GB1050200A - - Google Patents
Info
- Publication number
- GB1050200A GB1050200A GB1050200DA GB1050200A GB 1050200 A GB1050200 A GB 1050200A GB 1050200D A GB1050200D A GB 1050200DA GB 1050200 A GB1050200 A GB 1050200A
- Authority
- GB
- United Kingdom
- Prior art keywords
- zinc
- compound
- fumaric
- fumaric acid
- maleic
- 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.)
- Active
Links
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
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/52—Polycarboxylic acids or polyhydroxy compounds in which at least one of the two components contains aliphatic unsaturation
Abstract
1,050,200. Crystallization of polyethylene fumarate polyesters. CHEMISCHE WERKE WITTEN. Oct. 11, 1965 [Nov. 12. 1964], No. 43073/65. Heading C3R. In the production of friable polyesters containing fumaric acid and ethylene glycol residues, zinc or a zinc compound is added as a crystallization accelerator. Amounts of 0À01- 1 wt. per cent of the polyester of zinc or zinc compound are usually employed. Suitable zinc compounds are the oxide, carbonate, stearate, acetate, phosphate, pyrophosphate, iodide, chloride and borate. The fumaric acid residues may derive from fumaric or maleic acid or functional derivative thereof, e.g. maleic anhydride. The addition of an isomerization catalyst, e.g. I 2 or a cyclic secondary amine, is preferable when a maleic compound is used. In mixtures the fumaric component preferably exceeds 50% mol. Minor amounts of saturated symmetrical dicarboxylic acids and glycols may also be used, e.g. adipic and terephthalic acids, and tetramethylene, hexamethylene and decamethylene glycols. The zinc or compound thereof may be added before, during or after polymerization. In the examples fumaric acid/ ethylene glycol condensates of molecular weights about 850 or about 1150 are prepared in the presence of 0À02-1% by weight of zinc or zinc compounds named above.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEC0034341 | 1964-11-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1050200A true GB1050200A (en) |
Family
ID=7021263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1050200D Active GB1050200A (en) | 1964-11-12 |
Country Status (7)
| Country | Link |
|---|---|
| AT (1) | AT257942B (en) |
| BE (1) | BE672194A (en) |
| DE (1) | DE1495392A1 (en) |
| FR (1) | FR1455516A (en) |
| GB (1) | GB1050200A (en) |
| NL (1) | NL6509343A (en) |
| SE (1) | SE315736B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1044650B (en) * | 1975-10-30 | 1980-04-21 | Sir Soc Italiana Resine Spa | MOLDING COMPOSITION INCLUDING AN UNSATURATED POLYESTER |
-
0
- GB GB1050200D patent/GB1050200A/en active Active
-
1964
- 1964-11-12 DE DE19641495392 patent/DE1495392A1/en active Pending
-
1965
- 1965-05-13 AT AT432865A patent/AT257942B/en active
- 1965-07-20 NL NL6509343A patent/NL6509343A/xx unknown
- 1965-11-01 SE SE14082/65A patent/SE315736B/xx unknown
- 1965-11-10 BE BE672194D patent/BE672194A/xx unknown
- 1965-11-12 FR FR38249A patent/FR1455516A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1455516A (en) | 1966-04-01 |
| SE315736B (en) | 1969-10-06 |
| DE1495392A1 (en) | 1969-01-16 |
| AT257942B (en) | 1967-10-25 |
| NL6509343A (en) | 1966-05-13 |
| BE672194A (en) | 1966-03-16 |
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