- Example 5 A test piece of a polycarbonate resin composition was prepared in the same manner as in Example 1 except that 32 mg of the polysiloxane copolymer B obtained in Production Example 2 was used, and the surface resistivity was measured. The results are shown in Table 1.
- Comparative Example 1 Except not adding polysiloxane copolymer A or B, the test piece of the polycarbonate resin composition was created like Example 1, and the surface resistivity was measured. The results are shown in Table 1.
- Example 1 except that 1- (3-trimethoxysilylpropyl) -1,1,1-tributylphosphonium bis (trifluoromethanesulfonyl) imide was used in place of the polysiloxane copolymer A or B Then, a test piece of the polycarbonate resin composition was prepared, and the surface resistivity was measured. The results are shown in Table 1.
- Example 6 Dipentaerythritol hexaacrylate (A-DPH: Shin-Nakamura Chemical Co., Ltd.) 0.50 g, Pentaerythritol triacrylate (A-TMN-3LM-N: Shin-Nakamura Chemical Co., Ltd.) 1.50 g, trimethylolpropane 0.50 g of triacrylate (A-TMPT: Shin-Nakamura Chemical Co., Ltd.), 0.54 g of polysiloxane copolymer A obtained in Production Example 1 as an antistatic agent, 1.75 g of isopropyl alcohol, IPA dispersion of colloidal silica (IPA-ST: Silica solid content 30 wt%, manufactured by Nissan Chemical Industries, Ltd.) 3.60 g and 2-hydroxy-2-methylpropiophenone 0.15 g as a photopolymerization initiator were mixed.
- IPA-ST Silica solid content 30 wt%, manufactured by Nissan Chemical Industries, Ltd.
- the obtained mixture was applied to one side of a 100 ⁇ m thick polyethylene terephthalate film using a bar coater so that the dry film thickness was about 5 ⁇ m, and then the ultraviolet ray of a high pressure mercury UV lamp (120 W / cm) was applied to the coating side.
- a test piece hard-coated with an acrylic resin was prepared by irradiating under a condition of an integrated light quantity of about 400 mJ / cm 2 and curing the coating film. Table 2 shows the measurement results of the surface resistivity of the hard coat surface of the obtained test piece.
- Example 7 A test piece hard-coated with an acrylic resin was prepared in the same manner as in Example 6 except that 0.54 g of the polysiloxane copolymer B obtained in Production Example 2 was used. Table 2 shows the measurement results of the surface resistivity of the hard coat surface of the obtained test piece.
- Comparative Example 3 A test piece hard-coated with an acrylic resin was prepared in the same manner as in Example 6 except that the polysiloxane copolymer A or B was not added. Table 2 shows the measurement results of the surface resistivity of the hard coat surface of the obtained test piece.
- Comparative Example 4 Examples were used except that 0.54 g of 1- (3-trimethoxysilylpropyl) -1,1,1-tributylphosphonium bis (trifluoromethanesulfonyl) imide was used in place of the polysiloxane copolymer A or B.
- a test piece hard-coated with an acrylic resin was prepared. Table 2 shows the measurement results of the surface resistivity of the hard coat surface of the obtained test piece.
- Example 8 5.00 g of methyl methacrylate, 0.20 g of azobisisobutyronitrile and 5 mg of the polysiloxane copolymer A obtained in Production Example 1 as an antistatic agent were mixed, and the resulting mixture was made into a plastic container (inner diameter 5 cm ⁇ depth). Into a 1.5 cm cylinder) and cured at 50 ° C. for 10 hours to prepare a test piece of polymethyl methacrylate resin having a thickness of about 2 mm. Table 3 shows the measurement results of the surface resistivity of the obtained test pieces.
- Example 9 Peroxide curing type silicone adhesive KR-101-10 (solid content 60%, manufactured by Shin-Etsu Chemical Co., Ltd.) 4.0 g, curing agent BPO (benzoyl peroxide) 0.08 g, ethyl acetate 6.2 g and antistatic 48 mg of the polysiloxane copolymer A obtained in Example 1 was mixed as an agent to obtain a silicone resin adhesive.
- the silicone resin adhesive is applied to one side of a polyethylene terephthalate film (release paper) using a bar coater so that the dry film thickness is about 8 ⁇ m, and dried by heating at 90 ° C. for 3 minutes and 160 ° C. for 2 minutes. A resin adhesive layer was prepared and the surface resistivity was measured.
- a triacetyl cellulose film (TAC film) was bonded to the surface having the pressure-sensitive adhesive layer and aged for 1 hour at 25 ° C. and 50% RH to prepare a test film.
- the adhesive state of the adhesive to the release paper when the release paper was peeled from the test film was visually evaluated.
- the results are shown in Table 4.
- C Adhesion of most of the adhesive to the release paper is observed.
- Comparative Example 7 A silicone resin pressure-sensitive adhesive layer and a test film are prepared in the same manner as in Example 9 except that the polysiloxane copolymer A or B is not added, and the surface resistivity is measured and the pressure-sensitive adhesive is attached to the release paper. The state was evaluated visually. The results are shown in Table 4.
- Example 1 was repeated except that 1- (3-trimethoxysilylpropyl) -1,1,1-tributylphosphonium bis (trifluoromethanesulfonyl) imide was used in place of polysiloxane copolymer A or B. Then, a silicone resin pressure-sensitive adhesive layer and a test film were prepared, the surface resistivity was measured, and the adhesion state of the pressure-sensitive adhesive to the release paper was visually evaluated. The results are shown in Table 4.
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Abstract
Description
本出願は、2014年4月21日に出願された、日本国特許出願第2014-086978号明細書(その開示全体が参照により本明細書中に援用される)に基づく優先権を主張する。
撹拌装置を備えた500mLのガラス反応器に、窒素雰囲気下、ジメトキシジメチルシラン51.64g(0.4モル)、イソプロピルアルコール40.34g及び特開2010-248165号公報に記載の方法により製造した1-(3-トリメトキシシリルプロピル)-1,1,1-トリブチルホスホニウム=ビス(トリフルオロメタンスルホニル)イミド30.77g(0.05モル)を仕込んだ。得られた混合物に対して、0.1規定塩酸8.47gを室温で滴下した後、さらに室温で16時間撹拌して得た反応混合物をロータリーエバポレーターで80℃下4時間濃縮した。得られた濃縮残渣をn-ヘキサン80gで2回分液洗浄し、さらにロータリーエバポレーターを用いて80℃で5時間濃縮することにより、淡黄色液体のポリシロキサン共重合体A33.14gを得た。その1H-NMR分析結果を以下に示す。
0.1規定塩酸を10.83g用いた以外は、製造例1と同様にして白色懸濁液体のポリシロキサン共重合体B38.56gを得た。
50mLのサンプル瓶にポリカーボネート樹脂(住友ダウ株式会社製、カリバー(登録商標)200-13 NAT)3.2gとジクロロメタン20mLを入れ、ポリカーボネート樹脂を溶解させてポリカーボネート樹脂のジクロロメタン溶液を調製した。その溶液に帯電防止剤として製造例1で得たポリシロキサン共重合体A1.6mgを添加し、完溶させた後に金型(縦12cm×横20cm×深さ2cm)へ流し込み、室温で1時間、40℃で1時間乾燥させ、ポリカーボネート樹脂組成物の試験片(膜厚0.1±0.02mm)を作成した。得られた試験片の表面抵抗率の測定結果を表1に示す。
ポリシロキサン共重合体Aを3.2mg用いた以外は、実施例1と同様にしてポリカーボネート樹脂組成物の試験片を作成し、その表面抵抗率を測定した。その結果を表1に示す。
ポリシロキサン共重合体Aを16mg用いた以外は、実施例1と同様にしてポリカーボネート樹脂組成物の試験片を作成し、その表面抵抗率を測定した。その結果を表1に示す。
ポリシロキサン共重合体Aを32mg用いた以外は、実施例1と同様にしてポリカーボネート樹脂組成物の試験片を作成し、その表面抵抗率を測定した。その結果を表1に示す。
製造例2で得たポリシロキサン共重合体Bを32mg用いた以外は、実施例1と同様にしてポリカーボネート樹脂組成物の試験片を作成し、その表面抵抗率を測定した。その結果を表1に示す。
ポリシロキサン共重合体A又はBを添加しない以外は、実施例1と同様にしてポリカーボネート樹脂組成物の試験片を作成し、その表面抵抗率を測定した。その結果を表1に示す。
ポリシロキサン共重合体A又はBの代わりに、1-(3-トリメトキシシリルプロピル)-1,1,1-トリブチルホスホニウム=ビス(トリフルオロメタンスルホニル)イミドを用いた以外は、実施例1と同様にしてポリカーボネート樹脂組成物の試験片を作成し、その表面抵抗率を測定した。その結果を表1に示す。
ジペンタエリスリトールヘキサアクリレート(A-DPH:新中村化学工業株式会社製)0.50g、ペンタエリスリトールトリアクリレート(A-TMN-3LM-N:新中村化学工業株式会社製)1.50g、トリメチロールプロパントリアクリレート(A-TMPT:新中村化学工業株式会社製)0.50g、帯電防止剤として製造例1で得たポリシロキサン共重合体A0.54g、イソプロピルアルコール1.75g、コロイダルシリカのIPA分散液(IPA-ST:シリカ固形分30wt%、日産化学工業株式会社製)3.60g及び光重合開始剤として2-ヒドロキシー2-メチルプロピオフェノン0.15gを混合した。得られた混合物を厚さ100μmのポリエチレンテレフタラートフィルムの片面にバーコーターを用いて乾燥膜厚が約5μmとなるよう塗布した後、塗膜側に高圧水銀UVランプ(120W/cm)の紫外線を積算光量約400mJ/cm2の条件で照射して、塗膜を硬化させることによって、アクリル樹脂でハードコートされた試験片を作成した。得られた試験片のハードコート面の表面抵抗率の測定結果を表2に示す。
製造例2で得たポリシロキサン共重合体Bを0.54g用いた以外は、実施例6と同様にしてアクリル樹脂でハードコートされた試験片を作成した。得られた試験片のハードコート面の表面抵抗率の測定結果を表2に示す。
ポリシロキサン共重合体A又はBを添加しない以外は、実施例6と同様にしてアクリル樹脂でハードコートされた試験片を作成した。得られた試験片のハードコート面の表面抵抗率の測定結果を表2に示す。
ポリシロキサン共重合体A又はBの代わりに、1-(3-トリメトキシシリルプロピル)-1,1,1-トリブチルホスホニウム=ビス(トリフルオロメタンスルホニル)イミド0.54gを用いた以外は、実施例6と同様にしてアクリル樹脂でハードコートされた試験片を作成した。得られた試験片のハードコート面の表面抵抗率の測定結果を表2に示す。
メタクリル酸メチル5.00g、アゾビスイソブチロニトリル0.20g及び帯電防止剤として製造例1で得たポリシロキサン共重合体A5mgを混合し、得られた混合物をプラスティック容器(内径5cm×深さ1.5cmの円筒形)に流し込み、50℃で10時間硬化させて厚さ約2mmのポリメチルメタクリレート樹脂の試験片を作成した。得られた試験片の表面抵抗率の測定結果を表3に示す。
ポリシロキサン共重合体A又はBを添加しない以外は、実施例8と同様にしてポリメチルメタクリレート樹脂の試験片を作成し、その表面抵抗率を測定した。その結果を表3に示す。
ポリシロキサン共重合体A又はBの代わりに、1-(3-トリメトキシシリルプロピル)-1,1,1-トリブチルホスホニウム=ビス(トリフルオロメタンスルホニル)イミド5mgを用いた以外は、実施例8と同様にしてポリメチルメタクリレート樹脂の試験片を作成し、その表面抵抗率を測定した。その結果を表3に示す。
過酸化物硬化型シリコーン粘着剤KR-101-10(固形分60%、信越化学工業株式会社製)4.0g、硬化剤BPO(過酸化ベンゾイル)0.08g、酢酸エチル6.2g及び帯電防止剤として実施例1で得たポリシロキサン共重合体A48mgを混合してシリコーン樹脂粘着剤を得た。前記シリコーン樹脂粘着剤をポリエチレンテレフタラートフィルム(離型紙)の片面にバーコーターを用いて乾燥膜厚が約8μmとなるよう塗布し、90℃で3分間、160℃で2分間加熱乾燥させてシリコーン樹脂粘着剤層を作成し、その表面抵抗率を測定した。その結果を表4に示す。
前記粘着剤層を有する面にトリアセチルセルロースフィルム(TACフィルム)を貼り合わせ、25℃、50%RHで1時間エージングして試験用フィルムを作成した。試験用フィルムから離型紙を剥離した際の離型紙への粘着剤の付着状態を目視で評価した。その結果を表4に示す。
A:離型紙への粘着剤の付着が認められない。
B:離型紙への部分的な粘着剤の付着が認められる。
C:離型紙への大部分の粘着剤の付着が認められる。
ポリシロキサン共重合体A又はBを添加しない以外は実施例9と同様にしてシリコーン樹脂粘着剤層及び試験用フィルムを作成し、その表面抵抗率を測定するとともに、離型紙への粘着剤の付着状態を目視で評価した。その結果を表4に示す。
ポリシロキサン共重合体A又はBの代わりに、1-(3-トリメトキシシリルプロピル)-1,1,1-トリブチルホスホニウム=ビス(トリフルオロメタンスルホニル)イミドを用いた以外は実施例9と同様にしてシリコーン樹脂粘着剤層及び試験用フィルムを作成し、その表面抵抗率を測定するとともに、離型紙への粘着剤の付着状態を目視で評価した。その結果を表4に示す。
Claims (9)
- 式(1)で示されるオニウム塩と式(2)で示されるジアルコキシシランを共重合して得られるポリシロキサン共重合体。
式(1):
式(2):
- 前記式(1)において、Q+がリンカチオンである請求項1に記載のポリシロキサン共重合体。
- 前記式(1)において、X-がハロゲンアニオン又は含フッ素アニオンである請求項1又は2に記載のポリシロキサン共重合体。
- 前記含フッ素アニオンがトリフルオロメタンスルホン酸アニオン、ビス(トリフルオロメタンスルホニル)イミドアニオン、テトラフルオロボレートアニオン又はヘキサフルオロホスフェートアニオンである請求項3に記載のポリシロキサン共重合体。
- 前記式(1)で示されるオニウム塩1モルと前記式(2)で示されるジアルコキシシラン4~49モルを共重合して得られる請求項1~4のいずれかに記載のポリシロキサン共重合体。
- 請求項1~5のいずれかに記載のポリシロキサン共重合体を含有する帯電防止剤。
- 請求項6に記載の帯電防止剤を含有する樹脂組成物。
- 前記樹脂組成物がポリカーボネート樹脂組成物、アクリル樹脂組成物又はシリコーン樹脂組成物である請求項7に記載の樹脂組成物。
- 塩酸存在下、前記式(1)で示されるオニウム塩と前記式(2)で示されるジアルコキシシランとを共重合させることを特徴とする請求項1~4のいずれかに記載のポリシロキサン共重合体の製造方法。
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KR20210046020A (ko) | 2018-08-17 | 2021-04-27 | 신에쓰 가가꾸 고교 가부시끼가이샤 | 오가노폴리실록산 화합물, 그 제조 방법, 그것을 함유하는 대전방지제 및 경화성 조성물 |
US12054588B2 (en) | 2018-08-17 | 2024-08-06 | Shin-Etsu Chemical Co., Ltd. | Organopolysiloxane compound, method for producing same, and antistatic agent and curable composition, each of which contains same |
JP2020094139A (ja) * | 2018-12-13 | 2020-06-18 | 信越化学工業株式会社 | 帯電防止性シリコーンゴム組成物及び帯電防止キャリアプレート |
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TW201540751A (zh) | 2015-11-01 |
CN105916913A (zh) | 2016-08-31 |
KR20160148511A (ko) | 2016-12-26 |
TWI684617B (zh) | 2020-02-11 |
JP6177430B2 (ja) | 2017-08-09 |
CN105916913B (zh) | 2019-10-25 |
JPWO2015163022A1 (ja) | 2017-04-13 |
KR102276501B1 (ko) | 2021-07-12 |
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