WO2000078709A1 - Alcoxyamine vinyle, son utilisation et son procede de preparation - Google Patents
Alcoxyamine vinyle, son utilisation et son procede de preparation Download PDFInfo
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- C08F12/00—Homopolymers and 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
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- C08F12/02—Monomers containing only one unsaturated aliphatic radical
- C08F12/04—Monomers containing only one unsaturated aliphatic radical containing one ring
- C08F12/14—Monomers containing only one unsaturated aliphatic radical containing one ring substituted by hetero atoms or groups containing heteroatoms
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- C08F257/00—Macromolecular compounds obtained by polymerising monomers on to polymers of aromatic monomers as defined in group C08F12/00
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- C08F265/00—Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00
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- C08F290/00—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups
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- C08F291/00—Macromolecular compounds obtained by polymerising monomers on to macromolecular compounds according to more than one of the groups C08F251/00 - C08F289/00
Definitions
- Patent application title Alkoxyamine containing vinyl group, its use and production method
- the present invention relates to a novel alkoxyamine having a butyl group in the molecule, a method for producing the same, and an alkoxyamine group having a specific structure suspended in the molecular main chain of a high molecular weight product obtained by polymerizing a radical polymerizable monomer.
- the present invention relates to a (pendant) polymer radical polymerization initiator, a method for producing the same, and a Daraphtopolymer obtained using the polymer radical polymerization initiator.
- Alkoxyamines having a bull group in the molecule are already known, for example, from JP-A-60-894452 and Angew. Chem. Int. Ed. Engl., M, 1456-1459. (1995) discloses the technology.
- the alkoxyamine described in Japanese Patent Application Laid-Open No. 60-89452 is obtained by obtaining an alkoxyamine using a special azo compound having a hydroxyl group in the molecule, and then converting the hydroxyl group to (meth) acrylyl. It is obtained by reacting with an acid mouth and esterifying.
- alkoxyamine described in Angew. Chem. Int. Ed. Engl "M, 1456-1459 (1995) thermally decomposes benzoyl peroxide in a styrene solution in the presence of a nitroxide compound. It is obtained by decomposing and synthesizing an alkoxyamine having a hydroxyl group in the molecule, and then reacting it with chloromethylstyrene to introduce a vinyl group into the alkoxyamine.
- the vinyl group-containing alkoxyamide disclosed in the prior art is not used. Is obtained by synthesizing an alkoxyamine having a functional group such as a hydroxyl group and then bonding it to another vinyl compound by an ionization reaction such as an esterification reaction. Therefore, there is a disadvantage that the binding portion is weak to an ionic reaction and easily dissociates and returns to an alkoxyamine having no vinyl group.
- one object of the present invention is to provide a novel butyl group-containing alkoxyamine which has a skeleton which is stable against ion reactions and is useful as a radical generator and the like, and a simple production method thereof. .
- Method I a radical reaction or an ionic reaction to obtain a high molecular weight radical polymerization initiator.
- Another method is to synthesize a compound having both a radical polymerizable butyl group and an alkoxyamine group in the same molecule (hereinafter referred to as “alkoxyamine having a vinyl group”) by synthesis.
- the monomer is polymerized by copolymerization with another monomer to form an alkoxyamine group as a molecule.
- method II a method for obtaining a polymer radical polymerization initiator contained in the polymer
- a polymer radical polymerization initiator is obtained by the above-mentioned "method I". That is, according to the method described in Japanese Patent Application Laid-Open No. 60-89452, a high molecular weight substance (polybutadiene or polyisobutyl methacrylate) having a general structure is synthesized in advance, and a hydrogen atom in the presence of dithroxide is synthesized. By reacting a radical generated in the high molecular weight substance by abstraction with dithroxide present in the system, a high molecular radical polymerization initiator having a pendant group of alkoxyamine in the molecule is obtained.
- a high molecular radical polymerization initiator having a pendant group of alkoxyamine in the molecule is obtained.
- polyethylene is treated with ozone, or a monomer having a peroxide group in a molecule is copolymerized with another monomer.
- the peroxide group is thermally cleaved, and the generated radical is reacted with the monomer present in the system and the nitroxide, whereby an alkoxy group is formed in the molecule.
- a polymer radical polymerization initiator having a pendant group of amine is obtained.
- Anolecoxamine having a hydroxyl group of its own is a nitroxide compound and a styrene monomer.
- benzoyl peroxide Is obtained by thermally decomposing and hydrolyzing the obtained product.
- Method II is relatively superior as a method for obtaining a polymer radical polymerization initiator.
- the conventional technology has the following problems.
- the graft polymer has a structure in which the trunk polymer and the branch polymer are linked by an ester bond.
- this bond is weak against ionic reactions, so that the alkoxyamine group is easily removed from the oligomeric radical polymerization initiator, and even if the graft polymer is obtained, the branched polymer is easily removed. Therefore, there is a problem that physical properties as a graft polymer cannot be exhibited. Also, due to this structural defect, it is expected that a coating film obtained from the graft polymer has poor water resistance, acid rain resistance, weather resistance, and the like.
- the invention described in Japanese Patent Application Laid-Open No. 60-89452 is aimed at obtaining an oligomer in particular, and it is possible to obtain only a graft polymer having a very small molecular weight, particularly a branched polymer.
- the characteristics of the branch polymer portion were not sufficiently exhibited. That is, there is a problem that when the obtained graft polymer is used as a compatibilizer, an emulsifier, a separation stabilizer or the like of a mixture comprising two or more kinds of high molecular weight substances, it does not have a sufficient effect. there were.
- the resulting graft polymer is bonded to the backbone polymer and the branch polymer. Since there is a benzylic hydrogen bonded to an oxygen atom that is very active in radical reactions, the benzylic hydrogen is gradually extracted by oxygen radicals in the air.
- the polymer has a potential structural defect that the branch polymer is likely to be detached from the polymer, and the graft polymer obtained using the polymer radical polymerization initiator has a branched structure.
- the alkoxyamine having a vinylinole group described in Macromolecules, 11, 4396 (1998) is a compound having a non-conjugated vinyl group derived from an aliphatic terminal olefin compound.
- a radical radical polymerization initiator was obtained by easy radical copolymerization, the types of copolymerizable monomers were restricted. That is, there was a problem that it was difficult to obtain a polymer radical polymerization initiator having a polymer main chain composed of a (meth) acrylic acid derivative monomer and a monomer having a conjugated vinyl group such as styrene. .
- another object of the present invention is to provide a polymer radical polymerization initiator which is useful for the synthesis of a graft polymer and has a molecular main chain and an alkoxyamine group bonded by a carbon-carbon bond. And a method for obtaining the polymer radical polymerization initiator by a simple reaction, and using the polymer radical polymerization initiator, the polymer radical polymerization initiator is stable against ion and radical reactions and substantially
- An object of the present invention is to provide a high-purity graft polymer which does not involve the production of a homopolymer of a monomer constituting the polymer. Disclosure of the invention
- a first invention of the present invention is a vinyl group-containing alkoxyxamine represented by the following general formula (1).
- R 1 represents an aryl group or an R 20 group
- R 2 represents a linear or branched alkyl group having 1 to 12 carbon atoms, or a cycloalkyl group.
- R 3 and: 4 Is a tertiary alkyl group having 4 to 6 carbon atoms, or a cyclic structure in which R 3 and R 4 having a total of 8 to 16 carbon atoms are linked.
- a cyclic structure unsubstituted Or a structure substituted with any of an alkyl group, an oxo group, a hydroxyl group, an acyloxy group or an alkoxy group.
- the above-mentioned vinyl group-containing alkoxyamine can be produced by heat-treating dibielbenzene, a dithroxide compound, and an organic peroxide to a thermal decomposition temperature of the organic peroxide.
- organic peroxide it is preferable to use aromatic diacyl peroxide or peroxydicarbonate.
- R 3 and R 4 are each a tertiary alkyl group having 4 to 6 carbon atoms, or a cyclic structure in which R 3 and R 4 having a total of 8 to 16 carbon atoms are linked to each other; In the case of a structure, the structure is unsubstituted or substituted with any of an alkyl group, an oxo group, a hydroxyl group, an acyloxy group or an alkoxy group.
- the vinyl group-containing alkoxyamine represented by the general formula (1) can be hydrolyzed to produce the butyl group-containing alkoxyamine represented by the general formula (2).
- the present inventors have proposed a high-molecular radical polymerization initiator using an industrially available and inexpensive raw material, and using an alkoxyamine having a specific butyl group obtained by a one-step simple method. Can be obtained. Further, by bonding between the molecular main chain of the polymer radical polymerization initiator and an alkoxyamine group and polymerization using the polymer radical polymerization initiator, a trunk polymer and a branch polymer can be obtained. Are linked by stable carbon-carbon bonds, resulting in a highly pure graft polymer having a uniform, narrow molecular weight polydispersity and a very low homopolymer content. Got a look.
- Another invention in the present application is a polymer obtained by polymerizing a radical polymerizable monomer, and the following general formula (3)
- R 5 is an unsubstituted or substituted phenylene group having a substituent on the ring
- R 6 is hydrogen, a tertiary alkyl group having 4 to 8 carbon atoms, a benzoyl group, a methylbenzoyl group, or R 13 OC ( O) is a group, wherein R 13 represents a linear or branched alkyl or alkoxyalkyl group having 1 to 10 carbon atoms, or an unsubstituted or alkyl group having a substituent in the ring.
- R 7 to R 1 2 are each carbon number linear or branched alkyl group or R 7 and R 1 D carbon number 1-4 to be selected are linked independently are cyclic structures 4-1 0.
- R 5 is phenylene group having a substituent on the unsubstituted or ring
- R e is hydrogen, tertiary alkyl groups of 4-8 carbon atoms, Benzoinore group, Mechirubenzoiru group or R] 3 OC
- ( ⁇ ) is an group, wherein R 13 represents a cycloalkyl group having a linear or branched aralkyl kill group or an alkoxyalkyl group or an unsubstituted or ring substituent, having 1 to 1 0 carbon.
- R 7 ⁇ R ] 2 is a linear or branched alkyl group having 1 to 4 carbon atoms, each independently selected, or a cyclic structure having 4 to 10 carbon atoms in which R 7 and R 1 C1 are linked. In the case of a cyclic structure, it is unsubstituted or substituted by an alkyl group, a hydroxy group, an acetoxyl group, a benzoyloxy group, a methoxy group or an oxo group, and R 14 is a hydrogen or a methyl group.
- the compound represented by And (A), the radical polymerizable monomer and (B 1), radical polymerization opening A mixture comprising the initiator (C) and the radical polymerization initiator (C) is decomposed and heated in a temperature range in which the compound (A) is not decomposed. It is a manufacturing method.
- a different invention provides a polymer radical polymerization initiator and a radical polymerizable monomer (B 2) in which an alkoxyamine group represented by the above general formula (3) is suspended. It is a graft polymer obtained by heating in the range of ° C.
- FIG. 1 is a 1 H-NMR spectrum diagram of a polymer radical polymerization initiator of Example 16 according to the present invention.
- the vinyl group-containing alkoxyamine according to the present invention is a compound represented by the general formula (1).
- R 1 represents an aryl group or an R 2 ⁇ group.
- R 2 represents a linear or branched alkyl group having 1 to 12 carbon atoms, preferably 3 to 10 carbon atoms, or a cycloalkyl group. Represents a group.
- R 3 and R 4 are each a tertiary alkyl group having 4 to 6 carbon atoms, or a linked cyclic structure having a total of 8 to 16 carbon atoms, preferably 8 to 12 carbon atoms, of R 3 and R 4 .
- a cyclic structure the structure is unsubstituted or substituted by any one of an alkyl group, an oxo group, a hydroxyl group, an alkoxy group and an alkoxy group.
- Specific compounds of the butyl group-containing alkoxyamine represented by the general formula (1) of the present invention include 2- (benzoyloxy) 1-1- (2 ', 26', 6'-tetra Methyl-1'-piperidinyloxy) 1-1- (4'-Burfenyl) ethane, 2- (4'-Methylbenzoyloxy) 1-1- (2 ', 26', 6'-Tetramethyl 1 1'-piperidinyloxy) 1 1- (4,1'-bininolephenoxy) ethane, 2 1- (isopropyloxycarbonyloxy) _1 1 '(2', 2 ', 6', 6 ' Lamethinole 1'—piperidinoleoxy) 1 1— (4,1-bininolephenoxy) ethane, 2- (isopropyloxycarbonyloxy) 1 1— (2 ', 2', 6 ', 6' tetramethinole 1'-piperidiny
- the butyl group-containing alkoxyamine represented by the general formula (1) of the present invention is formed by heating a mixture of divinyl benzene, a nitroxide compound and an organic peroxide to generate oxy radicals, which are added to divinyl benzene.
- the produced carbon-centered radical can be produced by trapping it in a nitroxide compound.
- the -troxide compound specifically, 2,2,6,6-tetramethylpiperidine-1-oxyl, 4-oxo-1,2,2,6,6-tetramethinoleviperidine-1-oxyl, 4-hydroxy-1,2,2,6,6-tetramethinolepiperidin-1-oxyl, 4-methoxy-1,2,2,6,6-tetramethylpiperidine 1-1oxynole, 4-benzoy Noreoxy-2,2,6,6-tetramethinolepiperidin-1-oxyl, 4-acetoxy-1,2,2,6,6-tetramethylpiperidine-1-1-oxynole, 2,2,5,5-te Tramethinolepyrrolidine-l-oxinole, 1,1,3,3-tetramethylisoindoline-l-oxyl, di-butynolenite mouth oxide, and the like.
- the organic peroxide is not particularly limited.
- organic peroxides such as alkyl hydroperoxides, dialkyl peroxides, diacinolesulfoxides, peroxydicarbonates, acylsolephoninolenolesoxides, peroxyesters, peroxycarbonates, ketone peroxides, and peroxyketals. Things can be used. Of these, heat Those which decompose to selectively generate oxy radicals are preferred. Organic peroxides that decompose at a temperature of 120 ° C. or lower are preferable in order to avoid decomposition of the alkoxyamine. For this reason, aromatic diacylperoxides and peroxydicarbonates are most preferred.
- organic peroxides include benzoyl peroxide, 4,4'-dimethylbenzoinoleperoxide, gisopropyl peroxydicarbonate, and g: n-propynolephenol.
- Examples of the method for decomposing these organic peroxides include a method for decomposing by heat or light, and a redox decomposition method using an accelerator in combination, and are not particularly limited.
- the dibutylbenzene used for obtaining the vinyl group-containing alkoxyamine represented by the general formula (1) of the present invention includes a meta-form (1,3-dibutyl-Kunsen) and a para-form (1,4-dibutylbenzene). Or a mixture of the meta-form and the para-form.
- the amount of divinylbenzenenonitroxide compound used is 1 to 1 Is more preferable, and more preferably in the range of 3 to 20. If it is less than 1, it becomes difficult to introduce an alkoxyamine into only one vinyl group of dibutylbenzene, and a bifunctional alkoxyamine tends to be produced. On the other hand, when it exceeds 100, a large amount of unreacted dibutylbenzene tends to remain.
- the reaction temperature at the time of synthesizing the bull group-containing alkoxyamine of the present invention is preferably from 10 to 120 ° C, more preferably from 40 to 100 ° C. If the temperature is lower than 10 ° C, the decomposition rate of peroxide becomes low, and if the temperature is higher than 12 ° C, the generated vinyl group-containing alkoxyamine tends to decompose or polymerize.
- the vinyl group-containing alkoxyamine having a hydroxyl group according to the present invention is a compound represented by the general formula (2).
- R 3 and R 4 are each a tertiary alkyl group having 4 to 6 carbon atoms, or a cyclic structure in which R 3 and R 4 having a total of 8 to 16 carbon atoms are connected.
- a cyclic structure the structure is unsubstituted or substituted by any one of an alkyl group, an oxo group, a hydroxyl group, an acyloxy group and an alkoxy group.
- Specific compounds of the hydroxyl group-containing alkoxyamine having a hydroxyl group according to the present invention include 2-hydroxy-1- (2 ′, 2 ′, 6 ′, 6′-tetramethyl-1- 1′-piperidinyloxy) One 1— (4′—Burf feninole) ethane, 2—Hydroxy-1-(2 2 6 6 ′) —Tetramethyl-1,1 piperidinyloxy) One 1— (3′-Bin feninole) ethane, 2 —Hydroxy-1— (4′-Hydroxy—2 ′, 2 6 6′—Tetramethyl-1-1′—Piperidinyloxy) 1-1— (4, —Burfenyl) ethane, 2-Hydroxy-1— (4, 1-benzoinoleoxy-2 ', 2', 6 ', 6'-tetramethyl-1- 1'-piperidinyloxy) 1 1- (4'-bierf
- the vinyl group-containing alkoxyamine having a hydroxyl group represented by the general formula (2) of the present invention is an ester bond (carbonyldioxy group) of the vinyl group-containing alkoxylamine represented by the general formula (1). ) Can be produced by hydrolyzing the site.
- the method for hydrolyzing the ester bond is not particularly limited, but may be performed by a usual method such as adding an aqueous solution of sodium hydroxide solution and heating. be able to.
- the solution was concentrated under reduced pressure, and 1.72 g of the target substance was obtained by column chromatography (on silica gel, using a mixed solution of dichloromethane and hexane (1Z1) as eluent) to obtain 1.72 g of the target substance. %.
- di-n-propylperoxydicarbonate 2.08 g (10 mm o 1) And heated at 55 ° C. for 5 hours under a nitrogen stream.
- the solution was concentrated under reduced pressure, and 3.46 g of the desired product was obtained by column chromatography (on silica gel, using a mixed solution of dichloromethane and hexane (1/1) as an eluent) to yield 3.46 g of the desired product. %.
- the substance was identified by 1 H-NMR analysis, MS analysis, and elemental analysis to identify the substance. The results are shown below. These minutes From the results of the analysis, the obtained substance was represented by the following formula (10)
- the solution was concentrated under reduced pressure, and column chromatography (using a mixed solution of dichloromethane and hexane (lZl) as eluent on silica gel) was performed to obtain 2.01 ⁇ of the target compound in a yield of 53.2. %.
- the substance was identified by 1 H-NMR analysis, MS analysis, and elemental analysis to identify the substance. The results are shown below. From the results of these analyses, the substance obtained was represented by the following formula (13)
- Example 1 2-(Isopropinoleoxycarbonyloxy) 1 1-4 '-acetoxy 2', 2 ', 6 ', 6'-tetramethyl-1- 1'-piperidinyloxy) 1- (4'-bininolephenyl) ethane and 2-(isopropyloxycarbonylcarbonyl) 1-11 (4, -acetoxy-1) Synthesis of 2 ', 2', 6 6'-tetramethinole-1'-piperidinyloxy) — 1— (3,1-Burfphenyl) ethane mixture>
- Example except that a mixture of 1,3-dibininolebenzene and 1,4-divinylbenzene (Nippon Steel Chemical Co., Ltd., product name: DVB-960) was used instead of 1,4-dibininolebenzene
- the reaction was carried out according to 9 to give 3.16 g of the desired product in a yield of 70.5%.
- the substance was identified by 1 H-NMR, 13 C-NMR, LC-MS, and elemental analysis to identify the substance.
- Example 12 2 2- (Isopropynoleoxycarbonyloxy) 1-1- (4'-hydroxy-1 2 ', 2', 6 ', 6'-tetramethyl-1'-piperidininoleoxy) -1 Synthesis of 1- (4'-bi-no-refine) ethane>
- Example 13 3 2- (isopropyloxycarbonyloxy) — 1- (4, -hydroxy-1 2 ′, 2 ′, 6 ′, 6′—tetramethyl-1- 1′—piperidinyloxy) 1 1- (4'-bininolepheninole) ethane and 2- (isopropinoleoxycanoleboninoleoxy) 1 1 (4'-hydroxyl 2 ', 2', 6 ', 6'-tetramethyl-1,1 Synthesis of a mixture of piperidinyloxy) 1 and 1 (3,1 butylphenyl) ethane>
- Example 14 2—Hydroxy-1 11 (4′—Hydroxy-1 2 ′, 2 ′, 6 ′, 6′-Tetramethyl-1- 1′—Piperidinyloxy) 1-1— (4′-Burfenyl) Ethane and 2-hydroxy 1- (4'-hydroxy 2 ', 2', 6 ', 6, 1-tetramethylinone 1'-piperidinyloxy) 1 1- (3'-bininolepheninole) Synthesis of mixture>
- Example 11 (2- (Isopropyloxycarbonyloxy) 1-1- (4'-Acetoxy-1'-2 ', 2', 6 ', 6'-Tetramethyl-1'-piperidinyloxy) obtained in Example 1 ) 1-11 (4'-bininolepheninole) ethane and 2- (isopropinoleoxycarbonyloxy) 1 1- (4, -acetoxy-1 '2', 26 ', 6, 1-tetramethyl-1'-piperidini Roxy) 1 1 1 1 (3, 1-vinylphenyl) ethane mixture 2. 24 g (5 mm o 1) was dissolved in 50. O g of ethanol.
- R 5 is an unsubstituted or substituted phenylene group having a substituent on the ring
- R 6 is hydrogen, a tertiary alkyl group having 4 to 8 carbon atoms, a benzoyl group, a methylbenzoyl group, or R 13 OC (O) is a group, wherein R 13 is a straight-chain or branched alkyl or alkoxyalkyl group having 1 to 10 carbon atoms, or an unsubstituted or cyclic substituted group. Represents an alkyl group.
- R 7 to R 12 are independently selected linear or branched alkyl groups having 1 to 4 carbon atoms or a cyclic structure having 4 to 10 carbon atoms in which R 7 and R 1 ° are linked. .
- a cyclic structure it is unsubstituted or substituted by an alkyl group, a hydroxy group, an acetoxyl group, a benzoyloxy group, a methoxy group or an oxo group.
- the molecular weight of the high-molecular radical polymerization initiator can be appropriately determined according to the required properties of the graft polymer, and is based on the styrene-equivalent molecular weight measured by gel permeation chromatography (hereinafter referred to as GPC).
- GPC gel permeation chromatography
- the number average molecular weight is preferably in the range of 300,000 to 500,000, and more preferably in the range of 500,000 to 400,000.
- the molecular weight of the high molecular radical polymerization initiator is less than 300, the physical properties of the backbone polymer tend not to be sufficiently exhibited when the polymer is formed into a graft polymer. It is not preferable because the viscosity of the high molecular radical polymerization initiator in a solution state is increased, and the workability during the production of the initiator and the production of the graft polymer tends to deteriorate.
- the average number of pendant alkoxyamine pendant groups per molecule of the polymer radical polymerization initiator of the present invention is preferably in the range of 3 to 200, and more preferably 5 to 100. Les, preferably in the range of pieces. Even when the number of alkoxyamine groups is one or two, the effect as a graft polymer can be exhibited by sufficiently increasing the molecular weight of the branch polymer. When the average number of amine groups is less than 3, a high molecular weight compound having no alkoxyamine group in the molecule is easily generated, and when a graft polymer is used, the physical properties of the branched polymer can be sufficiently exhibited. It is not preferable because it tends to disappear. On the other hand, if the average number is more than 200, the physical properties of the backbone polymer tend not to be sufficiently exhibited, which is not preferable.
- the polymer radical polymerization initiator as described above can be obtained as follows. That is, a compound (A) represented by the general formula (4) having both a radical polymerizable vinyl group and an alkoxyamine group in the same molecule (hereinafter referred to as compound A) and a radical polymerizable monomer A mixture of (B 1) and the radical polymerization initiator (C) is heated in a temperature range in which the radical polymerization initiator (C) is decomposed and the compound (A) is not decomposed (hereinafter, referred to as first-stage polymerization). ).
- R 5 is an unsubstituted or substituted phenylene group having a substituent on the ring, is hydrogen, a tertiary alkyl group having 4 to 8 carbon atoms, a benzoyl group, a methylbenzoyl group, or R 13 OC (O) is one group, wherein R 13 represents a linear or branched alkyl or alkoxyalkyl group having 1 to 10 carbon atoms, or an unsubstituted or cycloalkyl group having a substituent in a ring.
- R 7 to Ri 2 are independently selected linear or branched alkyl groups having 1 to 4 carbon atoms or a cyclic structure having 4 to 10 carbon atoms in which R 7 and R 1 C) are linked. .
- R 7 and R 1 C are linked.
- R 14 is hydrogen or a methyl group.
- Specific examples of the compound (A) represented by the general formula (4) include 2- (2 2 ', 66'-tetramethyl-1'-piperidinyloxy) 1-2- (4,1-vinylphenyl) ) Ethanore, 2— (4'—Hydroxy 2 ', 2', 6 ', 6'-Tetramethinole 1'-Piperidinyloxy) 1 2— (3, -bininole feninole) Ethanore, 2 — t—butoxy 11- (2 ', 2', 6 ', 6'-tetramethyl-1'-piveridinyloxy) 1 1- (4'-bininolephenyl) ethane, 2-t-butoxy 1 1 — (4'-Hydroxy- 1 2 2 ', 6 6'-Tetramethyl- 1'-Pyridininolexy) 1-1-1-1 (3'-Vininolephenoxy) ethane, 2-t-butoxy
- the radically polymerizable monomer (B 1) used in the first-stage polymerization is a butyl monomer copolymerizable with the compound (A), and is a trunk polymer of the intended graft polymer.
- specific examples of the c compounds which can be appropriately selected from those suitable for constituting the polymer (a) copolymerizable with the radical-polymerizable monomer (B 1), styrene, p- methyl Styrene monomers such as styrene, chronoremethinolestyrene, and ⁇ -methinorestylene; carboxyl group-containing vinyl monomers such as acrylic acid, methacrylic acid, crotonic acid, itaconic acid, maleic acid, and fumaric acid; and maleic anhydride.
- Acid anhydride, itaconic anhydride and other acid anhydride group-containing monomer methyl (meth) acrylate, ethyl (meth) acrylate, propyl (meth) acrylate, (meth) Butyl acrylate, 2-methylhexyl (meth) acrylate, desinole (meth) atalinoleate, 2-hydroxyhydryl (meth) acrylate, 2-hydroxypropinole (meth) acrylate, 3 — Ester group-containing vinyl monomers such as hydroxypropyl (meth) acrylate, hydroxybutyl (meth) acrylate, glycidyl (meth) acrylate, dimethyl fumarate, getyl fumarate, and dibutyl fumarate; B) isocyanate group-containing vinyl monomers such as 2-isocyanateethyl acrylate and m-isopropenyl-1- ⁇ , ⁇ -dimethylbenzyl isocyanate;
- radically polymerizable monomers particularly preferred are radically polymerizable monomers containing an oxygen atom or a nitrogen atom in the molecule, specifically, a carboxy-containing monomer and an acid anhydride group.
- radical polymerizable monomers can be used alone or in combination of two or more.
- only radical polymerizable monomers other than styrene may be used in the first stage polymerization. It is more preferable to use a monomer mixture containing at least one kind of radical polymerizable monomer other than styrene. This is because, in producing a graft polymer using the polymer radical polymerization initiator of the present invention, in order to obtain a branch polymer having a more controlled molecular weight, it is necessary to use a monomer containing a styrene-based monomer. It is more preferable.
- the amounts of the compound (A) and the radically polymerizable monomer (B 1) used in the first-stage polymerization are determined according to the amount of the alkoxyamine desired in the obtained polymerized radical polymerization initiator. Although it can be appropriately selected depending on the number of min groups, it is usually preferable that the molar ratio of (B 1) to (A) be in the range of 10 to 500 times. New If the molar ratio of the radical polymerizable monomer (B 1) is less than 10 times, the chain length of the backbone polymer between the branch polymers becomes too short in the case of the daft polymer, and the backbone polymer becomes too short. On the other hand, if it exceeds 500 times, the chain length of the backbone polymer between the branch polymers tends to be too long and the physical properties of the branch polymer tend not to be sufficiently developed. Not preferred.
- the radical polymerization initiator (C) decomposes a mixture comprising the compound (A), the radically polymerizable monomer (B1) and the radical polymerization initiator (C).
- the reaction is performed in a temperature range where the compound (A) does not decompose.
- the specific polymerization temperature is preferably from 0 to 120 ° C, more preferably from 20 to 100 ° C.
- the polymerization temperature is lower than or equal to o ° C, the polymerization rate is slow and it takes a long time to complete the polymerization, which is economically disadvantageous.
- the polymerization temperature is 120 ° C. or higher, the decomposition of the compound (A) becomes remarkable, and as a result, it becomes difficult to control the structure of the finally obtained graft polymer, resulting in gel formation, It is not preferable because the purity of the graft polymer is reduced.
- radical polymerization initiator (C) used in the first stage polymerization a usual organic peroxide or azo compound can be used, but it is effective under the above polymerization temperature conditions. It is preferable to use one that can generate a radical, and therefore, it is appropriate to select an appropriate one depending on the polymerization temperature.
- radical polymerization initiator (C) usually used include t-butynolenooleoxy neodecanoate, t-octinole peroxy neodecanoate, t-butyl peroxybivalate, t-hexylperoxybivalate, t-butylinolenoxoxy 2-ethylhexanoate, t-octinolenoyloxyisobutyrate, t-butynolenoyloxyisopinolate carbonate, t-butynoleperoxylaureate Peroxyesters such as tert-butylperoxybenzoate, isobutyrylperoxide, 3,5,5-trimethinolehexanolyl oleoxide, lauroylolenoleoxide, benzoinolenoleoxide Peroxydicarbonates, such as diacylperoxides, dipropylperoxydi
- the first-stage polymerization can be carried out by a known polymerization method such as bulk polymerization, suspension polymerization, solution polymerization, and emulsion polymerization.
- the type of monomer, polymerization temperature, and desired polymer radical It can be appropriately selected depending on the molecular weight of the polymerization initiator and the like.
- a water-soluble polymer protective agent and a sparingly soluble inorganic substance can be added to the polymerization system as a dispersant.
- the water-soluble polymer protective colloid agent include polyvinyl alcohol, polyvinylpyrrolidone, methylcellulose and the like, and among these, polyvinyl alcohol is preferred.
- Insoluble inorganic substances include calcium tertiary phosphate, magnesium phosphate, Examples include calcium phosphate and bentonite.
- an anionic surfactant such as sodium dodecylbenzenesulfonate and ⁇ -olefin sonolephonate.
- the solvent when solution polymerization is employed for the first-stage polymerization, specific examples of the solvent include aromatic hydrocarbon solvents such as toluene, xylene, and ethylbenzene, methylethyl ketone, and methyl isobutyl ketone.
- Ketone solvents ester solvents such as ethyl acetate, butyl acetate, and isobutyl acetate; methanol solvents, isopropyl alcohol; phenol solvents such as ⁇ -butynoleanol; ethylene glycol solvents; ethylene glycol monoethylene acetate; Ethyleneglycolone-based solvents such as ethyleneglycol monomethineoleatenoate, ethyleneglycol monomethineoleatenoateate, ethyleneglycol monomethineoleatenoate acetate, diethyleneglycol monoleate, diethyleneglycol monoleatemethinole Athenore, Diethylene glycol-based solvents such as diethylene glycol / lemonobutynoleatene, propylene glycol and propylene glycol-based solvents such as propylene glycol methyl tererate acetate, and these may be used alone or as a mixture. Can be.
- ⁇ -methylstyrene dimer (2,4-diphenylene 4-methynolate 1-pentene), ta-pinolene, ⁇ -octylmercaptan, t-dodecinolemenolecaptan, 2
- a known chain transfer agent such as menolecaptoethanol or thiophenol can be used.
- the polymer radical polymerization initiator is used as it is, or after a purification step such as solvent distillation or reprecipitation, to obtain a polymer for obtaining a graft polymer (hereinafter referred to as “polymerization polymerization”).
- polymerization polymerization a polymer for obtaining a graft polymer
- the second-stage polymerization a polymer for obtaining a graft polymer
- the second-stage polymerization is carried out by heating a mixture containing the polymer radical polymerization initiator represented by the general formula (3) and the radical polymerizable monomer (B 2). That is, the polymer radical polymerization initiator represented by the general formula (3) is cleaved by thermal action into a carbon radical bonded to the backbone polymer side and a stable dithoxide radical. Carbon radicals initiate addition polymerization with radically polymerizable monomers (B 2) present in the system. On the other hand, the nitroxide radical does not initiate polymerization, but the polymerization reaction proceeds while repeating recombination and re-cleavage with the growing polymer radical from the carbon radical. The second stage polymerization is performed.
- the second-stage polymerization can be carried out by a known polymerization method such as bulk polymerization, suspension polymerization, solution polymerization and emulsion polymerization, similarly to the first-stage polymerization. It can be appropriately selected depending on the temperature, the desired molecular weight of the polymer radical polymerization initiator, and the like.
- the radical polymerizable monomer (B 2) used in the second-stage polymerization may be a radical polymerizable monomer (B 1) that can be used in the first-stage polymerization.
- a radical polymerizable monomer (B 1) that can be used in the first-stage polymerization.
- those selected according to the required physical properties of the obtained graft polymer can be used as appropriate, but for the purpose of effectively increasing the molecular weight of the branch polymer of the graft polymer obtained in the second stage polymerization or
- the molecular weight of the branch polymer of the graft polymer obtained in the second-stage polymerization can be appropriately determined depending on the relationship with the molecular weight of the backbone polymer and the molecular weight of the intended graft polymer.
- the branch polymer is usually converted into styrene by GPC.
- the molecular weight is preferably in the range of 1,000 to 150,000, more preferably in the range of 2000 to 100,000.
- the graft polymer In this case, the physical properties of the branched polymer tend to be insufficiently expressed, while when it exceeds 150,000, the physical properties of the trunk polymer tend to be insufficiently expressed, which is not preferable.
- the polymerization temperature of the second stage polymerization is preferably in the range of 100 to 180 ° C, more preferably in the range of 110 to 160 ° C. If the polymerization temperature is 100 ° C. or lower, the decomposition rate of the polymer radical polymerization initiator becomes slow, and as a result, the polymerization time tends to be long, which is not preferable. On the other hand, when the polymerization temperature is higher than 180 ° C, it becomes difficult to control the polymerization rate, and the radical polymerization (B2) homopolymer added during the second-stage polymerization is formed by thermal polymerization. This is not preferable because the purity of the graft polymer decreases as a result.
- the compound (A) for obtaining the polymer radical polymerization initiator of the present invention was synthesized in advance as follows.
- Divinylbenzene (“DVB-960", an isomer of m- and p-divinylbenzene, manufactured by Nippon Steel Chemical Co., Ltd.) was added to four 100 ml flasks equipped with a stirrer, condenser and nitrogen gas inlet tube. Mixture, 96% purity) 50 g of a mixture of 4-hydroxy 2,2,6,6-tetramethylpiperidine-111-oxynole (HO-TEMPO) 8.61 g (50 mm o 1) And the contents were replaced with nitrogen. Then, the content was heated to 50 ° C, and 11.6 g (5.56 mmol) of diisopropyl phenoloxy dicarbonate (IPP) was added in portions over 20 minutes.
- IPP diisopropyl phenoloxy dicarbonate
- the weight of the high molecular weight product obtained by the above operation was 2.91 g, and the yield was 58.2. /. Met.
- the molecular weight was measured by GPC, and it was confirmed that the poly MMA had a number average molecular weight of 200,000 and a weight average molecular weight of 34,000 in terms of styrene.
- FIG. 1 shows the 1 H-NMR spectrum of this compound (Tetramethinolesilane (TMS) double-chloroform (CDC 3 )).
- TMS Tetramethinolesilane
- CDC 3 CDC 3
- the attribution of each proton is as follows. ( ⁇ (ppm))
- the ratio of the benzene ring proton derived from compound A-1 to the proton derived from the ester methyl group of poly MMA indicates that the average molecular weight of the polymer is 6.8 per molecule. It was found that the alkoxyamine group was introduced.
- this compound was a polymeric radical polymerization initiator of the present invention represented by the following formula (18) (hereinafter referred to as LRPI-1).
- a polymer radical polymerization initiator was synthesized in the same manner as in Example 16 except that the types and amounts of the compound A and the monomer, and the polymerization temperature and time were changed. Table 1 shows the results of the analysis of the synthesized product along with various conditions in the synthesis.
- CMS Chloromethylstyrene (mixture of m-form and p-form)
- HPV t-silver oxybivalate (Nippon Oil & Fats Co., Ltd. ——Heil-PV)
- BPV t-butyl peroxybivalate (“Perbutyl P Vj” manufactured by NOF Corporation)
- a 30 Omm four-necked flask equipped with a stirrer, condenser, thermometer, and nitrogen gas inlet tube was charged with 30 g of diethylene glycol dimethyl ether as a solvent, and the solvent and the space inside the container were sufficiently replaced with nitrogen gas. .
- this compound was a polymeric radical polymerization initiator of the present invention represented by the following formula (22) (hereinafter referred to as LRPI-5).
- the weight of the obtained high molecular weight product was 7.0 g, and the conversion of styrene was 50.0%. According to GPC measurement, the molecular weight of the obtained high molecular weight product was 66,000 in number average molecular weight and 97,000 in weight average molecular weight in terms of styrene. Furthermore, the composition of the high-molecular-weight product obtained by fractional extraction using a Soxhlet tube was 97% for a graft copolymer of styrene and MMA, 3% for a polystyrene homopolymer, and It was confirmed and confirmed that it contained almost no MMA homopolymer or gel component. Further, as a result of analyzing the composition ratio of the graft by 1 H-NMR, it was found that the branch polymer portion was composed of an average of 68.5 styrene monomers.
- Example 21 Using the polymer radical polymerization initiator of the present invention synthesized in Examples 17 to 20, the graft polymer of the present invention was synthesized in the same manner as in Example 21 according to the polymerization conditions shown in Table 2 below. Was. The results of these analyzes are also shown in Table 2.
- B A denotes butyl acrylate.
- the vinyl group-containing alkoxyamine represented by the general formula (1) of the present invention is a novel compound, and is a radical generator, a polymerization initiator for a vinyl monomer, an antioxidant for an ethylene polymer, or ethylene. It is useful as a scorch inhibitor when heating and cross-linking a polymer.
- the above compound is stable to ionic reactions because the vinyl group and the alkoxyamine group are bonded by a strong carbon-carbon bond, and has high industrial utility value.
- the above compound can be produced using industrially available and inexpensive raw materials, and can be produced by a one-step simple production method, and by converting a part of the above compound into a hydroxyl group.
- a vinyl group-containing alkoxyamine having a hydroxyl group which is useful for introducing a functional group or initiating ring-opening polymerization, can be obtained.
- a polymer polymerization initiator in which a pendant group of an alkoxyamine having a specific structure is suspended in a molecular main chain by bonding to a stable carbon-carbon.
- the backbone polymer and the branch polymer are bonded to each other by bonding to stable carbon-carbon, and a graft polymer stable to ionic and radical reactions can be obtained with high purity.
- the graft polymer obtained by the present invention may be used, for example, as a compatibilizer, a surfactant, a pigment dispersant, an adhesion improver, etc., for uniformly mixing at least two or more types of mutually incompatible high-molecular-weight polymers. It has an excellent effect on the application.
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- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Polymerization Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
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Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00927796A EP1188742B1 (en) | 1999-06-23 | 2000-05-17 | Vinylated alkoxyamine, use thereof, and process for producing the same |
AU46142/00A AU4614200A (en) | 1999-06-23 | 2000-05-17 | Vinylated alkoxyamine, use thereof, and process for producing the same |
AT00927796T ATE284862T1 (de) | 1999-06-23 | 2000-05-17 | Vinylierte alkoxamine, ihre verwendung und ein verfahren zu ihrer herstellung |
US09/959,754 US6919481B1 (en) | 1998-07-22 | 2000-05-17 | Alkoxyamines containing a vinyl group, their applications and methods of their production |
DE60016745T DE60016745T2 (de) | 1999-06-23 | 2000-05-17 | Vinyliertes Alkoxyamin, seine Verwendung und Verfahren zu seiner Herstellung |
KR1020007013626A KR20010071375A (ko) | 1999-06-23 | 2000-05-17 | 비닐기 함유 알콕시아민, 그 용도 및 제조방법 |
Applications Claiming Priority (4)
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JP17742299A JP4433516B2 (ja) | 1998-07-22 | 1999-06-23 | ビニル基含有アルコキシアミンおよびその製造方法 |
JP11/177422 | 1999-06-23 | ||
JP24205299A JP4665270B2 (ja) | 1999-08-27 | 1999-08-27 | 高分子ラジカル重合開始剤、その製造方法およびそれを用いて得られるグラフトポリマー |
JP11/242052 | 1999-08-27 |
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WO2000078709A1 true WO2000078709A1 (fr) | 2000-12-28 |
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PCT/JP2000/003170 WO2000078709A1 (fr) | 1998-07-22 | 2000-05-17 | Alcoxyamine vinyle, son utilisation et son procede de preparation |
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EP (1) | EP1188742B1 (ja) |
KR (1) | KR20010071375A (ja) |
AT (1) | ATE284862T1 (ja) |
AU (1) | AU4614200A (ja) |
DE (1) | DE60016745T2 (ja) |
WO (1) | WO2000078709A1 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2790259A1 (fr) * | 1999-02-25 | 2000-09-01 | Ciba Sc Holding Ag | Amines a empechement sterique substituees sur l'azote par des groupes alcoxy comprenant des groupes hydroxy, et leurs applications comme stabilisants. |
US6376584B1 (en) | 1999-02-25 | 2002-04-23 | Ciba Specialty Chemicals Corporation | Hydroxy-substituted N-alkoxy hindered amines and compositions stabilized therewith |
US6380389B2 (en) | 1999-02-25 | 2002-04-30 | Ciba Specialty Chemicals Corporation | Hydroxy-substituted N-alkoxy hindered amines and compositions stabilized therewith |
US6392041B1 (en) | 1999-02-25 | 2002-05-21 | Ciba Specialty Chemicals Corporation | Hydroxy-substituted N-alkoxy hindered amines and compositions stabilized therewith |
Families Citing this family (3)
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EP1375457A1 (en) * | 2002-06-25 | 2004-01-02 | Bayer Aktiengesellschaft | One-pot process for the preparation of functionalized alkoxyamines |
EP1375476A1 (en) * | 2002-06-25 | 2004-01-02 | Bayer Aktiengesellschaft | A new process for the synthesis of alkoxyamines active in controlled radical polymerization |
FR2853317B1 (fr) * | 2003-04-01 | 2006-07-07 | Atofina | Alcoxyamines issues de nitroxydes b-phosphores, leur utilisation pour la preparation de mono-ou polyalcoxyamines, polymerisees ou non |
Citations (1)
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JP2000095744A (ja) * | 1998-07-22 | 2000-04-04 | Nof Corp | ビニル基含有アルコキシアミンおよびその製造方法 |
-
2000
- 2000-05-17 KR KR1020007013626A patent/KR20010071375A/ko not_active Application Discontinuation
- 2000-05-17 EP EP00927796A patent/EP1188742B1/en not_active Expired - Lifetime
- 2000-05-17 AU AU46142/00A patent/AU4614200A/en not_active Abandoned
- 2000-05-17 WO PCT/JP2000/003170 patent/WO2000078709A1/ja not_active Application Discontinuation
- 2000-05-17 AT AT00927796T patent/ATE284862T1/de not_active IP Right Cessation
- 2000-05-17 DE DE60016745T patent/DE60016745T2/de not_active Expired - Lifetime
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JP2000095744A (ja) * | 1998-07-22 | 2000-04-04 | Nof Corp | ビニル基含有アルコキシアミンおよびその製造方法 |
Non-Patent Citations (1)
Title |
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HAWKER CRAIG J. ET AL.: "Preparation of hyperbranched and star polymers by a 'living', self-condensing free radical polymerization", J. AM. CHEM. SOC., vol. 117, no. 43, 1995, pages 10763 - 10764, XP002931594 * |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2790259A1 (fr) * | 1999-02-25 | 2000-09-01 | Ciba Sc Holding Ag | Amines a empechement sterique substituees sur l'azote par des groupes alcoxy comprenant des groupes hydroxy, et leurs applications comme stabilisants. |
NL1014414C2 (nl) * | 1999-02-25 | 2001-07-17 | Ciba Sc Holding Ag | Sterisch gehinderde aminen die zijn gesubstitueerd met hydroxylgroepen bevattende N-alkoxyresten. |
BE1013530A5 (fr) * | 1999-02-25 | 2002-03-05 | Ciba Sc Holding Ag | Composes stabilisants, compositions les contenant, leur preparation et leur utilisation. |
US6376584B1 (en) | 1999-02-25 | 2002-04-23 | Ciba Specialty Chemicals Corporation | Hydroxy-substituted N-alkoxy hindered amines and compositions stabilized therewith |
US6380389B2 (en) | 1999-02-25 | 2002-04-30 | Ciba Specialty Chemicals Corporation | Hydroxy-substituted N-alkoxy hindered amines and compositions stabilized therewith |
US6388072B2 (en) | 1999-02-25 | 2002-05-14 | Ciba Specialty Chemicals Corporation | Hydroxy-substituted N-alkoxy hindered amines and compositions stabilized therewith |
US6391949B2 (en) | 1999-02-25 | 2002-05-21 | Ciba Specialty Chemicals Corporation | Hydroxy-substituted N-alkoxy hindered amines and compositions stabilized therewith |
US6392041B1 (en) | 1999-02-25 | 2002-05-21 | Ciba Specialty Chemicals Corporation | Hydroxy-substituted N-alkoxy hindered amines and compositions stabilized therewith |
US6403681B2 (en) | 1999-02-25 | 2002-06-11 | Ciba Specialty Chemicals Corporation | Hydroxy-substituted N-alkoxy hindered amines and compositions stabilized therewith |
US6420463B1 (en) | 1999-02-25 | 2002-07-16 | Ciba Specialty Chemicals Corp. | Hydroxy-substituted N-alkoxy hindered amines and compositions stabilized therewith |
US6420562B2 (en) | 1999-02-25 | 2002-07-16 | Ciba Speciality Chemicals Corporation | Hydroxy-substituted N-alkoxy hindered amines and compositions stabilized therewith |
US6586507B2 (en) | 1999-02-25 | 2003-07-01 | Ciba Specialty Chemicals Corporation | Hydroxy-substituted N-alkoxy hindered amines and compositions stabilized therewith |
US6638997B2 (en) | 1999-02-25 | 2003-10-28 | Ciba Specialty Chemicals Corporation | Hydroxy-substituted N-alkoxy hindered amines and compositions stabilized therewith |
US6872832B2 (en) | 1999-02-25 | 2005-03-29 | Ciba Specialty Chemicals Corporation | Hydroxy substituted N-alkoxy hindered amines and compositions stabilized therewith |
Also Published As
Publication number | Publication date |
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KR20010071375A (ko) | 2001-07-28 |
EP1188742A4 (en) | 2003-01-15 |
ATE284862T1 (de) | 2005-01-15 |
AU4614200A (en) | 2001-01-09 |
DE60016745D1 (de) | 2005-01-20 |
DE60016745T2 (de) | 2005-12-08 |
EP1188742B1 (en) | 2004-12-15 |
EP1188742A1 (en) | 2002-03-20 |
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