WO1997042243A1 - Copolymere sequence fonctionnel et procede de preparation correspondant - Google Patents
Copolymere sequence fonctionnel et procede de preparation correspondant Download PDFInfo
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- WO1997042243A1 WO1997042243A1 PCT/JP1997/001556 JP9701556W WO9742243A1 WO 1997042243 A1 WO1997042243 A1 WO 1997042243A1 JP 9701556 W JP9701556 W JP 9701556W WO 9742243 A1 WO9742243 A1 WO 9742243A1
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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
- C08G77/42—Block-or graft-polymers containing polysiloxane sequences
- C08G77/445—Block-or graft-polymers containing polysiloxane sequences containing polyester sequences
- C08G77/448—Block-or graft-polymers containing polysiloxane sequences containing polyester sequences containing polycarbonate sequences
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F290/00—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups
- C08F290/08—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups on to polymers modified by introduction of unsaturated side groups
- C08F290/14—Polymers provided for in subclass C08G
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F293/00—Macromolecular compounds obtained by polymerisation on to a macromolecule having groups capable of inducing the formation of new polymer chains bound exclusively at one or both ends of the starting macromolecule
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F293/00—Macromolecular compounds obtained by polymerisation on to a macromolecule having groups capable of inducing the formation of new polymer chains bound exclusively at one or both ends of the starting macromolecule
- C08F293/005—Macromolecular compounds obtained by polymerisation on to a macromolecule having groups capable of inducing the formation of new polymer chains bound exclusively at one or both ends of the starting macromolecule using free radical "living" or "controlled" polymerisation, e.g. using a complexing agent
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F295/00—Macromolecular compounds obtained by polymerisation using successively different catalyst types without deactivating the intermediate polymer
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F8/00—Chemical modification by after-treatment
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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
- C08G77/42—Block-or graft-polymers containing polysiloxane sequences
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L25/00—Compositions of, homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Compositions of derivatives of such polymers
- C08L25/02—Homopolymers or copolymers of hydrocarbons
- C08L25/04—Homopolymers or copolymers of styrene
- C08L25/06—Polystyrene
Definitions
- the present invention relates to a compatibilizer for a blend polymer of an integrated polymer and a vinyl polymer and a method for producing the same.
- the present invention provides a functional block for providing a synthetic resin with functions such as ultraviolet absorbing ability and flame retardancy! : Regarding coalescence and its manufacturing method.
- a functional block for providing a synthetic resin with functions such as ultraviolet absorbing ability and flame retardancy! : Regarding coalescence and its manufacturing method.
- a synthetic resin is required to have various functions depending on the intended use and its use conditions. Therefore, a functional monomer or polymer is added to the synthetic resin, and a new resin is added to the conventional resin. Functions are imparted or modified. For example, to prevent UV damage to synthetic resins, UV absorbers such as benzofuunone derivatives or benzotriabule derivatives have conventionally been added to prevent UV deterioration of the synthetic resin itself and to improve weather resistance. Is given.
- antimony oxide, phosphorus compounds or halogen compounds have conventionally been used.
- the polymer-blending method incorporates the superior properties of each polymer by mixing two or more types of polymers into the molding of the synthetic resin to improve the properties of that resin.
- the polymer-blending method incorporates the superior properties of each polymer by mixing two or more types of polymers into the molding of the synthetic resin to improve the properties of that resin.
- it is generally molded after mixing and melting, so it is important that these polymers have compatibility. If the compatibility between the polymers is poor, the molded resin In some cases, the properties cannot be sufficiently exhibited, and a compatibilizing agent such as a compatible modifier is added and used.
- a technique of copolymerizing a condensation polymer (eg, an ester polymer) with a vinyl polymer is known (Japanese Patent Application Laid-Open No. 59-27908).
- the copolymer itself is used as a thermoplastic resin to be molded by heating, and its properties are determined by the composition of the block copolymer and the properties of each polymer. It is difficult and the production cost of the copolymer resin is high.
- the function of the resin may be provided only on the entire resin, or may be provided only on the surface layer of the resin molded product.
- the blend polymer is dissolved or the microstructure is refined. * Compatibility for dispersion is required, and a compatibilizer is used for melt blending between incompatible polymers.
- Japanese Patent Publication No. 5-4] 668 discloses a block copolymer having a hydrophilic vinyl-based segment and a hydrophobic vinyl-based segment introduced using a polyazo compound as a polymerization initiator.
- an antistatic agent that is made of a polymer and imparts surface conductivity with a hydrophilic segment to prevent charging of the resin.
- Japanese Patent Publication No. Hei 5-4-1668 describes that a vinyl monomer is used as a azo group as a vinyl polymerization initiator in order to form a hydrophobic segment and a hydrophilic segment in a polyazo compound.
- a polymer type ultraviolet absorber for example, a random copolymer of styrene and a vinyl-based ultraviolet absorbing compound is known, which is effective for preventing volatilization during heating and melting.
- the type of UV absorber has a problem of compatibility with the resin to be added.
- the above-mentioned UV-absorbing polymer with styrene has poor compatibility with polycarbonate, and uniform dispersion cannot be obtained.
- phosphorus compounds are used from the viewpoint of stability and transparency for transparent synthetic resins, but even in this case, they can be dispersed uniformly in the resin. Compatibility was required.
- functions that should be uniformly exhibited in the resin include flame retardancy, impact resistance, and radiation resistance.
- the functional component be compatible with the synthetic resin after melting and be uniformly dispersed in the resin.
- the functional properties of the surface properties of the synthetic resin in addition to antistatic properties and conductivity, it has ultraviolet absorption, antifouling properties, and antibacterial properties.
- uniform dispersion is not always required in the resin, but rather such a property is required that such a function-imparting component is aggregated on the surface during the cooling process after melting during molding. Therefore, it is necessary to adjust the distribution of the functional components in the resin by these functions.
- polycarbonate resin is used for the base material of laser compact discs because it excels in translucency, strength, impact resistance, heat resistance, etc.
- polystyrene is used for the case that stores the discs.
- compact discs are often discarded together with the case at the same time, and when such plastic waste is collected and reused, polycarbonate and polystyrene are melted at the same time and metal parts are removed. After sorting such products, they can be molded by casting or extrusion, and used as polycarbonate-polystyrene blended products.
- polycarbonate and polystyrene are poorly compatible with each other, and the resulting blended product suffers from a reduction in mechanical strength ⁇ matching strength, and cannot be treated in the same row as a molded product made of polycarbonate alone. There is a need to improve polystyrene blend products.
- An object of the present invention is to provide a compatibilizer capable of enhancing the compatibility of polymers with a polymer blend having an arbitrary composition by utilizing the properties of a polyazo compound, and a method for producing the same.
- Another object of the present invention is to provide a method for producing a compatibilizer, which can be prepared from a component of a blend polymer to which the compatibilizer is to be added.
- the present invention relates to a condensation type polymer, particularly an aromatic ester type polymer, vinyl To provide a polymer for imparting the above-mentioned function to a synthetic resin containing a system polymer and a method for producing the same, thereby providing such a functional polymer and a modifier using the same. It is an object. Disclosure of the invention
- the present invention provides a compatibilizer for a resin obtained by blending a condensation polymer and a vinyl polymer. That is, by making the compatibilizer a polymer compatible with the condensation polymer and a block copolymer of a polymer compatible with the vinyl polymer, on the other hand, the condensate in a mixed state during blending is obtained. It enhances the mutual compatibility between the combined polymer and the vinyl polymer.
- the compatibilizing agent of the present invention is obtained by incorporating a segment of a condensation polymer into a polyazo compound in advance to form a macroazo polymerization initiator, polymerizing a vinyl monomer at the azo group position, and condensing a condensation-vinyl copolymer block.
- This block copolymer 1 union has a structure having a segment of a condensation polymer and a segment of a vinyl polymer on a straight chain. Therefore, when added to the melt during polymer blending, a block copolymer is compared with a melt mixture of a condensed polymer and a vinyl polymer, which are hardly soluble in each other. And the other vinyl segment dissolves in the vinyl polymer.Thus, the mutual dispersibility of the condensed polymer phase and the vinyl polymer phase, that is, the compatibility, is improved through the block copolymer. The microstructure of the obtained resin is refined. * It works for densification.
- the present invention provides a block copolymer having a segment of a condensation polymer or a vinyl polymer and a polymer segment having a vinyl function. : Combined, this block copolymer is used as the main or part of the synthetic resin, and the function of the function imparting segment is expressed in the synthetic resin.
- condensation type or vinyl type segment of the block copolymer can be selected so as to exhibit compatibility with the polymer on the side of the resin to be added, and this allows the block copolymer to be uniformly dispersed in the resin. Can also be used as an additive to the resin.
- Such a copolymer is obtained by block copolymerizing a radically polymerizable monomer for imparting a function to a polyazo compound having a condensed or vinyl polymer segment and an azo group in the repeating unit. It is formed by this.
- Another method is to use a polymerized peroxide having a condensation or vinyl polymer segment and a peroxide group as a repeating unit, and use the peroxide group as a polymerization initiator to form a radical for imparting a function. It is formed by block copolymerization of a polymerizable monomer.
- the monomer for imparting functions becomes a functional imparting segment by block copolymerization, and the copolymer exhibits a function corresponding to the intrinsic properties of the monomer.
- Such functions include flame retardancy, heat resistance, radiation resistance, ultraviolet absorption, antistatic properties, surface conductivity or antistatic properties, antioxidant properties, antifouling properties, and antibacterial properties for resins.
- the block of the present invention! For the coalescence, a segment obtained by polymerizing a monomer having low cohesive energy to the third block segment is used together with a segment of a condensed system or a vinyl polymer and a segment of a function-imparting polymer.
- the low-aggregation energy segment is a condensation-type or vinyl-type polymer segment or a polymer having a lower aggregation energy than the main constituent polymer of the synthetic resin.
- the low cohesive energy segment migrates and coagulates on its surface, whereby the functionalized segment of the main chain of the block copolymer becomes a segment of the low cohesive energy segment.
- the surface layer concentrates, and its functions are concentrated especially on the resin surface layer.
- the functions required for such a surface layer include UV absorption, antistatic properties, surface conductivity, and antioxidant properties. The properties, antifouling properties and antibacterial properties are important.
- FIG. 1 shows a process of forming a polycarbonate gel by decomposition of polycarbonate PC in a first step of the production method of the present invention.
- FIG. 2 shows a process of forming a polyazo compound in the second step of the production method of the present invention and a process of forming a polycarbonate-polystyrene copolymer in the third step.
- Fig. 3 shows a scanning electron micrograph of the particle structure of the fracture surface after the impact test of a polycarbonate-polystyrene friend resin impact test specimen.
- A shows a specimen without a compatibilizer.
- Comparative Example is shown, and
- B is a test piece to which the compatibilizing agent for the block copolymer of the present invention is added (Example).
- FIG. 4 is a scanning electron micrograph similar to FIG. 3 of an impact test piece formed from a polycarbonate-polystyrene friend resin, except that a commercial modifier is added.
- FIG. 5 is a view showing the shochu property of a polycarbonate plate containing the copolymerizable ultraviolet inhibitor of the present invention.
- a borazo compound for forming a block copolymer is a azo compound having a segment of the condensation polymer and a azo group in a repeating unit.
- a borazo compound can be used, and is obtained by polycondensing azobiscarboxylic acid chloride or azobiscarboxylic acid with an oligomer having hydroxyl groups at both ends of the above-mentioned condensed polymer.
- the azobiscarboxylic acid chloride is preferably azobiscyanocarbonic acid chloride represented by the formula: wherein n is an integer of from 1 to 3.
- 2,2′-azobis (2-cyanopropionic acid chloride) or 4,4′-azobis (4-monocyanopentanoic acid chloride) is preferably used.
- Condensed oligomers having hydroxyl groups at both terminals include diols of aromatic polycarbonate corresponding to the aromatic polycarbonate in the above-mentioned condensation polymers, and polyethylene terephthalate ⁇ polybutylene terephthalate corresponding to the aromatic polyester. And diols such as polyarylate, polycaprolactam, and polylactic acid.
- the block copolymer of the present invention can be obtained by radically polymerizing a vinyl monomer at the azo group position of the above-mentioned polyazo compound.
- This vinyl monomer includes vinyl chloride, vinylidene chloride, vinyl acetate, acrylic acid, methyl acrylate, ethyl acrylate, butyl acrylate, n-hexyl acrylate, cyclohexyl acrylate, and 2-ethyl.
- Alkyl acrylate alkyl methacrylates such as hexyl acrylate, methyl methacrylate, methyl methacrylate, ethyl methacrylate, butyl methacrylate, n-hexyl methacrylate, cyclohexyl methacrylate, and 2-ethylhexyl methacrylate; Styrene, ⁇ -methylstyrene, dimethylstyrene, chlorostyrene, bromostyrene, aromatic vinyl such as vinyltoluene, acrylonitrile, methylacrylonitrile, acrylamide, methylacrylamide, etc. can be used. Olefins such as ethylene, propylene, and butene, and gens such as butadiene and isoprene are also used.
- the above-mentioned vinyl monomers may be used as a mixture of two or more kinds.
- a carboxylic acid such as acrylic acid or methacrylic acid may be contained.
- the polymer it is also possible to use a vinyl oligomer having a vinyl group at the terminal.
- a vinyl oligomer such as acrylate, acrylonitrile, butadiene, and styrene, which is terminated by forming a vinyl group at a terminal.
- Copolymers obtained by block polymerization of these polyazo compounds and the above-mentioned vinyl compounds have a structure having a segment of a condensation polymer, a segment of a bullet polymer, and a (cyano) carboxylic acid residue between them on a chain. It becomes.
- the condensed polymer and the vinyl polymer, which are the segments of the union, can be matched with the constituent polymer components of the blend resin.
- the polymer of each segment a polymer compatible with each polymer constituting the resin can be appropriately selected.
- the polymer of the blend resin and the polymer of the segment of the compatibilizer copolymer are not necessarily the same. T, not limited to polymers.
- the method for producing such a block copolymer is as follows.
- the above-mentioned condensed polymer is used as a raw material, and the chain is separated by a dihydric alcohol as a polymer-forming component in the presence of a catalyst.
- a condensation oligomer having hydroxyl groups at both ends is formed.
- a polyazo compound is formed by polycondensing the rain-end hydroxyl group condensation oligomer with an azo group-containing carboxylic acid chloride.
- the polyab compound is subjected to block polymerization of a vinyl monomer using the ab group as an initiator to form a block copolymer.
- This block is used as a compatibilizer.
- the third step has an advantage that a condensed oligomer having both terminal hydroxyl groups can be formed from a commercially available condensed polymer as a raw material.
- Fig. 2 shows an example of using polycarbonate (PC) as a raw material.
- PC polycarbonate
- Bisphenol A which is a raw material monomer for polycarbonate (PC) and polycarbonate, and zinc nitrate as a catalyst in benzene with trichloride Is added and dissolved by heating to break the polycarbonate main chain, and then cooled and poured into a large amount of methanol to precipitate. In this process, carbonate oligomers having fluorinated hydroxyl groups at both ends are formed.
- the second step is an example of polycarbonate (PC).
- PC polycarbonate
- this hydroxyl group at both ends is combined with a carbonate oligomer and azobiscyanone nitrate chloride (ACPC).
- ACPC azobiscyanone nitrate chloride
- a polyazo compound having azo groups and polyethylene terephthalate segments alternately formed is formed.
- a polyazo compound containing a polycarbonate (PC) segment and the above-mentioned vinyl-based monomer, in this example, a styrene monomer (ST) are used. After mixing, the azo group itself is reacted as a polymerization initiator to form a copolymer.
- a polymerization reaction of a borazo compound containing a poly (ethylene terephthalate) segment and the above-mentioned vinyl monomer causes a polymerization of the poly (ethylene terephthalate) segment and the vinyl polymer segment. Is formed.
- the block copolymer thus formed is added as a compatibilizer when blending the polymers corresponding to the two types of segments, and the amount added is a small amount, for example, ⁇ to 10 in the blended polymer. weight! 3 ⁇ 4approx.
- the block copolymer of the present invention can be most preferably applied to a blend resin composed of polycarbonate and polystyrene.
- the block copolymer of the present invention can be used for a blended resin which is effective as a compatibilizer for an additional time.
- the polyazo compound is added to the vinyl monomer together with an amine, an alcohol, an epoxy compound, a carboxylic acid, a carboxylic acid ester, a carboxylic acid salt, a cyclic acid anhydride, oxabulin, a carpoimide,
- a radically reactive monomer having a reactive functional group such as isocyanate
- the amines include N.N-dimethylaminoethyl methacrylate, N.N-dimethylaminopropyl methacrylamide, and the like.
- Epoxy compounds include glycidyl acrylate and the like, and esters include methyl acrylate and vinyl dioxylate.
- Carboxylic acids include acrylic acid and methacrylic acid.
- Cyclic anhydrides include anhydrous maleic acid.
- Alcohols include 2-hydroxyethyl methacrylate.
- the vinyl segment of the copolymer is a random mixture of the vinyl monomer and the above radical polymerizable monomer.
- Reactive compound is introduced from radical polymerizable monomer into copolymer. It is. When added as a compatibilizer in the melt-blended resin, the reactive functional group reacts with the reactive functional group such as amine, carboxylic acid ester, hydroxyl group, etc. of the resin blend polymer, or phenyl group. Therefore, the compatibility between the compatibilizer polymer and the resin blend polymer is further improved.
- the compatibilizer contains maleic anhydride
- the maleic anhydride binds to the phenyl groups in both polymers, To improve solubility.
- the present invention relates to the above polyazo! :
- a polymeric peroxide compound can be used as the vinyl polymerization initiator.
- the linear polymer has a segment of a condensation polymer and a dioxy group on the straight chain, and the dioxy group serves as a polymerization starting point to radically polymerize the vinyl monomer.
- the polymeric peroxide compound can be applied to the vinyl polymerization initiator in the same manner as the polyazo compound, so that it can be used as a compatibilizer for a block copolymer having a condensation-based polymer segment and a vinyl-based polymer segment. It can be formed.
- condensation polymers having hydroxyl groups at both terminals include aromatic polycarbonate diols and aromatic polyester diols such as polyethylene terephthalate, polybutylene terephthalate or polydimethylenecyclohexane terephthalate.
- aromatic polycarbonate diols aromatic polyester diols
- diols of latex and the like diols of polyarylate and polylactic acid
- diols obtained by ring-opening polymerization of force prolactone can also be used. Also with each of these! : It is also preferably used for a diol made of coalesced diol.
- condensation polymer is selected as a diol from condensation polymers which are compatible with the polymer of the resin to be added. It is.
- the diol of the condensation polymer has a hydroxyl group at both ends by dividing the main chain in the presence of a catalyst with a dihydric alcohol using a condensation polymer as a raw material. Obtained as an oligomer.
- a dihydric alcohol a dihydric alcohol that forms a polymer is usually used.
- the condensation polymer is polycarbonate
- polycarbonate and bisphenol A as a dihydric alcohol are heated and dissolved in trichlorobenzene using zinc acetate as a catalyst, and when cooled, the phenolic property at the rain end A carbonate oligomer having a hydroxyl group is formed.
- the condensation polymer is polyethylene terephthalate, polybutyrene terephthalate or polydimethylenecyclohexane terephthalate
- the dihydric alcohol may be ethylene glycol,], 4-butanediol or 1,4- Cyclohexanedimethanol is used.
- this! Used when each of the coalesced components is obtained as an oligomer, and the above-mentioned dihydric alcohol is suitably and suitably used.
- Polyolefin diols are used as vinyl polymers having hydroxyl groups at both ends, for example, diols of polyethylene, polypropylene, and polybutylene.
- a polyazo compound having a polyolefin segment has the advantage of increasing the compatibility of the formed block copolymer with the polyolefin resin, and is effective in imparting functionality to the polyolefin resin.
- polyolefins having hydroxyl groups at both ends as shown in Formula 2, a polyolefin polyol in which butadiene is polymerized and both ends are substituted with reactive 0 H groups by hydrogenation can be used. It is available as “Polytel 11” and “Polytail HA” from Chemical Co., Ltd. The use of “Polytail H” or “Volitare HA” is suitable for using the block copolymer as an additive for imparting erosion to polyethylene resin and polypropylene resin.
- Polyazo compound is a azobis carboxylic acid chloride that has a hydroxyl group at the rain end or an oligomer of olefin. And a condensation reaction in a solution, It is polymerized and precipitated by pouring into a large excess of methanol and separated. In the case of a carbonate oligomer having hydroxyl groups at both ends, a polyazo compound in which a polycarbonate segment and an azo group are alternately inserted is obtained.
- the polyazo compound thus formed contains a condensed polymer or vinyl polymer segment in a repeating unit and an azo group, which is combined with another functionalized vinyl monomer.
- Macro azo during polymerization! It is used as an initiator.
- the functionalization-imparting vinyl-based monomer includes a UV-absorbing compound having a vinyl group, for example, a (meth) acrylate ester of a benzotriazole derivative or a benzozonone derivative. : An ultraviolet absorbing function can be given to the union.
- 2-hydroxy-4- (2-methacryloyloxyethoxydi) benzophenone as shown in Formula 3 can be used.
- the flame retardancy can be imparted to the copolymer by utilizing an organic phosphate ester monomer having a vinyl group as the vinyl monomer imparting erosion.
- organic phosphate ester monomers include getyl (bulphenyl) phosphate, 4-vinylbenzenephosphinic acid getyl ester, and the like.
- diphenyl 2-methacryloyloxyethyl phosphate (available as “MR-260” manufactured by Daihachi Chemical Industry Co., Ltd.) is preferably used. .
- a monomer or oligomer having low cohesive energy which includes a solubility parameter ⁇ 5 ical / cm 3 ] ⁇ 2 or a critical surface tension ⁇ ⁇ . Evaluated in dyn / cm, those whose cohesive energy is generally smaller than those of the above-mentioned vinyl-based polymer or condensation-based polymer forming the copolymer segment are used, and in particular, an organic siloxane having a vinyl group at a terminal or Fluoroalkyl monomers are available.
- the monomer of organosiloxane or fluoroalkyl becomes a low cohesive energy segment by copolymerization, and this segment moves to the surface layer of the copolymer and becomes hydrophobic and surface slippery. To prevent dirt from adhering to the surface.
- the block copolymer thus formed is added to another resin, it imparts antifouling properties to the resin surface.
- the heat resistance can be improved by using an N-substituted monomaleimide compound as the vinyl monomer.
- N-substituted maleimide compound N-methylmaleimide, N-butylmaleimide, N-cyclohexylmaleimide, N-phenylmaleimide and the like can be used.
- Block sex! Can be given to the united.
- a conventional polymerization method such as a bulk polymerization method, a solution polymerization method, a suspension polymerization method, and an emulsion polymerization method is used. The reaction is carried out at a reaction temperature of 60 to 140 ° C. until the azo groups in the polyazo compound are consumed.
- the block copolymer is further combined with a vinyl-based monomer for imparting compatibilization to improve the compatibility of the block copolymer itself with the resin to be added. It can also be blended.
- Such vinyl monomers include vinyl chloride, vinylidene chloride, vinyl acetate, acrylic acid, methyl acrylate, ethyl acrylate, and propyl acrylate. Rate, butyl acrylate, 2-hydroxyethyl acrylate, 2-hydroxypropyl acrylate, 2-ethylhexyl acrylate, glycidyl acrylate, benzyl acrylate, phenoxyshetyl acrylate , Tetrahydrofurfuryl acrylate, methyl methacrylate, methyl methacrylate, ethyl methacrylate, propyl methacrylate, butyl methacrylate, 2-hydroxyhexyl methacrylate, 2-hydroxydipropyl methacrylate , 2-ethylhexylmethacrylate, glycidylmethacrylate, benzylmethacrylate, phenoxshetylmethacrylate, tetrahydrofurfuryl me
- the above-mentioned functional vinyl monomer and a vinyl monomer for compatibilization are sequentially block-copolymerized with the above-mentioned polyazo compound.
- a copolymer is produced by polymerizing the above-mentioned polyazo compound with either the above-mentioned functional vinyl monomer or a vinyl monomer for compatibilization using an azo group as an initiator. The polymerization is terminated while leaving an ab group in the polymer. Next, the other vinyl monomer is polymerized on the produced copolymer for a long time until the azo group is consumed.
- the block copolymer further has a vinyl-based monomer for imparting functionality and a vinyl-based low cohesive energy to improve the surface transferability of the block copolymer to the resin to be added. It is also possible to incorporate a polymer having a water-soluble property.
- a polymer having a low cohesive energy includes polyorganosiloxane having a vinyl group at the terminal or polyfluoroalkyl, and the compounds which can be used for the above-mentioned antifouling vinyl monomer can be used as they are.
- the general formula of the polyorganosiloxane is shown in Formula 5, but specifically, Oligomers obtained by substituting the terminal of methylsiloxane, polysiloxane or polydiphenylsiloxane with a vinyl group can be used.
- R ⁇ to R * represent hydrogen, a lower alkyl group having 1 to 6 carbon atoms, a halogenated alkyl group or an aryl group.
- ⁇ R 4 is may be the same or may be different summer.
- 1 represents an integer of 1 to 10;
- m represents any number of 0, 1, and 2;
- n represents 0 or an integer of 1 to 100;
- poly (fluoro) alkyl (meth) acrylate can be used as the polyfluoroalkyl monomer.
- examples thereof are 2,2,2-trifluoromethyl acrylate, 2,2,2-trifluoroethyl and the like.
- Methacrylate, 1 H, 1 H. 2 H, 2 H—heptadecafluorodecyl acrylate can be used.
- the polyorganosiloxane or polyfluoroalkyl monomer becomes a segment with low cohesive energy by copolymerization, and since this segment easily migrates to the resin surface layer, a vinyl-based segment for imparting functionality is also used. Transfer to the resin surface layer, concentrate it and concentrate its function on the surface layer.
- Such a vinyl-based polymer having a low cohesive energy has a low cohesive energy and a lower density than other vinyl-based resins. It has low solubility, is hydrophobic, and easily migrates to the surface, whereby it is concentrated in the surface layer of the resin.
- a segment having low cohesive energy is preferably used in the case of forming an ultraviolet-absorbing copolymer, thereby improving the ultraviolet-absorbing property of the surface layer, and particularly, the surface layer by the ultraviolet rays.
- Deterioration can be effectively improved. That is, when the UV absorbing component is uniformly dispersed in the resin, the surface layer is extremely susceptible to UV deterioration. In the present invention, this is achieved by concentrating the UV absorbing component in the surface layer. Can be prevented. Further, as described above, since the surface becomes slippery and non-adhesive, it can also contribute to the antifouling property of the surface of the copolymer.
- the functional vinyl monomer and the low-cohesion energy vinyl monomer are sequentially added to the polyazo compound.
- Block copolymerize In this polymerization method, either one of the functional vinyl monomer or the vinyl monomer having low aggregation energy is polymerized with the polyazo compound using an azo group as an initiator, and then the azo compound is added. It will be supervised under the condition that the base is left. Next, the other vinyl monomer is added to the resulting copolymer for a long time until the azo group is consumed. : Make them match. By these two steps, a ternary block copolymer consisting of a condensation segment, a functional vinyl segment, and a low cohesive energy segment can be formed.
- Another method of introducing the low-cohesion energy vinyl monomer into the block copolymer is to incorporate a low-cohesion energy vinyl segment into the polyazo compound in place of the condensation segment. It is also possible to use the azo group as a polymerization initiator with this polyazo compound and polymerize the above-mentioned vinyl monomer for imparting functionality to form a block copolymer. In this case, before and after the polymerization of the vinyl monomer imparting functionality, a vinyl monomer is polymerized to introduce a compatible segment.
- a polyazo compound having a segment of a low cohesive energy polymer and an azo group in a repeating unit, the azo group as a radical polymerization initiator, and a compatible vinyl-based monomer and a radical-polymerizable function-imparting monomer. are sequentially copolymerized in a block.
- Such a polyazo compound is obtained by polycondensation of the above azobissianocarboxylic acid chloride with a polyorganosiloxane or polyfluoroalkyl diol or diamine.
- Formulas 6 and 7 show examples of introducing a polyorganosiloxane segment as such polyazo compounds, and Formula 8 shows an example of introducing a borofluoralkyl segment.
- a volimic peroxide can be used in place of the above-mentioned polyazo compound.
- a general formula of usable volimic peroxide is shown in Formula 9.
- the volumetric peroxide has the above-mentioned condensed or vinyl polymer segment and a peroxide group, and the above-mentioned functionalization-imparting monomer is used as a polymerization initiator using the peroxide group as a polymerization initiator. Is done.
- the copolymer obtained by copolymerizing the functionalized vinyl monomer is formed in the same manner as the block copolymer using the above-mentioned polyazo compound.
- an aromatic polycarbonate an aromatic polyester, a condensed bolymer segment such as polyarylate, or a butyl series polymer segment such as polyolefin
- Ra represents an ethylene group or an acetylene group
- n represents 3 to 50 Is an integer.
- the functional block copolymer of the present invention formed as described above is used as it is. It can be used after being molded into fat. Further, the functional block copolymer is added to another synthetic resin to impart a function to a resin molded product. In particular, good compatibility can be expected with a resin containing the condensation or vinyl polymer as a main component, which is a segment of this copolymer, so that it can be uniformly and uniformly dispersed in the condensation or vinyl resin. Suitable for compounding functional ingredients. These are blocks that provide functions such as rip resistance, impact resistance, and flame retardancy! : Applies to coalescing o
- the surface layer particularly exhibits functions, for example, in the case of imparting an ultraviolet absorbing property and a surface antifouling property, as described above, a copolymer containing a segment of a low cohesive energy polymer is used as a resin. There is a method of molding by adding and blending them.
- PC bisphenol A type polycarbonate
- PS polystyrene
- polycarbonate PC manufactured by Mitsubishi Gas Chemical Co., Ltd .: “E-200F” powder
- 40.32 g (2.0 mmo 1) and bisphenol A 2.28 g ( 1 Ommo]) and 0.21 g (1.0 mmo) of zinc acetate are suspended in a new, 2,4-trichloro-mouthed benzene 200 m] at 180 ° C.
- the mixture was heated and stirred for 3 hours. After allowing to cool, the mixture was poured into a large excess of methanol, and the precipitate was separated by filtration to obtain 34.1 g of the target substance.
- the yield was 30.9 g, the yield was 87% ', the number average molecular weight by GPC was Mn 19500, and the weight average molecular weight was Mw 4770.
- the average number of repetitions n in the molecule of the polyazo compound was about 5.
- PC Polycarbonate
- PS Polystyrene
- Block copolymerization 24.8 g (7. Ommol) of the azo compound containing PC and styrene monomer (1.2 Og) ) was dissolved in black hole form 200 m], and kept at 80 ° C for 5 h.
- the polymer was recovered by pouring into a large excess of methanol after the combination.
- the yield was 57.2 g and the yield was 39%.
- the number average molecular weight was Mn 27770 and the weight average molecular weight was Mw 62 100.
- PC polycarbonate copolymer
- PS polystyrene
- polycarbonate FC and polystyrene FS were selected at several blending ratios.
- the block copolymer was added in an amount of 5 parts by weight, and the mechanical properties were improved. The effect was examined.
- a reaction type without a compatibilizer and a commercially available modifier (Teikoku Chemical Industry Co., Ltd., product name "Benn et GR-10", EVA-E PDM-L LDPE system) (Graft polymer) was added in the same amount.
- Table 4 shows the results of an Izod impact strength test conducted with reference to JISK71110.PC is originally excellent in impact resistance, and PS The impact strength sharply decreases with the increase, but the addition of 5 parts by weight of a compatibilizer has the function of alleviating the decrease in the impact strength. It can be seen that it has impact properties. Table 4
- Compatibilizer blending amount 5 parts Table 5 shows the results of a vicat softening temperature test conducted with reference to JISK 7206 for the Vicat softening temperature. It can be seen that the ratio has almost no effect.
- Fig. 3 (A) shows a PC-PS blend without a compatibilizer
- the scanning electron microscopy photograph shows that the PC probably has a particle structure in which the PC protrudes in a rod or column shape from the matrix of the PS.
- the particle size of the PC in the matrix was extremely small, and the microstructure was clearly refined. The effect of solubilization is observed.
- Fig. 4 is a similar electron micrograph of a comparative sample using a commercially available modifier, and the sample with the commercial modifier of the comparative example had the same structure as that without the additive. However, although the rod-like particles and their distribution are small, their effect as a compatibilizer is not sufficient.
- This example shows a compatibilizer that can be used for a PC-PS blend resin, but such a PC-PS blend resin can be made to have a particularly fine structure, so that it is optically isotropic and birefringent. Since no phenomenon occurs, it is suitable for use in optical thin plates and thin film materials such as optical recording media and optical displays.
- Example 2
- Polycarbonate (Mitsubishi Gas Chemical Co., Ltd. PC product name "E-2000F" Number average molecular weight 20 320. Weight average molecular weight 30 320) 20.3 g, bisphenol A 2.28 g, zinc acetate 0 as catalyst the. 22 g, ## 2.4 suspended in one-trichlorobenzene 20 Om 1, subjected to a heat ⁇ of 1 80 e C 3 h, was poured into a large excess of methanol was allowed to cool, precipitated By port, polycarbonate diol was obtained. The yield was 86%. According to GPC analysis, it was Mn 2 170 and Mw 2730.
- FC ⁇ polyazo compound synthesized in (II) above Og and benzophenone-type UV-absorbing compound with vinyl terminal (ADK STAB LA—22 ”manufactured by Asahi Denka Kogyo Co., Ltd.) 3.2 5 g was melt
- FC-containing polyazo compound synthesized in ()) of Example 2 5.
- O g and a benzophenone-type ultraviolet absorbing compound having a terminal vinyl group (“ADK STAB LA-22” manufactured by Asahi Denka Kogyo KK) 8 6 g was dissolved in 100 ml of chloroform and heated at 0 ° C. for 1 h; after rejection, poured into a large excess of methanol to collect a precipitate.
- the yield was 50.0, Mn 670,000, 110,300,000, and as a result of 'H-NMR measurement, the PC segment in the proy copolymer and the polybenzophenone segment of the ultraviolet absorbing compound were % By weight was 64%: 36%.
- the copolymer of PC—UV-absorbing compound obtained in (1) above still contains an ab group.
- copolymers of Examples 2 and 3 and the polymer of Comparative Example were respectively added to polycarbonate ("Iupilon S-300", manufactured by Mitsubishi Gas Chemical Co., Ltd.) and cast. A film was produced. The amount of the ultraviolet absorbing compound added was unified to 0.01 ° D, and the film thickness was set to 0.01 m.
- Comparative Example 2 1.4-dihydrokidifenzophenone was used as the UV absorbing compound monomer in the same manner as in 0.0]? A polycarbonate film formed by the addition and a polycarbonate film containing no ultraviolet absorbing compound were prepared as Comparative Example 3.
- low-molecular-weight polyolefin diol manufactured by Sanyo Chemical Co., Ltd., Volitare II
- trioleamine a compound prepared by combining 4.24 g of trioleamine with 0.40 g of triethylamine 50 m1 And 0.63 g of azobiscyanopentanoic acid chloride dissolved in 50 ml of chloroform was added dropwise to the solution under ice-cooling. After was 1 h warmed at 35 e C, was recovered in a large excess of methanol in one le to obtain polyolefin-containing polyazo compound. The yield was 90%, nl 2100. Mwl 6700, and the number of repeating units was 5.2.
- the copolymer PC-P (UVA) of Example 2 with respect to Example 2 above and a benzophenone type ultraviolet absorbing compound (Asahi Denka Kogyo Co., Ltd. product name '-ADK: STB LA22') as a comparative example
- a polycarbonate Mitsubishi Gas Chemical Co., Ltd. “Europion E-2000F”
- a synthetic polyethylene terephthalate film Teijin “A-11”
- the thickness was 40 to 50 itm
- the amount of the ultraviolet absorbing compound added was fixed at 5%
- each of these coating films was made of a polycarbonate plate (made by Yu-Kiron Co., Ltd.).
- Example 6 By press transfer to PC-1600j, a polycarbonate plate having an ultraviolet ray absorbing layer formed on the surface layer was obtained, which was referred to as Example 6 and Comparative Example 4. As Comparative Example 5, a polycarbonate sheet containing no ultraviolet absorber was used. Got ready.
- the compatibilizer of the present invention is a block copolymer having a condensation-based segment and a vinyl-based segment, it can be used for improving the compatibility between blended resins of a condensation-based polymer and a vinyl-based polymer. This is effective for refining the microstructure of the hardly compatible blend resin, and is expected to improve the mechanical strength.
- the method for producing a compatibilizer according to the present invention if the combination of the blend polymers is determined, the combined block copolymer containing the corresponding condensation-based segment and vinyl-based segment can be easily determined.
- the condensation segment to be introduced into the compatibilizer can be easily synthesized from the condensation polymer as the raw material and the divalent alcohol, and it is easy to form a block co-incorporation.
- the functional block copolymer of the present invention is a functional block copolymer composed of a condensation polymer segment and a vinyl polymer segment imparted with functionality, so that it can absorb ultraviolet rays, have flame retardancy, and be resistant to heat. It can be used as a condensed polymer provided with functionality such as impact properties. In addition, this functional block copolymer can be used as an additive for a resin in which the condensed polymer segment can exhibit compatibility. By selecting a vinyl-based segment for imparting functionality, the resin can absorb ultraviolet light, Stable flame retardancy and impact resistance And uniformly.
- the surface of the resin to which this copolymer has been added is particularly good.
- the resin surface can be efficiently imparted with ultraviolet absorbing properties and antifouling properties.
- the functional block copolymer of the present invention makes it possible to adjust the compatibility with the resin to be added by combining the condensation-based polymer segment with another vinyl-based segment. Even for polyolefin resins, it is easy to uniformly disperse the vinyl polymer segments that impart functionality to the resin, and it is easy to impart functionality such as ultraviolet absorption, flame retardancy, and impact resistance.
- a polyazo compound ⁇ polymer ⁇ peroxide compound is used as a polymerization initiator, so that a combination of a condensation-type polymer and a vinyl-type segment can be freely selected to obtain required functionality.
- Proc equipped! Can create a union. Industrial applicability
- the compatibilizing agent and the functional block copolymer of the present invention can be produced in the polymer chemical industry or the synthetic resin industry.In these industries, blended with a polymer material to prepare a blended polymer, It can be used to impart and improve functions such as ultraviolet absorption and flame retardancy to synthetic resins according to their uses.
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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)
- General Chemical & Material Sciences (AREA)
- Graft Or Block Polymers (AREA)
- Other Resins Obtained By Reactions Not Involving Carbon-To-Carbon Unsaturated Bonds (AREA)
- Polyesters Or Polycarbonates (AREA)
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Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE69725405T DE69725405T2 (de) | 1996-05-09 | 1997-05-09 | Funktionelles blockcopolymer und verfahren zu dessen herstellung |
EP97920942A EP0838484B1 (en) | 1996-05-09 | 1997-05-09 | Functional block copolymer and process for preparing the same |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8/140645 | 1996-05-09 | ||
JP14064596A JPH09302196A (ja) | 1996-05-09 | 1996-05-09 | ブロック共重合体型相溶化剤 |
JP8/129818 | 1996-05-24 | ||
JP12981896 | 1996-05-24 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US09/552,245 Division US6359081B1 (en) | 1996-05-09 | 2000-04-19 | Block copolymer with condensation or vinyl polymer, functions imparting, and lower cohesive E segments |
Publications (1)
Publication Number | Publication Date |
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WO1997042243A1 true WO1997042243A1 (fr) | 1997-11-13 |
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PCT/JP1997/001556 WO1997042243A1 (fr) | 1996-05-09 | 1997-05-09 | Copolymere sequence fonctionnel et procede de preparation correspondant |
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US (1) | US6359081B1 (ja) |
EP (1) | EP0838484B1 (ja) |
CA (1) | CA2226337A1 (ja) |
DE (1) | DE69725405T2 (ja) |
WO (1) | WO1997042243A1 (ja) |
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US7638255B2 (en) * | 2001-10-05 | 2009-12-29 | Yokohama Tlo Company, Ltd. | Method for forming image through reaction development |
KR100665802B1 (ko) * | 2004-12-30 | 2007-01-09 | 제일모직주식회사 | 난연성 스티렌계 수지 조성물 |
US9458268B2 (en) | 2014-04-02 | 2016-10-04 | International Business Machines Corporation | Lactide-functionalized polymer |
US9505858B2 (en) | 2014-10-21 | 2016-11-29 | International Business Machines Corporation | Polylactic acid (PLA) with low moisture vapor transmission rates by grafting through of hydrophobic polymers directly to PLA backbone |
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- 1997-05-09 CA CA002226337A patent/CA2226337A1/en not_active Abandoned
- 1997-05-09 DE DE69725405T patent/DE69725405T2/de not_active Expired - Fee Related
- 1997-05-09 EP EP97920942A patent/EP0838484B1/en not_active Expired - Lifetime
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Also Published As
Publication number | Publication date |
---|---|
EP0838484A4 (en) | 1999-05-12 |
CA2226337A1 (en) | 1997-11-13 |
EP0838484A1 (en) | 1998-04-29 |
EP0838484B1 (en) | 2003-10-08 |
US6359081B1 (en) | 2002-03-19 |
DE69725405T2 (de) | 2004-06-17 |
DE69725405D1 (de) | 2003-11-13 |
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