DE1495656A1 - Verfahren zur Herstellung von Copolymerisaten - Google Patents
Verfahren zur Herstellung von CopolymerisatenInfo
- Publication number
- DE1495656A1 DE1495656A1 DE19611495656 DE1495656A DE1495656A1 DE 1495656 A1 DE1495656 A1 DE 1495656A1 DE 19611495656 DE19611495656 DE 19611495656 DE 1495656 A DE1495656 A DE 1495656A DE 1495656 A1 DE1495656 A1 DE 1495656A1
- Authority
- DE
- Germany
- Prior art keywords
- trioxane
- polymerization
- polymers
- polymer
- added
- 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- Withdrawn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 description 18
- 238000004519 manufacturing process Methods 0.000 title claims description 3
- 238000000034 method Methods 0.000 title description 23
- 229920000642 polymer Polymers 0.000 claims description 54
- 238000006116 polymerization reaction Methods 0.000 claims description 44
- 150000001875 compounds Chemical class 0.000 claims description 8
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 6
- 230000000379 polymerizing effect Effects 0.000 claims description 5
- 239000004215 Carbon black (E152) Substances 0.000 claims description 3
- 125000004432 carbon atom Chemical group C* 0.000 claims description 3
- 125000005842 heteroatom Chemical group 0.000 claims description 3
- 229930195733 hydrocarbon Natural products 0.000 claims description 3
- 239000011951 cationic catalyst Substances 0.000 claims description 2
- BGJSXRVXTHVRSN-UHFFFAOYSA-N 1,3,5-trioxane Chemical compound C1OCOCO1 BGJSXRVXTHVRSN-UHFFFAOYSA-N 0.000 claims 2
- 125000003827 glycol group Chemical group 0.000 claims 1
- 229920001515 polyalkylene glycol Polymers 0.000 claims 1
- KQBSGRWMSNFIPG-UHFFFAOYSA-N trioxane Chemical compound C1COOOC1 KQBSGRWMSNFIPG-UHFFFAOYSA-N 0.000 description 57
- 239000003054 catalyst Substances 0.000 description 17
- 239000007788 liquid Substances 0.000 description 16
- 239000000243 solution Substances 0.000 description 16
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 12
- 239000013078 crystal Substances 0.000 description 11
- 239000007787 solid Substances 0.000 description 10
- 238000007334 copolymerization reaction Methods 0.000 description 9
- -1 ethylene, propylene Chemical group 0.000 description 8
- 239000000047 product Substances 0.000 description 8
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 230000004580 weight loss Effects 0.000 description 6
- WNXJIVFYUVYPPR-UHFFFAOYSA-N 1,3-dioxolane Chemical compound C1COCO1 WNXJIVFYUVYPPR-UHFFFAOYSA-N 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 230000005764 inhibitory process Effects 0.000 description 5
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 4
- WTEOIRVLGSZEPR-UHFFFAOYSA-N boron trifluoride Chemical compound FB(F)F WTEOIRVLGSZEPR-UHFFFAOYSA-N 0.000 description 4
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 229920006324 polyoxymethylene Polymers 0.000 description 4
- WVDDGKGOMKODPV-UHFFFAOYSA-N Benzyl alcohol Chemical compound OCC1=CC=CC=C1 WVDDGKGOMKODPV-UHFFFAOYSA-N 0.000 description 3
- 239000002841 Lewis acid Substances 0.000 description 3
- 125000000217 alkyl group Chemical group 0.000 description 3
- 238000013459 approach Methods 0.000 description 3
- 239000012634 fragment Substances 0.000 description 3
- 230000007062 hydrolysis Effects 0.000 description 3
- 238000006460 hydrolysis reaction Methods 0.000 description 3
- 238000010348 incorporation Methods 0.000 description 3
- 150000007517 lewis acids Chemical class 0.000 description 3
- 239000000178 monomer Substances 0.000 description 3
- DURPTKYDGMDSBL-UHFFFAOYSA-N 1-butoxybutane Chemical compound CCCCOCCCC DURPTKYDGMDSBL-UHFFFAOYSA-N 0.000 description 2
- 229910015900 BF3 Inorganic materials 0.000 description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- 150000001241 acetals Chemical class 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 150000004292 cyclic ethers Chemical class 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 229920001451 polypropylene glycol Polymers 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 125000001424 substituent group Chemical group 0.000 description 2
- 238000007669 thermal treatment Methods 0.000 description 2
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical class O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical group C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 1
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical group CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 1
- ICMFHHGKLRTCBM-UHFFFAOYSA-N 4-nitrobenzenediazonium Chemical compound [O-][N+](=O)C1=CC=C([N+]#N)C=C1 ICMFHHGKLRTCBM-UHFFFAOYSA-N 0.000 description 1
- OSDWBNJEKMUWAV-UHFFFAOYSA-N Allyl chloride Chemical group ClCC=C OSDWBNJEKMUWAV-UHFFFAOYSA-N 0.000 description 1
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- 229930182556 Polyacetal Natural products 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 1
- 125000004036 acetal group Chemical group 0.000 description 1
- DHKHKXVYLBGOIT-UHFFFAOYSA-N acetaldehyde Diethyl Acetal Natural products CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 125000002947 alkylene group Chemical group 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000019445 benzyl alcohol Nutrition 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- CDQSJQSWAWPGKG-UHFFFAOYSA-N butane-1,1-diol Chemical compound CCCC(O)O CDQSJQSWAWPGKG-UHFFFAOYSA-N 0.000 description 1
- 150000001728 carbonyl compounds Chemical class 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000006482 condensation reaction Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- QGBSISYHAICWAH-UHFFFAOYSA-N dicyandiamide Chemical compound NC(N)=NC#N QGBSISYHAICWAH-UHFFFAOYSA-N 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000012760 heat stabilizer Substances 0.000 description 1
- 239000011346 highly viscous material Substances 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
- 239000004611 light stabiliser Substances 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical class OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 229920000151 polyglycol Polymers 0.000 description 1
- 239000010695 polyglycol Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 125000000383 tetramethylene group Chemical group [H]C([H])([*:1])C([H])([H])C([H])([H])C([H])([H])[*:2] 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 239000002562 thickening agent Substances 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
- C08G2/06—Catalysts
-
- 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
-
- 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
-
- 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
- C08G2/28—Post-polymerisation treatments
-
- 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
- C08G2/38—Block or graft polymers prepared by polymerisation of aldehydes or ketones on to macromolecular compounds
-
- 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
- C08G4/00—Condensation polymers of aldehydes or ketones with polyalcohols; Addition polymers of heterocyclic oxygen compounds containing in the ring at least once the grouping —O—C—O—
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 (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEF0035229 | 1961-10-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE1495656A1 true DE1495656A1 (de) | 1969-04-10 |
| DE1495656B2 DE1495656B2 (en, 2012) | 1970-06-11 |
Family
ID=7095915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19611495656 Withdrawn DE1495656A1 (de) | 1961-10-27 | 1961-10-27 | Verfahren zur Herstellung von Copolymerisaten |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US3256246A (en, 2012) |
| BE (1) | BE624203A (en, 2012) |
| CH (1) | CH432852A (en, 2012) |
| DE (1) | DE1495656A1 (en, 2012) |
| DK (1) | DK104908C (en, 2012) |
| FI (1) | FI40233B (en, 2012) |
| GB (1) | GB1010072A (en, 2012) |
| NL (1) | NL284715A (en, 2012) |
| SE (1) | SE312441B (en, 2012) |
Families Citing this family (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL281592A (en, 2012) * | 1959-08-29 | 1900-01-01 | ||
| BE635754A (en, 2012) * | 1962-08-03 | 1900-01-01 | ||
| NL298364A (en, 2012) * | 1962-09-27 | |||
| BE647354A (en, 2012) * | 1963-04-30 | |||
| US3346540A (en) * | 1963-06-20 | 1967-10-10 | Kurashiki Rayon Co | Process for the production of formaldehyde-cyclic formal copolymers |
