CA2058417A1 - Amorphous polymers and process for the production thereof - Google Patents
Amorphous polymers and process for the production thereofInfo
- Publication number
- CA2058417A1 CA2058417A1 CA 2058417 CA2058417A CA2058417A1 CA 2058417 A1 CA2058417 A1 CA 2058417A1 CA 2058417 CA2058417 CA 2058417 CA 2058417 A CA2058417 A CA 2058417A CA 2058417 A1 CA2058417 A1 CA 2058417A1
- Authority
- CA
- Canada
- Prior art keywords
- copolymer
- iii
- producing
- unit represented
- amorphous polymer
- 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.)
- Granted
Links
- 229920006125 amorphous polymer Polymers 0.000 title abstract 4
- 238000000034 method Methods 0.000 title abstract 4
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- 229920001577 copolymer Polymers 0.000 abstract 3
- TXCDCPKCNAJMEE-UHFFFAOYSA-N dibenzofuran Chemical compound C1=CC=C2C3=CC=CC=C3OC2=C1 TXCDCPKCNAJMEE-UHFFFAOYSA-N 0.000 abstract 3
- 239000007858 starting material Substances 0.000 abstract 2
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 abstract 1
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 125000002947 alkylene group Chemical group 0.000 abstract 1
- 150000001907 coumarones Chemical class 0.000 abstract 1
- 238000000465 moulding Methods 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 1
Landscapes
- Polyethers (AREA)
Abstract
There are disclosed dibenzofuran amorphous polymer comprising a recurring unit represented by following formula (II) and having a molecular weight giving a reduced viscosity of at least 0.2 dl/g as measured in the form of a 0.5% (W/V) solution in N-methylpyrrolidone at 25°C, a process for producing said amorphous polymer, a dibenzofuran copolymer comprising, in addition to a recurring unit represented by following formula (II), at least one type of recurring unit represented by following general formula (III) in a specific proportion and having a molecular weight giving a reduced viscosity of at least 0.2 dl/g as measured in the form of a 0.5% (W/V) solution in concentrated sulfuric acid at 25°C, and a process for producing said copolymer.
Formula:
(see fig. II) General Formula (III):
(see fig. III) wherein A is -O-, -CO-, -S-, SO2-, a divalent alkylene group or a single bond and n is a number of 0, 1 or 2.
There are also disclosed benzofuran derivatives useful as a starting material and a process for producing said derivatives. The above-mentioned amorphous polymer and copolymer are excellent in stability at the time of molding, low in polarity an low in moisture absorption, so that they are useful as starting materials for the manufacture of molded articles.
Formula:
(see fig. II) General Formula (III):
(see fig. III) wherein A is -O-, -CO-, -S-, SO2-, a divalent alkylene group or a single bond and n is a number of 0, 1 or 2.
There are also disclosed benzofuran derivatives useful as a starting material and a process for producing said derivatives. The above-mentioned amorphous polymer and copolymer are excellent in stability at the time of molding, low in polarity an low in moisture absorption, so that they are useful as starting materials for the manufacture of molded articles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2058417 CA2058417C (en) | 1990-03-16 | 1990-03-16 | Amorphous polymers and process for the production thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2058417 CA2058417C (en) | 1990-03-16 | 1990-03-16 | Amorphous polymers and process for the production thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2058417A1 true CA2058417A1 (en) | 1991-09-17 |
| CA2058417C CA2058417C (en) | 1997-09-23 |
Family
ID=4148988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2058417 Expired - Fee Related CA2058417C (en) | 1990-03-16 | 1990-03-16 | Amorphous polymers and process for the production thereof |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2058417C (en) |
-
1990
- 1990-03-16 CA CA 2058417 patent/CA2058417C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA2058417C (en) | 1997-09-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| MY121468A (en) | Production of poly(ethylene terephthalate) | |
| HUT77057A (en) | Biodegradable polymers, process for their production and use for the production of biodegradable formwork | |
| CA2148478A1 (en) | Thermoplastic Biodegradable Resins and a Process of Preparation Thereof | |
| CA2168041A1 (en) | Viscosity-modified lactide polymer composition and process for manufacture thereof | |
| FI932442A0 (en) | The crystalline propylene polymer used in the manufacture of bearings and the like is also used in the preparation of frameworks. | |
| EP1002809A4 (en) | STATISTICAL PROPYLENE / ETHYLENE COPOLYMER, SHAPED MATERIAL AND SHAPED OBJECT | |
| IE45481L (en) | Polyamide compositions | |
| DE69627984D1 (en) | PRODUCTION OF POLYETHYLENE TEREPHTALATE | |
| ATE85353T1 (en) | PROCESS FOR PRODUCTION OF AROMATIC THERMOTROPIC COPOLYESTERAMIDES AND CORRESPONDING COPOLYESTERAMIDES. | |
| EP1550679A4 (en) | Cycloolefin copolymer formed by ring-opening polymerization, process for producing the same, and optical material | |
| CA2058417A1 (en) | Amorphous polymers and process for the production thereof | |
| JPS56136844A (en) | Polymer composition | |
| CH609992A5 (en) | Process for the preparation of block copolyesteramides usable as moulding products | |
| DE3888487D1 (en) | Heat-resistant film and process for its production. | |
| EP0356692A3 (en) | Process for production of stretched moldings | |
| EP0297849A3 (en) | Production of aromatic amorphous thermoplastic polymers | |
| ATE85986T1 (en) | EXPANDABLE MOLDING COMPOUNDS WITH HIGH HEAT RESISTANCE AND PROCESS FOR THEIR PRODUCTION. | |
| JPS57207644A (en) | Resin composition | |
| US4640948A (en) | Benzothiazole-polyamide composition | |
| JPS54125270A (en) | Production of oriented product of polyester resin | |
| JPS6469631A (en) | Production of polyazomethine | |
| JPS57133125A (en) | Preparation of novel water-soluble or water-dispersible polyester resin | |
| EP0325061A3 (en) | Process for producing poly (para-phenylene-sulfide) | |
| JPS57180605A (en) | New azido sugar polymer and its production | |
| JPS52136297A (en) | Production of polyacyloxalamidrazone fibers of filsm |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |