CA1113641A - Process for the preparation of oxymethylene polymers - Google Patents
Process for the preparation of oxymethylene polymersInfo
- Publication number
- CA1113641A CA1113641A CA260,319A CA260319A CA1113641A CA 1113641 A CA1113641 A CA 1113641A CA 260319 A CA260319 A CA 260319A CA 1113641 A CA1113641 A CA 1113641A
- Authority
- CA
- Canada
- Prior art keywords
- initiator
- trioxane
- carbonic acid
- acid ester
- cyclic
- 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.)
- Expired
Links
- -1 cyclic carbonic acid ester Chemical class 0.000 claims abstract description 31
- 239000003999 initiator Substances 0.000 claims abstract description 16
- BGJSXRVXTHVRSN-UHFFFAOYSA-N 1,3,5-trioxane Chemical compound C1OCOCO1 BGJSXRVXTHVRSN-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000006116 polymerization reaction Methods 0.000 claims abstract description 7
- 150000003839 salts Chemical class 0.000 claims abstract description 6
- 239000002841 Lewis acid Substances 0.000 claims abstract description 4
- 150000007517 lewis acids Chemical class 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 9
- DHKHKXVYLBGOIT-UHFFFAOYSA-N acetaldehyde Diethyl Acetal Natural products CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 claims description 8
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 7
- 125000004122 cyclic group Chemical group 0.000 claims description 6
- 150000004651 carbonic acid esters Chemical class 0.000 claims description 5
- CIUQDSCDWFSTQR-UHFFFAOYSA-N [C]1=CC=CC=C1 Chemical compound [C]1=CC=CC=C1 CIUQDSCDWFSTQR-UHFFFAOYSA-N 0.000 claims description 3
- 229920006324 polyoxymethylene Polymers 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- 238000004220 aggregation Methods 0.000 claims 1
- 230000002776 aggregation Effects 0.000 claims 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 claims 1
- 229920001577 copolymer Polymers 0.000 claims 1
- 229920001519 homopolymer Polymers 0.000 claims 1
- 229920000642 polymer Polymers 0.000 abstract description 17
- 125000005704 oxymethylene group Chemical group [H]C([H])([*:2])O[*:1] 0.000 abstract description 10
- 239000002253 acid Substances 0.000 abstract description 6
- 150000001875 compounds Chemical class 0.000 abstract description 5
- 229920001169 thermoplastic Polymers 0.000 abstract description 2
- 239000004416 thermosoftening plastic Substances 0.000 abstract description 2
- 239000007791 liquid phase Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 15
- 239000000243 solution Substances 0.000 description 10
- 125000004432 carbon atom Chemical group C* 0.000 description 9
- 238000002844 melting Methods 0.000 description 5
- 230000008018 melting Effects 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 4
- WNXJIVFYUVYPPR-UHFFFAOYSA-N 1,3-dioxolane Chemical compound C1COCO1 WNXJIVFYUVYPPR-UHFFFAOYSA-N 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- 150000001241 acetals Chemical class 0.000 description 3
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 3
- 150000002148 esters Chemical class 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- KWOLFJPFCHCOCG-UHFFFAOYSA-N Acetophenone Chemical compound CC(=O)C1=CC=CC=C1 KWOLFJPFCHCOCG-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-N acetic acid Substances CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 125000001931 aliphatic group Chemical group 0.000 description 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical compound C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 description 2
- 230000007717 exclusion Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 229940095574 propionic acid Drugs 0.000 description 2
- 239000012265 solid product Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000007669 thermal treatment Methods 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- QBYIENPQHBMVBV-HFEGYEGKSA-N (2R)-2-hydroxy-2-phenylacetic acid Chemical compound O[C@@H](C(O)=O)c1ccccc1.O[C@@H](C(O)=O)c1ccccc1 QBYIENPQHBMVBV-HFEGYEGKSA-N 0.000 description 1
- RUOJZAUFBMNUDX-VKHMYHEASA-N (4s)-4-methyl-1,3-dioxolan-2-one Chemical compound C[C@H]1COC(=O)O1 RUOJZAUFBMNUDX-VKHMYHEASA-N 0.000 description 1
- JYEUMXHLPRZUAT-UHFFFAOYSA-N 1,2,3-triazine Chemical compound C1=CN=NN=C1 JYEUMXHLPRZUAT-UHFFFAOYSA-N 0.000 description 1
- CXCSZVYZVSDARW-UHFFFAOYSA-N 1,2-dicyanoguanidine Chemical compound N#CNC(N)=NC#N CXCSZVYZVSDARW-UHFFFAOYSA-N 0.000 description 1
- AUAGGMPIKOZAJZ-UHFFFAOYSA-N 1,3,6-trioxocane Chemical compound C1COCOCCO1 AUAGGMPIKOZAJZ-UHFFFAOYSA-N 0.000 description 1
- CZLMRJZAHXYRIX-UHFFFAOYSA-N 1,3-dioxepane Chemical compound C1CCOCOC1 CZLMRJZAHXYRIX-UHFFFAOYSA-N 0.000 description 1
- BQLZNUMAQHULJO-UHFFFAOYSA-N 1,3-dioxonane Chemical compound C1CCCOCOCC1 BQLZNUMAQHULJO-UHFFFAOYSA-N 0.000 description 1
- HOMDJHGZAAKUQV-UHFFFAOYSA-N 1-(propoxymethoxy)propane Chemical compound CCCOCOCCC HOMDJHGZAAKUQV-UHFFFAOYSA-N 0.000 description 1
- IKKZUUMAGYBBFE-UHFFFAOYSA-N 1-cyano-2-ethylguanidine Chemical compound CCNC(N)=NC#N IKKZUUMAGYBBFE-UHFFFAOYSA-N 0.000 description 1
- SIQWQBQGWREFSE-UHFFFAOYSA-N 1-cyano-2-methylguanidine Chemical compound CNC(N)=NC#N SIQWQBQGWREFSE-UHFFFAOYSA-N 0.000 description 1
- SRUGWSFEPMKUAK-UHFFFAOYSA-N 1-cyano-2-propan-2-ylguanidine Chemical compound CC(C)NC(N)=NC#N SRUGWSFEPMKUAK-UHFFFAOYSA-N 0.000 description 1
- NGKJPYUHFKVHOJ-UHFFFAOYSA-N 2-tert-butyl-1-cyanoguanidine Chemical compound CC(C)(C)NC(N)=NC#N NGKJPYUHFKVHOJ-UHFFFAOYSA-N 0.000 description 1
- FQCPSQATHSZOJB-UHFFFAOYSA-N 3-hydroxybutan-2-yl hydrogen carbonate Chemical compound CC(O)C(C)OC(O)=O FQCPSQATHSZOJB-UHFFFAOYSA-N 0.000 description 1
- PUEFXLJYTSRTGI-UHFFFAOYSA-N 4,4-dimethyl-1,3-dioxolan-2-one Chemical compound CC1(C)COC(=O)O1 PUEFXLJYTSRTGI-UHFFFAOYSA-N 0.000 description 1
- SBUOHGKIOVRDKY-UHFFFAOYSA-N 4-methyl-1,3-dioxolane Chemical compound CC1COCO1 SBUOHGKIOVRDKY-UHFFFAOYSA-N 0.000 description 1
- ZKOGUIGAVNCCKH-UHFFFAOYSA-N 4-phenyl-1,3-dioxolan-2-one Chemical compound O1C(=O)OCC1C1=CC=CC=C1 ZKOGUIGAVNCCKH-UHFFFAOYSA-N 0.000 description 1
- OVKDCYKVNYLEHK-UHFFFAOYSA-N 4-phenyl-1,3-dioxolane Chemical compound O1COCC1C1=CC=CC=C1 OVKDCYKVNYLEHK-UHFFFAOYSA-N 0.000 description 1
- 101150034533 ATIC gene Proteins 0.000 description 1
- 229930185605 Bisphenol Natural products 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- CHJJGSNFBQVOTG-UHFFFAOYSA-N N-methyl-guanidine Natural products CNC(N)=N CHJJGSNFBQVOTG-UHFFFAOYSA-N 0.000 description 1
- 241000183024 Populus tremula Species 0.000 description 1
- IWYDHOAUDWTVEP-UHFFFAOYSA-N R-2-phenyl-2-hydroxyacetic acid Natural products OC(=O)C(O)C1=CC=CC=C1 IWYDHOAUDWTVEP-UHFFFAOYSA-N 0.000 description 1
- MKUXAQIIEYXACX-UHFFFAOYSA-N aciclovir Chemical compound N1C(N)=NC(=O)C2=C1N(COCCO)C=N2 MKUXAQIIEYXACX-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 125000003158 alcohol group Chemical group 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 229910000318 alkali metal phosphate Inorganic materials 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- ZRALSGWEFCBTJO-UHFFFAOYSA-N anhydrous guanidine Natural products NC(N)=N ZRALSGWEFCBTJO-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 125000005615 azonium group Chemical group 0.000 description 1
- 150000008366 benzophenones Chemical class 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- BMRWNKZVCUKKSR-UHFFFAOYSA-N butane-1,2-diol Chemical compound CCC(O)CO BMRWNKZVCUKKSR-UHFFFAOYSA-N 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- WOYOQLVBGYGWQY-UHFFFAOYSA-N carbonic acid;1-phenylethane-1,2-diol Chemical compound OC(O)=O.OCC(O)C1=CC=CC=C1 WOYOQLVBGYGWQY-UHFFFAOYSA-N 0.000 description 1
- NPAXBRSUVYCZGM-UHFFFAOYSA-N carbonic acid;propane-1,2-diol Chemical compound OC(O)=O.CC(O)CO NPAXBRSUVYCZGM-UHFFFAOYSA-N 0.000 description 1
- 125000005626 carbonium group Chemical group 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 229960004106 citric acid Drugs 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 125000004093 cyano group Chemical group *C#N 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000012954 diazonium Substances 0.000 description 1
- 150000001989 diazonium salts Chemical class 0.000 description 1
- QGBSISYHAICWAH-UHFFFAOYSA-N dicyandiamide Chemical compound NC(N)=NC#N QGBSISYHAICWAH-UHFFFAOYSA-N 0.000 description 1
- NKDDWNXOKDWJAK-UHFFFAOYSA-N dimethoxymethane Chemical compound COCOC NKDDWNXOKDWJAK-UHFFFAOYSA-N 0.000 description 1
- SWSQBOPZIKWTGO-UHFFFAOYSA-N dimethylaminoamidine Natural products CN(C)C(N)=N SWSQBOPZIKWTGO-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
- 238000004821 distillation Methods 0.000 description 1
- 239000012065 filter cake Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 229960004198 guanidine Drugs 0.000 description 1
- 150000002357 guanidines Chemical class 0.000 description 1
- MBAKFIZHTUAVJN-UHFFFAOYSA-I hexafluoroantimony(1-);hydron Chemical compound F.F[Sb](F)(F)(F)F MBAKFIZHTUAVJN-UHFFFAOYSA-I 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000005457 ice water Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000004310 lactic acid Substances 0.000 description 1
- 235000014655 lactic acid Nutrition 0.000 description 1
- 229960000448 lactic acid Drugs 0.000 description 1
- 239000004611 light stabiliser Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229960002510 mandelic acid Drugs 0.000 description 1
- 238000002074 melt spinning Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 229910052756 noble gas Inorganic materials 0.000 description 1
- 150000002835 noble gases Chemical class 0.000 description 1
- 235000014571 nuts Nutrition 0.000 description 1
- 150000004029 oxacyclic compounds Chemical class 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-O oxonium Chemical compound [OH3+] XLYOFNOQVPJJNP-UHFFFAOYSA-O 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003196 poly(1,3-dioxolane) Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 1
- 235000019260 propionic acid Nutrition 0.000 description 1
- 229960004063 propylene glycol Drugs 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 1
- 239000012763 reinforcing filler Substances 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- WBHHMMIMDMUBKC-XLNAKTSKSA-N ricinelaidic acid Chemical compound CCCCCC[C@@H](O)C\C=C\CCCCCCCC(O)=O WBHHMMIMDMUBKC-XLNAKTSKSA-N 0.000 description 1
- 229960003656 ricinoleic acid Drugs 0.000 description 1
- FEUQNCSVHBHROZ-UHFFFAOYSA-N ricinoleic acid Natural products CCCCCCC(O[Si](C)(C)C)CC=CCCCCCCCC(=O)OC FEUQNCSVHBHROZ-UHFFFAOYSA-N 0.000 description 1
- IOVGROKTTNBUGK-SJCJKPOMSA-N ritodrine Chemical compound N([C@@H](C)[C@H](O)C=1C=CC(O)=CC=1)CCC1=CC=C(O)C=C1 IOVGROKTTNBUGK-SJCJKPOMSA-N 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000003510 tertiary aliphatic amines Chemical class 0.000 description 1
- 229940086542 triethylamine Drugs 0.000 description 1
- QDNCLIPKBNMUPP-UHFFFAOYSA-N trimethyloxidanium Chemical compound C[O+](C)C QDNCLIPKBNMUPP-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
-
- 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
- C08G2/10—Polymerisation of cyclic oligomers of formaldehyde
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyoxymethylene Polymers And Polymers With Carbon-To-Carbon Bonds (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP2538954.2 | 1975-09-02 | ||
| DE19752538954 DE2538954A1 (de) | 1975-09-02 | 1975-09-02 | Verfahren zur herstellung von oxymethylenpolymeren |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1113641A true CA1113641A (en) | 1981-12-01 |
Family
ID=5955389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA260,319A Expired CA1113641A (en) | 1975-09-02 | 1976-09-01 | Process for the preparation of oxymethylene polymers |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US4082729A (OSRAM) |
| JP (1) | JPS5229889A (OSRAM) |
| BE (1) | BE845781A (OSRAM) |
| CA (1) | CA1113641A (OSRAM) |
| DE (1) | DE2538954A1 (OSRAM) |
| DK (1) | DK395176A (OSRAM) |
| FR (1) | FR2322887A1 (OSRAM) |
| GB (1) | GB1534592A (OSRAM) |
| IE (1) | IE43421B1 (OSRAM) |
| IT (1) | IT1065213B (OSRAM) |
| LU (1) | LU75693A1 (OSRAM) |
| NL (1) | NL7609561A (OSRAM) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3151814A1 (de) * | 1981-12-29 | 1983-07-07 | Hoechst Ag, 6230 Frankfurt | "fuellstoff enthaltende kunststoff-formmasse, verfahren zu ihrer herstellung sowie deren verwendung" |
| JPS59129664A (ja) * | 1983-01-18 | 1984-07-26 | Fujikoshi Kikai Kogyo Kk | 自動定寸装置付ラツプ盤 |
| JPS6213318A (ja) * | 1985-07-11 | 1987-01-22 | Asahi Chem Ind Co Ltd | ２軸延伸ポリオキシメチレンフイルムの製造方法 |
| CN1144824C (zh) * | 1999-07-01 | 2004-04-07 | 旭化成株式会社 | 低分子量甲醛聚合物和含有它的组合物 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE618213A (OSRAM) * | 1959-07-30 | |||
| DE1134833B (de) * | 1959-08-07 | 1962-08-16 | Hoechst Ag | Verfahren zur katalytischen Polymerisation von 1, 3, 6-Trioxa-cycloalkanen |
| NL7016775A (en) * | 1970-11-16 | 1972-05-18 | Trioxane copolymers prepared in the pres- - ence of alkylene carbonates |
-
1975
- 1975-09-02 DE DE19752538954 patent/DE2538954A1/de not_active Withdrawn
-
1976
- 1976-08-27 NL NL7609561A patent/NL7609561A/xx not_active Application Discontinuation
- 1976-08-31 JP JP51103272A patent/JPS5229889A/ja active Pending
- 1976-08-31 LU LU75693A patent/LU75693A1/xx unknown
- 1976-08-31 IT IT26720/76A patent/IT1065213B/it active
- 1976-08-31 US US05/719,078 patent/US4082729A/en not_active Expired - Lifetime
- 1976-09-01 IE IE1946/76A patent/IE43421B1/en unknown
- 1976-09-01 CA CA260,319A patent/CA1113641A/en not_active Expired
- 1976-09-01 DK DK395176A patent/DK395176A/da not_active Application Discontinuation
- 1976-09-02 FR FR7626481A patent/FR2322887A1/fr active Granted
- 1976-09-02 BE BE170295A patent/BE845781A/xx not_active IP Right Cessation
- 1976-09-02 GB GB36406/76A patent/GB1534592A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB1534592A (en) | 1978-12-06 |
| LU75693A1 (OSRAM) | 1977-04-27 |
| FR2322887A1 (fr) | 1977-04-01 |
| DE2538954A1 (de) | 1977-03-10 |
| NL7609561A (nl) | 1977-03-04 |
| US4082729A (en) | 1978-04-04 |
| IT1065213B (it) | 1985-02-25 |
| JPS5229889A (en) | 1977-03-07 |
| BE845781A (fr) | 1977-03-02 |
| IE43421B1 (en) | 1981-02-25 |
| FR2322887B1 (OSRAM) | 1982-03-12 |
| DK395176A (da) | 1977-03-03 |
| IE43421L (en) | 1977-03-02 |
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