| US3376361A (en) * | 1963-06-24 | 1968-04-02 | Celanese Corp | Formaldehyde block copolymers |
| DE1246245B (de) * | 1963-10-26 | 1967-08-03 | Bayer Ag | Verfahren zur Herstellung von Copolymerisaten des Trioxans |
| GB1067763A (en) * | 1964-01-02 | 1967-05-03 | Bakelite Xylonite Ltd | Novel copolymers |
| DE1248940B (de) * | 1964-02-11 | 1967-08-31 | Eastman Kodak Company Rochester, N Y (V St A) | Verfahren zur Herstellung von Copolymerisaten des Formaldehyds oder Trioxans |
| US3418283A (en) * | 1964-05-28 | 1968-12-24 | Ethyl Corp | Process for preparing polyoxymethylene interpolymers |
| US3442863A (en) * | 1964-06-10 | 1969-05-06 | Celanese Corp | Oxymethylene polymers containing units derived from chlorinated aromatic glycols and aldehydes |
| US3372146A (en) * | 1964-08-12 | 1968-03-05 | Tenneco Chem | Polyacetal terpolymers containing randomly recurring groups derived from a dicarbonal |
| US3384620A (en) * | 1964-08-28 | 1968-05-21 | Tenneco Chem | Polyacetal terpolymers containing randomly recurring groups derived from an aromatic acetal |
| US3415784A (en) * | 1964-08-24 | 1968-12-10 | Toyo Rayon Co Ltd | Trioxane-trioxaspiro compound copolymers and process for production thereof |
| US3405076A (en) * | 1964-11-27 | 1968-10-08 | Thiokol Chemical Corp | Boron-containing polymers and process for making the same |
| GB1132275A (en) * | 1965-04-07 | 1968-10-30 | Montedison Spa | Polyoxymethylenic copolymers |
| GB1132393A (en) * | 1965-04-07 | 1968-10-30 | Montedison Spa | Polyoxymethylenic copolymers |
| US3442864A (en) * | 1965-06-30 | 1969-05-06 | Diamond Alkali Co | Formals of norbornane-2,7-diols and copolymers thereof with trioxane |
| US3446775A (en) * | 1965-08-31 | 1969-05-27 | Thiokol Chemical Corp | Polymers containing gem-dithioether groups and process therefor |
| DE1301097B (de) * | 1965-11-06 | 1969-08-14 | Hoechst Ag | Verfahren zur Herstellung von Copolymerisaten des Trioxans |
| US3485799A (en) * | 1966-04-01 | 1969-12-23 | Freudenberg Carl | Oxymethylene polymer containing a modifying component |
| BE787735A (fr) * | 1971-08-18 | 1973-02-19 | Hoechst Ag | Matiere a mouler thermoplastique a base de polyoxymethylenes |
| BE795792A (fr) * | 1972-02-22 | 1973-08-22 | Hoechst Ag | Matieres a mouler thermoplastiques a base de poly-oxymethylenes |
| DE2505110A1 (de) * | 1975-02-07 | 1976-08-19 | Degussa | Verfahren zur herstellung von festen thermoplastischen terpolymerisaten des trioxans |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA582945A (en) * | 1959-09-08 | T. Cline Edward | Block copolymers of formaldehyde with active hydrogen-containing polymers | |
| US2394910A (en) * | 1941-05-06 | 1946-02-12 | Du Pont | Preparation of polydioxolane |
| US2844561A (en) * | 1953-06-30 | 1958-07-22 | Du Pont | Dispersion polymerization of formaldehyde in the presence of an organic synthetic polymer |
| US3027352A (en) * | 1958-02-28 | 1962-03-27 | Celanese Corp | Copolymers |
| AT218743B (de) * | 1959-06-09 | 1961-12-27 | Hoechst Ag | Verfahren zur Herstellung von Mischpolymerisaten cyclischer Acetale |
| NL127433C (en, 2012) * | 1959-07-03 | |||
| FR1263162A (fr) * | 1959-07-30 | 1961-06-05 | Hoechst Ag | Procédé pour déclencher une polymérisation ionique |
-
0
- BE BE624203D patent/BE624203A/xx unknown
- NL NL284715D patent/NL284715A/xx unknown
-
1961
- 1961-10-27 DE DE19611495656 patent/DE1495656A1/de not_active Withdrawn
-
1962
- 1962-10-23 US US232572A patent/US3256246A/en not_active Expired - Lifetime
- 1962-10-25 FI FI1929/62A patent/FI40233B/fi active
- 1962-10-25 CH CH1256862A patent/CH432852A/de unknown
- 1962-10-25 SE SE11468/62A patent/SE312441B/xx unknown
- 1962-10-26 DK DK463762AA patent/DK104908C/da active
- 1962-10-29 GB GB40853/62A patent/GB1010072A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US3256246A (en) | 1966-06-14 |
| DE1495656B2 (en, 2012) | 1970-06-11 |
| DK104908C (da) | 1966-07-18 |
| CH432852A (de) | 1967-03-31 |
| NL284715A (en, 2012) | |
| GB1010072A (en) | 1965-11-17 |
| BE624203A (en, 2012) | |
| SE312441B (en, 2012) | 1969-07-14 |
| FI40233B (en, 2012) | 1968-07-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| BHN | Withdrawal |