GB1251093A - - Google Patents
Info
- Publication number
- GB1251093A GB1251093A GB1251093DA GB1251093A GB 1251093 A GB1251093 A GB 1251093A GB 1251093D A GB1251093D A GB 1251093DA GB 1251093 A GB1251093 A GB 1251093A
- Authority
- GB
- United Kingdom
- Prior art keywords
- molecular weight
- polyester
- oct
- granules
- polyesters
- 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
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/12—Powdering or granulating
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyesters Or Polycarbonates (AREA)
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
1,251,093. High molecular weight polyesters. FARBWERKE HOECHST A.G. 17 Oct., 1969 [23 Oct., 1968], No. 51123/69. Heading C3R. Polyesters (e.g. polyethylene terephthalate) of high molecular weight are obtained by crystallizing and drying a lower molecular weight amorphous polyester in a fluidized bed dryer by passing a hot inert gas through a charge of polyester granules at a rate which is insufficient to maintain fluidization and where the granules are kept uniformly dispersed by vibration, and thereafter subjecting the polyester to a solid phase condensation.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19681804551 DE1804551A1 (en) | 1968-10-23 | 1968-10-23 | Process for the production of high molecular weight polyesters |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1251093A true GB1251093A (en) | 1971-10-27 |
Family
ID=5711212
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1251093D Expired GB1251093A (en) | 1968-10-23 | 1969-10-17 |
Country Status (7)
Country | Link |
---|---|
JP (1) | JPS4823358B1 (en) |
AT (1) | AT292317B (en) |
BE (1) | BE740711A (en) |
DE (1) | DE1804551A1 (en) |
FR (1) | FR2021393A1 (en) |
GB (1) | GB1251093A (en) |
NL (1) | NL6915225A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4360661A (en) | 1979-12-21 | 1982-11-23 | Chemische Werke Huels Ag | Process for the regeneration and further processing of inactive, linear polyalkylene terephthalates |
US4387213A (en) | 1979-12-21 | 1983-06-07 | Chemische Werke Huels Ag | Process for the condensation of linear polyalkylene terephthalates |
US5408035A (en) * | 1991-10-16 | 1995-04-18 | Shell Oil Company | Solid state polymerization |
WO2002018113A1 (en) * | 2000-08-29 | 2002-03-07 | Bühler AG | Method and device for producing spherical particles from a polymer melt |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5084848U (en) * | 1973-12-07 | 1975-07-19 | ||
DE19849485B9 (en) * | 1998-10-27 | 2006-09-14 | Uhde Gmbh | Process and plant for producing granules of polyfunctional carboxylic acids and alcohols, in particular PET granules |
DE102005040851B3 (en) * | 2005-08-29 | 2007-04-05 | Vibra Maschinenfabrik Schultheis Gmbh & Co. | Method and apparatus for crystallizing plastic granules liable to stick, in particular PET and PU granules |
WO2012081385A1 (en) * | 2010-12-15 | 2012-06-21 | 富士フイルム株式会社 | Method for producing polyester film, polyester film for solar cell, and solar cell electric power generation module |
-
1968
- 1968-10-23 DE DE19681804551 patent/DE1804551A1/en active Pending
-
1969
- 1969-10-08 NL NL6915225A patent/NL6915225A/xx unknown
- 1969-10-17 GB GB1251093D patent/GB1251093A/en not_active Expired
- 1969-10-23 FR FR6936375A patent/FR2021393A1/fr not_active Withdrawn
- 1969-10-23 AT AT1001069A patent/AT292317B/en not_active IP Right Cessation
- 1969-10-23 BE BE740711D patent/BE740711A/xx unknown
- 1969-10-23 JP JP8425969A patent/JPS4823358B1/ja active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4360661A (en) | 1979-12-21 | 1982-11-23 | Chemische Werke Huels Ag | Process for the regeneration and further processing of inactive, linear polyalkylene terephthalates |
US4387213A (en) | 1979-12-21 | 1983-06-07 | Chemische Werke Huels Ag | Process for the condensation of linear polyalkylene terephthalates |
US5408035A (en) * | 1991-10-16 | 1995-04-18 | Shell Oil Company | Solid state polymerization |
WO2002018113A1 (en) * | 2000-08-29 | 2002-03-07 | Bühler AG | Method and device for producing spherical particles from a polymer melt |
EA007520B1 (en) * | 2000-08-29 | 2006-10-27 | Бюлер Аг | Method and device for producing spherical particles from a polymer melt |
US7208107B2 (en) | 2000-08-29 | 2007-04-24 | Buhler Ag | Method and device for producing spherical particles from a polymer melt |
Also Published As
Publication number | Publication date |
---|---|
BE740711A (en) | 1970-04-23 |
JPS4823358B1 (en) | 1973-07-12 |
DE1804551A1 (en) | 1970-05-27 |
FR2021393A1 (en) | 1970-07-24 |
AT292317B (en) | 1971-08-25 |
NL6915225A (en) | 1970-04-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ES363300A1 (en) | Process for crystallization,drying and solid-state polymerization of polyesters | |
NO892604L (en) | METHOD AND APPARATUS FOR MICROSPHERE MANUFACTURING | |
GB1251093A (en) | ||
ZA706626B (en) | Fluidized bed reactor with preheating of fluidizing air | |
GB1524777A (en) | Process for drying chlorinated polymers | |
Siegell | DEFLUIDIZATION PHENOMENA IN FLUIDIZED BEDS OF STICKY PARTICLES AT HIGH TEMPERATURES. | |
GB1530840A (en) | Fluidized bed drying process for porous materials | |
GB1201523A (en) | Finely divided polyesters | |
GB1381480A (en) | Fluidized bed process and apparatus | |
GB1301729A (en) | ||
GB1261536A (en) | Fluidized bed dryer | |
GB1039887A (en) | Apparatus for producing gaseous and calcined products by the thermal decomposition of particulate raw materials | |
GB1246064A (en) | Process for the manufacture of high-molecular weight polyesters | |
April | Energy transfer in the char zone of a charring ablator | |
GB1111097A (en) | Fluidised beds | |
CA544638A (en) | Method of fluidizing granular solid material and generating circulating currents within the fluidized mass | |
AT320979B (en) | Free-flowing, storage-stable, polymerizable lactam-catalyst-activator mixtures and production of polyamides from them | |
GB1231370A (en) | ||
Lane | A comparative study of the structure of zooplankton communities | |
Jessen | The ecology and taxonomy of the caprellidae (Order: Amphipoda; Suborder: Caprellidea) of the Coos Bay, Oregon, area | |
GB960477A (en) | Method for the drying of granular materials | |
CA1021206A (en) | Fluidized bed furnace having coarse particle discharging device | |
GB1284139A (en) | Production of aliphatic dinitriles | |
Armstrong | AN APPROACH TO THE SYNTHESIS OF METHYL 2ALPHA, 7ALPHA, 8BETA-TRIMETHYL-CIS-1-DECALONE-10BETA-CARBOXYLATE | |
SAKURAI | Solar flare emissions and geophysical disturbances(Nature of solar flare emissions and geophysical disturbances) |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |