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
Application number
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Publication of GB1251093A publication Critical patent/GB1251093A/en
Expired legal-status Critical Current

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.
GB1251093D 1968-10-23 1969-10-17 Expired GB1251093A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Cited By (6)

* Cited by examiner, † Cited by third party
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

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees