GB1489430A - Solid phase polymerization of polybutylene terephthalate - Google Patents
Solid phase polymerization of polybutylene terephthalateInfo
- Publication number
- GB1489430A GB1489430A GB4317274A GB4317274A GB1489430A GB 1489430 A GB1489430 A GB 1489430A GB 4317274 A GB4317274 A GB 4317274A GB 4317274 A GB4317274 A GB 4317274A GB 1489430 A GB1489430 A GB 1489430A
- Authority
- GB
- United Kingdom
- Prior art keywords
- solid phase
- phase polymerization
- polybutylene terephthalate
- polyester
- intrinsic viscosity
- 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.)
- Expired
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
- C08G63/16—Dicarboxylic acids and dihydroxy compounds
- C08G63/20—Polyesters having been prepared in the presence of compounds having one reactive group or more than two reactive groups
-
- 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
- C08G63/78—Preparation processes
- C08G63/80—Solid-state polycondensation
Abstract
1489430 Solid phase polymerization of polybutylene terephthalate GENERAL ELECTRIC CO 4 Oct 1974 [12 Nov 1973] 43172/73 Heading C3R Solid phase polymerization of particulate polybutylene terephthalate or a branched copolyester thereof with 0À01 to 3 mole per cent, based on the terephthalate units, of units of a branching compound, the polyester having an intrinsic viscosity of less than 1À05 dl./g., comprises heating particles of the polyester by themselves at a temperature of above 150‹ C. and below the melting point thereof until an intrinsic viscosity of at least 1À05 dl./g. is obtained. A vacuum may be applied to the particles during the heating step. The examples describe solid phase polymerization of polybutylene terephthalate and copolyesters thereof with trimethylolethane and pentaerythritol.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US41516173A | 1973-11-12 | 1973-11-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1489430A true GB1489430A (en) | 1977-10-19 |
Family
ID=23644602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4317274A Expired GB1489430A (en) | 1973-11-12 | 1974-10-04 | Solid phase polymerization of polybutylene terephthalate |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS5083496A (en) |
| BR (1) | BR7408718D0 (en) |
| DE (1) | DE2453270A1 (en) |
| FR (1) | FR2250782A1 (en) |
| GB (1) | GB1489430A (en) |
| IT (1) | IT1025589B (en) |
| NL (1) | NL7414687A (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1579779A (en) * | 1976-12-20 | 1980-11-26 | Gen Electric | Flame-retardant branched polyester compositions |
| JPS5738818A (en) * | 1980-08-20 | 1982-03-03 | Toray Ind Inc | Production of polyester |
| DE3423852A1 (en) * | 1984-06-28 | 1986-01-02 | Bergwerksverband Gmbh, 4300 Essen | METHOD FOR PRODUCING FOAMS |
| ES2070878T3 (en) * | 1989-10-13 | 1995-06-16 | Phobos Nv | PROCEDURE FOR THE CONTINUOUS PRODUCTION OF HIGH MOLECULAR POLYESTER RESIN. |
| IT1245599B (en) * | 1991-03-29 | 1994-09-29 | M & G Ricerche Spa | COPOLYESTER RESINS WITH HIGH MOLECULAR WEIGHT AND LOW MELTING POINT |
| IT1245597B (en) * | 1991-03-29 | 1994-09-29 | M & G Ricerche Spa | PROCESS FOR THE PRODUCTION OF HIGH MOLECULAR WEIGHT POLYESTER RESINS |
| IT1245598B (en) * | 1991-03-29 | 1994-09-29 | M & G Ricerche Spa | PROCESS FOR THE PRODUCTION OF HIGH MOLECULAR WEIGHT POLYESTER RESINS |
| IT1258965B (en) * | 1992-06-10 | 1996-03-11 | PROCEDURE FOR THE PRODUCTION OF POLYESTER RESINS FOR FIBERS | |
| IT1264381B1 (en) | 1993-05-07 | 1996-09-23 | M & G Ricerche Spa | ARTICLES FORMED FROM POLYESTER RESINS |
| IT1275478B (en) | 1995-07-05 | 1997-08-07 | M & G Ricerche Spa | POLYESTER RESINS WITH IMPROVED PROPERTIES |
-
1974
- 1974-10-04 GB GB4317274A patent/GB1489430A/en not_active Expired
- 1974-10-18 BR BR871874A patent/BR7408718D0/en unknown
- 1974-11-07 FR FR7436919A patent/FR2250782A1/fr not_active Withdrawn
- 1974-11-09 DE DE19742453270 patent/DE2453270A1/en active Pending
- 1974-11-11 JP JP12906874A patent/JPS5083496A/ja active Pending
- 1974-11-11 NL NL7414687A patent/NL7414687A/en not_active Application Discontinuation
- 1974-11-11 IT IT2929774A patent/IT1025589B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| BR7408718D0 (en) | 1975-09-16 |
| AU7350474A (en) | 1976-03-25 |
| JPS5083496A (en) | 1975-07-05 |
| DE2453270A1 (en) | 1975-05-15 |
| NL7414687A (en) | 1975-05-14 |
| FR2250782A1 (en) | 1975-06-06 |
| IT1025589B (en) | 1978-08-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |