EP2268684A1 - Oxymethylen-copolymere und deren verwendung sowie verfahren zur herstellung von oxymethylen-copolymeren - Google Patents
Oxymethylen-copolymere und deren verwendung sowie verfahren zur herstellung von oxymethylen-copolymerenInfo
- Publication number
- EP2268684A1 EP2268684A1 EP09731583A EP09731583A EP2268684A1 EP 2268684 A1 EP2268684 A1 EP 2268684A1 EP 09731583 A EP09731583 A EP 09731583A EP 09731583 A EP09731583 A EP 09731583A EP 2268684 A1 EP2268684 A1 EP 2268684A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- end groups
- polymerization
- oxymethylene
- units
- proportion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 229920001577 copolymer Polymers 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims description 30
- 229920000642 polymer Polymers 0.000 claims abstract description 37
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims abstract description 33
- 239000000178 monomer Substances 0.000 claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000003999 initiator Substances 0.000 claims abstract description 21
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000003586 protic polar solvent Substances 0.000 claims abstract description 12
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 claims abstract description 8
- 235000019253 formic acid Nutrition 0.000 claims abstract description 8
- 150000001241 acetals Chemical class 0.000 claims abstract description 7
- DHKHKXVYLBGOIT-UHFFFAOYSA-N acetaldehyde Diethyl Acetal Natural products CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 claims abstract description 6
- 150000005215 alkyl ethers Chemical class 0.000 claims abstract description 6
- 239000007858 starting material Substances 0.000 claims abstract description 5
- 238000004519 manufacturing process Methods 0.000 claims abstract 2
- 238000006116 polymerization reaction Methods 0.000 claims description 29
- 125000005704 oxymethylene group Chemical group [H]C([H])([*:2])O[*:1] 0.000 claims description 20
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 18
- 125000004432 carbon atom Chemical group C* 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 16
- 125000005702 oxyalkylene group Chemical group 0.000 claims description 16
- 239000002253 acid Substances 0.000 claims description 15
- 230000009849 deactivation Effects 0.000 claims description 10
- 150000007513 acids Chemical class 0.000 claims description 9
- 229920002959 polymer blend Polymers 0.000 claims description 7
- 238000002360 preparation method Methods 0.000 claims description 7
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims description 6
- 150000007514 bases Chemical class 0.000 claims description 5
- 238000010538 cationic polymerization reaction Methods 0.000 claims description 5
- 125000002485 formyl group Chemical group [H]C(*)=O 0.000 claims description 5
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 5
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 4
- 125000000217 alkyl group Chemical group 0.000 claims description 4
- 150000002148 esters Chemical class 0.000 claims description 4
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 claims description 4
- BGJSXRVXTHVRSN-UHFFFAOYSA-N 1,3,5-trioxane Chemical compound C1OCOCO1 BGJSXRVXTHVRSN-UHFFFAOYSA-N 0.000 claims description 3
- IMROMDMJAWUWLK-UHFFFAOYSA-N Ethenol Chemical group OC=C IMROMDMJAWUWLK-UHFFFAOYSA-N 0.000 claims description 3
- 238000001556 precipitation Methods 0.000 claims description 3
- ITMCEJHCFYSIIV-UHFFFAOYSA-N triflic acid Chemical compound OS(=O)(=O)C(F)(F)F ITMCEJHCFYSIIV-UHFFFAOYSA-N 0.000 claims description 3
- 150000008064 anhydrides Chemical class 0.000 claims description 2
- NKDDWNXOKDWJAK-UHFFFAOYSA-N dimethoxymethane Chemical compound COCOC NKDDWNXOKDWJAK-UHFFFAOYSA-N 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims description 2
- 150000003512 tertiary amines Chemical class 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims 2
- LMBFAGIMSUYTBN-MPZNNTNKSA-N teixobactin Chemical compound C([C@H](C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CO)C(=O)N[C@H](CCC(N)=O)C(=O)N[C@H]([C@@H](C)CC)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CO)C(=O)N[C@H]1C(N[C@@H](C)C(=O)N[C@@H](C[C@@H]2NC(=N)NC2)C(=O)N[C@H](C(=O)O[C@H]1C)[C@@H](C)CC)=O)NC)C1=CC=CC=C1 LMBFAGIMSUYTBN-MPZNNTNKSA-N 0.000 claims 2
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical group COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 claims 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims 1
- 238000012674 dispersion polymerization Methods 0.000 claims 1
- 125000002091 cationic group Chemical group 0.000 abstract description 3
- 150000001875 compounds Chemical class 0.000 description 8
- 239000000654 additive Substances 0.000 description 5
- 239000002585 base Substances 0.000 description 4
- 239000006085 branching agent Substances 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 125000006353 oxyethylene group Chemical group 0.000 description 4
- 229920006324 polyoxymethylene Polymers 0.000 description 4
- -1 polyoxymethylenes Polymers 0.000 description 4
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- 238000007792 addition Methods 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 3
- 239000011541 reaction mixture Substances 0.000 description 3
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
- 150000002373 hemiacetals Chemical group 0.000 description 2
- 229920001519 homopolymer Polymers 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- WJKHJLXJJJATHN-UHFFFAOYSA-N triflic anhydride Chemical compound FC(F)(F)S(=O)(=O)OS(=O)(=O)C(F)(F)F WJKHJLXJJJATHN-UHFFFAOYSA-N 0.000 description 2
- 230000004580 weight loss Effects 0.000 description 2
- 239000004609 Impact Modifier Substances 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 1
- 239000006057 Non-nutritive feed additive Substances 0.000 description 1
- 239000012963 UV stabilizer Substances 0.000 description 1
- 238000002479 acid--base titration Methods 0.000 description 1
- 239000002318 adhesion promoter Substances 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910000318 alkali metal phosphate Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 125000005907 alkyl ester group Chemical group 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 150000004982 aromatic amines Chemical class 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000012668 chain scission Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- GYZLOYUZLJXAJU-UHFFFAOYSA-N diglycidyl ether Chemical class C1OC1COCC1CO1 GYZLOYUZLJXAJU-UHFFFAOYSA-N 0.000 description 1
- BNIILDVGGAEEIG-UHFFFAOYSA-L disodium hydrogen phosphate Chemical compound [Na+].[Na+].OP([O-])([O-])=O BNIILDVGGAEEIG-UHFFFAOYSA-L 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 150000002118 epoxides Chemical class 0.000 description 1
- 125000004185 ester group Chemical group 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012760 heat stabilizer Substances 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- 239000006082 mold release agent Substances 0.000 description 1
- 239000002667 nucleating agent Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000002685 polymerization catalyst Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000012673 precipitation polymerization Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
Classifications
-
- 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
- C08G2/00—Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances
- C08G2/18—Copolymerisation of aldehydes or ketones
- C08G2/24—Copolymerisation of aldehydes or ketones with acetals
-
- 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
- C08G2/00—Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances
- C08G2/04—Polymerisation by using compounds which act upon the molecular weight, e.g. chain-transferring agents
-
- 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
- C08G2/00—Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances
- C08G2/30—Chemical modification by after-treatment
- C08G2/34—Chemical modification by after-treatment by etherification
Definitions
- the present invention relates to novel oxymethylene copolymers having high thermal stability and hot water resistance and their use. Furthermore, the invention relates to a process for the preparation of oxymethylene copolymers.
- POM polyoxymethylenes
- cyclic oligomers of formaldehyde such as 1,3,5-trioxane (“trioxane”) or tetraoxocane are polymerized with the aid of cationic initiators.
- the polymerization can be carried out both in bulk as a precipitation polymerization and in the melt under pressure. After polymerization, the active chain ends are deactivated by addition of basic compounds.
- Impurities in the monomers also reduce the molecular weight during the polymerization. Therefore, purified monomers are used.
- the sum of the protic impurities such as water and formic acid is typically below 40 ppm.
- J P-A-04 / 114,003 and JP-A-04 / 145,114 describe the deactivation of the polymerization catalyst in oxymethylene polymer mixtures by adding mixtures of selected oxides and melting the mixture.
- ether-capped oxymethylene polymers While ester-terminated, capped oxymethylene polymers degrade at elevated temperatures or in basic environments, ether-capped oxymethylene polymers are characterized by very high stability. However, the processes proposed so far for the preparation of these polymers comprise a separate step for capping the polymers (cf., for example, US Pat. No. 3,161,616). However, these oxymethylene polymers do not contain oxyalkylene units having at least two carbon atoms which suffer from thermal and hydrolytic stability. In addition, oxymethylene polymers are known from EP-A-504,405, which in addition to oxymethylene units contain small amounts of oxyalkylene units having at least two carbon atoms, in particular on oxyethylene units, and which have a low content of formyl end groups.
- the proportion of oxyalkylene units is 0.07 to 0.5 mol%. Falling below the stated content of oxyethylene units produce polymers with insufficient heat resistance and hot water resistance. These polymers are prepared in the presence of a selected amount of a perfluoroalkyl sulfonic acid (derivative) as a catalyst, and low-water and low-acid monomers are used.
- the deactivation of the polymerization mixture is carried out by addition of selected crystalline basic adsorbents, for example of oxides or hydroxides of alkali or alkaline earth metals.
- the object of the present invention is to provide selected oxymethylene copolymers which are characterized by a very high thermal stability and stability against bases.
- Another object of the present invention is to provide a simple process for producing oxymethylene copolymers.
- Deactivation with basic compounds in a protic solvent can be prepared if proton acids are used in very small amounts as initiators and if starting products of low water content and low content of formic acid are used. Surprisingly, this produces polymers with high thermal
- the present invention relates to oxymethylene copolymers containing oxymethylene units and oxyalkylene units having at least two carbon atoms and a proportion of Alkyletherend phenomenon and Hydroxyalkylenend phenomenon having at least two carbon atoms, wherein the proportion of Alkyletherend phenomenon, based on all end groups, at least 80% and the proportion of Hydroxyalkylenend phenomenon with at least two carbon atoms, based on all end groups, up to 20%.
- Preferred oxymethylene copolymers contain a proportion of oxyalkylene units having at least two carbon atoms, based on the proportion of oxymethylene units, between 0.001 mol% and 0.05 mol%, very particularly preferably between 0.01 mol% and 0.05 mol%.
- the oxymethylene copolymers of the invention are further distinguished by no or a very low content of formyl end groups. This is typically between 0.01 to 2% of all end groups. Preference is given to oxymethylene copolymers having a content of formyl end groups of less than 1% of all end groups. Other customary end groups, for example hemiacetal end groups, may optionally still be present in very small amounts, for example in amounts of less than 1%.
- Typical oxymethylene copolymers of the present invention are polymers of general formula I.
- R 1 is a linear or branched alkyl group
- R 2 is a formyl group -CHO, with the proviso that the proportion of the alkyl ether end groups of the formula -OR 1 , based on all end groups, is at least 80%, and that Proportion of the hydroxyalkylene end groups of the formula -OC m H 2 m -OH, based on all
- y ar mean the arithmetic mean of all values y in the polymer mixture and x ar the arithmetic mean of all values x in the polymer mixture
- the mean value x ar is preferably between 50 and 5000.
- R 1 and R 2 are preferably C 1 -C 6 -alkyl radicals, which are preferably straight-chain.
- R 1 and R 2 are independently methyl or ethyl, especially methyl.
- the invention further relates to a process for the preparation of the oxymethylene polymers described above, which is characterized by: a) polymerization of at least one -CH 2 -O- units-forming monomer and at least one oxyalkylene units having at least two carbon atoms forming monomer in the presence of at least one acetal of formaldehyde with at least one protic acid or one of its derivatives as an initiator, wherein the concentration of the initiator is less than 10 " 4 mol%, based on the amount of forming at the beginning of the polymerization -CH 2 -O units forming monomers, b) use of starting materials of the polymerization, so that the content of water and formic acid at the beginning of the polymerization is less than or equal to 40 ppm , and c) deactivating the initiator and / or the active polymer chains by treating the prepared polymer with basic compounds in a protic solvent.
- the invention further relates to the obtainable by this process oxymethylene copolymers.
- step a) of the process according to the invention is a known polymerization of -CH 2 -O units-forming monomers having at least one oxyalkylene units having at least two carbon atoms forming monomer and optionally further comonomers and / or branching agents.
- the polymerization can be homogeneous or preferably heterogeneous.
- a -CH 2 -O- units forming monomer and a oxyalkylene units having at least two carbon atoms forming monomer or a mixture of different monomers with protonic acids as initiator of the cationic polymerization and with acetals of formaldehyde as a regulator in a conventional manner.
- the polymerization can be carried out without pressure or at moderate pressures up to 25 bar, for example at pressures between 1 and 10 bar.
- the polymerization temperature is preferably below the melting temperature of the resulting polymer.
- Typical polymerization temperatures range from 60 to 160 ° C., preferably from 70 to 140 ° C.
- the molecular weights, characterized as volume melt index MVR, of these polymers can be adjusted within wide ranges.
- Typical MVR values are from 0.1 to 100 g / 10 min, preferably 1 to 80 g / 10min measured according to EN ISO 1133 at 190 0 C under a load of 2.16 kg.
- branching agents can be used. Usually, the amount of branching agent is not more than 1% by weight based on the total amount of the monomer used for producing the oxymethylene polymers, preferably not more than 0.3% by weight.
- Preferred branching agents are polyfunctional epoxides, glycidyl ethers or cyclic formals.
- Preferred chain transfer agents are compounds of the formula II
- R 3 and R 4 independently of one another are linear or branched alkyl radicals, in particular C 1 -C 6 -alkyl radicals, which are preferably straight-chain.
- R 3 and R 4 are particularly preferably independently of one another methyl, ethyl, propyl or butyl, in particular methyl.
- the chain transfer agents are usually used in amounts of up to 20,000 ppm, preferably from 100 to 5,000 ppm, more preferably from 200 to 2,000 ppm, based on the monomer mixture.
- Particularly suitable initiators are strong protic acids, such as fluorinated or chlorinated alkyl and arylsulfonic acids, e.g. Trifluoromethanesulfonic acid or derivatives thereof, such as esters or anhydrides of protic acids, in particular trifluoromethanesulfonic anhydride or Trifluormethansulfon- acid esters, such as the alkyl esters, in question.
- protic acids such as fluorinated or chlorinated alkyl and arylsulfonic acids
- Trifluoromethanesulfonic acid or derivatives thereof such as esters or anhydrides of protic acids, in particular trifluoromethanesulfonic anhydride or Trifluormethansulfon- acid esters, such as the alkyl esters, in question.
- perchloric acid and its esters and protic acids in the presence of their salts.
- initiators are those compounds which start at concentrations of ⁇ 10 "4 mol% polymerization.
- the initiators are used in very small quantities. In the process according to the invention are initiators in an amount of less than or equal to 10 "4 mol%, preferably from 10 " 6 mol% to 10 ⁇ 4 mol%, based on the amount of present at the beginning of the polymerization -CH 2 -O units forming monomers , for use.
- purified starting materials are used in the polymerization, so that the content of water and formic acid during the polymerization is less than 100 ppm, preferably less than 40 ppm, based on the amount of -CH 2 -O units present at the start of the polymerization monomers.
- the measures for the purification of the starting materials are known to the person skilled in the art.
- the determination of the water and formic acid content in the monomers is carried out by the customary methods, ie water according to Karl Fischer and formic acid by acid-base titration.
- the solid or liquid polymerization mixture according to point c) is dissolved with a protic solvent containing at least one base. This deactivates the initiator and active polymer chains. This involves a thermal, controlled degradation of the unstable end groups.
- the solution is typically carried out at temperatures of 130 to 200 ° C, preferably from 140 to 190 0 C.
- the base it is possible to use all those compounds capable of terminating cationic polymerization, for example compounds which react basicly with water. Preference is given to bases which do not react with formaldehyde. Examples are tertiary amines, such as triethylamine, or secondary alkali metal phosphates, such as disodium hydrogen phosphate, or amides, such as dimethylformamide or dimethylacetamide, or aromatic amines, such as melamine.
- tertiary amines such as triethylamine
- secondary alkali metal phosphates such as disodium hydrogen phosphate
- amides such as dimethylformamide or dimethylacetamide
- aromatic amines such as melamine.
- Typical deactivation pressures range from 1 to 50 bar, preferably from 2 to 30 bar, in particular from 3 to 20 bar.
- the duration of the thermal treatment is 10 seconds to 2 hours, preferably 1 minute to 60 minutes, depending on the temperature.
- the treatment is preferably carried out with substantial exclusion of oxygen.
- a mixture containing water and methanol is preferably used.
- the water concentration is between 2% by weight and 50% by weight, preferably between 5% by weight and 30% by weight.
- the methanol concentration is between 50 and 90% by weight, preferably between 70% by weight and 90% by weight.
- the polymer thus obtained can be stabilized and modified by the known additives and then granulated.
- the compounds commonly used to stabilize and / or modify oxymethylene polymers can be used.
- the mixture of additives may contain processing aids, for example adhesion promoters, lubricants, nucleating agents, mold release agents, fillers, reinforcing materials or antistatic agents and additives which impart a desired property to the molding composition, such as dyes and / or pigments and / or impact modifiers and / or electrical conductivity imparting agents Additions; and mixtures of these additives, but without limiting the scope of the examples mentioned.
- processing aids for example adhesion promoters, lubricants, nucleating agents, mold release agents, fillers, reinforcing materials or antistatic agents and additives which impart a desired property to the molding composition, such as dyes and / or pigments and / or impact modifiers and / or electrical conductivity imparting agents Additions; and mixtures of these additives, but without limiting the scope of the examples mentioned.
- the oxymethylene copolymers obtained in this way are distinguished by good thermal stability, hot water resistance and low-temperature impact strength.
- Examples Min was a POM polymer having 86% -OCH 3 end groups, 13% hydroxyethylene end groups, 0.025 mol% of oxyethylene groups, based on the content of oxymethylene, and a melt index MVR of 2.5 ml / 10 for 8 weeks in 95 0 C stored hot water.
- the weight loss of the specimens was less than 1 wt.%. and the breaking strength remained unchanged at 70 MPa.
Landscapes
- 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)
- Polyoxymethylene Polymers And Polymers With Carbon-To-Carbon Bonds (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US4531608P | 2008-04-16 | 2008-04-16 | |
| DE102008018965A DE102008018965A1 (de) | 2008-04-16 | 2008-04-16 | Oxymethylen-Copolymere und deren Verwendung sowie Verfahren zur Herstellung von Oxymethylen-Copolymeren |
| PCT/EP2009/002712 WO2009127385A1 (de) | 2008-04-16 | 2009-04-14 | Oxymethylen-copolymere und deren verwendung sowie verfahren zur herstellung von oxymethylen-copolymeren |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2268684A1 true EP2268684A1 (de) | 2011-01-05 |
Family
ID=41078551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP09731583A Withdrawn EP2268684A1 (de) | 2008-04-16 | 2009-04-14 | Oxymethylen-copolymere und deren verwendung sowie verfahren zur herstellung von oxymethylen-copolymeren |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US8133966B2 (de) |
| EP (1) | EP2268684A1 (de) |
| JP (2) | JP5664868B2 (de) |
| CN (1) | CN102007155B (de) |
| DE (1) | DE102008018965A1 (de) |
| WO (1) | WO2009127385A1 (de) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7902324B2 (en) | 2006-09-26 | 2011-03-08 | Ticona Gmbh | Initiator |
| CN102079801A (zh) * | 2009-09-25 | 2011-06-01 | 提克纳有限公司 | 氧亚甲基聚合物及其制备方法 |
| WO2012092104A1 (en) * | 2010-12-30 | 2012-07-05 | Ticona Llc | Powder containing a polyoxymethylene polymer for coating metallic substrates |
| KR102467119B1 (ko) * | 2016-11-07 | 2022-11-14 | 미츠비시 가스 가가쿠 가부시키가이샤 | 옥시메틸렌 공중합체의 제조 방법 |
| EP3656796A1 (de) * | 2018-11-22 | 2020-05-27 | Covestro Deutschland AG | Verfahren zur herstellung von polyoxymethylen-polymeren mit mittlerer kettenlänge |
Family Cites Families (54)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL110821C (de) | 1957-09-06 | 1900-01-01 | ||
| DE1158709B (de) | 1959-02-18 | 1963-12-05 | Bayer Ag | Verfahren zur Herstellung von veresterten oder veraetherten Polyoxymethylenen |
| GB1009884A (en) | 1960-10-24 | 1965-11-17 | British Industrial Plastics | Improved polymeric products |
| US3269988A (en) | 1963-03-13 | 1966-08-30 | Grace W R & Co | Chemical process for polymerizing trioxane |
| US3393179A (en) | 1966-02-17 | 1968-07-16 | Du Pont | Preparation of polyoxymethylene ethers |
| DE2263300C3 (de) | 1972-12-23 | 1980-11-27 | Hoechst Ag, 6000 Frankfurt | Verfahren zur Herstellung von Copolymeren des Trioxans |
| US3998791A (en) | 1973-06-15 | 1976-12-21 | Societa' Italiana Resine S.I.R. S.P.A. | Process for the stabilization of polyacetal reins |
| IT1027886B (it) | 1974-12-20 | 1978-12-20 | Sir Soc Italiana Resine Spa | Procedimento per la preparazione di polimeri acetalici eterificati |
| IT1051892B (it) | 1975-12-23 | 1981-05-20 | Sir Soc Italiana Resine Spa | Procedimento per migliorare la stabilita degli omopolimeri acetalici eterificati |
| IT1051890B (it) | 1975-12-23 | 1981-05-20 | Sir Soc Italiana Resine Spa | Procedimento migliorato per la stabilizzazione di omopolimmeri acetalici eterificati e di copolimeri acetalici |
| DE2620017C3 (de) | 1976-05-06 | 1979-05-31 | Hoechst Ag, 6000 Frankfurt | Verfahren zur Herstellung von grobkörnigen Oxymethylenpolymeren |
| DE2735946C3 (de) | 1977-08-10 | 1980-03-06 | Hoechst Ag, 6000 Frankfurt | Körniges Oxymethylenpolymer mit verbesserten mechanischen Eigenschaften und Verfahren zu dessen Herstellung |
| DE2947490A1 (de) | 1979-11-24 | 1981-06-04 | Hoechst Ag, 6000 Frankfurt | Polyoxymethylenfibride und verfahren zu ihrer herstellung |
| JPH0235772B2 (ja) * | 1981-08-25 | 1990-08-13 | Asahi Chemical Ind | Horiokishimechirenkyojugobutsunoshitsukatsukahoho |
| DE3147309A1 (de) | 1981-11-28 | 1983-06-01 | Basf Ag, 6700 Ludwigshafen | Kontinuierliches verfahren zur herstellung von oxymethylenpolymeren |
| DE3241115A1 (de) | 1982-11-06 | 1984-05-10 | Basf Ag, 6700 Ludwigshafen | Verfahren zur herstellung von polyoxymethylenen aus formaldehyd |
| DE3303760A1 (de) | 1983-02-04 | 1984-08-09 | Hoechst Ag, 6230 Frankfurt | Schlagzaeh modifiziertes polyoxymethylen und daraus hergestellte formkoerper |
| JPS6060121A (ja) | 1983-09-12 | 1985-04-06 | Polyplastics Co | 改良されたポリアセタ−ル重合体の製造法 |
| DE3505524A1 (de) | 1984-03-28 | 1985-10-10 | Hoechst Ag, 6230 Frankfurt | Schlagzaeh modifiziertes polyoxymethylen und daraus hergestellte formkoerper |
| DE3703790A1 (de) * | 1987-02-07 | 1988-08-18 | Hoechst Ag | Kontinuierliches verfahren zur entfernung instabiler anteile aus rohem oxymethylencopolymerisat |
| CA2015903A1 (en) | 1989-05-12 | 1990-11-12 | Andrew B. Auerbach | Grafting of amine functional polymers onto functionalized oxymethylene polymers and the resulting graft polymers thereof |
| US5004798A (en) | 1989-05-12 | 1991-04-02 | Hoechst Celanese Corporation | Novel polyacetal copolymers of trioxane and trimethylolpropane formal derivatives |
| US4975519A (en) | 1989-05-12 | 1990-12-04 | Hoechst Celanese Corporation | Novel polyacetal terpolymers of trioxane and alpha, alpha- and alpha, beta-isomers of glycerol formal and functional derivatives thereof |
| US5043398A (en) | 1989-05-12 | 1991-08-27 | Hoechst Celanese Corporation | Grafting of functional compounds onto functional oxymethylene polymer backbones, with diisocyanate coupling agents, and the graft polymers thereof |
| US4975518A (en) | 1989-05-12 | 1990-12-04 | Hoechst Celanese Corporation | Novel polyacetal copolymers of trioxane and 1,2,6-hexanetriol formal derivatives |
| JPH0686509B2 (ja) * | 1990-01-17 | 1994-11-02 | 旭化成工業株式会社 | ポリオキシメチレンコポリマー |
| JP2733123B2 (ja) | 1990-03-28 | 1998-03-30 | ポリプラスチックス株式会社 | ポリアセタール樹脂組成物 |
| JPH04108819A (ja) * | 1990-08-30 | 1992-04-09 | Asahi Chem Ind Co Ltd | 分解性ポリオキシメチレンコポリマー |
| JPH0768321B2 (ja) | 1990-09-04 | 1995-07-26 | 旭化成工業株式会社 | 重合触媒の失活法 |
| CA2070431C (en) | 1990-10-05 | 1995-11-14 | Hirohisa Morishita | Polyoxymethylene copolymer and process for producing the copolymer |
| JPH0692476B2 (ja) | 1990-10-05 | 1994-11-16 | 旭化成工業株式会社 | 安定化ポリオキシメチレンの製造法 |
| JP3160678B2 (ja) * | 1990-10-05 | 2001-04-25 | 旭化成株式会社 | ポリオキシメチレン共重合体及びその製法 |
| JP3115913B2 (ja) | 1991-08-30 | 2000-12-11 | 旭化成工業株式会社 | アセタール重合体組成物の製造法 |
| JP2948014B2 (ja) * | 1992-03-06 | 1999-09-13 | ポリプラスチックス株式会社 | ポリオキシメチレン共重合体の製造方法 |
| JP3051797B2 (ja) * | 1992-04-24 | 2000-06-12 | ポリプラスチックス株式会社 | ポリオキシメチレン共重合体の製造方法 |
| WO1995022578A1 (en) * | 1994-02-21 | 1995-08-24 | Asahi Kasei Kogyo Kabushiki Kaisha | Oxymethylene copolymer resin composition |
| DE4409744C2 (de) | 1994-03-22 | 2000-12-21 | Basf Ag | Verfahren zur Aufarbeitung von rohem Polyoxymethylen |
| DE4436107A1 (de) | 1994-10-10 | 1996-04-11 | Hoechst Ag | Polyacetalformmasse, Verfahren zu ihrer Herstellung und ihre Verwendung |
| DE4443150C2 (de) | 1994-12-05 | 2000-02-24 | Hoechst Ag | Acetalcopolymere mit verbesserten mechanischen Eigenschaften |
| US5962623A (en) | 1998-09-08 | 1999-10-05 | Ticona Gmbh | Process for the preparation of polyacetal copolymers |
| JP4560260B2 (ja) | 1999-07-01 | 2010-10-13 | 旭化成ケミカルズ株式会社 | 低分子量オキシメチレン重合体及びその組成物 |
| JP4145114B2 (ja) | 2001-10-09 | 2008-09-03 | 松下電器産業株式会社 | フィルム剥離方法、フィルム剥離装置および表示装置パネルの製造方法 |
| JP2003147161A (ja) | 2001-11-14 | 2003-05-21 | Toray Ind Inc | ポリオキシメチレン樹脂組成物 |
| JP2004204051A (ja) | 2002-12-25 | 2004-07-22 | Mitsubishi Engineering Plastics Corp | コーナー部を有するポリアセタ−ル系樹脂成形品 |
| DE10302716A1 (de) | 2003-01-23 | 2004-08-05 | Basf Ag | Verfahren zur Herstellung von Polyoxymethylenen |
| DE10335959A1 (de) | 2003-08-04 | 2005-02-24 | Basf Ag | Alkohole als Cokatalysatoren bei der POM-Herstellung |
| DE102004054629A1 (de) | 2004-11-11 | 2006-05-18 | Basf Ag | Basische Desaktivatoren bei der POM-Herstellung |
| DE102004057867A1 (de) | 2004-11-30 | 2006-06-01 | Basf Ag | Verfahren zur Herstellung von Polyoxymethylenen |
| DE102005008598A1 (de) | 2005-02-23 | 2006-08-24 | Basf Ag | Verfahren zur Herstellung Formaldehyd-armer Polyoxymethylene |
| DE102005012480A1 (de) | 2005-03-16 | 2006-09-21 | Basf Ag | Verfahren zur Entfernung von Restmonomeren aus Polyoxymethylenen |
| DE102005016130A1 (de) | 2005-04-08 | 2006-10-12 | Ticona Gmbh | Polyoxymethylen-Zusammensetzungen, deren Herstellung und Verwendung |
| US7915350B2 (en) | 2005-04-15 | 2011-03-29 | Ticona Gmbh | Polyoxymethylene compositions, their preparation and use |
| DE102005062326A1 (de) * | 2005-12-24 | 2007-06-28 | Ticona Gmbh | Verfahren zur Herstellung von Oxymethylen-Polymeren, ausgewählte Polymere und deren Verwendung |
| DE102005062327A1 (de) | 2005-12-24 | 2007-06-28 | Ticona Gmbh | Verfahren zur Herstellung von Oxymethylen-Polymeren in homogener Phase und Verwendung |
-
2008
- 2008-04-16 DE DE102008018965A patent/DE102008018965A1/de not_active Withdrawn
-
2009
- 2009-04-14 CN CN200980113319.2A patent/CN102007155B/zh not_active Expired - Fee Related
- 2009-04-14 US US12/423,625 patent/US8133966B2/en not_active Expired - Fee Related
- 2009-04-14 JP JP2011504364A patent/JP5664868B2/ja not_active Expired - Fee Related
- 2009-04-14 EP EP09731583A patent/EP2268684A1/de not_active Withdrawn
- 2009-04-14 WO PCT/EP2009/002712 patent/WO2009127385A1/de not_active Ceased
-
2014
- 2014-10-06 JP JP2014205916A patent/JP2015028185A/ja active Pending
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2009127385A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| US20090270572A1 (en) | 2009-10-29 |
| DE102008018965A1 (de) | 2009-10-22 |
| CN102007155A (zh) | 2011-04-06 |
| WO2009127385A1 (de) | 2009-10-22 |
| JP5664868B2 (ja) | 2015-02-04 |
| JP2011516702A (ja) | 2011-05-26 |
| JP2015028185A (ja) | 2015-02-12 |
| US8133966B2 (en) | 2012-03-13 |
| CN102007155B (zh) | 2013-01-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0638599B1 (de) | Verfahren zur Herstellung von Polyacetalen | |
| DE10251332B4 (de) | Polyoxymethylen-Copolymere, deren Herstellung und Verwendung | |
| EP1861442B1 (de) | Verfahren zur herstellung von polyoxymethylenen | |
| DE102004057867A1 (de) | Verfahren zur Herstellung von Polyoxymethylenen | |
| EP2268684A1 (de) | Oxymethylen-copolymere und deren verwendung sowie verfahren zur herstellung von oxymethylen-copolymeren | |
| DE69900579T2 (de) | Verfahren zur Herstellung von Polyacetalcopolymeren | |
| EP2265652A1 (de) | Oxymethylenpolymere, verfahren zu deren herstellung und deren verwendung | |
| EP1913045B1 (de) | Verfahren zur herstellung von polyoxymethylenen | |
| EP1969024B1 (de) | Verfahren zur herstellung von oxymethylen-polymeren | |
| DE2408481A1 (de) | Verfahren zur herstellung eines stabilisierten oxymethylencopolymeren | |
| DE2141600A1 (de) | Verfahren zur herstellung von homound copolymerisaten des trioxans | |
| DE4233308A1 (de) | Polyacetal-Formmassen mit hoher Schlagzähigkeit, Verfahren zu ihrer Herstellung und ihre Verwendung | |
| EP1812486B1 (de) | Basische desaktivatoren bei der pom-herstellung | |
| EP2431397A1 (de) | Verfahren zur Herstellung von Oxymethylen-Polymeren in homogener Phase und Verwendung | |
| EP2066704A1 (de) | Initiator | |
| DE112005002482T5 (de) | Polyoxymethylenharzzusammensetzung mit ausgezeichneter Wärmestabilität | |
| DE2141327C3 (de) | Thermoplastische Formmasse auf Poly(oxymethylen)-Basis | |
| DE102008018966A1 (de) | Verfahren zur Herstellung von Oxymethylen-Polymeren und dafür geeignete Vorrichtung | |
| EP2066710B1 (de) | Ionische flüssigkeiten bei der pom-herstellung | |
| DE102004052380B4 (de) | Verfahren zur Herstellung von Polyacetalen | |
| DE3241115A1 (de) | Verfahren zur herstellung von polyoxymethylenen aus formaldehyd | |
| DE2549770C2 (de) | Verfahren zur herstellung von oxymethylenpolymeren in koerniger form | |
| DE1301096B (de) | Verfahren zur Herstellung von Copolymerisaten des Trioxans | |
| DE1669797A1 (de) | Verfahren zur Stabilisierung von makromolekularen Polyacetalen | |
| DE102005054877A1 (de) | Verfahren zur Herstellung eines Polyoxymethylenhomo- oder -Copolymer-Endproduktes |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20101026 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR |
|
| AX | Request for extension of the european patent |
Extension state: AL BA RS |
|
| 17Q | First examination report despatched |
Effective date: 20110317 |
|
| RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: GRONNER, ROBERT Inventor name: YEARWOOD, MICHAEL, G. Inventor name: LINGNAU, JUERGEN Inventor name: HOFFMOCKEL, MICHAEL Inventor name: HAUBS, MICHAEL |
|
| DAX | Request for extension of the european patent (deleted) | ||
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20150617 |