DE2135382A1 - Terephthaldehydacetale - Google Patents
TerephthaldehydacetaleInfo
- Publication number
- DE2135382A1 DE2135382A1 DE19712135382 DE2135382A DE2135382A1 DE 2135382 A1 DE2135382 A1 DE 2135382A1 DE 19712135382 DE19712135382 DE 19712135382 DE 2135382 A DE2135382 A DE 2135382A DE 2135382 A1 DE2135382 A1 DE 2135382A1
- Authority
- DE
- Germany
- Prior art keywords
- integer
- product
- acid
- methylol
- terephthaldehyde
- 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.)
- Pending
Links
- -1 Terephthaldehyde acetals Chemical class 0.000 title description 11
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical group OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 25
- 239000002253 acid Substances 0.000 claims description 12
- KUCOHFSKRZZVRO-UHFFFAOYSA-N terephthalaldehyde Chemical compound O=CC1=CC=C(C=O)C=C1 KUCOHFSKRZZVRO-UHFFFAOYSA-N 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 9
- 229910052739 hydrogen Inorganic materials 0.000 claims description 8
- 239000001257 hydrogen Substances 0.000 claims description 8
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 8
- 229920005862 polyol Polymers 0.000 claims description 7
- 150000003077 polyols Chemical class 0.000 claims description 6
- 239000012429 reaction media Substances 0.000 claims description 6
- 150000001299 aldehydes Chemical class 0.000 claims 1
- 239000000047 product Substances 0.000 description 32
- 239000000203 mixture Substances 0.000 description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 17
- 238000006243 chemical reaction Methods 0.000 description 13
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 description 12
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 12
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 11
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 10
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 8
- 239000000376 reactant Substances 0.000 description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 7
- 229920005989 resin Polymers 0.000 description 7
- 239000011347 resin Substances 0.000 description 7
- 238000003756 stirring Methods 0.000 description 7
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 6
- 150000007519 polyprotic acids Polymers 0.000 description 6
- 239000011541 reaction mixture Substances 0.000 description 6
- 150000005846 sugar alcohols Polymers 0.000 description 6
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000012264 purified product Substances 0.000 description 5
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 5
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 229920000180 alkyd Polymers 0.000 description 4
- 150000008064 anhydrides Chemical class 0.000 description 4
- 239000012043 crude product Substances 0.000 description 4
- 239000008367 deionised water Substances 0.000 description 4
- 229910021641 deionized water Inorganic materials 0.000 description 4
- 235000011187 glycerol Nutrition 0.000 description 4
- 238000002329 infrared spectrum Methods 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 239000002244 precipitate Substances 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 230000001588 bifunctional effect Effects 0.000 description 3
- 238000009835 boiling Methods 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- 238000010992 reflux Methods 0.000 description 3
- 238000007127 saponification reaction Methods 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 229920001187 thermosetting polymer Polymers 0.000 description 3
- FALRKNHUBBKYCC-UHFFFAOYSA-N 2-(chloromethyl)pyridine-3-carbonitrile Chemical compound ClCC1=NC=CC=C1C#N FALRKNHUBBKYCC-UHFFFAOYSA-N 0.000 description 2
- LNYYKKTXWBNIOO-UHFFFAOYSA-N 3-oxabicyclo[3.3.1]nona-1(9),5,7-triene-2,4-dione Chemical compound C1=CC(C(=O)OC2=O)=CC2=C1 LNYYKKTXWBNIOO-UHFFFAOYSA-N 0.000 description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- LGRFSURHDFAFJT-UHFFFAOYSA-N Phthalic anhydride Natural products C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 description 2
- 150000001241 acetals Chemical class 0.000 description 2
- 239000003377 acid catalyst Substances 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical compound CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- JXTHNDFMNIQAHM-UHFFFAOYSA-N dichloroacetic acid Chemical compound OC(=O)C(Cl)Cl JXTHNDFMNIQAHM-UHFFFAOYSA-N 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- ANSXAPJVJOKRDJ-UHFFFAOYSA-N furo[3,4-f][2]benzofuran-1,3,5,7-tetrone Chemical compound C1=C2C(=O)OC(=O)C2=CC2=C1C(=O)OC2=O ANSXAPJVJOKRDJ-UHFFFAOYSA-N 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- KJIFKLIQANRMOU-UHFFFAOYSA-N oxidanium;4-methylbenzenesulfonate Chemical compound O.CC1=CC=C(S(O)(=O)=O)C=C1 KJIFKLIQANRMOU-UHFFFAOYSA-N 0.000 description 2
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 2
- 238000001953 recrystallisation Methods 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 229940014800 succinic anhydride Drugs 0.000 description 2
- BMRWNKZVCUKKSR-SCSAIBSYSA-N (R)-butane-1,2-diol Chemical compound CC[C@@H](O)CO BMRWNKZVCUKKSR-SCSAIBSYSA-N 0.000 description 1
- 241000209761 Avena Species 0.000 description 1
- 235000007319 Avena orientalis Nutrition 0.000 description 1
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 1
- DHKHKXVYLBGOIT-UHFFFAOYSA-N acetaldehyde Diethyl Acetal Natural products CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 description 1
- 230000000397 acetylating effect Effects 0.000 description 1
- 230000021736 acetylation Effects 0.000 description 1
- 238000006640 acetylation reaction Methods 0.000 description 1
- 150000008065 acid anhydrides Chemical class 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 229960005215 dichloroacetic acid Drugs 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 239000005457 ice water Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- GBMDVOWEEQVZKZ-UHFFFAOYSA-N methanol;hydrate Chemical compound O.OC GBMDVOWEEQVZKZ-UHFFFAOYSA-N 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- XNGIFLGASWRNHJ-UHFFFAOYSA-N o-dicarboxybenzene Natural products OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000012265 solid product Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D317/00—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms
- C07D317/08—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3
- C07D317/10—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 not condensed with other rings
- C07D317/14—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 not condensed with other rings with substituted hydrocarbon radicals attached to ring carbon atoms
- C07D317/18—Radicals substituted by singly bound oxygen or sulfur atoms
- C07D317/20—Free hydroxyl or mercaptan
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D319/00—Heterocyclic compounds containing six-membered rings having two oxygen atoms as the only ring hetero atoms
- C07D319/04—1,3-Dioxanes; Hydrogenated 1,3-dioxanes
- C07D319/06—1,3-Dioxanes; Hydrogenated 1,3-dioxanes not condensed with other rings
-
- 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
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/66—Polyesters containing oxygen in the form of ether groups
- C08G63/668—Polyesters containing oxygen in the form of ether groups derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/672—Dicarboxylic acids and dihydroxy compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US5559170A | 1970-07-16 | 1970-07-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2135382A1 true DE2135382A1 (de) | 1972-01-20 |
Family
ID=21998880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19712135382 Pending DE2135382A1 (de) | 1970-07-16 | 1971-07-12 | Terephthaldehydacetale |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3708502A (enExample) |
| BE (1) | BE770104A (enExample) |
| CA (1) | CA953728A (enExample) |
| DE (1) | DE2135382A1 (enExample) |
| FR (1) | FR2101834A5 (enExample) |
| GB (1) | GB1332073A (enExample) |
| NL (1) | NL7109685A (enExample) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0297030A3 (en) * | 1987-05-27 | 1989-07-26 | Ciba-Geigy Ag | Polycycloacetals containing epoxy groups |
| CN116829618A (zh) * | 2021-01-27 | 2023-09-29 | 三菱瓦斯化学株式会社 | 热塑性树脂及含有该热塑性树脂的光学透镜 |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4705872A (en) * | 1982-09-30 | 1987-11-10 | The Dow Chemical Company | Cyclic acetal-alcohols |
| SE511056C2 (sv) * | 1997-03-03 | 1999-07-26 | Wedevaag Faerg Ab | Tvärbindare för filmbildande formulering |
| SE522547C2 (sv) * | 1997-03-03 | 2004-02-17 | Wedevaag Faerg Ab | Organisk filmbildande formulering |
| DE19711303A1 (de) * | 1997-03-18 | 1998-09-24 | Huels Chemische Werke Ag | Amphiphile Polymere auf Basis von Polyestern mit einkondensierten acetalischen Gruppen in Wasch- und Reinigungsmitteln |
| WO2011086583A2 (en) * | 2010-01-15 | 2011-07-21 | Reliance Industries Limited | Novel nucleating agents for polyolefins based on acetal compounds |
| CN104496960A (zh) * | 2014-11-24 | 2015-04-08 | 张家港保税区冠祥贸易有限公司 | 一种基于双(三羟甲基)丙烷可生物降解环缩醛烯类单体及其制备方法 |
| JP7004913B2 (ja) * | 2017-07-06 | 2022-02-04 | 新日本理化株式会社 | 新規な脂環式ジオール化合物 |
| WO2019117019A1 (ja) * | 2017-12-15 | 2019-06-20 | 三菱瓦斯化学株式会社 | ジオールの製造方法 |
| CN116940559A (zh) * | 2021-01-27 | 2023-10-24 | 新日本理化株式会社 | 环式二醇化合物、该化合物的制造方法和该化合物的用途 |
| TWI898113B (zh) * | 2021-01-27 | 2025-09-21 | 日商新日本理化股份有限公司 | 環式二醇化合物、該化合物之製造方法及該化合物之用途 |
| CN119613645B (zh) * | 2024-11-23 | 2025-11-18 | 安徽大学 | 一种三嗪基COFs及其制备方法、产过氧化氢的应用 |
-
1970
- 1970-07-16 US US00055591A patent/US3708502A/en not_active Expired - Lifetime
-
1971
- 1971-06-25 GB GB2999771A patent/GB1332073A/en not_active Expired
- 1971-06-25 CA CA116,720A patent/CA953728A/en not_active Expired
- 1971-07-12 DE DE19712135382 patent/DE2135382A1/de active Pending
- 1971-07-13 NL NL7109685A patent/NL7109685A/xx unknown
- 1971-07-16 FR FR7126174A patent/FR2101834A5/fr not_active Expired
- 1971-07-16 BE BE770104A patent/BE770104A/xx unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0297030A3 (en) * | 1987-05-27 | 1989-07-26 | Ciba-Geigy Ag | Polycycloacetals containing epoxy groups |
| CN116829618A (zh) * | 2021-01-27 | 2023-09-29 | 三菱瓦斯化学株式会社 | 热塑性树脂及含有该热塑性树脂的光学透镜 |
Also Published As
| Publication number | Publication date |
|---|---|
| NL7109685A (enExample) | 1972-01-18 |
| FR2101834A5 (enExample) | 1972-03-31 |
| BE770104A (fr) | 1972-01-17 |
| GB1332073A (en) | 1973-10-03 |
| CA953728A (en) | 1974-08-27 |
| US3708502A (en) | 1973-01-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE2135382A1 (de) | Terephthaldehydacetale | |
| DE835809C (de) | Verfahren zur Herstellung von Polyadditionsprodukten | |
| DE1285480B (de) | Verfahren zur Herstellung von Tris-(hydroxyphenyl)-alkanen | |
| DE60320122T2 (de) | Mit zwei endgruppen versehene polyester enthaltende polyesterlaminierharze mit verringerten voc-emissionsniveaus | |
| AT139124B (de) | Verfahren zur Herstellung von Kondensationsprodukten aus cyklischen Oxyverbindungen und Acetylen. | |
| DE2917381A1 (de) | Verfahren zur herstellung von imidazolen | |
| DE1593600A1 (de) | Verfahren zur Herstellung von alpha,ss-aethylenisch ungesaettigten Verbindungen | |
| DE2545338B2 (de) | Verfahren zur Herstellung von gegebenenfalls substituierten o-Hydroxymethyl-phenolen oder -naphtholen | |
| DE1173081C2 (de) | Verfahren zur herstellung hochkonzentrierter loesungen von metallseifen epoxydierter fettsaeuren in alkylphenolen | |
| DE2249921A1 (de) | Polyesteramide und verfahren zu ihrer herstellung | |
| DE960538C (de) | Verfahren zur Herstellung von 5-Benzyloxy-ª, 2-dinitrostyrolen | |
| DE878861C (de) | Verfahren zur Herstellung von Polyvinylformalen | |
| AT266149B (de) | Verfahren zur Herstellung von neuen Hexahydropyrimidonderivaten | |
| DE972503C (de) | Verfahren zur Herstellung hochpolymerer Polyester | |
| AT274800B (de) | Verfahren zur Herstellung von Indolderivaten | |
| AT296323B (de) | Verfahren zur Herstellung von 2,2-disubstituierten 2,3-Dihydro-benzo-1,3-oxazonen-4 | |
| AT235830B (de) | Verfahren zur Herstellung von Methylterephthalsäuredimethylester und Trimellithsäuretrimethylester | |
| AT204784B (de) | Verfahren zur Herstellung von synthetischen Harzen | |
| DE1215368B (de) | Verfahren zur Herstellung von lichtempfindlichen Polyvinylacetalen | |
| DE1935754C (de) | Verfahren zur Herstellung von 2,2 Dimethyl 2,3 dihydrobenz 1,3 oxazinon (4) | |
| DE969174C (de) | Verfahren zur Herstellung von als Weichmacher fuer Phenoplaste und Cellulosederivate geeigneten Estern | |
| AT201857B (de) | Verfahren zur Herstellung von ungesättigten Polyestermischungen | |
| AT344687B (de) | Verfahren zur herstellung von neuen aldehydolactonen | |
| DE3109148A1 (de) | Verfahren zur herstellung von styrolloeslichen ungesaettigten polyesterharzen | |
| DE2341735A1 (de) | Verfahren zur herstellung von polyestern |