JPS5738818A - Production of polyester - Google Patents
Production of polyesterInfo
- Publication number
- JPS5738818A JPS5738818A JP11347780A JP11347780A JPS5738818A JP S5738818 A JPS5738818 A JP S5738818A JP 11347780 A JP11347780 A JP 11347780A JP 11347780 A JP11347780 A JP 11347780A JP S5738818 A JPS5738818 A JP S5738818A
- Authority
- JP
- Japan
- Prior art keywords
- component
- glycol
- polyhydric alcohol
- dicarboxylic acid
- polyester
- 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
Landscapes
- Polyesters Or Polycarbonates (AREA)
Abstract
PURPOSE: To produce a polyester having excellent transparency and consistency in mechanical properties, by esterifying a dicarboxylic acid with a glycol in the presence of an organo-titanium compound and a specified polyhydric alcohol and, thereafter, polycondensing the resulting ester.
CONSTITUTION: A dicarboxylic acid component (A) containing at least 50mol% terephthalic acid is esterified with a glycol (B) containing at least 70mol% 1,4- butanediol in the presence of an organotitanium compound (C) as an esterifying catalyst containing 0.001W0.03wt% Ti based on polymer formed, e.g., tetraalkyl titanate, and at least 0.5mol time (with respect to Ti of component C) and up to 0.3mol% (based on component A) of polyhydric alcohol (D) of the formula, wherein R is a hydrocarbyl or methylol, at a temperature which is gradually raised from about 150°C to 220W230°C. After the esterification, the reaction system is gradually evacuated to below 1mmHg and the reaction mixture is polycondensed at 230W 260°C.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11347780A JPS5738818A (en) | 1980-08-20 | 1980-08-20 | Production of polyester |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11347780A JPS5738818A (en) | 1980-08-20 | 1980-08-20 | Production of polyester |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5738818A true JPS5738818A (en) | 1982-03-03 |
Family
ID=14613256
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11347780A Pending JPS5738818A (en) | 1980-08-20 | 1980-08-20 | Production of polyester |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5738818A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5083496A (en) * | 1973-11-12 | 1975-07-05 |
-
1980
- 1980-08-20 JP JP11347780A patent/JPS5738818A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5083496A (en) * | 1973-11-12 | 1975-07-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR830002831A (en) | High molecular weight polyester manufacturing method | |
GB1514275A (en) | Continuous manufacture of linear polyesters | |
US4835213A (en) | Process for producing lactone polymer and an anti-shrinking thermosetting resin composition having formulated therein said lactone polymer as an anti-shrinking agent | |
GB1464485A (en) | Process for producing polyesters | |
JPS5738818A (en) | Production of polyester | |
JPS5738819A (en) | Production of polyester-polyether copolymer | |
US4153781A (en) | Method of producing polyesters | |
KR880003995A (en) | Manufacturing method of copolyester | |
JPS60219226A (en) | Production of high-polymerization degree polyester | |
JPS5738817A (en) | Production of polyester/polyether copolymer | |
US4088635A (en) | Polyester manufacture | |
US4001188A (en) | Dimethyl 2,5-dibromoterephthalate esterification | |
GB1466591A (en) | Production of terephthalate polyesters | |
KR100322956B1 (en) | Manufacturing method of thermoplastic polyester with low terminal carboxyl group content | |
JP3329982B2 (en) | Manufacturing method of thermoplastic polyester | |
KR100200038B1 (en) | Process for preparing polyester | |
ES444295A1 (en) | Process for preparing polyesters | |
JPS5738820A (en) | Production of amido-containing copolyester | |
KR920011025B1 (en) | Process for preparing excellent hue and heat stability polyester | |
JPS5620027A (en) | Production of polyester | |
JPS5562922A (en) | Preparation of polyester | |
JPS5257289A (en) | Production of polyester | |
JPS55145731A (en) | Preparation of polyester with high terminal carboxyl group content | |
JPS5834492B2 (en) | Polyester Noseizouhouhou | |
JPS5556121A (en) | Preparation of polyester |